Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2018	Aug. 06, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Trading Symbol	OBNK
Entity Registrant Name	ORIGIN BANCORP, INC.
Entity CIK	0001516912
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		23,574,887

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Cash and due from banks	$ 71,709	$ 78,489
Interest-bearing deposits in banks	97,865	108,698
Total cash and cash equivalents	169,574	187,187
Securities:
Available for sale	507,513	404,532
Held to maturity ($19,700 and $20,265 at fair value, respectively)	19,731	20,188
Securities carried at fair value through income	11,413	12,033
Total securities	538,657	436,753
Non-marketable equity securities held in other financial institutions	25,005	22,967
Loans held for sale ($32,587 and $32,768 at fair value, respectively)	62,072	65,343
Loans, net of allowance for loan losses of $34,151 and $37,083, respectively ($20,872 and $26,611 at fair value, respectively)	3,337,945	3,203,948
Premises and equipment, net	77,064	77,408
Mortgage servicing rights	25,738	24,182
Cash surrender value of bank-owned life insurance	28,326	27,993
Goodwill and other intangible assets, net	24,113	24,336
Accrued interest receivable and other assets	83,298	83,878
Total assets	4,371,792	4,153,995
Liabilities and Stockholders' Equity
Noninterest-bearing deposits	950,080	832,853
Interest-bearing deposits	1,995,798	2,060,068
Time deposits	726,219	619,093
Total deposits	3,672,097	3,512,014
FHLB advances and other borrowings	139,092	144,357
Junior subordinated debentures	9,631	9,619
Accrued expenses and other liabilities	31,616	32,663
Total liabilities	3,852,436	3,698,653
Commitments and contingencies	0	34,991
Stockholders' equity:
Common stock ($5.00 par value; 50,000,000 shares authorized; 23,504,063 and 19,518,752 shares issued at June 30, 2018 and December 31, 2017, respectively)	117,520	97,594
Additional paid‑in capital	238,260	146,061
Retained earnings	167,628	145,122
Accumulated other comprehensive (loss) income	(4,052)	1,307
Stockholders' equity, before ESOP-owned shares	519,356	455,342
Less: ESOP-owned shares	0	34,991
Total stockholders' equity	519,356	420,351
Total liabilities and stockholders' equity	4,371,792	4,153,995
Preferred Stock Series SBLF
Stockholders' equity:
Preferred stock	0	48,260
Preferred Stock Series D
Stockholders' equity:
Preferred stock	$ 0	$ 16,998

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Securities held to maturity, fair value	$ 19,700	$ 20,265
Loans held for sale	32,587	32,768
Allowance for loan losses	34,151	37,083
Loans at fair value	$ 20,872	$ 26,611
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Common stock, par value ($ per share)	$ 5.00	$ 5.00
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	23,504,063	19,518,752
Preferred Stock Series SBLF
Preferred stock, shares authorized (in shares)	48,260	48,260
Preferred stock, shares issued (in shares)	0	48,260
Preferred Stock Series D
Preferred stock, shares authorized (in shares)	950,000	950,000
Preferred stock, shares issued (in shares)	0	901,644

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Consolidated Statements of Income - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest and dividend income
Interest and fees on loans	$ 40,219	$ 33,782	$ 77,693	$ 65,750
Investment securities-taxable	2,057	1,630	3,797	3,078
Investment securities-nontaxable	1,156	1,192	2,340	2,392
Interest and dividend income on assets held in other financial institutions	1,320	689	2,366	1,351
Total interest and dividend income	44,752	37,293	86,196	72,571
Interest expense
Interest-bearing deposits	6,820	4,636	12,800	8,872
FHLB advances and other borrowings	624	604	1,228	1,209
Subordinated debentures	138	136	274	271
Total interest expense	7,582	5,376	14,302	10,352
Net interest income	37,170	31,917	71,894	62,219
Provision (benefit) for credit losses	311	1,953	(1,213)	4,767
Net interest income after provision (benefit) for credit losses	36,859	29,964	73,107	57,452
Noninterest income
Service charges and fees	3,157	2,883	6,171	5,655
Mortgage banking revenue	2,317	4,713	4,711	8,805
Insurance commission and fee income	1,826	1,821	3,933	3,745
Loss on non-mortgage loans held for sale, net	0	(7,299)	0	(7,299)
Gain on sales and disposals of other assets, net	121	1,545	60	1,416
Other fee income	403	507	855	1,186
Other income	2,791	1,136	4,685	1,923
Total noninterest income	10,615	5,306	20,415	15,431
Noninterest expense
Salaries and employee benefits	19,859	17,718	38,100	34,305
Occupancy and equipment, net	3,793	3,926	7,446	7,870
Data processing	1,347	1,252	2,820	2,525
Electronic banking	680	624	1,423	1,263
Communications	510	533	1,025	966
Advertising and marketing	1,022	618	1,679	1,207
Professional services	598	1,582	1,263	2,191
Regulatory assessments	660	699	1,380	1,380
Loan related expenses	798	1,182	1,511	1,967
Office and operations	1,588	1,499	2,866	2,775
Other expenses	1,157	1,041	2,356	2,011
Total noninterest expense	32,012	30,674	61,869	58,460
Income before income tax expense	15,462	4,596	31,653	14,423
Income tax expense	2,760	773	5,544	3,353
Net income	12,702	3,823	26,109	11,070
Preferred stock dividends	808	1,115	1,923	2,230
Net income allocated to participating stockholders	40	102	921	369
Net income available to common stockholders	$ 11,854	$ 2,606	$ 23,265	$ 8,471
Basic earnings per common share ($ per share)	$ 0.54	$ 0.13	$ 1.14	$ 0.44
Diluted earnings per common share ($ per share)	$ 0.53	$ 0.13	$ 1.13	$ 0.43

Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 12,702	$ 3,823	$ 26,109	$ 11,070
Securities available for sale and transferred securities:
Net unrealized holding (losses) gains arising during the period	(1,696)	1,009	(7,380)	1,440
Net losses realized as a yield adjustment in interest on investment securities	(3)	(3)	(5)	(5)
Change in the net unrealized (losses) gains on investment securities, before tax	(1,699)	1,006	(7,385)	1,435
Income tax (benefit) expense related to net unrealized (losses) gains arising during the period	(357)	353	(1,551)	505
Change in the net unrealized (loss) gain on investment securities, net of tax	(1,342)	653	(5,834)	930
Cash flow hedges:
Net unrealized gains (losses) arising during the period	57	(84)	223	(82)
Reclassification adjustment for losses included in net income	5	26	21	57
Change in the net unrealized gain (loss) on cash flow hedges, before tax	62	(58)	244	(25)
Income tax expense (benefit) related to net unrealized gains on cash flow hedges	13	(20)	51	(9)
Change in the net unrealized gain (loss) on cash flow hedges, net of tax	49	(38)	193	(16)
Other comprehensive (loss) income, net of tax	(1,293)	615	(5,641)	914
Comprehensive income	$ 11,409	$ 4,438	$ 20,468	$ 11,984

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock Series SBLF	Preferred Stock Series D	Common Stock	Preferred Stock Preferred Stock Series SBLF	Preferred Stock Preferred Stock Series D	Additional Paid-In Capital	Retained Earnings	Retained Earnings Preferred Stock Series SBLF	Retained Earnings Preferred Stock Series D	Accumulated Other Comprehensive Income (loss)	Less: ESOP-Owned Shares
Common shares outstanding, beginning balance at Dec. 31, 2016				19,483,718
Stockholders' equity, beginning balance at Dec. 31, 2016	$ 420,093			$ 97,419	$ 48,260	$ 16,998	$ 145,068	$ 137,449			$ 3,463	$ (28,564)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	11,070
Other comprehensive (loss) income, net of tax	914										914
Recognition of stock compensation, net (in shares)				14,213
Recognition of stock compensation, net	412			$ 71			341
Net change in ESOP shares	(668)											(668)
Dividends declared - preferred stock		$ (2,172)	$ (58)						$ (2,172)	$ (58)
Dividends declared - common stock	(1,268)							(1,268)
Common shares outstanding, ending balance at Jun. 30, 2017				19,497,931
Stockholders' equity, ending balance at Jun. 30, 2017	428,323			$ 97,490	48,260	16,998	145,409	145,021			4,377	(29,232)
Common shares outstanding, beginning balance at Dec. 31, 2017				19,518,752
Stockholders' equity, beginning balance at Dec. 31, 2017	420,351			$ 97,594	48,260	16,998	146,061	145,122			1,307	(34,991)
Reclassification of tax effects related to the adoption of ASU 2018-02 at Dec. 31, 2017	0							(282)			282
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	26,109							26,109
Other comprehensive (loss) income, net of tax	(5,641)										(5,641)
Recognition of stock compensation, net (in shares)				38,241
Recognition of stock compensation, net	392			$ 191			201
Terminated ESOP put option	34,991											34,991
Stock issuance - common (in shares)				3,045,426
Stock issuance - common	94,735			$ 15,227			79,508
Redemption of preferred stock - Series SBLF	(48,260)				(48,260)
Conversion of preferred stock - Series D to common stock (in shares)				901,644
Conversion of preferred stock - Series D to common stock	0			$ 4,508		16,998	12,490
Dividends declared - preferred stock		$ (1,894)	$ (29)						$ (1,894)	$ (29)
Dividends declared - common stock	(1,398)							(1,398)
Common shares outstanding, ending balance at Jun. 30, 2018				23,504,063
Stockholders' equity, ending balance at Jun. 30, 2018	$ 519,356			$ 117,520	$ 0	$ 0	$ 238,260	$ 167,628			$ (4,052)	$ 0

Statement of Cash Flows - USD ($) $ in Thousands	6 Months Ended
Statement of Cash Flows - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 26,109	$ 11,070
Adjustments to reconcile net income to net cash provided by operating activities:
Provision (benefit) for credit losses	(1,213)	4,767
Depreciation and amortization	2,698	2,997
Net amortization on securities	730	678
Amortization of investments in tax credit funds	975	1,031
Deferred income tax expense	3,163	4,048
Stock-based compensation expense	417	492
Originations of mortgage loans held for sale	(156,646)	(247,619)
Proceeds from mortgage loans held for sale	159,321	256,836
Originations of mortgage servicing rights	(993)	(1,436)
Net loss (gain) on disposals of premises and equipment	19	(1,498)
Loss on non-mortgage loans held for sale	0	7,299
Increase in the cash surrender value of life insurance	(333)	(323)
Net (gains) losses on sales and write downs of other real estate owned	(79)	82
Net increase (decrease) in accrued interest and other assets	95	(5,896)
Net (decrease) increase in accrued expenses and other liabilities	(3,256)	2,077
Other operating activities, net	(989)	15
Net cash provided by operating activities	30,018	34,620
Cash flows from investing activities:
Purchases of securities available for sale	(318,649)	(220,142)
Maturities, paydowns and calls of securities available for sale	207,554	205,404
Maturities, paydowns and calls of securities held to maturity	456	276
Paydowns of securities carried at fair value	230	164
Net purchases of non-marketable equity securities held in other financial institutions	0	(1,133)
Paydowns and proceeds from non-mortgage loans held for sale	0	7,250
Originations of mortgage warehouse loans	(2,237,738)	(1,219,654)
Proceeds from pay-offs of mortgage warehouse loans	2,222,288	1,178,178
Net increase in loans, excluding mortgage warehouse and loans held for sale	(118,178)	(44,489)
Return of capital on limited partnership investments	144	741
Capital calls on limited partnership investments	(2,125)	(1,143)
Purchases of premises and equipment	(2,261)	(1,391)
Proceeds from sales of premises and equipment	111	6,790
Proceeds from sales of other real estate owned	586	1,294
Net cash used in investing activities	(247,582)	(87,855)
Cash flows from financing activities:
Net increase (decrease) in deposits	160,083	(38,942)
Net decrease in other borrowed funds	(499)	(476)
Net decrease in securities sold under agreements to repurchase	(1,676)	(4,991)
Dividends paid	(4,407)	(3,498)
Taxes paid related to net share settlement of equity awards	(25)	(80)
Proceeds from issuance of common stock, net of offering expenses	94,735	0
Redemption of Series SBLF preferred stock	(48,260)	0
Net cash provided by (used in) financing activities	199,951	(47,987)
Net decrease in cash and cash equivalents	(17,613)	(101,222)
Cash and cash equivalents at beginning of period	187,187	259,883
Cash and cash equivalents at end of period	169,574	158,661
Income taxes paid	374	4,805
Significant non-cash transactions:
Real estate acquired in settlement of loans	662	750
Conversion of Series D preferred stock to common stock	$ 16,998	$ 0

Significant Accounting Policies	6 Months Ended
Significant Accounting Policies	Jun. 30, 2018
Accounting Policies [Abstract]
Significant Accounting Policies	Note 1 - Significant Accounting Policies Nature of Operations: Origin Bancorp, Inc. (the "Company") is a financial holding company headquartered in Ruston, Louisiana. The Company's wholly owned bank subsidiary, Origin Bank (the "Bank"), provides a broad range of financial services to businesses, municipalities, high net worth individuals and retail clients. The Company currently operates 41 banking centers located in North Louisiana, Central Mississippi, Dallas/Fort Worth and Houston, Texas. The Company principally operates in one business segment, which is community banking. Consolidation: The condensed consolidated financial statements include the accounts of the Company and all other entities in which the Company has a controlling financial interest, including the Bank and Davison Insurance Agency, LLC ("Davison Insurance"), and Davison Insurance’s wholly owned subsidiary, Thomas & Farr Agency, LLC (“T&F”). These condensed consolidated interim financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("US GAAP") and with the rules and regulations of the Securities and Exchange Commission (the "SEC") for interim financial reporting. Accordingly, they do not include all of the information and footnotes required by US GAAP for complete financial statements. In the opinion of management, all normal and recurring adjustments which are considered necessary to fairly present the results for the interim periods presented have been included. These unaudited statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2017, included in the Company's prospectus filed with the SEC on May 9, 2018, pursuant to Section 424(b) of the Securities Act of 1933, as amended. Interim results are not necessarily indicative of results for a full year. Certain prior year amounts have been reclassified to conform to the current year financial statement presentations. These changes and reclassifications did not impact previously reported net income or comprehensive income. The Company’s significant accounting policies are described in Note 1 of the Notes to Consolidated Financial Statements in the 2017, financial statements included in the Company's prospectus filed with the SEC on May 9, 2018. There were no new accounting policies or changes to existing policies adopted during the first six months of 2018, that had a significant effect on the Company’s results of operations or financial condition. For interim reporting purposes, the Company follows the same basic accounting policies and considers each interim period as an integral part of an annual period. Use of Estimates: The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Material estimates that are particularly susceptible to change are: the allowance for loan losses; the evaluation of investment securities for other than temporary impairment; fair value measurements of assets and liabilities; and income taxes. Estimates and assumptions are reviewed periodically and the effects of revisions are reflected in the consolidated financial statements in the period they are deemed necessary. While management uses its best judgment, actual results could differ from those estimates. Effect of Recently Adopted Accounting Standards ASU No. 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The amendments in this update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. Since these amendments only relate to the reclassification of the income tax effects of the Tax Cuts and Jobs Act, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. These amendments require that an entity disclose a description of the accounting policy for releasing income tax effects from accumulated other comprehensive income. These amendments are effective for fiscal years beginning after December 15, 2018, and interim periods within those years. Early adoption is permitted, including adoption in any interim period, for reporting periods for which financial statements have not yet been issued. These amendments should be applied either in the period of adoption or retrospectively to each period in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. Rather than adjusting income tax expense for the differences as the effect of the change in the U.S. federal corporate income tax rates are realized, the Company elected to adjust the difference (stranded tax effect) to retained earnings, consistent with the treatment of the deferred tax adjustment. The Company adopted this guidance during the first quarter of 2018, which resulted in a reclassification of $282,000 from accumulated other comprehensive income to retained earnings. The Company's policy is to release material stranded tax effects on a specific identification basis. ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. ASU 2017-12 permits hedge accounting for risk components in hedging relationships involving nonfinancial risk and interest rate risk. It also changes the guidance for designating fair value hedges of interest rate risk and for measuring the change in fair value of the hedged item in fair value hedges of interest rate risk. In addition to the amendments to the designation and measurement guidance for qualifying hedging relationships, the amendments in this ASU also align the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements. This ASU requires an entity to present the earnings effect of the hedging instrument in the same income statement line item in which the earnings effect of the hedged item is reported. For public entities, these amendments are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early application is permitted. The Company has analyzed its hedges and determined that the amendments in this ASU are currently not applicable to any hedge relationships in effect and therefore, no transition adjustment is necessary. The Company has adopted this ASU during the first quarter of 2018, and will apply the updates to hedging instruments on a go forward basis. ASU No. 2016-15 —Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. ASU 2016-15 adds or clarifies guidance on the classification of certain cash receipts and payments in the statement of cash flows. The Company adopted this guidance on January 1, 2018, and, as a result, reclassified $741,000 of return of capital proceeds from limited partnership investments from operating activities to investing activities for the six-month period ended June 30, 2017. ASU No. 2016-01 —Financial Instruments —Overall (Subtopic 825-10). The Company adopted this update effective January 1, 2018. The main provisions are to eliminate the available for sale classification of accounting for equity securities and to adjust the fair value disclosures for financial instruments carried at amortized costs such that the disclosed fair values represent an exit price as opposed to an entry price. The majority of the Company's equity investments qualify for the practical expedient allowed for equity securities without a readily determinable fair value, such that the Company has elected to carry these securities at cost adjusted for any observable transactions during the period, less any impairment. To date, no impairment has been recorded on the Company's investments in equity securities which do not have readily determinable fair values. The disclosure of fair value of the loan and interest-bearing deposit portfolios has been presented using an exit price methodology and had an immaterial impact on the Company's financial position. Revenue Recognition: On January 1, 2018, the Company adopted ASU No. 2014-09, "Revenue from Contracts with Customers" (Topic 606), which outlines a single comprehensive revenue recognition model for entities to follow in accounting for revenue from contracts with customers. The implementation of this new guidance did not have a material impact on the measurement or recognition of revenue and no cumulative effect adjustment was recorded to opening retained earnings. Results for reporting periods beginning after January 1, 2018, are presented under Topic 606, while prior period amounts were not adjusted and continue to be reported in accordance with the Company's historic accounting under Topic 605. The majority of the Company's revenue is generated from sources outside the scope of Topic 606. Interest and fees on loans, income from investment securities and mortgage banking revenue are all outside the scope of Topic 606 and are recorded in adherence with US GAAP. Service charges and fees on deposit accounts, credit card interchange insurance commission and fee income, as well as gains and losses on the sale of other assets including other real estate owned (“OREO”) are within the scope of Topic 606; however, the recognition of these revenue streams did not change significantly upon adoption of Topic 606. Descriptions of the Company's revenue generating activities that are within the scope of Topic 606 are described below. Service charges and fees on deposit accounts Service charges and fees on deposit accounts are primarily comprised of maintenance fees, service fees, stop payment and non-sufficient funds fees. The Company's performance obligation for service fees or other fees covering a period of time are generally satisfied, and related revenue recognized, over the period in which the service is provided. The Company's performance obligation for transactional-based fees are generally satisfied, and related revenue recognized, at a point in time. Insurance commission and fee income The Company earns commission income through production on behalf of insurance carriers and also earns fee income by providing complementary services such as collection of premiums. In most instances the Company considers the performance obligation to be complete at the time the service was rendered. Credit card interchange income The Company records credit card interchange income at a point in time as card transactions occur. The Company's performance obligation for these transactions is deemed to have occurred upon completion of each transaction. The amounts are included as a component of other income in the consolidated statements of income. Gain or loss on sale of other assets and OREO In the normal course of business, the Company recognizes the sale on other assets and OREO, along with any gain or loss, when control of the property transfers to the buyer through an executed contractual agreement. The transaction price is fixed, and on occasion the Company will finance a portion of the purchase price of the transferred asset. Effect of Newly Issued But Not Yet Effective Accounting Standards ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. ASU 2016-13 amends guidance on reporting credit losses for assets held at amortized cost basis and available for sale debt securities. For assets held at amortized cost basis, Topic 326 eliminates the probable initial recognition threshold in current GAAP and, instead, requires an entity to reflect its current estimate of all expected credit losses. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial assets to present the net amount expected to be collected. For available for sale debt securities, credit losses should be measured in a manner similar to current GAAP, however Topic 326 will require that credit losses be presented as an allowance rather than as a write-down. This ASU affects entities holding financial assets and net investment in leases that are not accounted for at fair value through net income. The amendments affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The Company anticipates a significant change in the processes and procedures to calculate the loan losses, including changes in assumptions and estimates to consider expected credit losses over the life of the loan versus the current accounting practice that utilizes the incurred loss model. The Company expects to recognize a one-time cumulative effect adjustment to the allowance for loan losses at the beginning of the first reporting period in which the new standard is effective, but cannot yet determine the magnitude of any such one-time adjustment or the overall impact on our results of operations, financial position or disclosures. However, the Company has begun developing processes and procedures to ensure we are fully compliant at the required adoption date. Among other things, the Company has initiated data gathering and assessment to support forecasting of asset quality, loan balances, and portfolio net charge-offs and developing asset quality forecast models in preparation for the implementation of this standard. For public business entities that are SEC filers, the amendments in the update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company continues to evaluate the impact of this ASU on the consolidated financial statements and disclosures. ASU No. 2016-02, Leases (Topic 842). ASU 2016-02 requires lessees to put most leases on their balance sheets but recognize expenses in the income statement in a manner similar to current accounting treatment. This ASU changes the guidance on sale-leaseback transactions, initial direct costs and lease execution costs, and, for lessors, modifies the classification criteria and the accounting for sales-type and direct financing leases. For public business entities, this ASU is effective for annual periods beginning after December 15, 2018, and interim periods therein. Entities are required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. The Company is evaluating the impact of this ASU on the consolidated financial statements and disclosures.

Earnings Per Share

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Earnings Per Share

Note 2 - Earnings Per Share



	Three months ended June 30,				Six months ended June 30,
(Dollars in thousands, except per share amounts)	2018		2017		2018		2017
Basic earnings per common share
Net income	$	12,702	$	3,823	$	26,109	$	11,070
Less: Dividends to preferred stock	808		1,115		1,923		2,230
Net income allocated to participating stockholders⁽¹⁾	40		102		921		369
Net income available to common stockholders	$	11,854	$	2,606	$	23,265	$	8,471
Weighted average common shares outstanding⁽²⁾	22,107,489		19,412,313		20,451,960		19,408,424
Basic earnings per common share	$	0.54	$	0.13	$	1.14	$	0.44
Diluted earnings per common share
Diluted earnings applicable to common stockholders⁽³⁾	$	11,876	$	2,612	$	23,318	$	8,497
Weighted average diluted common shares outstanding:
Weighted average common shares outstanding	22,107,489		19,412,313		20,451,960		19,408,424
Dilutive effect of common stock options	274,514		211,821		274,514		211,745
Weighted average diluted common shares outstanding	22,382,003		19,624,134		20,726,474		19,620,169
Diluted earnings per common share	$	0.53	$	0.13	$	1.13	$	0.43

____________________________

⁽¹⁾

Participating stockholders include those that hold certain share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents. Such shares or units are considered participating securities (i.e., nonvested restricted stock grants). Additionally, for periods prior to June, 30, 2018, Series D preferred stockholders were participating stockholders as those shares participated in dividends with common shares on a one-for-one basis. Net income allocated to participating stockholders does not include dividends paid to preferred stockholders.

