Origin Bancorp (OBK) 10-Q 7 Nov 23 2023 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2023	Oct. 31, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
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	OBK
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		30,906,716
Amendment Flag	false
Current Fiscal Year Focus	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity CIK	0001516912

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Assets
Cash and due from banks	$ 141,705	$ 150,180
Interest-bearing deposits in banks	163,573	208,792
Total cash and cash equivalents	305,278	358,972
Securities:
Available for sale	1,290,839	1,641,484
Held to maturity, net allowance for credit losses of $890 and $899 at September 30, 2023, and December 31, 2022, respectively (fair value of $11,005 and $11,970 at September 30, 2023, and December 31, 2022, respectively)	10,790	11,275
Securities carried at fair value through income	6,772	6,368
Total securities	1,308,401	1,659,127
Non-marketable equity securities held in other financial institutions	63,842	67,378
Loans held for sale ($14,944 and $25,389 at fair value at September 30, 2023, and December 31, 2022, respectively)	14,944	49,957
Loans, net of allowance for credit losses of $95,177 and $87,161 at September 30, 2023, and December 31, 2022, respectively	7,472,886	7,002,861
Premises and equipment, net	111,700	100,201
Mortgage servicing rights	19,189	20,824
Cash surrender value of bank-owned life insurance	39,688	39,040
Goodwill	128,679	128,679
Other intangible assets, net	42,460	49,829
Accrued interest receivable and other assets	226,236	209,199
Total assets	9,733,303	9,686,067
Liabilities and Stockholders’ Equity
Noninterest-bearing deposits	2,008,671	2,482,475
Interest-bearing deposits	4,728,263	4,505,940
Time deposits	1,637,554	787,287
Total deposits	8,374,488	7,775,702
Federal Home Loan Bank (“FHLB”) advances, repurchase obligations and other borrowings	12,213	639,230
Subordinated indebtedness, net	196,825	201,765
Accrued expenses and other liabilities	150,832	119,427
Total liabilities	8,734,358	8,736,124
Stockholders’ equity:
Common stock ($5.00 par value; 50,000,000 shares authorized; 30,906,716 and 30,746,600 shares issued at September 30, 2023, and December 31, 2022, respectively)	154,534	153,733
Additional paid‑in capital	525,434	520,669
Retained earnings	491,706	435,416
Accumulated other comprehensive loss	(172,729)	(159,875)
Total stockholders’ equity	998,945	949,943
Total liabilities and stockholders’ equity	$ 9,733,303	$ 9,686,067

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Held to maturity, allowance for credit losses	$ 890	$ 899
Held to maturity, fair value	11,005	11,970
Loans held for sale	14,944	25,389
Allowance for credit losses	$ 95,177	$ 87,161
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)	30,906,716	30,746,600

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Interest and dividend income
Interest and fees on loans	$ 121,204	$ 79,803	$ 343,142	$ 186,972
Investment securities-taxable	8,194	7,801	24,658	20,030
Investment securities-nontaxable	1,281	2,151	3,974	5,044
Interest and dividend income on assets held in other financial institutions	4,772	1,482	16,132	3,262
Total interest and dividend income	135,451	91,237	387,906	215,308
Interest expense
Interest-bearing deposits	55,599	7,734	136,686	13,689
FHLB advances and other borrowings	3,207	2,717	17,038	5,203
Subordinated indebtedness	2,515	2,263	7,614	5,887
Total interest expense	61,321	12,714	161,338	24,779
Net interest income	74,130	78,523	226,568	190,529
Provision for credit losses	3,515	16,942	14,018	20,067
Net interest income after provision for credit losses	70,615	61,581	212,550	170,462
Noninterest income
Mortgage banking revenue (loss)	892	(929)	4,075	5,521
Other fee income	944	1,162	2,856	2,398
Swap fee income	366	25	1,081	165
(Loss) gain on sales of securities, net	(7,173)	1,664	(7,029)	1,664
Limited partnership investment (loss) income	(425)	112	(128)	31
Gain (loss) on sales and disposals of other assets, net	45	70	(3)	(209)
Other income	12,406	1,219	15,734	3,454
