Origin Bancorp (OBK) 10-Q 4 Nov 21 2021 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Oct. 29, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-38487
Entity Registrant Name	Origin Bancorp, Inc.
Entity Incorporation, State or Country Code	LA
Entity Tax Identification Number	72-1192928
Entity Address, Address Line One	500 South Service Road East
Entity Address, City or Town	Ruston
Entity Address, State or Province	LA
Entity Address, Postal Zip Code	71270
City Area Code	318
Local Phone Number	255-2222
Title of 12(b) Security	Common Stock, par value $5.00 per share
Trading Symbol	OBNK
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		23,496,058
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity CIK	0001516912
Current Fiscal Year End Date	--12-31

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets
Cash and due from banks	$ 124,515	$ 60,544
Interest-bearing deposits in banks	227,450	316,670
Total cash and cash equivalents	351,965	377,214
Securities:
Available for sale	1,486,543	1,004,674
Held to maturity, net allowance for credit losses of $60 and $66 at September 30, 2021, and December 31, 2020, respectively (fair value of $40,415 and $41,205 at September 30, 2021, and December 31, 2020, respectively)	37,702	38,128
Securities carried at fair value through income	10,876	11,554
Total securities	1,535,121	1,054,356
Non-marketable equity securities held in other financial institutions	45,144	62,586
Loans held for sale ($63,001 and $136,026 at fair value at September 30, 2021, and December 31, 2020, respectively)	109,956	191,512
Loans, net of allowance for credit losses of $69,947 and $86,670 at September 30, 2021, and December 31, 2020, respectively ($0 and $17,011 at fair value at September 30, 2021, and December 31, 2020, respectively)	5,117,341	5,638,103
Premises and equipment, net	80,740	81,763
Mortgage servicing rights	16,000	13,660
Cash surrender value of bank-owned life insurance	38,162	37,553
Goodwill and other intangible assets, net	29,830	30,480
Accrued interest receivable and other assets	146,219	141,041
Total assets	7,470,478	7,628,268
Liabilities and Stockholders' Equity
Noninterest-bearing deposits	1,980,107	1,607,564
Interest-bearing deposits	3,600,654	3,478,985
Time deposits	578,007	664,766
Total deposits	6,158,768	5,751,315
Federal Home Loan Bank ("FHLB") advances and other borrowings	309,152	984,608
Subordinated debentures, net	157,357	157,181
Accrued expenses and other liabilities	139,534	88,014
Total liabilities	6,764,811	6,981,118
Commitments and contingencies	0	0
Stockholders' equity:
Preferred stock, no par value, 2,000,000 shares authorized	0	0
Common stock ($5.00 par value; 50,000,000 shares authorized; 23,496,058 and 23,506,312 shares issued at September 30, 2021, and December 31, 2020, respectively)	117,480	117,532
Additional paid‑in capital	237,928	237,341
Retained earnings	338,387	266,628
Accumulated other comprehensive income	11,872	25,649
Total stockholders' equity	705,667	647,150
Total liabilities and stockholders' equity	$ 7,470,478	$ 7,628,268

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Held to maturity, allowance for credit losses	$ 60	$ 66
Held to maturity, fair value	40,415	41,205
Loans held for sale	63,001	136,026
Allowance for credit loss	69,947	86,670
Loans at fair value	$ 0	$ 17,011
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Common stock, par value (in dollars per share)	$ 5	$ 5
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	23,496,058	23,506,312

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest and dividend income
Interest and fees on loans	$ 53,182	$ 54,150	$ 165,521	$ 154,921
Investment securities-taxable	3,449	2,704	9,864	8,148
Investment securities-nontaxable	1,582	1,571	4,844	3,720
Interest and dividend income on assets held in other financial institutions	538	375	1,297	2,491
Total interest and dividend income	58,751	58,800	181,526	169,280
Interest expense
Interest-bearing deposits	3,255	5,698	10,461	22,568
FHLB advances and other borrowings	1,118	1,564	3,493	4,556
Subordinated debentures	1,837	921	5,500	2,439
Total interest expense	6,210	8,183	19,454	29,563
Net interest income	52,541	50,617	162,072	139,717
Provision for credit losses	(3,921)	13,633	(8,118)	53,567
Net interest income after provision for credit losses	56,462	36,984	170,190	86,150
Noninterest income
Mortgage banking revenue	2,728	9,523	10,070	23,009
Gain on sales of securities, net	0	301	1,673	355
Loss on sales and disposals of other assets, net	(8)	(247)	(88)	(1,180)
Limited partnership investment income (loss)	3,078	130	5,651	(290)
Swap fee income	727	110	1,099	2,313
Change in fair value of equity investments	19	0	19	0
Other fee income	783	576	2,177	1,649
Other income	1,172	1,172	3,564	3,823
Total noninterest income	15,923	18,051	45,492	49,271
Noninterest expense
Salaries and employee benefits	23,629	22,597	68,308	68,630
Occupancy and equipment, net	4,353	4,263	13,041	12,751
Data processing	2,329	2,065	6,815	6,143
Electronic banking	997	954	2,947	2,744
Communications	359	422	1,288	1,318
Advertising and marketing	863	1,281	2,291	2,602
Professional services	912	785	2,721	2,799
Regulatory assessments	664	1,310	2,378	2,691
Loan-related expenses	1,949	1,809	5,808	4,460
Office and operations	1,598	1,367	4,550	4,152
Intangible asset amortization	194	237	650	823
Franchise tax expense	598	511	1,846	1,521
Other expenses	720	1,133	3,790	2,417
Total noninterest expense	39,165	38,734	116,433	113,051
Income before income tax expense	33,220	16,301	99,249	22,370
Income tax expense	6,242	3,206	19,025	3,565
Net income	$ 26,978	$ 13,095	$ 80,224	$ 18,805
Basic earnings per common share (in dollars per share)	$ 1.15	$ 0.56	$ 3.43	$ 0.81
Diluted earnings per common share (in dollars per share)	$ 1.14	$ 0.56	$ 3.40	$ 0.80
Service charges and fees
Noninterest income
Revenue from contracts with customers	$ 3,973	$ 3,268	$ 11,055	$ 9,578
Insurance commission and fee income
Noninterest income
Revenue from contracts with customers	$ 3,451	$ 3,218	$ 10,272	$ 10,014

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 26,978	$ 13,095	$ 80,224	$ 18,805
Securities available for sale and transferred securities:
Net unrealized holding (loss) gain arising during the period	(8,990)	1,659	(16,211)	20,574
Net losses realized as a yield adjustment in interest on investment securities	(3)	(3)	(8)	(8)
Reclassification adjustment for net gain included in net income	0	(301)	(1,673)	(355)
Change in the net unrealized (loss) gain on investment securities, before tax	(8,993)	1,355	(17,892)	20,211
Income tax (benefit) expense related to net unrealized (loss) gain arising during the period	(1,888)	12	(3,757)	3,971
Change in the net unrealized gain on investment securities, net of tax	(7,105)	1,343	(14,135)	16,240
Cash flow hedges:
Net unrealized gain (loss) arising during the period	26	7	301	(812)
Reclassification adjustment for loss included in net income	(53)	(46)	(152)	(85)
Change in the net unrealized gain (loss) on cash flow hedges, before tax	79	53	453	(727)
Income tax expense (benefit) related to net unrealized gain (loss) on cash flow hedges	16	11	95	(152)
Change in net unrealized position on cash flow hedges, net of tax	63	42	358	(575)
Other comprehensive (loss) income, net of tax	(7,042)	1,385	(13,777)	15,665
Comprehensive income	$ 19,936	$ 14,480	$ 66,447	$ 34,470

Condensed Consolidated Statemen

Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Adjustment	Common Stock	Additional Paid-In Capital	Retained Earnings	Retained EarningsAdjustment	Accumulated Other Comprehensive Income (loss)
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2019			23,480,945
Stockholders' equity, beginning balance at Dec. 31, 2019	$ 599,262	$ (760)	$ 117,405	$ 235,623	$ 239,901	$ (760)	$ 6,333
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	753				753
Other comprehensive income, net of tax	9,489						9,489
Recognition of stock compensation, net (in shares)			25,871
Recognition of stock compensation, net	784		$ 129	655
Dividends declared - common stock	(2,174)				(2,174)
Repurchase of common stock (in shares)			(30,868)
Repurchase of common stock	(723)		$ (154)	(569)
Common shares outstanding, ending balance (in shares) at Mar. 31, 2020			23,475,948
Stockholders' equity, ending balance at Mar. 31, 2020	606,631		$ 117,380	235,709	237,720		15,822
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2019			23,480,945
Stockholders' equity, beginning balance at Dec. 31, 2019	599,262	$ (760)	$ 117,405	235,623	239,901	$ (760)	6,333
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18,805
Other comprehensive income, net of tax	15,665
Common shares outstanding, ending balance (in shares) at Sep. 30, 2020			23,506,586
Stockholders' equity, ending balance at Sep. 30, 2020	627,637		$ 117,533	236,679	251,427		21,998
Common shares outstanding, beginning balance (in shares) at Mar. 31, 2020			23,475,948
Stockholders' equity, beginning balance at Mar. 31, 2020	606,631		$ 117,380	235,709	237,720		15,822
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,957				4,957
Other comprehensive income, net of tax	4,791						4,791
Recognition of stock compensation, net (in shares)			25,285
Recognition of stock compensation, net	573		$ 126	447
Dividends declared - common stock	(2,171)				(2,171)
Common shares outstanding, ending balance (in shares) at Jun. 30, 2020			23,501,233
Stockholders' equity, ending balance at Jun. 30, 2020	614,781		$ 117,506	236,156	240,506		20,613
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,095				13,095
Other comprehensive income, net of tax	1,385						1,385
Recognition of stock compensation, net (in shares)			5,353
Recognition of stock compensation, net	550		$ 27	523
Dividends declared - common stock	(2,174)				(2,174)
Common shares outstanding, ending balance (in shares) at Sep. 30, 2020			23,506,586
Stockholders' equity, ending balance at Sep. 30, 2020	627,637		$ 117,533	236,679	251,427		21,998
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2020			23,506,312
Stockholders' equity, beginning balance at Dec. 31, 2020	647,150		$ 117,532	237,341	266,628		25,649
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	25,513				25,513
Other comprehensive income, net of tax	(13,464)						(13,464)
Recognition of stock compensation, net (in shares)			20,140
Recognition of stock compensation, net	761		$ 100	661
Dividends declared - common stock	$ (2,349)				(2,349)
Repurchase of common stock (in shares)	(37,568)		(37,568)
Repurchase of common stock	$ (1,256)		$ (188)	(1,068)
Common shares outstanding, ending balance (in shares) at Mar. 31, 2021			23,488,884
Stockholders' equity, ending balance at Mar. 31, 2021	656,355		$ 117,444	236,934	289,792		12,185
Common shares outstanding, beginning balance (in shares) at Dec. 31, 2020			23,506,312
Stockholders' equity, beginning balance at Dec. 31, 2020	647,150		$ 117,532	237,341	266,628		25,649
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	80,224
Other comprehensive income, net of tax	(13,777)
Common shares outstanding, ending balance (in shares) at Sep. 30, 2021			23,496,058
Stockholders' equity, ending balance at Sep. 30, 2021	705,667		$ 117,480	237,928	338,387		11,872
Common shares outstanding, beginning balance (in shares) at Mar. 31, 2021			23,488,884
Stockholders' equity, beginning balance at Mar. 31, 2021	656,355		$ 117,444	236,934	289,792		12,185
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	27,733				27,733
Other comprehensive income, net of tax	6,729						6,729
Recognition of stock compensation, net (in shares)			13,331
Recognition of stock compensation, net	471		$ 67	404
Dividends declared - common stock	(3,053)				(3,053)
Common shares outstanding, ending balance (in shares) at Jun. 30, 2021			23,502,215
Stockholders' equity, ending balance at Jun. 30, 2021	688,235		$ 117,511	237,338	314,472		18,914
Common shares outstanding, beginning balance (in shares) at Mar. 31, 2021			23,488,884
Stockholders' equity, beginning balance at Mar. 31, 2021	$ 656,355		$ 117,444	236,934	289,792		12,185
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase of common stock (in shares)	0
Common shares outstanding, ending balance (in shares) at Sep. 30, 2021			23,496,058
Stockholders' equity, ending balance at Sep. 30, 2021	$ 705,667		$ 117,480	237,928	338,387		11,872
Common shares outstanding, beginning balance (in shares) at Jun. 30, 2021			23,502,215
Stockholders' equity, beginning balance at Jun. 30, 2021	688,235		$ 117,511	237,338	314,472		18,914
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	26,978				26,978
Other comprehensive income, net of tax	(7,042)						(7,042)
Recognition of stock compensation, net (in shares)			(6,157)
Recognition of stock compensation, net	559		$ (31)	590
Dividends declared - common stock	(3,063)				(3,063)
Common shares outstanding, ending balance (in shares) at Sep. 30, 2021			23,496,058
Stockholders' equity, ending balance at Sep. 30, 2021	$ 705,667		$ 117,480	$ 237,928	$ 338,387		$ 11,872

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Statement of Stockholders' Equity [Abstract]
Common stock dividends declared (in dollars per share)	$ 0.13	$ 0.13	$ 0.10	$ 0.0925	$ 0.0925	$ 0.0925

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income	$ 80,224	$ 18,805
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for credit losses	(8,118)	53,567
Depreciation and amortization	5,123	5,177
Net amortization on securities	5,376	2,926
Amortization of investments in tax credit funds	1,345	1,077
Net realized gain on securities sold	(1,673)	(355)
Deferred income tax expense (benefit)	4,760	(10,302)
Stock-based compensation expense	1,644	1,659
Originations of mortgage loans held for sale	(386,298)	(500,353)
Proceeds from mortgage loans held for sale	448,747	447,267
Gain on mortgage loans held for sale, including origination of servicing rights	(10,014)	(12,883)
Mortgage servicing rights valuation adjustment	1,942	10,680
Net loss on disposals of premises and equipment	7	68
Increase in the cash surrender value of life insurance	(609)	(696)
Gain on equity securities without a readily determinable fair value	(19)	0
Net losses on sales and write-downs of other real estate owned	81	1,031
Other operating activities, net	2,155	(9,584)
Net cash provided by operating activities	144,673	8,084
Cash flows from investing activities:
Purchases of securities available for sale	(599,586)	(408,558)
Maturities, pay downs and calls of securities available for sale	105,163	101,065
Proceeds from sales of securities available for sale	43,053	35,208
Purchase of securities held to maturity	0	(10,000)
Maturities, pay downs and calls of securities held to maturity	424	275
Pay downs of securities carried at fair value	265	250
Net sales of non-marketable equity securities held in other financial institutions	17,600	2,093
Originations of mortgage warehouse loans	(12,825,009)	(8,624,764)
Proceeds from pay-offs of mortgage warehouse loans	13,195,671	7,881,922
Net decrease (increase) in loans, excluding mortgage warehouse and loans held for sale	164,203
Net decrease (increase) in loans, excluding mortgage warehouse and loans held for sale		(735,728)
Return of capital on limited partnership investments	0	743
Capital calls on limited partnership investments	(225)	(525)
Purchase of low-income housing tax credit investments	(383)	0
Purchases of premises and equipment	(3,475)	(3,219)
Proceeds from sales of premises and equipment	18	0
Proceeds from sales of other real estate owned	1,396	3,483
Net cash provided by (used in) investing activities	99,115	(1,757,755)
Cash flows from financing activities:
Net increase in deposits	407,453	1,707,313
Repayments on long-term FHLB advances	(13,654)	(1,298)
Proceeds from Federal Reserve Bank Paycheck Protection Program Liquidity Facility ("PPPLF")	0	319,257
Repayments on PPPLF	0	(319,257)
Proceeds from short-term FHLB advances	5,726,000	816,000
Repayments on short-term FHLB advances	(6,376,000)	(896,000)
Issuance of subordinated debentures, net	0	68,847
Net decrease in securities sold under agreements to repurchase	(3,272)	(7,820)
Dividends paid	(8,454)	(6,503)
Cash received from exercise of stock options	146	248
Common stock repurchased	(1,256)	(723)
Net cash (used in) provided by financing activities	(269,037)	1,680,064
Net decrease in cash and cash equivalents	(25,249)	(69,607)
Cash and cash equivalents at beginning of period	377,214	291,518
Cash and cash equivalents at end of period	351,965	221,911
Interest paid	20,016	30,028
Income taxes paid	21,214	24,974
Significant non-cash transactions:
Unsettled liability for investment purchases recorded at trade date	53,600	8,917
Real estate acquired in settlement of loans	$ 3,889	$ 588

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Sep. 30, 2021
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 44 banking centers located in Dallas/Fort Worth and Houston, Texas, North Louisiana and in Mississippi. The Company principally operates in one business segment, community banking. Basis of Presentation . The 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, doing business as Thomas & Farr Agency, and Reeves, Coon and Funderburg. All significant intercompany balances and transactions have been eliminated in consolidation. The Company's accounting and financial reporting policies conform, in all material respects, to generally accepted accounting principles in the United States ("U.S. GAAP") and to general practices within the financial services industry. The Company has evaluated subsequent events for potential recognition and/or disclosure through the date these consolidated financial statements were issued. The 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, 2020, but in the opinion of management, reflect all adjustments necessary for a fair presentation of the Company's financial position and results of operations for the periods presented. These 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 consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2020, included in the Company's annual report on Form 10-K ("2020 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 period 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. Use of Estimates . The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions based on available information that affect the amounts reported in the financial statements and disclosures provided, including the accompanying notes, and actual results could differ. Material estimates that are particularly susceptible to change include the allowance for credit losses for loans and available for sale securities; 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. Effect of Recently Adopted Accounting Standards ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. ASU 2019-12 simplifies the accounting for income taxes by eliminating some exceptions to the general approach in Accounting Standards Codification (ASC) 740, Income Taxes. It also clarifies certain aspects of the existing guidance to promote more consistent application, among other things. The amendments were implemented effective January 1, 2021. Implementation of this ASU did not materially impact the consolidated financial statements or disclosures. Effect of Newly Issued But Not Yet Effective Accounting Standards ASU No. 2021-06, Presentation of Financial Statements (Topic 205), Financial Services —Depository and Lending (Topic 942), and Financial Services — Investment Companies (Topic 946) —Amendments to SEC Paragraphs Pursuant to SEC Final Rule Releases No. 33-10786, Amendments to Financial Disclosures about Acquired and Disposed Businesses, and No. 33-10835, Update of Statistical Disclosures for Bank and Savings and Loan Registrants amends the Accounting Standards Codification in order to agree the Codification to the new SEC releases 33-10786 and 33-10835 (the "Releases"). The Releases clearly define whether an acquired or disposed business subsidiary is significant; update, expand and eliminate certain disclosures; eliminate overlap with certain SEC and GAAP rules; and add a new subpart of Regulation S-K. The ASU is effective upon issuance, however, the SEC release on which the ASU is based is effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years, while certain disclosures related to Guide 3 are effective January 1, 2023. Implementation of this ASU is not expected to materially impact financial statement disclosures.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Note 2 - Earnings Per Share Basic and diluted earnings per common share 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. Information regarding the Company's basic and diluted earnings per common share is presented in the following table: (Dollars in thousands, except per share amounts) Three Months Ended September 30, Nine Months Ended September 30, Numerator: 2021 2020 2021 2020 Net income $ 26,978 $ 13,095 $ 80,224 $ 18,805 Denominator: Weighted average common shares outstanding 23,429,705 23,374,496 23,413,794 23,358,672 Dilutive effect of stock-based awards 183,305 126,100 192,803 140,166 Weighted average diluted common shares outstanding 23,613,010 23,500,596 23,606,597 23,498,838 Basic earnings per common share $ 1.15 $ 0.56 $ 3.43 $ 0.81 Diluted earnings per common share 1.14 0.56 3.40 0.80

Securities

Securities	9 Months Ended
	Sep. 30, 2021
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 the allowance for credit losses and 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) September 30, 2021 Amortized Gross Gross Fair Allowance for Credit Losses Net Carrying Amount Available for sale: State and municipal securities $ 397,635 $ 13,551 $ (2,453) $ 408,733 $ — $ 408,733 Corporate bonds 76,260 2,708 (141) 78,827 — 78,827 U.S. government and agency securities 99,101 15 (615) 98,501 — 98,501 Commercial mortgage-backed securities 39,931 222 (715) 39,438 — 39,438 Residential mortgage-backed securities 553,202 5,090 (2,941) 555,351 — 555,351 Commercial collateralized mortgage obligations 10,596 — (159) 10,437 — 10,437 Residential collateralized mortgage obligations 211,293 825 (1,687) 210,431 — 210,431 Asset-backed securities 83,330 1,495 — 84,825 — 84,825 Total $ 1,471,348 $ 23,906 $ (8,711) $ 1,486,543 $ — $ 1,486,543 Held to maturity: State and municipal securities $ 37,762 $ 2,653 $ — $ 40,415 $ (60) $ 37,702 Securities carried at fair value through income: State and municipal securities (1) $ 10,353 $ — $ — $ 10,876 $ — $ 10,876 December 31, 2020 Available for sale: State and municipal securities $ 420,559 $ 21,884 $ (258) $ 442,185 $ — $ 442,185 Corporate bonds 64,313 1,762 (137) 65,938 — 65,938 U.S. government and agency securities 851 3 (5) 849 — 849 Commercial mortgage-backed securities 10,814 266 — 11,080 — 11,080 Residential mortgage-backed securities 207,742 7,441 (232) 214,951 — 214,951 Residential collateralized mortgage obligations 193,865 1,739 (261) 195,343 — 195,343 Asset-backed securities 73,451 877 — 74,328 — 74,328 Total $ 971,595 $ 33,972 $ (893) $ 1,004,674 $ — $ 1,004,674 Held to maturity: State and municipal securities $ 38,194 $ 3,011 $ — $ 41,205 $ (66) $ 38,128 Securities carried at fair value through income: State and municipal securities (1) $ 10,618 $ — $ — $ 11,554 $ — $ 11,554 ____________________________ (1) Securities carried at fair value through income have no unrealized gains or losses at the balance sheet date as all changes in value have been recognized in the consolidated statements of income. See Note 5 - Fair Value of Financial Instruments for more information. Securities with unrealized losses at September 30, 2021, and December 31, 2020, 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. Less than 12 Months 12 Months or More Total (Dollars in thousands) September 30, 2021 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: State and municipal securities $ 116,139 $ (2,108) $ 9,983 $ (345) $ 126,122 $ (2,453) Corporate bonds 11,907 (93) 2,952 (48) 14,859 (141) U.S. government and agency securities 52,655 (613) 464 (2) 53,119 (615) Commercial mortgage-backed securities 36,978 (715) — — 36,978 (715) Residential mortgage-backed securities 372,308 (2,902) 1,815 (39) 374,123 (2,941) Commercial collateralized mortgage obligations 10,437 (159) — — 10,437 (159) Residential collateralized mortgage obligations 125,886 (1,358) 20,323 (329) 146,209 (1,687) Total $ 726,310 $ (7,948) $ 35,537 $ (763) $ 761,847 $ (8,711) Held to maturity: State and municipal securities $ — $ — $ — $ — $ — $ — December 31, 2020 Available for sale: State and municipal securities $ 21,979 $ (258) $ — $ — $ 21,979 $ (258) Corporate bonds 30,513 (137) — — 30,513 (137) U.S. government and agency securities — — 568 (5) 568 (5) Residential mortgage-backed securities 23,178 (232) — — 23,178 (232) Residential collateralized mortgage obligations 43,911 (261) — — 43,911 (261) Total $ 119,581 $ (888) $ 568 $ (5) $ 120,149 $ (893) Held to maturity: State and municipal securities $ — $ — $ — $ — $ — $ — Management evaluates available for sale debt securities in unrealized loss positions to determine whether the impairment is due to credit-related factors or non credit-related factors. Consideration is given to (1) the extent to which the fair value is less than cost, (2) the financial condition and near-term prospects of the issuer, and (3) the intent and ability of the Company to retain its investment in the security for a period of time sufficient to allow for any anticipated recovery in fair value. Management does not have the intent to sell any of the securities in an unrealized loss position and believes that it is more likely than not that the Company will not have to sell any such securities before a recovery of cost. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such investments decline. Accordingly, at September 30, 2021, management believes that the unrealized losses detailed in the previous table are due to non credit-related factors, including changes in interest rates and other market conditions, and therefore no losses have been recognized in the Company’s consolidated statements of income. The following table presents the activity in the allowance for credit losses for held-to-maturity debt securities. (Dollars in thousands) Municipal Securities Allowance for credit losses: Balance at January 1, 2021 $ 66 Credit loss recovery (6) Balance at September 30, 2021 $ 60 Balance at January 1, 2020 $ — Impact of adopting ASC 326 96 Credit loss expense 48 Balance at September 30, 2020 $ 144 Accrued interest of $6.0 million and $4.4 million was not included in the calculation of the allowance at September 30, 2021, or September 30, 2020, respectively. There were no past due held-to-maturity securities or held-to-maturity securities in nonaccrual status at September 30, 2021, or December 31, 2020. Proceeds from sales and calls, and related gross gains and losses of securities available for sale, are shown below. Nine Months Ended September 30, (Dollars in thousands) 2021 2020 Proceeds from sales/calls $ 43,053 $ 35,208 Gross realized gains 1,705 434 Gross realized losses (32) (79) The following table presents the amortized cost and fair value of securities available for sale and held to maturity at September 30, 2021, grouped by contractual maturity. Mortgage-backed securities, collateralized mortgage obligations and asset-backed securities, which do not have contractual payments due at a single maturity date, are shown separately. Actual maturities for mortgage-backed securities, collateralized mortgage obligations and asset-backed securities will differ from contractual maturities as a result of prepayments made on the underlying loans. (Dollars in thousands) Held to Maturity Available for Sale September 30, 2021 Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 12,574 $ 12,579 $ 3,553 $ 3,573 Due after one year through five years — — 116,012 120,144 Due after five years through ten years 25,188 27,836 155,246 158,315 Due after ten years — — 298,185 304,029 Commercial mortgage-backed securities — — 39,931 39,438 Residential mortgage-backed securities — — 553,202 555,351 Commercial collateralized mortgage obligations — — 10,596 10,437 Residential collateralized mortgage obligations — — 211,293 210,431 Asset-backed securities — — 83,330 84,825 Total $ 37,762 $ 40,415 $ 1,471,348 $ 1,486,543 The following table presents carrying amounts of securities pledged as collateral for deposits and repurchase agreements for the period ends presented. (Dollars in thousands) September 30, 2021 December 31, 2020 Carrying value of securities pledged to secure public deposits $ 244,534 $ 289,537 Carrying value of securities pledged to repurchase agreements 11,669 10,982