⁽²⁾

Series D preferred stock was converted to common stock on a one-for-one basis on June 8, 2018, and as a result no dividend was paid on Series D preferred stock during the quarter ended June 30, 2018. The Series D quarterly weighted average outstanding shares are included in the quarterly weighted average common shares outstanding for the quarter ended June 30, 2018, resulting in no impact to the basic or diluted earnings per share calculation.


⁽³⁾	Net income allocated to common stockholders for basic and diluted earnings per share may differ under the two-class method as a result of adding common stock equivalents for options to dilutive shares outstanding, which alters the ratio used to allocate earnings to common stockholders and participating securities for the purposes of calculating diluted earnings per share.

Securities

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Securities

Note 3 - Securities

The following table is a summary of the amortized cost and estimated fair value, including gross unrealized gains and losses, of available for sale, held to maturity and securities carried at fair value through income for the dates indicated:



(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
June 30, 2018
Available for sale:
State and municipal securities	$	122,007	$	2,249	$	(286	)	$	123,970
Corporate bonds	3,000		89		—			3,089
Commercial mortgage-backed securities	7,580		—		(6		)	7,574
Residential mortgage-backed securities	165,659		213		(2,642		)	163,230
Residential collateralized mortgage obligations	214,801		101		(5,252		)	209,650
Total	$	513,047	$	2,652	$	(8,186	)	$	507,513
Held to maturity:
State and municipal securities	$	19,731	$	—	$	(31	)	$	19,700
Securities carried at fair value through income:
State and municipal securities⁽¹⁾	$	11,688	$	—	$	—		$	11,413

December 31, 2017
Available for sale:
State and municipal securities	$	125,909	$	4,104	$	(35	)	$	129,978
Corporate bonds	3,000		136		—			3,136
Residential mortgage-backed securities	105,132		492		(595		)	105,029
Residential collateralized mortgage obligations	168,645		262		(2,518		)	166,389
Total	$	402,686	$	4,994	$	(3,148	)	$	404,532
Held to maturity:
State and municipal securities	$	20,188	$	77	$	—		$	20,265
Securities carried at fair value through income:
State and municipal securities⁽¹⁾	$	11,918	$	—	$	—		$	12,033

____________________________


⁽¹⁾	Securities carried at fair value through income have no unrealized gains or losses at the balance sheet date as all changes in value have been recognized in the consolidated statements of income. See Note 5 - Fair Value of Financial Instruments for more information.

Securities with unrealized losses at June 30, 2018, and December 31, 2017, aggregated by investment category and those individual securities that have been in a continuous unrealized loss position under and over 12 months were as follows:



(Dollars in thousands)	Less than 12 Months					12 Months or More					Total
June 30, 2018	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Available for sale:
State and municipal securities	$	17,822	$	(246	)	$	1,184	$	(40	)	$	19,006	$	(286	)
Commercial mortgage-backed securities	7,580		(6		)	—		—			7,580		(6		)
Residential mortgage-backed securities	92,554		(1,777		)	18,224		(865		)	110,778		(2,642		)
Residential collateralized mortgage obligations	125,231		(2,406		)	56,194		(2,846		)	181,425		(5,252		)
Total	$	243,187	$	(4,435	)	$	75,602	$	(3,751	)	$	318,789	$	(8,186	)
Held to maturity:
State and municipal securities	$	14,480	$	(31	)	$	—	$	—		$	14,480	$	(31	)

December 31, 2017
Available for sale:
State and municipal securities	$	2,114	$	(5	)	$	1,210	$	(30	)	$	3,324	$	(35	)
Residential mortgage-backed securities	46,018		(198		)	20,233		(397		)	66,251		(595		)
Residential collateralized mortgage obligations	70,788		(641		)	60,622		(1,877		)	131,410		(2,518		)
Total	$	118,920	$	(844	)	$	82,065	$	(2,304	)	$	200,985	$	(3,148	)
Held to maturity:
State and municipal securities	$	—	$	—		$	—	$	—		$	—	$	—

At June 30, 2018, the Company had 127 individual securities that were in an unrealized loss position. The unrealized losses for each of the securities relate to market interest rate changes. The Company has considered the current market for the securities in an unrealized loss position, as well as the severity and duration of the impairments, and expects that the value will recover. Management does not intend to sell these investments until the fair value exceeds amortized cost and it is more likely than not that the Company will not be required to sell debt securities before the anticipated recovery of the amortized cost basis of the security; thus, the impairment is determined not to be other-than-temporary.

The following table presents the amortized cost and fair value of securities available for sale and held to maturity at June 30, 2018, grouped by contractual maturity. Mortgage-backed securities and collateralized mortgage obligations, which do not have contractual payments due at a single maturity date, are shown separately. Actual maturities for mortgage-backed securities and collateralized mortgage obligations will differ from contractual maturities as a result of prepayments made on the underlying mortgages.



(Dollars in thousands)	Held to maturity				Available for sale
June 30, 2018	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	—	$	—	$	2,721	$	2,729
Due after one year through five years	14,511		14,480		27,425		27,868
Due after five years through ten years	—		—		83,686		85,020
Due after ten years	5,220		5,220		11,175		11,442
Commercial mortgage-backed securities	—		—		7,580		7,574
Residential mortgage-backed securities	—		—		165,659		163,230
Residential collateralized mortgage obligations	—		—		214,801		209,650
Total	$	19,731	$	19,700	$	513,047	$	507,513

The following table presents carrying amounts of securities pledged as collateral for deposits and repurchase agreements for the period ends presented.



(Dollars in thousands)	June 30, 2018		December 31, 2017
Carrying value of securities pledged to secure public deposits	$	288,417	$	276,319
Carrying value of securities pledged to repurchase agreements	37,575		36,685

Loans

6 Months Ended

Jun. 30, 2018

Receivables [Abstract]

Loans

Note 4 - Loans

Loans consist of the following:



(Dollars in thousands)	June 30, 2018		December 31, 2017
Loans held for sale	$	62,072	$	65,343
Loans held for investment:
Loans secured by real estate:
Commercial real estate	$	1,091,581	$	1,083,275
Construction/land/land development	380,869		322,404
Residential real estate	563,016		570,583
Total real estate	2,035,466		1,976,262
Commercial and industrial	1,046,488		989,220
Mortgage warehouse lines of credit	270,494		255,044
Consumer	19,648		20,505
Total loans held for investment⁽¹⁾	3,372,096		3,241,031
Less: Allowance for loan losses	34,151		37,083
Net loans held for investment	$	3,337,945	$	3,203,948

____________________________


⁽¹⁾	Includes net deferred loan fees of $1.7 million and $1.0 million at June 30, 2018, and December 31, 2017, respectively.

Included in total loans held for investment as of June 30, 2018, were $20.1 million and $802,000 of commercial real estate loans and commercial and industrial loans, respectively, for which the fair value option was elected as of that date. At December 31, 2017, the Company held $21.0 million and $5.6 million of commercial real estate loans and commercial and industrial loans, respectively, at fair value. The Company mitigates the interest rate component of fair value risk on loans at fair value by entering into derivative interest rate contracts. See Note 5 - Fair Value of Financial Instruments for more information on loans for which the fair value option has been elected.

Credit quality indicators. As part of the Company's commitment to manage the credit quality of its loan portfolio, management annually updates and evaluates certain credit quality indicators, which include but are not limited to (i) weighted-average risk rating of the loan portfolio, (ii) net charge-offs, (iii) level of non-performing loans, (iv) level of classified loans, and (v) the general economic conditions in the states in which the Company operates. The Company maintains an internal risk rating system where ratings are assigned to individual loans based on assessed risk. Risk ratings are continually evaluated to ensure they are appropriate based on currently available information. These risk ratings are the primary indicator of credit quality for the loan portfolio.

The following is a summary description of the Company's internal risk ratings:



• Pass (1-6)	Loans within this risk rating are further categorized as follows:
Minimal risk (1)	Well-collateralized by cash equivalent instruments held by the Bank.
Moderate risk (2)	Borrowers with excellent asset quality and liquidity. Borrowers' capitalization and liquidity exceed industry norms. Borrowers in this category have significant levels of liquid assets and have a low level of leverage.
Better than average risk (3)	Borrowers with strong financial strength and excellent liquidity that consistently demonstrate strong operating performance. Borrowers in this category generally have a sizable net worth that can be converted into liquid assets within 12 months.
Average risk (4)	Borrowers with sound credit quality and financial performance, including liquidity. Borrowers are supported by sufficient cash flow coverage generated through operations across the full business cycle.
Marginally acceptable risk (5)	Loans generally meet minimum requirements for an acceptable loan in accordance with lending policy, but possess one or more attributes that cause the overall risk profile to be higher than the majority of newly approved loans.
Watch (6)	A passing loan with one or more factors that identify a potential weakness in the overall ability of the borrower to repay the loan. These weaknesses are generally mitigated by other factors that reduce the risk of delinquency or loss.
• Special Mention (7)	This grade is intended to be temporary and includes borrowers whose credit quality have deteriorated and is at risk of further decline.
• Substandard (8)	This grade includes "Substandard" loans, in accordance with regulatory guidelines. Substandard loans exhibit a well-defined weakness that jeopardizes debt repayment in accordance with contractual agreements, even though the loan may be performing. These obligations are characterized by the distinct possibility that a loss may be incurred if these weaknesses are not corrected and repayment may be dependent upon collateral liquidation or secondary source of repayment.
• Doubtful (9)	This grade includes "Doubtful" loans, in accordance with regulatory guidelines. Such loans are placed on nonaccrual status and repayment may be dependent upon collateral with no readily determinable valuation or valuations that are highly subjective in nature. Repayment for these loans is considered improbable based on currently existing facts and circumstances.
• Loss (0)	This grade includes "Loss" loans in accordance with regulatory guidelines. Loss loans are charged-off or written-down when repayment is not expected.

The recorded investment in loans by credit quality indicator at June 30, 2018 and December 31, 2017, excluding loans held for sale, were as follows:



	June 30, 2018
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Loss		Total
Loans secured by real estate:
Commercial real estate	$	1,065,396	$	8,518	$	17,667	$	—	$	—	$	1,091,581
Construction/land/land development	377,516		162		3,191		—		—		380,869
Residential real estate	551,468		31		11,517		—		—		563,016
Total real estate	1,994,380		8,711		32,375		—		—		2,035,466
Commercial and industrial	981,356		11,267		53,865		—		—		1,046,488
Mortgage warehouse lines of credit	270,494		—		—		—		—		270,494
Consumer	19,308		—		340		—		—		19,648
Total loans held for investment	$	3,265,538	$	19,978	$	86,580	$	—	$	—	$	3,372,096



	December 31, 2017
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Loss		Total
Loans secured by real estate:
Commercial real estate	$	1,055,911	$	7,798	$	19,566	$	—	$	—	$	1,083,275
Construction/land/land development	318,488		170		3,746		—		—		322,404
Residential real estate	560,945		778		8,860		—		—		570,583
Total real estate	1,935,344		8,746		32,172		—		—		1,976,262
Commercial and industrial	915,111		15,332		58,777		—		—		989,220
Mortgage warehouse lines of credit	255,044		—		—		—		—		255,044
Consumer	20,223		—		279		3		—		20,505
Total loans held for investment	$	3,125,722	$	24,078	$	91,228	$	3	$	—	$	3,241,031

The following tables present the Company’s loan portfolio aging analysis at the dates indicated:



	June 30, 2018
(Dollars in thousands)	30-59 Days past due		60-89 Days past due		Loans past due 90 days or more		Total past due		Current loans		Total loans receivable		Accruing loans 90 or more days past due
Loans secured by real estate:
Commercial real estate	$	1,121	$	25	$	826	$	1,972	$	1,089,609	$	1,091,581	$	—
Construction/land/land development	1,404		—		709		2,113		378,756		380,869		—
Residential real estate	1,400		1,574		3,359		6,333		556,683		563,016		—
Total real estate	3,925		1,599		4,894		10,418		2,025,048		2,035,466		—
Commercial and industrial	2,088		20		138		2,246		1,044,242		1,046,488		—
Mortgage warehouse lines of credit	—		—		—		—		270,494		270,494		—
Consumer	396		34		18		448		19,200		19,648		—
Total loans held for investment	$	6,409	$	1,653	$	5,050	$	13,112	$	3,358,984	$	3,372,096	$	—



	December 31, 2017
(Dollars in thousands)	30-59 Days past due		60-89 Days past due		Loans past due 90 days or more		Total past due		Current loans		Total loans receivable		Accruing loans 90 or more days past due
Loans secured by real estate:
Commercial real estate	$	8,427	$	2,791	$	1,150	$	12,368	$	1,070,907	$	1,083,275	$	—
Construction/land/land development	1,488		172		464		2,124		320,280		322,404		—
Residential real estate	2,630		347		3,910		6,887		563,696		570,583		—
Total real estate	12,545		3,310		5,524		21,379		1,954,883		1,976,262		—
Commercial and industrial	1,517		9,922		8,074		19,513		969,707		989,220		—
Mortgage warehouse lines of credit	—		—		—		—		255,044		255,044		—
Consumer	178		128		74		380		20,125		20,505		—
Total loans held for investment	$	14,240	$	13,360	$	13,672	$	41,272	$	3,199,759	$	3,241,031	$	—

The following tables detail activity in the allowance for loan losses by portfolio segment. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories.



	Three months ended June 30, 2018
(Dollars in thousands)	Beginning balance		Charge-offs		Recoveries		Provision (Benefit)⁽¹⁾			Ending balance
Loans secured by real estate:
Commercial real estate	$	10,144	$	—	$	89	$	(465	)	$	9,768
Construction/land/land development	2,707		—		—		446			3,153
Residential real estate	5,471		—		30		(33		)	5,468
Commercial and industrial	15,337		766		546		182			15,299
Mortgage warehouse lines of credit	158		—		—		45			203
Consumer	315		28		8		(35		)	260
Total	$	34,132	$	794	$	673	$	140		$	34,151

____________________________


⁽¹⁾	The $311,000 provision for credit losses on the consolidated statements of income includes a $140,000 net loan loss provision and a $171,000 provision for off-balance sheet commitments for the three months ended June 30, 2018.



	Six months ended June 30, 2018
(Dollars in thousands)	Beginning balance		Charge-offs		Recoveries		Provision (Benefit)⁽¹⁾			Ending balance
Loans secured by real estate:
Commercial real estate	$	8,998	$	9	$	216	$	563		$	9,768
Construction/land/land development	2,950		—		1		202			3,153
Residential real estate	5,807		9		49		(379		)	5,468
Commercial and industrial	18,831		2,469		720		(1,783		)	15,299
Mortgage warehouse lines of credit	214		—		—		(11		)	203
Consumer	283		45		32		(10		)	260
Total	$	37,083	$	2,532	$	1,018	$	(1,418	)	$	34,151

____________________________


⁽¹⁾	The $1.2 million benefit for credit losses on the consolidated statements of income includes a $1.4 million net loan loss benefit and a $205,000 provision for off-balance sheet commitments for the six months ended June 30, 2018.



	Three months ended June 30, 2017
(Dollars in thousands)	Beginning balance		Charge-offs		Recoveries		Provision (Benefit) ⁽¹⁾			Ending balance
Loans secured by real estate:
Commercial real estate	$	8,716	$	—	$	74	$	411		$	9,201
Construction/land/land development	2,739		—		1		346			3,086
Residential real estate	5,883		7		40		1,447			7,363
Commercial and industrial	33,805		12,437		235		(256		)	21,347
Mortgage warehouse lines of credit	128		—		—		175			303
Consumer	344		109		20		79			334
Total	$	51,615	$	12,553	$	370	$	2,202		$	41,634

____________________________


⁽¹⁾	The $2.0 million provision for credit losses on the consolidated statements of income includes a $2.2 million net loan loss provision offset by a $249,000 release of provision for off-balance sheet commitments for the three months ended June 30, 2017.



	Six months ended June 30, 2017
(Dollars in thousands)	Beginning balance		Charge-offs		Recoveries		Provision⁽¹⁾		Ending balance
Loans secured by real estate:
Commercial real estate	$	8,718	$	—	$	76	$	407	$	9,201
Construction/land/land development	2,805		—		3		278		3,086
Residential real estate	5,003		20		77		2,303		7,363
Commercial and industrial	33,590		13,149		365		541		21,347
Mortgage warehouse lines of credit	139		—		—		164		303
Consumer	276		233		45		246		334
Total	$	50,531	$	13,402	$	566	$	3,939	$	41,634

____________________________


⁽¹⁾	The $4.8 million provision for credit losses on the consolidated statements of income includes a $3.9 million net loan loss provision and an $829,000 provision for off-balance sheet commitments for the six months ended June 30, 2017.

The following tables present the balance of loans receivable by method of impairment evaluation at the dates indicated:



	June 30, 2018
(Dollars in thousands)	Period end allowance allocated to loans individually evaluated for impairment		Period end allowance allocated to loans collectively evaluated for impairment		Period end loan balance individually evaluated for impairment		Period end loan balance collectively evaluated for impairment ⁽¹⁾
Loans secured by real estate:
Commercial real estate	$	1,183	$	8,585	$	10,040	$	1,061,471
Construction/land/land development	4		3,149		1,315		379,554
Residential real estate	115		5,353		7,994		555,022
Commercial and industrial	1,550		13,749		12,783		1,032,903
Mortgage warehouse lines of credit	—		203		—		270,494
Consumer	49		211		275		19,373
Total	$	2,901	$	31,250	$	32,407	$	3,318,817

____________________________


⁽¹⁾	Excludes $20.1 million and $802,000 of commercial real estate loans and commercial and industrial loans, respectively, at fair value, which are not evaluated for impairment due to the fair value option election. See Note 5 - Fair Value of Financial Instruments for more information.



	December 31, 2017
(Dollars in thousands)	Period end allowance allocated to loans individually evaluated for impairment		Period end allowance allocated to loans collectively evaluated for impairment		Period end loan balance individually evaluated for impairment		Period end loan balance collectively evaluated for impairment ⁽¹⁾
Loans secured by real estate:
Commercial real estate	$	312	$	8,686	$	4,945	$	1,057,330
Construction/land/land development	4		2,946		1,963		320,441
Residential real estate	72		5,735		7,915		562,668
Commercial and industrial	4,356		14,475		24,598		959,011
Mortgage warehouse lines of credit	—		214		—		255,044
Consumer	63		220		237		20,268
Total	$	4,807	$	32,276	$	39,658	$	3,174,762

____________________________


⁽¹⁾	Excludes $21.0 million and $5.6 million of commercial real estate loans and commercial and industrial loans, respectively, at fair value, which are not evaluated for impairment due to the fair value option election. See Note 5 - Fair Value of Financial Instruments for more information.

The following tables present impaired loans at the dates indicated. No mortgage warehouse lines of credit were impaired at either June 30, 2018, or December 31, 2017.



	June 30, 2018
(Dollars in thousands)	Unpaid contractual principal balance		Recorded investment with no allowance		Recorded investment with an allowance		Total recorded investment		Allocation of allowance for loan losses
Loans secured by real estate:
Commercial real estate	$	10,968	$	2,477	$	7,563	$	10,040	$	1,183
Construction/land/land development	1,655		1,168		147		1,315		4
Residential real estate	10,173		7,209		785		7,994		115
Total real estate	22,796		10,854		8,495		19,349		1,302
Commercial and industrial	13,353		5,095		7,688		12,783		1,550
Consumer	293		185		90		275		49
Total impaired loans	$	36,442	$	16,134	$	16,273	$	32,407	$	2,901



	December 31, 2017
(Dollars in thousands)	Unpaid contractual principal balance		Recorded investment with no allowance		Recorded investment with an allowance		Total recorded investment		Allocation of allowance for loan losses
Loans secured by real estate:
Commercial real estate	$	6,047	$	1,782	$	3,163	$	4,945	$	312
Construction/land/land development	2,268		1,813		150		1,963		4
Residential real estate	10,024		6,750		1,165		7,915		72
Total real estate	18,339		10,345		4,478		14,823		388
Commercial and industrial	25,212		6,161		18,437		24,598		4,356
Consumer	259		141		96		237		63
Total impaired loans	$	43,810	$	16,647	$	23,011	$	39,658	$	4,807

The average recorded investment and interest recognized on impaired loans while classified as impaired for the three and six months ended June 30, 2018 and 2017, were as follows:



	Three months ended June 30,
	2018				2017
(Dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Loans secured by real estate:
Commercial real estate	$	10,093	$	15	$	7,869	$	39
Construction/land/land development	1,368		2		858		2
Residential real estate	7,543		11		9,784		17
Total real estate	19,004		28		18,511		58
Commercial and industrial	13,198		56		36,952		94
Consumer	274		1		206		1
Total impaired loans	$	32,476	$	85	$	55,669	$	153



	Six months ended June 30,
	2018				2017
(Dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Loans secured by real estate:
Commercial real estate	$	9,942	$	43	$	5,918	$	61
Construction/land/land development	1,650		11		871		5
Residential real estate	7,619		36		9,715		34
Total real estate	19,211		90		16,504		100
Commercial and industrial	15,792		105		33,267		107
Consumer	266		3		205		3
Total impaired loans	$	35,269	$	198	$	49,976	$	210

All interest accrued but not received for loans placed on nonaccrual status is reversed against interest income. Subsequent receipts on nonaccrual loans are recorded as a reduction of principal, and interest income is recorded only after principal recovery is reasonably assured. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Troubled debt restructurings ("TDRs") are included in certain loan categories within impaired loans. At June 30, 2018, the Company has committed to advance $631,000 in connection with impaired loans.

Non-performing (nonaccrual) loans held for investment were as follows:



(Dollars in thousands)	June 30, 2018		December 31, 2017
Loans secured by real estate:
Commercial real estate	$	8,712	$	1,745
Construction/land/land development	1,197		1,097
Residential real estate	7,713		7,166
Total real estate	17,622		10,008
Commercial and industrial	8,831		13,512
Consumer	340		282
Total nonaccrual loans	$	26,793	$	23,802

For the six months ended June 30, 2018 and 2017, gross interest income which would have been recorded had the nonaccruing loans been current in accordance with their original terms was $651,000 and $1.8 million, respectively. No interest income was recorded on these loans while they were considered nonaccrual during the six months ended June 30, 2018 or 2017.

The Company elects the fair value option for recording residential mortgage loans held for sale, as well as certain commercial real estate and commercial and industrial loans, in accordance with US GAAP. The Company had $1.9 million of nonaccrual mortgage loans held for sale that were recorded using the fair value option election at June 30, 2018, and none at December 31, 2017, respectively. There were no nonaccrual loans held for investment that were recorded using the fair value option election at June 30, 2018, or December 31, 2017.

The following is a summary of loans classified as TDRs.



(Dollars in thousands)	June 30, 2018		December 31, 2017
TDRs
Nonaccrual TDRs	$	1,984	$	2,622
Performing TDRs	5,839		14,234
Total	$	7,823	$	16,856

The following table presents the pre and post-modification balance of TDR modifications that occurred during the three and six months ended June 30, 2018, and June 30, 2017, and the ending balances by concession type as of each period presented.