Total noninterest income	18,119	13,723	50,139	43,845
Noninterest expense
Salaries and employee benefits	34,624	31,834	102,888	85,632
Occupancy and equipment, net	6,790	5,399	19,871	14,340
Data processing	2,775	2,689	8,528	7,588
Intangible asset amortization	2,264	1,872	7,369	2,934
Office and operations	2,868	2,121	7,887	5,843
Professional services	1,409	1,188	4,491	2,668
Loan-related expenses	1,220	1,599	3,941	4,421
Advertising and marketing	1,371	1,196	4,296	2,926
Electronic banking	1,384	1,087	3,609	2,900
Franchise tax expense	520	957	2,392	2,565
Regulatory assessments	1,913	877	4,596	2,305
Communications	390	279	1,181	812
Merger-related expense	0	3,614	0	4,992
Other expenses	1,135	1,529	3,261	3,239
Total noninterest expense	58,663	56,241	174,310	143,165
Income before income tax expense	30,071	19,063	88,379	71,142
Income tax expense	5,758	2,820	18,004	12,905
Net income	$ 24,313	$ 16,243	$ 70,375	$ 58,237
Basic earnings per common share (in dollars per share)	$ 0.79	$ 0.57	$ 2.29	$ 2.31
Diluted earnings per common share (in dollars per share)	$ 0.79	$ 0.57	$ 2.28	$ 2.30
Insurance commission and fee income
Noninterest income
Revenue from contracts with customers	$ 6,443	$ 5,666	$ 19,639	$ 17,815
Service charges and fees
Noninterest income
Revenue from contracts with customers	$ 4,621	$ 4,734	$ 13,914	$ 13,006

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 24,313	$ 16,243	$ 70,375	$ 58,237
Securities available for sale and transferred securities:
Net unrealized holding gain (loss) arising during the period	(32,357)	(73,757)	(23,355)	(228,605)
Reclassification adjustment for net (gain) loss included in net income	7,173	(1,664)	7,029	(1,664)
Change in the net unrealized gain (loss) on available for sale investment securities, before tax	(25,184)	(75,421)	(16,326)	(230,269)
Net gain realized as a yield adjustment in interest on transferred investment securities	(3)	(3)	(8)	(9)
Change in the net unrealized gain (loss) on investment securities, before tax	(25,187)	(75,424)	(16,334)	(230,278)
Income tax expense (benefit) related to net unrealized gain (loss) arising during the period	(5,289)	(15,839)	(3,430)	(48,359)
Change in the net unrealized gain (loss) on investment securities, net of tax	(19,898)	(59,585)	(12,904)	(181,919)
Cash flow hedges:
Net unrealized gain arising during the period	167	438	1,078	1,167
Reclassification adjustment for net (gain) loss included in net income	(106)	19	(1,014)	(45)
Change in the net unrealized gain on cash flow hedges, before tax	61	419	64	1,212
Income tax expense related to net unrealized gain on cash flow hedges	13	88	14	255
Change in net unrealized net gain on cash flow hedges, net of tax	48	331	50	957
Other comprehensive income (loss), net of tax	(19,850)	(59,254)	(12,854)	(180,962)
Comprehensive income (loss)	$ 4,463	$ (43,011)	$ 57,521	$ (122,725)

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (loss)
Beginning balance (in shares) at Dec. 31, 2021		23,746,502
Beginning balance at Dec. 31, 2021	$ 730,211	$ 118,733	$ 242,114	$ 363,635	$ 5,729
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20,683			20,683
Other comprehensive income (loss), net of tax	(71,619)				(71,619)
Stock based compensation expense	737		737
Exercise of stock options, net of shares withheld (in shares)		2,246
Exercise of stock options, net of shares withheld	(51)	$ 11	(62)
Dividends declared - common stock	(3,096)			(3,096)
Ending balance (in shares) at Mar. 31, 2022		23,748,748
Ending balance at Mar. 31, 2022	676,865	$ 118,744	242,789	381,222	(65,890)
Beginning balance (in shares) at Dec. 31, 2021		23,746,502
Beginning balance at Dec. 31, 2021	730,211	$ 118,733	242,114	363,635	5,729
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	58,237
Other comprehensive income (loss), net of tax	$ (180,962)
Exercise of stock options, net of shares withheld (in shares)	60,687
Ending balance (in shares) at Sep. 30, 2022		30,661,734
Ending balance at Sep. 30, 2022	$ 907,024	$ 153,309	518,376	410,572	(175,233)
Beginning balance (in shares) at Mar. 31, 2022		23,748,748