Loans

Loans	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Loans	Note 4 - Loans Loans consist of the following: (Dollars in thousands) September 30, 2021 December 31, 2020 Loans held for sale $ 109,956 $ 191,512 LHFI: Loans secured by real estate: Commercial real estate $ 1,590,519 $ 1,370,928 Construction/land/land development 518,920 531,860 Residential real estate 913,411 885,120 Total real estate 3,022,850 2,787,908 Commercial and industrial (1) 1,435,203 1,817,862 Mortgage warehouse lines of credit 713,339 1,084,001 Consumer 15,896 17,991 Total loans accounted for at amortized cost 5,187,288 5,707,762 Loans accounted for at fair value — 17,011 Total LHFI (2) 5,187,288 5,724,773 Less: Allowance for loan losses 69,947 86,670 LHFI, net $ 5,117,341 $ 5,638,103 ____________________________ (1) Includes $217.0 million and $546.5 million of PPP loans at September 30, 2021 and December 31, 2020, respectively. (2) Includes net deferred loan fees of $11.7 million and $13.7 million at September 30, 2021, and December 31, 2020, respectively. Included in loans held for investment ("LHFI") were zero and $17.0 million of commercial real estate loans for which the fair value option was elected at September 30, 2021 and December 31, 2020, 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. The Company has been a participating lender in the Paycheck Protection Program ("PPP"). At September 30, 2021, there were approximately $217.0 million in PPP loans outstanding included in the Company’s commercial and industrial loan portfolio, including $6.3 million in net deferred loan fees. PPP loans have a maximum maturity of five years and earn interest at 1%. PPP loans are fully guaranteed by the U.S. government and can be forgiven by the Small Business Administration ("SBA") if the borrower uses the proceeds to pay specified expenses. The Company believes that the majority of its PPP loans will ultimately be forgiven by the SBA in accordance with the terms of the program, and as of September 30, 2021, forgiveness has been granted on $558.7 million of PPP loans. 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 (defined as substandard, doubtful and loss), 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. In connection with the review of the loan portfolio, the Company considers risk elements attributable to particular loan types or categories in assessing the quality of individual loans. The list of loans to be reviewed for possible individual evaluation consists of nonaccrual commercial loans over $100,000 with direct exposure, unsecured loans over 90 days past due, commercial loans classified substandard or worse over $100,000 with direct exposure, troubled debt restructurings ("TDRs"), consumer loans greater than $100,000 with a FICO score under 625, loans greater than $100,000 in which the borrower has filed bankruptcy, and all loans 180 days or more past due. Loans under $50,000 will be evaluated collectively in designated pools unless a loss exposure has been identified. Some additional risk elements considered by loan type include: • for commercial real estate loans, the debt service coverage ratio, operating results of the owner in the case of owner-occupied properties, the loan to value ratio, the age and condition of the collateral and the volatility of income, property value and future operating results typical of properties of that type; • for construction, land and land development loans, the perceived feasibility of the project, including the ability to sell developed lots or improvements constructed for resale or the ability to lease property constructed for lease, the quality and nature of contracts for presale or prelease, if any, experience and ability of the developer and loan to value ratio; • for residential mortgage loans, the borrower's ability to repay the loan, including a consideration of the debt to income ratio and employment and income stability, the loan-to-value ratio, and the age, condition and marketability of the collateral; and • for commercial and industrial loans, the debt service coverage ratio (income from the business in excess of operating expenses compared to loan repayment requirements), the operating results of the commercial, industrial or professional enterprise, the borrower's business, professional and financial ability and expertise, the specific risks and volatility of income and operating results typical for businesses in that category and the value, nature and marketability of collateral. The following table reflects recorded investments in loans by credit quality indicator and origination year at September 30, 2021, excluding loans held for sale and loans accounted for at fair value. The Company had an immaterial amount of revolving loans converted to term loans at September 30, 2021. Term Loans Amortized Cost Basis by Origination Year 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: Pass $ 362,257 $ 398,932 $ 295,133 $ 253,886 $ 123,844 $ 95,542 $ 21,561 $ 1,551,155 Special mention 4,321 — — 8,474 17,324 — — 30,119 Classified 2,067 950 915 2,527 302 2,321 163 9,245 Total commercial real estate loans $ 368,645 $ 399,882 $ 296,048 $ 264,887 $ 141,470 $ 97,863 $ 21,724 $ 1,590,519 Current period gross charge-offs $ — $ — $ — $ 80 $ 24 $ 26 $ — $ 130 Current period gross recoveries — — — — — 10 — 10 Current period net charge-offs (recoveries) $ — $ — $ — $ 80 $ 24 $ 16 $ — $ 120 Construction/land/land development: Pass $ 191,832 $ 118,126 $ 102,047 $ 53,742 $ 5,669 $ 756 $ 24,832 $ 497,004 Special mention — — 6,817 436 1,776 — — 9,029 Classified 690 304 187 187 38 54 11,427 12,887 Total construction/land/land development loans $ 192,522 $ 118,430 $ 109,051 $ 54,365 $ 7,483 $ 810 $ 36,259 $ 518,920 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ — $ — $ — Residential real estate: Pass $ 233,927 $ 304,579 $ 108,650 $ 74,732 $ 47,271 $ 74,351 $ 54,086 $ 897,596 Special mention — 177 147 — 482 285 — 1,091 Classified 476 170 2,298 2,964 1,949 6,602 265 14,724 Total residential real estate loans $ 234,403 $ 304,926 $ 111,095 $ 77,696 $ 49,702 $ 81,238 $ 54,351 $ 913,411 Current period gross charge-offs $ — $ — $ 58 $ — $ — $ — $ — $ 58 Current period gross recoveries — 21 — — 25 35 — 81 Current period net charge-offs (recoveries) $ — $ (21) $ 58 $ — $ (25) $ (35) $ — $ (23) Term Loans Amortized Cost Basis by Origination Year 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Total (Dollars in thousands) Commercial and industrial: Pass $ 430,671 $ 226,901 $ 117,343 $ 75,605 $ 16,970 $ 26,823 $ 491,920 $ 1,386,233 Special mention 775 2,180 1,743 2,131 — — 3,501 10,330 Classified 14,177 397 2,179 4,025 4,324 3,761 9,777 38,640 Total commercial and industrial loans $ 445,623 $ 229,478 $ 121,265 $ 81,761 $ 21,294 $ 30,584 $ 505,198 $ 1,435,203 Current period gross charge-offs $ 9 $ 1,172 $ 54 $ — $ 467 $ 5,449 $ 1,679 $ 8,830 Current period gross recoveries — 6 42 3 87 185 29 352 Current period net charge-offs (recoveries) $ 9 $ 1,166 $ 12 $ (3) $ 380 $ 5,264 $ 1,650 $ 8,478 Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 713,339 $ 713,339 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 5,084 $ 2,806 $ 1,735 $ 673 $ 76 $ 80 $ 5,401 $ 15,855 Classified 8 21 3 — — 2 7 41 Total consumer loans $ 5,092 $ 2,827 $ 1,738 $ 673 $ 76 $ 82 $ 5,408 $ 15,896 Current period gross charge-offs $ — $ — $ 25 $ 2 $ — $ 9 $ 18 $ 54 Current period gross recoveries — — 9 7 1 15 4 36 Current period net charge-offs (recoveries) $ — $ — $ 16 $ (5) $ (1) $ (6) $ 14 $ 18 The following table reflects recorded investments in loans by credit quality indicator and origination year at December 31, 2020, excluding loans held for sale and loans accounted for at fair value. The Company had an immaterial amount of revolving loans converted to term loans at December 31, 2020. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: (1) Pass $ 393,317 $ 290,394 $ 312,051 $ 154,445 $ 46,132 $ 106,994 $ 18,419 $ 1,321,752 Special mention 824 113 2,410 20,691 — 1,656 2,145 27,839 Classified 2,806 1,678 6,704 6,586 1,476 1,093 994 21,337 Total commercial real estate loans $ 396,947 $ 292,185 $ 321,165 $ 181,722 $ 47,608 $ 109,743 $ 21,558 $ 1,370,928 Current period gross charge-offs $ — $ — $ — $ 3,622 $ 199 $ 1,103 $ — $ 4,924 Current period gross recoveries — — — — — 19 — 19 Current period net charge-offs $ — $ — $ — $ 3,622 $ 199 $ 1,084 $ — $ 4,905 (1) Excludes $17.0 million of commercial real estate loans at fair value at December 31, 2020, which are not included in the loss estimation methodology due to the fair value option election. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Total Construction/land/land development: Pass $ 189,311 $ 150,281 $ 138,000 $ 12,907 $ 1,812 $ 1,157 $ 18,892 $ 512,360 Special mention 323 10,421 135 1,003 — — — 11,882 Classified — 1,811 726 1,507 143 168 3,263 7,618 Total construction/land/land development loans $ 189,634 $ 162,513 $ 138,861 $ 15,417 $ 1,955 $ 1,325 $ 22,155 $ 531,860 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — 1 — 1 Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ (1) $ — $ (1) Residential real estate: Pass $ 367,652 $ 143,368 $ 103,450 $ 102,272 $ 41,522 $ 50,094 $ 53,854 $ 862,212 Special mention 188 — 29 1,875 9,287 803 — 12,182 Classified 1,857 2,403 2,982 511 1,344 1,533 96 10,726 Total residential real estate loans $ 369,697 $ 145,771 $ 106,461 $ 104,658 $ 52,153 $ 52,430 $ 53,950 $ 885,120 Current period gross charge-offs $ 94 $ 271 $ — $ 283 $ — $ 44 $ — $ 692 Current period gross recoveries — — — — — 202 — 202 Current period net charge-offs (recoveries) $ 94 $ 271 $ — $ 283 $ — $ (158) $ — $ 490 Commercial and industrial: Pass $ 851,780 $ 153,722 $ 110,092 $ 29,413 $ 9,927 $ 26,964 $ 511,220 $ 1,693,118 Special mention 4,860 2,059 26,438 423 — 14,843 8,077 56,700 Classified 5,436 12,250 5,859 5,450 5,950 6,707 26,392 68,044 Total commercial and industrial loans $ 862,076 $ 168,031 $ 142,389 $ 35,286 $ 15,877 $ 48,514 $ 545,689 $ 1,817,862 Current period gross charge-offs $ 189 $ 204 $ 87 $ 121 $ 3,228 $ 469 $ 2,404 $ 6,702 Current period gross recoveries — 42 20 81 185 112 582 1,022 Current period net charge-offs $ 189 $ 162 $ 67 $ 40 $ 3,043 $ 357 $ 1,822 $ 5,680 Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 1,084,001 $ 1,084,001 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 6,702 $ 3,318 $ 1,578 $ 203 $ 116 $ 83 $ 5,935 $ 17,935 Classified 28 8 — — 6 1 13 56 Total consumer loans $ 6,730 $ 3,326 $ 1,578 $ 203 $ 122 $ 84 $ 5,948 $ 17,991 Current period gross charge-offs $ — $ 39 $ 23 $ 8 $ — $ 4 $ 2 $ 76 Current period gross recoveries — — 1 7 5 7 4 24 Current period net charge-offs (recoveries) $ — $ 39 $ 22 $ 1 $ (5) $ (3) $ (2) $ 52 The following tables present the Company's loan portfolio aging analysis at the dates indicated: September 30, 2021 (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 $ — $ — $ 237 $ 237 $ 1,590,282 $ 1,590,519 $ — Construction/land/land development 167 52 — 219 518,701 518,920 — Residential real estate 340 85 7,917 8,342 905,069 913,411 — Total real estate 507 137 8,154 8,798 3,014,052 3,022,850 — Commercial and industrial 850 2,498 13,648 16,996 1,418,207 1,435,203 — Mortgage warehouse lines of credit — — — — 713,339 713,339 — Consumer 137 23 — 160 15,736 15,896 — Total LHFI $ 1,494 $ 2,658 $ 21,802 $ 25,954 $ 5,161,334 $ 5,187,288 $ — December 31, 2020 (Dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Loans Past Due 90 Days or More Total Past Due Current Loans Total Loans Receivable Accruing Loans 90 or More Days Past Due Loans secured by real estate: Commercial real estate (1) $ 1,072 $ — $ 3,172 $ 4,244 $ 1,383,695 $ 1,387,939 $ — Construction/land/land development 369 1 2,328 2,698 529,162 531,860 — Residential real estate 3,774 134 364 4,272 880,848 885,120 — Total real estate 5,215 135 5,864 11,214 2,793,705 2,804,919 — Commercial and industrial 703 1,097 12,625 14,425 1,803,437 1,817,862 — Mortgage warehouse lines of credit — — — — 1,084,001 1,084,001 — Consumer 113 9 2 124 17,867 17,991 — Total LHFI $ 6,031 $ 1,241 $ 18,491 $ 25,763 $ 5,699,010 $ 5,724,773 $ — ____________________________ (1) Includes $17.0 million of commercial real estate loans at fair value. The following tables detail activity in the allowance for loan credit losses by portfolio segment. Accrued interest of $16.3 million and $19.3 million was not included in the book value for the purposes of calculating the allowance at September 30, 2021, and September 30, 2020, respectively. 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 September 30, 2021 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (1) Ending Balance Loans secured by real estate: Commercial real estate $ 16,282 $ — $ 4 $ (367) $ 15,919 Construction/land/land development 5,602 — — (593) 5,009 Residential real estate 9,059 — 64 (3,004) 6,119 Commercial and industrial 45,049 3,030 58 (216) 41,861 Mortgage warehouse lines of credit 560 — — (90) 470 Consumer 552 5 18 4 569 Total $ 77,104 $ 3,035 $ 144 $ (4,266) $ 69,947 ____________________________ (1) The $3.9 million net benefit for credit losses on the consolidated statements of income includes a $4.3 million net loan loss benefit, a $356,000 provision for off-balance sheet commitments and a $11,000 provision benefit for held to maturity securities credit losses for the three months ended September 30, 2021. Three Months Ended September 30, 2020 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (1) Ending Balance Loans secured by real estate: Commercial real estate $ 10,046 $ 200 $ — $ 4,503 $ 14,349 Construction/land/land development 6,860 — 1 1,589 8,450 Residential real estate 6,911 549 11 1,853 8,226 Commercial and industrial 45,281 1,517 480 4,519 48,763 Mortgage warehouse lines of credit 602 — — 302 904 Consumer 768 27 6 204 951 Total $ 70,468 $ 2,293 $ 498 $ 12,970 $ 81,643 ____________________________ (1) The $13.6 million provision for credit losses on the consolidated statements of income includes a $13.0 million net loan loss provision, a $663,000 provision for off-balance sheet commitments and no provision for held to maturity securities credit losses for the three months ended September 30, 2020. Nine Months Ended September 30, 2021 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (1) Ending Balance Loans secured by real estate: Commercial real estate $ 15,430 $ 130 $ 10 $ 609 $ 15,919 Construction/land/land development 8,191 — — (3,182) 5,009 Residential real estate 9,418 58 81 (3,322) 6,119 Commercial and industrial 51,857 8,830 352 (1,518) 41,861 Mortgage warehouse lines of credit 856 — — (386) 470 Consumer 918 54 36 (331) 569 Total $ 86,670 $ 9,072 $ 479 $ (8,130) $ 69,947 (1) The $8.1 million net benefit for credit losses on the consolidated statements of income includes a $8.1 million net loan loss benefit, a $19,000 provision for off-balance sheet commitments and a $6,000 provision benefit for held to maturity securities credit losses for the nine months ended September 30, 2021. Nine Months Ended September 30, 2020 (Dollars in thousands) Beginning Balance Impact of Adopting ASC 326 Charge-offs Recoveries Provision (1) Ending Balance Loans secured by real estate: Commercial real estate $ 10,013 $ (5,052) $ 3,868 $ 6 $ 13,250 $ 14,349 Construction/land/land development 3,711 1,141 — 1 3,597 8,450 Residential real estate 6,332 (2,526) 598 180 4,838 8,226 Commercial and industrial 16,960 7,296 5,770 736 29,541 48,763 Mortgage warehouse lines of credit 262 29 — — 613 904 Consumer 242 360 69 13 405 951 Total $ 37,520 $ 1,248 $ 10,305 $ 936 $ 52,244 $ 81,643 (1) The $53.6 million provision for credit losses on the consolidated statements of income includes a $52.2 million net loan loss provision, a $1.3 million provision for off-balance sheet commitments and a $48,000 provision for held to maturity securities credit losses for the nine months ended September 30, 2020. The decrease in provision expense compared to the quarter and nine months ended September 30, 2020, was primarily due to improvement in forecasted economic conditions during the quarter and nine months ended September 30, 2021, as compared to deteriorating economic conditions during the quarter and nine months ended September 30, 2020. The Company's credit quality profile in relation to the allowance for loan credit losses drove a decline of $21.7 million in the collectively evaluated portion of the reserve during the nine months ended September 30, 2021, of which a $16.7 million decrease was related to qualitative factor changes across the Company's risk pools for the nine months ended September 30, 2021. These declines were partially offset by an increase in certain specific loan reserves, at September 30, 2021. The provision for loan credit losses for the nine months ended September 30, 2020, was driven by uncertainty related to the economic impact and duration of the COVID-19 pandemic. Based upon the requirement of CECL, economic forecasts are essential for estimating the life of loan losses. The increased risk, as reflected in current and forecast adjustments, resulted in approximately $29.2 million in provision expense across the Company’s risk pools for the nine months ended September 30, 2020. An additional $5.9 million in provision expense was due to the current and forecast effects of individually evaluated loans. The provision for commercial and industrial loans included approximately $16.4 million related to current and forecasted factors as well as approximately $5.8 million related to individually evaluated loans. There were two significant charge-offs in commercial and industrial loans during the nine months ended September 30, 2020 totaling $2.5 million, as well as two significant charge-offs in commercial real estate loans totaling $3.4 million during the same period. The following tables show the recorded investment in loans by loss estimation methodology, excluding loans for which the fair value option was elected at December 31, 2020. There were no LHFI for which the fair value option was elected at September 30, 2021. September 30, 2021 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate $ 1,588,069 $ 237 $ 2,213 $ 1,590,519 Construction/land/land development 518,326 287 307 518,920 Residential real estate 904,482 8,335 594 913,411 Commercial and industrial 1,420,616 8,552 6,035 1,435,203 Mortgage warehouse lines of credit 713,339 — — 713,339 Consumer 15,895 1 — 15,896 Total $ 5,160,727 $ 17,412 $ 9,149 $ 5,187,288 December 31, 2020 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate (1) $ 1,365,284 $ 3,173 $ 2,471 $ 1,370,928 Construction/land/land development 528,894 2,621 345 531,860 Residential real estate 879,015 2,009 4,096 885,120 Commercial and industrial 1,804,049 3,152 10,661 1,817,862 Mortgage warehouse lines of credit 1,084,001 — — 1,084,001 Consumer 17,991 — — 17,991 Total $ 5,679,234 $ 10,955 $ 17,573 $ 5,707,762 ____________________________ (1) Excludes $17.0 million of commercial real estate loans at fair value, which are not included in the loss estimation methodology due to the fair value option election. The following tables show the allowance for loan credit losses by loss estimation methodology at September 30, 2021, and December 31, 2020. September 30, 2021 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate $ 15,907 $ — $ 12 $ 15,919 Construction/land/land development 5,001 — 8 5,009 Residential real estate 6,103 16 — 6,119 Commercial and industrial 28,681 7,700 5,480 41,861 Mortgage warehouse lines of credit 470 — — 470 Consumer 568 1 — 569 Total $ 56,730 $ 7,717 $ 5,500 $ 69,947 December 31, 2020 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate $ 14,896 $ 525 $ 9 $ 15,430 Construction/land/land development 8,062 128 1 8,191 Residential real estate 8,983 — 435 9,418 Commercial and industrial 44,714 1,707 5,436 51,857 Mortgage warehouse lines of credit 856 — — 856 Consumer 918 — — 918 Total $ 78,429 $ 2,360 $ 5,881 $ 86,670 Note that the Company is not using the collateral maintenance agreement practical expedient. The fair value of equipment collateral that secures commercial and industrial loans is estimated by third-party valuation experts. Collateral-dependent loans consist primarily of commercial real estate and commercial and industrial loans. These loans are individually evaluated when foreclosure is probable or when the repayment of the loan is expected to be provided substantially through the operation or sale of the underlying collateral. Loan balances are charged down to the underlying collateral value when they are deemed uncollectible. Nonaccrual LHFI were as follows: Nonaccrual With No Nonaccrual (Dollars in thousands) Loans secured by real estate: September 30, 2021 December 31, 2020 September 30, 2021 December 31, 2020 Commercial real estate $ 641 $ 1,053 $ 672 $ 3,704 Construction/land/land development 342 1,319 592 2,962 Residential real estate 7,883 2,436 9,377 6,530 Total real estate 8,866 4,808 10,641 13,196 Commercial and industrial 62 82 13,873 12,897 Consumer — — 41 56 Total nonaccrual loans $ 8,928 $ 4,890 $ 24,555 $ 26,149 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. At September 30, 2021, the Company had no funding commitments for which the terms have been modified in TDRs. For the nine months ended September 30, 2021 and 2020, gross interest income that would have been recorded had the nonaccruing loans been current in accordance with their original terms was $1.4 million and $1.1 million, respectively. No interest income was recorded on these loans while they were considered nonaccrual during the nine months ended September 30, 2021 and 2020. The Company elects the fair value option for recording residential mortgage loans held for sale, as well as for certain commercial real estate loans at December 31, 2020, in accordance with U.S. GAAP. The Company had $2.1 million of nonaccrual mortgage loans held for sale that were recorded using the fair value option election at September 30, 2021, compared to $681,000 at December 31, 2020. There were no LHFI that were recorded using the fair value option election at September 30, 2021, and there were no nonaccrual LHFI that were recorded using the fair value option election at December 31, 2020. Loans classified as TDRs, excluding the impact of forbearances granted due to COVID-19, were as follows: (Dollars in thousands) September 30, 2021 December 31, 2020 TDRs Nonaccrual TDRs $ 4,559 $ 5,671 Performing TDRs 2,845 3,314 Total $ 7,404 $ 8,985 The tables below summarize loans classified as TDR's by loan and concession type during the three and nine months ended September 30, 2021 and 2020, respectively. Three Months Ended September 30, 2021 (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 1 $ 31 $ 27 $ — $ — $ 27 Commercial and industrial 1 100 100 — — 100 Total 2 $ 131 $ 127 $ — $ — $ 127 Three Months Ended September 30, 2020 (Dollars in thousands) Number of Loans Restructured Pre-Modification Recorded Balance Term Concessions Interest Rate Concessions Combination of Term and Rate Concessions Total Modifications Loans secured by real estate: Commercial real estate 2 $ 1,696 $ 1,695 $ — $ — $ 1,695 Residential real estate 2 253 69 182 — 251 Total real estate 4 1,949 1,764 182 — 1,946 Commercial and industrial 2 80 80 — — 80 Consumer 1 2 — — 2 2 Total 7 $ 2,031 $ 1,844 $ 182 $ 2 $ 2,028 Nine Months Ended September 30, 2021 (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 1 $ 31 $ 27 $ — $ — $ 27 Commercial and industrial 1 100 100 — — 100 Total 2 $ 131 $ 127 $ — $ — $ 127 Nine Months Ended September 30, 2020 (Dollars in thousands) Number of Loans Restructured Pre-Modification Recorded Balance Term Concessions Interest Rate Concessions Combination of Term and Rate Concessions Total Modifications Loans secured by real estate: Commercial real estate 2 $ 1,696 $ 1,695 $ — $ — $ 1,695 Residential real estate 2 253 69 182 — 251 Total real estate 4 1,949 1,764 182 — 1,946 Commercial and industrial 4 208 198 — — 198 Consumer 1 2 — — 2 2 Total 9 $ 2,159 $ 1,962 $ 182 $ 2 $ 2,146