	At and for the three months ended June 30, 2018
(Dollars in thousands)	Number of loans restructured	Pre-modification recorded balance		Term Concessions		Interest Rate Concessions		Combination		Total Modifications
Loans secured by real estate:
Residential real estate	4	$	92	$	51	$	21	$	17	$	89
Consumer	1	33		—		—		32		32
Total	5	$	125	$	51	$	21	$	49	$	121



	At and for the six months ended June 30, 2018
(Dollars in thousands)	Number of loans restructured	Pre-modification recorded balance		Term Concessions		Interest Rate Concessions		Combination		Total Modifications
Loans secured by real estate:
Residential real estate	5	$	187	$	51	$	21	$	106	$	178
Consumer	1	33		—		—		32		32
Total	6	$	220	$	51	$	21	$	138	$	210



	At and for the three months ended June 30, 2017
(Dollars in thousands)	Number of loans restructured	Pre-modification recorded balance		Term Concessions		Interest Rate Concessions		Combination		Total Modifications
Loans secured by real estate:
Commercial real estate	3	$	2,643	$	2,643	$	—	$	—	$	2,643
Residential real estate	2	41		41		—		—		41
Total real estate	5	2,684		2,684		—		—		2,684
Commercial and industrial	6	8,179		7,661		—		—		7,661
Total	11	$	10,863	$	10,345	$	—	$	—	$	10,345



	At and for the six months ended June 30, 2017
(Dollars in thousands)	Number of loans restructured	Pre-modification recorded balance		Term Concessions		Interest Rate Concessions		Combination		Total Modifications
Loans secured by real estate:
Commercial real estate	3	$	2,643	$	2,643	$	—	$	—	$	2,643
Residential real estate	2	41		41		—		—		41
Total real estate	5	2,684		2,684		—		—		2,684
Commercial and industrial	6	8,179		7,661		—		—		7,661
Total	11	$	10,863	$	10,345	$	—	$	—	$	10,345

During the six months ended June 30, 2018, two loans with a combined outstanding principal balance of $68,000 defaulted after having been modified as a TDR within the previous 12 months. During the six months ended June 30, 2017, there were no payment defaults for loans restructured as TDR's within the previous 12 months. A payment default is defined as a loan that was 90 or more days past due. The modifications made during the three and six months ended June 30, 2018, did not significantly impact the Company's determination of the allowance for loan losses. On an ongoing basis, the Company monitors the performance of the modified loans to their restructured terms. In the event of a subsequent default, the allowance for loan losses continues to be reassessed on the basis of an individual evaluation of the loan.

- Definition

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

+ References + Details

Fair Value of Financial Instruments

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Note 5 - Fair Value of Financial Instruments

Fair value is the exchange price that is expected to be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Certain assets and liabilities are recorded in the Company's financial statements at fair value. Some are recorded on a recurring basis and some on a non-recurring basis.

The Company utilizes fair value measurement to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The determination of fair values of financial instruments often requires the use of estimates. In cases where quoted market values in an active market are not available, the Company utilizes valuation techniques that are consistent with the market approach, the income approach and/or the cost approach to estimate the fair values of its financial instruments. Such valuation techniques are consistently applied.

A hierarchy for fair value has been established which categorizes the valuation techniques into three levels used to measure fair value. The three levels are as follows:

Level 1 - Fair value is based on unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2 - Fair value is based on significant other observable inputs which are generally determined based on a single price for each financial instrument provided to the Company by an unrelated third-party pricing service and is based on one or more of the following:

•Quoted prices for similar, but not identical, assets or liabilities in active markets;

•Quoted prices for identical or similar assets or liabilities in markets that are not active;


•	Inputs other than quoted prices that are observable, such as interest rate and yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates;

•Other inputs derived from or corroborated by observable market inputs.

Level 3 - Prices or valuation techniques that require inputs that are both significant and unobservable in the market. These instruments are valued using the best information available, some of which is internally developed, and reflects the Company's own assumptions about the risk premiums that market participants would generally require and the assumptions they would use.

There were no transfers between fair value reporting levels for any period presented.

Fair Values of Assets and Liabilities Recorded on a Recurring Basis

The following tables summarize financial assets and financial liabilities recorded at fair value on a recurring basis at June 30, 2018, and December 31, 2017, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value. There were no changes in the valuation techniques during either period.



	June 30, 2018
(Dollars in thousands)	Level 1		Level 2			Level 3		Total
State and municipal securities	$	—	$	84,209		$	39,761	$	123,970
Corporate bonds	—		3,089			—		3,089
Commercial mortgage-backed securities	—		7,574			—		7,574
Residential mortgage-backed securities	—		163,230			—		163,230
Residential collateralized mortgage obligations	—		209,650			—		209,650
Securities available for sale	—		467,752			39,761		507,513
Securities carried at fair value through income	—		—			11,413		11,413
Loans held for sale	—		32,587			—		32,587
Loans at fair value	—		—			20,872		20,872
Mortgage servicing rights	—		—			25,738		25,738
Other assets - derivatives	—		3,034			—		3,034
Total recurring fair value measurements - assets	$	—	$	503,373		$	97,784	$	601,157

Other liabilities - derivatives	$	—	$	(1,983	)	$	—	$	(1,983	)
Total recurring fair value measurements - liabilities	$	—	$	(1,983	)	$	—	$	(1,983	)



	December 31, 2017
(Dollars in thousands)	Level 1		Level 2			Level 3		Total
State and municipal securities	$	—	$	87,963		$	42,015	$	129,978
Corporate bonds	—		3,136			—		3,136
Residential mortgage-backed securities	—		105,029			—		105,029
Residential collateralized mortgage obligations	—		166,389			—		166,389
Securities available for sale	—		362,517			42,015		404,532
Securities carried at fair value through income	—		—			12,033		12,033
Loans held for sale	—		32,768			—		32,768
Loans at fair value	—		—			26,611		26,611
Mortgage servicing rights	—		—			24,182		24,182
Other assets - derivatives	—		3,146			—		3,146
Total recurring fair value measurements - assets	$	—	$	398,431		$	104,841	$	503,272

Other liabilities - derivatives	$	—	$	(3,320	)	$	—	$	(3,320	)
Total recurring fair value measurements - liabilities	$	—	$	(3,320	)	$	—	$	(3,320	)

The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the six months ended June 30, 2018 and 2017, are summarized as follows:



(Dollars in thousands)	Loans at Fair Value			MSRs			Securities Available for Sale			Securities at FV Through Income
Balance at January 1, 2018	$	26,611		$	24,182		$	42,015		$	12,033
Gain (loss) recognized in earnings:
Mortgage banking revenue	—			563			—			—
Other noninterest income	(387		)	—			—			(390		)
Gain (loss) recognized in AOCI	—			—			(858		)	—
Purchases, issuances, sales and settlements:
Originations	—			993			—			—
Purchases	—			—			259			—
Settlements	(5,352		)	—			(1,655		)	(230		)
Balance at June 30, 2018	$	20,872		$	25,738		$	39,761		$	11,413

Balance at January 1, 2017	$	33,693		$	29,385		$	43,858		$	12,511
Gain (loss) recognized in earnings:
Mortgage banking revenue	—			(2,969		)	—			—
Other noninterest income	(175		)	—			—			28
Gain (loss) recognized in AOCI	—			—			(55		)	—
Purchases, issuances, sales, and settlements:
Originations	—			1,436			—			—
Purchases	—			—			275			—
Sales	(2,516		)	—			—			—
Settlements	(3,194		)	—			(1,637		)	(220		)
Balance at June 30, 2017	$	27,808		$	27,852		$	42,441		$	12,319

The following methodologies were used to measure the fair value of financial assets and liabilities valued on a recurring basis:

Securities Available for Sale

Securities classified as available for sale are reported at fair value utilizing Level 2 or Level 3 inputs. For Level 2 securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, market consensus prepayment speeds, credit information and the security's terms and conditions, among other things. In order to ensure the fair values are consistent with ASC 820, Fair Value Measurements and Disclosures, the Company periodically checks the fair value by comparing them to another pricing source, such as Bloomberg. The third -party pricing service is subject to an annual review of internal controls (SSAE 16), which is made available to the Company. In certain cases where Level 2 inputs are not available, securities are classified within Level 3 of the hierarchy.

Mortgage Servicing Rights ("MSR")

The carrying amounts of the MSRs equal fair value and are valued on a discounted cash flow valuation technique.

The significant assumptions used to value MSRs were as follows:

In recent years, there have been significant market-driven fluctuations in the assumptions listed above. These fluctuations can be rapid and may continue to be significant. Therefore, estimating these assumptions within ranges that market participants would use in determining the fair value of MSRs requires significant management judgment.

Derivatives

Fair values for interest rate swap agreements are based upon the amounts that would be required to settle the contracts. Fair values for derivative loan commitments and forward loan sale commitments are based on fair values of the underlying mortgage loans and the probability of such commitments being exercised. Significant management judgment and estimation is required in determining these fair value measurements.

Fair Values of Assets Recorded on a Recurring Basis for which the Fair Value Option has been Elected

Certain assets are measured at fair value on a recurring basis due to the Company's election to adopt fair value accounting treatment for those assets. This election allows for a more effective offset of the changes in fair values of the assets and the derivative instruments used to economically hedge them without the burden of complying with the requirements for hedge accounting under ASC 815, Derivatives and Hedging. For assets for which the fair value has been elected, the earned current contractual interest payment is recognized in interest income, loan origination costs and fees on fair value option loans are recognized in earnings as incurred and not deferred. At June 30, 2018, and December 31, 2017, there were no gains or losses recorded attributable to changes in instrument-specific credit risk. The following tables summarize the difference between the fair value and the unpaid principal balance for financial instruments for which the fair value option has been elected:



	June 30, 2018
(Dollars in thousands)	Aggregate Fair Value		Aggregate Unpaid Principal Balance		Difference
Loans held for sale⁽¹⁾	$	32,587	$	32,087	$	500
Commercial and industrial loans held for investment⁽²⁾	802		802		—
Commercial real estate loans held for investment⁽²⁾	20,070		19,888		182
Securities carried at fair value through income	11,413		11,688		(275		)
Total	$	64,872	$	64,465	$	407

____________________________


⁽¹⁾	$1.9 million of loans were designated as nonaccrual or past due 90 days or more at June 30, 2018. Of this balance, the Company had guarantees receivable from U.S. Government agencies totaling $1.7 million.


⁽²⁾	There were no commercial and industrial loans or commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or past due 90 days or more at June 30, 2018.



	December 31, 2017
(Dollars in thousands)	Aggregate Fair Value		Aggregate Unpaid Principal Balance		Difference
Loans held for sale⁽¹⁾	$	32,768	$	32,216	$	552
Commercial and industrial loans held for investment⁽²⁾	5,611		5,591		20
Commercial real estate loans held for investment⁽²⁾	21,000		20,451		549
Securities carried at fair value through income	12,033		11,918		115
Total	$	71,412	$	70,176	$	1,236

____________________________


⁽¹⁾	$2.4 million of loans were past due 90 days or more at December 31, 2017. Of this balance, the Company had guarantees receivable from U.S. government agencies totaling $1.8 million.


⁽²⁾	There were no commercial and industrial loans or commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or past due 90 days or more at December 31, 2017.

Changes in the fair value of assets for which the Company elected the fair value option are classified in the income statement line items reflected in the following table



	Three months ended June 30,						Six months ended June 30,
(Dollars in thousands)	2018			2017			2018			2017
Changes in fair value included in noninterest income:
Mortgage banking revenue	$	271		$	(70	)	$	(52	)	$	21
Other income:
Loans at fair value held for investment	(92		)	(9		)	$	(387	)	(175		)
Securities carried at fair value through income	(80		)	125			(390		)	28
Total impact on other income	(172		)	116			(777		)	(147		)
Total fair value option impact on noninterest income⁽¹⁾	$	99		$	46		$	(829	)	$	(126	)

____________________________


⁽¹⁾	The fair value option impact on noninterest income is offset by the derivative gain/loss recognized in noninterest income. Please see Note 6 - Mortgage Banking for more detail.

The following methodologies were used to measure the fair value of financial assets valued on a recurring basis for which the fair value option was elected:

Securities at Fair Value through Income

Securities carried at fair value through income are valued using a discounted cash flow with a credit spread applied to each instrument based on the credit worthiness of each issuer. Credit spreads ranged from 126 to 227 basis points at both June 30, 2018, and December 31, 2017. The Company believes the fair value approximates an exit price.

Loans Held for Sale

Fair values for loans held for sale are established using anticipated sale prices for loans allocated to a sale commitment, and those unallocated to a commitment are valued based on the interest rate and term for similar loans allocated. The Company believes the fair value approximates an exit price.

Loans Held for Investment

For loans held for investment for which the fair value option has been elected, fair values are calculated using a discounted cash flow model with inputs including observable interest rate curves and unobservable credit adjustment spreads based on credit risk inherent in the loan. Credit spreads ranged from 290 to 413 basis points at June 30, 2018, and ranged from 283 to 413 basis points at December 31, 2017. The Company believes the fair value approximates an exit price.

Fair Value of Assets Recorded on a Nonrecurring Basis

Equity Securities Without Readily Determinable Fair Values

Equity securities without readily determinable fair values totaled $25.0 million and are shown on the face of the balance sheet. The majority of the Company's equity investments qualify for the practical expedient allowed for equity securities without a readily determinable fair value, such that the Company has elected to carry these securities at cost adjusted for any observable transactions during the period, less any impairment. To date, no impairment has been recorded on the Company's investments in equity securities which do not have readily determinable fair values.

Government National Mortgage Association Repurchase Asset

The Company recorded $29.5 million and $32.6 million, respectively, at June 30, 2018, and December 31, 2017, for Government National Mortgage Association ("GNMA") repurchase assets included in mortgage loans held for sale on the balance sheet. The assets are valued at the lower of cost or market and, where market is lower than cost, valued using anticipated sale prices for loans allocated to a sale commitment, and those unallocated to a commitment are valued based on the interest rate and term for similar loans allocated. The Company believes the fair value approximates an exit price. Please see Note 6 - Mortgage Banking for more information on the GNMA repurchase asset.

Collateral Dependent Impaired Loans

Loans for which it is probable that the Company will not collect all principal and interest due according to contractual terms are measured for impairment. Allowable methods for determining the amount of impairment include estimating fair value using the fair value of the collateral for collateral-dependent loans. If the impaired loan is identified as collateral-dependent, the fair value method of measuring the amount of impairment is utilized. This method requires obtaining a current independent appraisal of the collateral and applying a discount factor to the value. Impaired loans that are collateral-dependent are classified within Level 3 of the fair value hierarchy when impairment is determined using the fair value method. The fair value of impaired loans with specific allocated losses was $13.4 million and $18.2 million at June 30, 2018, and December 31, 2017, respectively.

Non-Financial Assets

Foreclosed assets held for sale are the only non-financial assets valued on a non-recurring basis which are initially recorded by the Company at fair value, less estimated costs to sell. At foreclosure, if the fair value, less estimated costs to sell, of the real estate acquired is less than the Company’s recorded investment in the related loan, a write-down is recognized through a charge to the allowance for loan losses. Additionally, valuations are periodically performed by management and any subsequent reduction in value is recognized by a charge to income. The carrying value and fair value of foreclosed assets held for sale is estimated using Level 3 inputs based on observable market data and was $654,000 and $499,000 at June 30, 2018, and December 31, 2017, respectively. At June 30, 2018, the Company had $294,000 in residential mortgage loans in the process of foreclosure.

Fair Values of Financial Instruments Not Recorded at Fair Value

The carrying value and estimated fair values of financial instruments not recorded at fair value are as follows:



(Dollars in thousands)	June 30, 2018				December 31, 2017
Financial assets:	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Level 1 inputs:
Cash and cash equivalents	$	169,574	$	169,574	$	187,187	$	187,187
Level 2 inputs:
Securities held to maturity	19,731		19,700		20,188		20,265
Non-marketable equity securities held in other financial institutions	25,005		25,005		22,967		22,967
Accrued interest and loan fees receivable	13,016		13,016		10,719		10,719
Level 3 inputs:
Loans held for investment, net⁽¹⁾	3,317,073		3,219,408		3,177,337		3,238,872
Financial liabilities:
Level 2 inputs:
Deposits	3,672,097		3,429,356		3,512,014		3,352,213
FHLB advances and other borrowings	139,092		140,150		144,357		145,330
Junior subordinated debentures	9,631		10,724		9,619		14,132
Accrued interest payable	2,026		2,026		2,424		2,424

____________________________


⁽¹⁾	The Loans held for investment, net does not include loans for which the fair value option had been elected at June 30, 2018, or December 31, 2017, respectively, as these loans are carried at fair value on a recurring basis.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Mortgage Banking

6 Months Ended

Jun. 30, 2018

Mortgage Banking [Abstract]

Mortgage Banking

Note 6 - Mortgage Banking

The following table presents the Company's revenue from mortgage banking operations:



(Dollars in thousands)	For the three months ended						For the six months ended
Mortgage banking revenue	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
Origination	$	242		$	378		$	452		$	605
Gain on sale of loans held for sale	1,336			3,126			3,360			5,420
Servicing	1,774			2,002			3,611			4,109
Total gross mortgage revenue	3,352			5,506			7,423			10,134
Mortgage derivatives gain (loss)	311			184			(228		)	690
MSR change due to payoffs and paydowns	(1,047		)	(1,138		)	(1,831		)	(2,090		)
MSR and hedge fair value adjustment	(299		)	161			(678		)	71
Gain (loss) on MSR sale⁽¹⁾	—			—			25			—
Mortgage banking revenue	$	2,317		$	4,713		$	4,711		$	8,805

___________________________


⁽¹⁾	Amount shown during the six months ended June 30, 2018, reflects final settlement on a loan servicing portfolio sold during the three months ended December 31, 2017.

Management uses mortgage-backed securities to mitigate the impact of changes in fair value of MSRs. See Note 7 - Derivative Financial Instruments for further information.

Mortgage Servicing Rights

Activity in MSRs was as follows:



	Three months ended June 30,						Six months ended June 30,
(Dollars in thousands)	2018			2017			2018		2017
Balance at beginning of period	$	25,999		$	28,882		$	24,182	$	29,385
Origination of servicing rights	450			808			993		1,436
Change in fair value, including amortization	(711		)	(1,838		)	563		(2,969		)
Balance at end of period	$	25,738		$	27,852		$	25,738	$	27,852

The Company receives annual servicing fee income approximating 0.28% of the outstanding balance of the underlying loans. In connection with the Company's activities as a servicer of mortgage loans, the investors and the securitization trusts have no recourse to the Company's assets for failure of debtors to pay when due.

The Company is potentially subject to losses in its loan servicing portfolio due to loan foreclosures. The Company has obligations to either repurchase the outstanding principal balance of a loan or make the purchaser whole for the economic benefits of a loan if it is determined that the loan sold was in violation of representations or warranties made by it at the time of the sale, herein referred to as mortgage loan servicing putback expenses. Such representations and warranties typically include those made regarding loans that had missing or insufficient file documentation and/or loans obtained through fraud by borrowers or other third parties. Putback requests may be made until the loan is paid in full. When a putback request is received, the Company evaluates the request and takes appropriate actions based on the nature of the request. The Company is required by Federal National Mortgage Association and Federal Home Loan Mortgage Corporation to provide a response to putback requests within 60 days of the date of receipt.

The total mortgage loan servicing putback expenses incurred by the Company were $0 and $33 for the three months ended June 30, 2018 and 2017, and $0 and $52 for the six months ended June 30, 2018 and 2017, respectively. At June 30, 2018, and December 31, 2017, the reserve for mortgage loan servicing putback expenses totaled $196,000 and $254,000, respectively. There is inherent uncertainty in reasonably estimating the requirement for reserves against future mortgage loan servicing putback expenses. Future putback expenses are dependent on many subjective factors, including the review procedures of the purchasers and the potential refinance activity on loans sold with servicing released and the subsequent consequences under the representations and warranties.

GNMA optional repurchase programs allow financial institutions to buy back individual delinquent mortgage loans that meet certain criteria from the securitized loan pool for which the institution provides servicing. At the servicer's option and without GNMA's prior authorization, the servicer may repurchase such a delinquent loan for an amount equal to 100 percent of the remaining principal balance of the loan. This buy-back option is considered a conditional option until the delinquency criteria are met, at which time the option becomes unconditional. When the Company is deemed to have regained effective control over these loans under the unconditional buy-back option, the loans can no longer be reported as sold and must be brought back onto the balance sheet as mortgage loans held for sale, regardless of whether the Company intends to exercise the buy-back option. These loans are reported as held for sale at lower of cost or market with the offsetting liability being reported in FHLB advances and other borrowings. The balance included in mortgage loans held for sale and FHLB advances and other borrowings at June 30, 2018, and December 31, 2017, was $29.5 million and $32.6 million, respectively.

Derivative Financial Instruments

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Note 7 - Derivative Financial Instruments

Risk Management Objective of Using Derivatives

The Company enters into derivative financial instruments to manage risks related to differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments, as well as to manage changes in fair values of some assets which are marked at fair value through the income statement on a recurring basis.

Cash Flow Hedges of Interest Rate Risk

The Company is a party in interest rate swap agreements under which the Company receives interest at a variable rate and pays at a fixed rate. This derivative instrument represented by this swap agreement is designated as a cash flow hedge of the Company's forecasted variable cash flows under a variable-rate term borrowing agreement. During the term of the swap agreement, the effective portion of changes in the fair value of the derivative instrument are recorded in accumulated other comprehensive income and subsequently reclassified into earnings in the periods that the hedged forecasted variable-rate interest payments affected earnings. There was no ineffective portion of the change in fair value of the derivative recognized directly in earnings. The entire swap fair value will be reclassified into earnings before the expiration date.

Derivatives Not Designated as Hedges

Customer interest rate derivative program

The Company offers certain derivatives products, primarily interest rate swaps, directly to qualified commercial banking customers to facilitate their risk management strategies. In some instances, the Company acts only as an intermediary, simultaneously entering into offsetting agreements with unrelated financial institutions, thereby mitigating its net risk exposure resulting from such transactions and not significantly impacting its results of operations. Because the interest rate derivatives associated with this program do not meet hedge accounting requirements, changes in the fair value of both the customer derivatives and any offsetting derivatives are recognized directly in earnings as a component of noninterest income.

Mortgage banking derivatives

The Company enters into certain derivative agreements as part of its mortgage banking and related risk management activities. These agreements include interest rate lock commitments on prospective residential mortgage loans and forward commitments to sell these loans to investors on a mandatory delivery basis. The Company also economically hedges the value of MSRs by entering into a series of commitments to purchase mortgage-backed securities in the future.

Fair Values of Derivative Instruments on the Balance Sheet

The following tables disclose the fair value of derivative instruments in the Company's balance sheets at June 30, 2018, and December 31, 2017, as well as the effect of these derivative instruments on the Company's condensed consolidated statements of income for the six months ended June 30, 2018 and 2017:



	Notional Amounts⁽¹⁾				Fair Values
(Dollars in thousands)	June 30, 2018		December 31, 2017		June 30, 2018			December 31, 2017
Derivatives designated as cash flow hedging instruments:
Interest rate swaps included in other assets	$	10,500	$	10,500	$	284		$	41

Derivatives not designated as hedging instruments:
Interest rate swaps included in other assets	$	120,469	$	132,959	$	1,660		$	2,314
Interest rate swaps included in other liabilities	140,871		159,479		(1,829		)	(3,221		)
Forward commitments to purchase mortgage-backed securities included in other assets (liabilities)	84,000		160,000		369			(50		)
Forward commitments to sell residential mortgage loans included in other assets (liabilities)	48,650		57,400		(154		)	(49		)
Interest rate-lock commitments on residential mortgage loans included in other assets	38,862		37,072		721			791
	$	432,852	$	546,910	$	767		$	(215	)

____________________________


⁽¹⁾	Notional or contractual amounts, which represent the extent of involvement in the derivatives market, are used to determine the contractual cash flows required in accordance with the terms of the agreement. These amounts are typically not exchanged, significantly exceed amounts subject to credit or market risk and are not reflected in the consolidated balance sheets.