Beginning balance at Mar. 31, 2022	676,865	$ 118,744	242,789	381,222	(65,890)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	21,311			21,311
Other comprehensive income (loss), net of tax	(50,089)				(50,089)
Stock based compensation expense	841		841
Exercise of stock options, net of shares withheld (in shares)		20,000
Exercise of stock options, net of shares withheld	165	$ 100	65
Stock based compensation shares vested and distributed, net of shares withheld (in shares)		12,840
Stock based compensation shares vested and distributed, net of shares withheld	0	$ 64	(64)
Shares issued under employee stock purchase program (in shares)		26,089
Shares issued under employee stock purchase program	867	$ 130	737
Dividends declared - common stock	(3,587)			(3,587)
Ending balance (in shares) at Jun. 30, 2022		23,807,677
Ending balance at Jun. 30, 2022	646,373	$ 119,038	244,368	398,946	(115,979)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	16,243			16,243
Other comprehensive income (loss), net of tax	(59,254)				(59,254)
Stock based compensation expense	970		970
Exercise of stock options, net of shares withheld (in shares)		35,887
Exercise of stock options, net of shares withheld	965	$ 180	785
Stock based compensation shares vested and distributed, net of shares withheld (in shares)		23,260
Stock based compensation shares vested and distributed, net of shares withheld	0	$ 116	(116)
Options assumed - BTH Merger	13,687		13,687
Stock issuance - BTH Merger (in shares)		6,794,910
Stock issuance - BTH Merger	292,657	$ 33,975	258,682
Dividends declared - common stock	(4,617)			(4,617)
Ending balance (in shares) at Sep. 30, 2022		30,661,734
Ending balance at Sep. 30, 2022	907,024	$ 153,309	518,376	410,572	(175,233)
Beginning balance (in shares) at Dec. 31, 2022		30,746,600
Beginning balance at Dec. 31, 2022	949,943	$ 153,733	520,669	435,416	(159,875)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	24,302			24,302
Other comprehensive income (loss), net of tax	21,394				21,394
Stock based compensation expense	1,391		1,391
Exercise of stock options, net of shares withheld (in shares)		24,503
Exercise of stock options, net of shares withheld	324	$ 122	202
Stock based compensation shares vested and distributed, net of shares withheld (in shares)		9,750
Stock based compensation shares vested and distributed, net of shares withheld	(89)	$ 49	(138)
Dividends declared - common stock	(4,678)			(4,678)
Ending balance (in shares) at Mar. 31, 2023		30,780,853
Ending balance at Mar. 31, 2023	992,587	$ 153,904	522,124	455,040	(138,481)
Beginning balance (in shares) at Dec. 31, 2022		30,746,600
Beginning balance at Dec. 31, 2022	949,943	$ 153,733	520,669	435,416	(159,875)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	70,375
Other comprehensive income (loss), net of tax	$ (12,854)
Exercise of stock options, net of shares withheld (in shares)	55,897
Ending balance (in shares) at Sep. 30, 2023		30,906,716
Ending balance at Sep. 30, 2023	$ 998,945	$ 154,534	525,434	491,706	(172,729)
Beginning balance (in shares) at Mar. 31, 2023		30,780,853
Beginning balance at Mar. 31, 2023	992,587	$ 153,904	522,124	455,040	(138,481)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	21,760			21,760
Other comprehensive income (loss), net of tax	(14,398)				(14,398)
Stock based compensation expense	1,160		1,160
Exercise of stock options, net of shares withheld (in shares)		15,492
Exercise of stock options, net of shares withheld	327	$ 78	249
Stock based compensation shares vested and distributed, net of shares withheld (in shares)		23,647
Stock based compensation shares vested and distributed, net of shares withheld	0	$ 118	(118)
Shares issued under employee stock purchase program (in shares)		46,213
Shares issued under employee stock purchase program	1,118	$ 231	887
Dividends declared - common stock	(4,695)			(4,695)
Ending balance (in shares) at Jun. 30, 2023		30,866,205
Ending balance at Jun. 30, 2023	997,859	$ 154,331	524,302	472,105	(152,879)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	24,313			24,313