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2021
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 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 September 30, 2021, and December 31, 2020, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value. There were no changes in the valuation techniques during 2021 or 2020. September 30, 2021 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 366,634 $ 42,099 $ 408,733 Corporate bonds — 78,827 — 78,827 U.S. treasury securities 93,047 — — 93,047 U.S. government agency securities — 5,454 — 5,454 Commercial mortgage-backed securities — 39,438 — 39,438 Residential mortgage-backed securities — 555,351 — 555,351 Commercial collateralized mortgage obligations — 10,437 — 10,437 Residential collateralized mortgage obligations — 210,431 — 210,431 Asset-backed securities — 84,825 — 84,825 Securities available for sale 93,047 1,351,397 42,099 1,486,543 Securities carried at fair value through income — — 10,876 10,876 Loans held for sale — 63,001 — 63,001 Mortgage servicing rights — — 16,000 16,000 Other assets - derivatives — 14,881 — 14,881 Total recurring fair value measurements - assets $ 93,047 $ 1,429,279 $ 68,975 $ 1,591,301 Other liabilities - derivatives $ — $ (14,679) $ — $ (14,679) Total recurring fair value measurements - liabilities $ — $ (14,679) $ — $ (14,679) December 31, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 398,120 $ 44,065 $ 442,185 Corporate bonds — 65,938 — 65,938 U.S. government agency securities — 849 — 849 Commercial mortgage-backed securities — 11,080 — 11,080 Residential mortgage-backed securities — 214,951 — 214,951 Residential collateralized mortgage obligations — 195,343 — 195,343 Asset-backed securities — 74,328 — 74,328 Securities available for sale — 960,609 44,065 1,004,674 Securities carried at fair value through income — — 11,554 11,554 Loans held for sale — 136,026 — 136,026 Loans at fair value — — 17,011 17,011 Mortgage servicing rights — — 13,660 13,660 Other assets - derivatives — 23,694 — 23,694 Total recurring fair value measurements - assets $ — $ 1,120,329 $ 86,290 $ 1,206,619 Other liabilities - derivatives $ — $ (23,020) $ — $ (23,020) Total recurring fair value measurements - liabilities $ — $ (23,020) $ — $ (23,020) The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the nine months ended September 30, 2021 and 2020, 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, 2021 $ 17,011 $ 13,660 $ 44,065 $ 11,554 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — (1,942) — — Other noninterest income (251) — — (413) Loss recognized in AOCI — — (746) — Purchases, issuances, sales and settlements: Originations — 4,282 — — Purchases — — 1,000 — Sales — — — — Settlements (16,760) — (2,220) (265) Balance at September 30, 2021 $ — $ 16,000 $ 42,099 $ 10,876 Balance at January 1, 2020 $ 17,670 $ 20,697 $ 38,173 $ 11,513 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — (10,680) — — Other noninterest income 30 — — 550 Gain recognized in AOCI — — 1,352 — Purchases, issuances, sales and settlements: Originations — 4,305 — — Purchases — — 1,598 — Sales — — (140) — Settlements (416) — (1,884) (250) Balance at September 30, 2020 $ 17,284 $ 14,322 $ 39,099 $ 11,813 ____________________________ (1) Total mortgage banking revenue includes changes in fair value due to market changes and run-off. The Company obtains fair value measurements for loans at fair value, securities available for sale and securities at fair value through income from an independent pricing service, therefore, quantitative unobservable inputs are unknown. 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 1 securities, the Company obtains the fair value measurements for those identical assets from an independent pricing service. For Level 2 securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, market consensus prepayment speeds, credit information and the security's terms and conditions, among other things. In order to ensure the fair values are consistent with Accounting Standards Codification ("ASC") 820, Fair Value Measurements and Disclosures , the Company periodically checks the fair value by comparing them to other pricing sources, such as Bloomberg LP. The third-party pricing service is subject to an annual review of internal controls in accordance with the Statement on Standards for Attestation Engagements 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 using a discounted cash flow valuation technique. The significant assumptions used to value MSRs were as follows: September 30, 2021 December 31, 2020 Range Weighted Average (1) Range Weighted Average (1) Prepayment speeds 9.22% - 37.69% 16.24 % 11.82% - 37.95% 22.08 % Discount rates 9.00 - 10.50 9.45 7.83 - 9.09 8.27 __________________________ (1) The weighted average was calculated with reference to the principal balance of the underlying mortgages. In recent years, there have been significant market-driven fluctuations in the assumptions listed above. Loans with higher average coupon rates have a greater likelihood of prepayment during the current interest rate environment, while loans with lower average coupon rates have a lower likelihood of prepayment. The increase in rates since the year ended December 31, 2020, has caused a decrease in our weighted average prepayment speed and an increase in our discount rate assumptions used in the MSR valuation. These fluctuations can be rapid and may continue to be significant. Therefore, estimating these assumptions within ranges that market participants would use in determining the fair value of MSRs requires significant management judgment. Derivatives Fair values for interest rate swap agreements are based upon the amounts that would be required to settle the contracts. Fair values for derivative loan commitments and forward loan sale commitments are based on fair values of the underlying mortgage loans and the probability of such commitments being exercised. Significant management judgment and estimation is required in determining these fair value measurements. Fair Values of Assets Recorded on a Recurring Basis for which the Fair Value Option has been Elected Certain assets are measured at fair value on a recurring basis due to the Company's election to adopt fair value accounting treatment for those assets. This election allows for a more effective offset of the changes in fair values of the assets and the derivative instruments used to economically hedge them without the burden of complying with the requirements for hedge accounting under ASC 815, Derivatives and Hedging. For assets for which the fair value has been elected, the earned current contractual interest payment is recognized in interest income, loan origination costs and fees on fair value option loans are recognized in earnings as incurred and not deferred. At September 30, 2021, and December 31, 2020, 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: September 30, 2021 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 63,001 $ 62,024 $ 977 Securities carried at fair value through income 10,876 10,353 523 Total $ 73,877 $ 72,377 $ 1,500 ____________________________ (1) $2.1 million of loans held for sale were designated as nonaccrual or 90 days or more past due at September 30, 2021. Of this balance, $1.6 million was guaranteed by U.S. Government agencies. December 31, 2020 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 136,026 $ 129,955 $ 6,071 Commercial real estate LHFI (2) 17,011 16,760 251 Securities carried at fair value through income 11,554 10,618 936 Total $ 164,591 $ 157,333 $ 7,258 ____________________________ (1) $681,000 of loans held for sale were designated as nonaccrual or 90 days or more past due at December 31, 2020. Of this balance, $473,000 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, 2020. Changes in the fair value of assets for which the Company elected the fair value option are classified in the consolidated statement of income line items reflected in the following table: (Dollars in thousands) Three Months Ended September 30, Nine Months Ended September 30, Changes in fair value included in noninterest income: 2021 2020 2021 2020 Mortgage banking revenue $ (791) $ (221) $ (5,094) $ 3,401 Other income: Loans at fair value held for investment (126) (103) (251) 30 Securities carried at fair value through income (97) (164) (413) 550 Total impact on other income (223) (267) (664) 580 Total fair value option impact on noninterest income (1) $ (1,014) $ (488) $ (5,758) $ 3,981 ____________________________ (1) The fair value option impact on noninterest income is offset by the derivative gain/loss recognized in noninterest income. Please see Note 6 - Mortgage Banking for more detail. The following methodologies were used to measure the fair value of financial assets valued on a recurring basis for which the fair value option was elected: Securities at Fair Value through Income Securities carried at fair value through income are valued using a discounted cash flow with a credit spread applied to each instrument based on the credit worthiness of each issuer. Credit spreads ranged from 83 to 227 basis points at both September 30, 2021, and December 31, 2020. The Company believes the fair value approximates an exit price. Loans Held for Sale Fair values for loans held for sale are established using anticipated sale prices for loans allocated to a sale commitment, and those unallocated to a commitment are valued based on the interest rate and term for similar loans allocated. The Company believes the fair value approximates an exit price. LHFI For LHFI 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. There are no LHFI for which the fair value option has been elected at September 30, 2021. Credit spreads ranged from 290 to 413 basis points at December 31, 2020. 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 $45.1 million and $62.6 million, at September 30, 2021, and December 31, 2020, respectively, and are shown on the face of the consolidated balance sheets. 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. Government National Mortgage Association Repurchase Asset The Company recorded $47.0 million and $55.5 million, respectively, at September 30, 2021, and December 31, 2020, for Government National Mortgage Association ("GNMA") repurchase assets included in mortgage loans held for sale on the consolidated balance sheets. The assets are valued at the lower of cost or market and, where market is lower than cost, valued using anticipated sale prices for loans allocated to a sale commitment, and those unallocated to a commitment are valued based on the interest rate and term for similar loans allocated. The Company believes the fair value approximates an exit price. Please see Note 6 - Mortgage Banking for more information on the GNMA repurchase asset. Collateral Dependent Loans with Credit Losses Loans for which it is probable that the Company will not collect all principal and interest due according to contractual terms are measured to determine if any credit loss exists. Allowable methods for determining the amount of credit loss includes estimating the fair value using the fair value of the collateral for collateral-dependent loans. If the loan is identified as collateral-dependent, the fair value method of measuring the amount of credit loss is utilized. This method requires obtaining a current independent appraisal of the collateral and applying a discount factor to the value. Loans that have experienced a credit loss that are collateral-dependent are classified within Level 3 of the fair value hierarchy when the credit loss is determined using the fair value method. The fair value of loans that have experienced a credit loss with specific allocated losses was approximately $3.8 million and $12.3 million at September 30, 2021, and December 31, 2020, 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 credit 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 $4.0 million and $1.6 million at September 30, 2021, and December 31, 2020, respectively. At September 30, 2021, the Company had $5.9 million residential mortgage loans in the process of foreclosure. Fair Values of Financial Instruments Not Recorded at Fair Value Loans The estimated fair value approximates carrying value for variable-rate loans that reprice frequently and with no significant change in credit risk. The fair value of fixed-rate loans and variable-rate loans which reprice on an infrequent basis is estimated by discounting future cash flows using exit level pricing, which combines the current interest rates at which similar loans with similar terms would be made to borrowers of similar credit quality and an estimated additional rate to reflect a liquidity premium. An overall valuation adjustment is made for specific credit risks as well as general portfolio credit risk. Deposits The estimated fair value approximates carrying value for demand deposits. The fair value of fixed-rate deposit liabilities with defined maturities is estimated by discounting future cash flows using the interest rates currently available for funding from the FHLB. The estimated fair value of deposits does not take into account the value of our long-term relationships with depositors, commonly known as core deposit intangibles, which are separate intangible assets, and not considered financial instruments. Nonetheless, the Company would likely realize a core deposit premium if the deposit portfolio were sold in the principal market for such deposits. Borrowed Funds The estimated fair value approximates carrying value for short-term borrowings. The fair value of long-term fixed-rate and fixed-to-floating-rate borrowings is estimated using quoted market prices, if available, or by discounting future cash flows using current interest rates for similar financial instruments. The estimated fair value approximates carrying value for variable-rate junior subordinated debentures that reprice quarterly. The carrying value and estimated fair values of financial instruments not recorded at fair value are as follows: (Dollars in thousands) September 30, 2021 December 31, 2020 Financial assets: Level 1 inputs: Carrying Estimated Carrying Estimated Cash and cash equivalents $ 351,965 $ 351,965 $ 377,214 $ 377,214 Level 2 inputs: Non-marketable equity securities held in other financial institutions 45,144 45,144 62,586 62,586 Accrued interest and loan fees receivable 23,806 23,806 27,146 27,146 Level 3 inputs: Securities held to maturity 37,702 40,415 38,128 41,205 LHFI, net (1) 5,117,341 5,092,269 5,621,092 5,802,744 Financial liabilities: Level 2 inputs: Deposits 6,158,768 6,160,571 5,751,315 5,756,312 FHLB advances and other borrowings 309,152 304,501 984,608 991,943 Subordinated debentures 157,357 156,569 157,181 156,395 Accrued interest payable 2,994 2,994 3,556 3,556 ____________________________ (1) Does not include loans for which the fair value option had been elected at December 31, 2020, as these loans are carried at fair value on a recurring basis. There are no loans for which the fair value option had been elected at September 30, 2021.

Mortgage Banking

Mortgage Banking	9 Months Ended
	Sep. 30, 2021
Mortgage Banking [Abstract]
Mortgage Banking	Note 6 - Mortgage Banking The following table presents the Company's revenue from mortgage banking operations: (Dollars in thousands) Three Months Ended September 30, Nine Months Ended September 30, Mortgage banking revenue 2021 2020 2021 2020 Origination $ 349 $ 492 $ 1,101 $ 1,391 Gain on sale of loans held for sale 1,984 5,613 10,014 8,578 Originations of MSRs 1,089 1,780 4,282 4,305 Servicing 1,501 1,526 4,537 4,642 Total gross mortgage revenue 4,923 9,411 19,934 18,916 MSR valuation adjustments, net (1,170) (2,693) (1,942) (10,680) Mortgage HFS and pipeline fair value adjustment (1,046) 540 (6,201) 7,337 MSR hedge impact 21 2,265 (1,721) 7,436 Mortgage banking revenue $ 2,728 $ 9,523 $ 10,070 $ 23,009 Management uses 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 September 30, Nine Months Ended September 30, (Dollars in thousands) 2021 2020 2021 2020 Fair Value at Beginning of Period $ 16,081 $ 15,235 $ 13,660 $ 20,697 Originations of MSRs 1,089 1,780 4,282 4,305 Valuation adjustments, net (1,170) (2,693) (1,942) (10,680) Fair Value at End of Period $ 16,000 $ 14,322 $ 16,000 $ 14,322 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 violated representations or warranties made by the Company and/or the borrower at the time of the sale, which the Company refers to as mortgage loan servicing put back 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. Put back claims may be made until the loan is paid in full. When a put back claim is received, the Company evaluates the claim and takes appropriate actions based on the nature of the claim. The Company is required by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation to provide a response to put back claims within 60 days of the date of receipt. At September 30, 2021, and December 31, 2020, the reserve for mortgage loan servicing put back expenses totaled $365,000 and $311,000, respectively. There is inherent uncertainty in reasonably estimating the requirement for reserves against future mortgage loan servicing put back expenses. Future put back expenses depend on many subjective factors, including the review procedures of the purchasers and the potential refinance activity on loans sold with servicing released and the subsequent consequences under the representations and warranties.

Borrowings

Borrowings	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Borrowings	Note 7 - Borrowings Borrowed funds are summarized as follows: (Dollars in thousands) September 30, 2021 December 31, 2020 Overnight repurchase agreements with depositors $ 5,136 $ 8,408 Short-term FHLB advances — 650,000 GNMA repurchase liability 46,955 55,485 Long-term FHLB advances 257,061 270,715 Total FHLB advances and other borrowings $ 309,152 $ 984,608 Subordinated debentures, net $ 157,357 $ 157,181 Security for all indebtedness and outstanding commitments to the FHLB consists of a blanket floating lien on all of the Company's first mortgage loans, commercial real estate and other real estate loans, as well as the Company's investment in capital stock of the FHLB and deposit accounts at the FHLB. The net amounts available under the blanket floating lien at September 30, 2021 and December 31, 2020, were $837.7 million and $456.9 million, respectively.

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2021
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 consolidated statement of income on a recurring basis. Cash Flow Hedges of Interest Rate Risk The Company is a party to an interest rate swap agreement under which the Company receives interest at a variable rate and pays at a fixed rate. The derivative instrument represented by this swap agreement is designated as a cash flow hedge of the Company's forecasted variable cash flows under a variable-rate term borrowing agreement. During the term of the swap agreement, the effective portion of changes in the fair value of the derivative instrument are recorded in accumulated other comprehensive income and subsequently reclassified into earnings in the periods that the hedged forecasted variable-rate interest payments affected earnings. There was no ineffective portion of the change in fair value of the derivative recognized directly in earnings. The entire swap fair value will be reclassified into earnings before the expiration date of the swap agreement. 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. From time to time, the Company shares in credit risk on interest rate swap arrangements, by entering into risk participation agreements with syndication partners. These are accounted for at fair value and disclosed as risk participation derivatives. Mortgage banking derivatives The Company enters into certain derivative agreements as part of its mortgage banking and related risk management activities. These agreements include interest rate lock commitments on prospective residential mortgage loans and forward commitments to sell these loans to investors on a mandatory delivery basis. The Company also economically hedges the value of MSRs by entering into a series of commitments to purchase mortgage-backed securities in the future. Fair Values of Derivative Instruments on the Balance Sheet The following tables disclose the fair value of derivative instruments in the Company's balance sheets at September 30, 2021, and December 31, 2020, as well as the effect of these derivative instruments on the Company's consolidated statements of income for the nine months ended September 30, 2021 and 2020: Notional Amounts (1) Fair Values (Dollars in thousands) Derivatives designated as cash flow hedging instruments: September 30, 2021 December 31, 2020 September 30, 2021 December 31, 2020 Interest rate swaps included in other liabilities $ 21,000 $ 21,000 $ (254) $ (706) Derivatives not designated as hedging instruments: Interest rate swaps included in other assets $ 348,353 $ 326,542 $ 13,160 $ 20,207 Interest rate swaps included in other liabilities 363,738 347,096 (13,893) (21,321) Risk participation derivatives included in accrued expenses and other liabilities on the consolidated balance sheets 63,374 63,374 (7) (18) Forward commitments to purchase mortgage-backed securities included in other liabilities 85,000 107,000 (507) (317) Forward commitments to sell residential mortgage loans included in other assets (liabilities) 76,620 107,200 264 (658) Interest rate-lock commitments on residential mortgage loans included in other assets 54,957 79,554 1,457 3,487 $ 992,042 $ 1,030,766 $ 474 $ 1,380 ____________________________ (1) Notional or contractual amounts, which represent the extent of involvement in the derivatives market, are used to determine the contractual cash flows required in accordance with the terms of the agreement. These amounts are typically not exchanged, significantly exceed amounts subject to credit or market risk and are not reflected in the consolidated balance sheets. The weighted-average rates paid and received for interest rate swaps at September 30, 2021, were as follows: Weighted-Average Interest Rate Interest rate swaps: Paid Received Cash flow hedges 4.81 % 2.85 % Non-hedging interest rate swaps - financial institution counterparties 4.16 2.54 Non-hedging interest rate swaps - customer counterparties 2.55 4.16 Gains and losses recognized on derivative instruments not designated as hedging instruments are as follows: (Dollars in thousands) Three Months Ended September 30, Nine Months Ended September 30, Derivatives not designated as hedging instruments: 2021 2020 2021 2020 Amount of gain (loss) recognized in mortgage banking revenue (1) $ (984) $ 1,286 $ (2,471) $ 5,491 Amount of (loss) gain recognized in other non-interest income 75 157 409 (472) ____________________________ (1) Gains and losses on these instruments are largely offset by market fluctuations in mortgage servicing rights. See Note 6 - 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 consolidated balance sheets, and any impact of netting these amounts would not be significant. At September 30, 2021, and December 31, 2020, the Company had cash collateral on deposit with swap counterparties totaling $17.5 million and $22.2 million, respectively. These amounts are included in interest-bearing deposits in banks in the 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	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Stock and Incentive Compensation Plans	Note 9 - Stock and Incentive Compensation Plans On April 28, 2021, an employee stock purchase plan ("ESPP") was approved by the Company's stockholders and qualified as an ESPP under IRS guidelines. The ESPP provides for the purchase of up to an aggregate one million shares of the Company's common stock by employees pursuant to the terms of the ESPP. Under the ESPP, employees of the Company who elect to participate have the right to purchase a limited number of shares of the Company's common stock at a 15% discount from the lower of the market value of the common stock at the beginning or the end of each one year offering period, beginning on June 1st. The ESPP benefit is treated as compensation to the employee and the compensation expense will be recognized over the service period based on the fair value of the rights on the grant date, adjusted for forfeitures and certain modifications. There were no shares of common stock issued pursuant to the ESPP during the quarter or year-to-date period ended September 30, 2021. 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 were still outstanding at September 30, 2021. 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 incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock awards ("RSA"), restricted stock units ("RSU"), dividend equivalent rights, performance unit awards or any combination thereof. At September 30, 2021, the maximum number of shares of the Company's common stock available for issuance under the 2012 Plan was 838,072 shares. Share-based compensation cost charged to income for the three and nine months ended September 30, 2021 and 2020, is presented below. There was no stock option expense for any of the periods shown. Three Months Ended September 30, Nine Months Ended September 30, (Dollars in thousands) 2021 2020 2021 2020 RSA & RSU $ 477 $ 550 $ 1,535 $ 1,659 ESPP 82 — 109 — Total stock compensation expense $ 559 $ 550 $ 1,644 $ 1,659 Related tax benefits recognized in net income 117 116 345 348 Restricted Stock Grants The Company's restricted stock grants are time-vested awards and are granted to the Company's Board of Directors, executives and senior management team. The service period in which time-vested awards are earned ranges from one The following table summarizes the Company's time-vested award activity: Nine Months Ended September 30, 2021 2020 Shares Weighted Average Grant-Date Fair Value Shares Weighted Average Grant-Date Fair Value Nonvested RSA shares, January 1, 103,359 $ 31.51 149,449 $ 35.15 Granted RSA 13,460 42.26 30,638 20.14 Vested RSA (55,827) 29.90 (52,289) 33.39 Forfeited RSA (946) 24.69 (4,129) 37.14 Nonvested RSA shares, September 30, 60,046 35.52 123,669 32.11 Nonvested RSU, January 1, — $ — — $ — Granted RSU 70,573 40.40 — — Nonvested RSU, September 30, 70,573 40.40 — — At September 30, 2021, there was $1.5 million and $2.7 million of total unrecognized compensation cost related to nonvested RSA shares and RSU shares under the 2012 Plan, respectively. Those costs are expected to be recognized over a weighted-average period of 1.6 years and 2.9 years for RSA shares and RSU shares, respectively. 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, and all of the outstanding options are fully vested. The Company recognizes compensation cost for stock option grants over the required service period based upon the grant date fair value, which is established using a Black-Scholes valuation model. The Black-Scholes valuation model uses assumptions of risk-free interest rate, expected term of stock options, expected stock price volatility and expected dividends. Forfeitures are recognized as they occur. The table below summarizes the status of the Company's stock options and changes during the nine months ended September 30, 2021 and 2020. (Dollars in thousands, except per share amounts) Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Nine Months Ended September 30, 2021 Outstanding at January 1, 2021 224,000 $ 10.86 4.92 $ 3,789 Exercised (14,800) 9.89 — — Outstanding and exercisable at September 30, 2021 209,200 10.93 4.55 6,574 Nine Months Ended September 30, 2020 Outstanding at January 1, 2020 254,000 $ 10.55 5.81 $ 6,932 Exercised (30,000) 8.25 — — Outstanding and exercisable at September 30, 2020 224,000 10.86 5.17 2,353

