Origin Bancorp (OBK) 10-Q 7 Aug 19 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Aug. 05, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Entity Registrant Name	ORIGIN BANCORP, INC.
Entity CIK	0001516912
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	No
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	true
Entity Small Business	false
Entity Ex Transition Period	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		23,474,238

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets
Cash and due from banks	$ 75,204	$ 71,008
Interest-bearing deposits in banks	124,356	45,670
Total cash and cash equivalents	199,560	116,678
Securities:
Available for sale	548,980	575,644
Held to maturity (fair value of $29,334 and $19,136 at June 30, 2019, and December 31, 2018, respectively)	28,897	19,169
Securities carried at fair value through income	11,615	11,361
Total securities	589,492	606,174
Non-marketable equity securities held in other financial institutions	49,008	42,149
Loans held for sale ($34,401 and $21,562 at fair value at June 30, 2019, and December 31, 2018, respectively)	58,408	52,210
Loans, net of allowance for loan losses of $36,683 and $34,203 at June 30, 2019, and December 31, 2018, respectively; $18,273 and $18,571 at fair value, at June 30, 2019, and December 31, 2018, respectively)	3,947,914	3,754,902
Premises and equipment, net	80,672	75,014
Mortgage servicing rights	21,529	25,114
Cash surrender value of bank-owned life insurance	33,070	32,706
Goodwill and other intangible assets, net	32,144	32,861
Accrued interest receivable and other assets	107,828	83,768
Total assets	5,119,625	4,821,576
Liabilities and Stockholders' Equity
Noninterest-bearing deposits	1,003,499	951,015
Interest-bearing deposits	2,011,719	2,027,720
Time deposits	839,794	804,403
Total deposits	3,855,012	3,783,138
Federal Home Loan Bank (FHLB) advances and other borrowings	601,346	445,224
Junior subordinated debentures, net	9,657	9,644
Accrued expenses and other liabilities	69,317	33,791
Total liabilities	4,535,332	4,271,797
Commitments and contingencies
Stockholders' equity:
Preferred stock, no par value, 2,000,000 shares authorized, zero issued at June 30, 2019, and December 31, 2018	0	0
Common stock ($5.00 par value; 50,000,000 shares authorized; 23,774,238 and 23,726,559 shares issued at June 30, 2019, and December 31, 2018, respectively)	118,871	118,633
Additional paid‑in capital	243,002	242,041
Retained earnings	216,801	191,585
Accumulated other comprehensive income (loss)	5,619	(2,480)
Total equity	584,293	549,779
Total liabilities and stockholders' equity	$ 5,119,625	$ 4,821,576

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Securities held to maturity, fair value	$ 29,334	$ 19,136
Loans held for sale at fair value	34,401	21,562
Allowance for loan losses	36,683	34,203
Loans at fair value	$ 18,273	$ 18,571
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value ($ per share)	$ 5	$ 5
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	23,774,238	23,726,559

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Interest and dividend income
Interest and fees on loans	$ 51,461	$ 40,219	$ 100,636	$ 77,693
Investment securities-taxable	3,208	2,057	6,549	3,797
Investment securities-nontaxable	871	1,156	1,729	2,340
Interest and dividend income on assets held in other financial institutions	1,523	1,320	2,643	2,366
Total interest and dividend income	57,063	44,752	111,557	86,196
Interest expense
Interest-bearing deposits	11,540	6,820	22,037	12,800
FHLB advances and other borrowings	2,415	624	4,249	1,228
Subordinated debentures	139	138	276	274
Total interest expense	14,094	7,582	26,562	14,302
Net interest income	42,969	37,170	84,995	71,894
Provision (benefit) for credit losses	1,985	311	2,990	(1,213)
Net interest income after provision (benefit) for credit losses	40,984	36,859	82,005	73,107
Noninterest income
Mortgage banking revenue	3,252	2,317	5,858	4,711
(Loss) gain on sales and disposals of other assets, net	(166)	121	(163)	60
Other fee income	360	403	636	855
Other income	1,259	2,791	3,152	4,685
Total noninterest income	11,176	10,615	22,780	20,415
Noninterest expense
Salaries and employee benefits	22,764	19,859	45,377	38,100
Occupancy and equipment, net	4,200	3,793	8,244	7,446
Data processing	1,810	1,347	3,397	2,820
Electronic banking	892	680	1,581	1,423
Communications	647	510	1,233	1,025
Advertising and marketing	1,089	1,022	1,887	1,679
Professional services	839	598	1,743	1,263
Regulatory assessments	691	660	1,402	1,380
Loan related expenses	790	798	1,459	1,511
Office and operations	1,849	1,588	3,330	2,866
Other expenses	1,524	1,157	2,823	2,356
Total noninterest expense	37,095	32,012	72,476	61,869
Income before income tax expense	15,065	15,462	32,309	31,653
Income tax expense	2,782	2,760	5,871	5,544
Net income	12,283	12,702	26,438	26,109
Preferred stock dividends	0	808	0	1,923
Net income allocated to participating stockholders	0	40	0	921
Net income available to common stockholders	$ 12,283	$ 11,854	$ 26,438	$ 23,265
Basic earnings per common share ($ per share)	$ 0.52	$ 0.54	$ 1.12	$ 1.14
Diluted earnings per common share ($ per share)	$ 0.52	$ 0.53	$ 1.11	$ 1.13
Service charges and fees
Noninterest income
Revenue from contracts with customers	$ 3,435	$ 3,157	$ 6,751	$ 6,171
Insurance commission and fee income
Noninterest income
Revenue from contracts with customers	$ 3,036	$ 1,826	$ 6,546	$ 3,933

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 12,283	$ 12,702	$ 26,438	$ 26,109
Securities available for sale and transferred securities:
Net unrealized holding gains (losses) arising during the period	5,351	(1,696)	10,515	(7,380)
Net losses realized as a yield adjustment in interest on investment securities	(3)	(3)	(5)	(5)
Change in the net unrealized gains (losses) on investment securities, before tax	5,348	(1,699)	10,510	(7,385)
Income tax expense (benefit) related to net unrealized gains (losses) arising during the period	1,123	(357)	2,207	(1,551)
Change in the net unrealized gain (loss) on investment securities, net of tax	4,225	(1,342)	8,303	(5,834)
Cash flow hedges:
Net unrealized (losses) gains arising during the period	(150)	67	(228)	265
Reclassification adjustment for gains (losses) included in net income	14	5	30	21
Change in the net unrealized (loss) gain on cash flow hedges, before tax	(164)	62	(258)	244
Income tax expense related to net unrealized (losses) gains on cash flow hedges	(34)	13	(54)	51
Change in the net unrealized (loss) gain on cash flow hedges, net of tax	(130)	49	(204)	193
Other comprehensive income (loss), net of tax	4,095	(1,293)	8,099	(5,641)
Comprehensive income	$ 16,378	$ 11,409	$ 34,537	$ 20,468

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands		Total	Preferred Stock Series SBLF		Preferred Stock Series D	Common Stock	Preferred StockPreferred Stock Series SBLF	Preferred StockPreferred Stock Series D	Additional Paid-In Capital	Retained Earnings	Retained EarningsPreferred Stock Series SBLF		Retained EarningsPreferred Stock Series D	Accumulated Other Comprehensive Income (loss)	Less: Retirement Plan-Owned Shares
Common shares outstanding, beginning balance (in shares) 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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		13,407								13,407
Other comprehensive (loss) income, net of tax		(4,348)												(4,348)
Recognition of stock compensation, net (in shares)						6,489
Recognition of stock compensation, net		172				$ 32			140
Dividends declared - preferred stock			$ (1,086)	[1]	$ (29)						$ (1,086)	[1]	$ (29)
Dividends declared - common stock ($0.0325 per share)		(634)								(634)
Common shares outstanding, ending balance (in shares) at Mar. 31, 2018						19,525,241
Stockholders' equity, ending balance at Mar. 31, 2018		427,833				$ 97,626	48,260	16,998	146,201	156,498				(2,759)	(34,991)
Common shares outstanding, beginning balance (in shares) 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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		26,109
Other comprehensive (loss) income, net of tax		(5,641)
Common shares outstanding, ending balance (in shares) 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
Common shares outstanding, beginning balance (in shares) at Mar. 31, 2018						19,525,241
Stockholders' equity, beginning balance at Mar. 31, 2018		427,833				$ 97,626	48,260	16,998	146,201	156,498				(2,759)	(34,991)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		12,702								12,702
Other comprehensive (loss) income, net of tax		(1,293)												(1,293)
Recognition of stock compensation, net (in shares)						31,752
Recognition of stock compensation, net		220				$ 159			61
Termination of 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]		$ (808)								$ (808)
Dividends declared - common stock ($0.0325 per share)		(764)								(764)
Common shares outstanding, ending balance (in shares) 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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		12,318								12,318
Other comprehensive (loss) income, net of tax		(2,145)												(2,145)
Recognition of stock compensation, net (in shares)						50,348
Recognition of stock compensation, net		511				$ 252			259
Stock issuance - common		(59)							(59)
Stock issuance - RCF acquisition (in shares)						66,824
Stock issuance - RCF acquisition		2,706				$ 334			2,372
Dividends declared - common stock ($0.0325 per share)		(768)								(768)
Common shares outstanding, ending balance (in shares) at Sep. 30, 2018						23,621,235
Stockholders' equity, ending balance at Sep. 30, 2018		531,919				$ 118,106	0	0	240,832	179,178				(6,197)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		13,178								13,178
Other comprehensive (loss) income, net of tax		3,717												3,717
Recognition of stock compensation, net (in shares)						105,324
Recognition of stock compensation, net		1,095				$ 527			568
Tax benefit of 2018 stock issuance cost		641							641
Dividends declared - common stock ($0.0325 per share)		(771)								(771)
Common shares outstanding, ending balance (in shares) at Dec. 31, 2018						23,726,559
Stockholders' equity, ending balance at Dec. 31, 2018		549,779				$ 118,633	0	0	242,041	191,585				(2,480)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		14,155								14,155
Other comprehensive (loss) income, net of tax		4,004												4,004
Recognition of stock compensation, net (in shares)						19,426
Recognition of stock compensation, net		635				$ 97			538
Dividends declared - common stock ($0.0325 per share)		(772)								(772)
Common shares outstanding, ending balance (in shares) at Mar. 31, 2019						23,745,985
Stockholders' equity, ending balance at Mar. 31, 2019		568,122				$ 118,730	0	0	242,579	205,289				1,524	0
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2018						23,726,559
Stockholders' equity, beginning balance at Dec. 31, 2018		549,779				$ 118,633	0	0	242,041	191,585				(2,480)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		26,438
Other comprehensive (loss) income, net of tax		8,099
Common shares outstanding, ending balance (in shares) at Jun. 30, 2019						23,774,238
Stockholders' equity, ending balance at Jun. 30, 2019		584,293				$ 118,871	0	0	243,002	216,801				5,619	0
Common shares outstanding, beginning balance (in shares) at Mar. 31, 2019						23,745,985
Stockholders' equity, beginning balance at Mar. 31, 2019		568,122				$ 118,730	0	0	242,579	205,289				1,524	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		12,283								12,283
Other comprehensive (loss) income, net of tax		4,095												4,095
Recognition of stock compensation, net (in shares)						28,253
Recognition of stock compensation, net		564				$ 141			423
Dividends declared - common stock ($0.0325 per share)		(771)								(771)
Common shares outstanding, ending balance (in shares) at Jun. 30, 2019						23,774,238
Stockholders' equity, ending balance at Jun. 30, 2019		$ 584,293				$ 118,871	$ 0	$ 0	$ 243,002	$ 216,801				$ 5,619	$ 0
[1]	The dividend rate on the Senior Non-Cumulative Perpetual Preferred stock, Series SBLF ("SBLF preferred stock") was payable quarterly at a fixed annual rate of 9%. The Company redeemed all 48,260 shares of the SBLF preferred stock in June 2018.

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	1 Months Ended	3 Months Ended						6 Months Ended
	Jun. 30, 2018	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2018
Preferred stock dividends declared ($ per share)							$ 0.0325
Common stock dividends declared ($ per share)		$ 0.0325	$ 0.0325	$ 0.0325	$ 0.0325	$ 0.0325	$ 0.0325
Preferred Stock Series SBLF
Fixed annual rate								9.00%
Shares redeemed (shares)	48,260

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 26,438	$ 26,109
Adjustments to reconcile net income to net cash provided by operating activities:
Provision (benefit) for credit losses	2,990	(1,213)
Depreciation and amortization	3,294	2,698
Net amortization on securities	105	730
Amortization of investments in tax credit funds	810	975
Deferred income tax (benefit) expense	(986)	3,163
Stock-based compensation expense	1,034	417
Originations of mortgage loans held for sale	(123,922)	(156,646)
Proceeds from mortgage loans held for sale	110,469	159,321
Gain on mortgage loans held for sale, including origination of servicing rights	(3,078)	(993)
Net loss on disposals of premises and equipment	73	19
Increase in the cash surrender value of life insurance	(364)	(333)
Gain on equity securities without a readily determinable fair value	(367)	(1,977)
Net losses (gains) on sales and write downs of other real estate owned	90	(79)
Other operating activities, net	11,466	(2,173)
Net cash provided by operating activities	28,052	30,018
Cash flows from investing activities:
Purchases of securities available for sale	(6,823)	(318,649)
Maturities, paydowns and calls of securities available for sale	43,898	207,554
Purchases of securities held to maturity	(10,000)	0
Maturities, paydowns and calls of securities held to maturity	266	456
Paydowns of securities carried at fair value	240	230
Net purchases of non-marketable equity securities held in other financial institutions	(6,192)	0
Originations of mortgage warehouse loans	(1,835,136)	(2,237,738)
Proceeds from pay-offs of mortgage warehouse loans	1,818,065	2,222,288
Net increase in loans, excluding mortgage warehouse and loans held for sale	(173,969)	(118,178)
Return of capital on limited partnership investments	401	144
Capital calls on limited partnership investments	(821)	(2,125)
Purchases of premises and equipment	(8,488)	(2,261)
Proceeds from sales of premises and equipment	27	111
Proceeds from sales of other real estate owned	95	586
Net cash used in investing activities	(178,437)	(247,582)
Cash flows from financing activities:
Net increase in deposits	71,874	160,083
Repayments on long-term FHLB advances	(865)	(499)
Net increase (decrease) in short-term FHLB advances	170,001	0
Net decrease in securities sold under agreements to repurchase	(6,372)	(1,676)
Dividends paid	(1,537)	(4,407)
Taxes paid related to net share settlement of equity awards	0	(25)
Cash received from exercise of stock options	166	0
Proceeds from issuance of common stock, net of offering expenses	0	94,735
Redemption of Series SBLF preferred stock	0	(48,260)
Net cash provided by financing activities	233,267	199,951
Net increase (decrease) in cash and cash equivalents	82,882	(17,613)
Cash and cash equivalents at beginning of period	116,678	187,187
Cash and cash equivalents at end of period	199,560	169,574
Interest paid	25,996	14,700
Income taxes paid	638	374
Significant non-cash transactions:
Real estate acquired in settlement of loans	0	662
Conversion of Series D preferred stock to common stock	$ 0	$ 16,998

Significant Accounting Policies

Significant Accounting Policies	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	Note 1 - Significant Accounting Policies Nature of Operations . Origin Bancorp, Inc. ("Company") is a financial holding company headquartered in Ruston, Louisiana. The Company's wholly owned bank subsidiary, Origin Bank ("Bank"), provides a broad range of financial services to businesses, municipalities, high net worth individuals and retail clients. The Company currently operates 43 banking centers located in North Louisiana, Central Mississippi, Dallas/Fort Worth and Houston, Texas. The Company principally operates in one business segment, community banking. Basis of Presentation . The condensed consolidated financial statements in this quarterly report on Form 10-Q include the accounts of the Company and all other entities in which Origin Bancorp, Inc. has a controlling financial interest, including the Bank and Davison Insurance Agency, LLC. All significant intercompany balances and transactions have been eliminated in consolidation. The condensed consolidated financial statements in this quarterly report on Form 10-Q have not been audited by an independent registered public accounting firm, excluding the figures as of December 31, 2018, but in the opinion of management, reflect all adjustments necessary for fair presentation of the Company's financial position and results of operations for the periods presented. These condensed consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. 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 U.S. GAAP for complete financial statements. These condensed consolidated statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2018, included in the Company's annual report on Form 10-K ("2018 Form 10-K") filed with the SEC. Operating results for the interim periods disclosed herein are not necessarily indicative of results that may be expected for a full year. Certain prior year amounts have been reclassified to conform to the current year financial statement presentations. These reclassifications did not impact previously reported net income or comprehensive income. The Company's significant accounting policies, including those for loans, impaired loans, non-accrual loans and allowance for loan losses, are described in Note 1 of the Notes to Consolidated Financial Statements for the year ended December 31, 2018, included in the Company's 2018 Form 10-K ("Note 1"). Except as described in the following paragraph, there have been no changes to the Company's significant accounting policies since December 31, 2018. Effective January 1, 2019, two accounting policies were revised and updated from the accounting policies described in Note 1. Effective January 1, 2019, the Company began calculating earnings per share using the treasury method due to the conversion and redemption of all material participating securities during 2018, which eliminated the requirement to calculate earnings per share using the two-class method. See the discussion below titled "Earnings Per Share " for an explanation of these methodologies. Additionally, on January 1, 2019, the Company adopted Accounting Standards Update ("ASU") 2016-02, Leases (Topic 842) , resulting in a change to the Company's lease accounting policies. See the discussion below titled "Effect of Recently Adopted Accounting Standards" for a description of policy revisions resulting from the Company's adoption of ASU 2016-02. For interim reporting purposes, the Company follows the same 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 U.S. 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 include 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 Company's consolidated financial statements in the period they are deemed necessary. While management uses its best judgment, actual results could differ from those estimates. Earnings Per Share . Basic and diluted earnings per common share for periods beginning after December 31, 2018, are calculated using the treasury method. Under the treasury method, basic earnings per share is calculated as net income divided by the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the dilutive effect of additional potential common shares issuable under stock options and restricted stock awards. Basic and diluted earnings per common share for periods ending on or before December 31, 2018, were calculated using the two-class method. The two-class method is an earnings allocation formula that determines earnings per share for each share of common stock and participating securities according to dividends declared (distributed earnings) and participation rights in undistributed earnings. Distributed and undistributed earnings were allocated between common and participating security stockholders based on their respective rights to receive dividends. Share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents were considered participating securities (e.g., restricted stock grants). Preferred stock that receives dividends based on dividends paid on common stock was also considered a participating security (e.g., Series D preferred stock). Net income attributable to common stockholders was then divided by the weighted average number of common shares outstanding during the period, net of participating securities. Diluted income per common share under the two-class method considers common stock issuable under the assumed release of unvested restricted stock awards, convertible preferred stock being converted to common stock, and the assumed exercise of stock options granted. The dilutive effect of share-based payment awards that were not deemed to be participating securities was calculated using the treasury stock method, which assumes that the proceeds from exercise were used to purchase common stock at the average market price for the period. The dilutive effect of participating securities was calculated using the more dilutive of the treasury stock method (which assumes that the participating securities are exercised/released) or the two-class method (which assumes that the participating securities are not exercised/released and earnings are reallocated between common and participating security stockholders). Potentially dilutive common stock equivalents were excluded from the computation of diluted earnings per common share in periods in which the effect would be antidilutive. Effect of Recently Adopted Accounting Standards ASU No. 2016-02 — Leases (Topic 842). ASU 2016-02 requires lessees to recognize a lease liability and a right-of-use ("ROU") asset on the balance sheet for operating leases. Accounting for finance (formerly known as capital) leases is substantially unchanged. The Company adopted this ASU as of January 1, 2019. Please see Note 6 - Leases for more information. Effect of Newly Issued But Not Yet Effective Accounting Standards ASU No. 2018-13, Fair Value Measurement - (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement. The amendments in this ASU modify the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement , based on the concepts in Financial Accounting Standards Board ("FASB") Concepts Statement, Conceptual Framework for Financial Reporting—Chapter 8: Notes to Financial Statements, including the consideration of costs and benefits. For public business entities that file reports with the SEC, the amendments in the update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company is evaluating the impact of this ASU on the consolidated financial statements and disclosures. ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This ASU 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 U.S. 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 U.S. 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 allowance for credit 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 its results of operations, financial position or disclosures. However, the Company has begun developing processes and procedures to ensure the Company is compliant at the required adoption date. Among other things, the Company has (1) selected a third-party vendor to provide a software solution, (2) evaluated data needs and data gaps (3) considered pooling criteria, (4) evaluated different loss estimation methodologies, (5) considered various forecasting models and forecast periods, and (6) begun evaluating accounting processes and internal controls that will be impacted by the adoption of the new 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.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2019
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) 2019 (1) 2018 (1) 2019 (1) 2018 (1) Basic earnings per common share Net income $ 12,283 $ 12,702 $ 26,438 $ 26,109 Less: Dividends to preferred stock — 808 — 1,923 Less: Net income allocated to participating stockholders — 40 — 921 Net income available to common stockholders $ 12,283 $ 11,854 $ 26,438 $ 23,265 Weighted average common shares outstanding 23,585,040 22,107,489 23,577,335 20,451,960 Basic earnings per common share $ 0.52 $ 0.54 $ 1.12 $ 1.14 Diluted earnings per common share Diluted earnings applicable to common stockholders (2) $ 12,283 $ 11,876 $ 26,438 $ 23,318 Weighted average diluted common shares outstanding: Weighted average common shares outstanding 23,585,040 22,107,489 23,577,335 20,451,960 Dilutive effect of stock-based awards 201,606 274,514 204,023 274,514 Weighted average diluted common shares outstanding 23,786,646 22,382,003 23,781,358 20,726,474 Diluted earnings per common share $ 0.52 $ 0.53 $ 1.11 $ 1.13 ____________________________ (1) Series D preferred stockholders were participating stockholders during the three and six months ended June 30, 2018, requiring the Company to calculate earnings per share using the two-class method. Subsequent to the conversion of all Series D preferred stock in June 2018, the Company used the treasury method for the computation of earnings per share. (2) The two-class method for the computation of earnings per share was used for the three and six months ended June 30, 2018. Net income available 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