Other comprehensive income (loss), net of tax	(19,850)				(19,850)
Stock based compensation expense	1,335		1,335
Exercise of stock options, net of shares withheld (in shares)		13,123
Exercise of stock options, net of shares withheld	217	$ 66	151
Stock based compensation shares vested and distributed, net of shares withheld (in shares)		27,388
Stock based compensation shares vested and distributed, net of shares withheld	(217)	$ 137	(354)
Dividends declared - common stock	(4,712)			(4,712)
Ending balance (in shares) at Sep. 30, 2023		30,906,716
Ending balance at Sep. 30, 2023	$ 998,945	$ 154,534	$ 525,434	$ 491,706	$ (172,729)

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022
Statement of Stockholders' Equity [Abstract]
Common stock dividends declared (in dollars per share)	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.13

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net income	$ 70,375	$ 58,237
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	14,018	20,067
Depreciation and amortization	13,333	7,809
Net amortization on securities	5,309	7,079
Accretion of net premium/discount on purchased loans	(2,067)	(1,187)
Amortization of investments in tax credit funds	1,368	951
Loss (gain) on sale of securities, net	7,029	(1,664)
Deferred income tax expense	14,499	11,356
Stock-based compensation expense	3,886	2,548
Originations of mortgage loans held for sale	(148,866)	(224,093)
Proceeds from mortgage loans held for sale	127,574	222,638
Gain on mortgage loans held for sale, including origination of mortgage servicing rights	(3,036)	(6,403)
Mortgage servicing rights valuation adjustment	485	(2,409)
Net loss on disposals of premises and equipment and sale of other real estate owned	2	3
Increase in the cash surrender value of life insurance	(648)	(533)
Gain on equity securities without a readily determinable fair value	(10,097)	0
Net losses on sales and write-downs of other real estate owned	1	206
Net change in operating leases	(793)	24
Increase in other assets	(8,718)	(7,535)
Increase in other liabilities	16,821	6,717
Net cash provided by operating activities	100,475	93,811
Cash flows from investing activities:
Cash acquired in business combination	0	69,953
Purchases of securities available for sale	(751)	(557,151)
Maturities and pay downs of securities available for sale	107,679	118,189
Proceeds from sales and calls of securities available for sale	214,302	484,421
Purchase of securities held to maturity	0	(7,000)
Maturities, pay downs and calls of securities held to maturity	486	17,750
Pay downs of securities carried at fair value	285	275
Net redemption (purchases) of non-marketable equity securities held in other financial institutions	15,025	(2,664)
Originations of mortgage warehouse loans	(5,048,595)	(7,638,507)
Proceeds from pay-offs of mortgage warehouse loans	5,047,169	7,846,760
Net increase in loans, excluding mortgage warehouse and loans held for sale	(449,804)	(609,608)
Return of capital and other distributions from limited partnership investments	1,591	6,657
Capital calls on limited partnership investments	(2,156)	(97)
Purchase of low-income housing tax credit investments	(538)	0
Purchases of premises and equipment	(17,514)	(5,636)
Proceeds from sales of premises and equipment	49	0
Net cash used in investing activities	(132,772)	(276,658)
Cash flows from financing activities:
Net increase (decrease) in deposits	598,786	(359,825)
Repayments on long-term FHLB advances	(199)	(193)
Proceeds from short-term FHLB advances	5,890,000	5,960,000
Repayments on short-term FHLB advances	(6,440,000)	(5,810,000)
Repurchase of subordinated debentures, net	(4,729)	0
Net decrease in other short-term borrowings	(30,000)	0
Net decrease in securities sold under agreements to repurchase	(22,250)	(2,151)
Dividends paid	(13,912)	(11,263)
Cash received from exercise of stock options	907	1,131
Net cash used in financing activities	(21,397)	(222,301)
Net decrease in cash and cash equivalents	(53,694)	(405,148)
Cash and cash equivalents at beginning of period	358,972	705,618
Cash and cash equivalents at end of period	305,278	300,470