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Accumulated Other Comprehensive Income	Note 10 - Accumulated Other Comprehensive Income Accumulated other comprehensive income ("AOCI") includes the after-tax change in unrealized gains and losses on AFS securities and cash flow hedging activities. (Dollars in thousands) Unrealized Gain (Loss) on AFS Securities Unrealized (Loss) Gain on Cash Flow Hedges Accumulated Other Comprehensive Income Balance at January 1, 2021 $ 26,206 $ (557) $ 25,649 Net change (14,135) 358 (13,777) Balance at September 30, 2021 $ 12,071 $ (199) $ 11,872 Balance at January 1, 2020 $ 6,412 $ (79) $ 6,333 Net change 16,240 (575) 15,665 Balance at September 30, 2020 $ 22,652 $ (654) $ 21,998

Capital and Regulatory Matters

Capital and Regulatory Matters	9 Months Ended
	Sep. 30, 2021
Banking Regulation [Abstract]
Capital and Regulatory Matters	Note 11 - 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 ("Basel III Capital Rules"), which includes a 2.5% capital conservation buffer effective for the Company as of 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 and stock repurchases and to pay discretionary bonuses to executive officers. Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios (set forth in the table below) of total, common equity Tier 1 capital, Tier 1 capital, Tier 1 capital, and total 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 September 30, 2021, and December 31, 2020, that the Company and the Bank met all capital adequacy requirements to which they are subject, including the capital buffer requirement. At September 30, 2021, and December 31, 2020, 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, common equity Tier 1 capital, Tier 1 risk-based and Tier 1 leverage ratios as set forth in the table below. A final rule adopted by the federal banking agencies in February 2019 provides banking organizations with the option to phase in, over a three-year period, the adverse day-one regulatory capital effects of the adoption of CECL. In addition, on March 27, 2020, the federal banking agencies issued an interim final rule that gives banking organizations that implement CECL before the end of 2020 the option to delay for two years CECL’s adverse effects on regulatory capital. Origin elected to adopt CECL in the first quarter of 2020 and exercised the option to delay the estimated impact of the adoption of CECL on the Company's regulatory capital for two years (from January 2020 through December 31, 2021), which resulted in an 18 basis point benefit to the common equity Tier 1 capital to risk-weighted assets capital ratio at September 30, 2021. The two-year delay will be followed by the three-year transition period of CECL's initial impact on our regulatory capital (from January 1, 2022 through December 31, 2024). The actual capital amounts and ratios of the Company and Bank at September 30, 2021, and December 31, 2020, are presented in the following table: (Dollars in thousands) September 30, 2021 Actual Minimum Capital Required - Basel III To be Well Capitalized Under Prompt Corrective Action Provisions Common Equity Tier 1 Capital to Risk-Weighted Assets Amount Ratio Amount Ratio Amount Ratio Origin Bancorp, Inc. $ 673,003 11.23 % $ 419,630 7.00 % N/A N/A Origin Bank 701,939 11.79 416,719 7.00 $ 386,953 6.50 % Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 682,403 11.38 509,551 8.50 N/A N/A Origin Bank 701,939 11.79 506,016 8.50 476,250 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 893,412 14.90 629,446 10.50 N/A N/A Origin Bank 834,307 14.01 625,078 10.50 595,313 10.00 Leverage Ratio Origin Bancorp, Inc. 682,403 9.18 297,379 4.00 N/A N/A Origin Bank 701,939 9.48 296,152 4.00 370,190 5.00 December 31, 2020 Common Equity Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 604,306 9.95 425,012 7.00 N/A N/A Origin Bank 637,863 10.53 424,010 7.00 393,724 6.50 Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 613,682 10.11 516,107 8.50 N/A N/A Origin Bank 637,863 10.53 514,870 8.50 484,583 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 837,058 13.79 637,539 10.50 N/A N/A Origin Bank 782,503 12.92 636,019 10.50 605,732 10.00 Leverage Ratio Origin Bancorp, Inc. 613,682 8.62 284,771 4.00 N/A N/A Origin Bank 637,863 8.99 283,842 4.00 354,802 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, which was $87.6 million at September 30, 2021. Stock Repurchases During the first quarter of 2021, the Company repurchased a total of 37,568 shares of its common stock pursuant to its stock buyback program at an average price per share of $33.42, for an aggregate purchase price of $1.3 million. There have been no common stock repurchases since the first quarter of the 2021 year. Prior to 2021, the Company had cumulatively repurchased an aggregate 330,868 common stock shares for a total purchase price of $10.8 million under the stock buyback program. As of September 30, 2021, the Company's board of directors has approved approximately $28.0 million remaining to be purchased under the program.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 12 - 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) September 30, 2021 December 31, 2020 Commitments to extend credit $ 1,567,440 $ 1,341,501 Standby letters of credit 54,721 42,911 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 September 30, 2021, and December 31, 2020, these credit card guarantees totaled $225,000 and $200,000, 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 September 30, 2021, the Company held 45 unfunded letters of credit from the FHLB totaling $613.0 million with expiration dates ranging from October 21, 2021, to March 22, 2023. At December 31, 2020, the Company held 35 unfunded letters of credit from the FHLB totaling $527.4 million with expiration dates ranging from January 20, 2021, to November 4, 2022. 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 $2.3 million at both September 30, 2021, and December 31, 2020, respectively, and is included in accrued expenses and other liabilities in the accompanying 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	9 Months Ended
	Sep. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	Note 13 - Subsequent Events On October 29, 2021, the Company entered into a second amendment (the "Amendment") to that certain existing loan agreement (the "Loan Agreement") initially executed on October 5, 2018, with NexBank (the "Lender"). Pursuant to the Amendment, the loan shall not exceed an aggregate principal of $100 million, consisting of the $50 million existing loan amount and any one or more potential incremental revolving loan commitments that the Lender may make in its sole discretion, up to an aggregate principal of $50 million, upon the request of the Company. The loan is extended to the Company for working capital and general corporate purposes. The Lender has no obligation to agree to extend any incremental revolving loan or to increase the loan amount. The principal amounts borrowed under the Amendment will bear interest at a variable rate equal to the applicable Term SOFR for the then-current SOFR Interest Period plus 3.35%. The line of credit available to the Company under the Loan Agreement expires on October 28, 2022, or such date of the acceleration of the obligation pursuant to the Amendment, at which time all amounts borrowed, together with applicable interest, fees and other amounts owed by the Company shall be due and payable. The Company may extend the maturity date to a date that is three hundred and sixty-four (364) days after the then-effective maturity date, no more than two times upon (i) delivery of a written request therefor to Lender at least thirty (30) days, but no more than (60) days, prior to the maturity date then in effect; and (ii) receipt by the Lender of a certificate of the Company dated the date of such request. On October 27, 2021, the Company executed an agreement with Lincoln Agency, LLC, the Lincoln Agency of La, Inc., and certain holders of equity interests in Lincoln Inc. (collectively the "Holders"), to acquire the remaining 62% interest in Lincoln LLC. The Company currently owns a 38% equity interest in Lincoln LLC, and as such, the acquisition would bring the Company's total interest in Lincoln Agency to 100% ownership. The aggregate consideration payable for the purchase will consist of: (i) cash consideration in the amount of $5.3 million and (ii) a number of shares of the Company's common stock equal to (1) $5.3 million, divided by (2) the fair market value of the Company's common stock, rounded to the nearest whole share. Additionally, the Holders will be entitled to receive additional cash consideration at certain future dates the amount of which will be determined by achieving target product line revenue amounts earned as of certain future dates. The acquisition transaction is expected to close on or about December 31, 2021, and is not expected to be material to the financial statements.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation . The 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, doing business as Thomas & Farr Agency, and Reeves, Coon and Funderburg. All significant intercompany balances and transactions have been eliminated in consolidation. The Company's accounting and financial reporting policies conform, in all material respects, to generally accepted accounting principles in the United States ("U.S. GAAP") and to general practices within the financial services industry. The Company has evaluated subsequent events for potential recognition and/or disclosure through the date these consolidated financial statements were issued. The 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, 2020, but in the opinion of management, reflect all adjustments necessary for a fair presentation of the Company's financial position and results of operations for the periods presented. These 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 consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2020, included in the Company's annual report on Form 10-K ("2020 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 period 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.
Use of Estimates	Use of Estimates . The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions based on available information that affect the amounts reported in the financial statements and disclosures provided, including the accompanying notes, and actual results could differ. Material estimates that are particularly susceptible to change include the allowance for credit losses for loans and available for sale securities; 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.
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. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. ASU 2019-12 simplifies the accounting for income taxes by eliminating some exceptions to the general approach in Accounting Standards Codification (ASC) 740, Income Taxes. It also clarifies certain aspects of the existing guidance to promote more consistent application, among other things. The amendments were implemented effective January 1, 2021. Implementation of this ASU did not materially impact the consolidated financial statements or disclosures. Effect of Newly Issued But Not Yet Effective Accounting Standards ASU No. 2021-06, Presentation of Financial Statements (Topic 205), Financial Services —Depository and Lending (Topic 942), and Financial Services — Investment Companies (Topic 946) —Amendments to SEC Paragraphs Pursuant to SEC Final Rule Releases No. 33-10786, Amendments to Financial Disclosures about Acquired and Disposed Businesses, and No. 33-10835, Update of Statistical Disclosures for Bank and Savings and Loan Registrants amends the Accounting Standards Codification in order to agree the Codification to the new SEC releases 33-10786 and 33-10835 (the "Releases"). The Releases clearly define whether an acquired or disposed business subsidiary is significant; update, expand and eliminate certain disclosures; eliminate overlap with certain SEC and GAAP rules; and add a new subpart of Regulation S-K. The ASU is effective upon issuance, however, the SEC release on which the ASU is based is effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years, while certain disclosures related to Guide 3 are effective January 1, 2023. Implementation of this ASU is not expected to materially impact financial statement disclosures.
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 Held For Sale	The Company elects the fair value option for recording residential mortgage loans held for sale, as well as for certain commercial real estate loans at December 31, 2020, 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 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. 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 1 securities, the Company obtains the fair value measurements for those identical assets from an independent pricing service. For Level 2 securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, market consensus prepayment speeds, credit information and the security's terms and conditions, among other things. In order to ensure the fair values are consistent with Accounting Standards Codification ("ASC") 820, Fair Value Measurements and Disclosures , the Company periodically checks the fair value by comparing them to other pricing sources, such as Bloomberg LP. The third-party pricing service is subject to an annual review of internal controls in accordance with the Statement on Standards for Attestation Engagements 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. Derivatives Fair values for interest rate swap agreements are based upon the amounts that would be required to settle the contracts. Fair values for derivative loan commitments and forward loan sale commitments are based on fair values of the underlying mortgage loans and the probability of such commitments being exercised. Significant management judgment and estimation is required in determining these fair value measurements. Fair Values of Assets Recorded on a Recurring Basis for which the Fair Value Option has been Elected Certain assets are measured at fair value on a recurring basis due to the Company's election to adopt fair value accounting treatment for those assets. This election allows for a more effective offset of the changes in fair values of the assets and the derivative instruments used to economically hedge them without the burden of complying with the requirements for hedge accounting under ASC 815, Derivatives and Hedging. The following methodologies were used to measure the fair value of financial assets valued on a recurring basis for which the fair value option was elected: Securities at Fair Value through Income Securities carried at fair value through income are valued using a discounted cash flow with a credit spread applied to each instrument based on the credit worthiness of each issuer. Credit spreads ranged from 83 to 227 basis points at both September 30, 2021, and December 31, 2020. The Company believes the fair value approximates an exit price. Loans Held for Sale Fair values for loans held for sale are established using anticipated sale prices for loans allocated to a sale commitment, and those unallocated to a commitment are valued based on the interest rate and term for similar loans allocated. The Company believes the fair value approximates an exit price. LHFI For LHFI 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. There are no LHFI for which the fair value option has been elected at September 30, 2021. Credit spreads ranged from 290 to 413 basis points at December 31, 2020. 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 $45.1 million and $62.6 million, at September 30, 2021, and December 31, 2020, respectively, and are shown on the face of the consolidated balance sheets. 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. Government National Mortgage Association Repurchase Asset The Company recorded $47.0 million and $55.5 million, respectively, at September 30, 2021, and December 31, 2020, for Government National Mortgage Association ("GNMA") repurchase assets included in mortgage loans held for sale on the consolidated balance sheets. The assets are valued at the lower of cost or market and, where market is lower than cost, valued using anticipated sale prices for loans allocated to a sale commitment, and those unallocated to a commitment are valued based on the interest rate and term for similar loans allocated. The Company believes the fair value approximates an exit price. Please see Note 6 - Mortgage Banking for more information on the GNMA repurchase asset. Collateral Dependent Loans with Credit Losses Loans for which it is probable that the Company will not collect all principal and interest due according to contractual terms are measured to determine if any credit loss exists. Allowable methods for determining the amount of credit loss includes estimating the fair value using the fair value of the collateral for collateral-dependent loans. If the loan is identified as collateral-dependent, the fair value method of measuring the amount of credit loss is utilized. This method requires obtaining a current independent appraisal of the collateral and applying a discount factor to the value. Loans that have experienced a credit loss that are collateral-dependent are classified within Level 3 of the fair value hierarchy when the credit loss is determined using the fair value method. The fair value of loans that have experienced a credit loss with specific allocated losses was approximately $3.8 million and $12.3 million at September 30, 2021, and December 31, 2020, respectively. Non-Financial Assets
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 consolidated statement of income on a recurring basis. Cash Flow Hedges of Interest Rate Risk The Company is a party to an interest rate swap agreement under which the Company receives interest at a variable rate and pays at a fixed rate. The derivative instrument represented by this swap agreement is designated as a cash flow hedge of the Company's forecasted variable cash flows under a variable-rate term borrowing agreement. During the term of the swap agreement, the effective portion of changes in the fair value of the derivative instrument are recorded in accumulated other comprehensive income and subsequently reclassified into earnings in the periods that the hedged forecasted variable-rate interest payments affected earnings. There was no ineffective portion of the change in fair value of the derivative recognized directly in earnings. The entire swap fair value will be reclassified into earnings before the expiration date of the swap agreement. 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. From time to time, the Company shares in credit risk on interest rate swap arrangements, by entering into risk participation agreements with syndication partners. These are accounted for at fair value and disclosed as risk participation derivatives. Mortgage banking derivatives The Company enters into certain derivative agreements as part of its mortgage banking and related risk management activities. These agreements include interest rate lock commitments on prospective residential mortgage loans and forward commitments to sell these loans to investors on a mandatory delivery basis. The Company also economically hedges the value of MSRs by entering into a series of commitments to purchase mortgage-backed securities in the future.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	Information regarding the Company's basic and diluted earnings per common share is presented in the following table: (Dollars in thousands, except per share amounts) Three Months Ended September 30, Nine Months Ended September 30, Numerator: 2021 2020 2021 2020 Net income $ 26,978 $ 13,095 $ 80,224 $ 18,805 Denominator: Weighted average common shares outstanding 23,429,705 23,374,496 23,413,794 23,358,672 Dilutive effect of stock-based awards 183,305 126,100 192,803 140,166 Weighted average diluted common shares outstanding 23,613,010 23,500,596 23,606,597 23,498,838 Basic earnings per common share $ 1.15 $ 0.56 $ 3.43 $ 0.81 Diluted earnings per common share 1.14 0.56 3.40 0.80

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2021
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 the allowance for credit losses and 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) September 30, 2021 Amortized Gross Gross Fair Allowance for Credit Losses Net Carrying Amount Available for sale: State and municipal securities $ 397,635 $ 13,551 $ (2,453) $ 408,733 $ — $ 408,733 Corporate bonds 76,260 2,708 (141) 78,827 — 78,827 U.S. government and agency securities 99,101 15 (615) 98,501 — 98,501 Commercial mortgage-backed securities 39,931 222 (715) 39,438 — 39,438 Residential mortgage-backed securities 553,202 5,090 (2,941) 555,351 — 555,351 Commercial collateralized mortgage obligations 10,596 — (159) 10,437 — 10,437 Residential collateralized mortgage obligations 211,293 825 (1,687) 210,431 — 210,431 Asset-backed securities 83,330 1,495 — 84,825 — 84,825 Total $ 1,471,348 $ 23,906 $ (8,711) $ 1,486,543 $ — $ 1,486,543 Held to maturity: State and municipal securities $ 37,762 $ 2,653 $ — $ 40,415 $ (60) $ 37,702 Securities carried at fair value through income: State and municipal securities (1) $ 10,353 $ — $ — $ 10,876 $ — $ 10,876 December 31, 2020 Available for sale: State and municipal securities $ 420,559 $ 21,884 $ (258) $ 442,185 $ — $ 442,185 Corporate bonds 64,313 1,762 (137) 65,938 — 65,938 U.S. government and agency securities 851 3 (5) 849 — 849 Commercial mortgage-backed securities 10,814 266 — 11,080 — 11,080 Residential mortgage-backed securities 207,742 7,441 (232) 214,951 — 214,951 Residential collateralized mortgage obligations 193,865 1,739 (261) 195,343 — 195,343 Asset-backed securities 73,451 877 — 74,328 — 74,328 Total $ 971,595 $ 33,972 $ (893) $ 1,004,674 $ — $ 1,004,674 Held to maturity: State and municipal securities $ 38,194 $ 3,011 $ — $ 41,205 $ (66) $ 38,128 Securities carried at fair value through income: State and municipal securities (1) $ 10,618 $ — $ — $ 11,554 $ — $ 11,554 ____________________________ (1) Securities carried at fair value through income have no unrealized gains or losses at the balance sheet date as all changes in value have been recognized in the consolidated statements of income. See Note 5 - Fair Value of Financial Instruments for more information.
Schedule of Securities with Unrealized Loss	Securities with unrealized losses at September 30, 2021, and December 31, 2020, 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. Less than 12 Months 12 Months or More Total (Dollars in thousands) September 30, 2021 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: State and municipal securities $ 116,139 $ (2,108) $ 9,983 $ (345) $ 126,122 $ (2,453) Corporate bonds 11,907 (93) 2,952 (48) 14,859 (141) U.S. government and agency securities 52,655 (613) 464 (2) 53,119 (615) Commercial mortgage-backed securities 36,978 (715) — — 36,978 (715) Residential mortgage-backed securities 372,308 (2,902) 1,815 (39) 374,123 (2,941) Commercial collateralized mortgage obligations 10,437 (159) — — 10,437 (159) Residential collateralized mortgage obligations 125,886 (1,358) 20,323 (329) 146,209 (1,687) Total $ 726,310 $ (7,948) $ 35,537 $ (763) $ 761,847 $ (8,711) Held to maturity: State and municipal securities $ — $ — $ — $ — $ — $ — December 31, 2020 Available for sale: State and municipal securities $ 21,979 $ (258) $ — $ — $ 21,979 $ (258) Corporate bonds 30,513 (137) — — 30,513 (137) U.S. government and agency securities — — 568 (5) 568 (5) Residential mortgage-backed securities 23,178 (232) — — 23,178 (232) Residential collateralized mortgage obligations 43,911 (261) — — 43,911 (261) Total $ 119,581 $ (888) $ 568 $ (5) $ 120,149 $ (893) Held to maturity: State and municipal securities $ — $ — $ — $ — $ — $ —
Schedule of Allowance for Credit Losses for Held -to -Maturity Securities	The following table presents the activity in the allowance for credit losses for held-to-maturity debt securities. (Dollars in thousands) Municipal Securities Allowance for credit losses: Balance at January 1, 2021 $ 66 Credit loss recovery (6) Balance at September 30, 2021 $ 60 Balance at January 1, 2020 $ — Impact of adopting ASC 326 96 Credit loss expense 48 Balance at September 30, 2020 $ 144
Proceeds from Sales of Securities Available for Sale and Gross Gains	Proceeds from sales and calls, and related gross gains and losses of securities available for sale, are shown below. Nine Months Ended September 30, (Dollars in thousands) 2021 2020 Proceeds from sales/calls $ 43,053 $ 35,208 Gross realized gains 1,705 434 Gross realized losses (32) (79)
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 September 30, 2021, grouped by contractual maturity. Mortgage-backed securities, collateralized mortgage obligations and asset-backed securities, which do not have contractual payments due at a single maturity date, are shown separately. Actual maturities for mortgage-backed securities, collateralized mortgage obligations and asset-backed securities will differ from contractual maturities as a result of prepayments made on the underlying loans. (Dollars in thousands) Held to Maturity Available for Sale September 30, 2021 Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 12,574 $ 12,579 $ 3,553 $ 3,573 Due after one year through five years — — 116,012 120,144 Due after five years through ten years 25,188 27,836 155,246 158,315 Due after ten years — — 298,185 304,029 Commercial mortgage-backed securities — — 39,931 39,438 Residential mortgage-backed securities — — 553,202 555,351 Commercial collateralized mortgage obligations — — 10,596 10,437 Residential collateralized mortgage obligations — — 211,293 210,431 Asset-backed securities — — 83,330 84,825 Total $ 37,762 $ 40,415 $ 1,471,348 $ 1,486,543
Securities Pledged as Collateral	The following table presents carrying amounts of securities pledged as collateral for deposits and repurchase agreements for the period ends presented. (Dollars in thousands) September 30, 2021 December 31, 2020 Carrying value of securities pledged to secure public deposits $ 244,534 $ 289,537 Carrying value of securities pledged to repurchase agreements 11,669 10,982