Securities	6 Months Ended
	Jun. 30, 2019
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 Gross Gross Fair June 30, 2019 Available for sale: State and municipal securities $ 91,894 $ 2,574 $ (5 ) $ 94,463 Corporate bonds 11,017 643 — 11,660 U.S. Government and agency securities 61,578 267 (8 ) 61,837 Commercial mortgage-backed securities 12,082 339 — 12,421 Residential mortgage-backed securities 175,853 2,572 (332 ) 178,093 Commercial collateralized mortgage obligations 4,360 53 — 4,413 Residential collateralized mortgage obligations 185,089 1,471 (467 ) 186,093 Total $ 541,873 $ 7,919 $ (812 ) $ 548,980 Held to maturity: State and municipal securities $ 28,897 $ 437 $ — $ 29,334 Securities carried at fair value through income: State and municipal securities (1) $ 11,263 $ — $ — $ 11,615 December 31, 2018 Available for sale: State and municipal securities $ 99,780 $ 1,266 $ (163 ) $ 100,883 Corporate bonds 10,997 102 (65 ) 11,034 U.S. Government and agency securities 61,122 82 (54 ) 61,150 Commercial mortgage-backed securities 16,672 94 — 16,766 Residential mortgage-backed securities 188,058 417 (2,160 ) 186,315 Residential collateralized mortgage obligations 202,422 315 (3,241 ) 199,496 Total $ 579,051 $ 2,276 $ (5,683 ) $ 575,644 Held to maturity: State and municipal securities $ 19,169 $ — $ (33 ) $ 19,136 Securities carried at fair value through income: State and municipal securities (1) $ 11,503 $ — $ — $ 11,361 ____________________________ (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 condensed consolidated statements of income. See Note 5 - Fair Value of Financial Instruments for more information. Securities with unrealized losses at June 30, 2019 , and December 31, 2018 , aggregated by investment category and those individual securities that have been in a continuous unrealized loss position for less than 12 months and for 12 months or more were as follows: (Dollars in thousands) Less than 12 Months 12 Months or More Total June 30, 2019 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: State and municipal securities $ 1,489 $ (1 ) $ 1,187 $ (4 ) $ 2,676 $ (5 ) U.S. Government and agency securities 731 (8 ) — — 731 (8 ) Residential mortgage-backed securities 907 (2 ) 54,880 (330 ) 55,787 (332 ) Residential collateralized mortgage obligations 7,358 (29 ) 46,569 (438 ) 53,927 (467 ) Total $ 10,485 $ (40 ) $ 102,636 $ (772 ) $ 113,121 $ (812 ) Held to maturity: State and municipal securities $ — $ — $ — $ — $ — $ — December 31, 2018 Available for sale: State and municipal securities $ 13,101 $ (50 ) $ 8,463 $ (113 ) $ 21,564 $ (163 ) Corporate bonds 7,932 (65 ) — — 7,932 (65 ) U.S. Government and agency securities 56,271 (54 ) — — 56,271 (54 ) Residential mortgage-backed securities 18,836 (65 ) 77,471 (2,095 ) 96,307 (2,160 ) Residential collateralized mortgage obligations 14,711 (79 ) 120,601 (3,162 ) 135,312 (3,241 ) Total $ 110,851 $ (313 ) $ 206,535 $ (5,370 ) $ 317,386 $ (5,683 ) Held to maturity: State and municipal securities $ 13,921 $ (33 ) $ — $ — $ 13,921 $ (33 ) At June 30, 2019 , the Company had 44 individual securities that were in an unrealized loss position. The unrealized losses for each of the securities related 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, 2019 , 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, 2019 Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ — $ — $ 59,863 $ 59,908 Due after one year through five years 13,687 13,784 24,594 25,037 Due after five years through ten years 10,000 10,328 75,818 78,645 Due after ten years 5,210 5,222 4,214 4,370 Commercial mortgage-backed securities — — 12,082 12,421 Residential mortgage-backed securities — — 175,853 178,093 Commercial collateralized mortgage obligations — — 4,360 4,413 Residential collateralized mortgage obligations — — 185,089 186,093 Total $ 28,897 $ 29,334 $ 541,873 $ 548,980 The following table presents carrying amounts of securities pledged as collateral for public deposits and repurchase agreements as of the dates presented. (Dollars in thousands) June 30, 2019 December 31, 2018 Carrying value of securities pledged to secure public deposits $ 312,971 $ 364,055 Carrying value of securities pledged to repurchase agreements 40,500 48,847

Loans

Loans	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Loans	Note 4 - Loans Loans consisted of the following: (Dollars in thousands) June 30, 2019 December 31, 2018 Loans held for sale $ 58,408 $ 52,210 Loans held for investment: Loans secured by real estate: Commercial real estate $ 1,219,470 $ 1,228,402 Construction/land/land development 524,999 429,660 Residential real estate 651,988 629,714 Total real estate 2,396,457 2,287,776 Commercial and industrial 1,341,652 1,272,566 Mortgage warehouse lines of credit 224,939 207,871 Consumer 21,549 20,892 Total loans held for investment (1) 3,984,597 3,789,105 Less: Allowance for loan losses 36,683 34,203 Net loans held for investment $ 3,947,914 $ 3,754,902 ____________________________ (1) Includes net deferred loan fees of $3.5 million and $3.2 million at June 30, 2019 , and December 31, 2018 , respectively. Included in total loans held for investment were $18.3 million and $18.6 million of commercial real estate loans for which the fair value option was elected as of June 30, 2019 , and December 31, 2018 , respectively. 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. Loan risk ratings are the primary indicator of credit quality for the loan portfolio and are continually evaluated to ensure they are appropriate based on currently available information. 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 has deteriorated and is at risk of further decline. • Substandard (8) This grade includes "Substandard" loans under 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 under 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 under regulatory guidelines. Loss loans are charged-off or written down when repayment is not expected. The recorded investments in loans by credit quality indicator at June 30, 2019 , and December 31, 2018 , excluding loans held for sale, were as follows: June 30, 2019 (Dollars in thousands) Pass Special Mention Substandard Doubtful Loss Total Loans secured by real estate: Commercial real estate $ 1,188,742 $ 12,803 $ 17,925 $ — $ — $ 1,219,470 Construction/land/land development 523,414 154 1,431 — — 524,999 Residential real estate 643,039 1,122 7,827 — — 651,988 Total real estate 2,355,195 14,079 27,183 — — 2,396,457 Commercial and industrial 1,265,515 26,906 49,231 — — 1,341,652 Mortgage warehouse lines of credit 224,939 — — — — 224,939 Consumer 21,393 — 156 — — 21,549 Total loans held for investment $ 3,867,042 $ 40,985 $ 76,570 $ — $ — $ 3,984,597 December 31, 2018 (Dollars in thousands) Pass Special Mention Substandard Doubtful Loss Total Loans secured by real estate: Commercial real estate $ 1,206,194 $ 3,101 $ 19,107 $ — $ — $ 1,228,402 Construction/land/land development 426,770 157 2,733 — — 429,660 Residential real estate 617,996 1,142 10,576 — — 629,714 Total real estate 2,250,960 4,400 32,416 — — 2,287,776 Commercial and industrial 1,190,718 34,964 46,884 — — 1,272,566 Mortgage warehouse lines of credit 207,871 — — — — 207,871 Consumer 20,712 — 180 — — 20,892 Total loans held for investment $ 3,670,261 $ 39,364 $ 79,480 $ — $ — $ 3,789,105 The following tables present the Company's loan portfolio aging analysis at the dates indicated: June 30, 2019 (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 $ 2,822 $ — $ 7,857 $ 10,679 $ 1,208,791 $ 1,219,470 $ — Construction/land/land development 768 249 56 1,073 523,926 524,999 — Residential real estate 663 838 3,063 4,564 647,424 651,988 — Total real estate 4,253 1,087 10,976 16,316 2,380,141 2,396,457 — Commercial and industrial 704 708 13,978 15,390 1,326,262 1,341,652 — Mortgage warehouse lines of credit — — — — 224,939 224,939 — Consumer 170 — 8 178 21,371 21,549 — Total loans held for investment $ 5,127 $ 1,795 $ 24,962 $ 31,884 $ 3,952,713 $ 3,984,597 $ — December 31, 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 $ 458 $ 1,409 $ 7,224 $ 9,091 $ 1,219,311 $ 1,228,402 $ — Construction/land/land development 2,657 — 435 3,092 426,568 429,660 — Residential real estate 2,137 527 4,149 6,813 622,901 629,714 — Total real estate 5,252 1,936 11,808 18,996 2,268,780 2,287,776 — Commercial and industrial 276 8,263 6,157 14,696 1,257,870 1,272,566 — Mortgage warehouse lines of credit — — — — 207,871 207,871 — Consumer 383 8 2 393 20,499 20,892 — Total loans held for investment $ 5,911 $ 10,207 $ 17,967 $ 34,085 $ 3,755,020 $ 3,789,105 $ — 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, 2019 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (Benefit) (1) Ending Balance Loans secured by real estate: Commercial real estate $ 9,258 $ 106 $ 8 $ 260 $ 9,420 Construction/land/land development 3,679 38 — 300 3,941 Residential real estate 5,577 — 18 37 5,632 Commercial and industrial 16,475 622 121 1,203 17,177 Mortgage warehouse lines of credit 365 29 — (73 ) 263 Consumer 224 45 16 55 250 Total $ 35,578 $ 840 $ 163 $ 1,782 $ 36,683 ____________________________ (1) The $2.0 million provision for credit losses on the condensed consolidated statements of income includes a $1.8 million net loan loss provision and a $203,000 provision for off-balance sheet commitments for the three months ended June 30, 2019 . 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 condensed 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, 2019 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (Benefit) (1) Ending Balance Loans secured by real estate: Commercial real estate $ 8,999 $ 195 $ 59 $ 557 $ 9,420 Construction/land/land development 3,331 38 1 647 3,941 Residential real estate 5,705 — 45 (118 ) 5,632 Commercial and industrial 15,616 1,133 1,195 1,499 17,177 Mortgage warehouse lines of credit 316 29 — (24 ) 263 Consumer 236 53 23 44 250 Total $ 34,203 $ 1,448 $ 1,323 $ 2,605 $ 36,683 ____________________________ (1) The $3.0 million provision for credit losses on the condensed consolidated statements of income includes a $2.6 million net loan loss provision and a $385,000 provision for off-balance sheet commitments for the six months ended June 30, 2019 . 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 condensed 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 . The following tables present the balance of loans receivable by method of impairment evaluation at the dates indicated: June 30, 2019 (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 $ 2 $ 9,418 $ 9,895 $ 1,191,302 Construction/land/land development 2 3,939 1,156 523,843 Residential real estate 8 5,624 4,704 647,284 Commercial and industrial 181 16,996 16,031 1,325,621 Mortgage warehouse lines of credit — 263 — 224,939 Consumer 3 247 131 21,418 Total $ 196 $ 36,487 $ 31,917 $ 3,934,407 ____________________________ (1) Excludes $18.3 million of commercial real estate loans 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, 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 $ 5 $ 8,994 $ 8,773 $ 1,201,058 Construction/land/land development 19 3,312 1,017 428,643 Residential real estate 68 5,637 6,876 622,838 Commercial and industrial 255 15,361 16,428 1,256,138 Mortgage warehouse lines of credit — 316 — 207,871 Consumer 19 217 184 20,708 Total $ 366 $ 33,837 $ 33,278 $ 3,737,256 ____________________________ (1) Excludes $18.6 million of commercial real estate loans 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, 2019 , or December 31, 2018 . June 30, 2019 (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 $ 12,224 $ 9,776 $ 119 $ 9,895 $ 2 Construction/land/land development 1,525 827 329 1,156 2 Residential real estate 5,584 4,274 430 4,704 8 Total real estate 19,333 14,877 878 15,755 12 Commercial and industrial 18,631 15,651 380 16,031 181 Consumer 140 — 131 131 3 Total impaired loans $ 38,104 $ 30,528 $ 1,389 $ 31,917 $ 196 December 31, 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 $ 10,894 $ 8,725 $ 48 $ 8,773 $ 5 Construction/land/land development 1,329 838 179 1,017 19 Residential real estate 7,815 6,092 784 6,876 68 Total real estate 20,038 15,655 1,011 16,666 92 Commercial and industrial 18,883 15,806 622 16,428 255 Consumer 202 — 184 184 19 Total impaired loans $ 39,123 $ 31,461 $ 1,817 $ 33,278 $ 366 The average recorded investment and interest recognized on impaired loans while classified as impaired for the three and six months ended June 30, 2019 and 2018 , were as follows: Three Months Ended June 30, 2019 2018 (Dollars in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Loans secured by real estate: Commercial real estate $ 9,880 $ 6 $ 10,093 $ 15 Construction/land/land development 1,145 2 1,368 2 Residential real estate 4,830 5 7,543 11 Total real estate 15,855 13 19,004 28 Commercial and industrial 15,885 3 13,198 56 Consumer 165 1 274 1 Total impaired loans $ 31,905 $ 17 $ 32,476 $ 85 Six Months Ended June 30, 2019 2018 (Dollars in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Loans secured by real estate: Commercial real estate $ 9,532 $ 11 $ 9,942 $ 43 Construction/land/land development 1,090 4 1,650 11 Residential real estate 5,467 12 7,619 36 Total real estate 16,089 27 19,211 90 Commercial and industrial 16,083 9 15,792 105 Consumer 172 2 266 3 Total impaired loans $ 32,344 $ 38 $ 35,269 $ 198 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, 2019 , the Company had no funding commitments in connection with impaired loans. Non-performing (nonaccrual) loans held for investment were as follows: (Dollars in thousands) June 30, 2019 December 31, 2018 Loans secured by real estate: Commercial real estate $ 9,423 $ 8,281 Construction/land/land development 1,111 935 Residential real estate 4,978 6,668 Total real estate 15,512 15,884 Commercial and industrial 14,810 15,792 Consumer 156 180 Total nonaccrual loans $ 30,478 $ 31,856 For the six months ended June 30, 2019 and 2018 , gross interest income that would have been recorded if the nonaccruing loans had been current in accordance with their original terms was $797,000 and $651,000 , respectively. No interest income was recorded on these loans while they were considered nonaccrual during the six months ended June 30, 2019 or 2018 . The Company elects the fair value option for recording certain residential mortgage loans held for sale, as well as certain commercial real estate and commercial and industrial loans, in accordance with U.S. GAAP. The Company had $2.0 million of nonaccrual mortgage loans held for sale that were recorded using the fair value option election at June 30, 2019 , and $741,000 at December 31, 2018 . There were no nonaccrual loans held for investment that were recorded using the fair value option election at June 30, 2019 , or December 31, 2018 . The following is a summary of loans classified as TDRs. (Dollars in thousands) June 30, 2019 December 31, 2018 TDRs Nonaccrual TDRs $ 5,857 $ 5,793 Performing TDRs 2,015 2,054 Total $ 7,872 $ 7,847 The following table presents the pre-modification balance of TDR modifications that occurred during the periods indicated and the ending balances by concession type as of the period presented. Three Months Ended June 30, 2019 (Dollars in thousands) Number of Loans Restructured Pre-modification Recorded Balance Term Concessions Combination of Term and Rate Concessions Total Modifications Commercial and industrial 2 $ 789 $ 779 $ — $ 779 Consumer 1 11 11 — 11 Total 3 $ 800 $ 790 $ — $ 790 Six Months Ended June 30, 2019 (Dollars in thousands) Number of Loans Restructured Pre-modification Recorded Balance Term Concessions Combination of Term and Rate Concessions Total Modifications Construction/land/land development 1 $ 361 $ — $ 354 $ 354 Commercial and industrial 3 808 796 — 796 Consumer 1 11 11 — 11 Total 5 $ 1,180 $ 807 $ 354 $ 1,161 Three Months Ended June 30, 2018 (Dollars in thousands) Number of Loans Restructured Pre-modification Recorded Balance Term Concessions Interest Rate Concessions Combination of Term and Rate Concessions Total Modifications Residential real estate 4 $ 92 $ 51 $ 21 $ 17 $ 89 Consumer 1 33 — — 32 32 Total 5 $ 125 $ 51 $ 21 $ 49 $ 121 Six Months Ended June 30, 2018 (Dollars in thousands) Number of Loans Restructured Pre-modification Recorded Balance Term Concessions Interest Rate Concessions Combination of Term and Rate Concessions Total Modifications Residential real estate 5 $ 187 $ 51 $ 21 $ 106 $ 178 Consumer 1 33 — — 32 32 Total 6 $ 220 $ 51 $ 21 $ 138 $ 210 During the six months ended June 30, 2019 , no loan defaulted after having been modified as a TDR within the previous 12 months. 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. A payment default is defined as a loan that was 90 or more days past due. The modifications made during the six months ended June 30, 2019 , did not significantly impact the Company's determination of the allowance for loan losses. The Company monitors the performance of the modified loans to their restructured terms on an ongoing basis. 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.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2019
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 condensed consolidated 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 that 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; and • 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, 2019 , and December 31, 2018 , segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value. June 30, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 55,911 $ 38,552 $ 94,463 Corporate bonds — 11,660 — 11,660 U.S. Government and agency securities 56,254 5,583 — 61,837 Commercial mortgage-backed securities — 12,421 — 12,421 Residential mortgage-backed securities — 178,093 — 178,093 Commercial collateralized mortgage obligations — 4,413 — 4,413 Residential collateralized mortgage obligations — 186,093 — 186,093 Securities available for sale 56,254 454,174 38,552 548,980 Securities carried at fair value through income — — 11,615 11,615 Loans held for sale — 34,401 — 34,401 Loans at fair value — — 18,273 18,273 Mortgage servicing rights — — 21,529 21,529 Other assets - derivatives — 9,350 — 9,350 Total recurring fair value measurements - assets $ 56,254 $ 497,925 $ 89,969 $ 644,148 Other liabilities - derivatives $ — $ (9,187 ) $ — $ (9,187 ) Total recurring fair value measurements - liabilities $ — $ (9,187 ) $ — $ (9,187 ) December 31, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 61,522 $ 39,361 $ 100,883 Corporate bonds — 11,034 — 11,034 U.S. Government and agency securities 55,515 5,635 — 61,150 Commercial mortgage-backed securities — 16,766 — 16,766 Residential mortgage-backed securities — 186,315 — 186,315 Residential collateralized mortgage obligations — 199,496 — 199,496 Securities available for sale 55,515 480,768 39,361 575,644 Securities carried at fair value through income — — 11,361 11,361 Loans held for sale — 21,562 — 21,562 Loans at fair value — — 18,571 18,571 Mortgage servicing rights — — 25,114 25,114 Other assets - derivatives — 3,563 — 3,563 Total recurring fair value measurements - assets $ 55,515 $ 505,893 $ 94,407 $ 655,815 Other liabilities - derivatives $ — $ (2,846 ) $ — $ (2,846 ) Total recurring fair value measurements - liabilities $ — $ (2,846 ) $ — $ (2,846 ) The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the six months ended June 30, 2019 and 2018 , are summarized as follows: (Dollars in thousands) Loans at Fair Value MSRs Securities Available for Sale Securities at Fair Value Through Income Balance at January 1, 2019 $ 18,571 $ 25,114 $ 39,361 $ 11,361 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — (4,291 ) — — Other noninterest income 213 — — 494 Gain recognized in accumulated other comprehensive income — — 1,010 — Purchases, issuances, sales and settlements: Originations — 706 — — Settlements (511 ) — (1,819 ) (240 ) Balance at June 30, 2019 $ 18,273 $ 21,529 $ 38,552 $ 11,615 Balance at January 1, 2018 $ 26,611 $ 24,182 $ 42,015 $ 12,033 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — 563 — — Other noninterest income (387 ) — — (390 ) Loss recognized in accumulated other comprehensive income — — (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 ____________________________ (1) Total mortgage banking revenue includes changes in fair value due to market changes and run-off. 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 1, 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 includes, but is not limited to 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. In order to ensure the fair values are consistent with Accounting Standards Codification ("ASC") 820, Fair Value Measurements and Disclosures , the Company periodically checks the fair value by comparing them to other pricing sources. The third-party pricing service is subject to an annual review of internal controls in accordance with the Statement on Standards for Attestation Engagement No.16, which was 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 ("MSRs") 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: June 30, 2019 December 31, 2018 Prepayment speed 13.01 % 9.90 % Discount rate 10.18 10.42 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 are 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, 2019 , and December 31, 2018 , 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, 2019 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 34,401 $ 33,470 $ 931 Commercial real estate loans held for investment (2) 18,273 17,880 393 Securities carried at fair value through income 11,615 11,263 352 Total $ 64,289 $ 62,613 $ 1,676 ____________________________ (1) A total of $2.0 million of loans held for sale were designated as nonaccrual or 90 days or more past due at June 30, 2019 . Of this balance, $1.5 million was guaranteed by U.S. Government agencies. (2) There were no commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or 90 days or more past due at June 30, 2019 . December 31, 2018 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 21,562 $ 21,173 $ 389 Commercial real estate loans held for investment (2) 18,571 18,391 180 Securities carried at fair value through income 11,361 11,503 (142 ) Total $ 51,494 $ 51,067 $ 427 ____________________________ (1) A total of $741,000 of loans held for sale were designated as nonaccrual or 90 days or more past due at December 31, 2018 . Of this balance, $582,000 was guaranteed by U.S. Government agencies. (2) There were no commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or 90 days or more past due at December 31, 2018 . Changes in the fair value of assets for which the Company elected the fair value option are classified in the condensed consolidated statement of income line items reflected in the following table. Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2019 2018 2019 2018 Mortgage banking revenue: Mortgage loans held for sale $ 504 $ 271 $ 541 $ (52 ) Other income: Loans at fair value held for investment 141 (92 ) 213 (387 ) Securities carried at fair value through income 345 (80 ) 494 (390 ) Total impact on other income (1) 486 (172 ) 707 (777 ) Total fair value option impact on noninterest income $ 990 $ 99 $ 1,248 $ (829 ) ____________________________ (1) The fair value option impact on other income is offset by the derivative gain/loss recognized in other income. Please see Note 7 - 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 creditworthiness of each issuer. Credit spreads ranged from 126 to 227 basis points at both June 30, 2019 , and December 31, 2018 . The Company believes the fair value approximates the price it would receive upon a sale in an orderly market transaction ("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 both June 30, 2019 , and December 31, 2018 . 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 $49.0 million at June 30, 2019 , and are shown on the face of the condensed consolidated 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 that do not have readily determinable fair values. The gain recognized during the six months ended June 30, 2019, and June 30, 2018, on equity securities without readily determinable fair values was $367,000 and $2.0 million , respectively. Government National Mortgage Association Repurchase Asset The Company recorded $24.0 million and $30.6 million , respectively, at June 30, 2019 , and December 31, 2018 , for Government National Mortgage Association ("GNMA") repurchase assets included in mortgage loans held for sale on the condensed consolidated 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 7 - 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 approximately $1.2 million and $1.4 million at June 30, 2019 , and December 31, 2018 , respectively. Non-Financial Assets Foreclosed assets held for sale are the only non-financial assets valued on a non-recurring basis that 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 $3.6 million at June 30, 2019 , and $3.7 million at December 31, 2018 . At June 30, 2019 , the Company had $2.6 million 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, 2019 December 31, 2018 Financial assets: Carrying Estimated Carrying Value Estimated Fair Value Level 1 inputs: Cash and cash equivalents $ 199,560 $ 199,560 $ 116,678 $ 116,678 Level 2 inputs: Securities held to maturity 28,897 29,334 19,169 19,136 Non-marketable equity securities held in other financial institutions 49,008 49,008 42,149 42,149 Accrued interest and loan fees receivable 16,789 16,789 16,454 16,454 Level 3 inputs: Loans held for investment, net (1) 3,929,641 3,764,158 3,736,331 3,605,142 Financial liabilities: Level 2 inputs: Deposits 3,855,012 3,711,638 3,783,138 3,537,283 FHLB advances and other borrowings 601,346 616,875 445,224 444,286 Junior subordinated debentures 9,657 10,719 9,644 10,723 Accrued interest payable 3,245 3,245 2,679 2,679 ____________________________ (1) Loans held for investment, net does not include loans for which the fair value option had been elected at June 30, 2019 , or December 31, 2018 , as these loans are carried at fair value on a recurring basis.