The weighted-average rates paid and received for interest rate swaps at June 30, 2018, were as follows:



	Weighted-Average
	Interest Rate Paid		Interest Rate Received
Interest rate swaps:
Cash flow hedges	4.81	%	5.08	%
Non-hedging interest rate swaps - financial institution counterparties	4.61		3.97
Non-hedging interest rate swaps - customer counterparties	3.87		4.50

Gains and losses recognized on derivative instruments not designated as hedging instruments are as follows:



(Dollars in thousands)	Three months ended June 30,						Six months ended June 30,
Derivatives not designated as hedging instruments:	2018			2017			2018			2017
Amount of gain (loss) recognized in mortgage banking revenue	$	(545	)	$	50		$	(2,206	)	$	440
Amount of gain (loss) recognized in other non-interest income	215			(55		)	738			211

Some interest rate swaps included in other assets are subject to a master netting arrangement with the counterparty in all years presented and could be offset against some amounts included in interest rate swaps included in other liabilities. The Company has chosen not to net these exposures in the condensed consolidated balance sheets, and any impact of netting these amounts would not be significant.

At June 30, 2018, and December 31, 2017, the Company had cash collateral on deposit with swap counterparties totaling $250,000 and $7.0 million, respectively. These amounts are included in interest-bearing deposits in banks in the condensed consolidated balance sheets.

Stock and Incentive Compensation Plans

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock and Incentive Compensation Plans

Note 8 - Stock and Incentive Compensation Plans

The Company has granted, and currently has outstanding, stock and incentive compensation awards subject to the provisions of the Company's 2012 Stock Incentive Plan (the "2012 Plan"). Additionally, awards have been issued prior to the establishment of the 2012 Plan, some of which are still outstanding. The 2012 Plan is designed to provide flexibility to the Company regarding its ability to motivate, attract and retain the services of key officers, employees and directors. The 2012 Plan allows the Company to make grants of dividend equivalent rights, incentive stock options, non-qualified stock options, performance unit awards, restricted stock awards, restricted stock units and stock appreciation rights. At June 30, 2018, the maximum number of shares of the Company's common stock available for issuance under the 2012 Plan was 1,098,521 shares.

Share-based compensation cost charged to income for the three and six months ended June 30, 2018 and 2017, is presented below:



	Three months ended June 30,				Six months ended June 30,
(Dollars in thousands)	2018		2017		2018		2017
Restricted stock	$	223	$	275	$	417	$	522
Stock options⁽¹⁾	—		—		—		(30		)
Total stock compensation expense	$	223	$	275	$	417	$	492
Related tax benefits recognized in net income	$	47	$	96	$	88	$	172

____________________________


⁽¹⁾	Stock option expense for the six months ended June 30, 2017, included expense reversal related to 5,546 common stock options forfeited during the period. All remaining stock options became fully vested during the first quarter of 2017, with no further expense incurred after February 2017.

Restricted Stock Grants

The Company's restricted stock grants are time-vested awards and are granted to the Company's Board of Directors, executives and senior management team. The service period in which time-vested awards are earned ranges from one to five years. Time-vested awards are valued utilizing the fair value of the Company's stock at the grant date. These awards are recognized on the straight-line method over the requisite service period, with forfeitures recognized as they occur.

The following table summarizes the Company's time-vested award activity:



	Six months ended June 30,
	2018				2017
	Shares		Weighted Average Grant-Date Fair Value		Shares		Weighted Average Grant-Date Fair Value
Nonvested shares, January 1,	61,293		$	24.61	84,019		$	24.22
Granted	39,151		35.21		21,290		24.44
Vested	(14,632	)	24.48		(18,532	)	24.18
Forfeited	—		—		(3,524	)	24.09
Nonvested shares, June 30,	85,812		$	29.47	83,253		$	24.29

During the six months ended June 30, 2018, award recipients surrendered 2,187 shares to cover taxes owed upon the vesting of restricted stock awards. During the six months ended June 30, 2017, award recipients surrendered 3,553 shares to cover taxes owed upon the vesting of restricted stock awards.

At June 30, 2018, there was $2.1 million of total unrecognized compensation cost related to nonvested restricted shares awarded under the 2012 Plan. That cost is expected to be recognized over a weighted average period of 2.17 years.

Stock Option Grants

The Company issues common stock options to select officers and employees through individual agreements and as a result of obligations assumed in association with negotiated mergers. As a result, both incentive and nonqualified stock options have been issued and may be issued in the future. The exercise price of each option varies by agreement and is based on either the fair value of the stock at the date of the grant in circumstances where option grants occurred or based on the previously committed exercise price in the case of options acquired through merger. No outstanding stock option has a term that exceeds twenty years. Vesting periods range from immediate to ten years from the date of grant or merger. The Company recognizes compensation cost for stock option grants over the required service period based upon the grant date fair-value, which is established using a Black-Scholes valuation model. The Black-Scholes valuation model uses assumptions of risk-free interest rate, expected term of stock options, expected stock price volatility and expected dividends. Forfeitures are recognized as they occur.

The table below summarizes the status of the Company's stock options and changes during the six months ended June 30, 2018 and 2017.



(Dollars in thousands, except per share amounts)	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Six months ended June 30, 2017
Outstanding at January 1, 2017	358,638		$	11.37	7.79	$	3,844
Forfeited	(5,546	)	23.89
Outstanding at June 30, 2017	353,092		$	11.17	7.26	$	5,137

Six months ended June 30, 2018
Outstanding at January 1, 2018	319,500		$	10.65	7.07	$	4,840
Outstanding at June 30, 2018	319,500		10.65		6.57	9,677
Exercisable at June 30, 2018	319,500		$	10.65	6.57	$	9,677

There were no stock options granted or exercised during the six months ended June 30, 2018 or 2017.

Income Taxes

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Note 9 - Income Taxes

The provision for income taxes is as follows:



	Three months ended June 30,						Six months ended June 30,
(Dollars in thousands)	2018			2017			2018			2017
Federal income taxes:
Current	$	(138	)	$	(3,303	)	$	2,037		$	(921	)
Deferred	2,658			3,969			3,159			4,019
State income taxes:
Current	268			65			344			226
Deferred	(28		)	42			4			29
Income tax expense	$	2,760		$	773		$	5,544		$	3,353
Effective income tax rate	17.9		%	16.8		%	17.5		%	23.3		%

The effective income tax rates differed from the U.S. statutory federal income tax rates of 21% during 2018, and 35% during 2017, primarily due to the effect of tax-exempt income from securities, low income housing and qualified school construction bond tax credits, tax-exempt income from life insurance policies and income tax effects associated with stock-based compensation. Because of these items, the Company expects the effective income tax rate to continue to remain below the U.S. statutory rate. These tax-exempt items can have a larger than proportional effect on the effective income tax rate as net income decreases.

The Tax Cuts and Jobs Act, enacted on December 22, 2017, reduced the U.S. federal corporate tax rate from 35% to 21% effective January 1, 2018. The Company remeasured certain deferred tax assets and liabilities in the period of enactment based on the rates at which they are expected to reverse in the future, which is generally 21%.

During the first quarter of 2018, the Company adopted the provisions of ASU 2018-02 which resulted in a $282,000 adjustment from accumulated other comprehensive income to retained earnings. Refer to Note 10 - Accumulated Other Comprehensive Income and Note 1 - Significant Accounting Policies for additional information.

The Company files a consolidated income tax return in the U.S. federal jurisdiction and various states. With few exceptions, the Company is no longer subject to income tax examinations by tax authorities in these taxing jurisdictions for the years before 2014.

Accumulated Other Comprehensive Income

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Accumulated Other Comprehensive Income

Note 10 - Accumulated Other Comprehensive Income

Accumulated other comprehensive income ("AOCI") includes the after-tax change in unrealized gains and losses on available for sale ("AFS") securities and cash flow hedging activities.



(Dollars in thousands)	Unrealized gains on AFS securities			Cash flow hedges			Accumulated other comprehensive income
Balance at January 1, 2018	$	1,280		$	27		$	1,307
Net change	(5,834		)	193			(5,641		)
Reclassification of tax effects related to the adoption of ASU 2018-02⁽¹⁾:
Current	(293		)	17			(276		)
Deferred	569			(11		)	558
Balance at June 30, 2018	$	(4,278	)	$	226		$	(4,052	)

Balance at January 1, 2017	$	3,505		$	(42	)	$	3,463
Net change	930			(16		)	914
Balance at June 30, 2017	$	4,435		$	(58	)	$	4,377

____________________________

⁽¹⁾

During the first quarter of 2018, the Company adopted ASU 2018-02. The ASU was issued by the Financial Accounting Standards Board ("FASB") in February 2018, to address the issue of other comprehensive income or loss that became stranded in AOCI as a result of the re-measurement of an entity’s deferred income tax assets and liabilities following the reduction of the U.S. federal corporate tax rate from 35% to 21% pursuant to the enactment of the Tax Cuts and Jobs Act in December 2017. The Company also had certain current tax amounts stranded in AOCI that resulted from a tax accounting election to tax net gains and losses on AFS securities and cash flow hedges as current items beginning in 2016. The Company reclassifies the taxes from AOCI to earnings as the individual securities and hedges are realized. Due to the change in corporate tax rates, the Company had certain net gains and losses taxed at the 35% rate reflected in AOCI. As these transactions are realized over time, they will flow through income tax expense at the 21% rate. Rather than adjusting income tax expense for the difference as each of these securities and instruments are realized, the Company elected to adjust the difference (stranded tax effect) to retained earnings, consistent with the treatment of the deferred tax adjustment.

Stockholders' Equity	6 Months Ended
Stockholders' Equity	Jun. 30, 2018
Equity [Abstract]
Stockholders' Equity	Note 11 - Stockholders' Equity Stock Issuance On May 9, 2018, the Company completed the initial public offering of its common stock at a price to the public of $34.00 per share. The Company issued 3,045,426 shares in the offering, including 545,426 shares sold at the option of the underwriters, and certain selling shareholders sold 1,136,176 shares in the offering. The Company received net proceeds of $96.3 million, before expenses, in the offering. The Company's common stock became eligible for trading on May 9, 2018, on the Nasdaq Global Select Market under the symbol “OBNK.” Preferred Stock On June 8, 2018, the Company redeemed all of the 48,260 shares of its Senior Non-Cumulative Perpetual Preferred Stock, Series SBLF (“SBLF Preferred Stock”) thereby eliminating its obligation to pay the nine percent dividend on the SBLF stock. The aggregate redemption price of the SBLF Preferred Stock was $49.1 million, which included dividends of $808,000 accrued up to, but not including, the redemption date. The SBLF Preferred Stock was redeemed from the Company's surplus capital, which included the proceeds of its recently completed initial public offering. The redemption was approved by Origin’s primary federal regulator and it terminated the Company's participation in the Small Business Lending Fund program. During the quarter ended June 30, 2018, all of the 901,644 shares of the Company's outstanding Series D preferred stock were converted into shares of its common stock, on a one-for-one basis. As a result, no shares of Series D preferred stock were outstanding at June 30, 2018.

Capital and Regulatory Matters

6 Months Ended

Jun. 30, 2018

Banking and Thrift [Abstract]

Capital and Regulatory Matters

Note 12 - Capital and Regulatory Matters

The Company (on a consolidated basis) and the Bank are subject to various regulatory capital requirements administered by federal and state banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

The Company is subject to the Basel III regulatory capital framework (the "Basel III Capital Rules"). Starting in January 2016, the implementation of the capital conservation buffer was effective for the Company starting at the 0.625% level and increasing 0.625% each year thereafter, until it reaches 2.5% on January 1, 2019. The capital conservation buffer is designed to absorb losses during periods of economic stress and requires increased capital levels for the purpose of capital distributions and other payments. Failure to meet the full amount of the buffer will result in restrictions on the Company's ability to make capital distributions, including dividend payments and stock repurchases and to pay discretionary bonuses to executive officers.

Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios (set forth in the table below) of total, CET1 and Tier 1 capital (as defined in the regulations) to risk-weighted assets (as defined), and of Tier 1 capital (as defined) to average assets (as defined). Management believes, at June 30, 2018, and December 31, 2017, that the Company and the Bank met all capital adequacy requirements to which they are subject, including the capital buffer requirement.

At June 30, 2018, and December 31, 2017, the Bank’s capital ratios exceeded those levels necessary to be categorized as “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well capitalized," the Bank must maintain minimum total risk based, CET1, Tier 1 risk based and Tier 1 leverage ratios as set forth in the table.

The actual capital amounts and ratios of the Company and Bank at June 30, 2018, and December 31, 2017, are presented in the following table:



(Dollars in thousands)	Actual				Minimum Capital Required - Basel III Fully Phased-In				To be Well Capitalized Under Prompt Corrective Action Provisions
June 30, 2018	Amount		Ratio		Amount		Ratio		Amount		Ratio
Common Equity Tier 1 Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	$	496,073	12.35	%	$	281,246	7.00	%	N/A		N/A
Origin Bank	480,656		11.99		280,640		7.00		$	260,594	6.50	%
Tier 1 Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	505,378		12.58		341,512		8.50		N/A		N/A
Origin Bank	480,656		11.99		340,777		8.50		320,731		8.00
Total Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	541,749		13.48		421,867		10.50		N/A		N/A
Origin Bank	517,027		12.90		420,957		10.50		400,911		10.00
Leverage Ratio
Origin Bancorp, Inc.	505,378		11.63		173,801		4.00		N/A		N/A
Origin Bank	480,656		11.11		173,077		4.00		216,346		5.00
December 31, 2017
Common Equity Tier 1 Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	$	360,069	9.35	%	$	269,570	7.00	%	N/A		N/A
Origin Bank	416,175		10.82		269,244		7.00		$	250,012	6.50	%
Tier 1 Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	433,338		11.25		327,411		8.50		N/A		N/A
Origin Bank	416,175		10.82		326,940		8.50		307,708		8.00
Total Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	472,437		12.26		404,616		10.50		N/A		N/A
Origin Bank	455,274		11.84		403,748		10.50		384,522		10.00
Leverage Ratio
Origin Bancorp, Inc.	433,338		10.53		164,611		4.00		N/A		N/A
Origin Bank	416,175		10.13		164,334		4.00		205,418		5.00

In the ordinary course of business, the Company is dependent upon dividends from the Bank to provide funds for the payment of dividends to stockholders and to provide for other cash requirements. Banking regulations may limit the amount of dividends that may be paid. Approval by regulatory authorities is required if the effect of dividends declared would cause the regulatory capital of the Bank to fall below specified minimum levels. Approval is also required if dividends declared and paid exceed the Bank's year-to-date net income combined with the retained net income for the preceding year. Under the foregoing dividend restrictions and while maintaining its “well capitalized” status, management believes that at June 30, 2018, the Bank could pay aggregate dividends of up to $30.8 million to the Company without prior regulatory approval.

- Definition

The entire disclosure for banks, savings institutions, and credit unions, for regulatory capital requirements imposed by the Federal Reserve System (FRB), the Federal Deposit Insurance Corporation (FDIC), the Office of Thrift Supervision (OTS) or for any state imposed capital requirements, as applicable. The disclosure may include (1) a description of regulatory capital requirements (a) for capital adequacy purposes and (b) established by the prompt corrective action provisions of Section 38 of the Federal Depository Insurance Act; (2) the actual or possible material effects of noncompliance with such requirements; (3) whether the entity is in compliance with the regulatory capital requirements including (a) required and actual ratios and amounts of Tier 1 leverage, Tier 1 risk-based, and total risk-based capital, tangible capital (for savings institutions), and Tier 3 capital for market risk (for certain banks and bank holding companies), (b) factors that may significantly affect capital adequacy; (4) the prompt corrective action category in which the entity was classified as of its most recent notification; (5) whether management believes any conditions or events since notification have changed the entity's category. Also may include additional information that might be disclosed in situations where substantial doubt about the entity's ability to continue as a going concern for a reasonable period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1G
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958577-112826

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1C
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958572-112826

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1E
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958574-112826

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1H
-URI http://asc.fasb.org/extlink&oid=84167132&loc=d3e65071-112826

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958569-112826

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958570-112826

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1F
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958575-112826

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1D
-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958573-112826

+ Details

Commitments and Contingencies

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 13 - Commitments and Contingencies

Credit Related Commitments

In the normal course of business, the Company enters into financial instruments, such as commitments to extend credit and letters of credit, to meet the financing needs of its customers. Such instruments are not reflected in the accompanying consolidated financial statements until they are funded, although they expose the Company to varying degrees of credit risk and interest rate risk in much the same way as funded loans.

Commitments to extend credit include revolving commercial credit lines, nonrevolving loan commitments issued mainly to finance the acquisition and development or construction of real property or equipment, and credit card and personal credit lines. The availability of funds under commercial credit lines and loan commitments generally depends on whether the borrower continues to meet credit standards established in the underlying contract and has not violated other contractual conditions. Loan commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee by the borrower. Credit card and personal credit lines are generally subject to cancellation if the borrower’s credit quality deteriorates. A number of commercial and personal credit lines are used only partially or, in some cases, not at all before they expire, and the total commitment amounts do not necessarily represent future cash requirements of the Company.

A substantial majority of the letters of credit are standby agreements that obligate the Company to fulfill a customer’s financial commitments to a third party if the customer is unable to perform. The Company issues standby letters of credit primarily to provide credit enhancement to its customers’ other commercial or public financing arrangements and to help them demonstrate financial capacity to vendors of essential goods and services.

The contract amounts of these instruments reflect the Company’s exposure to credit risk. The Company undertakes the same credit evaluation in making loan commitments and assuming conditional obligations as it does for on-balance sheet instruments and may require collateral or other credit support. These off-balance sheet financial instruments are summarized below:



(Dollars in thousands)	June 30, 2018		December 31, 2017
Commitments to extend credit	$	1,140,653	$	1,068,088
Standby letters of credit	82,816		79,893

In addition to the above, the Company guarantees the credit card debt of certain customers to the merchant bank that issues the credit cards. These guarantees are in place for as long as the guaranteed credit card is open. At both June 30, 2018, and December 31, 2017, these credit card guarantees totaled $1.0 million. This amount represents the maximum potential amount of future payments under the guarantee for which the Company would be responsible in the event of customer non-payment.

At June 30, 2018, and December 31, 2017, the Company had FHLB letters of credit totaling $135 million and $185 million, respectively, available to secure public deposits, and for other purposes required or permitted by law.

Management establishes an asset-specific allowance for lending-related commitments that are considered impaired and computes a formula-based allowance for performing consumer and commercial lending-related commitments. These are computed using a methodology similar to that used for the commercial loan portfolio, modified for expected maturities and probabilities of drawdown. The reserve for lending-related commitments was $2.2 million and $2.0 million at June 30, 2018, and December 31, 2017, respectively, and is included in other liabilities in the accompanying consolidated balance sheets.

Loss Contingencies

From time to time the Company is also party to various legal proceedings arising in the ordinary course of business. Management does not believe that loss contingencies, if any, arising from such pending litigation or regulatory matters would have a material adverse effect on the consolidated financial position or liquidity of the Company.

Significant Accounting Policies (Policies)	6 Months Ended
Significant Accounting Policies (Policies)	Jun. 30, 2018
Accounting Policies [Abstract]
Consolidation	The condensed consolidated financial statements include the accounts of the Company and all other entities in which the Company has a controlling financial interest, including the Bank and Davison Insurance Agency, LLC ("Davison Insurance"), and Davison Insurance’s wholly owned subsidiary, Thomas & Farr Agency, LLC (“T&F”). These condensed consolidated interim financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("US GAAP") and with the rules and regulations of the Securities and Exchange Commission (the "SEC") for interim financial reporting. Accordingly, they do not include all of the information and footnotes required by US GAAP for complete financial statements. In the opinion of management, all normal and recurring adjustments which are considered necessary to fairly present the results for the interim periods presented have been included.
Use of Estimates	Use of Estimates: The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Material estimates that are particularly susceptible to change are: the allowance for loan losses; the evaluation of investment securities for other than temporary impairment; fair value measurements of assets and liabilities; and income taxes. Estimates and assumptions are reviewed periodically and the effects of revisions are reflected in the consolidated financial statements in the period they are deemed necessary. While management uses its best judgment, actual results could differ from those estimates.
Effect of Recently Adopted Accounting Standards and Newly Issued But Not Yet Effective Accounting Standards	Effect of Recently Adopted Accounting Standards ASU No. 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The amendments in this update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. Since these amendments only relate to the reclassification of the income tax effects of the Tax Cuts and Jobs Act, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. These amendments require that an entity disclose a description of the accounting policy for releasing income tax effects from accumulated other comprehensive income. These amendments are effective for fiscal years beginning after December 15, 2018, and interim periods within those years. Early adoption is permitted, including adoption in any interim period, for reporting periods for which financial statements have not yet been issued. These amendments should be applied either in the period of adoption or retrospectively to each period in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. Rather than adjusting income tax expense for the differences as the effect of the change in the U.S. federal corporate income tax rates are realized, the Company elected to adjust the difference (stranded tax effect) to retained earnings, consistent with the treatment of the deferred tax adjustment. The Company adopted this guidance during the first quarter of 2018, which resulted in a reclassification of $282,000 from accumulated other comprehensive income to retained earnings. The Company's policy is to release material stranded tax effects on a specific identification basis. ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. ASU 2017-12 permits hedge accounting for risk components in hedging relationships involving nonfinancial risk and interest rate risk. It also changes the guidance for designating fair value hedges of interest rate risk and for measuring the change in fair value of the hedged item in fair value hedges of interest rate risk. In addition to the amendments to the designation and measurement guidance for qualifying hedging relationships, the amendments in this ASU also align the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements. This ASU requires an entity to present the earnings effect of the hedging instrument in the same income statement line item in which the earnings effect of the hedged item is reported. For public entities, these amendments are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early application is permitted. The Company has analyzed its hedges and determined that the amendments in this ASU are currently not applicable to any hedge relationships in effect and therefore, no transition adjustment is necessary. The Company has adopted this ASU during the first quarter of 2018, and will apply the updates to hedging instruments on a go forward basis. ASU No. 2016-15 —Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. ASU 2016-15 adds or clarifies guidance on the classification of certain cash receipts and payments in the statement of cash flows. The Company adopted this guidance on January 1, 2018, and, as a result, reclassified $741,000 of return of capital proceeds from limited partnership investments from operating activities to investing activities for the six-month period ended June 30, 2017. ASU No. 2016-01 —Financial Instruments —Overall (Subtopic 825-10). The Company adopted this update effective January 1, 2018. The main provisions are to eliminate the available for sale classification of accounting for equity securities and to adjust the fair value disclosures for financial instruments carried at amortized costs such that the disclosed fair values represent an exit price as opposed to an entry price. The majority of the Company's equity investments qualify for the practical expedient allowed for equity securities without a readily determinable fair value, such that the Company has elected to carry these securities at cost adjusted for any observable transactions during the period, less any impairment. To date, no impairment has been recorded on the Company's investments in equity securities which do not have readily determinable fair values. The disclosure of fair value of the loan and interest-bearing deposit portfolios has been presented using an exit price methodology and had an immaterial impact on the Company's financial position. Revenue Recognition: On January 1, 2018, the Company adopted ASU No. 2014-09, "Revenue from Contracts with Customers" (Topic 606), which outlines a single comprehensive revenue recognition model for entities to follow in accounting for revenue from contracts with customers. The implementation of this new guidance did not have a material impact on the measurement or recognition of revenue and no cumulative effect adjustment was recorded to opening retained earnings. Results for reporting periods beginning after January 1, 2018, are presented under Topic 606, while prior period amounts were not adjusted and continue to be reported in accordance with the Company's historic accounting under Topic 605. The majority of the Company's revenue is generated from sources outside the scope of Topic 606. Interest and fees on loans, income from investment securities and mortgage banking revenue are all outside the scope of Topic 606 and are recorded in adherence with US GAAP. Service charges and fees on deposit accounts, credit card interchange insurance commission and fee income, as well as gains and losses on the sale of other assets including other real estate owned (“OREO”) are within the scope of Topic 606; however, the recognition of these revenue streams did not change significantly upon adoption of Topic 606. Descriptions of the Company's revenue generating activities that are within the scope of Topic 606 are described below. Service charges and fees on deposit accounts Service charges and fees on deposit accounts are primarily comprised of maintenance fees, service fees, stop payment and non-sufficient funds fees. The Company's performance obligation for service fees or other fees covering a period of time are generally satisfied, and related revenue recognized, over the period in which the service is provided. The Company's performance obligation for transactional-based fees are generally satisfied, and related revenue recognized, at a point in time. Insurance commission and fee income The Company earns commission income through production on behalf of insurance carriers and also earns fee income by providing complementary services such as collection of premiums. In most instances the Company considers the performance obligation to be complete at the time the service was rendered. Credit card interchange income The Company records credit card interchange income at a point in time as card transactions occur. The Company's performance obligation for these transactions is deemed to have occurred upon completion of each transaction. The amounts are included as a component of other income in the consolidated statements of income. Gain or loss on sale of other assets and OREO In the normal course of business, the Company recognizes the sale on other assets and OREO, along with any gain or loss, when control of the property transfers to the buyer through an executed contractual agreement. The transaction price is fixed, and on occasion the Company will finance a portion of the purchase price of the transferred asset. Effect of Newly Issued But Not Yet Effective Accounting Standards ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. ASU 2016-13 amends guidance on reporting credit losses for assets held at amortized cost basis and available for sale debt securities. For assets held at amortized cost basis, Topic 326 eliminates the probable initial recognition threshold in current GAAP and, instead, requires an entity to reflect its current estimate of all expected credit losses. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial assets to present the net amount expected to be collected. For available for sale debt securities, credit losses should be measured in a manner similar to current GAAP, however Topic 326 will require that credit losses be presented as an allowance rather than as a write-down. This ASU affects entities holding financial assets and net investment in leases that are not accounted for at fair value through net income. The amendments affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The Company anticipates a significant change in the processes and procedures to calculate the loan losses, including changes in assumptions and estimates to consider expected credit losses over the life of the loan versus the current accounting practice that utilizes the incurred loss model. The Company expects to recognize a one-time cumulative effect adjustment to the allowance for loan losses at the beginning of the first reporting period in which the new standard is effective, but cannot yet determine the magnitude of any such one-time adjustment or the overall impact on our results of operations, financial position or disclosures. However, the Company has begun developing processes and procedures to ensure we are fully compliant at the required adoption date. Among other things, the Company has initiated data gathering and assessment to support forecasting of asset quality, loan balances, and portfolio net charge-offs and developing asset quality forecast models in preparation for the implementation of this standard. For public business entities that are SEC filers, the amendments in the update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company continues to evaluate the impact of this ASU on the consolidated financial statements and disclosures. ASU No. 2016-02, Leases (Topic 842). ASU 2016-02 requires lessees to put most leases on their balance sheets but recognize expenses in the income statement in a manner similar to current accounting treatment. This ASU changes the guidance on sale-leaseback transactions, initial direct costs and lease execution costs, and, for lessors, modifies the classification criteria and the accounting for sales-type and direct financing leases. For public business entities, this ASU is effective for annual periods beginning after December 15, 2018, and interim periods therein. Entities are required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. The Company is evaluating the impact of this ASU on the consolidated financial statements and disclosures.

Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted



	Three months ended June 30,				Six months ended June 30,
(Dollars in thousands, except per share amounts)	2018		2017		2018		2017
Basic earnings per common share
Net income	$	12,702	$	3,823	$	26,109	$	11,070
Less: Dividends to preferred stock	808		1,115		1,923		2,230
Net income allocated to participating stockholders⁽¹⁾	40		102		921		369
Net income available to common stockholders	$	11,854	$	2,606	$	23,265	$	8,471
Weighted average common shares outstanding⁽²⁾	22,107,489		19,412,313		20,451,960		19,408,424
Basic earnings per common share	$	0.54	$	0.13	$	1.14	$	0.44
Diluted earnings per common share
Diluted earnings applicable to common stockholders⁽³⁾	$	11,876	$	2,612	$	23,318	$	8,497
Weighted average diluted common shares outstanding:
Weighted average common shares outstanding	22,107,489		19,412,313		20,451,960		19,408,424
Dilutive effect of common stock options	274,514		211,821		274,514		211,745
Weighted average diluted common shares outstanding	22,382,003		19,624,134		20,726,474		19,620,169
Diluted earnings per common share	$	0.53	$	0.13	$	1.13	$	0.43

____________________________

⁽¹⁾

⁽²⁾


⁽³⁾	Net income allocated to common stockholders for basic and diluted earnings per share may differ under the two-class method as a result of adding common stock equivalents for options to dilutive shares outstanding, which alters the ratio used to allocate earnings to common stockholders and participating securities for the purposes of calculating diluted earnings per share.

Securities (Tables)

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Summary of Amortized Cost and Estimated Fair Value of Securities



(Dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
June 30, 2018
Available for sale:
State and municipal securities	$	122,007	$	2,249	$	(286	)	$	123,970
Corporate bonds	3,000		89		—			3,089
Commercial mortgage-backed securities	7,580		—		(6		)	7,574
Residential mortgage-backed securities	165,659		213		(2,642		)	163,230
Residential collateralized mortgage obligations	214,801		101		(5,252		)	209,650
Total	$	513,047	$	2,652	$	(8,186	)	$	507,513
Held to maturity:
State and municipal securities	$	19,731	$	—	$	(31	)	$	19,700
Securities carried at fair value through income:
State and municipal securities⁽¹⁾	$	11,688	$	—	$	—		$	11,413

December 31, 2017
Available for sale:
State and municipal securities	$	125,909	$	4,104	$	(35	)	$	129,978
Corporate bonds	3,000		136		—			3,136
Residential mortgage-backed securities	105,132		492		(595		)	105,029
Residential collateralized mortgage obligations	168,645		262		(2,518		)	166,389
Total	$	402,686	$	4,994	$	(3,148	)	$	404,532
Held to maturity:
State and municipal securities	$	20,188	$	77	$	—		$	20,265
Securities carried at fair value through income:
State and municipal securities⁽¹⁾	$	11,918	$	—	$	—		$	12,033

____________________________


⁽¹⁾	Securities carried at fair value through income have no unrealized gains or losses at the balance sheet date as all changes in value have been recognized in the consolidated statements of income. See Note 5 - Fair Value of Financial Instruments for more information.

Schedule of Securities with Unrealized Loss



(Dollars in thousands)	Less than 12 Months					12 Months or More					Total
June 30, 2018	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Available for sale:
State and municipal securities	$	17,822	$	(246	)	$	1,184	$	(40	)	$	19,006	$	(286	)
Commercial mortgage-backed securities	7,580		(6		)	—		—			7,580		(6		)
Residential mortgage-backed securities	92,554		(1,777		)	18,224		(865		)	110,778		(2,642		)
Residential collateralized mortgage obligations	125,231		(2,406		)	56,194		(2,846		)	181,425		(5,252		)
Total	$	243,187	$	(4,435	)	$	75,602	$	(3,751	)	$	318,789	$	(8,186	)
Held to maturity:
State and municipal securities	$	14,480	$	(31	)	$	—	$	—		$	14,480	$	(31	)

December 31, 2017
Available for sale:
State and municipal securities	$	2,114	$	(5	)	$	1,210	$	(30	)	$	3,324	$	(35	)
Residential mortgage-backed securities	46,018		(198		)	20,233		(397		)	66,251		(595		)
Residential collateralized mortgage obligations	70,788		(641		)	60,622		(1,877		)	131,410		(2,518		)
Total	$	118,920	$	(844	)	$	82,065	$	(2,304	)	$	200,985	$	(3,148	)
Held to maturity:
State and municipal securities	$	—	$	—		$	—	$	—		$	—	$	—

Securities Classified by Contractual Maturity



(Dollars in thousands)	Held to maturity				Available for sale
June 30, 2018	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in one year or less	$	—	$	—	$	2,721	$	2,729
Due after one year through five years	14,511		14,480		27,425		27,868
Due after five years through ten years	—		—		83,686		85,020
Due after ten years	5,220		5,220		11,175		11,442
Commercial mortgage-backed securities	—		—		7,580		7,574
Residential mortgage-backed securities	—		—		165,659		163,230
Residential collateralized mortgage obligations	—		—		214,801		209,650
Total	$	19,731	$	19,700	$	513,047	$	507,513

Securities Pledged as Collateral

The following table presents carrying amounts of securities pledged as collateral for deposits and repurchase agreements for the period ends presented.



(Dollars in thousands)	June 30, 2018		December 31, 2017
Carrying value of securities pledged to secure public deposits	$	288,417	$	276,319
Carrying value of securities pledged to repurchase agreements	37,575		36,685

Loans (Tables)

6 Months Ended

Jun. 30, 2018

Receivables [Abstract]

Schedule of Loans

Loans consist of the following:



(Dollars in thousands)	June 30, 2018		December 31, 2017
Loans held for sale	$	62,072	$	65,343
Loans held for investment:
Loans secured by real estate:
Commercial real estate	$	1,091,581	$	1,083,275
Construction/land/land development	380,869		322,404
Residential real estate	563,016		570,583
Total real estate	2,035,466		1,976,262
Commercial and industrial	1,046,488		989,220
Mortgage warehouse lines of credit	270,494		255,044
Consumer	19,648		20,505
Total loans held for investment⁽¹⁾	3,372,096		3,241,031
Less: Allowance for loan losses	34,151		37,083
Net loans held for investment	$	3,337,945	$	3,203,948

____________________________


⁽¹⁾	Includes net deferred loan fees of $1.7 million and $1.0 million at June 30, 2018, and December 31, 2017, respectively.

Recorded Investment in Loans by Credit Quality Indicator

The recorded investment in loans by credit quality indicator at June 30, 2018 and December 31, 2017, excluding loans held for sale, were as follows:



	June 30, 2018
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Loss		Total
Loans secured by real estate:
Commercial real estate	$	1,065,396	$	8,518	$	17,667	$	—	$	—	$	1,091,581
Construction/land/land development	377,516		162		3,191		—		—		380,869
Residential real estate	551,468		31		11,517		—		—		563,016
Total real estate	1,994,380		8,711		32,375		—		—		2,035,466
Commercial and industrial	981,356		11,267		53,865		—		—		1,046,488
Mortgage warehouse lines of credit	270,494		—		—		—		—		270,494
Consumer	19,308		—		340		—		—		19,648
Total loans held for investment	$	3,265,538	$	19,978	$	86,580	$	—	$	—	$	3,372,096



	December 31, 2017
(Dollars in thousands)	Pass		Special Mention		Substandard		Doubtful		Loss		Total
Loans secured by real estate:
Commercial real estate	$	1,055,911	$	7,798	$	19,566	$	—	$	—	$	1,083,275
Construction/land/land development	318,488		170		3,746		—		—		322,404
Residential real estate	560,945		778		8,860		—		—		570,583
Total real estate	1,935,344		8,746		32,172		—		—		1,976,262
Commercial and industrial	915,111		15,332		58,777		—		—		989,220
Mortgage warehouse lines of credit	255,044		—		—		—		—		255,044
Consumer	20,223		—		279		3		—		20,505
Total loans held for investment	$	3,125,722	$	24,078	$	91,228	$	3	$	—	$	3,241,031

The following is a summary description of the Company's internal risk ratings:



• Pass (1-6)	Loans within this risk rating are further categorized as follows:
Minimal risk (1)	Well-collateralized by cash equivalent instruments held by the Bank.
Moderate risk (2)	Borrowers with excellent asset quality and liquidity. Borrowers' capitalization and liquidity exceed industry norms. Borrowers in this category have significant levels of liquid assets and have a low level of leverage.
Better than average risk (3)	Borrowers with strong financial strength and excellent liquidity that consistently demonstrate strong operating performance. Borrowers in this category generally have a sizable net worth that can be converted into liquid assets within 12 months.
Average risk (4)	Borrowers with sound credit quality and financial performance, including liquidity. Borrowers are supported by sufficient cash flow coverage generated through operations across the full business cycle.
Marginally acceptable risk (5)	Loans generally meet minimum requirements for an acceptable loan in accordance with lending policy, but possess one or more attributes that cause the overall risk profile to be higher than the majority of newly approved loans.
Watch (6)	A passing loan with one or more factors that identify a potential weakness in the overall ability of the borrower to repay the loan. These weaknesses are generally mitigated by other factors that reduce the risk of delinquency or loss.
• Special Mention (7)	This grade is intended to be temporary and includes borrowers whose credit quality have deteriorated and is at risk of further decline.
• Substandard (8)	This grade includes "Substandard" loans, in accordance with regulatory guidelines. Substandard loans exhibit a well-defined weakness that jeopardizes debt repayment in accordance with contractual agreements, even though the loan may be performing. These obligations are characterized by the distinct possibility that a loss may be incurred if these weaknesses are not corrected and repayment may be dependent upon collateral liquidation or secondary source of repayment.
• Doubtful (9)	This grade includes "Doubtful" loans, in accordance with regulatory guidelines. Such loans are placed on nonaccrual status and repayment may be dependent upon collateral with no readily determinable valuation or valuations that are highly subjective in nature. Repayment for these loans is considered improbable based on currently existing facts and circumstances.
• Loss (0)	This grade includes "Loss" loans in accordance with regulatory guidelines. Loss loans are charged-off or written-down when repayment is not expected.

Loan Portfolio Aging Analysis

The following tables present the Company’s loan portfolio aging analysis at the dates indicated:



	June 30, 2018
(Dollars in thousands)	30-59 Days past due		60-89 Days past due		Loans past due 90 days or more		Total past due		Current loans		Total loans receivable		Accruing loans 90 or more days past due
Loans secured by real estate:
Commercial real estate	$	1,121	$	25	$	826	$	1,972	$	1,089,609	$	1,091,581	$	—
Construction/land/land development	1,404		—		709		2,113		378,756		380,869		—
Residential real estate	1,400		1,574		3,359		6,333		556,683		563,016		—
Total real estate	3,925		1,599		4,894		10,418		2,025,048		2,035,466		—
Commercial and industrial	2,088		20		138		2,246		1,044,242		1,046,488		—
Mortgage warehouse lines of credit	—		—		—		—		270,494		270,494		—
Consumer	396		34		18		448		19,200		19,648		—
Total loans held for investment	$	6,409	$	1,653	$	5,050	$	13,112	$	3,358,984	$	3,372,096	$	—



	December 31, 2017
(Dollars in thousands)	30-59 Days past due		60-89 Days past due		Loans past due 90 days or more		Total past due		Current loans		Total loans receivable		Accruing loans 90 or more days past due
Loans secured by real estate:
Commercial real estate	$	8,427	$	2,791	$	1,150	$	12,368	$	1,070,907	$	1,083,275	$	—
Construction/land/land development	1,488		172		464		2,124		320,280		322,404		—
Residential real estate	2,630		347		3,910		6,887		563,696		570,583		—
Total real estate	12,545		3,310		5,524		21,379		1,954,883		1,976,262		—
Commercial and industrial	1,517		9,922		8,074		19,513		969,707		989,220		—
Mortgage warehouse lines of credit	—		—		—		—		255,044		255,044		—
Consumer	178		128		74		380		20,125		20,505		—
Total loans held for investment	$	14,240	$	13,360	$	13,672	$	41,272	$	3,199,759	$	3,241,031	$	—

Allowance for Loan Losses by Portfolio Segment



	Three months ended June 30, 2018
(Dollars in thousands)	Beginning balance		Charge-offs		Recoveries		Provision (Benefit)⁽¹⁾			Ending balance
Loans secured by real estate:
Commercial real estate	$	10,144	$	—	$	89	$	(465	)	$	9,768
Construction/land/land development	2,707		—		—		446			3,153
Residential real estate	5,471		—		30		(33		)	5,468
Commercial and industrial	15,337		766		546		182			15,299
Mortgage warehouse lines of credit	158		—		—		45			203
Consumer	315		28		8		(35		)	260
Total	$	34,132	$	794	$	673	$	140		$	34,151

____________________________


⁽¹⁾	The $311,000 provision for credit losses on the consolidated statements of income includes a $140,000 net loan loss provision and a $171,000 provision for off-balance sheet commitments for the three months ended June 30, 2018.



	Six months ended June 30, 2018
(Dollars in thousands)	Beginning balance		Charge-offs		Recoveries		Provision (Benefit)⁽¹⁾			Ending balance
Loans secured by real estate:
Commercial real estate	$	8,998	$	9	$	216	$	563		$	9,768
Construction/land/land development	2,950		—		1		202			3,153
Residential real estate	5,807		9		49		(379		)	5,468
Commercial and industrial	18,831		2,469		720		(1,783		)	15,299
Mortgage warehouse lines of credit	214		—		—		(11		)	203
Consumer	283		45		32		(10		)	260
Total	$	37,083	$	2,532	$	1,018	$	(1,418	)	$	34,151

____________________________


⁽¹⁾	The $1.2 million benefit for credit losses on the consolidated statements of income includes a $1.4 million net loan loss benefit and a $205,000 provision for off-balance sheet commitments for the six months ended June 30, 2018.



	Three months ended June 30, 2017
(Dollars in thousands)	Beginning balance		Charge-offs		Recoveries		Provision (Benefit) ⁽¹⁾			Ending balance
Loans secured by real estate:
Commercial real estate	$	8,716	$	—	$	74	$	411		$	9,201
Construction/land/land development	2,739		—		1		346			3,086
Residential real estate	5,883		7		40		1,447			7,363
Commercial and industrial	33,805		12,437		235		(256		)	21,347
Mortgage warehouse lines of credit	128		—		—		175			303
Consumer	344		109		20		79			334
Total	$	51,615	$	12,553	$	370	$	2,202		$	41,634

____________________________


⁽¹⁾	The $2.0 million provision for credit losses on the consolidated statements of income includes a $2.2 million net loan loss provision offset by a $249,000 release of provision for off-balance sheet commitments for the three months ended June 30, 2017.



	Six months ended June 30, 2017
(Dollars in thousands)	Beginning balance		Charge-offs		Recoveries		Provision⁽¹⁾		Ending balance
Loans secured by real estate:
Commercial real estate	$	8,718	$	—	$	76	$	407	$	9,201
Construction/land/land development	2,805		—		3		278		3,086
Residential real estate	5,003		20		77		2,303		7,363
Commercial and industrial	33,590		13,149		365		541		21,347
Mortgage warehouse lines of credit	139		—		—		164		303
Consumer	276		233		45		246		334
Total	$	50,531	$	13,402	$	566	$	3,939	$	41,634

____________________________


⁽¹⁾	The $4.8 million provision for credit losses on the consolidated statements of income includes a $3.9 million net loan loss provision and an $829,000 provision for off-balance sheet commitments for the six months ended June 30, 2017.

Loans Receivable by Method of Impairment Evaluation

The following tables present the balance of loans receivable by method of impairment evaluation at the dates indicated:



	June 30, 2018
(Dollars in thousands)	Period end allowance allocated to loans individually evaluated for impairment		Period end allowance allocated to loans collectively evaluated for impairment		Period end loan balance individually evaluated for impairment		Period end loan balance collectively evaluated for impairment ⁽¹⁾
Loans secured by real estate:
Commercial real estate	$	1,183	$	8,585	$	10,040	$	1,061,471
Construction/land/land development	4		3,149		1,315		379,554
Residential real estate	115		5,353		7,994		555,022
Commercial and industrial	1,550		13,749		12,783		1,032,903
Mortgage warehouse lines of credit	—		203		—		270,494
Consumer	49		211		275		19,373
Total	$	2,901	$	31,250	$	32,407	$	3,318,817

____________________________


⁽¹⁾	Excludes $20.1 million and $802,000 of commercial real estate loans and commercial and industrial loans, respectively, at fair value, which are not evaluated for impairment due to the fair value option election. See Note 5 - Fair Value of Financial Instruments for more information.



	December 31, 2017
(Dollars in thousands)	Period end allowance allocated to loans individually evaluated for impairment		Period end allowance allocated to loans collectively evaluated for impairment		Period end loan balance individually evaluated for impairment		Period end loan balance collectively evaluated for impairment ⁽¹⁾
Loans secured by real estate:
Commercial real estate	$	312	$	8,686	$	4,945	$	1,057,330
Construction/land/land development	4		2,946		1,963		320,441
Residential real estate	72		5,735		7,915		562,668
Commercial and industrial	4,356		14,475		24,598		959,011
Mortgage warehouse lines of credit	—		214		—		255,044
Consumer	63		220		237		20,268
Total	$	4,807	$	32,276	$	39,658	$	3,174,762

____________________________


⁽¹⁾	Excludes $21.0 million and $5.6 million of commercial real estate loans and commercial and industrial loans, respectively, at fair value, which are not evaluated for impairment due to the fair value option election. See Note 5 - Fair Value of Financial Instruments for more information

Impaired Loans

The following tables present impaired loans at the dates indicated. No mortgage warehouse lines of credit were impaired at either June 30, 2018, or December 31, 2017.



	June 30, 2018
(Dollars in thousands)	Unpaid contractual principal balance		Recorded investment with no allowance		Recorded investment with an allowance		Total recorded investment		Allocation of allowance for loan losses
Loans secured by real estate:
Commercial real estate	$	10,968	$	2,477	$	7,563	$	10,040	$	1,183
Construction/land/land development	1,655		1,168		147		1,315		4
Residential real estate	10,173		7,209		785		7,994		115
Total real estate	22,796		10,854		8,495		19,349		1,302
Commercial and industrial	13,353		5,095		7,688		12,783		1,550
Consumer	293		185		90		275		49
Total impaired loans	$	36,442	$	16,134	$	16,273	$	32,407	$	2,901



	December 31, 2017
(Dollars in thousands)	Unpaid contractual principal balance		Recorded investment with no allowance		Recorded investment with an allowance		Total recorded investment		Allocation of allowance for loan losses
Loans secured by real estate:
Commercial real estate	$	6,047	$	1,782	$	3,163	$	4,945	$	312
Construction/land/land development	2,268		1,813		150		1,963		4
Residential real estate	10,024		6,750		1,165		7,915		72
Total real estate	18,339		10,345		4,478		14,823		388
Commercial and industrial	25,212		6,161		18,437		24,598		4,356
Consumer	259		141		96		237		63
Total impaired loans	$	43,810	$	16,647	$	23,011	$	39,658	$	4,807

The average recorded investment and interest recognized on impaired loans while classified as impaired for the three and six months ended June 30, 2018 and 2017, were as follows:



	Three months ended June 30,
	2018				2017
(Dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Loans secured by real estate:
Commercial real estate	$	10,093	$	15	$	7,869	$	39
Construction/land/land development	1,368		2		858		2
Residential real estate	7,543		11		9,784		17
Total real estate	19,004		28		18,511		58
Commercial and industrial	13,198		56		36,952		94
Consumer	274		1		206		1
Total impaired loans	$	32,476	$	85	$	55,669	$	153



	Six months ended June 30,
	2018				2017
(Dollars in thousands)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Loans secured by real estate:
Commercial real estate	$	9,942	$	43	$	5,918	$	61
Construction/land/land development	1,650		11		871		5
Residential real estate	7,619		36		9,715		34
Total real estate	19,211		90		16,504		100
Commercial and industrial	15,792		105		33,267		107
Consumer	266		3		205		3
Total impaired loans	$	35,269	$	198	$	49,976	$	210

Non-performing (Nonaccrual) Loans Held for Investment

Non-performing (nonaccrual) loans held for investment were as follows:



(Dollars in thousands)	June 30, 2018		December 31, 2017
Loans secured by real estate:
Commercial real estate	$	8,712	$	1,745
Construction/land/land development	1,197		1,097
Residential real estate	7,713		7,166
Total real estate	17,622		10,008
Commercial and industrial	8,831		13,512
Consumer	340		282
Total nonaccrual loans	$	26,793	$	23,802

Loans Classified as Troubled Debt Restructurings (TDRs)

The following is a summary of loans classified as TDRs.