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Schedule of Loans	Loans consist of the following: (Dollars in thousands) September 30, 2021 December 31, 2020 Loans held for sale $ 109,956 $ 191,512 LHFI: Loans secured by real estate: Commercial real estate $ 1,590,519 $ 1,370,928 Construction/land/land development 518,920 531,860 Residential real estate 913,411 885,120 Total real estate 3,022,850 2,787,908 Commercial and industrial (1) 1,435,203 1,817,862 Mortgage warehouse lines of credit 713,339 1,084,001 Consumer 15,896 17,991 Total loans accounted for at amortized cost 5,187,288 5,707,762 Loans accounted for at fair value — 17,011 Total LHFI (2) 5,187,288 5,724,773 Less: Allowance for loan losses 69,947 86,670 LHFI, net $ 5,117,341 $ 5,638,103 ____________________________ (1) Includes $217.0 million and $546.5 million of PPP loans at September 30, 2021 and December 31, 2020, respectively. (2) Includes net deferred loan fees of $11.7 million and $13.7 million at September 30, 2021, and December 31, 2020, respectively.
Recorded Investment in Loans by Credit Quality Indicator	The following table reflects recorded investments in loans by credit quality indicator and origination year at September 30, 2021, excluding loans held for sale and loans accounted for at fair value. The Company had an immaterial amount of revolving loans converted to term loans at September 30, 2021. Term Loans Amortized Cost Basis by Origination Year 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: Pass $ 362,257 $ 398,932 $ 295,133 $ 253,886 $ 123,844 $ 95,542 $ 21,561 $ 1,551,155 Special mention 4,321 — — 8,474 17,324 — — 30,119 Classified 2,067 950 915 2,527 302 2,321 163 9,245 Total commercial real estate loans $ 368,645 $ 399,882 $ 296,048 $ 264,887 $ 141,470 $ 97,863 $ 21,724 $ 1,590,519 Current period gross charge-offs $ — $ — $ — $ 80 $ 24 $ 26 $ — $ 130 Current period gross recoveries — — — — — 10 — 10 Current period net charge-offs (recoveries) $ — $ — $ — $ 80 $ 24 $ 16 $ — $ 120 Construction/land/land development: Pass $ 191,832 $ 118,126 $ 102,047 $ 53,742 $ 5,669 $ 756 $ 24,832 $ 497,004 Special mention — — 6,817 436 1,776 — — 9,029 Classified 690 304 187 187 38 54 11,427 12,887 Total construction/land/land development loans $ 192,522 $ 118,430 $ 109,051 $ 54,365 $ 7,483 $ 810 $ 36,259 $ 518,920 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ — $ — $ — Residential real estate: Pass $ 233,927 $ 304,579 $ 108,650 $ 74,732 $ 47,271 $ 74,351 $ 54,086 $ 897,596 Special mention — 177 147 — 482 285 — 1,091 Classified 476 170 2,298 2,964 1,949 6,602 265 14,724 Total residential real estate loans $ 234,403 $ 304,926 $ 111,095 $ 77,696 $ 49,702 $ 81,238 $ 54,351 $ 913,411 Current period gross charge-offs $ — $ — $ 58 $ — $ — $ — $ — $ 58 Current period gross recoveries — 21 — — 25 35 — 81 Current period net charge-offs (recoveries) $ — $ (21) $ 58 $ — $ (25) $ (35) $ — $ (23) Term Loans Amortized Cost Basis by Origination Year 2021 2020 2019 2018 2017 Prior Revolving Loans Amortized Cost Basis Total (Dollars in thousands) Commercial and industrial: Pass $ 430,671 $ 226,901 $ 117,343 $ 75,605 $ 16,970 $ 26,823 $ 491,920 $ 1,386,233 Special mention 775 2,180 1,743 2,131 — — 3,501 10,330 Classified 14,177 397 2,179 4,025 4,324 3,761 9,777 38,640 Total commercial and industrial loans $ 445,623 $ 229,478 $ 121,265 $ 81,761 $ 21,294 $ 30,584 $ 505,198 $ 1,435,203 Current period gross charge-offs $ 9 $ 1,172 $ 54 $ — $ 467 $ 5,449 $ 1,679 $ 8,830 Current period gross recoveries — 6 42 3 87 185 29 352 Current period net charge-offs (recoveries) $ 9 $ 1,166 $ 12 $ (3) $ 380 $ 5,264 $ 1,650 $ 8,478 Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 713,339 $ 713,339 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 5,084 $ 2,806 $ 1,735 $ 673 $ 76 $ 80 $ 5,401 $ 15,855 Classified 8 21 3 — — 2 7 41 Total consumer loans $ 5,092 $ 2,827 $ 1,738 $ 673 $ 76 $ 82 $ 5,408 $ 15,896 Current period gross charge-offs $ — $ — $ 25 $ 2 $ — $ 9 $ 18 $ 54 Current period gross recoveries — — 9 7 1 15 4 36 Current period net charge-offs (recoveries) $ — $ — $ 16 $ (5) $ (1) $ (6) $ 14 $ 18 The following table reflects recorded investments in loans by credit quality indicator and origination year at December 31, 2020, excluding loans held for sale and loans accounted for at fair value. The Company had an immaterial amount of revolving loans converted to term loans at December 31, 2020. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: (1) Pass $ 393,317 $ 290,394 $ 312,051 $ 154,445 $ 46,132 $ 106,994 $ 18,419 $ 1,321,752 Special mention 824 113 2,410 20,691 — 1,656 2,145 27,839 Classified 2,806 1,678 6,704 6,586 1,476 1,093 994 21,337 Total commercial real estate loans $ 396,947 $ 292,185 $ 321,165 $ 181,722 $ 47,608 $ 109,743 $ 21,558 $ 1,370,928 Current period gross charge-offs $ — $ — $ — $ 3,622 $ 199 $ 1,103 $ — $ 4,924 Current period gross recoveries — — — — — 19 — 19 Current period net charge-offs $ — $ — $ — $ 3,622 $ 199 $ 1,084 $ — $ 4,905 (1) Excludes $17.0 million of commercial real estate loans at fair value at December 31, 2020, which are not included in the loss estimation methodology due to the fair value option election. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Amortized Cost Basis Total Construction/land/land development: Pass $ 189,311 $ 150,281 $ 138,000 $ 12,907 $ 1,812 $ 1,157 $ 18,892 $ 512,360 Special mention 323 10,421 135 1,003 — — — 11,882 Classified — 1,811 726 1,507 143 168 3,263 7,618 Total construction/land/land development loans $ 189,634 $ 162,513 $ 138,861 $ 15,417 $ 1,955 $ 1,325 $ 22,155 $ 531,860 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — 1 — 1 Current period net charge-offs (recoveries) $ — $ — $ — $ — $ — $ (1) $ — $ (1) Residential real estate: Pass $ 367,652 $ 143,368 $ 103,450 $ 102,272 $ 41,522 $ 50,094 $ 53,854 $ 862,212 Special mention 188 — 29 1,875 9,287 803 — 12,182 Classified 1,857 2,403 2,982 511 1,344 1,533 96 10,726 Total residential real estate loans $ 369,697 $ 145,771 $ 106,461 $ 104,658 $ 52,153 $ 52,430 $ 53,950 $ 885,120 Current period gross charge-offs $ 94 $ 271 $ — $ 283 $ — $ 44 $ — $ 692 Current period gross recoveries — — — — — 202 — 202 Current period net charge-offs (recoveries) $ 94 $ 271 $ — $ 283 $ — $ (158) $ — $ 490 Commercial and industrial: Pass $ 851,780 $ 153,722 $ 110,092 $ 29,413 $ 9,927 $ 26,964 $ 511,220 $ 1,693,118 Special mention 4,860 2,059 26,438 423 — 14,843 8,077 56,700 Classified 5,436 12,250 5,859 5,450 5,950 6,707 26,392 68,044 Total commercial and industrial loans $ 862,076 $ 168,031 $ 142,389 $ 35,286 $ 15,877 $ 48,514 $ 545,689 $ 1,817,862 Current period gross charge-offs $ 189 $ 204 $ 87 $ 121 $ 3,228 $ 469 $ 2,404 $ 6,702 Current period gross recoveries — 42 20 81 185 112 582 1,022 Current period net charge-offs $ 189 $ 162 $ 67 $ 40 $ 3,043 $ 357 $ 1,822 $ 5,680 Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 1,084,001 $ 1,084,001 Current period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Current period gross recoveries — — — — — — — — Current period net charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 6,702 $ 3,318 $ 1,578 $ 203 $ 116 $ 83 $ 5,935 $ 17,935 Classified 28 8 — — 6 1 13 56 Total consumer loans $ 6,730 $ 3,326 $ 1,578 $ 203 $ 122 $ 84 $ 5,948 $ 17,991 Current period gross charge-offs $ — $ 39 $ 23 $ 8 $ — $ 4 $ 2 $ 76 Current period gross recoveries — — 1 7 5 7 4 24 Current period net charge-offs (recoveries) $ — $ 39 $ 22 $ 1 $ (5) $ (3) $ (2) $ 52
Loan Portfolio Aging Analysis	The following tables present the Company's loan portfolio aging analysis at the dates indicated: September 30, 2021 (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 $ — $ — $ 237 $ 237 $ 1,590,282 $ 1,590,519 $ — Construction/land/land development 167 52 — 219 518,701 518,920 — Residential real estate 340 85 7,917 8,342 905,069 913,411 — Total real estate 507 137 8,154 8,798 3,014,052 3,022,850 — Commercial and industrial 850 2,498 13,648 16,996 1,418,207 1,435,203 — Mortgage warehouse lines of credit — — — — 713,339 713,339 — Consumer 137 23 — 160 15,736 15,896 — Total LHFI $ 1,494 $ 2,658 $ 21,802 $ 25,954 $ 5,161,334 $ 5,187,288 $ — December 31, 2020 (Dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Loans Past Due 90 Days or More Total Past Due Current Loans Total Loans Receivable Accruing Loans 90 or More Days Past Due Loans secured by real estate: Commercial real estate (1) $ 1,072 $ — $ 3,172 $ 4,244 $ 1,383,695 $ 1,387,939 $ — Construction/land/land development 369 1 2,328 2,698 529,162 531,860 — Residential real estate 3,774 134 364 4,272 880,848 885,120 — Total real estate 5,215 135 5,864 11,214 2,793,705 2,804,919 — Commercial and industrial 703 1,097 12,625 14,425 1,803,437 1,817,862 — Mortgage warehouse lines of credit — — — — 1,084,001 1,084,001 — Consumer 113 9 2 124 17,867 17,991 — Total LHFI $ 6,031 $ 1,241 $ 18,491 $ 25,763 $ 5,699,010 $ 5,724,773 $ — ____________________________ (1) Includes $17.0 million of commercial real estate loans at fair value.
Allowance for Loan Losses by Portfolio Segment	The following tables detail activity in the allowance for loan credit losses by portfolio segment. Accrued interest of $16.3 million and $19.3 million was not included in the book value for the purposes of calculating the allowance at September 30, 2021, and September 30, 2020, respectively. 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 September 30, 2021 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (1) Ending Balance Loans secured by real estate: Commercial real estate $ 16,282 $ — $ 4 $ (367) $ 15,919 Construction/land/land development 5,602 — — (593) 5,009 Residential real estate 9,059 — 64 (3,004) 6,119 Commercial and industrial 45,049 3,030 58 (216) 41,861 Mortgage warehouse lines of credit 560 — — (90) 470 Consumer 552 5 18 4 569 Total $ 77,104 $ 3,035 $ 144 $ (4,266) $ 69,947 ____________________________ (1) The $3.9 million net benefit for credit losses on the consolidated statements of income includes a $4.3 million net loan loss benefit, a $356,000 provision for off-balance sheet commitments and a $11,000 provision benefit for held to maturity securities credit losses for the three months ended September 30, 2021. Three Months Ended September 30, 2020 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (1) Ending Balance Loans secured by real estate: Commercial real estate $ 10,046 $ 200 $ — $ 4,503 $ 14,349 Construction/land/land development 6,860 — 1 1,589 8,450 Residential real estate 6,911 549 11 1,853 8,226 Commercial and industrial 45,281 1,517 480 4,519 48,763 Mortgage warehouse lines of credit 602 — — 302 904 Consumer 768 27 6 204 951 Total $ 70,468 $ 2,293 $ 498 $ 12,970 $ 81,643 ____________________________ (1) The $13.6 million provision for credit losses on the consolidated statements of income includes a $13.0 million net loan loss provision, a $663,000 provision for off-balance sheet commitments and no provision for held to maturity securities credit losses for the three months ended September 30, 2020. Nine Months Ended September 30, 2021 (Dollars in thousands) Beginning Balance Charge-offs Recoveries Provision (1) Ending Balance Loans secured by real estate: Commercial real estate $ 15,430 $ 130 $ 10 $ 609 $ 15,919 Construction/land/land development 8,191 — — (3,182) 5,009 Residential real estate 9,418 58 81 (3,322) 6,119 Commercial and industrial 51,857 8,830 352 (1,518) 41,861 Mortgage warehouse lines of credit 856 — — (386) 470 Consumer 918 54 36 (331) 569 Total $ 86,670 $ 9,072 $ 479 $ (8,130) $ 69,947 (1) The $8.1 million net benefit for credit losses on the consolidated statements of income includes a $8.1 million net loan loss benefit, a $19,000 provision for off-balance sheet commitments and a $6,000 provision benefit for held to maturity securities credit losses for the nine months ended September 30, 2021. Nine Months Ended September 30, 2020 (Dollars in thousands) Beginning Balance Impact of Adopting ASC 326 Charge-offs Recoveries Provision (1) Ending Balance Loans secured by real estate: Commercial real estate $ 10,013 $ (5,052) $ 3,868 $ 6 $ 13,250 $ 14,349 Construction/land/land development 3,711 1,141 — 1 3,597 8,450 Residential real estate 6,332 (2,526) 598 180 4,838 8,226 Commercial and industrial 16,960 7,296 5,770 736 29,541 48,763 Mortgage warehouse lines of credit 262 29 — — 613 904 Consumer 242 360 69 13 405 951 Total $ 37,520 $ 1,248 $ 10,305 $ 936 $ 52,244 $ 81,643 (1) The $53.6 million provision for credit losses on the consolidated statements of income includes a $52.2 million net loan loss provision, a $1.3 million provision for off-balance sheet commitments and a $48,000 provision for held to maturity securities credit losses for the nine months ended September 30, 2020. The following tables show the recorded investment in loans by loss estimation methodology, excluding loans for which the fair value option was elected at December 31, 2020. There were no LHFI for which the fair value option was elected at September 30, 2021. September 30, 2021 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate $ 1,588,069 $ 237 $ 2,213 $ 1,590,519 Construction/land/land development 518,326 287 307 518,920 Residential real estate 904,482 8,335 594 913,411 Commercial and industrial 1,420,616 8,552 6,035 1,435,203 Mortgage warehouse lines of credit 713,339 — — 713,339 Consumer 15,895 1 — 15,896 Total $ 5,160,727 $ 17,412 $ 9,149 $ 5,187,288 December 31, 2020 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate (1) $ 1,365,284 $ 3,173 $ 2,471 $ 1,370,928 Construction/land/land development 528,894 2,621 345 531,860 Residential real estate 879,015 2,009 4,096 885,120 Commercial and industrial 1,804,049 3,152 10,661 1,817,862 Mortgage warehouse lines of credit 1,084,001 — — 1,084,001 Consumer 17,991 — — 17,991 Total $ 5,679,234 $ 10,955 $ 17,573 $ 5,707,762 ____________________________ (1) Excludes $17.0 million of commercial real estate loans at fair value, which are not included in the loss estimation methodology due to the fair value option election. The following tables show the allowance for loan credit losses by loss estimation methodology at September 30, 2021, and December 31, 2020. September 30, 2021 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate $ 15,907 $ — $ 12 $ 15,919 Construction/land/land development 5,001 — 8 5,009 Residential real estate 6,103 16 — 6,119 Commercial and industrial 28,681 7,700 5,480 41,861 Mortgage warehouse lines of credit 470 — — 470 Consumer 568 1 — 569 Total $ 56,730 $ 7,717 $ 5,500 $ 69,947 December 31, 2020 Collectively Evaluated Individually Evaluated (Dollars in thousands) Probability of Default Fair Value of Collateral Discounted Cash Flow Total Loans secured by real estate: Commercial real estate $ 14,896 $ 525 $ 9 $ 15,430 Construction/land/land development 8,062 128 1 8,191 Residential real estate 8,983 — 435 9,418 Commercial and industrial 44,714 1,707 5,436 51,857 Mortgage warehouse lines of credit 856 — — 856 Consumer 918 — — 918 Total $ 78,429 $ 2,360 $ 5,881 $ 86,670
Non-performing (Nonaccrual) Loans Held for Investment	Nonaccrual LHFI were as follows: Nonaccrual With No Nonaccrual (Dollars in thousands) Loans secured by real estate: September 30, 2021 December 31, 2020 September 30, 2021 December 31, 2020 Commercial real estate $ 641 $ 1,053 $ 672 $ 3,704 Construction/land/land development 342 1,319 592 2,962 Residential real estate 7,883 2,436 9,377 6,530 Total real estate 8,866 4,808 10,641 13,196 Commercial and industrial 62 82 13,873 12,897 Consumer — — 41 56 Total nonaccrual loans $ 8,928 $ 4,890 $ 24,555 $ 26,149
Loans Classified as Troubled Debt Restructurings (TDRs)	Loans classified as TDRs, excluding the impact of forbearances granted due to COVID-19, were as follows: (Dollars in thousands) September 30, 2021 December 31, 2020 TDRs Nonaccrual TDRs $ 4,559 $ 5,671 Performing TDRs 2,845 3,314 Total $ 7,404 $ 8,985 The tables below summarize loans classified as TDR's by loan and concession type during the three and nine months ended September 30, 2021 and 2020, respectively. Three Months Ended September 30, 2021 (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 1 $ 31 $ 27 $ — $ — $ 27 Commercial and industrial 1 100 100 — — 100 Total 2 $ 131 $ 127 $ — $ — $ 127 Three Months Ended September 30, 2020 (Dollars in thousands) Number of Loans Restructured Pre-Modification Recorded Balance Term Concessions Interest Rate Concessions Combination of Term and Rate Concessions Total Modifications Loans secured by real estate: Commercial real estate 2 $ 1,696 $ 1,695 $ — $ — $ 1,695 Residential real estate 2 253 69 182 — 251 Total real estate 4 1,949 1,764 182 — 1,946 Commercial and industrial 2 80 80 — — 80 Consumer 1 2 — — 2 2 Total 7 $ 2,031 $ 1,844 $ 182 $ 2 $ 2,028 Nine Months Ended September 30, 2021 (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 1 $ 31 $ 27 $ — $ — $ 27 Commercial and industrial 1 100 100 — — 100 Total 2 $ 131 $ 127 $ — $ — $ 127 Nine Months Ended September 30, 2020 (Dollars in thousands) Number of Loans Restructured Pre-Modification Recorded Balance Term Concessions Interest Rate Concessions Combination of Term and Rate Concessions Total Modifications Loans secured by real estate: Commercial real estate 2 $ 1,696 $ 1,695 $ — $ — $ 1,695 Residential real estate 2 253 69 182 — 251 Total real estate 4 1,949 1,764 182 — 1,946 Commercial and industrial 4 208 198 — — 198 Consumer 1 2 — — 2 2 Total 9 $ 2,159 $ 1,962 $ 182 $ 2 $ 2,146

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2021
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 September 30, 2021, and December 31, 2020, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value. There were no changes in the valuation techniques during 2021 or 2020. September 30, 2021 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 366,634 $ 42,099 $ 408,733 Corporate bonds — 78,827 — 78,827 U.S. treasury securities 93,047 — — 93,047 U.S. government agency securities — 5,454 — 5,454 Commercial mortgage-backed securities — 39,438 — 39,438 Residential mortgage-backed securities — 555,351 — 555,351 Commercial collateralized mortgage obligations — 10,437 — 10,437 Residential collateralized mortgage obligations — 210,431 — 210,431 Asset-backed securities — 84,825 — 84,825 Securities available for sale 93,047 1,351,397 42,099 1,486,543 Securities carried at fair value through income — — 10,876 10,876 Loans held for sale — 63,001 — 63,001 Mortgage servicing rights — — 16,000 16,000 Other assets - derivatives — 14,881 — 14,881 Total recurring fair value measurements - assets $ 93,047 $ 1,429,279 $ 68,975 $ 1,591,301 Other liabilities - derivatives $ — $ (14,679) $ — $ (14,679) Total recurring fair value measurements - liabilities $ — $ (14,679) $ — $ (14,679) December 31, 2020 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 398,120 $ 44,065 $ 442,185 Corporate bonds — 65,938 — 65,938 U.S. government agency securities — 849 — 849 Commercial mortgage-backed securities — 11,080 — 11,080 Residential mortgage-backed securities — 214,951 — 214,951 Residential collateralized mortgage obligations — 195,343 — 195,343 Asset-backed securities — 74,328 — 74,328 Securities available for sale — 960,609 44,065 1,004,674 Securities carried at fair value through income — — 11,554 11,554 Loans held for sale — 136,026 — 136,026 Loans at fair value — — 17,011 17,011 Mortgage servicing rights — — 13,660 13,660 Other assets - derivatives — 23,694 — 23,694 Total recurring fair value measurements - assets $ — $ 1,120,329 $ 86,290 $ 1,206,619 Other liabilities - derivatives $ — $ (23,020) $ — $ (23,020) Total recurring fair value measurements - liabilities $ — $ (23,020) $ — $ (23,020)
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 nine months ended September 30, 2021 and 2020, 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, 2021 $ 17,011 $ 13,660 $ 44,065 $ 11,554 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — (1,942) — — Other noninterest income (251) — — (413) Loss recognized in AOCI — — (746) — Purchases, issuances, sales and settlements: Originations — 4,282 — — Purchases — — 1,000 — Sales — — — — Settlements (16,760) — (2,220) (265) Balance at September 30, 2021 $ — $ 16,000 $ 42,099 $ 10,876 Balance at January 1, 2020 $ 17,670 $ 20,697 $ 38,173 $ 11,513 Gain (loss) recognized in earnings: Mortgage banking revenue (1) — (10,680) — — Other noninterest income 30 — — 550 Gain recognized in AOCI — — 1,352 — Purchases, issuances, sales and settlements: Originations — 4,305 — — Purchases — — 1,598 — Sales — — (140) — Settlements (416) — (1,884) (250) Balance at September 30, 2020 $ 17,284 $ 14,322 $ 39,099 $ 11,813 ____________________________ (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: September 30, 2021 December 31, 2020 Range Weighted Average (1) Range Weighted Average (1) Prepayment speeds 9.22% - 37.69% 16.24 % 11.82% - 37.95% 22.08 % Discount rates 9.00 - 10.50 9.45 7.83 - 9.09 8.27 __________________________ (1) The weighted average was calculated with reference to the principal balance of the underlying mortgages.
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	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: September 30, 2021 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 63,001 $ 62,024 $ 977 Securities carried at fair value through income 10,876 10,353 523 Total $ 73,877 $ 72,377 $ 1,500 ____________________________ (1) $2.1 million of loans held for sale were designated as nonaccrual or 90 days or more past due at September 30, 2021. Of this balance, $1.6 million was guaranteed by U.S. Government agencies. December 31, 2020 (Dollars in thousands) Aggregate Fair Value Aggregate Unpaid Principal Balance Difference Loans held for sale (1) $ 136,026 $ 129,955 $ 6,071 Commercial real estate LHFI (2) 17,011 16,760 251 Securities carried at fair value through income 11,554 10,618 936 Total $ 164,591 $ 157,333 $ 7,258 ____________________________ (1) $681,000 of loans held for sale were designated as nonaccrual or 90 days or more past due at December 31, 2020. Of this balance, $473,000 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, 2020. Changes in the fair value of assets for which the Company elected the fair value option are classified in the consolidated statement of income line items reflected in the following table: (Dollars in thousands) Three Months Ended September 30, Nine Months Ended September 30, Changes in fair value included in noninterest income: 2021 2020 2021 2020 Mortgage banking revenue $ (791) $ (221) $ (5,094) $ 3,401 Other income: Loans at fair value held for investment (126) (103) (251) 30 Securities carried at fair value through income (97) (164) (413) 550 Total impact on other income (223) (267) (664) 580 Total fair value option impact on noninterest income (1) $ (1,014) $ (488) $ (5,758) $ 3,981 ____________________________ (1) The fair value option impact on noninterest income is offset by the derivative gain/loss recognized in noninterest income. Please see Note 6 - Mortgage Banking for more detail.
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) September 30, 2021 December 31, 2020 Financial assets: Level 1 inputs: Carrying Estimated Carrying Estimated Cash and cash equivalents $ 351,965 $ 351,965 $ 377,214 $ 377,214 Level 2 inputs: Non-marketable equity securities held in other financial institutions 45,144 45,144 62,586 62,586 Accrued interest and loan fees receivable 23,806 23,806 27,146 27,146 Level 3 inputs: Securities held to maturity 37,702 40,415 38,128 41,205 LHFI, net (1) 5,117,341 5,092,269 5,621,092 5,802,744 Financial liabilities: Level 2 inputs: Deposits 6,158,768 6,160,571 5,751,315 5,756,312 FHLB advances and other borrowings 309,152 304,501 984,608 991,943 Subordinated debentures 157,357 156,569 157,181 156,395 Accrued interest payable 2,994 2,994 3,556 3,556 ____________________________ (1) Does not include loans for which the fair value option had been elected at December 31, 2020, as these loans are carried at fair value on a recurring basis. There are no loans for which the fair value option had been elected at September 30, 2021.