Leases

Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Leases	Note 6 - Leases The Company adopted ASU No. 2016-02 — Leases (Topic 842) as of January 1, 2019, and recognized a $321,000 cumulative effect adjustment credit, net of tax, to retained earnings. The Company elected the package of practical expedients, which among other things, does not require reassessment of lease classification. The Company determines if an arrangement is a lease at inception. Operating lease assets are included in accrued interest receivable and other assets, operating lease liabilities are included in accrued expenses and other liabilities in the Company's consolidated balance sheets. The Company has made an accounting policy election not to recognize short-term lease assets and liabilities (less than a 12-month term) or immaterial equipment and server space leases in its balance sheets, the Company recognizes the lease expense for these leases on a straight-line basis over the life of the lease. The Company has no material finance leases. ROU assets represent the Company's right to use an underlying asset for the lease term and lease liabilities represent the Company's obligation to make lease payments arising from the lease. ROU lease assets and liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. The Company uses an estimated incremental collateralized borrowing rate, which is derived from information available at the lease commencement date and gives consideration to the applicable FHLB borrowing rates, when determining the present value of lease payments. The Company's lease term includes options to extend the lease when it is reasonably certain that the Company will exercise that option. The Company's lease agreements do not contain any residual value guarantees. All of the Company's operating long-term leases are real estate leases, which are accounted for as a single lease component. The Company leases certain real estate for its banking and insurance operations, as well as certain equipment, under non-cancelable operating leases that expire at various dates through 2038. The balance sheet details and components of the Company's lease expense were as follows: (Dollars in thousands) June 30, 2019 Operating lease right of use assets (included in Accrued interest receivable and other assets) $ 25,334 Operating lease liabilities (included in Accrued expenses and other liabilities) 27,302 Finance lease liabilities (included in Accrued expenses and other liabilities) 380 Weighted average remaining lease term (years) - operating leases 9.94 Weighted average discount rate - operating leases 3.48 % (Dollars in thousands) Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Lease expense: Operating lease expense $ 1,186 $ 2,332 Other lease expense 62 124 Total lease expense $ 1,248 $ 2,456 Right of use assets obtained in exchange for new operating lease liabilities $ — $ 940 Total lease expense was $1.0 million and $2.0 million for the three and six months ended June 30, 2018 . Maturities of operating lease liabilities at June 30, 2019 were as follows: June 30, 2019 Year 1 $ 4,750 Year 2 4,290 Year 3 3,806 Year 4 3,609 Year 5 3,031 Year 6 and thereafter 13,292 Total lease payments 32,778 Less: Imputed interest 5,476 Total lease obligations $ 27,302 The Company had one sale-leaseback transaction from 2017 that resulted in a loss on sale. The loss was previously deferred and was being amortized to lease expense over the term of the lease. Upon the Company's adoption of ASU 842, the deferred loss of $962,000 was combined with the ROU asset. Supplemental cash flow related to leases was as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Cash paid for operating leases $ 1,200 $ 2,373
Leases	Note 6 - Leases The Company adopted ASU No. 2016-02 — Leases (Topic 842) as of January 1, 2019, and recognized a $321,000 cumulative effect adjustment credit, net of tax, to retained earnings. The Company elected the package of practical expedients, which among other things, does not require reassessment of lease classification. The Company determines if an arrangement is a lease at inception. Operating lease assets are included in accrued interest receivable and other assets, operating lease liabilities are included in accrued expenses and other liabilities in the Company's consolidated balance sheets. The Company has made an accounting policy election not to recognize short-term lease assets and liabilities (less than a 12-month term) or immaterial equipment and server space leases in its balance sheets, the Company recognizes the lease expense for these leases on a straight-line basis over the life of the lease. The Company has no material finance leases. ROU assets represent the Company's right to use an underlying asset for the lease term and lease liabilities represent the Company's obligation to make lease payments arising from the lease. ROU lease assets and liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. The Company uses an estimated incremental collateralized borrowing rate, which is derived from information available at the lease commencement date and gives consideration to the applicable FHLB borrowing rates, when determining the present value of lease payments. The Company's lease term includes options to extend the lease when it is reasonably certain that the Company will exercise that option. The Company's lease agreements do not contain any residual value guarantees. All of the Company's operating long-term leases are real estate leases, which are accounted for as a single lease component. The Company leases certain real estate for its banking and insurance operations, as well as certain equipment, under non-cancelable operating leases that expire at various dates through 2038. The balance sheet details and components of the Company's lease expense were as follows: (Dollars in thousands) June 30, 2019 Operating lease right of use assets (included in Accrued interest receivable and other assets) $ 25,334 Operating lease liabilities (included in Accrued expenses and other liabilities) 27,302 Finance lease liabilities (included in Accrued expenses and other liabilities) 380 Weighted average remaining lease term (years) - operating leases 9.94 Weighted average discount rate - operating leases 3.48 % (Dollars in thousands) Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Lease expense: Operating lease expense $ 1,186 $ 2,332 Other lease expense 62 124 Total lease expense $ 1,248 $ 2,456 Right of use assets obtained in exchange for new operating lease liabilities $ — $ 940 Total lease expense was $1.0 million and $2.0 million for the three and six months ended June 30, 2018 . Maturities of operating lease liabilities at June 30, 2019 were as follows: June 30, 2019 Year 1 $ 4,750 Year 2 4,290 Year 3 3,806 Year 4 3,609 Year 5 3,031 Year 6 and thereafter 13,292 Total lease payments 32,778 Less: Imputed interest 5,476 Total lease obligations $ 27,302 The Company had one sale-leaseback transaction from 2017 that resulted in a loss on sale. The loss was previously deferred and was being amortized to lease expense over the term of the lease. Upon the Company's adoption of ASU 842, the deferred loss of $962,000 was combined with the ROU asset. Supplemental cash flow related to leases was as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Cash paid for operating leases $ 1,200 $ 2,373
Leases	Note 6 - Leases The Company adopted ASU No. 2016-02 — Leases (Topic 842) as of January 1, 2019, and recognized a $321,000 cumulative effect adjustment credit, net of tax, to retained earnings. The Company elected the package of practical expedients, which among other things, does not require reassessment of lease classification. The Company determines if an arrangement is a lease at inception. Operating lease assets are included in accrued interest receivable and other assets, operating lease liabilities are included in accrued expenses and other liabilities in the Company's consolidated balance sheets. The Company has made an accounting policy election not to recognize short-term lease assets and liabilities (less than a 12-month term) or immaterial equipment and server space leases in its balance sheets, the Company recognizes the lease expense for these leases on a straight-line basis over the life of the lease. The Company has no material finance leases. ROU assets represent the Company's right to use an underlying asset for the lease term and lease liabilities represent the Company's obligation to make lease payments arising from the lease. ROU lease assets and liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. The Company uses an estimated incremental collateralized borrowing rate, which is derived from information available at the lease commencement date and gives consideration to the applicable FHLB borrowing rates, when determining the present value of lease payments. The Company's lease term includes options to extend the lease when it is reasonably certain that the Company will exercise that option. The Company's lease agreements do not contain any residual value guarantees. All of the Company's operating long-term leases are real estate leases, which are accounted for as a single lease component. The Company leases certain real estate for its banking and insurance operations, as well as certain equipment, under non-cancelable operating leases that expire at various dates through 2038. The balance sheet details and components of the Company's lease expense were as follows: (Dollars in thousands) June 30, 2019 Operating lease right of use assets (included in Accrued interest receivable and other assets) $ 25,334 Operating lease liabilities (included in Accrued expenses and other liabilities) 27,302 Finance lease liabilities (included in Accrued expenses and other liabilities) 380 Weighted average remaining lease term (years) - operating leases 9.94 Weighted average discount rate - operating leases 3.48 % (Dollars in thousands) Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Lease expense: Operating lease expense $ 1,186 $ 2,332 Other lease expense 62 124 Total lease expense $ 1,248 $ 2,456 Right of use assets obtained in exchange for new operating lease liabilities $ — $ 940 Total lease expense was $1.0 million and $2.0 million for the three and six months ended June 30, 2018 . Maturities of operating lease liabilities at June 30, 2019 were as follows: June 30, 2019 Year 1 $ 4,750 Year 2 4,290 Year 3 3,806 Year 4 3,609 Year 5 3,031 Year 6 and thereafter 13,292 Total lease payments 32,778 Less: Imputed interest 5,476 Total lease obligations $ 27,302 The Company had one sale-leaseback transaction from 2017 that resulted in a loss on sale. The loss was previously deferred and was being amortized to lease expense over the term of the lease. Upon the Company's adoption of ASU 842, the deferred loss of $962,000 was combined with the ROU asset. Supplemental cash flow related to leases was as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Cash paid for operating leases $ 1,200 $ 2,373