Interest paid	151,130	21,123
Income taxes paid	483	1,204
Significant non-cash transactions:
Real estate acquired in settlement of loans	3,243	665
Decrease in GNMA repurchase obligation	(24,569)	(17,134)
Recognition of operating right-of-use assets	16,225	14,009
Recognition of operating lease liabilities	16,187	14,213
Total assets acquired in BTH merger	0	1,840,340
Total liabilities assumed in BTH merger	0	1,635,196
Common stock issued in BTH merger as consideration	$ 0	$ 292,657

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Sep. 30, 2023
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”), was founded in 1912 in Choudrant, Louisiana. Deeply rooted in Origin’s history is a culture committed to providing personalized, relationship banking to businesses, municipalities, and personal clients to enrich the lives of the people in the communities it serves. Origin provides a broad range of financial services and currently operates 60 banking centers located in Dallas/Fort Worth, East Texas, Houston, North Louisiana and 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 Lincoln Agency, LLC, Lincoln Agency Transportation Insurance, Pulley-White Insurance Agency, Reeves, Coon and Funderburg, Simoneaux & Wallace Agency and Thomas & Farr Agency. 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, 2022, but in the opinion of management, reflect all adjustments (which are of a normal recurring nature) 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. 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 notes 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, 2022, included in the Company’s annual report on Form 10-K (“2022 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 (loss). 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, off-balance sheet commitments 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. Allowance for Credit Losses . Accounting Standards Update (“ASU”) No. 2022-02 eliminated the accounting guidance for troubled debt restructurings (“TDRs”) and enhanced disclosure requirements for certain loan modifications. The Company may provide modifications to borrowers experiencing financial difficulty in the form of principal forgiveness, interest rate reductions, other-than-insignificant payment delays, or term extensions. When principal forgiveness is provided, the amount of forgiveness is charged-off against the allowance for credit losses. In some cases, the Company may provide multiple types of concessions on one loan. The Company will evaluate whether the modification represents a new loan or a continuation of an existing loan. The Company assesses all loan modifications to determine whether they were made to borrowers experiencing financial difficulty. Reclassifications . Certain amounts previously reported have been reclassified to conform to the current presentation. Such reclassifications had no effect on prior year net income or stockholders’ equity. Effect of Recently Adopted 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 (“ASC”) in order to codify 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 U.S. 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 registrants with the first fiscal year ending after December 15, 2021, while Guide 3 was rescinded effective January 1, 2023. Implementation of this ASU did not materially impact the Company’s financial statement disclosures. ASU No. 2021-08, Business Combinations (Topic 805) — Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. The amendments in this Update affect accounting for acquired revenue contracts with customers in a business combination by addressing diversity in practice and inconsistency related to recognition of an acquired contract liability and payment terms and their effect on subsequent revenue recognized by the acquirer. The ASU is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Implementation of this ASU did not materially impact the Company’s financial statements or disclosures. ASU No. 2022-01, Derivatives and Hedging (Topic 815) — Fair Value Hedging - Portfolio Layer Method. The amendments in this Update clarify the accounting for and promote consistency in the reporting of hedge basis adjustments applicable to both a single hedged layer and multiple hedged layers. Additionally, this Update allows entities to elect to apply the portfolio layer method of hedge accounting in accordance with Topic 815. The ASU is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Implementation of this ASU did not materially impact the Company’s financial statements or disclosures. ASU No. 2022-02, Financial Instruments - Credit Losses (Topic 326) — Troubled Debt Restructurings and Vintage Disclosures. The amendments in this Update eliminate the accounting guidance for TDRs by creditors in Subtopic 310-40, Receivables—Troubled Debt Restructurings by Creditors, while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. Specifically, rather than applying the recognition and measurement guidance for TDRs, an entity must apply the loan refinancing and restructuring guidance in paragraphs 310-20-35-9 through 35-11 to determine whether a modification results in a new loan or a continuation of an existing loan. For public business entities, the amendments in this Update require that an entity disclose current-period gross write-offs by year of origination for financing receivables and net investments in leases within the scope of Subtopic 326-20, Financial Instruments—Credit Losses—Measured at Amortized Cost. The ASU is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Implementation of this ASU did not materially impact the Company’s financial statements or disclosures. ASU No. 2022-06, Reference Rate Reform (Topic 848) - Deferral of the Sunset Date of Topic 848 — The amendments in this Update provide temporary relief during the transition period in complying with Update No. 2020-04, Reference Rate Reform (Topic 848) - Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional guidance to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The Board included a sunset provision within Topic 848 based on expectations of when the London Interbank Offered Rate (LIBOR) would cease being published. At the time that Update 2020-04 was issued, the UK Financial Conduct Authority (FCA) had established its intent that it would no longer be necessary to persuade, or compel, banks to submit to LIBOR after December 31, 2021. As a result, the sunset provision was set for December 31, 2022 - 12 months after the expected cessation date of all currencies and tenors of LIBOR. In March 2021, the FCA announced that the intended cessation date of the overnight 1-, 3-, 6-, and 12-month tenors of USD LIBOR would be June 30, 2023, which is beyond the current sunset date of Topic 848. Because the relief in Topic 848 may not cover a period of time during which a significant number of modifications may take place, the amendments in this Update defer the sunset date of Topic 848 from December 31, 2022, to December 31, 2024, after which entities will no longer be permitted to apply the relief in Topic 848. The ASU is effective immediately. Implementation of this ASU did not materially impact the Company's financial statements or disclosures. Effect of Newly Issued But Not Yet Effective Accounting Standards ASU No. 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method — The amendments in this Update allow entities to elect to account for equity investments made primarily for the purpose of receiving income tax credits using the proportional amortization method, regardless of the tax credit program through which the investment earns income tax credits, if certain conditions are met. The amendments in this Update also eliminate certain low income housing tax credits (“LIHTC”)-specific guidance to align the accounting more closely for LIHTCs with the accounting for other equity investments in tax credit structures and require that the delayed equity contribution guidance apply only to tax equity investments accounted for using the proportional amortization method. The ASU is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Implementation of this ASU is not expected to materially impact the Company's financial statements or disclosures.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2023