Mortgage Banking (Tables)

Mortgage Banking (Tables)	9 Months Ended
	Sep. 30, 2021
Mortgage Banking [Abstract]
Mortgage Banking Operations	The following table presents the Company's revenue from mortgage banking operations: (Dollars in thousands) Three Months Ended September 30, Nine Months Ended September 30, Mortgage banking revenue 2021 2020 2021 2020 Origination $ 349 $ 492 $ 1,101 $ 1,391 Gain on sale of loans held for sale 1,984 5,613 10,014 8,578 Originations of MSRs 1,089 1,780 4,282 4,305 Servicing 1,501 1,526 4,537 4,642 Total gross mortgage revenue 4,923 9,411 19,934 18,916 MSR valuation adjustments, net (1,170) (2,693) (1,942) (10,680) Mortgage HFS and pipeline fair value adjustment (1,046) 540 (6,201) 7,337 MSR hedge impact 21 2,265 (1,721) 7,436 Mortgage banking revenue $ 2,728 $ 9,523 $ 10,070 $ 23,009
Schedule of Activity in Mortgages Servicing Rights (MSRs)	Activity in MSRs was as follows: Three Months Ended September 30, Nine Months Ended September 30, (Dollars in thousands) 2021 2020 2021 2020 Fair Value at Beginning of Period $ 16,081 $ 15,235 $ 13,660 $ 20,697 Originations of MSRs 1,089 1,780 4,282 4,305 Valuation adjustments, net (1,170) (2,693) (1,942) (10,680) Fair Value at End of Period $ 16,000 $ 14,322 $ 16,000 $ 14,322

Borrowings (Tables)

Borrowings (Tables)	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Summary of Borrowed Funds	Borrowed funds are summarized as follows: (Dollars in thousands) September 30, 2021 December 31, 2020 Overnight repurchase agreements with depositors $ 5,136 $ 8,408 Short-term FHLB advances — 650,000 GNMA repurchase liability 46,955 55,485 Long-term FHLB advances 257,061 270,715 Total FHLB advances and other borrowings $ 309,152 $ 984,608 Subordinated debentures, net $ 157,357 $ 157,181

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2021
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 balance sheets at September 30, 2021, and December 31, 2020, as well as the effect of these derivative instruments on the Company's consolidated statements of income for the nine months ended September 30, 2021 and 2020: Notional Amounts (1) Fair Values (Dollars in thousands) Derivatives designated as cash flow hedging instruments: September 30, 2021 December 31, 2020 September 30, 2021 December 31, 2020 Interest rate swaps included in other liabilities $ 21,000 $ 21,000 $ (254) $ (706) Derivatives not designated as hedging instruments: Interest rate swaps included in other assets $ 348,353 $ 326,542 $ 13,160 $ 20,207 Interest rate swaps included in other liabilities 363,738 347,096 (13,893) (21,321) Risk participation derivatives included in accrued expenses and other liabilities on the consolidated balance sheets 63,374 63,374 (7) (18) Forward commitments to purchase mortgage-backed securities included in other liabilities 85,000 107,000 (507) (317) Forward commitments to sell residential mortgage loans included in other assets (liabilities) 76,620 107,200 264 (658) Interest rate-lock commitments on residential mortgage loans included in other assets 54,957 79,554 1,457 3,487 $ 992,042 $ 1,030,766 $ 474 $ 1,380 ____________________________ (1) Notional or contractual amounts, which represent the extent of involvement in the derivatives market, are used to determine the contractual cash flows required in accordance with the terms of the agreement. These amounts are typically not exchanged, significantly exceed amounts subject to credit or market risk and are not reflected in the consolidated balance sheets.
Weighted-average Rates Paid and Received for Interest Rate Swaps	The weighted-average rates paid and received for interest rate swaps at September 30, 2021, were as follows: Weighted-Average Interest Rate Interest rate swaps: Paid Received Cash flow hedges 4.81 % 2.85 % Non-hedging interest rate swaps - financial institution counterparties 4.16 2.54 Non-hedging interest rate swaps - customer counterparties 2.55 4.16
Gains and Losses Recognized on Derivative Instruments Not Designated as Hedging Instruments	Gains and losses recognized on derivative instruments not designated as hedging instruments are as follows: (Dollars in thousands) Three Months Ended September 30, Nine Months Ended September 30, Derivatives not designated as hedging instruments: 2021 2020 2021 2020 Amount of gain (loss) recognized in mortgage banking revenue (1) $ (984) $ 1,286 $ (2,471) $ 5,491 Amount of (loss) gain recognized in other non-interest income 75 157 409 (472) ____________________________ (1) Gains and losses on these instruments are largely offset by market fluctuations in mortgage servicing rights. See Note 6 - Mortgage Banking for more information on components of mortgage banking revenue.

Stock and Incentive Compensat_2

Stock and Incentive Compensation Plans (Tables)	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Share-Based Compensation Cost Charged to Income	Share-based compensation cost charged to income for the three and nine months ended September 30, 2021 and 2020, is presented below. There was no stock option expense for any of the periods shown. Three Months Ended September 30, Nine Months Ended September 30, (Dollars in thousands) 2021 2020 2021 2020 RSA & RSU $ 477 $ 550 $ 1,535 $ 1,659 ESPP 82 — 109 — Total stock compensation expense $ 559 $ 550 $ 1,644 $ 1,659 Related tax benefits recognized in net income 117 116 345 348
Time-Vested Award Activity	The following table summarizes the Company's time-vested award activity: Nine Months Ended September 30, 2021 2020 Shares Weighted Average Grant-Date Fair Value Shares Weighted Average Grant-Date Fair Value Nonvested RSA shares, January 1, 103,359 $ 31.51 149,449 $ 35.15 Granted RSA 13,460 42.26 30,638 20.14 Vested RSA (55,827) 29.90 (52,289) 33.39 Forfeited RSA (946) 24.69 (4,129) 37.14 Nonvested RSA shares, September 30, 60,046 35.52 123,669 32.11 Nonvested RSU, January 1, — $ — — $ — Granted RSU 70,573 40.40 — — Nonvested RSU, September 30, 70,573 40.40 — —
Stock Option Activity	The table below summarizes the status of the Company's stock options and changes during the nine months ended September 30, 2021 and 2020. (Dollars in thousands, except per share amounts) Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Nine Months Ended September 30, 2021 Outstanding at January 1, 2021 224,000 $ 10.86 4.92 $ 3,789 Exercised (14,800) 9.89 — — Outstanding and exercisable at September 30, 2021 209,200 10.93 4.55 6,574 Nine Months Ended September 30, 2020 Outstanding at January 1, 2020 254,000 $ 10.55 5.81 $ 6,932 Exercised (30,000) 8.25 — — Outstanding and exercisable at September 30, 2020 224,000 10.86 5.17 2,353

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income	Accumulated other comprehensive income ("AOCI") includes the after-tax change in unrealized gains and losses on AFS securities and cash flow hedging activities. (Dollars in thousands) Unrealized Gain (Loss) on AFS Securities Unrealized (Loss) Gain on Cash Flow Hedges Accumulated Other Comprehensive Income Balance at January 1, 2021 $ 26,206 $ (557) $ 25,649 Net change (14,135) 358 (13,777) Balance at September 30, 2021 $ 12,071 $ (199) $ 11,872 Balance at January 1, 2020 $ 6,412 $ (79) $ 6,333 Net change 16,240 (575) 15,665 Balance at September 30, 2020 $ 22,652 $ (654) $ 21,998

Capital and Regulatory Matters

Capital and Regulatory Matters (Tables)	9 Months Ended
	Sep. 30, 2021
Banking Regulation [Abstract]
Actual Capital Amounts and Ratios	The actual capital amounts and ratios of the Company and Bank at September 30, 2021, and December 31, 2020, are presented in the following table: (Dollars in thousands) September 30, 2021 Actual Minimum Capital Required - Basel III To be Well Capitalized Under Prompt Corrective Action Provisions Common Equity Tier 1 Capital to Risk-Weighted Assets Amount Ratio Amount Ratio Amount Ratio Origin Bancorp, Inc. $ 673,003 11.23 % $ 419,630 7.00 % N/A N/A Origin Bank 701,939 11.79 416,719 7.00 $ 386,953 6.50 % Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 682,403 11.38 509,551 8.50 N/A N/A Origin Bank 701,939 11.79 506,016 8.50 476,250 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 893,412 14.90 629,446 10.50 N/A N/A Origin Bank 834,307 14.01 625,078 10.50 595,313 10.00 Leverage Ratio Origin Bancorp, Inc. 682,403 9.18 297,379 4.00 N/A N/A Origin Bank 701,939 9.48 296,152 4.00 370,190 5.00 December 31, 2020 Common Equity Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 604,306 9.95 425,012 7.00 N/A N/A Origin Bank 637,863 10.53 424,010 7.00 393,724 6.50 Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 613,682 10.11 516,107 8.50 N/A N/A Origin Bank 637,863 10.53 514,870 8.50 484,583 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 837,058 13.79 637,539 10.50 N/A N/A Origin Bank 782,503 12.92 636,019 10.50 605,732 10.00 Leverage Ratio Origin Bancorp, Inc. 613,682 8.62 284,771 4.00 N/A N/A Origin Bank 637,863 8.99 283,842 4.00 354,802 5.00

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Off-Balance Sheet Financial Instruments	These off-balance sheet financial instruments are summarized below: (Dollars in thousands) September 30, 2021 December 31, 2020 Commitments to extend credit $ 1,567,440 $ 1,341,501 Standby letters of credit 54,721 42,911

Significant Accounting Polici_3

Significant Accounting Policies (Details)	9 Months Ended
	Sep. 30, 2021segmentcenter
Accounting Policies [Abstract]
Number of banking centers | center	44
Number of segments | segment	1

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator:
Net income	$ 26,978	$ 27,733	$ 25,513	$ 13,095	$ 4,957	$ 753	$ 80,224	$ 18,805
Denominator:
Weighted average common shares outstanding (in shares)	23,429,705			23,374,496			23,413,794	23,358,672
Dilutive effect of stock-based awards (in shares)	183,305			126,100			192,803	140,166
Weighted average diluted common shares outstanding (in shares)	23,613,010			23,500,596			23,606,597	23,498,838
Basic earnings per common share (in dollars per share)	$ 1.15			$ 0.56			$ 3.43	$ 0.81
Diluted earnings per common share (in dollars per share)	$ 1.14			$ 0.56			$ 3.40	$ 0.80

Securities - Amortized Cost and

Securities - Amortized Cost and Estimated Fair Value of Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2019
Available for sale:
Available for sale, amortized cost	$ 1,471,348	$ 971,595
Available for sale, gross unrealized gains	23,906	33,972
Available for sale, gross unrealized losses	(8,711)	(893)
Available for sale, fair value	1,486,543	1,004,674
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	1,486,543	1,004,674
Held to maturity:
Held to maturity, fair value	40,415	41,205
Held to maturity, allowance for credit losses	(60)	(66)	$ (144)	$ 0
Held to maturity, net carrying amount	37,702	38,128
Securities carried at fair value through income:
Securities carried at fair value through income, fair value	10,876	11,554
State and municipal securities
Available for sale:
Available for sale, amortized cost	397,635	420,559
Available for sale, gross unrealized gains	13,551	21,884
Available for sale, gross unrealized losses	(2,453)	(258)
Available for sale, fair value	408,733	442,185
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	408,733	442,185
Held to maturity:
Held to maturity, amortized cost	37,762	38,194
Held to maturity, gross unrealized gains	2,653	3,011
Held to maturity, gross unrealized losses	0	0
Held to maturity, fair value	40,415	41,205
Held to maturity, allowance for credit losses	(60)	(66)
Held to maturity, net carrying amount	37,702	38,128
Securities carried at fair value through income:
Securities carried at fair value through income, amortized cost	10,353	10,618
Securities carried at fair value through income, fair value	10,876	11,554
Securities carried at fair value through income, net carrying amount	10,876	11,554
Corporate bonds
Available for sale:
Available for sale, amortized cost	76,260	64,313
Available for sale, gross unrealized gains	2,708	1,762
Available for sale, gross unrealized losses	(141)	(137)
Available for sale, fair value	78,827	65,938
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	78,827	65,938
U.S. government and agency securities
Available for sale:
Available for sale, amortized cost	99,101	851
Available for sale, gross unrealized gains	15	3
Available for sale, gross unrealized losses	(615)	(5)
Available for sale, fair value	98,501	849
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	98,501	849
Commercial mortgage-backed securities
Available for sale:
Available for sale, amortized cost	39,931	10,814
Available for sale, gross unrealized gains	222	266
Available for sale, gross unrealized losses	(715)	0
Available for sale, fair value	39,438	11,080
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	39,438	11,080
Residential mortgage-backed securities
Available for sale:
Available for sale, amortized cost	553,202	207,742
Available for sale, gross unrealized gains	5,090	7,441
Available for sale, gross unrealized losses	(2,941)	(232)
Available for sale, fair value	555,351	214,951
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	555,351	214,951
Commercial collateralized mortgage obligations
Available for sale:
Available for sale, amortized cost	10,596
Available for sale, gross unrealized gains	0
Available for sale, gross unrealized losses	(159)
Available for sale, fair value	10,437
Available for sale, allowance for credit losses	0
Available-for-sale, net carrying amount	10,437
Residential collateralized mortgage obligations
Available for sale:
Available for sale, amortized cost	211,293	193,865
Available for sale, gross unrealized gains	825	1,739
Available for sale, gross unrealized losses	(1,687)	(261)
Available for sale, fair value	210,431	195,343
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	210,431	195,343
Asset-backed securities
Available for sale:
Available for sale, amortized cost	83,330	73,451
Available for sale, gross unrealized gains	1,495	877
Available for sale, gross unrealized losses	0	0
Available for sale, fair value	84,825	74,328
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	$ 84,825	$ 74,328

Securities - Unrealized Losses

Securities - Unrealized Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value
Less than 12 Months	$ 726,310	$ 119,581
12 Months or More	35,537	568
Total	761,847	120,149
Unrealized Loss
Less than 12 Months	(7,948)	(888)
12 Months or More	(763)	(5)
Total	(8,711)	(893)
State and municipal securities
Fair Value
Less than 12 Months	116,139	21,979
12 Months or More	9,983	0
Total	126,122	21,979
Unrealized Loss
Less than 12 Months	(2,108)	(258)
12 Months or More	(345)	0
Total	(2,453)	(258)
Fair Value
Less than 12 Months	0	0
12 Months or More	0	0
Total	0	0
Unrealized Loss
Less than 12 Months	0	0
12 Months or More	0	0
Total	0	0
Corporate bonds
Fair Value
Less than 12 Months	11,907	30,513
12 Months or More	2,952	0
Total	14,859	30,513
Unrealized Loss
Less than 12 Months	(93)	(137)
12 Months or More	(48)	0
Total	(141)	(137)
U.S. government and agency securities
Fair Value
Less than 12 Months	52,655	0
12 Months or More	464	568
Total	53,119	568
Unrealized Loss
Less than 12 Months	(613)	0
12 Months or More	(2)	(5)
Total	(615)	(5)
Commercial mortgage-backed securities
Fair Value
Less than 12 Months	36,978
12 Months or More	0
Total	36,978
Unrealized Loss
Less than 12 Months	(715)
12 Months or More	0
Total	(715)
Residential mortgage-backed securities
Fair Value
Less than 12 Months	372,308	23,178
12 Months or More	1,815	0
Total	374,123	23,178
Unrealized Loss
Less than 12 Months	(2,902)	(232)
12 Months or More	(39)	0
Total	(2,941)	(232)
Commercial collateralized mortgage obligations
Fair Value
Less than 12 Months	10,437
12 Months or More	0
Total	10,437
Unrealized Loss
Less than 12 Months	(159)
12 Months or More	0
Total	(159)
Residential collateralized mortgage obligations
Fair Value
Less than 12 Months	125,886	43,911
12 Months or More	20,323	0
Total	146,209	43,911
Unrealized Loss
Less than 12 Months	(1,358)	(261)
12 Months or More	(329)	0
Total	$ (1,687)	$ (261)

Securities - Narrative (Details

Securities - Narrative (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, accrued interest	$ 6,000,000		$ 4,400,000
Held to maturity, amortized cost	37,762,000
Held-to-maturity securities, nonaccrual status	0	$ 0
Total Past Due
Schedule of Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	$ 0	$ 0

Securities - Allowance for Cred

Securities - Allowance for Credit Losses for Held -to - Maturity Securities (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Allowance for credit losses:
Beginning Balance			$ 66,000	$ 0
Credit loss recovery			(6,000)
Impact of adopting ASC 326	$ 60,000	$ 144,000	60,000	144,000
Credit loss expense	(11,000)	0	(6,000)	48,000
Ending Balance	$ 60,000	$ 144,000	$ 60,000	144,000
Adjustment
Allowance for credit losses:
Beginning Balance				$ 96,000
Impact of adopting ASC 326

Securities - Proceeds from Sale

Securities - Proceeds from Sales of Securities Available for Sale and Gross Gains (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales/calls	$ 43,053	$ 35,208
Gross realized gains	1,705	434
Gross realized losses	$ (32)	$ (79)

Securities - Contractual Maturi

Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Amortized Cost
Due in one year or less	$ 12,574
Due after one year through five years	0
Due after five years through ten years	25,188
Due after ten years	0
Held to maturity, amortized cost	37,762
Fair Value
Due in one year or less	12,579
Due after one year through five years	0
Due after five years through ten years	27,836
Due after ten years	0
Held to maturity, fair value	40,415	$ 41,205
Amortized Cost
Due in one year or less	3,553
Due after one year through five years	116,012
Due after five years through ten years	155,246
Due after ten years	298,185
Available for sale, amortized cost	1,471,348	971,595
Fair Value
Due in one year or less	3,573
Due after one year through five years	120,144
Due after five years through ten years	158,315
Due after ten years	304,029
Available for sale, fair value	1,486,543	1,004,674
Commercial mortgage-backed securities
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	39,931
Available for sale, amortized cost	39,931	10,814
Fair Value
Without single maturity date	39,438
Available for sale, fair value	39,438	11,080
Residential mortgage-backed securities
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	553,202
Available for sale, amortized cost	553,202	207,742
Fair Value
Without single maturity date	555,351
Available for sale, fair value	555,351	214,951
Commercial collateralized mortgage obligations
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	10,596
Available for sale, amortized cost	10,596
Fair Value
Without single maturity date	10,437
Available for sale, fair value	10,437
Residential collateralized mortgage obligations
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	211,293
Available for sale, amortized cost	211,293	193,865
Fair Value
Without single maturity date	210,431
Available for sale, fair value	210,431	195,343
Asset-backed securities
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	83,330
Available for sale, amortized cost	83,330	73,451
Fair Value
Without single maturity date	84,825
Available for sale, fair value	$ 84,825	$ 74,328

Securities - Securities Pledged

Securities - Securities Pledged as Collateral (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Carrying value of securities pledged to secure public deposits
Schedule of Held-to-maturity Securities [Line Items]
Securities pledged as collateral	$ 244,534	$ 289,537
Carrying value of securities pledged to repurchase agreements
Schedule of Held-to-maturity Securities [Line Items]
Securities pledged as collateral	$ 11,669	$ 10,982

Loans - Schedule of Loans (Deta

Loans - Schedule of Loans (Details) - USD ($)	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Loans held for sale	$ 109,956,000		$ 191,512,000
Total	5,187,288,000		5,707,762,000
Loans accounted for at fair value	0		17,011,000
Total LHFI	5,187,288,000		5,724,773,000
Allowance for credit loss	69,947,000	$ 77,104,000	86,670,000	$ 81,643,000	$ 70,468,000	$ 37,520,000
LHFI, net	5,117,341,000		5,638,103,000
Net deferred loan fees	11,700,000		13,700,000
Paycheck Protection Program
Loans and Leases Receivable Disclosure [Line Items]
Total	217,000,000		546,500,000
Net deferred loan fees	6,300,000
Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	3,022,850,000		2,787,908,000
Total LHFI	3,022,850,000		2,804,919,000
Real estate | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	1,590,519,000		1,370,928,000
Loans accounted for at fair value	0		17,000,000
Total LHFI	1,590,519,000		1,387,939,000
Allowance for credit loss	15,919,000	16,282,000	15,430,000	14,349,000	10,046,000	10,013,000
Real estate | Construction/land/land development
Loans and Leases Receivable Disclosure [Line Items]
Total	518,920,000		531,860,000
Total LHFI	518,920,000		531,860,000
Allowance for credit loss	5,009,000	5,602,000	8,191,000	8,450,000	6,860,000	3,711,000
Real estate | Residential real estate
Loans and Leases Receivable Disclosure [Line Items]
Total	913,411,000		885,120,000
Total LHFI	913,411,000		885,120,000
Allowance for credit loss	6,119,000	9,059,000	9,418,000	8,226,000	6,911,000	6,332,000
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total	1,435,203,000		1,817,862,000
Total LHFI	1,435,203,000		1,817,862,000
Allowance for credit loss	41,861,000	45,049,000	51,857,000	48,763,000	45,281,000	16,960,000
Mortgage warehouse lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Total	713,339,000		1,084,001,000
Total LHFI	713,339,000		1,084,001,000
Allowance for credit loss	470,000	560,000	856,000	904,000	602,000	262,000
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total	15,896,000		17,991,000
Total LHFI	15,896,000		17,991,000
Allowance for credit loss	$ 569,000	$ 552,000	$ 918,000	$ 951,000	$ 768,000	$ 242,000

Loans - Narrative (Details)

Loans - Narrative (Details)	9 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)loan	Dec. 31, 2020USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment at fair value	$ 0		$ 17,011,000
Loans held for investment	5,187,288,000		5,707,762,000
Net deferred loan fees	11,700,000		13,700,000
Accrued interest	16,300,000	$ 19,300,000
Decline in total collective reserves	21,700,000
Decrease in reserves due to qualitative factor changes across risk pools	16,700,000
Provision expense		29,200,000
Provision expense as a result of COVID-19 due to effects of individually evaluated loans		$ 5,900,000
Nonaccrual mortgage loans held for sale recorded at fair value	2,100,000		681,000
Number of loans that defaulted | loan		2
Nonperforming Financial Instruments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross interest income that would have been recorded	1,400,000	$ 1,100,000
Interest income	0	0
Outstanding principal balance		$ 45,000
Paycheck Protection Program
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	217,000,000		546,500,000
Net deferred loan fees	6,300,000
Debt instrument forgiveness	558,700,000
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of significant loan write-offs | loan		2
Charge-off as a result of COVID-19		$ 3,400,000
Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	3,022,850,000		2,787,908,000
Real estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment at fair value	0		17,000,000
Loans held for investment	1,590,519,000		1,370,928,000
Commercial Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,435,203,000		$ 1,817,862,000
Provision expense		16,400,000
Provision expense as a result of COVID-19 due to effects of individually evaluated loans		$ 5,800,000
Number of significant loan write-offs | loan		2
Charge-off as a result of COVID-19		$ 2,500,000