Mortgage Banking

Mortgage Banking	6 Months Ended
	Jun. 30, 2019
Mortgage Banking [Abstract]
Mortgage Banking	Note 7 - Mortgage Banking The following table presents the Company's revenue from mortgage banking operations: (Dollars in thousands) Three Months Ended June 30, Six Months Ended June 30, Mortgage banking revenue 2019 2018 2019 2018 Origination $ 235 $ 242 $ 365 $ 452 Gain on sale of loans held for sale 1,275 1,336 2,372 3,360 Servicing 1,646 1,774 3,345 3,611 Total gross mortgage revenue 3,156 3,352 6,082 7,423 Mortgage derivatives gain (loss) 807 311 1,017 (228 ) MSR change due to payoffs and paydowns (918 ) (1,047 ) (1,636 ) (1,831 ) MSR and hedge fair value adjustment 207 (299 ) 395 (678 ) Gain on MSR sale (1) — — — 25 Mortgage banking revenue $ 3,252 $ 2,317 $ 5,858 $ 4,711 ____________________________ (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 forward contracts on mortgage-backed securities to mitigate the impact of changes in fair value of MSRs. See Note 8 - 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) 2019 2018 2019 2018 Balance at beginning of period $ 23,407 $ 25,999 $ 25,114 $ 24,182 Origination of servicing rights 423 450 706 993 Change in fair value, including amortization, net (2,301 ) (711 ) (4,291 ) 563 Balance at end of period $ 21,529 $ 25,738 $ 21,529 $ 25,738 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, which the Company refers 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 claims may be made until the loan is paid in full. When a putback claim is received, the Company evaluates the claim and takes appropriate actions based on the nature of the claim. The Company is required by Federal National Mortgage Association and Federal Home Loan Mortgage Corporation to provide a response to putback claims within 60 days of the date of receipt. There were no mortgage loan servicing putback expenses incurred by the Company for any of the three or six months ended June 30, 2019 or 2018. At both June 30, 2019 , and December 31, 2018 , the reserve for mortgage loan servicing putback expenses totaled $196,000 . There is inherent uncertainty in reasonably estimating the requirement for reserves against future mortgage loan servicing putback expenses. Future putback expenses depend on many subjective factors, including the review procedures of the purchasers, 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 a delinquent loan for an amount equal to 100% 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 included in the balance sheet as mortgage loans held for sale, regardless of whether the Company intends to exercise the buy-back option. These loans totaled $24.0 million and $30.6 million at June 30, 2019 , and December 31, 2018 , respectively, and were recorded as mortgage loans held for sale, at the lower of cost or fair value with a corresponding liability in FHLB advances and other borrowings on the Company's condensed consolidated balance sheets.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Note 8 - 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 condensed consolidated statement of income on a recurring basis. Cash Flow Hedges of Interest Rate Risk The Company is a party to two interest rate swap agreements under which the Company receives interest at a variable rate and pays at a fixed rate. The derivative instruments represented by the swap agreements are designated as cash flow hedges of the Company's forecasted variable cash flows under its junior subordinated debentures. During the term of the swap agreements, the effective portion of changes in the fair value of the derivative instruments 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 changes in fair value of the derivatives recognized directly in earnings. The entire swap fair values will be reclassified into earnings before the respective expiration dates of the swap agreements. 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 without 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 contracts 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 condensed consolidated balance sheets at June 30, 2019 , and December 31, 2018 , 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, 2019 and 2018 : (Dollars in thousands) Notional Amounts (1) Fair Values Derivatives designated as cash flow hedging instruments: June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Interest rate swaps included in other assets (liabilities) $ 10,500 $ 10,500 $ (106 ) $ 152 Derivatives not designated as hedging instruments: Interest rate swaps included in other assets $ 151,616 $ 127,512 $ 7,885 $ 2,302 Interest rate swaps included in other liabilities 181,050 145,857 (8,823 ) (2,625 ) Forward commitments to purchase mortgage-backed securities included in other assets 240,000 140,000 552 709 Forward commitments to sell residential mortgage loans included in other liabilities 65,350 24,750 (258 ) (221 ) Interest rate-lock commitments on residential mortgage loans included in other assets 48,191 16,244 913 400 $ 686,207 $ 454,363 $ 269 $ 565 ____________________________ (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 condensed consolidated balance sheets. The weighted-average interest rates paid and received for interest rate swaps at June 30, 2019 , were as follows: Weighted-Average Interest rate swaps: Interest Rate Paid Interest Rate Received Cash flow hedges 4.81 % 5.25 % Non-hedging interest rate swaps - financial institution counterparties 5.02 4.66 Non-hedging interest rate swaps - customer counterparties 4.72 5.06 Gains and losses recognized on derivative instruments not designated as hedging instruments were as follows: (Dollars in thousands) Three Months Ended June 30, Six Months Ended June 30, Derivatives not designated as hedging instruments: 2019 2018 2019 2018 Amount of gain (loss) recognized in mortgage banking revenue (1) $ 1,587 $ (545 ) $ 2,898 $ (2,206 ) Amount of (loss) gain recognized in other non-interest income (391 ) 215 (615 ) 738 ____________________________ (1) Gains and losses on these instruments are largely offset by market fluctuations in MSRs. See Note 7 - Mortgage Banking for more information on components of mortgage banking revenue. Some interest rate swaps included in other assets were 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, 2019 , and December 31, 2018 , the Company had cash collateral on deposit with swap counterparties totaling $9.3 million and $1.9 million , respectively. These amounts are included in interest-bearing deposits in banks in the condensed consolidated balance sheets and are considered restricted cash until such time as the underlying swaps are settled.

Stock and Incentive Compensatio

Stock and Incentive Compensation Plans	6 Months Ended
	Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
Stock and Incentive Compensation Plans	Note 9 - 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 at June 30, 2019 . 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, 2019 , the maximum number of shares of the Company's common stock available for issuance under the 2012 Plan was 956,859 shares. Share-based compensation cost charged to income for the three and six months ended June 30, 2019 and 2018 , is presented below: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2019 2018 2019 2018 Restricted stock $ 564 $ 223 $ 1,034 $ 417 Related tax benefits recognized in net income 118 47 217 88 Restricted Stock Grants The Company's restricted stock grants are time-vested awards and are granted to the Company's 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 expensed on a straight-line basis 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, 2019 2018 Shares Weighted Average Grant-Date Fair Value Shares Weighted Average Grant-Date Fair Value Nonvested shares, January 1, 174,407 $ 35.01 61,293 $ 24.61 Granted 30,098 32.94 39,151 35.21 Vested (23,691 ) 30.41 (14,632 ) 24.48 Forfeited (2,419 ) 28.24 — — Nonvested shares, June 30, 178,395 $ 35.36 85,812 $ 29.47 During the six months ended June 30, 2019 , no shares were retired by the Company upon vesting of restricted stock awards. During the six months ended June 30, 2018 , award recipients surrendered, and the Company retired 2,187 shares to cover taxes owed upon the vesting of restricted stock awards. At June 30, 2019 , there was $5.2 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 2.83 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 certain business combinations. 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 rates, 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, 2019 and 2018 . (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, 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 Six Months Ended June 30, 2019 Outstanding at January 1, 2019 274,000 $ 10.38 6.75 $ 6,493 Exercised (20,000 ) 8.25 — — Outstanding at June 30, 2019 254,000 10.55 6.31 5,703 Exercisable at June 30, 2019 254,000 $ 10.55 6.31 $ 5,703

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Note 10 - Income Taxes The provision for income taxes was as follows: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2019 2018 2019 2018 Federal income taxes: Current $ 3,179 $ (138 ) $ 6,345 $ 2,037 Deferred (620 ) 2,658 (956 ) 3,159 State income taxes: Current 243 268 512 344 Deferred (20 ) (28 ) (30 ) 4 Income tax expense $ 2,782 $ 2,760 $ 5,871 $ 5,544 Effective income tax rate 18.5 % 17.9 % 18.2 % 17.5 % The effective income tax rates differed from the U.S. statutory federal income tax rates of 21% during 2019 and 2018, 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. 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. 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 2015.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income	Note 11 - 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, 2019 $ (2,601 ) $ 121 $ (2,480 ) Net change 8,303 (204 ) 8,099 Balance at June 30, 2019 $ 5,702 $ (83 ) $ 5,619 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 ) ____________________________ (1) During the first quarter of 2018, the Company adopted ASU 2018-02. The ASU was issued by the 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.

Capital and Regulatory Matters

Capital and Regulatory Matters	6 Months Ended
	Jun. 30, 2019
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 reached 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, which includes dividend payments, stock repurchases and discretionary bonus payments 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, 2019 , and December 31, 2018 , that the Company and the Bank met all capital adequacy requirements to which they are subject, including the capital buffer requirement. At June 30, 2019 , and December 31, 2018 , 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 below. The actual capital amounts and ratios of the Company and Bank at June 30, 2019 , and December 31, 2018 , 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, 2019 Amount Ratio Amount Ratio Amount Ratio Common Equity Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. $ 546,659 11.93 % $ 320,847 7.00 % N/A N/A Origin Bank 534,753 11.70 319,987 7.00 $ 297,131 6.50 % Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 555,990 12.13 389,599 8.50 N/A N/A Origin Bank 534,753 11.70 388,556 8.50 365,699 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 594,507 12.97 481,267 10.50 N/A N/A Origin Bank 573,270 12.54 479,984 10.50 457,128 10.00 Leverage Ratio Origin Bancorp, Inc. 555,990 11.10 200,377 4.00 N/A N/A Origin Bank 534,753 10.70 199,913 4.00 249,892 5.00 December 31, 2018 Common Equity Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. $ 519,468 11.94 % $ 304,431 7.00 % N/A N/A Origin Bank 508,826 11.73 303,621 7.00 $ 281,934 6.50 % Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 528,786 12.16 369,668 8.50 N/A N/A Origin Bank 508,826 11.73 368,683 8.50 346,996 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 564,437 12.98 456,647 10.50 N/A N/A Origin Bank 544,477 12.55 455,430 10.50 433,743 10.00 Leverage Ratio Origin Bancorp, Inc. 528,786 11.21 188,711 4.00 N/A N/A Origin Bank 508,826 10.81 188,229 4.00 235,287 5.00 In the ordinary course of business, the Company depends on 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, 2019 , the Bank could pay aggregate dividends of up to $71.4 million to the Company without prior regulatory approval.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2019
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, 2019 December 31, 2018 Commitments to extend credit $ 1,289,157 $ 1,178,735 Standby letters of credit 42,393 46,860 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 June 30, 2019 , and December 31, 2018 , these credit card guarantees totaled $558,075 and $772,000 , respectively. 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, 2019 , and December 31, 2018 , the Company had FHLB letters of credit totaling $172.2 million and $172.0 million , respectively, available to secure public deposits, and for other purposes required or permitted by law. Management establishes an asset-specific allowance for certain lending-related commitments 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 $1.8 million and $1.4 million at June 30, 2019 , and December 31, 2018 , respectively, and is included in other liabilities in the accompanying condensed consolidated balance sheets. Loss Contingencies From time to time the Company is also party to various legal actions arising in the ordinary course of business. At this time, management does not expect that loss contingencies, if any, arising from any such proceedings, either individually or in the aggregate, would have a material adverse effect on the consolidated financial position or liquidity of the Company.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2019
Subsequent Events [Abstract]
Subsequent Events	Note 14 - Subsequent Events Company repurchased 300,000 shares of its common stock pursuant to a previously announced stock repurchase plan for a total purchase price of $10.1 million , settling on August 2, 2019.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation . The condensed consolidated financial statements in this quarterly report on Form 10-Q include the accounts of the Company and all other entities in which Origin Bancorp, Inc. has a controlling financial interest, including the Bank and Davison Insurance Agency, LLC. All significant intercompany balances and transactions have been eliminated in consolidation. The condensed consolidated financial statements in this quarterly report on Form 10-Q have not been audited by an independent registered public accounting firm, excluding the figures as of December 31, 2018, but in the opinion of management, reflect all adjustments necessary for fair presentation of the Company's financial position and results of operations for the periods presented. These condensed consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. 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 U.S. GAAP for complete financial statements. These condensed consolidated statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2018, included in the Company's annual report on Form 10-K ("2018 Form 10-K") filed with the SEC. Operating results for the interim periods disclosed herein are not necessarily indicative of results that may be expected for a full year. Certain prior year amounts have been reclassified to conform to the current year financial statement presentations. These reclassifications did not impact previously reported net income or comprehensive income. The Company's significant accounting policies, including those for loans, impaired loans, non-accrual loans and allowance for loan losses, are described in Note 1 of the Notes to Consolidated Financial Statements for the year ended December 31, 2018, included in the Company's 2018 Form 10-K ("Note 1"). Except as described in the following paragraph, there have been no changes to the Company's significant accounting policies since December 31, 2018. Effective January 1, 2019, two accounting policies were revised and updated from the accounting policies described in Note 1. Effective January 1, 2019, the Company began calculating earnings per share using the treasury method due to the conversion and redemption of all material participating securities during 2018, which eliminated the requirement to calculate earnings per share using the two-class method. See the discussion below titled "Earnings Per Share " for an explanation of these methodologies. Additionally, on January 1, 2019, the Company adopted Accounting Standards Update ("ASU") 2016-02, Leases (Topic 842) , resulting in a change to the Company's lease accounting policies. See the discussion below titled "Effect of Recently Adopted Accounting Standards" for a description of policy revisions resulting from the Company's adoption of ASU 2016-02. For interim reporting purposes, the Company follows the same accounting policies and considers each interim period as an integral part of an annual period
Use of Estimates	Use of Estimates . The preparation of financial statements in conformity with U.S. 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 include 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 Company's consolidated financial statements in the period they are deemed necessary. While management uses its best judgment, actual results could differ from those estimates.
Earnings Per Share	Earnings Per Share . Basic and diluted earnings per common share for periods beginning after December 31, 2018, are calculated using the treasury method. Under the treasury method, basic earnings per share is calculated as net income divided by the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the dilutive effect of additional potential common shares issuable under stock options and restricted stock awards. Basic and diluted earnings per common share for periods ending on or before December 31, 2018, were calculated using the two-class method. The two-class method is an earnings allocation formula that determines earnings per share for each share of common stock and participating securities according to dividends declared (distributed earnings) and participation rights in undistributed earnings. Distributed and undistributed earnings were allocated between common and participating security stockholders based on their respective rights to receive dividends. Share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents were considered participating securities (e.g., restricted stock grants). Preferred stock that receives dividends based on dividends paid on common stock was also considered a participating security (e.g., Series D preferred stock). Net income attributable to common stockholders was then divided by the weighted average number of common shares outstanding during the period, net of participating securities. Diluted income per common share under the two-class method considers common stock issuable under the assumed release of unvested restricted stock awards, convertible preferred stock being converted to common stock, and the assumed exercise of stock options granted. The dilutive effect of share-based payment awards that were not deemed to be participating securities was calculated using the treasury stock method, which assumes that the proceeds from exercise were used to purchase common stock at the average market price for the period. The dilutive effect of participating securities was calculated using the more dilutive of the treasury stock method (which assumes that the participating securities are exercised/released) or the two-class method (which assumes that the participating securities are not exercised/released and earnings are reallocated between common and participating security stockholders). Potentially dilutive common stock equivalents were excluded from the computation of diluted earnings per common share in periods in which the effect would be antidilutive.
Effect of Recently Adopted Accounting Standards and Effect of Newly Issued But Not Yet Effective Accounting Standards	Effect of Recently Adopted Accounting Standards ASU No. 2016-02 — Leases (Topic 842). ASU 2016-02 requires lessees to recognize a lease liability and a right-of-use ("ROU") asset on the balance sheet for operating leases. Accounting for finance (formerly known as capital) leases is substantially unchanged. The Company adopted this ASU as of January 1, 2019. Please see Note 6 - Leases for more information. Effect of Newly Issued But Not Yet Effective Accounting Standards ASU No. 2018-13, Fair Value Measurement - (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement. The amendments in this ASU modify the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement , based on the concepts in Financial Accounting Standards Board ("FASB") Concepts Statement, Conceptual Framework for Financial Reporting—Chapter 8: Notes to Financial Statements, including the consideration of costs and benefits. For public business entities that file reports with the SEC, the amendments in the update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company is evaluating the impact of this ASU on the consolidated financial statements and disclosures. ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This ASU 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 U.S. 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 U.S. 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 allowance for credit 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 its results of operations, financial position or disclosures. However, the Company has begun developing processes and procedures to ensure the Company is compliant at the required adoption date. Among other things, the Company has (1) selected a third-party vendor to provide a software solution, (2) evaluated data needs and data gaps (3) considered pooling criteria, (4) evaluated different loss estimation methodologies, (5) considered various forecasting models and forecast periods, and (6) begun evaluating accounting processes and internal controls that will be impacted by the adoption of the new 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. During the first quarter of 2018, the Company adopted ASU 2018-02. The ASU was issued by the 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.
Loans, Nonaccrual Status	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.
Loans, Held-for-Sale	The Company elects the fair value option for recording certain residential mortgage loans held for sale, as well as certain commercial real estate and commercial and industrial loans, in accordance with U.S. GAAP.
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 condensed consolidated 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 that 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; and • 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. Derivatives Fair values for interest rate swap agreements are based upon the amounts that are 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. 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 creditworthiness of each issuer. Credit spreads ranged from 126 to 227 basis points at both June 30, 2019 , and December 31, 2018 . The Company believes the fair value approximates the price it would receive upon a sale in an orderly market transaction ("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 both June 30, 2019 , and December 31, 2018 . 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 $49.0 million at June 30, 2019 , and are shown on the face of the condensed consolidated 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 that do not have readily determinable fair values. The gain recognized during the six months ended June 30, 2019, and June 30, 2018, on equity securities without readily determinable fair values was $367,000 and $2.0 million , respectively. Government National Mortgage Association Repurchase Asset The Company recorded $24.0 million and $30.6 million , respectively, at June 30, 2019 , and December 31, 2018 , for Government National Mortgage Association ("GNMA") repurchase assets included in mortgage loans held for sale on the condensed consolidated 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 7 - 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 approximately $1.2 million and $1.4 million at June 30, 2019 , and December 31, 2018 , respectively. Non-Financial Assets Foreclosed assets held for sale are the only non-financial assets valued on a non-recurring basis that 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. 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. Securities Available for Sale Securities classified as available for sale are reported at fair value utilizing Level 1, 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 includes, but is not limited to 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. In order to ensure the fair values are consistent with Accounting Standards Codification ("ASC") 820, Fair Value Measurements and Disclosures , the Company periodically checks the fair value by comparing them to other pricing sources. The third-party pricing service is subject to an annual review of internal controls in accordance with the Statement on Standards for Attestation Engagement No.16, which was 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 ("MSRs") The carrying amounts of the MSRs equal fair value and are valued on a discounted cash flow valuation technique.
Derivative Financial Instruments	Some interest rate swaps included in other assets were 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. Note 8 - 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 condensed consolidated statement of income on a recurring basis. Cash Flow Hedges of Interest Rate Risk The Company is a party to two interest rate swap agreements under which the Company receives interest at a variable rate and pays at a fixed rate. The derivative instruments represented by the swap agreements are designated as cash flow hedges of the Company's forecasted variable cash flows under its junior subordinated debentures. During the term of the swap agreements, the effective portion of changes in the fair value of the derivative instruments 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 changes in fair value of the derivatives recognized directly in earnings. The entire swap fair values will be reclassified into earnings before the respective expiration dates of the swap agreements. 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 without 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 contracts 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.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2019
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) 2019 (1) 2018 (1) 2019 (1) 2018 (1) Basic earnings per common share Net income $ 12,283 $ 12,702 $ 26,438 $ 26,109 Less: Dividends to preferred stock — 808 — 1,923 Less: Net income allocated to participating stockholders — 40 — 921 Net income available to common stockholders $ 12,283 $ 11,854 $ 26,438 $ 23,265 Weighted average common shares outstanding 23,585,040 22,107,489 23,577,335 20,451,960 Basic earnings per common share $ 0.52 $ 0.54 $ 1.12 $ 1.14 Diluted earnings per common share Diluted earnings applicable to common stockholders (2) $ 12,283 $ 11,876 $ 26,438 $ 23,318 Weighted average diluted common shares outstanding: Weighted average common shares outstanding 23,585,040 22,107,489 23,577,335 20,451,960 Dilutive effect of stock-based awards 201,606 274,514 204,023 274,514 Weighted average diluted common shares outstanding 23,786,646 22,382,003 23,781,358 20,726,474 Diluted earnings per common share $ 0.52 $ 0.53 $ 1.11 $ 1.13 ____________________________ (1) Series D preferred stockholders were participating stockholders during the three and six months ended June 30, 2018, requiring the Company to calculate earnings per share using the two-class method. Subsequent to the conversion of all Series D preferred stock in June 2018, the Company used the treasury method for the computation of earnings per share. (2) The two-class method for the computation of earnings per share was used for the three and six months ended June 30, 2018. Net income available 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)