(Dollars in thousands)	June 30, 2018		December 31, 2017
TDRs
Nonaccrual TDRs	$	1,984	$	2,622
Performing TDRs	5,839		14,234
Total	$	7,823	$	16,856



	At and for the three months ended June 30, 2018
(Dollars in thousands)	Number of loans restructured	Pre-modification recorded balance		Term Concessions		Interest Rate Concessions		Combination		Total Modifications
Loans secured by real estate:
Residential real estate	4	$	92	$	51	$	21	$	17	$	89
Consumer	1	33		—		—		32		32
Total	5	$	125	$	51	$	21	$	49	$	121



	At and for the six months ended June 30, 2018
(Dollars in thousands)	Number of loans restructured	Pre-modification recorded balance		Term Concessions		Interest Rate Concessions		Combination		Total Modifications
Loans secured by real estate:
Residential real estate	5	$	187	$	51	$	21	$	106	$	178
Consumer	1	33		—		—		32		32
Total	6	$	220	$	51	$	21	$	138	$	210



	At and for the three months ended June 30, 2017
(Dollars in thousands)	Number of loans restructured	Pre-modification recorded balance		Term Concessions		Interest Rate Concessions		Combination		Total Modifications
Loans secured by real estate:
Commercial real estate	3	$	2,643	$	2,643	$	—	$	—	$	2,643
Residential real estate	2	41		41		—		—		41
Total real estate	5	2,684		2,684		—		—		2,684
Commercial and industrial	6	8,179		7,661		—		—		7,661
Total	11	$	10,863	$	10,345	$	—	$	—	$	10,345



	At and for the six months ended June 30, 2017
(Dollars in thousands)	Number of loans restructured	Pre-modification recorded balance		Term Concessions		Interest Rate Concessions		Combination		Total Modifications
Loans secured by real estate:
Commercial real estate	3	$	2,643	$	2,643	$	—	$	—	$	2,643
Residential real estate	2	41		41		—		—		41
Total real estate	5	2,684		2,684		—		—		2,684
Commercial and industrial	6	8,179		7,661		—		—		7,661
Total	11	$	10,863	$	10,345	$	—	$	—	$	10,345

Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value of Assets and Liabilities Recorded on a Recurring Basis



	June 30, 2018
(Dollars in thousands)	Level 1		Level 2			Level 3		Total
State and municipal securities	$	—	$	84,209		$	39,761	$	123,970
Corporate bonds	—		3,089			—		3,089
Commercial mortgage-backed securities	—		7,574			—		7,574
Residential mortgage-backed securities	—		163,230			—		163,230
Residential collateralized mortgage obligations	—		209,650			—		209,650
Securities available for sale	—		467,752			39,761		507,513
Securities carried at fair value through income	—		—			11,413		11,413
Loans held for sale	—		32,587			—		32,587
Loans at fair value	—		—			20,872		20,872
Mortgage servicing rights	—		—			25,738		25,738
Other assets - derivatives	—		3,034			—		3,034
Total recurring fair value measurements - assets	$	—	$	503,373		$	97,784	$	601,157

Other liabilities - derivatives	$	—	$	(1,983	)	$	—	$	(1,983	)
Total recurring fair value measurements - liabilities	$	—	$	(1,983	)	$	—	$	(1,983	)



	December 31, 2017
(Dollars in thousands)	Level 1		Level 2			Level 3		Total
State and municipal securities	$	—	$	87,963		$	42,015	$	129,978
Corporate bonds	—		3,136			—		3,136
Residential mortgage-backed securities	—		105,029			—		105,029
Residential collateralized mortgage obligations	—		166,389			—		166,389
Securities available for sale	—		362,517			42,015		404,532
Securities carried at fair value through income	—		—			12,033		12,033
Loans held for sale	—		32,768			—		32,768
Loans at fair value	—		—			26,611		26,611
Mortgage servicing rights	—		—			24,182		24,182
Other assets - derivatives	—		3,146			—		3,146
Total recurring fair value measurements - assets	$	—	$	398,431		$	104,841	$	503,272

Other liabilities - derivatives	$	—	$	(3,320	)	$	—	$	(3,320	)
Total recurring fair value measurements - liabilities	$	—	$	(3,320	)	$	—	$	(3,320	)

Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis

The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the six months ended June 30, 2018 and 2017, are summarized as follows:



(Dollars in thousands)	Loans at Fair Value			MSRs			Securities Available for Sale			Securities at FV Through Income
Balance at January 1, 2018	$	26,611		$	24,182		$	42,015		$	12,033
Gain (loss) recognized in earnings:
Mortgage banking revenue	—			563			—			—
Other noninterest income	(387		)	—			—			(390		)
Gain (loss) recognized in AOCI	—			—			(858		)	—
Purchases, issuances, sales and settlements:
Originations	—			993			—			—
Purchases	—			—			259			—
Settlements	(5,352		)	—			(1,655		)	(230		)
Balance at June 30, 2018	$	20,872		$	25,738		$	39,761		$	11,413

Balance at January 1, 2017	$	33,693		$	29,385		$	43,858		$	12,511
Gain (loss) recognized in earnings:
Mortgage banking revenue	—			(2,969		)	—			—
Other noninterest income	(175		)	—			—			28
Gain (loss) recognized in AOCI	—			—			(55		)	—
Purchases, issuances, sales, and settlements:
Originations	—			1,436			—			—
Purchases	—			—			275			—
Sales	(2,516		)	—			—			—
Settlements	(3,194		)	—			(1,637		)	(220		)
Balance at June 30, 2017	$	27,808		$	27,852		$	42,441		$	12,319

Significant Assumptions Used to Value Mortgage Servicing Rights

The significant assumptions used to value MSRs were as follows:

Difference Between Fair Value and the Unpaid Principal Balance for Financial Instruments for which the Fair Value Option has been Elected and Classification in Income Statement

Changes in the fair value of assets for which the Company elected the fair value option are classified in the income statement line items reflected in the following table



	Three months ended June 30,						Six months ended June 30,
(Dollars in thousands)	2018			2017			2018			2017
Changes in fair value included in noninterest income:
Mortgage banking revenue	$	271		$	(70	)	$	(52	)	$	21
Other income:
Loans at fair value held for investment	(92		)	(9		)	$	(387	)	(175		)
Securities carried at fair value through income	(80		)	125			(390		)	28
Total impact on other income	(172		)	116			(777		)	(147		)
Total fair value option impact on noninterest income⁽¹⁾	$	99		$	46		$	(829	)	$	(126	)

____________________________


⁽¹⁾	The fair value option impact on noninterest income is offset by the derivative gain/loss recognized in noninterest income. Please see Note 6 - Mortgage Banking for more detail.

The following tables summarize the difference between the fair value and the unpaid principal balance for financial instruments for which the fair value option has been elected:



	June 30, 2018
(Dollars in thousands)	Aggregate Fair Value		Aggregate Unpaid Principal Balance		Difference
Loans held for sale⁽¹⁾	$	32,587	$	32,087	$	500
Commercial and industrial loans held for investment⁽²⁾	802		802		—
Commercial real estate loans held for investment⁽²⁾	20,070		19,888		182
Securities carried at fair value through income	11,413		11,688		(275		)
Total	$	64,872	$	64,465	$	407

____________________________


⁽¹⁾	$1.9 million of loans were designated as nonaccrual or past due 90 days or more at June 30, 2018. Of this balance, the Company had guarantees receivable from U.S. Government agencies totaling $1.7 million.


⁽²⁾	There were no commercial and industrial loans or commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or past due 90 days or more at June 30, 2018.



	December 31, 2017
(Dollars in thousands)	Aggregate Fair Value		Aggregate Unpaid Principal Balance		Difference
Loans held for sale⁽¹⁾	$	32,768	$	32,216	$	552
Commercial and industrial loans held for investment⁽²⁾	5,611		5,591		20
Commercial real estate loans held for investment⁽²⁾	21,000		20,451		549
Securities carried at fair value through income	12,033		11,918		115
Total	$	71,412	$	70,176	$	1,236

____________________________


⁽¹⁾	$2.4 million of loans were past due 90 days or more at December 31, 2017. Of this balance, the Company had guarantees receivable from U.S. government agencies totaling $1.8 million.


⁽²⁾	There were no commercial and industrial loans or commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or past due 90 days or more at December 31, 2017.

Carrying Value and Estimated Fair Value of Financial Instruments Not Measured at Fair Value

The carrying value and estimated fair values of financial instruments not recorded at fair value are as follows:



(Dollars in thousands)	June 30, 2018				December 31, 2017
Financial assets:	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Level 1 inputs:
Cash and cash equivalents	$	169,574	$	169,574	$	187,187	$	187,187
Level 2 inputs:
Securities held to maturity	19,731		19,700		20,188		20,265
Non-marketable equity securities held in other financial institutions	25,005		25,005		22,967		22,967
Accrued interest and loan fees receivable	13,016		13,016		10,719		10,719
Level 3 inputs:
Loans held for investment, net⁽¹⁾	3,317,073		3,219,408		3,177,337		3,238,872
Financial liabilities:
Level 2 inputs:
Deposits	3,672,097		3,429,356		3,512,014		3,352,213
FHLB advances and other borrowings	139,092		140,150		144,357		145,330
Junior subordinated debentures	9,631		10,724		9,619		14,132
Accrued interest payable	2,026		2,026		2,424		2,424

____________________________


⁽¹⁾	The Loans held for investment, net does not include loans for which the fair value option had been elected at June 30, 2018, or December 31, 2017, respectively, as these loans are carried at fair value on a recurring basis.

- Definition

Tabular disclosure of the application of the fair value option for measurement and reporting of eligible financial assets and liabilities (as defined), as well as certain other eligible items (as defined) included in the statement of financial position, whether such option is elected for a single eligible item or a group of similar eligible items and is in addition to other disclosures concerning fair value which the company may be required to provide. Such disclosure might be expected to include: (1) for items included in the statement of financial position: (a) for each line item in the statement of financial position that includes an item or items for which the fair value option has been elected, provide the aggregate carrying amount of ineligible items included in each line item in the balance sheet, if any; (b) the difference between the aggregate fair value and the aggregate unpaid principal balance (assuming contractual principal amounts and fair value option elected) of: (i) loans and long-term receivables (other than securities otherwise reported at fair value) and (ii) long-term debt instruments; (c) for loans held as assets for which the fair value option has been elected: (i) the aggregate fair value of loans that are 90 days or more past due, (ii) if the policy is to recognize interest income separately from other changes in fair value, the aggregate fair value of loans in nonaccrual status, and (iii) the difference between the aggregate fair value and the aggregate unpaid principal balance for loans that are 90 days or more past due, in nonaccrual status, or both; (2) for items included in the income statement: (a) the amounts of gains and losses from fair value changes included in earnings and in which line in the income statement those gains and losses are reported whether or not combined with gains and losses from items required to be accounted for at fair value; (b) for loans and other receivables held as assets, the estimated amount of gains or losses included in earnings attributable to changes in instrument-specific credit risk; (c) for liabilities with fair values that have been significantly affected during the reporting period by changes in the instrument-specific credit risk, the estimated amount of gains and losses from fair value changes included in earnings that are attributable to changes in the instrument-specific credit risk; and (3) certain other disclosures as required or determined to be provided.

+ References + Details

Mortgage Banking (Tables)

6 Months Ended

Jun. 30, 2018

Mortgage Banking [Abstract]

Mortgage Banking Operations

The following table presents the Company's revenue from mortgage banking operations:



(Dollars in thousands)	For the three months ended						For the six months ended
Mortgage banking revenue	June 30, 2018			June 30, 2017			June 30, 2018			June 30, 2017
Origination	$	242		$	378		$	452		$	605
Gain on sale of loans held for sale	1,336			3,126			3,360			5,420
Servicing	1,774			2,002			3,611			4,109
Total gross mortgage revenue	3,352			5,506			7,423			10,134
Mortgage derivatives gain (loss)	311			184			(228		)	690
MSR change due to payoffs and paydowns	(1,047		)	(1,138		)	(1,831		)	(2,090		)
MSR and hedge fair value adjustment	(299		)	161			(678		)	71
Gain (loss) on MSR sale⁽¹⁾	—			—			25			—
Mortgage banking revenue	$	2,317		$	4,713		$	4,711		$	8,805

___________________________


⁽¹⁾	Amount shown during the six months ended June 30, 2018, reflects final settlement on a loan servicing portfolio sold during the three months ended December 31, 2017.

Schedule of Activity in Mortgages Servicing Rights (MSRs)

Activity in MSRs was as follows:



	Three months ended June 30,						Six months ended June 30,
(Dollars in thousands)	2018			2017			2018		2017
Balance at beginning of period	$	25,999		$	28,882		$	24,182	$	29,385
Origination of servicing rights	450			808			993		1,436
Change in fair value, including amortization	(711		)	(1,838		)	563		(2,969		)
Balance at end of period	$	25,738		$	27,852		$	25,738	$	27,852

Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Values of Derivative Instruments on the Balance Sheet



	Notional Amounts⁽¹⁾				Fair Values
(Dollars in thousands)	June 30, 2018		December 31, 2017		June 30, 2018			December 31, 2017
Derivatives designated as cash flow hedging instruments:
Interest rate swaps included in other assets	$	10,500	$	10,500	$	284		$	41

Derivatives not designated as hedging instruments:
Interest rate swaps included in other assets	$	120,469	$	132,959	$	1,660		$	2,314
Interest rate swaps included in other liabilities	140,871		159,479		(1,829		)	(3,221		)
Forward commitments to purchase mortgage-backed securities included in other assets (liabilities)	84,000		160,000		369			(50		)
Forward commitments to sell residential mortgage loans included in other assets (liabilities)	48,650		57,400		(154		)	(49		)
Interest rate-lock commitments on residential mortgage loans included in other assets	38,862		37,072		721			791
	$	432,852	$	546,910	$	767		$	(215	)

____________________________


⁽¹⁾	Notional or contractual amounts, which represent the extent of involvement in the derivatives market, are used to determine the contractual cash flows required in accordance with the terms of the agreement. These amounts are typically not exchanged, significantly exceed amounts subject to credit or market risk and are not reflected in the consolidated balance sheets.

Weighted-average Rates Paid and Received for Interest Rate Swaps

The weighted-average rates paid and received for interest rate swaps at June 30, 2018, were as follows:



	Weighted-Average
	Interest Rate Paid		Interest Rate Received
Interest rate swaps:
Cash flow hedges	4.81	%	5.08	%
Non-hedging interest rate swaps - financial institution counterparties	4.61		3.97
Non-hedging interest rate swaps - customer counterparties	3.87		4.50

Gains and Losses Recognized on Derivative Instruments Not Designated as Hedging Instruments

Gains and losses recognized on derivative instruments not designated as hedging instruments are as follows:



(Dollars in thousands)	Three months ended June 30,						Six months ended June 30,
Derivatives not designated as hedging instruments:	2018			2017			2018			2017
Amount of gain (loss) recognized in mortgage banking revenue	$	(545	)	$	50		$	(2,206	)	$	440
Amount of gain (loss) recognized in other non-interest income	215			(55		)	738			211

Stock and Incentive Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-based Compensation Cost Charged to Income

Share-based compensation cost charged to income for the three and six months ended June 30, 2018 and 2017, is presented below:



	Three months ended June 30,				Six months ended June 30,
(Dollars in thousands)	2018		2017		2018		2017
Restricted stock	$	223	$	275	$	417	$	522
Stock options⁽¹⁾	—		—		—		(30		)
Total stock compensation expense	$	223	$	275	$	417	$	492
Related tax benefits recognized in net income	$	47	$	96	$	88	$	172

____________________________


⁽¹⁾	Stock option expense for the six months ended June 30, 2017, included expense reversal related to 5,546 common stock options forfeited during the period. All remaining stock options became fully vested during the first quarter of 2017, with no further expense incurred after February 2017.

Time-vested Award Activity

The following table summarizes the Company's time-vested award activity:



	Six months ended June 30,
	2018				2017
	Shares		Weighted Average Grant-Date Fair Value		Shares		Weighted Average Grant-Date Fair Value
Nonvested shares, January 1,	61,293		$	24.61	84,019		$	24.22
Granted	39,151		35.21		21,290		24.44
Vested	(14,632	)	24.48		(18,532	)	24.18
Forfeited	—		—		(3,524	)	24.09
Nonvested shares, June 30,	85,812		$	29.47	83,253		$	24.29

Stock Option Activity

The table below summarizes the status of the Company's stock options and changes during the six months ended June 30, 2018 and 2017.



(Dollars in thousands, except per share amounts)	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Six months ended June 30, 2017
Outstanding at January 1, 2017	358,638		$	11.37	7.79	$	3,844
Forfeited	(5,546	)	23.89
Outstanding at June 30, 2017	353,092		$	11.17	7.26	$	5,137

Six months ended June 30, 2018
Outstanding at January 1, 2018	319,500		$	10.65	7.07	$	4,840
Outstanding at June 30, 2018	319,500		10.65		6.57	9,677
Exercisable at June 30, 2018	319,500		$	10.65	6.57	$	9,677

Income Taxes (Tables)

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Schedule of Provision for Income Taxes

The provision for income taxes is as follows:



	Three months ended June 30,						Six months ended June 30,
(Dollars in thousands)	2018			2017			2018			2017
Federal income taxes:
Current	$	(138	)	$	(3,303	)	$	2,037		$	(921	)
Deferred	2,658			3,969			3,159			4,019
State income taxes:
Current	268			65			344			226
Deferred	(28		)	42			4			29
Income tax expense	$	2,760		$	773		$	5,544		$	3,353
Effective income tax rate	17.9		%	16.8		%	17.5		%	23.3		%

Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

Accumulated other comprehensive income ("AOCI") includes the after-tax change in unrealized gains and losses on available for sale ("AFS") securities and cash flow hedging activities.



(Dollars in thousands)	Unrealized gains on AFS securities			Cash flow hedges			Accumulated other comprehensive income
Balance at January 1, 2018	$	1,280		$	27		$	1,307
Net change	(5,834		)	193			(5,641		)
Reclassification of tax effects related to the adoption of ASU 2018-02⁽¹⁾:
Current	(293		)	17			(276		)
Deferred	569			(11		)	558
Balance at June 30, 2018	$	(4,278	)	$	226		$	(4,052	)

Balance at January 1, 2017	$	3,505		$	(42	)	$	3,463
Net change	930			(16		)	914
Balance at June 30, 2017	$	4,435		$	(58	)	$	4,377

____________________________

⁽¹⁾

Capital and Regulatory Matters (Tables)

6 Months Ended

Jun. 30, 2018

Banking and Thrift [Abstract]

Actual Capital Amounts and Ratios

The actual capital amounts and ratios of the Company and Bank at June 30, 2018, and December 31, 2017, are presented in the following table:



(Dollars in thousands)	Actual				Minimum Capital Required - Basel III Fully Phased-In				To be Well Capitalized Under Prompt Corrective Action Provisions
June 30, 2018	Amount		Ratio		Amount		Ratio		Amount		Ratio
Common Equity Tier 1 Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	$	496,073	12.35	%	$	281,246	7.00	%	N/A		N/A
Origin Bank	480,656		11.99		280,640		7.00		$	260,594	6.50	%
Tier 1 Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	505,378		12.58		341,512		8.50		N/A		N/A
Origin Bank	480,656		11.99		340,777		8.50		320,731		8.00
Total Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	541,749		13.48		421,867		10.50		N/A		N/A
Origin Bank	517,027		12.90		420,957		10.50		400,911		10.00
Leverage Ratio
Origin Bancorp, Inc.	505,378		11.63		173,801		4.00		N/A		N/A
Origin Bank	480,656		11.11		173,077		4.00		216,346		5.00
December 31, 2017
Common Equity Tier 1 Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	$	360,069	9.35	%	$	269,570	7.00	%	N/A		N/A
Origin Bank	416,175		10.82		269,244		7.00		$	250,012	6.50	%
Tier 1 Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	433,338		11.25		327,411		8.50		N/A		N/A
Origin Bank	416,175		10.82		326,940		8.50		307,708		8.00
Total Capital to Risk-Weighted Assets
Origin Bancorp, Inc.	472,437		12.26		404,616		10.50		N/A		N/A
Origin Bank	455,274		11.84		403,748		10.50		384,522		10.00
Leverage Ratio
Origin Bancorp, Inc.	433,338		10.53		164,611		4.00		N/A		N/A
Origin Bank	416,175		10.13		164,334		4.00		205,418		5.00

Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Off-Balance Sheet Financial Instruments

These off-balance sheet financial instruments are summarized below:



(Dollars in thousands)	June 30, 2018		December 31, 2017
Commitments to extend credit	$	1,140,653	$	1,068,088
Standby letters of credit	82,816		79,893

Significant Accounting Policies (Details)	6 Months Ended
Significant Accounting Policies (Details)	Jun. 30, 2018 USD ($) center	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of banking centers \| center	41
Reclassification from accumulated other comprehensive income	$ 4,052,000		$ (1,307,000)
Reclassification to retained earnings	167,628,000		145,122,000
Reclassification from operating activities	(30,018,000)	$ (34,620,000)
Reclassification to investing activities	$ (247,582,000)	(87,855,000)
Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification from accumulated other comprehensive income			282,000
Reclassification to retained earnings			$ 282,000
Accounting Standards Update 2016-15
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification from operating activities		741,000
Reclassification to investing activities		$ 741,000

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Basic earnings per common share
Net income	$ 12,702	$ 3,823	$ 26,109	$ 11,070
Less: Dividends to preferred stock	808	1,115	1,923	2,230
Net income allocated to participating stockholders	40	102	921	369
Net income available to common stockholders	$ 11,854	$ 2,606	$ 23,265	$ 8,471
Weighted average common shares outstanding (in shares)	22,107,489	19,412,313	20,451,960	19,408,424
Basic earnings per common share ($ per share)	$ 0.54	$ 0.13	$ 1.14	$ 0.44
Diluted earnings per common share
Diluted earnings applicable to common stockholders (in shares)	$ 11,876	$ 2,612	$ 23,318	$ 8,497
Weighted average diluted common shares outstanding
Weighted average common shares outstanding (in shares)	22,107,489	19,412,313	20,451,960	19,408,424
Dilutive effect of common stock options (in shares)	274,514	211,821	274,514	211,745
Weighted average diluted common shares outstanding (in shares)	22,382,003	19,624,134	20,726,474	19,620,169
Diluted earnings per common share ($ per share)	$ 0.53	$ 0.13	$ 1.13	$ 0.43