Loans - Loans by Credit Quality

Loans - Loans by Credit Quality Indicator (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 5,187,288,000		$ 5,187,288,000		$ 5,707,762,000
Charge-offs	3,035,000	$ 2,293,000	9,072,000	$ 10,305,000
Total, Current period gross recoveries	144,000	498,000	479,000	936,000
Loans at fair value	0		0		17,011,000
Real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total	3,022,850,000		3,022,850,000		2,787,908,000
Real estate | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	368,645,000		368,645,000		396,947,000
Year two	399,882,000		399,882,000		292,185,000
Year three	296,048,000		296,048,000		321,165,000
Year four	264,887,000		264,887,000		181,722,000
Year five	141,470,000		141,470,000		47,608,000
Prior	97,863,000		97,863,000		109,743,000
Revolving Loans Amortized Cost Basis	21,724,000		21,724,000		21,558,000
Total	1,590,519,000		1,590,519,000		1,370,928,000
2021, Current period gross charge-offs			0
2020, Current period gross charge-offs			0		0
2019, Current period gross charge-offs			0		0
2018, Current period gross charge-offs			80,000		0
2017, Current period gross charge-offs			24,000		3,622,000
2016, Current period gross charge-offs					199,000
Prior, Current period gross charge-offs			26,000		1,103,000
Revolving Loans Amortized Cost Basis, Current period gross charge-offs			0		0
Charge-offs	0	200,000	130,000	3,868,000	4,924,000
2021, Current period gross recoveries			0
2020, Current period gross recoveries			0		0
2019, Current period gross recoveries			0		0
2018, Current period gross recoveries			0		0
2017, Current period gross recoveries			0		0
2016, Current period gross recoveries					0
Prior, Current period gross recoveries			10,000		19,000
Revolving Loans Amortized Cost Basis, Current period gross recoveries			0		0
Total, Current period gross recoveries	4,000	0	10,000	6,000	19,000
2021, Current period net charge-offs (recoveries)			0
2020, Current period net charge-offs (recoveries)			0		0
2019, Current period net charge-offs (recoveries)			0		0
2018, Current period net charge-offs (recoveries)			80,000		0
2017, Current period net charge-offs (recoveries)			24,000		3,622,000
2016, Current period net charge-offs (recoveries)					199,000
Prior, Current period net charge-offs (recoveries)			16,000		1,084,000
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)			0		0
Total, Current period net charge-offs (recoveries)			120,000		4,905,000
Loans at fair value	0		0		17,000,000
Real estate | Commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	362,257,000		362,257,000		393,317,000
Year two	398,932,000		398,932,000		290,394,000
Year three	295,133,000		295,133,000		312,051,000
Year four	253,886,000		253,886,000		154,445,000
Year five	123,844,000		123,844,000		46,132,000
Prior	95,542,000		95,542,000		106,994,000
Revolving Loans Amortized Cost Basis	21,561,000		21,561,000		18,419,000
Total	1,551,155,000		1,551,155,000		1,321,752,000
Real estate | Commercial real estate | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	4,321,000		4,321,000		824,000
Year two	0		0		113,000
Year three	0		0		2,410,000
Year four	8,474,000		8,474,000		20,691,000
Year five	17,324,000		17,324,000		0
Prior	0		0		1,656,000
Revolving Loans Amortized Cost Basis	0		0		2,145,000
Total	30,119,000		30,119,000		27,839,000
Real estate | Commercial real estate | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	2,067,000		2,067,000		2,806,000
Year two	950,000		950,000		1,678,000
Year three	915,000		915,000		6,704,000
Year four	2,527,000		2,527,000		6,586,000
Year five	302,000		302,000		1,476,000
Prior	2,321,000		2,321,000		1,093,000
Revolving Loans Amortized Cost Basis	163,000		163,000		994,000
Total	9,245,000		9,245,000		21,337,000
Real estate | Construction/land/land development
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	192,522,000		192,522,000		189,634,000
Year two	118,430,000		118,430,000		162,513,000
Year three	109,051,000		109,051,000		138,861,000
Year four	54,365,000		54,365,000		15,417,000
Year five	7,483,000		7,483,000		1,955,000
Prior	810,000		810,000		1,325,000
Revolving Loans Amortized Cost Basis	36,259,000		36,259,000		22,155,000
Total	518,920,000		518,920,000		531,860,000
2021, Current period gross charge-offs			0
2020, Current period gross charge-offs			0		0
2019, Current period gross charge-offs			0		0
2018, Current period gross charge-offs			0		0
2017, Current period gross charge-offs			0		0
2016, Current period gross charge-offs					0
Prior, Current period gross charge-offs			0		0
Revolving Loans Amortized Cost Basis, Current period gross charge-offs			0		0
Charge-offs	0	0	0	0	0
2021, Current period gross recoveries			0
2020, Current period gross recoveries			0		0
2019, Current period gross recoveries			0		0
2018, Current period gross recoveries			0		0
2017, Current period gross recoveries			0		0
2016, Current period gross recoveries					0
Prior, Current period gross recoveries			0		1,000
Revolving Loans Amortized Cost Basis, Current period gross recoveries			0		0
Total, Current period gross recoveries	0	1,000	0	1,000	1,000
2021, Current period net charge-offs (recoveries)			0
2020, Current period net charge-offs (recoveries)			0		0
2019, Current period net charge-offs (recoveries)			0		0
2018, Current period net charge-offs (recoveries)			0		0
2017, Current period net charge-offs (recoveries)			0		0
2016, Current period net charge-offs (recoveries)					0
Prior, Current period net charge-offs (recoveries)			0		(1,000)
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)			0		0
Total, Current period net charge-offs (recoveries)			0		(1,000)
Real estate | Construction/land/land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	191,832,000		191,832,000		189,311,000
Year two	118,126,000		118,126,000		150,281,000
Year three	102,047,000		102,047,000		138,000,000
Year four	53,742,000		53,742,000		12,907,000
Year five	5,669,000		5,669,000		1,812,000
Prior	756,000		756,000		1,157,000
Revolving Loans Amortized Cost Basis	24,832,000		24,832,000		18,892,000
Total	497,004,000		497,004,000		512,360,000
Real estate | Construction/land/land development | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		323,000
Year two	0		0		10,421,000
Year three	6,817,000		6,817,000		135,000
Year four	436,000		436,000		1,003,000
Year five	1,776,000		1,776,000		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	0		0		0
Total	9,029,000		9,029,000		11,882,000
Real estate | Construction/land/land development | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	690,000		690,000		0
Year two	304,000		304,000		1,811,000
Year three	187,000		187,000		726,000
Year four	187,000		187,000		1,507,000
Year five	38,000		38,000		143,000
Prior	54,000		54,000		168,000
Revolving Loans Amortized Cost Basis	11,427,000		11,427,000		3,263,000
Total	12,887,000		12,887,000		7,618,000
Real estate | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	234,403,000		234,403,000		369,697,000
Year two	304,926,000		304,926,000		145,771,000
Year three	111,095,000		111,095,000		106,461,000
Year four	77,696,000		77,696,000		104,658,000
Year five	49,702,000		49,702,000		52,153,000
Prior	81,238,000		81,238,000		52,430,000
Revolving Loans Amortized Cost Basis	54,351,000		54,351,000		53,950,000
Total	913,411,000		913,411,000		885,120,000
2021, Current period gross charge-offs			0
2020, Current period gross charge-offs			0		94,000
2019, Current period gross charge-offs			58,000		271,000
2018, Current period gross charge-offs			0		0
2017, Current period gross charge-offs			0		283,000
2016, Current period gross charge-offs					0
Prior, Current period gross charge-offs			0		44,000
Revolving Loans Amortized Cost Basis, Current period gross charge-offs			0		0
Charge-offs	0	549,000	58,000	598,000	692,000
2021, Current period gross recoveries			0
2020, Current period gross recoveries			21,000		0
2019, Current period gross recoveries			0		0
2018, Current period gross recoveries			0		0
2017, Current period gross recoveries			25,000		0
2016, Current period gross recoveries					0
Prior, Current period gross recoveries			35,000		202,000
Revolving Loans Amortized Cost Basis, Current period gross recoveries			0		0
Total, Current period gross recoveries	64,000	11,000	81,000	180,000	202,000
2021, Current period net charge-offs (recoveries)			0
2020, Current period net charge-offs (recoveries)			(21,000)		94,000
2019, Current period net charge-offs (recoveries)			58,000		271,000
2018, Current period net charge-offs (recoveries)			0		0
2017, Current period net charge-offs (recoveries)			(25,000)		283,000
2016, Current period net charge-offs (recoveries)					0
Prior, Current period net charge-offs (recoveries)			(35,000)		(158,000)
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)			0		0
Total, Current period net charge-offs (recoveries)			(23,000)		490,000
Real estate | Residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	233,927,000		233,927,000		367,652,000
Year two	304,579,000		304,579,000		143,368,000
Year three	108,650,000		108,650,000		103,450,000
Year four	74,732,000		74,732,000		102,272,000
Year five	47,271,000		47,271,000		41,522,000
Prior	74,351,000		74,351,000		50,094,000
Revolving Loans Amortized Cost Basis	54,086,000		54,086,000		53,854,000
Total	897,596,000		897,596,000		862,212,000
Real estate | Residential real estate | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		188,000
Year two	177,000		177,000		0
Year three	147,000		147,000		29,000
Year four	0		0		1,875,000
Year five	482,000		482,000		9,287,000
Prior	285,000		285,000		803,000
Revolving Loans Amortized Cost Basis	0		0		0
Total	1,091,000		1,091,000		12,182,000
Real estate | Residential real estate | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	476,000		476,000		1,857,000
Year two	170,000		170,000		2,403,000
Year three	2,298,000		2,298,000		2,982,000
Year four	2,964,000		2,964,000		511,000
Year five	1,949,000		1,949,000		1,344,000
Prior	6,602,000		6,602,000		1,533,000
Revolving Loans Amortized Cost Basis	265,000		265,000		96,000
Total	14,724,000		14,724,000		10,726,000
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	445,623,000		445,623,000		862,076,000
Year two	229,478,000		229,478,000		168,031,000
Year three	121,265,000		121,265,000		142,389,000
Year four	81,761,000		81,761,000		35,286,000
Year five	21,294,000		21,294,000		15,877,000
Prior	30,584,000		30,584,000		48,514,000
Revolving Loans Amortized Cost Basis	505,198,000		505,198,000		545,689,000
Total	1,435,203,000		1,435,203,000		1,817,862,000
2021, Current period gross charge-offs			9,000
2020, Current period gross charge-offs			1,172,000		189,000
2019, Current period gross charge-offs			54,000		204,000
2018, Current period gross charge-offs			0		87,000
2017, Current period gross charge-offs			467,000		121,000
2016, Current period gross charge-offs					3,228,000
Prior, Current period gross charge-offs			5,449,000		469,000
Revolving Loans Amortized Cost Basis, Current period gross charge-offs			1,679,000		2,404,000
Charge-offs	3,030,000	1,517,000	8,830,000	5,770,000	6,702,000
2021, Current period gross recoveries			0
2020, Current period gross recoveries			6,000		0
2019, Current period gross recoveries			42,000		42,000
2018, Current period gross recoveries			3,000		20,000
2017, Current period gross recoveries			87,000		81,000
2016, Current period gross recoveries					185,000
Prior, Current period gross recoveries			185,000		112,000
Revolving Loans Amortized Cost Basis, Current period gross recoveries			29,000		582,000
Total, Current period gross recoveries	58,000	480,000	352,000	736,000	1,022,000
2021, Current period net charge-offs (recoveries)			9,000
2020, Current period net charge-offs (recoveries)			1,166,000		189,000
2019, Current period net charge-offs (recoveries)			12,000		162,000
2018, Current period net charge-offs (recoveries)			(3,000)		67,000
2017, Current period net charge-offs (recoveries)			380,000		40,000
2016, Current period net charge-offs (recoveries)					3,043,000
Prior, Current period net charge-offs (recoveries)			5,264,000		357,000
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)			1,650,000		1,822,000
Total, Current period net charge-offs (recoveries)			8,478,000		5,680,000
Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	430,671,000		430,671,000		851,780,000
Year two	226,901,000		226,901,000		153,722,000
Year three	117,343,000		117,343,000		110,092,000
Year four	75,605,000		75,605,000		29,413,000
Year five	16,970,000		16,970,000		9,927,000
Prior	26,823,000		26,823,000		26,964,000
Revolving Loans Amortized Cost Basis	491,920,000		491,920,000		511,220,000
Total	1,386,233,000		1,386,233,000		1,693,118,000
Commercial and industrial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	775,000		775,000		4,860,000
Year two	2,180,000		2,180,000		2,059,000
Year three	1,743,000		1,743,000		26,438,000
Year four	2,131,000		2,131,000		423,000
Year five	0		0		0
Prior	0		0		14,843,000
Revolving Loans Amortized Cost Basis	3,501,000		3,501,000		8,077,000
Total	10,330,000		10,330,000		56,700,000
Commercial and industrial | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	14,177,000		14,177,000		5,436,000
Year two	397,000		397,000		12,250,000
Year three	2,179,000		2,179,000		5,859,000
Year four	4,025,000		4,025,000		5,450,000
Year five	4,324,000		4,324,000		5,950,000
Prior	3,761,000		3,761,000		6,707,000
Revolving Loans Amortized Cost Basis	9,777,000		9,777,000		26,392,000
Total	38,640,000		38,640,000		68,044,000
Mortgage warehouse lines of credit
Financing Receivable, Credit Quality Indicator [Line Items]
Total	713,339,000		713,339,000		1,084,001,000
2021, Current period gross charge-offs			0
2020, Current period gross charge-offs			0		0
2019, Current period gross charge-offs			0		0
2018, Current period gross charge-offs			0		0
2017, Current period gross charge-offs			0		0
2016, Current period gross charge-offs					0
Prior, Current period gross charge-offs			0		0
Revolving Loans Amortized Cost Basis, Current period gross charge-offs			0		0
Charge-offs	0	0	0	0	0
2021, Current period gross recoveries			0
2020, Current period gross recoveries			0		0
2019, Current period gross recoveries			0		0
2018, Current period gross recoveries			0		0
2017, Current period gross recoveries			0		0
2016, Current period gross recoveries					0
Prior, Current period gross recoveries			0		0
Revolving Loans Amortized Cost Basis, Current period gross recoveries			0		0
Total, Current period gross recoveries	0	0	0	0	0
2021, Current period net charge-offs (recoveries)			0
2020, Current period net charge-offs (recoveries)			0		0
2019, Current period net charge-offs (recoveries)			0		0
2018, Current period net charge-offs (recoveries)			0		0
2017, Current period net charge-offs (recoveries)			0		0
2016, Current period net charge-offs (recoveries)					0
Prior, Current period net charge-offs (recoveries)			0		0
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)			0		0
Total, Current period net charge-offs (recoveries)			0		0
Mortgage warehouse lines of credit | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		0
Year two	0		0		0
Year three	0		0		0
Year four	0		0		0
Year five	0		0		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	713,339,000		713,339,000		1,084,001,000
Total	713,339,000		713,339,000		1,084,001,000
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	5,092,000		5,092,000		6,730,000
Year two	2,827,000		2,827,000		3,326,000
Year three	1,738,000		1,738,000		1,578,000
Year four	673,000		673,000		203,000
Year five	76,000		76,000		122,000
Prior	82,000		82,000		84,000
Revolving Loans Amortized Cost Basis	5,408,000		5,408,000		5,948,000
Total	15,896,000		15,896,000		17,991,000
2021, Current period gross charge-offs			0
2020, Current period gross charge-offs			0		0
2019, Current period gross charge-offs			25,000		39,000
2018, Current period gross charge-offs			2,000		23,000
2017, Current period gross charge-offs			0		8,000
2016, Current period gross charge-offs					0
Prior, Current period gross charge-offs			9,000		4,000
Revolving Loans Amortized Cost Basis, Current period gross charge-offs			18,000		2,000
Charge-offs	5,000	27,000	54,000	69,000	76,000
2021, Current period gross recoveries			0
2020, Current period gross recoveries			0		0
2019, Current period gross recoveries			9,000		0
2018, Current period gross recoveries			7,000		1,000
2017, Current period gross recoveries			1,000		7,000
2016, Current period gross recoveries					5,000
Prior, Current period gross recoveries			15,000		7,000
Revolving Loans Amortized Cost Basis, Current period gross recoveries			4,000		4,000
Total, Current period gross recoveries	18,000	$ 6,000	36,000	$ 13,000	24,000
2021, Current period net charge-offs (recoveries)			0
2020, Current period net charge-offs (recoveries)			0		0
2019, Current period net charge-offs (recoveries)			16,000		39,000
2018, Current period net charge-offs (recoveries)			(5,000)		22,000
2017, Current period net charge-offs (recoveries)			(1,000)		1,000
2016, Current period net charge-offs (recoveries)					(5,000)
Prior, Current period net charge-offs (recoveries)			(6,000)		(3,000)
Revolving Loans Amortized Cost Basis, Current period net charge-offs (recoveries)			14,000		(2,000)
Total, Current period net charge-offs (recoveries)			18,000		52,000
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	5,084,000		5,084,000		6,702,000
Year two	2,806,000		2,806,000		3,318,000
Year three	1,735,000		1,735,000		1,578,000
Year four	673,000		673,000		203,000
Year five	76,000		76,000		116,000
Prior	80,000		80,000		83,000
Revolving Loans Amortized Cost Basis	5,401,000		5,401,000		5,935,000
Total	15,855,000		15,855,000		17,935,000
Consumer | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	8,000		8,000		28,000
Year two	21,000		21,000		8,000
Year three	3,000		3,000		0
Year four	0		0		0
Year five	0		0		6,000
Prior	2,000		2,000		1,000
Revolving Loans Amortized Cost Basis	7,000		7,000		13,000
Total	$ 41,000		$ 41,000		$ 56,000

Loans - Loan Portfolio Aging An

Loans - Loan Portfolio Aging Analysis (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	$ 5,187,288,000	$ 5,724,773,000
Accruing Loans 90 or More Days Past Due	0	0
Loans at fair value	0	17,011,000
Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	25,954,000	25,763,000
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,494,000	6,031,000
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	2,658,000	1,241,000
Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	21,802,000	18,491,000
Current Loans
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	5,161,334,000	5,699,010,000
Real estate
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	3,022,850,000	2,804,919,000
Accruing Loans 90 or More Days Past Due	0	0
Real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	8,798,000	11,214,000
Real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	507,000	5,215,000
Real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	137,000	135,000
Real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	8,154,000	5,864,000
Real estate | Current Loans
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	3,014,052,000	2,793,705,000
Real estate | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,590,519,000	1,387,939,000
Accruing Loans 90 or More Days Past Due	0	0
Loans at fair value	0	17,000,000
Real estate | Commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	237,000	4,244,000
Real estate | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	1,072,000
Real estate | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	0
Real estate | Commercial real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	237,000	3,172,000
Real estate | Commercial real estate | Current Loans
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,590,282,000	1,383,695,000
Real estate | Construction/land/land development
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	518,920,000	531,860,000
Accruing Loans 90 or More Days Past Due	0	0
Real estate | Construction/land/land development | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	219,000	2,698,000
Real estate | Construction/land/land development | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	167,000	369,000
Real estate | Construction/land/land development | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	52,000	1,000
Real estate | Construction/land/land development | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	2,328,000
Real estate | Construction/land/land development | Current Loans
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	518,701,000	529,162,000
Real estate | Residential real estate
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	913,411,000	885,120,000
Accruing Loans 90 or More Days Past Due	0	0
Real estate | Residential real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	8,342,000	4,272,000
Real estate | Residential real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	340,000	3,774,000
Real estate | Residential real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	85,000	134,000
Real estate | Residential real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	7,917,000	364,000
Real estate | Residential real estate | Current Loans
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	905,069,000	880,848,000
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,435,203,000	1,817,862,000
Accruing Loans 90 or More Days Past Due	0	0
Commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	16,996,000	14,425,000
Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	850,000	703,000
Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	2,498,000	1,097,000
Commercial and industrial | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	13,648,000	12,625,000
Commercial and industrial | Current Loans
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,418,207,000	1,803,437,000
Mortgage warehouse lines of credit
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	713,339,000	1,084,001,000
Accruing Loans 90 or More Days Past Due	0	0
Mortgage warehouse lines of credit | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	0
Mortgage warehouse lines of credit | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	0
Mortgage warehouse lines of credit | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	0
Mortgage warehouse lines of credit | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	0
Mortgage warehouse lines of credit | Current Loans
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	713,339,000	1,084,001,000
Consumer
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	15,896,000	17,991,000
Accruing Loans 90 or More Days Past Due	0	0
Consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	160,000	124,000
Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	137,000	113,000
Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	23,000	9,000
Consumer | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	2,000
Consumer | Current Loans
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	$ 15,736,000	$ 17,867,000

Loans - Allowance for Loan Loss

Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 77,104,000	$ 70,468,000	$ 86,670,000	$ 37,520,000	$ 37,520,000
Impact of Adopting ASC 326	69,947,000	81,643,000	69,947,000	81,643,000	86,670,000
Charge-offs	3,035,000	2,293,000	9,072,000	10,305,000
Recoveries	144,000	498,000	479,000	936,000
Provision	(4,266,000)	12,970,000	(8,130,000)	52,244,000
Ending Balance	69,947,000	81,643,000	69,947,000	81,643,000	86,670,000
Provision (benefit) for credit losses	(3,900,000)	13,600,000	(8,100,000)	53,600,000
Provision (release) for off-balance sheet commitments	356,000	663,000	19,000	1,300,000
Credit loss expense (benefit)	(11,000)	0	(6,000)	48,000
Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				1,248,000	1,248,000
Impact of Adopting ASC 326
Real estate | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	16,282,000	10,046,000	15,430,000	10,013,000	10,013,000
Impact of Adopting ASC 326	15,919,000	14,349,000	15,919,000	14,349,000	15,430,000
Charge-offs	0	200,000	130,000	3,868,000	4,924,000
Recoveries	4,000	0	10,000	6,000	19,000
Provision	(367,000)	4,503,000	609,000	13,250,000
Ending Balance	15,919,000	14,349,000	15,919,000	14,349,000	15,430,000
Real estate | Commercial real estate | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				(5,052,000)	(5,052,000)
Impact of Adopting ASC 326
Real estate | Construction/land/land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	5,602,000	6,860,000	8,191,000	3,711,000	3,711,000
Impact of Adopting ASC 326	5,009,000	8,450,000	5,009,000	8,450,000	8,191,000
Charge-offs	0	0	0	0	0
Recoveries	0	1,000	0	1,000	1,000
Provision	(593,000)	1,589,000	(3,182,000)	3,597,000
Ending Balance	5,009,000	8,450,000	5,009,000	8,450,000	8,191,000
Real estate | Construction/land/land development | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				1,141,000	1,141,000
Impact of Adopting ASC 326
Real estate | Residential real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	9,059,000	6,911,000	9,418,000	6,332,000	6,332,000
Impact of Adopting ASC 326	6,119,000	8,226,000	6,119,000	8,226,000	9,418,000
Charge-offs	0	549,000	58,000	598,000	692,000
Recoveries	64,000	11,000	81,000	180,000	202,000
Provision	(3,004,000)	1,853,000	(3,322,000)	4,838,000
Ending Balance	6,119,000	8,226,000	6,119,000	8,226,000	9,418,000
Real estate | Residential real estate | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				(2,526,000)	(2,526,000)
Impact of Adopting ASC 326
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	45,049,000	45,281,000	51,857,000	16,960,000	16,960,000
Impact of Adopting ASC 326	41,861,000	48,763,000	41,861,000	48,763,000	51,857,000
Charge-offs	3,030,000	1,517,000	8,830,000	5,770,000	6,702,000
Recoveries	58,000	480,000	352,000	736,000	1,022,000
Provision	(216,000)	4,519,000	(1,518,000)	29,541,000
Ending Balance	41,861,000	48,763,000	41,861,000	48,763,000	51,857,000
Commercial and industrial | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				7,296,000	7,296,000
Impact of Adopting ASC 326
Mortgage warehouse lines of credit
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	560,000	602,000	856,000	262,000	262,000
Impact of Adopting ASC 326	470,000	904,000	470,000	904,000	856,000
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0	0
Provision	(90,000)	302,000	(386,000)	613,000
Ending Balance	470,000	904,000	470,000	904,000	856,000
Mortgage warehouse lines of credit | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				29,000	29,000
Impact of Adopting ASC 326
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	552,000	768,000	918,000	242,000	242,000
Impact of Adopting ASC 326	569,000	951,000	569,000	951,000	918,000
Charge-offs	5,000	27,000	54,000	69,000	76,000
Recoveries	18,000	6,000	36,000	13,000	24,000
Provision	4,000	204,000	(331,000)	405,000
Ending Balance	$ 569,000	$ 951,000	$ 569,000	951,000	918,000
Consumer | Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				$ 360,000	$ 360,000
Impact of Adopting ASC 326

Loans - Recorded Investment in

Loans - Recorded Investment in Loans and Allowance for Credit Losses by Loss Estimation Methodology (Details) - USD ($)	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 5,187,288,000		$ 5,707,762,000
Loans, allowance for credit losses	69,947,000	$ 77,104,000	86,670,000	$ 81,643,000	$ 70,468,000	$ 37,520,000
Loans at fair value	0		17,011,000
Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	5,160,727,000		5,679,234,000
Loan balance collectively evaluated	56,730,000		78,429,000
Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	17,412,000		10,955,000
Loan balance individually evaluated	7,717,000		2,360,000
Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	9,149,000		17,573,000
Loan balance individually evaluated	5,500,000		5,881,000
Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	3,022,850,000		2,787,908,000
Real estate | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	1,590,519,000		1,370,928,000
Loans, allowance for credit losses	15,919,000	16,282,000	15,430,000	14,349,000	10,046,000	10,013,000
Loans at fair value	0		17,000,000
Real estate | Commercial real estate | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	1,588,069,000		1,365,284,000
Loan balance collectively evaluated	15,907,000		14,896,000
Real estate | Commercial real estate | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	237,000		3,173,000
Loan balance individually evaluated	0		525,000
Real estate | Commercial real estate | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	2,213,000		2,471,000
Loan balance individually evaluated	12,000		9,000
Real estate | Construction/land/land development
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	518,920,000		531,860,000
Loans, allowance for credit losses	5,009,000	5,602,000	8,191,000	8,450,000	6,860,000	3,711,000
Real estate | Construction/land/land development | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	518,326,000		528,894,000
Loan balance collectively evaluated	5,001,000		8,062,000
Real estate | Construction/land/land development | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	287,000		2,621,000
Loan balance individually evaluated	0		128,000
Real estate | Construction/land/land development | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	307,000		345,000
Loan balance individually evaluated	8,000		1,000
Real estate | Residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	913,411,000		885,120,000
Loans, allowance for credit losses	6,119,000	9,059,000	9,418,000	8,226,000	6,911,000	6,332,000
Real estate | Residential real estate | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	904,482,000		879,015,000
Loan balance collectively evaluated	6,103,000		8,983,000
Real estate | Residential real estate | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	8,335,000		2,009,000
Loan balance individually evaluated	16,000		0
Real estate | Residential real estate | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	594,000		4,096,000
Loan balance individually evaluated	0		435,000
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	1,435,203,000		1,817,862,000
Loans, allowance for credit losses	41,861,000	45,049,000	51,857,000	48,763,000	45,281,000	16,960,000
Commercial and industrial | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	1,420,616,000		1,804,049,000
Loan balance collectively evaluated	28,681,000		44,714,000
Commercial and industrial | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	8,552,000		3,152,000
Loan balance individually evaluated	7,700,000		1,707,000
Commercial and industrial | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	6,035,000		10,661,000
Loan balance individually evaluated	5,480,000		5,436,000
Mortgage warehouse lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	713,339,000		1,084,001,000
Loans, allowance for credit losses	470,000	560,000	856,000	904,000	602,000	262,000
Mortgage warehouse lines of credit | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	713,339,000		1,084,001,000
Loan balance collectively evaluated	470,000		856,000
Mortgage warehouse lines of credit | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	0		0
Loan balance individually evaluated	0		0
Mortgage warehouse lines of credit | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	0		0
Loan balance individually evaluated	0		0
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	15,896,000		17,991,000
Loans, allowance for credit losses	569,000	$ 552,000	918,000	$ 951,000	$ 768,000	$ 242,000
Consumer | Probability of Default
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated, probability of default	15,895,000		17,991,000
Loan balance collectively evaluated	568,000		918,000
Consumer | Fair Value of Collateral
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	1,000		0
Loan balance individually evaluated	1,000		0
Consumer | Discounted Cash Flow
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan balance individually evaluated	0		0
Loan balance individually evaluated	$ 0		$ 0