Securities (Tables)	6 Months Ended
	Jun. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Summary of Amortized Cost and Estimated Fair Value of 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 Gross Gross Fair June 30, 2019 Available for sale: State and municipal securities $ 91,894 $ 2,574 $ (5 ) $ 94,463 Corporate bonds 11,017 643 — 11,660 U.S. Government and agency securities 61,578 267 (8 ) 61,837 Commercial mortgage-backed securities 12,082 339 — 12,421 Residential mortgage-backed securities 175,853 2,572 (332 ) 178,093 Commercial collateralized mortgage obligations 4,360 53 — 4,413 Residential collateralized mortgage obligations 185,089 1,471 (467 ) 186,093 Total $ 541,873 $ 7,919 $ (812 ) $ 548,980 Held to maturity: State and municipal securities $ 28,897 $ 437 $ — $ 29,334 Securities carried at fair value through income: State and municipal securities (1) $ 11,263 $ — $ — $ 11,615 December 31, 2018 Available for sale: State and municipal securities $ 99,780 $ 1,266 $ (163 ) $ 100,883 Corporate bonds 10,997 102 (65 ) 11,034 U.S. Government and agency securities 61,122 82 (54 ) 61,150 Commercial mortgage-backed securities 16,672 94 — 16,766 Residential mortgage-backed securities 188,058 417 (2,160 ) 186,315 Residential collateralized mortgage obligations 202,422 315 (3,241 ) 199,496 Total $ 579,051 $ 2,276 $ (5,683 ) $ 575,644 Held to maturity: State and municipal securities $ 19,169 $ — $ (33 ) $ 19,136 Securities carried at fair value through income: State and municipal securities (1) $ 11,503 $ — $ — $ 11,361 ____________________________ (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 condensed consolidated statements of income. See Note 5 - Fair Value of Financial Instruments for more information.
Schedule of Securities with Unrealized Loss	Securities with unrealized losses at June 30, 2019 , and December 31, 2018 , aggregated by investment category and those individual securities that have been in a continuous unrealized loss position for less than 12 months and for 12 months or more were as follows: (Dollars in thousands) Less than 12 Months 12 Months or More Total June 30, 2019 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: State and municipal securities $ 1,489 $ (1 ) $ 1,187 $ (4 ) $ 2,676 $ (5 ) U.S. Government and agency securities 731 (8 ) — — 731 (8 ) Residential mortgage-backed securities 907 (2 ) 54,880 (330 ) 55,787 (332 ) Residential collateralized mortgage obligations 7,358 (29 ) 46,569 (438 ) 53,927 (467 ) Total $ 10,485 $ (40 ) $ 102,636 $ (772 ) $ 113,121 $ (812 ) Held to maturity: State and municipal securities $ — $ — $ — $ — $ — $ — December 31, 2018 Available for sale: State and municipal securities $ 13,101 $ (50 ) $ 8,463 $ (113 ) $ 21,564 $ (163 ) Corporate bonds 7,932 (65 ) — — 7,932 (65 ) U.S. Government and agency securities 56,271 (54 ) — — 56,271 (54 ) Residential mortgage-backed securities 18,836 (65 ) 77,471 (2,095 ) 96,307 (2,160 ) Residential collateralized mortgage obligations 14,711 (79 ) 120,601 (3,162 ) 135,312 (3,241 ) Total $ 110,851 $ (313 ) $ 206,535 $ (5,370 ) $ 317,386 $ (5,683 ) Held to maturity: State and municipal securities $ 13,921 $ (33 ) $ — $ — $ 13,921 $ (33 )
Securities Classified by Contractual Maturity	The following table presents the amortized cost and fair value of securities available for sale and held to maturity at June 30, 2019 , 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, 2019 Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ — $ — $ 59,863 $ 59,908 Due after one year through five years 13,687 13,784 24,594 25,037 Due after five years through ten years 10,000 10,328 75,818 78,645 Due after ten years 5,210 5,222 4,214 4,370 Commercial mortgage-backed securities — — 12,082 12,421 Residential mortgage-backed securities — — 175,853 178,093 Commercial collateralized mortgage obligations — — 4,360 4,413 Residential collateralized mortgage obligations — — 185,089 186,093 Total $ 28,897 $ 29,334 $ 541,873 $ 548,980
Securities Pledged as Collateral	The following table presents carrying amounts of securities pledged as collateral for public deposits and repurchase agreements as of the dates presented. (Dollars in thousands) June 30, 2019 December 31, 2018 Carrying value of securities pledged to secure public deposits $ 312,971 $ 364,055 Carrying value of securities pledged to repurchase agreements 40,500 48,847

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Schedule of Loans	Loans consisted of the following: (Dollars in thousands) June 30, 2019 December 31, 2018 Loans held for sale $ 58,408 $ 52,210 Loans held for investment: Loans secured by real estate: Commercial real estate $ 1,219,470 $ 1,228,402 Construction/land/land development 524,999 429,660 Residential real estate 651,988 629,714 Total real estate 2,396,457 2,287,776 Commercial and industrial 1,341,652 1,272,566 Mortgage warehouse lines of credit 224,939 207,871 Consumer 21,549 20,892 Total loans held for investment (1) 3,984,597 3,789,105 Less: Allowance for loan losses 36,683 34,203 Net loans held for investment $ 3,947,914 $ 3,754,902 ____________________________ (1) Includes net deferred loan fees of $3.5 million and $3.2 million at June 30, 2019 , and December 31, 2018 , respectively.
Recorded Investment in Loans by Credit Quality Indicator	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 has deteriorated and is at risk of further decline. • Substandard (8) This grade includes "Substandard" loans under 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 under 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 under regulatory guidelines. Loss loans are charged-off or written down when repayment is not expected. The recorded investments in loans by credit quality indicator at June 30, 2019 , and December 31, 2018 , excluding loans held for sale, were as follows: June 30, 2019 (Dollars in thousands) Pass Special Mention Substandard Doubtful Loss Total Loans secured by real estate: Commercial real estate $ 1,188,742 $ 12,803 $ 17,925 $ — $ — $ 1,219,470 Construction/land/land development 523,414 154 1,431 — — 524,999 Residential real estate 643,039 1,122 7,827 — — 651,988 Total real estate 2,355,195 14,079 27,183 — — 2,396,457 Commercial and industrial 1,265,515 26,906 49,231 — — 1,341,652 Mortgage warehouse lines of credit 224,939 — — — — 224,939 Consumer 21,393 — 156 — — 21,549 Total loans held for investment $ 3,867,042 $ 40,985 $ 76,570 $ — $ — $ 3,984,597 December 31, 2018 (Dollars in thousands) Pass Special Mention Substandard Doubtful Loss Total Loans secured by real estate: Commercial real estate $ 1,206,194 $ 3,101 $ 19,107 $ — $ — $ 1,228,402 Construction/land/land development 426,770 157 2,733 — — 429,660 Residential real estate 617,996 1,142 10,576 — — 629,714 Total real estate 2,250,960 4,400 32,416 — — 2,287,776 Commercial and industrial 1,190,718 34,964 46,884 — — 1,272,566 Mortgage warehouse lines of credit 207,871 — — — — 207,871 Consumer 20,712 — 180 — — 20,892 Total loans held for investment $ 3,670,261 $ 39,364 $ 79,480 $ — $ — $ 3,789,105
Loan Portfolio Aging Analysis	The following tables present the Company's loan portfolio aging analysis at the dates indicated: June 30, 2019 (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 $ 2,822 $ — $ 7,857 $ 10,679 $ 1,208,791 $ 1,219,470 $ — Construction/land/land development 768 249 56 1,073 523,926 524,999 — Residential real estate 663 838 3,063 4,564 647,424 651,988 — Total real estate 4,253 1,087 10,976 16,316 2,380,141 2,396,457 — Commercial and industrial 704 708 13,978 15,390 1,326,262 1,341,652 — Mortgage warehouse lines of credit — — — — 224,939 224,939 — Consumer 170 — 8 178 21,371 21,549 — Total loans held for investment $ 5,127 $ 1,795 $ 24,962 $ 31,884 $ 3,952,713 $ 3,984,597 $ — December 31, 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 $ 458 $ 1,409 $ 7,224 $ 9,091 $ 1,219,311 $ 1,228,402 $ — Construction/land/land development 2,657 — 435 3,092 426,568 429,660 — Residential real estate 2,137 527 4,149 6,813 622,901 629,714 — Total real estate 5,252 1,936 11,808 18,996 2,268,780 2,287,776 — Commercial and industrial 276 8,263 6,157 14,696 1,257,870 1,272,566 — Mortgage warehouse lines of credit — — — — 207,871 207,871 — Consumer 383 8 2 393 20,499 20,892 — Total loans held for investment $ 5,911 $ 10,207 $ 17,967 $ 34,085 $ 3,755,020 $ 3,789,105 $ —
Allowance for Loan Losses by Portfolio Segment	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, 2019 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (Benefit) (1) Ending Balance Loans secured by real estate: Commercial real estate $ 9,258 $ 106 $ 8 $ 260 $ 9,420 Construction/land/land development 3,679 38 — 300 3,941 Residential real estate 5,577 — 18 37 5,632 Commercial and industrial 16,475 622 121 1,203 17,177 Mortgage warehouse lines of credit 365 29 — (73 ) 263 Consumer 224 45 16 55 250 Total $ 35,578 $ 840 $ 163 $ 1,782 $ 36,683 ____________________________ (1) The $2.0 million provision for credit losses on the condensed consolidated statements of income includes a $1.8 million net loan loss provision and a $203,000 provision for off-balance sheet commitments for the three months ended June 30, 2019 . 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 condensed 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, 2019 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (Benefit) (1) Ending Balance Loans secured by real estate: Commercial real estate $ 8,999 $ 195 $ 59 $ 557 $ 9,420 Construction/land/land development 3,331 38 1 647 3,941 Residential real estate 5,705 — 45 (118 ) 5,632 Commercial and industrial 15,616 1,133 1,195 1,499 17,177 Mortgage warehouse lines of credit 316 29 — (24 ) 263 Consumer 236 53 23 44 250 Total $ 34,203 $ 1,448 $ 1,323 $ 2,605 $ 36,683 ____________________________ (1) The $3.0 million provision for credit losses on the condensed consolidated statements of income includes a $2.6 million net loan loss provision and a $385,000 provision for off-balance sheet commitments for the six months ended June 30, 2019 . 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 condensed 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 .
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, 2019 (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 $ 2 $ 9,418 $ 9,895 $ 1,191,302 Construction/land/land development 2 3,939 1,156 523,843 Residential real estate 8 5,624 4,704 647,284 Commercial and industrial 181 16,996 16,031 1,325,621 Mortgage warehouse lines of credit — 263 — 224,939 Consumer 3 247 131 21,418 Total $ 196 $ 36,487 $ 31,917 $ 3,934,407 ____________________________ (1) Excludes $18.3 million of commercial real estate loans 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, 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 $ 5 $ 8,994 $ 8,773 $ 1,201,058 Construction/land/land development 19 3,312 1,017 428,643 Residential real estate 68 5,637 6,876 622,838 Commercial and industrial 255 15,361 16,428 1,256,138 Mortgage warehouse lines of credit — 316 — 207,871 Consumer 19 217 184 20,708 Total $ 366 $ 33,837 $ 33,278 $ 3,737,256 ____________________________ (1) Excludes $18.6 million of commercial real estate loans 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, 2019 , or December 31, 2018 . June 30, 2019 (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 $ 12,224 $ 9,776 $ 119 $ 9,895 $ 2 Construction/land/land development 1,525 827 329 1,156 2 Residential real estate 5,584 4,274 430 4,704 8 Total real estate 19,333 14,877 878 15,755 12 Commercial and industrial 18,631 15,651 380 16,031 181 Consumer 140 — 131 131 3 Total impaired loans $ 38,104 $ 30,528 $ 1,389 $ 31,917 $ 196 December 31, 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 $ 10,894 $ 8,725 $ 48 $ 8,773 $ 5 Construction/land/land development 1,329 838 179 1,017 19 Residential real estate 7,815 6,092 784 6,876 68 Total real estate 20,038 15,655 1,011 16,666 92 Commercial and industrial 18,883 15,806 622 16,428 255 Consumer 202 — 184 184 19 Total impaired loans $ 39,123 $ 31,461 $ 1,817 $ 33,278 $ 366 The average recorded investment and interest recognized on impaired loans while classified as impaired for the three and six months ended June 30, 2019 and 2018 , were as follows: Three Months Ended June 30, 2019 2018 (Dollars in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Loans secured by real estate: Commercial real estate $ 9,880 $ 6 $ 10,093 $ 15 Construction/land/land development 1,145 2 1,368 2 Residential real estate 4,830 5 7,543 11 Total real estate 15,855 13 19,004 28 Commercial and industrial 15,885 3 13,198 56 Consumer 165 1 274 1 Total impaired loans $ 31,905 $ 17 $ 32,476 $ 85 Six Months Ended June 30, 2019 2018 (Dollars in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Loans secured by real estate: Commercial real estate $ 9,532 $ 11 $ 9,942 $ 43 Construction/land/land development 1,090 4 1,650 11 Residential real estate 5,467 12 7,619 36 Total real estate 16,089 27 19,211 90 Commercial and industrial 16,083 9 15,792 105 Consumer 172 2 266 3 Total impaired loans $ 32,344 $ 38 $ 35,269 $ 198
Non-performing (Nonaccrual) Loans Held for Investment	Non-performing (nonaccrual) loans held for investment were as follows: (Dollars in thousands) June 30, 2019 December 31, 2018 Loans secured by real estate: Commercial real estate $ 9,423 $ 8,281 Construction/land/land development 1,111 935 Residential real estate 4,978 6,668 Total real estate 15,512 15,884 Commercial and industrial 14,810 15,792 Consumer 156 180 Total nonaccrual loans $ 30,478 $ 31,856
Loans Classified as Troubled Debt Restructurings (TDRs)	The following is a summary of loans classified as TDRs. (Dollars in thousands) June 30, 2019 December 31, 2018 TDRs Nonaccrual TDRs $ 5,857 $ 5,793 Performing TDRs 2,015 2,054 Total $ 7,872 $ 7,847 The following table presents the pre-modification balance of TDR modifications that occurred during the periods indicated and the ending balances by concession type as of the period presented. Three Months Ended June 30, 2019 (Dollars in thousands) Number of Loans Restructured Pre-modification Recorded Balance Term Concessions Combination of Term and Rate Concessions Total Modifications Commercial and industrial 2 $ 789 $ 779 $ — $ 779 Consumer 1 11 11 — 11 Total 3 $ 800 $ 790 $ — $ 790 Six Months Ended June 30, 2019 (Dollars in thousands) Number of Loans Restructured Pre-modification Recorded Balance Term Concessions Combination of Term and Rate Concessions Total Modifications Construction/land/land development 1 $ 361 $ — $ 354 $ 354 Commercial and industrial 3 808 796 — 796 Consumer 1 11 11 — 11 Total 5 $ 1,180 $ 807 $ 354 $ 1,161 Three Months Ended June 30, 2018 (Dollars in thousands) Number of Loans Restructured Pre-modification Recorded Balance Term Concessions Interest Rate Concessions Combination of Term and Rate Concessions Total Modifications Residential real estate 4 $ 92 $ 51 $ 21 $ 17 $ 89 Consumer 1 33 — — 32 32 Total 5 $ 125 $ 51 $ 21 $ 49 $ 121 Six Months Ended June 30, 2018 (Dollars in thousands) Number of Loans Restructured Pre-modification Recorded Balance Term Concessions Interest Rate Concessions Combination of Term and Rate Concessions Total Modifications Residential real estate 5 $ 187 $ 51 $ 21 $ 106 $ 178 Consumer 1 33 — — 32 32 Total 6 $ 220 $ 51 $ 21 $ 138 $ 210