Securities - Amortized Cost and Estimated Fair Value of Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available for sale
Available for sale, amortized cost	$ 513,047	$ 402,686
Available for sale, gross unrealized gains	2,652	4,994
Available for sale, gross unrealized losses	(8,186)	(3,148)
Available for sale, fair value	507,513	404,532
Held to maturity
Held to maturity, amortized cost	19,731	20,188
Securities held to maturity, fair value	19,700	20,265
Securities carried at fair value through income, amortized cost	11,688	11,918
Securities carried at fair value through income, fair value	11,413	12,033
State and municipal securities
Available for sale
Available for sale, amortized cost	122,007	125,909
Available for sale, gross unrealized gains	2,249	4,104
Available for sale, gross unrealized losses	(286)	(35)
Available for sale, fair value	123,970	129,978
Held to maturity
Held to maturity, amortized cost	19,731	20,188
Held to maturity, gross unrealized gains	0	77
Held to maturity, gross unrealized losses	(31)	0
Securities held to maturity, fair value	19,700	20,265
Corporate bonds
Available for sale
Available for sale, amortized cost	3,000	3,000
Available for sale, gross unrealized gains	89	136
Available for sale, gross unrealized losses	0	0
Available for sale, fair value	3,089	3,136
Commercial mortgage-backed securities
Available for sale
Available for sale, amortized cost	7,580
Available for sale, gross unrealized gains	0
Available for sale, gross unrealized losses	(6)
Available for sale, fair value	7,574
Residential mortgage-backed securities
Available for sale
Available for sale, amortized cost	165,659	105,132
Available for sale, gross unrealized gains	213	492
Available for sale, gross unrealized losses	(2,642)	(595)
Available for sale, fair value	163,230	105,029
Residential collateralized mortgage obligations
Available for sale
Available for sale, amortized cost	214,801	168,645
Available for sale, gross unrealized gains	101	262
Available for sale, gross unrealized losses	(5,252)	(2,518)
Available for sale, fair value	$ 209,650	$ 166,389

Securities - Unrealized Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available for sale
Available for sale, continuous unrealized loss position, less than 12 months, fair value	$ 243,187	$ 118,920
Available for sale, continuous unrealized loss position, less than 12 months, unrealized loss	(4,435)	(844)
Available for sale, continuous unrealized loss position, 12 months or more, fair value	75,602	82,065
Available for sale, continuous unrealized loss position, 12 months or more, unrealized loss	(3,751)	(2,304)
Available for sale, continuous unrealized loss position, fair value	318,789	200,985
Available for sale, continuous unrealized loss position, unrealized loss	(8,186)	(3,148)
State and municipal securities
Available for sale
Available for sale, continuous unrealized loss position, less than 12 months, fair value	17,822	2,114
Available for sale, continuous unrealized loss position, less than 12 months, unrealized loss	(246)	(5)
Available for sale, continuous unrealized loss position, 12 months or more, fair value	1,184	1,210
Available for sale, continuous unrealized loss position, 12 months or more, unrealized loss	(40)	(30)
Available for sale, continuous unrealized loss position, fair value	19,006	3,324
Available for sale, continuous unrealized loss position, unrealized loss	(286)	(35)
Held to maturity
Held to maturity, continuous unrealized loss position, less than 12 months, fair value	14,480	0
Held to maturity, continuous unrealized loss position, less than 12 months, unrealized loss	(31)	0
Held to maturity, continuous unrealized loss position, 12 months or longer, fair value	0	0
Held to maturity, continuous unrealized loss position, 12 months or longer, unrealized loss	0	0
Held to maturity, continuous unrealized loss position, fair value	14,480	0
Held to maturity, continuous unrealized loss position, unrealized loss	(31)	0
Commercial mortgage-backed securities
Available for sale
Available for sale, continuous unrealized loss position, less than 12 months, fair value	7,580
Available for sale, continuous unrealized loss position, less than 12 months, unrealized loss	(6)
Available for sale, continuous unrealized loss position, 12 months or more, fair value	0
Available for sale, continuous unrealized loss position, 12 months or more, unrealized loss	0
Available for sale, continuous unrealized loss position, fair value	7,580
Available for sale, continuous unrealized loss position, unrealized loss	(6)
Residential mortgage-backed securities
Available for sale
Available for sale, continuous unrealized loss position, less than 12 months, fair value	92,554	46,018
Available for sale, continuous unrealized loss position, less than 12 months, unrealized loss	(1,777)	(198)
Available for sale, continuous unrealized loss position, 12 months or more, fair value	18,224	20,233
Available for sale, continuous unrealized loss position, 12 months or more, unrealized loss	(865)	(397)
Available for sale, continuous unrealized loss position, fair value	110,778	66,251
Available for sale, continuous unrealized loss position, unrealized loss	(2,642)	(595)
Residential collateralized mortgage obligations
Available for sale
Available for sale, continuous unrealized loss position, less than 12 months, fair value	125,231	70,788
Available for sale, continuous unrealized loss position, less than 12 months, unrealized loss	(2,406)	(641)
Available for sale, continuous unrealized loss position, 12 months or more, fair value	56,194	60,622
Available for sale, continuous unrealized loss position, 12 months or more, unrealized loss	(2,846)	(1,877)
Available for sale, continuous unrealized loss position, fair value	181,425	131,410
Available for sale, continuous unrealized loss position, unrealized loss	$ (5,252)	$ (2,518)

Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Held to maturity
Held to maturity, due in one year or less, amortized cost	$ 0
Held to maturity, due after one year through five years, amortized cost	14,511
Held to maturity, due after five years through ten years, amortized cost	0
Held to maturity, due after ten years, amortized cost	5,220
Held to maturity, amortized cost	19,731	$ 20,188
Held to maturity, due in one year or less, fair value	0
Held to maturity, due after one year through five years, fair value	14,480
Held to maturity, due after five years through ten years, fair value	0
Held to maturity, due after ten years, fair value	5,220
Securities held to maturity, fair value	19,700	20,265
Available for sale
Available for sale, due in one year or less, amortized cost	2,721
Available for sale, due after one year through five years, amortized cost	27,425
Available for sale, due after five years through ten years, amortized cost	83,686
Available for sale, due after ten years, amortized cost	11,175
Available for sale, amortized cost	513,047	402,686
Available for sale, due in one year or less, fair value	2,729
Available for sale, due after one year through five years, fair value	27,868
Available for sale, due after five years through ten years, fair value	85,020
Available for sale, due after ten years, fair value	11,442
Available for sale, fair value	507,513	404,532
Residential mortgage-backed securities
Held to maturity
Held to maturity, without single maturity date, amortized cost	0
Held to maturity, without single maturity date, fair value	0
Available for sale
Available for sale, without single maturity date, amortized cost	165,659
Available for sale, amortized cost	165,659	105,132
Available for sale, without single maturity date, fair value	163,230
Available for sale, fair value	163,230	105,029
Commercial mortgage-backed securities
Held to maturity
Held to maturity, without single maturity date, amortized cost	0
Held to maturity, without single maturity date, fair value	0
Available for sale
Available for sale, without single maturity date, amortized cost	7,580
Available for sale, amortized cost	7,580
Available for sale, without single maturity date, fair value	7,574
Available for sale, fair value	7,574
Residential collateralized mortgage obligations
Held to maturity
Held to maturity, without single maturity date, amortized cost	0
Held to maturity, without single maturity date, fair value	0
Available for sale
Available for sale, without single maturity date, amortized cost	214,801
Available for sale, amortized cost	214,801	168,645
Available for sale, without single maturity date, fair value	209,650
Available for sale, fair value	$ 209,650	$ 166,389

Securities - Securities Pledged as Collateral (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Carrying value of securities pledged to secure public deposits
Schedule of Held-to-maturity Securities [Line Items]
Securities pledged as collateral	$ 288,417	$ 276,319
Carrying value of securities pledged to repurchase agreements
Schedule of Held-to-maturity Securities [Line Items]
Securities pledged as collateral	$ 37,575	$ 36,685

Loans - Schedule of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable Disclosure [Line Items]
Loans held for sale	$ 62,072		$ 65,343
Loans held for investment	3,372,096		3,241,031
Less: Allowance for loan losses	34,151	$ 34,132	37,083	$ 41,634	$ 51,615	$ 50,531
Net loans held for investment	3,337,945		3,203,948
Net deferred loan fees	1,700		1,000
Real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	2,035,466		1,976,262
Real estate \| Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	1,091,581		1,083,275
Less: Allowance for loan losses	9,768	10,144	8,998	9,201	8,716	8,718
Real estate \| Construction/land/land development
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	380,869		322,404
Less: Allowance for loan losses	3,153	2,707	2,950	3,086	2,739	2,805
Real estate \| Residential real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	563,016		570,583
Less: Allowance for loan losses	5,468	5,471	5,807	7,363	5,883	5,003
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	1,046,488		989,220
Less: Allowance for loan losses	15,299	15,337	18,831	21,347	33,805	33,590
Mortgage warehouse lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	270,494		255,044
Less: Allowance for loan losses	203	158	214	303	128	139
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	19,648		20,505
Less: Allowance for loan losses	$ 260	$ 315	$ 283	$ 334	$ 344	$ 276

Loans (Details)	6 Months Ended
Loans (Details)	Jun. 30, 2018 USD ($) loan	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment at fair value	$ 20,872,000		$ 26,611,000
Amount committed to advance in connection with impaired loans	631,000
Nonaccrual mortgage loans held for sale recorded at fair value	$ 1,900,000		0
Number of loans that defaulted \| loan	2
Nonperforming Financial Instruments
Loans and Leases Receivable Disclosure [Line Items]
Interest income	$ 651,000	$ 1,800,000
Outstanding principal balance	68,000
Real estate \| Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment at fair value	20,100,000		21,000,000
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment at fair value	$ 802,000		$ 5,600,000

Loans - Loan Portfolio Aging Analysis (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 13,112	$ 41,272
Current loans	3,358,984	3,199,759
Loans held for investment	3,372,096	3,241,031
Accruing loans 90 or more days past due	0	0
30-59 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	6,409	14,240
60-89 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,653	13,360
Loans past due 90 days or more
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	5,050	13,672
Real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	10,418	21,379
Current loans	2,025,048	1,954,883
Loans held for investment	2,035,466	1,976,262
Accruing loans 90 or more days past due	0	0
Real estate \| 30-59 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,925	12,545
Real estate \| 60-89 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,599	3,310
Real estate \| Loans past due 90 days or more
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	4,894	5,524
Real estate \| Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,972	12,368
Current loans	1,089,609	1,070,907
Loans held for investment	1,091,581	1,083,275
Accruing loans 90 or more days past due	0	0
Real estate \| Commercial real estate \| 30-59 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,121	8,427
Real estate \| Commercial real estate \| 60-89 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	25	2,791
Real estate \| Commercial real estate \| Loans past due 90 days or more
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	826	1,150
Real estate \| Construction/land/land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,113	2,124
Current loans	378,756	320,280
Loans held for investment	380,869	322,404
Accruing loans 90 or more days past due	0	0
Real estate \| Construction/land/land development \| 30-59 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,404	1,488
Real estate \| Construction/land/land development \| 60-89 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	172
Real estate \| Construction/land/land development \| Loans past due 90 days or more
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	709	464
Real estate \| Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	6,333	6,887
Current loans	556,683	563,696
Loans held for investment	563,016	570,583
Accruing loans 90 or more days past due	0	0
Real estate \| Residential real estate \| 30-59 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,400	2,630
Real estate \| Residential real estate \| 60-89 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,574	347
Real estate \| Residential real estate \| Loans past due 90 days or more
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,359	3,910
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,246	19,513
Current loans	1,044,242	969,707
Loans held for investment	1,046,488	989,220
Accruing loans 90 or more days past due	0	0
Commercial and industrial \| 30-59 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,088	1,517
Commercial and industrial \| 60-89 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	20	9,922
Commercial and industrial \| Loans past due 90 days or more
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	138	8,074
Mortgage warehouse lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Current loans	270,494	255,044
Loans held for investment	270,494	255,044
Accruing loans 90 or more days past due	0	0
Mortgage warehouse lines of credit \| 30-59 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Mortgage warehouse lines of credit \| 60-89 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Mortgage warehouse lines of credit \| Loans past due 90 days or more
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	0	0
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	448	380
Current loans	19,200	20,125
Loans held for investment	19,648	20,505
Accruing loans 90 or more days past due	0	0
Consumer \| 30-59 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	396	178
Consumer \| 60-89 Days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	34	128
Consumer \| Loans past due 90 days or more
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 18	$ 74

Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 34,132	$ 51,615	$ 37,083	$ 50,531
Charge-offs	794	12,553	2,532	13,402
Recoveries	673	370	1,018	566
Provision (Benefit)	140	2,202	(1,400)	3,939
Ending Balance	34,151	41,634	34,151	41,634
Provision (benefit) for credit losses	311	1,953	(1,213)	4,767
Provision for off-balance sheet commitments	171	249	205	829
Real estate \| Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	10,144	8,716	8,998	8,718
Charge-offs	0	0	9	0
Recoveries	89	74	216	76
Provision (Benefit)	(465)	411	563	407
Ending Balance	9,768	9,201	9,768	9,201
Real estate \| Construction/land/land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,707	2,739	2,950	2,805
Charge-offs	0	0	0	0
Recoveries	0	1	1	3
Provision (Benefit)	446	346	202	278
Ending Balance	3,153	3,086	3,153	3,086
Real estate \| Residential real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,471	5,883	5,807	5,003
Charge-offs	0	7	9	20
Recoveries	30	40	49	77
Provision (Benefit)	(33)	1,447	(379)	2,303
Ending Balance	5,468	7,363	5,468	7,363
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	15,337	33,805	18,831	33,590
Charge-offs	766	12,437	2,469	13,149
Recoveries	546	235	720	365
Provision (Benefit)	182	(256)	(1,783)	541
Ending Balance	15,299	21,347	15,299	21,347
Mortgage warehouse lines of credit
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	158	128	214	139
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Benefit)	45	175	(11)	164
Ending Balance	203	303	203	303
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	315	344	283	276
Charge-offs	28	109	45	233
Recoveries	8	20	32	45
Provision (Benefit)	(35)	79	(10)	246
Ending Balance	$ 260	$ 334	$ 260	$ 334

Loans - Impaired Loans Evaluated Individually and Collectively (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Period end allowance allocated to loans individually evaluated for impairment		$ 4,807
Period end allowance allocated to loans collectively evaluated for impairment		32,276
Period end loan balance individually evaluated for impairment		39,658
Period end loan balance collectively evaluated for impairment		3,174,762
Loans held for investment at fair value	$ 20,872	26,611
Real estate \| Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Period end allowance allocated to loans individually evaluated for impairment	1,183	312
Period end allowance allocated to loans collectively evaluated for impairment	8,585	8,686
Period end loan balance individually evaluated for impairment	10,040	4,945
Period end loan balance collectively evaluated for impairment	1,061,471	1,057,330
Loans held for investment at fair value	20,100	21,000
Real estate \| Construction/land/land development
Financing Receivable, Allowance for Credit Losses [Line Items]
Period end allowance allocated to loans individually evaluated for impairment	4	4
Period end allowance allocated to loans collectively evaluated for impairment	3,149	2,946
Period end loan balance individually evaluated for impairment	1,315	1,963
Period end loan balance collectively evaluated for impairment	379,554	320,441
Real estate \| Residential real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Period end allowance allocated to loans individually evaluated for impairment	115	72
Period end allowance allocated to loans collectively evaluated for impairment	5,353	5,735
Period end loan balance individually evaluated for impairment	7,994	7,915
Period end loan balance collectively evaluated for impairment	555,022	562,668
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Period end allowance allocated to loans individually evaluated for impairment	1,550	4,356
Period end allowance allocated to loans collectively evaluated for impairment	13,749	14,475
Period end loan balance individually evaluated for impairment	12,783	24,598
Period end loan balance collectively evaluated for impairment	1,032,903	959,011
Loans held for investment at fair value	802	5,600
Mortgage warehouse lines of credit
Financing Receivable, Allowance for Credit Losses [Line Items]
Period end allowance allocated to loans individually evaluated for impairment	0	0
Period end allowance allocated to loans collectively evaluated for impairment	203	214
Period end loan balance individually evaluated for impairment	0	0
Period end loan balance collectively evaluated for impairment	270,494	255,044
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Period end allowance allocated to loans individually evaluated for impairment	49	63
Period end allowance allocated to loans collectively evaluated for impairment	211	220
Period end loan balance individually evaluated for impairment	275	237
Period end loan balance collectively evaluated for impairment	$ 19,373	$ 20,268

Loans - Impaired Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal balance	$ 36,442	$ 43,810
Recorded investment with no allowance	16,134	16,647
Recorded investment with an allowance	16,273	23,011
Total recorded investment	32,407	39,658
Allocation of allowance for loan losses	2,901	4,807
Real estate
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal balance	22,796	18,339
Recorded investment with no allowance	10,854	10,345
Recorded investment with an allowance	8,495	4,478
Total recorded investment	19,349	14,823
Allocation of allowance for loan losses	1,302	388
Real estate \| Commercial real estate
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal balance	10,968	6,047
Recorded investment with no allowance	2,477	1,782
Recorded investment with an allowance	7,563	3,163
Total recorded investment		4,945
Allocation of allowance for loan losses		312
Real estate \| Construction/land/land development
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal balance	1,655	2,268
Recorded investment with no allowance	1,168	1,813
Recorded investment with an allowance	147	150
Total recorded investment		1,963
Allocation of allowance for loan losses		4
Real estate \| Residential real estate
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal balance	10,173	10,024
Recorded investment with no allowance	7,209	6,750
Recorded investment with an allowance	785	1,165
Total recorded investment		7,915
Allocation of allowance for loan losses		72
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal balance	13,353	25,212
Recorded investment with no allowance	5,095	6,161
Recorded investment with an allowance	7,688	18,437
Total recorded investment		24,598
Allocation of allowance for loan losses		4,356
Consumer
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal balance	293	259
Recorded investment with no allowance	185	141
Recorded investment with an allowance	$ 90	96
Total recorded investment		237
Allocation of allowance for loan losses		$ 63

Loans - Average Recorded Investment and Interest Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 32,476	$ 55,669	$ 35,269	$ 49,976
Interest Income Recognized	85	153	198	210
Real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	19,004	18,511	19,211	16,504
Interest Income Recognized	28	58	90	100
Real estate \| Commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	10,093	7,869	9,942	5,918
Interest Income Recognized	15	39	43	61
Real estate \| Construction/land/land development
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,368	858	1,650	871
Interest Income Recognized	2	2	11	5
Real estate \| Residential real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	7,543	9,784	7,619	9,715
Interest Income Recognized	11	17	36	34
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	13,198	36,952	15,792	33,267
Interest Income Recognized	56	94	105	107
Consumer
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	274	206	266	205
Interest Income Recognized	$ 1	$ 1	$ 3	$ 3

Loans - Non Performing (Nonaccrual) Loans Held For Investment (Details) - Nonperforming Financial Instruments - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Total nonaccrual loans	$ 26,793	$ 23,802
Real estate
Financing Receivable, Recorded Investment [Line Items]
Total nonaccrual loans	17,622	10,008
Real estate \| Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total nonaccrual loans	8,712	1,745
Real estate \| Construction/land/land development
Financing Receivable, Recorded Investment [Line Items]
Total nonaccrual loans	1,197	1,097
Real estate \| Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Total nonaccrual loans	7,713	7,166
Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Total nonaccrual loans	8,831	13,512
Consumer
Financing Receivable, Recorded Investment [Line Items]
Total nonaccrual loans	$ 340	$ 282

Loans - Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Modifications [Line Items]
Loans classified as troubled debt restructurings	$ 7,823	$ 16,856
Nonaccrual TDRs
Financing Receivable, Modifications [Line Items]
Loans classified as troubled debt restructurings	1,984	2,622
Performing TDRs
Financing Receivable, Modifications [Line Items]
Loans classified as troubled debt restructurings	$ 5,839	$ 14,234

Loans - Pre and Post Modification Balances of TDR (Details) - Nonperforming Financial Instruments $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($) loan	Jun. 30, 2017 USD ($) loan	Jun. 30, 2018 USD ($) loan	Jun. 30, 2017 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of loans restructured \| loan	5	11	6	11
Pre-modification recorded balance	$ 125	$ 10,863	$ 220	$ 10,863
Total Modifications	$ 121	$ 10,345	$ 210	$ 10,345
Real estate
Financing Receivable, Modifications [Line Items]
Number of loans restructured \| loan		5		5
Pre-modification recorded balance		$ 2,684		$ 2,684
Total Modifications		$ 2,684		$ 2,684
Real estate \| Commercial real estate
Financing Receivable, Modifications [Line Items]
Number of loans restructured \| loan		3		3
Pre-modification recorded balance		$ 2,643		$ 2,643
Total Modifications		$ 2,643		$ 2,643
Real estate \| Residential real estate
Financing Receivable, Modifications [Line Items]
Number of loans restructured \| loan	4	2	5	2
Pre-modification recorded balance	$ 92	$ 41	$ 187	$ 41
Total Modifications	$ 89	$ 41	$ 178	$ 41
Consumer
Financing Receivable, Modifications [Line Items]
Number of loans restructured \| loan	1		1
Pre-modification recorded balance	$ 33		$ 33
Total Modifications	32		32
Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of loans restructured \| loan		6		6
Pre-modification recorded balance		$ 8,179		$ 8,179
Total Modifications		7,661		7,661
Term Concessions
Financing Receivable, Modifications [Line Items]
Total Modifications	51	10,345	51	10,345
Term Concessions \| Real estate
Financing Receivable, Modifications [Line Items]
Total Modifications		2,684		2,684
Term Concessions \| Real estate \| Commercial real estate
Financing Receivable, Modifications [Line Items]
Total Modifications		2,643		2,643
Term Concessions \| Real estate \| Residential real estate
Financing Receivable, Modifications [Line Items]
Total Modifications	51	41	51	41
Term Concessions \| Consumer
Financing Receivable, Modifications [Line Items]
Total Modifications	0		0
Term Concessions \| Commercial and industrial
Financing Receivable, Modifications [Line Items]
Total Modifications		7,661		7,661
Interest Rate Concessions
Financing Receivable, Modifications [Line Items]
Total Modifications	21	0	21	0
Interest Rate Concessions \| Real estate
Financing Receivable, Modifications [Line Items]
Total Modifications		0		0
Interest Rate Concessions \| Real estate \| Commercial real estate
Financing Receivable, Modifications [Line Items]
Total Modifications		0		0
Interest Rate Concessions \| Real estate \| Residential real estate
Financing Receivable, Modifications [Line Items]
Total Modifications	21	0	21	0
Interest Rate Concessions \| Consumer
Financing Receivable, Modifications [Line Items]
Total Modifications	0		0
Interest Rate Concessions \| Commercial and industrial
Financing Receivable, Modifications [Line Items]
Total Modifications		0		0
Combination
Financing Receivable, Modifications [Line Items]
Total Modifications	49	0	138	0
Combination \| Real estate
Financing Receivable, Modifications [Line Items]
Total Modifications		0		0
Combination \| Real estate \| Commercial real estate
Financing Receivable, Modifications [Line Items]
Total Modifications		0		0
Combination \| Real estate \| Residential real estate
Financing Receivable, Modifications [Line Items]
Total Modifications	17	0	106	0
Combination \| Consumer
Financing Receivable, Modifications [Line Items]
Total Modifications	$ 32		$ 32
Combination \| Commercial and industrial
Financing Receivable, Modifications [Line Items]
Total Modifications		$ 0		$ 0