Loans - Non Performing (Nonaccr

Loans - Non Performing (Nonaccrual) Loans Held For Investment (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	$ 8,928	$ 4,890
Nonaccrual	24,555	26,149
Real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	8,866	4,808
Nonaccrual	10,641	13,196
Real estate | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	641	1,053
Nonaccrual	672	3,704
Real estate | Construction/land/land development
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	342	1,319
Nonaccrual	592	2,962
Real estate | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	7,883	2,436
Nonaccrual	9,377	6,530
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	62	82
Nonaccrual	13,873	12,897
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	0	0
Nonaccrual	$ 41	$ 56

Loans - Troubled Debt Restructu

Loans - Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans classified as troubled debt restructurings	$ 7,404	$ 8,985
Nonaccrual TDRs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans classified as troubled debt restructurings	4,559	5,671
Performing TDRs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans classified as troubled debt restructurings	$ 2,845	$ 3,314

Loans - Pre-Modification Balanc

Loans - Pre-Modification Balances of TDR (Details) - Nonperforming Financial Instruments $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)loan	Sep. 30, 2020USD ($)loan	Sep. 30, 2021USD ($)loan	Sep. 30, 2020USD ($)loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan	2	7	2	9
Pre-Modification Recorded Balance	$ 131	$ 2,031	$ 131	$ 2,159
Total Modifications	$ 127	$ 2,028	$ 127	$ 2,146
Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan		4		4
Pre-Modification Recorded Balance		$ 1,949		$ 1,949
Total Modifications		$ 1,946		$ 1,946
Real estate | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan		2		2
Pre-Modification Recorded Balance		$ 1,696		$ 1,696
Total Modifications		$ 1,695		$ 1,695
Real estate | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan	1	2	1	2
Pre-Modification Recorded Balance	$ 31	$ 253	$ 31	$ 253
Total Modifications	$ 27	$ 251	$ 27	$ 251
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan	1	2	1	4
Pre-Modification Recorded Balance	$ 100	$ 80	$ 100	$ 208
Total Modifications	100	$ 80	100	$ 198
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans Restructured | loan		1		1
Pre-Modification Recorded Balance		$ 2		$ 2
Total Modifications		2		2
Term Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	127	1,844	127	1,962
Term Concessions | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		1,764		1,764
Term Concessions | Real estate | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		1,695		1,695
Term Concessions | Real estate | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	27	69	27	69
Term Concessions | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	100	80	100	198
Term Concessions | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		0		0
Interest Rate Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	0	182	0	182
Interest Rate Concessions | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		182		182
Interest Rate Concessions | Real estate | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		0		0
Interest Rate Concessions | Real estate | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	0	182	0	182
Interest Rate Concessions | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	0	0	0	0
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	2	0	2
Combination of Term and Rate Concessions | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		0		0
Combination of Term and Rate Concessions | Real estate | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		0		0
Combination of Term and Rate Concessions | Real estate | Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	0	0	0	0
Combination of Term and Rate Concessions | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications	$ 0	0	$ 0	0
Combination of Term and Rate Concessions | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Modifications		$ 2		$ 2

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	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 1,486,543		$ 1,004,674
Securities carried at fair value through income	10,876		11,554
Loans held for sale	63,001		136,026
Loans at fair value	0		17,011
Mortgage servicing rights	16,000	$ 16,081	13,660	$ 14,322	$ 15,235	$ 20,697
State and municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	408,733		442,185
Securities carried at fair value through income	10,876		11,554
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	78,827		65,938
Commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	39,438		11,080
Residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	555,351		214,951
Commercial collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	10,437
Residential collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	210,431		195,343
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	84,825		74,328
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	1,486,543		1,004,674
Securities carried at fair value through income	10,876		11,554
Loans held for sale	63,001		136,026
Loans at fair value			17,011
Mortgage servicing rights	16,000		13,660
Other assets - derivatives	14,881		23,694
Total recurring fair value measurements - assets	1,591,301		1,206,619
Other liabilities - derivatives	(14,679)		(23,020)
Total recurring fair value measurements - liabilities	(14,679)		(23,020)
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	93,047		0
Securities carried at fair value through income	0		0
Loans held for sale	0		0
Loans at fair value			0
Mortgage servicing rights	0		0
Other assets - derivatives	0		0
Total recurring fair value measurements - assets	93,047		0
Other liabilities - derivatives	0		0
Total recurring fair value measurements - liabilities	0		0
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	1,351,397		960,609
Securities carried at fair value through income	0		0
Loans held for sale	63,001		136,026
Loans at fair value			0
Mortgage servicing rights	0		0
Other assets - derivatives	14,881		23,694
Total recurring fair value measurements - assets	1,429,279		1,120,329
Other liabilities - derivatives	(14,679)		(23,020)
Total recurring fair value measurements - liabilities	(14,679)		(23,020)
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	42,099		44,065
Securities carried at fair value through income	10,876		11,554
Loans held for sale	0		0
Loans at fair value			17,011
Mortgage servicing rights	16,000		13,660
Other assets - derivatives	0		0
Total recurring fair value measurements - assets	68,975		86,290
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	408,733		442,185
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	366,634		398,120
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	42,099		44,065
Fair Value, Measurements, Recurring | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	78,827		65,938
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	78,827		65,938
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. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	93,047
Fair Value, Measurements, Recurring | U.S. treasury securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	93,047
Fair Value, Measurements, Recurring | U.S. treasury securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0
Fair Value, Measurements, Recurring | U.S. treasury securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0
Fair Value, Measurements, Recurring | U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	5,454		849
Fair Value, Measurements, Recurring | U.S. government agency 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 | U.S. government agency securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	5,454		849
Fair Value, Measurements, Recurring | U.S. government 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	39,438		11,080
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	39,438		11,080
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	555,351		214,951
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	555,351		214,951
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	10,437
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	10,437
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	210,431		195,343
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	210,431		195,343
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, Measurements, Recurring | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	84,825		74,328
Fair Value, Measurements, Recurring | Asset-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 | Asset-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	84,825		74,328
Fair Value, Measurements, Recurring | Asset-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 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	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Loans at Fair Value
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	$ 17,011	$ 17,670
Gain loss recognized in AOCI	0	0
Purchases, issuances, sales and settlements:
Originations	0	0
Purchases	0	0
Sales	0	0
Settlements	(16,760)	(416)
Balance at end of period	0	17,284
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	(251)	30
MSRs
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	13,660	20,697
Gain loss recognized in AOCI	0	0
Purchases, issuances, sales and settlements:
Originations	4,282	4,305
Purchases	0	0
Sales	0	0
Settlements	0	0
Balance at end of period	16,000	14,322
MSRs | Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	(1,942)	(10,680)
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	44,065	38,173
Gain loss recognized in AOCI	(746)	1,352
Purchases, issuances, sales and settlements:
Originations	0	0
Purchases	1,000	1,598
Sales	0	(140)
Settlements	(2,220)	(1,884)
Balance at end of period	42,099	39,099
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	11,554	11,513
Gain loss recognized in AOCI	0	0
Purchases, issuances, sales and settlements:
Originations	0	0
Purchases	0	0
Sales	0	0
Settlements	(265)	(250)
Balance at end of period	10,876	11,813
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	$ (413)	$ 550

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Assumptions Used to Value Mortgage Servicing Rights (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Prepayment speeds	9.22%	11.82%
Discount rates	9.00%	7.83%
Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Prepayment speeds	37.69%	37.95%
Discount rates	10.50%	9.09%
Weighted Average
Fair Value, Option, Quantitative Disclosures [Line Items]
Prepayment speeds	16.24%	22.08%
Discount rates	9.45%	8.27%

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Difference Between Fair Value and Unpaid Principal Balance (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	$ 73,877,000	$ 164,591,000
Aggregate Unpaid Principal Balance	72,377,000	157,333,000
Difference	1,500,000	7,258,000
Nonaccrual mortgage loans held for sale recorded at fair value	2,100,000	681,000
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	63,001,000	136,026,000
Aggregate Unpaid Principal Balance	62,024,000	129,955,000
Difference	977,000	6,071,000
Commercial real estate LHFI
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value		17,011,000
Aggregate Unpaid Principal Balance		16,760,000
Difference		251,000
Securities carried at fair value through income
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	10,876,000	11,554,000
Aggregate Unpaid Principal Balance	10,353,000	10,618,000
Difference	523,000	936,000
U.S. government agency securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans, 90 days or more past due	$ 1,600,000	$ 473,000

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		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Mortgage banking revenue
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	$ (791)	$ (221)	$ (5,094)	$ 3,401
Other income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	(223)	(267)	(664)	580
Other income | Loans at fair value held for investment
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	(126)	(103)	(251)	30
Other income | Securities carried at fair value through income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	(97)	(164)	(413)	550
Noninterest income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	$ (1,014)	$ (488)	$ (5,758)	$ 3,981

Fair Value of Financial Instr_8

Fair Value of Financial Instruments - Narrative (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value option	$ 0	$ 0
Non-marketable equity securities held in other financial institutions	45,144,000	62,586,000
Impairment recorded on investments in equity securities that do not have readily determinable fair values	0
Liability to repurchase past due GNMA loans	47,000,000	55,500,000
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of impaired loans	3,800,000	12,300,000
Foreclosed assets	4,000,000	$ 1,600,000
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3 | Residential real estate | Real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans in the process of foreclosure	$ 5,900,000
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	0.83%	0.83%
Credit spread, loans held-for-investment		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%

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	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	$ 40,415	$ 41,205
Carrying Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	351,965	377,214
Carrying Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non-marketable equity securities held in other financial institutions	45,144	62,586
Accrued interest and loan fees receivable	23,806	27,146
Deposits	6,158,768	5,751,315
FHLB advances and other borrowings	309,152	984,608
Subordinated debentures	157,357	157,181
Accrued interest payable	2,994	3,556
Carrying Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	37,702	38,128
LHFI , net	5,117,341	5,621,092
Estimated Fair Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	351,965	377,214
Estimated Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non-marketable equity securities held in other financial institutions	45,144	62,586
Accrued interest and loan fees receivable	23,806	27,146
Deposits	6,160,571	5,756,312
FHLB advances and other borrowings	304,501	991,943
Subordinated debentures	156,569	156,395
Accrued interest payable	2,994	3,556
Estimated Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	40,415	41,205
LHFI , net	$ 5,092,269	$ 5,802,744

Mortgage Banking - Mortgage Ban

Mortgage Banking - Mortgage Banking Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Mortgage Banking [Abstract]
Origination	$ 349	$ 492	$ 1,101	$ 1,391
Gain on sale of loans held for sale	1,984	5,613	10,014	8,578
Originations of MSRs	1,089	1,780	4,282	4,305
Servicing	1,501	1,526	4,537	4,642
Total gross mortgage revenue	4,923	9,411	19,934	18,916
MSR valuation adjustments, net	(1,170)	(2,693)	(1,942)	(10,680)
Mortgage HFS and pipeline fair value adjustment	(1,046)	540	(6,201)	7,337
MSR hedge impact	21	2,265	(1,721)	7,436
Mortgage banking revenue	$ 2,728	$ 9,523	$ 10,070	$ 23,009

Mortgage Banking - Activity in

Mortgage Banking - Activity in Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	$ 16,081	$ 15,235	$ 13,660	$ 20,697
Originations of MSRs	1,089	1,780	4,282	4,305
Valuation adjustments, net	(1,170)	(2,693)	(1,942)	(10,680)
Balance at end of period	$ 16,000	$ 14,322	$ 16,000	$ 14,322

Mortgage Banking - Narrative (D

Mortgage Banking - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Mortgage Banking [Abstract]
Annual servicing fee income rate	0.28%
Reserve for mortgage loan servicing putback expenses	$ 365	$ 311
Liability to repurchase past due GNMA loans	$ 47,000	$ 55,500

Borrowings - Summary of Borrowe

Borrowings - Summary of Borrowed Funds (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances and other borrowings	$ 309,152	$ 984,608
FHLB
Debt Instrument, Redemption [Line Items]
Net amounts available under the blanket floating lien	837,700	456,900
GNMA repurchase liability
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances and other borrowings	46,955	55,485
FHLB advances
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances and other borrowings	257,061	270,715
Subordinated debentures, net
Debt Instrument, Redemption [Line Items]
Subordinated debentures, net	157,357	157,181
Overnight repurchase agreements with depositors
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances and other borrowings	5,136	8,408
FHLB advances
Debt Instrument, Redemption [Line Items]
Federal Home Loan Bank ("FHLB") advances and other borrowings	$ 0	$ 650,000

Derivative Financial Instrume_3

Derivative Financial Instruments - Fair Value of Derivative Instruments on the Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Notional Amounts	$ 992,042	$ 1,030,766
Fair Values	474	1,380
Interest Rate Swaps | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amounts	363,738	347,096
Fair Values	(13,893)	(21,321)
Interest Rate Swaps | Derivatives Not Designated as Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amounts	348,353	326,542
Fair Values	13,160	20,207
Risk Participation Derivative | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amounts	63,374	63,374
Fair Values	(7)	(18)
Forward Commitments to Purchase | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amounts	85,000	107,000
Fair Values	(507)	(317)
Forward Commitments to Sell | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Fair Values		(658)
Forward Commitments to Sell | Derivatives Not Designated as Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amounts	76,620	107,200
Fair Values	264
Interest Rate-Lock Commitments | Derivatives Not Designated as Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amounts	54,957	79,554
Fair Values	1,457	3,487
Cash Flow Hedging | Interest Rate Swaps | Derivatives Designated as Cash Flow Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amounts	21,000	21,000
Fair Values	$ (254)	$ (706)

Derivative Financial Instrume_4

Derivative Financial Instruments - Weighted-average Rates Paid and Received (Details) - Interest Rate Swaps	Sep. 30, 2021
Cash flow hedges | Paid
Derivative [Line Items]
Weighted-Average Interest Rate	4.81%
Cash flow hedges | Received
Derivative [Line Items]
Weighted-Average Interest Rate	2.85%
Non-Hedging | Financial Institution | Paid
Derivative [Line Items]
Weighted-Average Interest Rate	4.16%
Non-Hedging | Financial Institution | Received
Derivative [Line Items]
Weighted-Average Interest Rate	2.54%
Non-Hedging | Customer | Paid
Derivative [Line Items]
Weighted-Average Interest Rate	2.55%
Non-Hedging | Customer | Received
Derivative [Line Items]
Weighted-Average Interest Rate	4.16%

Derivative Financial Instrume_5

Derivative Financial Instruments - Gains and Losses Recognized on Derivative Instruments Not Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives not designated as hedging instruments	$ (984)	$ 1,286	$ (2,471)	$ 5,491
Other non-interest income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives not designated as hedging instruments	$ 75	$ 157	$ 409	$ (472)

Derivative Financial Instrume_6

Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash collateral on deposit	$ 17.5	$ 22.2

Stock and Incentive Compensat_3

Stock and Incentive Compensation Plans - Narrative (Details) - USD ($)	Apr. 28, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Common stock issued (in shares)		0		0
Stock compensation expense		$ 559,000	$ 550,000	$ 1,644,000	$ 1,659,000
Expiration period				20 years
Minimum
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Service period in which time-vested awards are earned				1 year
Maximum
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Service period in which time-vested awards are earned				5 years
2012 Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Maximum number of common stock available for issuance (in shares)		838,072		838,072
Employee Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Maximum number of common stock available for issuance (in shares)	1,000,000
Stock repurchase program, discount percentage	15.00%
Offering period	1 year
Stock compensation expense		$ 82,000	0	$ 109,000	0
Stock Options
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock compensation expense		0	$ 0	0	$ 0
RSA
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Unrecognized compensation cost		1,500,000		$ 1,500,000
Unrecognized compensation cost weighted average period for recognition				1 year 7 months 6 days
RSU
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Unrecognized compensation cost		$ 2,700,000		$ 2,700,000
Unrecognized compensation cost weighted average period for recognition				2 years 10 months 24 days

Stock and Incentive Compensat_4

Stock and Incentive Compensation Plans - Share-based Compensation Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock compensation expense	$ 559	$ 550	$ 1,644	$ 1,659
Related tax benefits recognized in net income	117	116	345	348
RSA & RSU
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock compensation expense	477	550	1,535	1,659
ESPP
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock compensation expense	$ 82	$ 0	$ 109	$ 0

Stock and Incentive Compensat_5

Stock and Incentive Compensation Plans - Time-vested Award Activity (Details) - $ / shares	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
RSA
Shares
Nonvested shares, beginning balance (in shares)	103,359	149,449
Granted (in shares)	13,460	30,638
Vested (in shares)	(55,827)	(52,289)
Forfeited (in shares)	(946)	(4,129)
Nonvested shares, ending balance (in shares)	60,046	123,669
Weighted Average Grant-Date Fair Value
Nonvested shares, beginning balance (in dollars per share)	$ 31.51	$ 35.15
Granted (in dollars per share)	42.26	20.14
Vested (in dollars per share)	29.90	33.39
Forfeited (in dollars per share)	24.69	37.14
Nonvested shares, ending balance (in dollars per share)	$ 35.52	$ 32.11
RSU
Shares
Nonvested shares, beginning balance (in shares)	0	0
Granted (in shares)	70,573	0
Nonvested shares, ending balance (in shares)	70,573	0
Weighted Average Grant-Date Fair Value
Nonvested shares, beginning balance (in dollars per share)	$ 0	$ 0
Granted (in dollars per share)	40.40	0
Nonvested shares, ending balance (in dollars per share)	$ 40.40	$ 0

Stock and Incentive Compensat_6

Stock and Incentive Compensation Plans - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Number of Shares
Outstanding at beginning of period (in shares)	224,000	254,000	254,000
Exercised (in shares)	(14,800)	(30,000)
Outstanding at end of period (in shares)	209,200	224,000	224,000	254,000
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 10.86	$ 10.55	$ 10.55
Exercised (in dollars per share)	9.89	8.25
Outstanding at end of period (in dollars per share)	$ 10.93	$ 10.86	$ 10.86	$ 10.55
Weighted average remaining contractual term (in years)			4 years 11 months 1 day	5 years 9 months 21 days
Weighted average remaining contractual term, exercisable (in years)	4 years 6 months 18 days	5 years 2 months 1 day
Aggregate Intrinsic Value			$ 3,789	$ 6,932
Aggregate intrinsic value, exercisable	$ 6,574	$ 2,353

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	$ 688,235	$ 656,355	$ 647,150	$ 614,781	$ 606,631	$ 599,262	$ 647,150	$ 599,262
Net change	(7,042)	6,729	(13,464)	1,385	4,791	9,489	(13,777)	15,665
Stockholders' equity, ending balance	705,667	688,235	656,355	627,637	614,781	606,631	705,667	627,637
Unrealized Gain (Loss) on AFS Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance			26,206			6,412	26,206	6,412
Net change							(14,135)	16,240
Stockholders' equity, ending balance	12,071			22,652			12,071	22,652
Unrealized (Loss) Gain on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance			(557)			(79)	(557)	(79)
Net change							358	(575)
Stockholders' equity, ending balance	(199)			(654)			(199)	(654)
Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Stockholders' equity, beginning balance	18,914	12,185	25,649	20,613	15,822	6,333	25,649	6,333
Net change	(7,042)	6,729	(13,464)	1,385	4,791	9,489
Stockholders' equity, ending balance	$ 11,872	$ 18,914	$ 12,185	$ 21,998	$ 20,613	$ 15,822	$ 11,872	$ 21,998

Capital and Regulatory Matter_2

Capital and Regulatory Matters - Narrative (Details) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2021USD ($)$ / sharesshares	Mar. 31, 2020USD ($)	Sep. 30, 2021USD ($)shares	Sep. 30, 2021USD ($)	Dec. 31, 2020USD ($)shares
Resale Agreement Counterparty [Line Items]
Benefit to capital risk-weighted assets capital ratio, basis point				0.0018
Repurchase of common stock (in shares) | shares	37,568		0
Buyback program at a price per share (in dollars per share) | $ / shares	$ 33.42
Repurchase of common stock, value	$ 1,256	$ 723
Stock repurchase, cumulative shares (in shares) | shares					330,868
Stock repurchase, cumulative value					$ 10,800
Repurchased amount			$ 28,000	$ 28,000
Origin Bank | Origin Bank
Resale Agreement Counterparty [Line Items]
Aggregate dividends without prior regulatory approval			$ 87,600	$ 87,600

Capital and Regulatory Matter_3

Capital and Regulatory Matters - Actual Capital Amounts and Ratios (Details) $ in Thousands	Sep. 30, 2021USD ($)	Dec. 31, 2020USD ($)
Origin Bancorp, Inc.
Common Equity Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 673,003	$ 604,306
Actual, ratio	0.1123	0.0995
Minimum capital required, amount	$ 419,630	$ 425,012
Minimum capital required, ratio	7.00%	7.00%
Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 682,403	$ 613,682
Actual, ratio	0.1138	0.1011
Minimum capital required, amount	$ 509,551	$ 516,107
Minimum capital required, ratio	0.0850	0.0850
Total Capital to Risk-Weighted Assets
Actual, amount	$ 893,412	$ 837,058
Actual, ratio	0.1490	0.1379
Minimum capital required, amount	$ 629,446	$ 637,539
Minimum capital required, ratio	0.1050	0.1050
Leverage Ratio
Actual, amount	$ 682,403	$ 613,682
Actual, ratio	0.0918	0.0862
Minimum capital required, amount	$ 297,379	$ 284,771
Minimum capital required, ratio	0.0400	0.0400
Origin Bank | Origin Bank
Common Equity Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 701,939	$ 637,863
Actual, ratio	0.1179	0.1053
Minimum capital required, amount	$ 416,719	$ 424,010
Minimum capital required, ratio	7.00%	7.00%
Well capitalized, amount	$ 386,953	$ 393,724
Well capitalized, ratio	6.50%	6.50%
Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 701,939	$ 637,863
Actual, ratio	0.1179	0.1053
Minimum capital required, amount	$ 506,016	$ 514,870
Minimum capital required, ratio	0.0850	0.0850
Well capitalized, amount	$ 476,250	$ 484,583
Well capitalized, ratio	0.0800	0.0800
Total Capital to Risk-Weighted Assets
Actual, amount	$ 834,307	$ 782,503
Actual, ratio	0.1401	0.1292
Minimum capital required, amount	$ 625,078	$ 636,019
Minimum capital required, ratio	0.1050	0.1050
Well capitalized, amount	$ 595,313	$ 605,732
Well capitalized, ratio	0.1000	0.1000
Leverage Ratio
Actual, amount	$ 701,939	$ 637,863
Actual, ratio	0.0948	0.0899
Minimum capital required, amount	$ 296,152	$ 283,842
Minimum capital required, ratio	0.0400	0.0400
Well capitalized, amount	$ 370,190	$ 354,802
Well capitalized, ratio	0.0500	0.0500

Commitments and Contingencies -

Commitments and Contingencies - Off-Balance Sheet Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instrument	$ 1,567,440	$ 1,341,501
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instrument	$ 54,721	$ 42,911

Commitments and Contingencies_2

Commitments and Contingencies - Narrative (Details)	Sep. 30, 2021USD ($)loan	Dec. 31, 2020USD ($)loan
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Credit card guarantees	$ 225,000	$ 200,000
Lending-related Commitments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Reserve for lending related commitments	$ 2,300,000	$ 2,300,000
Letter of credit | FHLB
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of instruments | loan	45	35
Maximum borrowing capacity	$ 613,000,000	$ 527,400,000

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event - USD ($)	Oct. 29, 2021	Oct. 27, 2021
Lincoln Agency, LLC
Subsequent Event [Line Items]
Percentage of interests acquired		62.00%
Percentage of equity interests held just prior to business combination		38.00%
Percentage of interests owned after business combination		100.00%
Cash consideration		$ 5,300,000
Equity interests issued and issuable		$ 5,300,000
Line of credit | Revolving credit loans
Subsequent Event [Line Items]
Maximum borrowing capacity	$ 100,000,000
Initial maximum loan amount	50,000,000
Incremental revolving loan maximum	$ 50,000,000
Debt instrument, option to extend, term	364 days
Line of credit | Revolving credit loans | SOFR
Subsequent Event [Line Items]
Basis spread on variable rate	3.35%

Uncategorized Items - obnk-2021

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2016-13 [Member]