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value 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, 2019 , and December 31, 2018 , segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value. June 30, 2019 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 55,911 $ 38,552 $ 94,463 Corporate bonds — 11,660 — 11,660 U.S. Government and agency securities 56,254 5,583 — 61,837 Commercial mortgage-backed securities — 12,421 — 12,421 Residential mortgage-backed securities — 178,093 — 178,093 Commercial collateralized mortgage obligations — 4,413 — 4,413 Residential collateralized mortgage obligations — 186,093 — 186,093 Securities available for sale 56,254 454,174 38,552 548,980 Securities carried at fair value through income — — 11,615 11,615 Loans held for sale — 34,401 — 34,401 Loans at fair value — — 18,273 18,273 Mortgage servicing rights — — 21,529 21,529 Other assets - derivatives — 9,350 — 9,350 Total recurring fair value measurements - assets $ 56,254 $ 497,925 $ 89,969 $ 644,148 Other liabilities - derivatives $ — $ (9,187 ) $ — $ (9,187 ) Total recurring fair value measurements - liabilities $ — $ (9,187 ) $ — $ (9,187 ) December 31, 2018 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 61,522 $ 39,361 $ 100,883 Corporate bonds — 11,034 — 11,034 U.S. Government and agency securities 55,515 5,635 — 61,150 Commercial mortgage-backed securities — 16,766 — 16,766 Residential mortgage-backed securities — 186,315 — 186,315 Residential collateralized mortgage obligations — 199,496 — 199,496 Securities available for sale 55,515 480,768 39,361 575,644 Securities carried at fair value through income — — 11,361 11,361 Loans held for sale — 21,562 — 21,562 Loans at fair value — — 18,571 18,571 Mortgage servicing rights — — 25,114 25,114 Other assets - derivatives — 3,563 — 3,563 Total recurring fair value measurements - assets $ 55,515 $ 505,893 $ 94,407 $ 655,815 Other liabilities - derivatives $ — $ (2,846 ) $ — $ (2,846 ) Total recurring fair value measurements - liabilities $ — $ (2,846 ) $ — $ (2,846 )
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, 2019 and 2018 , are summarized as follows: (Dollars in thousands) Loans at Fair Value MSRs Securities Available for Sale Securities at Fair Value Through Income Balance at January 1, 2019 $ 18,571 $ 25,114 $ 39,361 $ 11,361 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — (4,291 ) — — Other noninterest income 213 — — 494 Gain recognized in accumulated other comprehensive income — — 1,010 — Purchases, issuances, sales and settlements: Originations — 706 — — Settlements (511 ) — (1,819 ) (240 ) Balance at June 30, 2019 $ 18,273 $ 21,529 $ 38,552 $ 11,615 Balance at January 1, 2018 $ 26,611 $ 24,182 $ 42,015 $ 12,033 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — 563 — — Other noninterest income (387 ) — — (390 ) Loss recognized in accumulated other comprehensive income — — (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 ____________________________ (1) Total mortgage banking revenue includes changes in fair value due to market changes and run-off.
Significant Assumptions Used to Value Mortgage Servicing Rights	The significant assumptions used to value MSRs were as follows: June 30, 2019 December 31, 2018 Prepayment speed 13.01 % 9.90 % Discount rate 10.18 10.42
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 condensed consolidated statement of income line items reflected in the following table. Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2019 2018 2019 2018 Mortgage banking revenue: Mortgage loans held for sale $ 504 $ 271 $ 541 $ (52 ) Other income: Loans at fair value held for investment 141 (92 ) 213 (387 ) Securities carried at fair value through income 345 (80 ) 494 (390 ) Total impact on other income (1) 486 (172 ) 707 (777 ) Total fair value option impact on noninterest income $ 990 $ 99 $ 1,248 $ (829 ) ____________________________ (1) The fair value option impact on other income is offset by the derivative gain/loss recognized in other income. Please see Note 7 - 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, 2019 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 34,401 $ 33,470 $ 931 Commercial real estate loans held for investment (2) 18,273 17,880 393 Securities carried at fair value through income 11,615 11,263 352 Total $ 64,289 $ 62,613 $ 1,676 ____________________________ (1) A total of $2.0 million of loans held for sale were designated as nonaccrual or 90 days or more past due at June 30, 2019 . Of this balance, $1.5 million was guaranteed by U.S. Government agencies. (2) There were no commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or 90 days or more past due at June 30, 2019 . December 31, 2018 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 21,562 $ 21,173 $ 389 Commercial real estate loans held for investment (2) 18,571 18,391 180 Securities carried at fair value through income 11,361 11,503 (142 ) Total $ 51,494 $ 51,067 $ 427 ____________________________ (1) A total of $741,000 of loans held for sale were designated as nonaccrual or 90 days or more past due at December 31, 2018 . Of this balance, $582,000 was guaranteed by U.S. Government agencies. (2) There were no commercial real estate loans for which the fair value had been elected that were designated as nonaccrual or 90 days or more past due at December 31, 2018 .
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, 2019 December 31, 2018 Financial assets: Carrying Estimated Carrying Value Estimated Fair Value Level 1 inputs: Cash and cash equivalents $ 199,560 $ 199,560 $ 116,678 $ 116,678 Level 2 inputs: Securities held to maturity 28,897 29,334 19,169 19,136 Non-marketable equity securities held in other financial institutions 49,008 49,008 42,149 42,149 Accrued interest and loan fees receivable 16,789 16,789 16,454 16,454 Level 3 inputs: Loans held for investment, net (1) 3,929,641 3,764,158 3,736,331 3,605,142 Financial liabilities: Level 2 inputs: Deposits 3,855,012 3,711,638 3,783,138 3,537,283 FHLB advances and other borrowings 601,346 616,875 445,224 444,286 Junior subordinated debentures 9,657 10,719 9,644 10,723 Accrued interest payable 3,245 3,245 2,679 2,679 ____________________________ (1) Loans held for investment, net does not include loans for which the fair value option had been elected at June 30, 2019 , or December 31, 2018 , as these loans are carried at fair value on a recurring basis.

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Balance Sheet Details	The balance sheet details and components of the Company's lease expense were as follows: (Dollars in thousands) June 30, 2019 Operating lease right of use assets (included in Accrued interest receivable and other assets) $ 25,334 Operating lease liabilities (included in Accrued expenses and other liabilities) 27,302 Finance lease liabilities (included in Accrued expenses and other liabilities) 380 Weighted average remaining lease term (years) - operating leases 9.94 Weighted average discount rate - operating leases 3.48 %
Components of Lease Expense and Supplemental Cash Flow Related to Leases	(Dollars in thousands) Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Lease expense: Operating lease expense $ 1,186 $ 2,332 Other lease expense 62 124 Total lease expense $ 1,248 $ 2,456 Right of use assets obtained in exchange for new operating lease liabilities $ — $ 940 Supplemental cash flow related to leases was as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Cash paid for operating leases $ 1,200 $ 2,373
Maturities of Operating Lease Liabilities	Maturities of operating lease liabilities at June 30, 2019 were as follows: June 30, 2019 Year 1 $ 4,750 Year 2 4,290 Year 3 3,806 Year 4 3,609 Year 5 3,031 Year 6 and thereafter 13,292 Total lease payments 32,778 Less: Imputed interest 5,476 Total lease obligations $ 27,302

Mortgage Banking (Tables)

Mortgage Banking (Tables)	6 Months Ended
	Jun. 30, 2019
Mortgage Banking [Abstract]
Mortgage Banking Operations	The following table presents the Company's revenue from mortgage banking operations: (Dollars in thousands) Three Months Ended June 30, Six Months Ended June 30, Mortgage banking revenue 2019 2018 2019 2018 Origination $ 235 $ 242 $ 365 $ 452 Gain on sale of loans held for sale 1,275 1,336 2,372 3,360 Servicing 1,646 1,774 3,345 3,611 Total gross mortgage revenue 3,156 3,352 6,082 7,423 Mortgage derivatives gain (loss) 807 311 1,017 (228 ) MSR change due to payoffs and paydowns (918 ) (1,047 ) (1,636 ) (1,831 ) MSR and hedge fair value adjustment 207 (299 ) 395 (678 ) Gain on MSR sale (1) — — — 25 Mortgage banking revenue $ 3,252 $ 2,317 $ 5,858 $ 4,711 ____________________________ (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) 2019 2018 2019 2018 Balance at beginning of period $ 23,407 $ 25,999 $ 25,114 $ 24,182 Origination of servicing rights 423 450 706 993 Change in fair value, including amortization, net (2,301 ) (711 ) (4,291 ) 563 Balance at end of period $ 21,529 $ 25,738 $ 21,529 $ 25,738

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Values of Derivative Instruments on the Balance Sheet	The following tables disclose the fair value of derivative instruments in the Company's condensed consolidated balance sheets at June 30, 2019 , and December 31, 2018 , 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, 2019 and 2018 : (Dollars in thousands) Notional Amounts (1) Fair Values Derivatives designated as cash flow hedging instruments: June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Interest rate swaps included in other assets (liabilities) $ 10,500 $ 10,500 $ (106 ) $ 152 Derivatives not designated as hedging instruments: Interest rate swaps included in other assets $ 151,616 $ 127,512 $ 7,885 $ 2,302 Interest rate swaps included in other liabilities 181,050 145,857 (8,823 ) (2,625 ) Forward commitments to purchase mortgage-backed securities included in other assets 240,000 140,000 552 709 Forward commitments to sell residential mortgage loans included in other liabilities 65,350 24,750 (258 ) (221 ) Interest rate-lock commitments on residential mortgage loans included in other assets 48,191 16,244 913 400 $ 686,207 $ 454,363 $ 269 $ 565 ____________________________ (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 condensed consolidated balance sheets.
Weighted-Average Interest Rates Paid and Received for Interest Rate Swaps	The weighted-average interest rates paid and received for interest rate swaps at June 30, 2019 , were as follows: Weighted-Average Interest rate swaps: Interest Rate Paid Interest Rate Received Cash flow hedges 4.81 % 5.25 % Non-hedging interest rate swaps - financial institution counterparties 5.02 4.66 Non-hedging interest rate swaps - customer counterparties 4.72 5.06
Gains and Losses Recognized on Derivative Instruments Not Designated as Hedging Instruments	Gains and losses recognized on derivative instruments not designated as hedging instruments were as follows: (Dollars in thousands) Three Months Ended June 30, Six Months Ended June 30, Derivatives not designated as hedging instruments: 2019 2018 2019 2018 Amount of gain (loss) recognized in mortgage banking revenue (1) $ 1,587 $ (545 ) $ 2,898 $ (2,206 ) Amount of (loss) gain recognized in other non-interest income (391 ) 215 (615 ) 738 ____________________________ (1) Gains and losses on these instruments are largely offset by market fluctuations in MSRs. See Note 7 - Mortgage Banking for more information on components of mortgage banking revenue.

Stock and Incentive Compensat_2

Stock and Incentive Compensation Plans (Tables)	6 Months Ended
	Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
Share-based Compensation Cost Charged to Income	Share-based compensation cost charged to income for the three and six months ended June 30, 2019 and 2018 , is presented below: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2019 2018 2019 2018 Restricted stock $ 564 $ 223 $ 1,034 $ 417 Related tax benefits recognized in net income 118 47 217 88
Time-vested Award Activity	The following table summarizes the Company's time-vested award activity: Six Months Ended June 30, 2019 2018 Shares Weighted Average Grant-Date Fair Value Shares Weighted Average Grant-Date Fair Value Nonvested shares, January 1, 174,407 $ 35.01 61,293 $ 24.61 Granted 30,098 32.94 39,151 35.21 Vested (23,691 ) 30.41 (14,632 ) 24.48 Forfeited (2,419 ) 28.24 — — Nonvested shares, June 30, 178,395 $ 35.36 85,812 $ 29.47
Stock Option Activity	The table below summarizes the status of the Company's stock options and changes during the six months ended June 30, 2019 and 2018 . (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, 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 Six Months Ended June 30, 2019 Outstanding at January 1, 2019 274,000 $ 10.38 6.75 $ 6,493 Exercised (20,000 ) 8.25 — — Outstanding at June 30, 2019 254,000 10.55 6.31 5,703 Exercisable at June 30, 2019 254,000 $ 10.55 6.31 $ 5,703

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Schedule of Provision for Income Taxes	The provision for income taxes was as follows: Three Months Ended June 30, Six Months Ended June 30, (Dollars in thousands) 2019 2018 2019 2018 Federal income taxes: Current $ 3,179 $ (138 ) $ 6,345 $ 2,037 Deferred (620 ) 2,658 (956 ) 3,159 State income taxes: Current 243 268 512 344 Deferred (20 ) (28 ) (30 ) 4 Income tax expense $ 2,782 $ 2,760 $ 5,871 $ 5,544 Effective income tax rate 18.5 % 17.9 % 18.2 % 17.5 %

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2019
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, 2019 $ (2,601 ) $ 121 $ (2,480 ) Net change 8,303 (204 ) 8,099 Balance at June 30, 2019 $ 5,702 $ (83 ) $ 5,619 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 ) ____________________________ (1) During the first quarter of 2018, the Company adopted ASU 2018-02. The ASU was issued by the 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.

Capital and Regulatory Matters

Capital and Regulatory Matters (Tables)	6 Months Ended
	Jun. 30, 2019
Banking and Thrift [Abstract]
Actual Capital Amounts and Ratios	The actual capital amounts and ratios of the Company and Bank at June 30, 2019 , and December 31, 2018 , 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, 2019 Amount Ratio Amount Ratio Amount Ratio Common Equity Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. $ 546,659 11.93 % $ 320,847 7.00 % N/A N/A Origin Bank 534,753 11.70 319,987 7.00 $ 297,131 6.50 % Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 555,990 12.13 389,599 8.50 N/A N/A Origin Bank 534,753 11.70 388,556 8.50 365,699 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 594,507 12.97 481,267 10.50 N/A N/A Origin Bank 573,270 12.54 479,984 10.50 457,128 10.00 Leverage Ratio Origin Bancorp, Inc. 555,990 11.10 200,377 4.00 N/A N/A Origin Bank 534,753 10.70 199,913 4.00 249,892 5.00 December 31, 2018 Common Equity Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. $ 519,468 11.94 % $ 304,431 7.00 % N/A N/A Origin Bank 508,826 11.73 303,621 7.00 $ 281,934 6.50 % Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 528,786 12.16 369,668 8.50 N/A N/A Origin Bank 508,826 11.73 368,683 8.50 346,996 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 564,437 12.98 456,647 10.50 N/A N/A Origin Bank 544,477 12.55 455,430 10.50 433,743 10.00 Leverage Ratio Origin Bancorp, Inc. 528,786 11.21 188,711 4.00 N/A N/A Origin Bank 508,826 10.81 188,229 4.00 235,287 5.00

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Off-Balance Sheet Financial Instruments	These off-balance sheet financial instruments are summarized below: (Dollars in thousands) June 30, 2019 December 31, 2018 Commitments to extend credit $ 1,289,157 $ 1,178,735 Standby letters of credit 42,393 46,860

Significant Accounting Polici_3

Significant Accounting Policies (Details)	6 Months Ended
	Jun. 30, 2019centersegment
Accounting Policies [Abstract]
Number of banking centers | center	43
Number of segments | segment	1

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Basic earnings per common share
Net income	$ 12,283	$ 14,155	$ 13,178	$ 12,318	$ 12,702	$ 13,407	$ 26,438	$ 26,109
Less: Dividends to preferred stock	0				808		0	1,923
Less: Net income allocated to participating stockholders	0				40		0	921
Net income available to common stockholders	$ 12,283				$ 11,854		$ 26,438	$ 23,265
Weighted average common shares outstanding (in shares)	23,585,040				22,107,489		23,577,335	20,451,960
Basic earnings per common share ($ per share)	$ 0.52				$ 0.54		$ 1.12	$ 1.14
Diluted earnings per common share
Diluted earnings applicable to common stockholders (in shares)	$ 12,283				$ 11,876		$ 26,438	$ 23,318
Weighted average diluted common shares outstanding
Weighted average common shares outstanding (in shares)	23,585,040				22,107,489		23,577,335	20,451,960
Dilutive effect of common stock options (in shares)	201,606				274,514		204,023	274,514
Weighted average diluted common shares outstanding (in shares)	23,786,646				22,382,003		23,781,358	20,726,474
Diluted earnings per common share ($ per share)	$ 0.52				$ 0.53		$ 1.11	$ 1.13

Securities - Amortized Cost and

Securities - Amortized Cost and Estimated Fair Value of Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Available for sale
Amortized Cost	$ 541,873	$ 579,051
Available for sale, gross unrealized gains	7,919	2,276
Available for sale, gross unrealized losses	(812)	(5,683)
Available for sale, fair value	548,980	575,644
Held to maturity
Amortized Cost	28,897	19,169
Securities held to maturity, fair value	29,334	19,136
Securities carried at fair value through income, fair value	11,615	11,361
State and municipal securities
Available for sale
Amortized Cost	91,894	99,780
Available for sale, gross unrealized gains	2,574	1,266
Available for sale, gross unrealized losses	(5)	(163)
Available for sale, fair value	94,463	100,883
Held to maturity
Amortized Cost	28,897	19,169
Held to maturity, gross unrealized gains	437	0
Held to maturity, gross unrealized losses	0	(33)
Securities held to maturity, fair value	29,334	19,136
Securities carried at fair value through income, amortized cost	11,263	11,503
Securities carried at fair value through income, fair value	11,615	11,361
Corporate bonds
Available for sale
Amortized Cost	11,017	10,997
Available for sale, gross unrealized gains	643	102
Available for sale, gross unrealized losses	0	(65)
Available for sale, fair value	11,660	11,034
U.S. Government and agency securities
Available for sale
Amortized Cost	61,578	61,122
Available for sale, gross unrealized gains	267	82
Available for sale, gross unrealized losses	(8)	(54)
Available for sale, fair value	61,837	61,150
Commercial mortgage-backed securities
Available for sale
Amortized Cost	12,082	16,672
Available for sale, gross unrealized gains	339	94
Available for sale, gross unrealized losses	0	0
Available for sale, fair value	12,421	16,766
Residential mortgage-backed securities
Available for sale
Amortized Cost	175,853	188,058
Available for sale, gross unrealized gains	2,572	417
Available for sale, gross unrealized losses	(332)	(2,160)
Available for sale, fair value	178,093	186,315
Commercial collateralized mortgage obligations
Available for sale
Amortized Cost	4,360
Available for sale, gross unrealized gains	53
Available for sale, gross unrealized losses	0
Available for sale, fair value	4,413
Residential collateralized mortgage obligations
Available for sale
Amortized Cost	185,089	202,422
Available for sale, gross unrealized gains	1,471	315
Available for sale, gross unrealized losses	(467)	(3,241)
Available for sale, fair value	$ 186,093	$ 199,496

Securities - Unrealized Losses

Securities - Unrealized Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value
Less than 12 Months	$ 10,485	$ 110,851
12 Months or More	102,636	206,535
Total	113,121	317,386
Unrealized Loss
Less than 12 Months	(40)	(313)
12 Months or More	(772)	(5,370)
Total	(812)	(5,683)
State and municipal securities
Fair Value
Less than 12 Months	1,489	13,101
12 Months or More	1,187	8,463
Total	2,676	21,564
Unrealized Loss
Less than 12 Months	(1)	(50)
12 Months or More	(4)	(113)
Total	(5)	(163)
Fair Value
Less than 12 Months	0	13,921
12 Months or More	0	0
Total	0	13,921
Unrealized Loss
Less than 12 Months	0	(33)
12 Months or More	0	0
Total	0	(33)
Corporate bonds
Fair Value
Less than 12 Months		7,932
12 Months or More		0
Total		7,932
Unrealized Loss
Less than 12 Months		(65)
12 Months or More		0
Total		(65)
U.S. Government and agency securities
Fair Value
Less than 12 Months	731	56,271
12 Months or More	0	0
Total	731	56,271
Unrealized Loss
Less than 12 Months	(8)	(54)
12 Months or More	0	0
Total	(8)	(54)
Residential mortgage-backed securities
Fair Value
Less than 12 Months	907	18,836
12 Months or More	54,880	77,471
Total	55,787	96,307
Unrealized Loss
Less than 12 Months	(2)	(65)
12 Months or More	(330)	(2,095)
Total	(332)	(2,160)
Residential collateralized mortgage obligations
Fair Value
Less than 12 Months	7,358	14,711
12 Months or More	46,569	120,601
Total	53,927	135,312
Unrealized Loss
Less than 12 Months	(29)	(79)
12 Months or More	(438)	(3,162)
Total	$ (467)	$ (3,241)

Securities - Narrative (Details

Securities - Narrative (Details)	Jun. 30, 2019security
Investments, Debt and Equity Securities [Abstract]
Number of securities in an unrealized loss positions (in security)	44