Fair Value of Financial Instruments - Fair Value of Assets and Liabilities Recorded on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	$ 507,513		$ 404,532
Securities carried at fair value through income	11,413		12,033
Loans held for sale	32,587		32,768
Loans at fair value	20,872		26,611
Mortgage servicing rights	25,738	$ 25,999	24,182	$ 27,852	$ 28,882	$ 29,385
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	507,513		404,532
Securities carried at fair value through income	11,413		12,033
Loans held for sale	32,587		32,768
Loans at fair value	20,872		26,611
Mortgage servicing rights	25,738		24,182
Other assets - derivatives	3,034		3,146
Total recurring fair value measurements - assets	601,157		503,272
Other liabilities - derivatives	(1,983)		(3,320)
Total recurring fair value measurements - liabilities	(1,983)		(3,320)
Fair Value, Measurements, Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0		0
Securities carried at fair value through income	0		0
Loans held for sale	0		0
Loans at fair value	0		0
Mortgage servicing rights	0		0
Other assets - derivatives	0		0
Total recurring fair value measurements - assets	0		0
Other liabilities - derivatives	0		0
Total recurring fair value measurements - liabilities	0		0
Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	467,752		362,517
Securities carried at fair value through income	0		0
Loans held for sale	32,587		32,768
Loans at fair value	0		0
Mortgage servicing rights	0		0
Other assets - derivatives	3,034		3,146
Total recurring fair value measurements - assets	503,373		398,431
Other liabilities - derivatives	(1,983)		(3,320)
Total recurring fair value measurements - liabilities	(1,983)		(3,320)
Fair Value, Measurements, Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	39,761		42,015
Securities carried at fair value through income	11,413		12,033
Loans held for sale	0		0
Loans at fair value	20,872		26,611
Mortgage servicing rights	25,738		24,182
Other assets - derivatives	0		0
Total recurring fair value measurements - assets	97,784		104,841
Other liabilities - derivatives	0		0
Total recurring fair value measurements - liabilities	0		0
State and municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	123,970		129,978
State and municipal securities \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	123,970		129,978
State and municipal securities \| Fair Value, Measurements, Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0		0
State and municipal securities \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	84,209		87,963
State and municipal securities \| Fair Value, Measurements, Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	39,761		42,015
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	3,089		3,136
Corporate bonds \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	3,089		3,136
Corporate bonds \| Fair Value, Measurements, Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0		0
Corporate bonds \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	3,089		3,136
Corporate bonds \| Fair Value, Measurements, Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0		0
Commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	7,574
Commercial mortgage-backed securities \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	7,574
Commercial mortgage-backed securities \| Fair Value, Measurements, Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0
Commercial mortgage-backed securities \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	7,574
Commercial mortgage-backed securities \| Fair Value, Measurements, Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0
Residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	163,230		105,029
Residential mortgage-backed securities \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	163,230		105,029
Residential mortgage-backed securities \| Fair Value, Measurements, Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0		0
Residential mortgage-backed securities \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	163,230		105,029
Residential mortgage-backed securities \| Fair Value, Measurements, Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0		0
Residential collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	209,650		166,389
Residential collateralized mortgage obligations \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	209,650		166,389
Residential collateralized mortgage obligations \| Fair Value, Measurements, Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	0		0
Residential collateralized mortgage obligations \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	209,650		166,389
Residential collateralized mortgage obligations \| Fair Value, Measurements, Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale	$ 0		$ 0

Fair Value of Financial Instruments - Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Loans at Fair Value
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	$ 26,611	$ 33,693
Gain (loss) recognized in AOCI	0	0
Purchases, issuances, sales and settlements
Originations	0	0
Purchases	0	0
Sales		(2,516)
Settlements	(5,352)	(3,194)
Balance at end of period	20,872	27,808
Loans at Fair Value \| Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	0	0
Loans at Fair Value \| Other noninterest income
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	(387)	(175)
MSRs
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	24,182	29,385
Gain (loss) recognized in AOCI	0	0
Purchases, issuances, sales and settlements
Originations	993	1,436
Purchases	0	0
Sales		0
Settlements	0	0
Balance at end of period	25,738	27,852
MSRs \| Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	563	(2,969)
MSRs \| Other noninterest income
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	0	0
Securities Available for Sale
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	42,015	43,858
Gain (loss) recognized in AOCI	(858)	(55)
Purchases, issuances, sales and settlements
Originations	0	0
Purchases	259	275
Sales		0
Settlements	(1,655)	(1,637)
Balance at end of period	39,761	42,441
Securities Available for Sale \| Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	0	0
Securities Available for Sale \| Other noninterest income
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	0	0
Securities carried at fair value through income
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	12,033	12,511
Gain (loss) recognized in AOCI	0	0
Purchases, issuances, sales and settlements
Originations	0	0
Purchases	0	0
Sales		0
Settlements	(230)	(220)
Balance at end of period	11,413	12,319
Securities carried at fair value through income \| Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	0	0
Securities carried at fair value through income \| Other noninterest income
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	$ (390)	$ 28

Fair Value of Financial Instruments - Assumptions Used to Value Mortgage Servicing Rights (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Prepayment speed	8.04%	10.80%
Discount rate	9.58%	9.33%

Fair Value of Financial Instruments - Difference Between Fair Value and Unpaid Principal Balance (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans held for sale	$ 32,587,000	$ 32,768,000
Aggregate Fair Value	64,872,000	71,412,000
Aggregate Unpaid Principal Balance	64,465,000	70,176,000
Difference	407,000	1,236,000
Loans for which the fair value had been elected that were designated as nonaccrual or past due 90 days or more	0	0
Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value		32,768,000
Aggregate Unpaid Principal Balance	32,087,000	32,216,000
Difference	500,000	552,000
Loans, 90 days or more past due	1,900,000	2,400,000
Commercial and industrial loans held for investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	802,000	5,611,000
Aggregate Unpaid Principal Balance	802,000	5,591,000
Difference	0	20,000
Commercial real estate loans held for investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	20,070,000	21,000,000
Aggregate Unpaid Principal Balance	19,888,000	20,451,000
Difference	182,000	549,000
Securities carried at fair value through income
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	11,413,000	12,033,000
Aggregate Unpaid Principal Balance	11,688,000	11,918,000
Difference	(275,000)	115,000
US Government Agencies Debt Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans, 90 days or more past due	$ 1,700,000	$ 1,800,000

Fair Value of Financial Instruments - Changes in Fair Value of Assets Classified in the Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Mortgage banking revenue
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Fair value option impact on noninterest income	$ 271	$ (70)	$ (52)	$ 21
Other income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Fair value option impact on noninterest income	(172)	116	(777)	(147)
Noninterest income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Fair value option impact on noninterest income	99	46	(829)	(126)
Loans at fair value held for investment \| Other income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Fair value option impact on noninterest income	(92)	(9)	(387)	(175)
Securities carried at fair value through income \| Other income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Fair value option impact on noninterest income	$ (80)	$ 125	$ (390)	$ 28

Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities without readily determinable fair value	$ 25,000
Liability to repurchase past due GNMA loans	29,500	$ 32,600
Fair value of impaired loans	32,407	39,658
Real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of impaired loans	19,349	14,823
Fair Value, Measurements, Nonrecurring \| Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of impaired loans	13,400	18,200
Foreclosed assets	654	$ 499
Residential real estate \| Fair Value, Measurements, Nonrecurring \| Fair Value, Inputs, Level 3 \| Real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans in the process of foreclosure	$ 294
Minimum \| Measurement Input, Credit Spread
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit spread, securities at fair value through income	1.26%	1.26%
Credit spread, loans held-for-investment	2.90%	2.83%
Maximum \| Measurement Input, Credit Spread
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit spread, securities at fair value through income	2.27%	2.27%
Credit spread, loans held-for-investment	4.13%	4.13%

Fair Value of Financial Instruments - Carrying Value and Estimated Fair Values of Financial Instruments Not Measured at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	$ 19,700	$ 20,265
Loans held for investment at fair value	20,872	26,611
Fair Value, Measurements, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment at fair value	20,872	26,611
Level 1 \| Fair Value, Measurements, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment at fair value	0	0
Level 2 \| Fair Value, Measurements, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment at fair value	0	0
Level 3 \| Fair Value, Measurements, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment at fair value	20,872	26,611
Carrying Value \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	169,574	187,187
Carrying Value \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	19,731	20,188
Non-marketable equity securities held in other financial institutions	25,005	22,967
Accrued interest and loan fees receivable	13,016	10,719
Deposits	3,672,097	3,512,014
FHLB advances and other borrowings	139,092	144,357
Junior subordinated debentures	9,631	9,619
Accrued interest payable	2,026	2,424
Carrying Value \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment, net	3,317,073	3,177,337
Estimated Fair Value \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	169,574	187,187
Estimated Fair Value \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity		20,265
Non-marketable equity securities held in other financial institutions	25,005	22,967
Accrued interest and loan fees receivable	13,016	10,719
Deposits	3,429,356	3,352,213
FHLB advances and other borrowings	140,150	145,330
Junior subordinated debentures	10,724	14,132
Accrued interest payable	2,026	2,424
Estimated Fair Value \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment, net	$ 3,219,408	$ 3,238,872

Mortgage Banking - Mortgage Banking Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Mortgage Banking [Abstract]
Origination	$ 242	$ 378	$ 452	$ 605
Gain on sale of loans held for sale	1,336	3,126	3,360	5,420
Servicing	1,774	2,002	3,611	4,109
Total gross mortgage revenue	3,352	5,506	7,423	10,134
Mortgage derivatives gain (loss)	311	184	(228)	690
MSR change due to payoffs and paydowns	(1,047)	(1,138)	(1,831)	(2,090)
MSR and hedge fair value adjustment	(299)	161	(678)	71
Gain (loss) on MSR sale	0	0	25	0
Mortgage banking revenue	$ 2,317	$ 4,713	$ 4,711	$ 8,805

Mortgage Banking - Activity in Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	$ 25,999	$ 28,882	$ 24,182	$ 29,385
Origination of servicing rights	(450)	(808)	(993)	(1,436)
Change in fair value, including amortization	(711)	(1,838)	563	(2,969)
Balance at end of period	$ 25,738	$ 27,852	$ 25,738	$ 27,852

Mortgage Banking - Assumptions Used to Value Mortgage Servicing Rights (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Mortgage Banking [Abstract]
Prepayment speed	8.04%	10.80%
Discount rate	9.58%	9.33%

Mortgage Banking (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Mortgage Banking (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Mortgage Banking [Abstract]
Annual servicing fee income rate			0.28%
Mortgage loan servicing putback expenses	$ 0	$ 33	$ 0	$ 52
Reserve for mortgage loan servicing putback expenses	196		196		$ 254
Liability to repurchase past due GNMA loans	$ 29,500		$ 29,500		$ 32,600

Derivative Financial Instruments Fair Value of Derivative Instruments on the Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Notional Amount	$ 432,852	$ 546,910
Fair value	767	(215)
Interest Rate Swap \| Not Designated as Hedging Instrument \| Other Assets
Derivatives, Fair Value [Line Items]
Notional Amount	120,469	132,959
Fair value	1,660	2,314
Interest Rate Swap \| Not Designated as Hedging Instrument \| Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	140,871	159,479
Fair value	(1,829)	(3,221)
Forward Commitment to Purchase \| Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Notional Amount	84,000	160,000
Fair value	369	(50)
Forward Commitment to Sell \| Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Notional Amount	48,650	57,400
Fair value	(154)	(49)
Interest Rate Lock Commitments \| Not Designated as Hedging Instrument \| Other Assets
Derivatives, Fair Value [Line Items]
Notional Amount	38,862	37,072
Fair value	721	791
Cash Flow Hedging \| Interest Rate Swap \| Designated as Hedging Instrument \| Other Assets
Derivatives, Fair Value [Line Items]
Notional Amount	10,500	10,500
Fair value	$ 284	$ 41

Derivative Financial Instruments Weighted-average Rates Paid and Received (Details) - Interest Rate Swap	Jun. 30, 2018
Designated as Hedging Instrument \| Interest Rate Paid
Derivative [Line Items]
Weighted-average rates	4.81%
Designated as Hedging Instrument \| Interest Rate Received
Derivative [Line Items]
Weighted-average rates	5.08%
Financial Institution \| Not Designated as Hedging Instrument \| Interest Rate Paid
Derivative [Line Items]
Weighted-average rates	4.61%
Financial Institution \| Not Designated as Hedging Instrument \| Interest Rate Received
Derivative [Line Items]
Weighted-average rates	3.97%
Customer \| Not Designated as Hedging Instrument \| Interest Rate Paid
Derivative [Line Items]
Weighted-average rates	3.87%
Customer \| Not Designated as Hedging Instrument \| Interest Rate Received
Derivative [Line Items]
Weighted-average rates	4.50%

Derivative Financial Instruments Gains and Losses Recognized on Derivative Instruments Not Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives not designated as hedging instruments	$ (545)	$ 50	$ (2,206)	$ 440
Noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives not designated as hedging instruments	$ 215	$ (55)	$ 738	$ 211

Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash collateral on deposit	$ 250	$ 7,000

Stock and Incentive Compensation Plans (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Outstanding stock options term (does not exceed)		20 years
Stock options granted (in shares)	0	0
Stock options exercised (in shares)	0	0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Shares surrendered to cover taxes owed upon the vesting of restricted stock awards (in shares)		2,187	3,553
Unrecognized compensation cost		$ 2.1
Unrecognized compensation cost weighted average period for recognition		2 years 2 months 1 day
2012 Plan
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Maximum number of common stock available for issuance (in shares)		1,098,521
Minimum
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Vesting period from the date of grant or merger		0 years
Minimum \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Service period in which time-vested awards are earned		1 year
Maximum
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Vesting period from the date of grant or merger		10 years
Maximum \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Service period in which time-vested awards are earned		5 years

Stock and Incentive Compensation Plans - Share-based Compensation Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock compensation expense	$ 223	$ 275	$ 417	$ 492
Related tax benefits recognized in net income	47	96	88	$ 172
Common stock options forfeited (in shares)				5,546
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock compensation expense	223	275	417	$ 522
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock compensation expense	$ 0	$ 0	$ 0	$ (30)

Stock and Incentive Compensation Plans - Time-vested Award Activity (Details) - Restricted Stock - $ / shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Shares
Novested shares, beginning balance (in shares)	61,293	84,019
Granted (in shares)	39,151	21,290
Vested (in shares)	(14,632)	(18,532)
Forfeited (in shares)	0	(3,524)
Novested shares, ending balance (in shares)	85,812	83,253
Weighted Average Grant-Date Fair Value
Nonvested shares, weighted average grant-date fair value, ending balance ($ per share)	$ 24.61	$ 24.22
Granted, weighted average grant-date fair value ($ per share)	35.21	24.44
Vested, weighted average grant-date fair value ($ per share)	24.48	24.18
Forfeited, weighted average grant-date fair value ($ per share)	0.00	24.09
Nonvested shares, weighted average grant-date fair value, beginning balance ($ per share)	$ 29.47	$ 24.29

Stock and Incentive Compensation Plans - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Number of Shares
Outstanding, beginning of period (in shares)	319,500	358,638	358,638
Forfeited (in shares)		(5,546)
Outstanding, end of period (in shares)	319,500	353,092	319,500	358,638
Exercisable (in shares)	319,500
Weighted Average Exercise Price
Outstanding, beginning of period ($ per share)	$ 10.65	$ 11.37	$ 11.37
Forfeited ($ per share)		23.89
Outstanding, end of period ($ per share)	10.65	$ 11.17	$ 10.65	$ 11.37
Exercisable, end ($ per share)	$ 10.65
Weighted average remaining contractual term (in years)	6 years 6 months 25 days	7 years 3 months 4 days	7 years 26 days	7 years 9 months 15 days
Weighted average remaining contractual term, exercisable (in years)	6 years 6 months 25 days
Aggregate intrinsic value	$ 9,677	$ 5,137	$ 4,840	$ 3,844
Aggregate intrinsic value, exercisable	$ 9,677

Income Taxes Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Federal income taxes
Current	$ (138)	$ (3,303)	$ 2,037	$ (921)
Deferred	2,658	3,969	3,159	4,019
State income taxes
Current	268	65	344	226
Deferred	(28)	42	4	29
Income tax expense	$ 2,760	$ 773	$ 5,544	$ 3,353
Effective income tax rate	17.90%	16.80%	17.50%	23.30%

Income Taxes (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification from accumulated other comprehensive income	$ 4,052,000	$ (1,307,000)
Reclassification to retained earnings	$ 167,628,000	145,122,000
Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification from accumulated other comprehensive income		282,000
Reclassification to retained earnings		$ 282,000

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance			$ 420,351	$ 420,093
Net change	$ (1,293)	$ 615	(5,641)	914
Stockholders' equity, ending balance	519,356	428,323	519,356	428,323
Unrealized gains on AFS securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance			1,280	3,505
Net change			(5,834)	930
Reclassification of tax effects related to the adoption of ASU 2018-02, current			(293)
Reclassification of tax effects related to the adoption of ASU 2018-02, deferred			569
Stockholders' equity, ending balance	(4,278)	4,435	(4,278)	4,435
Cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance			27	(42)
Net change			193	(16)
Reclassification of tax effects related to the adoption of ASU 2018-02, current			17
Reclassification of tax effects related to the adoption of ASU 2018-02, deferred			(11)
Stockholders' equity, ending balance	226	(58)	226	(58)
Accumulated other comprehensive income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance			1,307	3,463
Net change			(5,641)	914
Reclassification of tax effects related to the adoption of ASU 2018-02, current			(276)
Reclassification of tax effects related to the adoption of ASU 2018-02, deferred			558
Stockholders' equity, ending balance	$ (4,052)	$ 4,377	$ (4,052)	$ 4,377

Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended	6 Months Ended
	Jun. 08, 2018	May 09, 2018	Jun. 30, 2018	Jun. 30, 2018
Subsidiary, Sale of Stock [Line Items]
Sale of stock, net proceeds		$ 96,300
Aggregate redemption price amount				$ 48,260
Common Stock
Subsidiary, Sale of Stock [Line Items]
Sale of stock, price per share (usd per share)		$ 34.00
Sale of stock, shares issued (shares)		3,045,426
Conversion of shares (shares)			901,644
Common Stock \| IPO
Subsidiary, Sale of Stock [Line Items]
Sale of stock, shares issued (shares)		1,136,176
Common Stock \| Over-Allotment Option
Subsidiary, Sale of Stock [Line Items]
Sale of stock, shares issued (shares)		545,426
SBLF Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Shares redeemed (shares)	48,260
Dividend rate (percent)	9.00%
Aggregate redemption price amount	$ 49,100
Accrued dividends	$ 808
Shares outstanding (shares)			0	0

Capital and Regulatory Matters (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Origin Bancorp, Inc.
Common Equity Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 496,073	$ 360,069
Actual, ratio	12.35%	9.35%
Minimum capital required, amount	$ 281,246	$ 269,570
Minimum capital required, ratio	7.00%	7.00%
Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 505,378	$ 433,338
Actual, ratio	12.58%	11.25%
Minimum capital required, amount	$ 341,512	$ 327,411
Minimum capital required, ratio	8.50%	8.50%
Total Capital to Risk-Weighted Assets
Actual, amount	$ 541,749	$ 472,437
Actual, ratio	13.48%	12.26%
Minimum capital required, amount	$ 421,867	$ 404,616
Minimum capital required, ratio	10.50%	10.50%
Leverage Ratio
Actual, amount	$ 505,378	$ 433,338
Actual, ratio	11.63%	10.53%
Minimum capital required, amount	$ 173,801	$ 164,611
Minimum capital required, ratio	4.00%	4.00%
Origin Bank \| Origin Bank
Common Equity Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 480,656	$ 416,175
Actual, ratio	11.99%	10.82%
Minimum capital required, amount	$ 280,640	$ 269,244
Minimum capital required, ratio	7.00%	7.00%
Well capitalized, amount	$ 260,594	$ 250,012
Well capitalized, ratio	6.50%	6.50%
Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 480,656	$ 416,175
Actual, ratio	11.99%	10.82%
Minimum capital required, amount	$ 340,777	$ 326,940
Minimum capital required, ratio	8.50%	8.50%
Well capitalized, amount	$ 320,731	$ 307,708
Well capitalized, ratio	8.00%	8.00%
Total Capital to Risk-Weighted Assets
Actual, amount	$ 517,027	$ 455,274
Actual, ratio	12.90%	11.84%
Minimum capital required, amount	$ 420,957	$ 403,748
Minimum capital required, ratio	10.50%	10.50%
Well capitalized, amount	$ 400,911	$ 384,522
Well capitalized, ratio	10.00%	10.00%
Leverage Ratio
Actual, amount	$ 480,656	$ 416,175
Actual, ratio	11.11%	10.13%
Minimum capital required, amount	$ 173,077	$ 164,334
Minimum capital required, ratio	4.00%	4.00%
Well capitalized, amount	$ 216,346	$ 205,418
Well capitalized, ratio	5.00%	5.00%
Aggregate dividends without prior regulatory approval	$ 30,800

Commitments and Contingencies - Off-Balance Sheet Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instrument	$ 1,140,653	$ 1,068,088
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instrument	$ 82,816	$ 79,893

Commitments and Contingencies (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Credit card guarantees	$ 1.0	$ 1.0
FHLB letters of credit	135.0	185.0
Lending-related Commitments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Reserve for lending related commitments	$ 2.2	$ 2.0

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Statement of Stockholders' Equity [Abstract]
Common stock dividends declared ($ per share)	$ 0.065	$ 0.065

Securities (Details)	Jun. 30, 2018 security
Investments, Debt and Equity Securities [Abstract]
Number of securities in an unrealized loss positions (in security)	127

Loans - Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	$ 3,372,096	$ 3,241,031
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	3,265,538	3,125,722
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	19,978	24,078
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	86,580	91,228
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	3
Loss
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Real estate
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	2,035,466	1,976,262
Real estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	1,994,380	1,935,344
Real estate \| Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	8,711	8,746
Real estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	32,375	32,172
Real estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Real estate \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Real estate \| Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	1,091,581	1,083,275
Real estate \| Commercial real estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	1,065,396	1,055,911
Real estate \| Commercial real estate \| Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	8,518	7,798
Real estate \| Commercial real estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	17,667	19,566
Real estate \| Commercial real estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Real estate \| Commercial real estate \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Real estate \| Construction/land/land development
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	380,869	322,404
Real estate \| Construction/land/land development \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	377,516	318,488
Real estate \| Construction/land/land development \| Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	162	170
Real estate \| Construction/land/land development \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	3,191	3,746
Real estate \| Construction/land/land development \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Real estate \| Construction/land/land development \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Real estate \| Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	563,016	570,583
Real estate \| Residential real estate \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	551,468	560,945
Real estate \| Residential real estate \| Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	31	778
Real estate \| Residential real estate \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	11,517	8,860
Real estate \| Residential real estate \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Real estate \| Residential real estate \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	1,046,488	989,220
Commercial and industrial \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	981,356	915,111
Commercial and industrial \| Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	11,267	15,332
Commercial and industrial \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	53,865	58,777
Commercial and industrial \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Commercial and industrial \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Mortgage warehouse lines of credit
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	270,494	255,044
Mortgage warehouse lines of credit \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	270,494	255,044
Mortgage warehouse lines of credit \| Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Mortgage warehouse lines of credit \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Mortgage warehouse lines of credit \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Mortgage warehouse lines of credit \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	19,648	20,505
Consumer \| Pass
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	19,308	20,223
Consumer \| Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	0
Consumer \| Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	340	279
Consumer \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	0	3
Consumer \| Loss
Financing Receivable, Recorded Investment [Line Items]
Loans held for investment	$ 0	$ 0

June 30, 2018

December 31, 2017

Prepayment speed

Discount rate