Securities - Contractual Maturi

Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Amortized Cost
Due in one year or less	$ 59,863
Due after one year through five years	24,594
Due after five years through ten years	75,818
Due after ten years	4,214
Amortized Cost	541,873	$ 579,051
Fair Value
Due in one year or less	59,908
Due after one year through five years	25,037
Due after five years through ten years	78,645
Due after ten years	4,370
Fair Value	548,980	575,644
Amortized Cost
Due in one year or less	0
Due after one year through five years	13,687
Due after five years through ten years	10,000
Due after ten years	5,210
Amortized Cost	28,897	19,169
Fair Value
Due in one year or less	0
Due after one year through five years	13,784
Due after five years through ten years	10,328
Due after ten years	5,222
Fair Value	29,334	19,136
Commercial mortgage-backed securities
Amortized Cost
Without single maturity date	12,082
Amortized Cost	12,082	16,672
Fair Value
Without single maturity date	12,421
Fair Value	12,421	16,766
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Residential mortgage-backed securities
Amortized Cost
Without single maturity date	175,853
Amortized Cost	175,853	188,058
Fair Value
Without single maturity date	178,093
Fair Value	178,093	186,315
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Commercial collateralized mortgage obligations
Amortized Cost
Without single maturity date	4,360
Amortized Cost	4,360
Fair Value
Without single maturity date	4,413
Fair Value	4,413
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Residential collateralized mortgage obligations
Amortized Cost
Without single maturity date	185,089
Amortized Cost	185,089	202,422
Fair Value
Without single maturity date	186,093
Fair Value	186,093	$ 199,496
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	$ 0

Securities - Securities Pledged

Securities - Securities Pledged as Collateral (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Carrying value of securities pledged to secure public deposits
Schedule of Held-to-maturity Securities [Line Items]
Securities pledged as collateral	$ 312,971	$ 364,055
Carrying value of securities pledged to repurchase agreements
Schedule of Held-to-maturity Securities [Line Items]
Securities pledged as collateral	$ 40,500	$ 48,847

Loans - Schedule of Loans (Deta

Loans - Schedule of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
Loans held for sale	$ 58,408		$ 52,210
Loans held for investment	3,984,597		3,789,105
Less: Allowance for loan losses	36,683	$ 35,578	34,203	$ 34,151	$ 34,132	$ 37,083
Net loans held for investment	3,947,914		3,754,902
Net deferred loan fees	3,500		3,200
Real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	2,396,457		2,287,776
Real estate | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	1,219,470		1,228,402
Less: Allowance for loan losses	9,420	9,258	8,999	9,768	10,144	8,998
Real estate | Construction/land/land development
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	524,999		429,660
Less: Allowance for loan losses	3,941	3,679	3,331	3,153	2,707	2,950
Real estate | Residential real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	651,988		629,714
Less: Allowance for loan losses	5,632	5,577	5,705	5,468	5,471	5,807
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	1,341,652		1,272,566
Less: Allowance for loan losses	17,177	16,475	15,616	15,299	15,337	18,831
Mortgage warehouse lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	224,939		207,871
Less: Allowance for loan losses	263	365	316	203	158	214
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	21,549		20,892
Less: Allowance for loan losses	$ 250	$ 224	$ 236	$ 260	$ 315	$ 283

Loans - Narrative (Details)

Loans - Narrative (Details)	6 Months Ended
	Jun. 30, 2019USD ($)loan	Jun. 30, 2018USD ($)loan	Dec. 31, 2018USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment at fair value	$ 18,273,000		$ 18,571,000
Nonaccrual mortgage loans held for sale recorded at fair value	$ 2,000,000		741,000
Number of loans that defaulted | loan	0	2
Nonperforming Financial Instruments
Loans and Leases Receivable Disclosure [Line Items]
Gross interest income that would have been recorded	$ 797,000	$ 651,000
Interest income	0	0
Outstanding principal balance		$ 68,000
Real estate | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment at fair value	$ 18,300,000		$ 18,600,000

Loans - Loans by Credit Quality

Loans - Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	$ 3,984,597	$ 3,789,105
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	3,867,042	3,670,261
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	40,985	39,364
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	76,570	79,480
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	2,396,457	2,287,776
Real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	2,355,195	2,250,960
Real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	14,079	4,400
Real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	27,183	32,416
Real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Real estate | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Real estate | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	1,219,470	1,228,402
Real estate | Commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	1,188,742	1,206,194
Real estate | Commercial real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	12,803	3,101
Real estate | Commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	17,925	19,107
Real estate | Commercial real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Real estate | Commercial real estate | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Real estate | Construction/land/land development
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	524,999	429,660
Real estate | Construction/land/land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	523,414	426,770
Real estate | Construction/land/land development | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	154	157
Real estate | Construction/land/land development | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	1,431	2,733
Real estate | Construction/land/land development | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Real estate | Construction/land/land development | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Real estate | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	651,988	629,714
Real estate | Residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	643,039	617,996
Real estate | Residential real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	1,122	1,142
Real estate | Residential real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	7,827	10,576
Real estate | Residential real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Real estate | Residential real estate | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	1,341,652	1,272,566
Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	1,265,515	1,190,718
Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	26,906	34,964
Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	49,231	46,884
Commercial and industrial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Commercial and industrial | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Mortgage warehouse lines of credit
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	224,939	207,871
Mortgage warehouse lines of credit | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	224,939	207,871
Mortgage warehouse lines of credit | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Mortgage warehouse lines of credit | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Mortgage warehouse lines of credit | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Mortgage warehouse lines of credit | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	21,549	20,892
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	21,393	20,712
Consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	156	180
Consumer | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	0	0
Consumer | Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Loans held for investment	$ 0	$ 0

Loans - Loan Portfolio Aging An

Loans - Loan Portfolio Aging Analysis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 31,884	$ 34,085
Current Loans	3,952,713	3,755,020
Total Loans Receivable	3,984,597	3,789,105
Accruing Loans 90 or More Days Past Due	0	0
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	5,127	5,911
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,795	10,207
Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	24,962	17,967
Real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	16,316	18,996
Current Loans	2,380,141	2,268,780
Total Loans Receivable	2,396,457	2,287,776
Accruing Loans 90 or More Days Past Due	0	0
Real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	4,253	5,252
Real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,087	1,936
Real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	10,976	11,808
Real estate | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	10,679	9,091
Current Loans	1,208,791	1,219,311
Total Loans Receivable	1,219,470	1,228,402
Accruing Loans 90 or More Days Past Due	0	0
Real estate | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	2,822	458
Real estate | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	1,409
Real estate | Commercial real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	7,857	7,224
Real estate | Construction/land/land development
Financing Receivable, Past Due [Line Items]
Total Past Due	1,073	3,092
Current Loans	523,926	426,568
Total Loans Receivable	524,999	429,660
Accruing Loans 90 or More Days Past Due	0	0
Real estate | Construction/land/land development | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	768	2,657
Real estate | Construction/land/land development | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	249	0
Real estate | Construction/land/land development | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	56	435
Real estate | Residential real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	4,564	6,813
Current Loans	647,424	622,901
Total Loans Receivable	651,988	629,714
Accruing Loans 90 or More Days Past Due	0	0
Real estate | Residential real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	663	2,137
Real estate | Residential real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	838	527
Real estate | Residential real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	3,063	4,149
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Past Due	15,390	14,696
Current Loans	1,326,262	1,257,870
Total Loans Receivable	1,341,652	1,272,566
Accruing Loans 90 or More Days Past Due	0	0
Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	704	276
Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	708	8,263
Commercial and industrial | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	13,978	6,157
Mortgage warehouse lines of credit
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current Loans	224,939	207,871
Total Loans Receivable	224,939	207,871
Accruing Loans 90 or More Days Past Due	0	0
Mortgage warehouse lines of credit | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Mortgage warehouse lines of credit | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Mortgage warehouse lines of credit | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	178	393
Current Loans	21,371	20,499
Total Loans Receivable	21,549	20,892
Accruing Loans 90 or More Days Past Due	0	0
Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	170	383
Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	8
Consumer | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 8	$ 2

Loans - Allowance for Loan Loss

Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 35,578	$ 34,132	$ 34,203	$ 37,083
Charge-offs	840	794	1,448	2,532
Recoveries	163	673	1,323	1,018
Provision (Benefit)	1,782	140	2,605	(1,418)
Ending Balance	36,683	34,151	36,683	34,151
Provision (benefit) for credit losses	1,985	311	2,990	(1,213)
Provision (release of provision) for off-balance sheet commitments	203	171	385	205
Real estate | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	9,258	10,144	8,999	8,998
Charge-offs	106	0	195	9
Recoveries	8	89	59	216
Provision (Benefit)	260	(465)	557	563
Ending Balance	9,420	9,768	9,420	9,768
Real estate | Construction/land/land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	3,679	2,707	3,331	2,950
Charge-offs	38	0	38	0
Recoveries	0	0	1	1
Provision (Benefit)	300	446	647	202
Ending Balance	3,941	3,153	3,941	3,153
Real estate | Residential real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	5,577	5,471	5,705	5,807
Charge-offs	0	0	0	9
Recoveries	18	30	45	49
Provision (Benefit)	37	(33)	(118)	(379)
Ending Balance	5,632	5,468	5,632	5,468
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	16,475	15,337	15,616	18,831
Charge-offs	622	766	1,133	2,469
Recoveries	121	546	1,195	720
Provision (Benefit)	1,203	182	1,499	(1,783)
Ending Balance	17,177	15,299	17,177	15,299
Mortgage warehouse lines of credit
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	365	158	316	214
Charge-offs	29	0	29	0
Recoveries	0	0	0	0
Provision (Benefit)	(73)	45	(24)	(11)
Ending Balance	263	203	263	203
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	224	315	236	283
Charge-offs	45	28	53	45
Recoveries	16	8	23	32
Provision (Benefit)	55	(35)	44	(10)
Ending Balance	$ 250	$ 260	$ 250	$ 260

Loans - Impaired Loans Evaluate

Loans - Impaired Loans Evaluated Individually and Collectively (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Period End Allowance Allocated to Loans Individually Evaluated for Impairment	$ 196	$ 366
Period End Allowance Allocated to Loans Collectively Evaluated for Impairment	36,487	33,837
Period End Loan Balance Individually Evaluated for Impairment	31,917	33,278
Period End Loan Balance Collectively Evaluated for Impairment	3,934,407	3,737,256
Loans held for investment at fair value	18,273	18,571
Real estate | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Period End Allowance Allocated to Loans Individually Evaluated for Impairment	2	5
Period End Allowance Allocated to Loans Collectively Evaluated for Impairment	9,418	8,994
Period End Loan Balance Individually Evaluated for Impairment	9,895	8,773
Period End Loan Balance Collectively Evaluated for Impairment	1,191,302	1,201,058
Loans held for investment at fair value	18,300	18,600
Real estate | Construction/land/land development
Financing Receivable, Allowance for Credit Loss [Line Items]
Period End Allowance Allocated to Loans Individually Evaluated for Impairment	2	19
Period End Allowance Allocated to Loans Collectively Evaluated for Impairment	3,939	3,312
Period End Loan Balance Individually Evaluated for Impairment	1,156	1,017
Period End Loan Balance Collectively Evaluated for Impairment	523,843	428,643
Real estate | Residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Period End Allowance Allocated to Loans Individually Evaluated for Impairment	8	68
Period End Allowance Allocated to Loans Collectively Evaluated for Impairment	5,624	5,637
Period End Loan Balance Individually Evaluated for Impairment	4,704	6,876
Period End Loan Balance Collectively Evaluated for Impairment	647,284	622,838
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Period End Allowance Allocated to Loans Individually Evaluated for Impairment	181	255
Period End Allowance Allocated to Loans Collectively Evaluated for Impairment	16,996	15,361
Period End Loan Balance Individually Evaluated for Impairment	16,031	16,428
Period End Loan Balance Collectively Evaluated for Impairment	1,325,621	1,256,138
Mortgage warehouse lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Period End Allowance Allocated to Loans Individually Evaluated for Impairment	0	0
Period End Allowance Allocated to Loans Collectively Evaluated for Impairment	263	316
Period End Loan Balance Individually Evaluated for Impairment	0	0
Period End Loan Balance Collectively Evaluated for Impairment	224,939	207,871
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Period End Allowance Allocated to Loans Individually Evaluated for Impairment	3	19
Period End Allowance Allocated to Loans Collectively Evaluated for Impairment	247	217
Period End Loan Balance Individually Evaluated for Impairment	131	184
Period End Loan Balance Collectively Evaluated for Impairment	$ 21,418	$ 20,708

Loans - Impaired Loans (Details

Loans - Impaired Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	$ 38,104	$ 39,123
Recorded Investment with no Allowance	30,528	31,461
Recorded Investment with an Allowance	1,389	1,817
Total Recorded Investment	31,917	33,278
Allocation of Allowance for Loan Losses	196	366
Real estate
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	19,333	20,038
Recorded Investment with no Allowance	14,877	15,655
Recorded Investment with an Allowance	878	1,011
Total Recorded Investment	15,755	16,666
Allocation of Allowance for Loan Losses	12	92
Real estate | Commercial real estate
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	12,224	10,894
Recorded Investment with no Allowance	9,776	8,725
Recorded Investment with an Allowance	119	48
Total Recorded Investment	9,895	8,773
Allocation of Allowance for Loan Losses	2	5
Real estate | Construction/land/land development
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	1,525	1,329
Recorded Investment with no Allowance	827	838
Recorded Investment with an Allowance	329	179
Total Recorded Investment	1,156	1,017
Allocation of Allowance for Loan Losses	2	19
Real estate | Residential real estate
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	5,584	7,815
Recorded Investment with no Allowance	4,274	6,092
Recorded Investment with an Allowance	430	784
Total Recorded Investment	4,704	6,876
Allocation of Allowance for Loan Losses	8	68
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	18,631	18,883
Recorded Investment with no Allowance	15,651	15,806
Recorded Investment with an Allowance	380	622
Total Recorded Investment	16,031	16,428
Allocation of Allowance for Loan Losses	181	255
Consumer
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	140	202
Recorded Investment with no Allowance	0	0
Recorded Investment with an Allowance	131	184
Total Recorded Investment	131	184
Allocation of Allowance for Loan Losses	$ 3	$ 19

Loans - Average Recorded Invest

Loans - Average Recorded Investment and Interest Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 31,905	$ 32,476	$ 32,344	$ 35,269
Interest Income Recognized	17	85	38	198
Real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	15,855	19,004	16,089	19,211
Interest Income Recognized	13	28	27	90
Real estate | Commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	9,880	10,093	9,532	9,942
Interest Income Recognized	6	15	11	43
Real estate | Construction/land/land development
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,145	1,368	1,090	1,650
Interest Income Recognized	2	2	4	11
Real estate | Residential real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	4,830	7,543	5,467	7,619
Interest Income Recognized	5	11	12	36
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	15,885	13,198	16,083	15,792
Interest Income Recognized	3	56	9	105
Consumer
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	165	274	172	266
Interest Income Recognized	$ 1	$ 1	$ 2	$ 3

Loans - Non Performing (Nonaccr

Loans - Non Performing (Nonaccrual) Loans Held For Investment (Details) - Nonperforming Financial Instruments - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Credit Quality Indicator [Line Items]
Total nonaccrual loans	$ 30,478	$ 31,856
Real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total nonaccrual loans	15,512	15,884
Real estate | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total nonaccrual loans	9,423	8,281
Real estate | Construction/land/land development
Financing Receivable, Credit Quality Indicator [Line Items]
Total nonaccrual loans	1,111	935
Real estate | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total nonaccrual loans	4,978	6,668
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total nonaccrual loans	14,810	15,792
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total nonaccrual loans	$ 156	$ 180

Loans - Troubled Debt Restructu

Loans - Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans classified as troubled debt restructurings	$ 7,872	$ 7,847
Nonaccrual TDRs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans classified as troubled debt restructurings	5,857	5,793
Performing TDRs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans classified as troubled debt restructurings	$ 2,015	$ 2,054

Loans - Pre-Modification Balanc

Loans - Pre-Modification Balances of TDR (Details) - Nonperforming Financial Instruments $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)loan	Jun. 30, 2018USD ($)loan	Jun. 30, 2019USD ($)loan	Jun. 30, 2018USD ($)loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan	3	5	5	6
Pre-modification Recorded Balance	$ 800	$ 125	$ 1,180	$ 220
Total Modifications	$ 790	$ 121	$ 1,161	$ 210
Real estate | Construction/land/land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan			1
Pre-modification Recorded Balance			$ 361
Total Modifications			$ 354
Real estate | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan		4		5
Pre-modification Recorded Balance		$ 92		$ 187
Total Modifications		$ 89		$ 178
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan	2		3
Pre-modification Recorded Balance	$ 789		$ 808
Total Modifications	$ 779		$ 796
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan	1	1	1	1
Pre-modification Recorded Balance	$ 11	$ 33	$ 11	$ 33
Total Modifications	11	32	11	32
Term Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	790	51	807	51
Term Concessions | Real estate | Construction/land/land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications			0
Term Concessions | Real estate | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		51		51
Term Concessions | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	779		796
Term Concessions | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	11	0	11	0
Interest Rate Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		21		21
Interest Rate Concessions | Real estate | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		21		21
Interest Rate Concessions | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		0		0
Combination of Term and Rate Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	0	49	354	138
Combination of Term and Rate Concessions | Real estate | Construction/land/land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications			354
Combination of Term and Rate Concessions | Real estate | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		17		106
Combination of Term and Rate Concessions | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	0		0
Combination of Term and Rate Concessions | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	$ 0	$ 32	$ 0	$ 32

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Fair Value of Assets and Liabilities Recorded on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 548,980		$ 575,644
Securities carried at fair value through income	11,615		11,361
Loans held for sale	34,401		21,562
Loans at fair value	18,273		18,571
Mortgage servicing rights	21,529	$ 23,407	25,114	$ 25,738	$ 25,999	$ 24,182
State and municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	94,463		100,883
Securities carried at fair value through income	11,615		11,361
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	11,660		11,034
U.S. Government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	61,837		61,150
Commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	12,421		16,766
Residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	178,093		186,315
Commercial collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	4,413
Residential collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	186,093		199,496
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	548,980		575,644
Securities carried at fair value through income	11,615		11,361
Loans held for sale	34,401		21,562
Loans at fair value	18,273		18,571
Mortgage servicing rights	21,529		25,114
Other assets - derivatives	9,350		3,563
Total recurring fair value measurements - assets	644,148		655,815
Other liabilities - derivatives	(9,187)		(2,846)
Total recurring fair value measurements - liabilities	(9,187)		(2,846)
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	56,254		55,515
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	56,254		55,515
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]
Securities available for sale	454,174		480,768
Securities carried at fair value through income	0		0
Loans held for sale	34,401		21,562
Loans at fair value	0		0
Mortgage servicing rights	0		0
Other assets - derivatives	9,350		3,563
Total recurring fair value measurements - assets	497,925		505,893
Other liabilities - derivatives	(9,187)		(2,846)
Total recurring fair value measurements - liabilities	(9,187)		(2,846)
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	38,552		39,361
Securities carried at fair value through income	11,615		11,361
Loans held for sale	0		0
Loans at fair value	18,273		18,571
Mortgage servicing rights	21,529		25,114
Other assets - derivatives	0		0
Total recurring fair value measurements - assets	89,969		94,407
Other liabilities - derivatives	0		0
Total recurring fair value measurements - liabilities	0		0
Fair Value, Measurements, Recurring | State and municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	94,463		100,883
Fair Value, Measurements, Recurring | State and municipal securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Fair Value, Measurements, Recurring | State and municipal securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	55,911		61,522
Fair Value, Measurements, Recurring | State and municipal securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	38,552		39,361
Fair Value, Measurements, Recurring | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	11,660		11,034
Fair Value, Measurements, Recurring | Corporate bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Fair Value, Measurements, Recurring | Corporate bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	11,660		11,034
Fair Value, Measurements, Recurring | Corporate bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Fair Value, Measurements, Recurring | U.S. Government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	61,837		61,150
Fair Value, Measurements, Recurring | U.S. Government and agency securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	56,254		55,515
Fair Value, Measurements, Recurring | U.S. Government and agency securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	5,583		5,635
Fair Value, Measurements, Recurring | U.S. Government and agency securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	12,421		16,766
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	12,421		16,766
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Fair Value, Measurements, Recurring | Residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	178,093		186,315
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	178,093		186,315
Fair Value, Measurements, Recurring | Residential mortgage-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Fair Value, Measurements, Recurring | Commercial collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	4,413
Fair Value, Measurements, Recurring | Commercial collateralized mortgage obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0
Fair Value, Measurements, Recurring | Commercial collateralized mortgage obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	4,413
Fair Value, Measurements, Recurring | Commercial collateralized mortgage obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0
Fair Value, Measurements, Recurring | Residential collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	186,093		199,496
Fair Value, Measurements, Recurring | Residential collateralized mortgage obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Fair Value, Measurements, Recurring | Residential collateralized mortgage obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	186,093		199,496
Fair Value, Measurements, Recurring | Residential collateralized mortgage obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 0		$ 0

Fair Value of Financial Instr_4

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, 2019	Jun. 30, 2018
Loans at Fair Value
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	$ 18,571	$ 26,611
Gain (loss) recognized in accumulated other comprehensive income	0	0
Purchases, issuances, sales and settlements:
Originations	0	0
Purchases		0
Settlements	(511)	(5,352)
Balance at end of period	18,273	20,872
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	213	(387)
MSRs
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	25,114	24,182
Gain (loss) recognized in accumulated other comprehensive income	0	0
Purchases, issuances, sales and settlements:
Originations	706	993
Purchases		0
Settlements	0	0
Balance at end of period	21,529	25,738
MSRs | Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	(4,291)	563
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	39,361	42,015
Gain (loss) recognized in accumulated other comprehensive income	1,010	(858)
Purchases, issuances, sales and settlements:
Originations	0	0
Purchases		259
Settlements	(1,819)	(1,655)
Balance at end of period	38,552	39,761
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 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	11,361	12,033
Gain (loss) recognized in accumulated other comprehensive income	0	0
Purchases, issuances, sales and settlements:
Originations	0	0
Purchases		0
Settlements	(240)	(230)
Balance at end of period	11,615	11,413
Securities 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 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	$ 494	$ (390)

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Assumptions Used to Value Mortgage Servicing Rights (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Prepayment speed	13.01%	9.90%
Discount rate	10.18%	10.42%

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Difference Between Fair Value and Unpaid Principal Balance (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	$ 64,289,000	$ 51,494,000
Aggregate Unpaid Principal Balance	62,613,000	51,067,000
Difference	1,676,000	427,000
Nonaccrual mortgage loans held for sale recorded at fair value	2,000,000	741,000
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	34,401,000	21,562,000
Aggregate Unpaid Principal Balance	33,470,000	21,173,000
Difference	931,000	389,000
Commercial real estate loans held for investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	18,273,000	18,571,000
Aggregate Unpaid Principal Balance	17,880,000	18,391,000
Difference	393,000	180,000
Securities carried at fair value through income
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	11,615,000	11,361,000
Aggregate Unpaid Principal Balance	11,263,000	11,503,000
Difference	352,000	(142,000)
US Government Agencies Debt Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans, 90 days or more past due	$ 1,500,000	$ 582,000

Fair Value of Financial Instr_7

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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Mortgage banking revenue
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Fair value option impact on noninterest income	$ 504		$ 541
Other income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Fair value option impact on noninterest income	486	$ (172)	707	$ (777)
Noninterest income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Fair value option impact on noninterest income	990	99	1,248	(829)
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	141	(92)	213	(387)
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	$ 345	$ (80)	$ 494	$ (390)

Fair Value of Financial Instr_8

Fair Value of Financial Instruments - Narrative (Details) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities without readily determinable fair value	$ 49,000,000
Impairment recorded on investments in equity securities that do not have readily determinable fair values	0
Gain recognized on equity securities without readily determinable fair values	367,000	$ 2,000,000
Liability to repurchase past due GNMA loans	24,000,000		$ 30,600,000
Fair value of impaired loans	31,917,000		33,278,000
Real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of impaired loans	15,755,000		16,666,000
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of impaired loans	1,200,000		1,400,000
Foreclosed assets	3,600,000		$ 3,700,000
Residential real estate | Fair Value, Measurements, Nonrecurring | 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	$ 2,600,000
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%		2.90%
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 Instr_9

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, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	$ 29,334	$ 19,136
Carrying Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	199,560	116,678
Carrying Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	28,897	19,169
Non-marketable equity securities held in other financial institutions	49,008	42,149
Accrued interest and loan fees receivable	16,789	16,454
Deposits	3,855,012	3,783,138
FHLB advances and other borrowings	601,346	445,224
Junior subordinated debentures	9,657	9,644
Accrued interest payable	3,245	2,679
Carrying Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment, net	3,929,641	3,736,331
Estimated Fair Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	199,560	116,678
Estimated Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	29,334	19,136
Non-marketable equity securities held in other financial institutions	49,008	42,149
Accrued interest and loan fees receivable	16,789	16,454
Deposits	3,711,638	3,537,283
FHLB advances and other borrowings	616,875	444,286
Junior subordinated debentures	10,719	10,723
Accrued interest payable	3,245	2,679
Estimated Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment, net	$ 3,764,158	$ 3,605,142

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	Jan. 01, 2019	Jun. 30, 2018	Jun. 30, 2018	Jan. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment credit, net of tax	$ 321			$ 0
Lease expense		$ 1,000	$ 2,000
Deferred loss	962
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment credit, net of tax	321			$ (282)
ASU No. 2016-02 — Leases | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment credit, net of tax	$ 321

Leases - Balance Sheet Details

Leases - Balance Sheet Details and Components of Lease Expense (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)
Leases [Abstract]
Operating lease right of use assets (included in Accrued interest receivable and other assets)	$ 25,334	$ 25,334
Operating lease liabilities (included in Accrued expenses and other liabilities)	27,302	27,302
Finance lease liabilities (included in Accrued expenses and other liabilities)	$ 380	$ 380
Weighted average remaining lease term (years) - operating leases	9 years 11 months 8 days	9 years 11 months 8 days
Weighted average discount rate - operating leases	3.48%	3.48%
Lease expense:
Operating lease expense	$ 1,186	$ 2,332
Other lease expense	62	124
Total lease expense	1,248	2,456
Right of use assets obtained in exchange for new operating lease liabilities	$ 0	$ 940

Leases - Maturities of Operatin

Leases - Maturities of Operating Lease Liabilities (Details) $ in Thousands	Jun. 30, 2019USD ($)
Leases [Abstract]
Year 1	$ 4,750
Year 2	4,290
Year 3	3,806
Year 4	3,609
Year 5	3,031
Year 6 and thereafter	13,292
Total lease payments	32,778
Less: Imputed interest	5,476
Total lease obligations	$ 27,302

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Cash paid for operating leases	$ 1,200	$ 2,373

Mortgage Banking - Mortgage Ban

Mortgage Banking - Mortgage Banking Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Mortgage Banking [Abstract]
Origination	$ 235	$ 242	$ 365	$ 452
Gain on sale of loans held for sale	1,275	1,336	2,372	3,360
Servicing	1,646	1,774	3,345	3,611
Total gross mortgage revenue	3,156	3,352	6,082	7,423
Mortgage derivatives gain (loss)	807	311	1,017	(228)
MSR change due to payoffs and paydowns	(918)	(1,047)	(1,636)	(1,831)
MSR and hedge fair value adjustment	207	(299)	395	(678)
Gain on MSR sale	0	0	0	25
Mortgage banking revenue	$ 3,252	$ 2,317	$ 5,858	$ 4,711

Mortgage Banking - Activity in

Mortgage Banking - Activity in Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	$ 23,407	$ 25,999	$ 25,114	$ 24,182
Origination of servicing rights	423	450	706	993
Change in fair value, including amortization, net	(2,301)	(711)	(4,291)	563
Balance at end of period	$ 21,529	$ 25,738	$ 21,529	$ 25,738

Mortgage Banking - Narrative (D

Mortgage Banking - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Mortgage Banking [Abstract]
Annual servicing fee income rate			0.28%
Mortgage loan servicing putback expenses	$ 0	$ 0	$ 0	$ 0
Reserve for mortgage loan servicing putback expenses	196,000		196,000		$ 196,000
Liability to repurchase past due GNMA loans	$ 24,000,000		$ 24,000,000		$ 30,600,000

Derivative Financial Instrume_3

Derivative Financial Instruments - Narrative (Details) $ in Millions	Jun. 30, 2019USD ($)instrument	Dec. 31, 2018USD ($)
Derivative [Line Items]
Cash collateral on deposit | $	$ 9.3	$ 1.9
Interest Rate Swap | Designated as Hedging Instrument
Derivative [Line Items]
Number of instruments held | instrument	2

Derivative Financial Instrume_4

Derivative Financial Instruments - Fair Value of Derivative Instruments on the Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Notional Amounts	$ 686,207	$ 454,363
Fair Values	269	565
Not Designated as Hedging Instrument | Interest Rate Swap | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amounts	151,616	127,512
Fair Values	7,885	2,302
Not Designated as Hedging Instrument | Interest Rate Swap | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amounts	181,050	145,857
Fair Values	(8,823)	(2,625)
Not Designated as Hedging Instrument | Forward Commitment to Purchase | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amounts	240,000	140,000
Fair Values	552	709
Not Designated as Hedging Instrument | Forward Commitment to Sell | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amounts	65,350	24,750
Fair Values	(258)	(221)
Not Designated as Hedging Instrument | Interest Rate Lock Commitments | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amounts	48,191	16,244
Fair Values	913	400
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amounts	10,500	10,500
Fair Values	$ (106)	$ 152

Derivative Financial Instrume_5

Derivative Financial Instruments - Weighted-Average Interest Rates Paid and Received (Details) - Interest Rate Swap	Jun. 30, 2019
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	5.25%
Not Designated as Hedging Instrument | Interest Rate Paid | Financial Institution
Derivative [Line Items]
Weighted-average rates	5.02%
Not Designated as Hedging Instrument | Interest Rate Paid | Customer
Derivative [Line Items]
Weighted-average rates	4.72%
Not Designated as Hedging Instrument | Interest Rate Received | Financial Institution
Derivative [Line Items]
Weighted-average rates	4.66%
Not Designated as Hedging Instrument | Interest Rate Received | Customer
Derivative [Line Items]
Weighted-average rates	5.06%

Derivative Financial Instrume_6

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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives not designated as hedging instruments	$ 1,587	$ (545)	$ 2,898	$ (2,206)
Noninterest income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives not designated as hedging instruments	$ (391)	$ 215	$ (615)	$ 738

Stock and Incentive Compensat_3

Stock and Incentive Compensation Plans - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Outstanding stock options term (does not exceed)	20 years
Restricted Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Shares surrendered to cover taxes owed upon the vesting of restricted stock awards (in shares)	0	2,187
Unrecognized compensation cost	$ 5.2
Unrecognized compensation cost weighted average period for recognition	2 years 9 months 29 days
2012 Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Maximum number of common stock available for issuance (in shares)	956,859
Minimum
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Vesting period from the date of grant or merger	0 years
Minimum | Restricted Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Service period	1 year
Maximum
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Vesting period from the date of grant or merger	10 years
Maximum | Restricted Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Service period	5 years

Stock and Incentive Compensat_4

Stock and Incentive Compensation Plans - Share-based Compensation Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Share-based Payment Arrangement [Abstract]
Related tax benefits recognized in net income	$ 118	$ 47	$ 217	$ 88
Restricted stock	$ 564	$ 223	$ 1,034	$ 417

Stock and Incentive Compensat_5

Stock and Incentive Compensation Plans - Time-vested Award Activity (Details) - Restricted Stock - $ / shares	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Shares
Nonvested shares, beginning balance (in shares)	174,407	61,293
Granted (in shares)	30,098	39,151
Vested (in shares)	(23,691)	(14,632)
Forfeited (in shares)	(2,419)	0
Nonvested shares, ending balance (in shares)	178,395	85,812
Weighted Average Grant-Date Fair Value
Nonvested shares, ending balance ($ per share)	$ 35.01	$ 24.61
Granted ($ per share)	32.94	35.21
Vested ($ per share)	30.41	24.48
Forfeited ($ per share)	28.24	0
Nonvested shares, beginning balance ($ per share)	$ 35.36	$ 29.47

Stock and Incentive Compensat_6

Stock and Incentive Compensation Plans - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Number of Shares
Outstanding, beginning of period (in shares)	274,000	319,500	319,500
Exercised (in shares)	(20,000)
Outstanding, end of period (in shares)	254,000	319,500	274,000	319,500
Exercisable (in shares)	254,000
Weighted Average Exercise Price
Outstanding, beginning of period ($ per share)	$ 10.38	$ 10.65	$ 10.65
Exercised ($ per share)	8.25
Outstanding, end of period ($ per share)	10.55	$ 10.65	$ 10.38	$ 10.65
Exercisable, end ($ per share)	$ 10.55
Weighted average remaining contractual term (in years)	6 years 3 months 22 days	6 years 6 months 25 days	6 years 9 months	7 years 26 days
Weighted average remaining contractual term, exercisable (in years)	6 years 3 months 22 days
Aggregate intrinsic value	$ 5,703	$ 9,677	$ 6,493	$ 4,840
Aggregate intrinsic value, exercisable	$ 5,703

Income Taxes - Provision for In

Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Federal income taxes:
Current	$ 3,179	$ (138)	$ 6,345	$ 2,037
Deferred	(620)	2,658	(956)	3,159
State income taxes:
Current	243	268	512	344
Deferred	(20)	(28)	(30)	4
Income tax expense	$ 2,782	$ 2,760	$ 5,871	$ 5,544
Effective income tax rate	18.50%	17.90%	18.20%	17.50%

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jan. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification from accumulated other comprehensive income	$ (5,619)	$ 2,480
Reclassification to retained earnings	$ 216,801	$ 191,585
Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification from accumulated other comprehensive income			$ 282
Reclassification to retained earnings			$ 282

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended						6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	$ 568,122	$ 549,779	$ 531,919	$ 519,356	$ 427,833	$ 420,351	$ 549,779	$ 420,351
Net change	4,095	4,004	3,717	(2,145)	(1,293)	(4,348)	8,099	(5,641)
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	584,293	568,122	549,779	531,919	519,356	427,833	584,293	519,356
Unrealized Gains on AFS Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance		(2,601)		(4,278)		1,280	(2,601)	1,280
Net change							8,303	(5,834)
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	5,702		(2,601)		(4,278)		5,702	(4,278)
Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance		121		226		27	121	27
Net change							(204)	193
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	(83)		121		226		(83)	226
Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	1,524	(2,480)	(6,197)	(4,052)	(2,759)	1,307	(2,480)	1,307
Net change	4,095	4,004	3,717	(2,145)	(1,293)	(4,348)
Stockholders' equity, ending balance	$ 5,619	$ 1,524	$ (2,480)	$ (6,197)	$ (4,052)	$ (2,759)	$ 5,619	$ (4,052)

Capital and Regulatory Matter_2

Capital and Regulatory Matters (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Origin Bancorp, Inc.
Common Equity Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 546,659	$ 519,468
Actual, ratio	11.93%	11.94%
Minimum capital required, amount	$ 320,847	$ 304,431
Minimum capital required, ratio	7.00%	7.00%
Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 555,990	$ 528,786
Actual, ratio	12.13%	12.16%
Minimum capital required, amount	$ 389,599	$ 369,668
Minimum capital required, ratio	8.50%	8.50%
Total Capital to Risk-Weighted Assets
Actual, amount	$ 594,507	$ 564,437
Actual, ratio	12.97%	12.98%
Minimum capital required, amount	$ 481,267	$ 456,647
Minimum capital required, ratio	10.50%	10.50%
Leverage Ratio
Actual, amount	$ 555,990	$ 528,786
Actual, ratio	11.10%	11.21%
Minimum capital required, amount	$ 200,377	$ 188,711
Minimum capital required, ratio	4.00%	4.00%
Origin Bank | Origin Bank
Common Equity Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 534,753	$ 508,826
Actual, ratio	11.70%	11.73%
Minimum capital required, amount	$ 319,987	$ 303,621
Minimum capital required, ratio	7.00%	7.00%
Well capitalized, amount	$ 297,131	$ 281,934
Well capitalized, ratio	6.50%	6.50%
Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 534,753	$ 508,826
Actual, ratio	11.70%	11.73%
Minimum capital required, amount	$ 388,556	$ 368,683
Minimum capital required, ratio	8.50%	8.50%
Well capitalized, amount	$ 365,699	$ 346,996
Well capitalized, ratio	8.00%	8.00%
Total Capital to Risk-Weighted Assets
Actual, amount	$ 573,270	$ 544,477
Actual, ratio	12.54%	12.55%
Minimum capital required, amount	$ 479,984	$ 455,430
Minimum capital required, ratio	10.50%	10.50%
Well capitalized, amount	$ 457,128	$ 433,743
Well capitalized, ratio	10.00%	10.00%
Leverage Ratio
Actual, amount	$ 534,753	$ 508,826
Actual, ratio	10.70%	10.81%
Minimum capital required, amount	$ 199,913	$ 188,229
Minimum capital required, ratio	4.00%	4.00%
Well capitalized, amount	$ 249,892	$ 235,287
Well capitalized, ratio	5.00%	5.00%
Aggregate dividends without prior regulatory approval	$ 71,400

Commitments and Contingencies -

Commitments and Contingencies - Off-Balance Sheet Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instrument	$ 1,289,157	$ 1,178,735
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instrument	$ 42,393	$ 46,860

Commitments and Contingencies_2

Commitments and Contingencies - Narrative (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Credit card guarantees	$ 558,075	$ 772,000
FHLB letters of credit	172,200,000	172,000,000
Lending-related Commitments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Reserve for lending related commitments	$ 1,800,000	$ 1,400,000

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event $ in Millions	Aug. 02, 2019USD ($)shares
Subsequent Event [Line Items]
Number of shares of common stock repurchased (in shares) | shares	300,000
Purchase price | $	$ 10.1

Uncategorized Items - obnk-2019

Label	Element	Value
AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 282,000