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 the Company’s stock and incentive compensation plans. 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: 2023 2022 2023 2022 Net income $ 24,313 $ 16,243 $ 70,375 $ 58,237 Denominator: Weighted average common shares outstanding 30,856,649 28,298,984 30,797,399 25,263,681 Dilutive effect of stock-based awards 87,211 182,635 105,823 103,126 Weighted average diluted common shares outstanding 30,943,860 28,481,619 30,903,222 25,366,807 Basic earnings per common share $ 0.79 $ 0.57 $ 2.29 $ 2.31 Diluted earnings per common share 0.79 0.57 2.28 2.30

Securities

Securities	9 Months Ended
	Sep. 30, 2023
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, 2023 Amortized Gross Gross Fair Allowance for Credit Losses Net Carrying Amount Available for sale: State and municipal securities $ 382,677 $ 148 $ (66,474) $ 316,351 $ — $ 316,351 Corporate bonds 84,221 — (9,931) 74,290 — 74,290 U.S. government and agency securities 111,812 3 (9,024) 102,791 — 102,791 Commercial mortgage-backed securities 104,745 — (14,725) 90,020 — 90,020 Residential mortgage-backed securities 588,373 — (87,625) 500,748 — 500,748 Commercial collateralized mortgage obligations 39,672 — (5,723) 33,949 — 33,949 Residential collateralized mortgage obligations 154,301 — (25,868) 128,433 — 128,433 Asset-backed securities 44,855 1 (599) 44,257 — 44,257 Total $ 1,510,656 $ 152 $ (219,969) $ 1,290,839 $ — $ 1,290,839 Held to maturity: State and municipal securities $ 11,680 $ — $ (675) $ 11,005 $ (890) $ 10,790 Securities carried at fair value through income: State and municipal securities (1) $ 6,815 $ — $ — $ 6,772 $ — $ 6,772 December 31, 2022 Available for sale: State and municipal securities $ 447,086 $ 996 $ (58,605) $ 389,477 $ — $ 389,477 Corporate bonds 89,449 — (7,191) 82,258 — 82,258 U.S. government and agency securities 264,755 4 (16,339) 248,420 — 248,420 Commercial mortgage-backed securities 105,536 — (13,593) 91,943 — 91,943 Residential mortgage-backed securities 649,765 — (77,462) 572,303 — 572,303 Commercial collateralized mortgage obligations 44,330 — (5,517) 38,813 — 38,813 Residential collateralized mortgage obligations 170,136 — (23,766) 146,370 — 146,370 Asset-backed securities 73,918 — (2,018) 71,900 — 71,900 Total $ 1,844,975 $ 1,000 $ (204,491) $ 1,641,484 $ — $ 1,641,484 Held to maturity: State and municipal securities $ 12,174 $ 278 $ (482) $ 11,970 $ (899) $ 11,275 Securities carried at fair value through income: State and municipal securities (1) $ 7,100 $ — $ — $ 6,368 $ — $ 6,368 ________________________ (1) Securities carried at fair value through income have no unrealized gains or losses at the consolidated balance sheet dates 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, 2023, and December 31, 2022, 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, 2023 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: State and municipal securities $ 8,335 $ (493) $ 281,606 $ (65,981) $ 289,941 $ (66,474) Corporate bonds 5,624 (376) 67,667 (9,555) 73,291 (9,931) U.S. government and agency securities — — 102,465 (9,024) 102,465 (9,024) Commercial mortgage-backed securities — — 90,020 (14,725) 90,020 (14,725) Residential mortgage-backed securities 59 (8) 500,689 (87,617) 500,748 (87,625) Commercial collateralized mortgage obligations — — 33,949 (5,723) 33,949 (5,723) Residential collateralized mortgage obligations — — 128,433 (25,868) 128,433 (25,868) Asset-backed securities 5,222 (34) 36,626 (565) 41,848 (599) Total $ 19,240 $ (911) $ 1,241,455 $ (219,058) $ 1,260,695 $ (219,969) Held to maturity: State and municipal securities $ 5,105 $ (62) $ 5,900 $ (613) $ 11,005 $ (675) December 31, 2022 Available for sale: State and municipal securities $ 171,079 $ (14,947) $ 175,011 $ (43,658) $ 346,090 $ (58,605) Corporate bonds 69,618 (5,581) 11,640 (1,610) 81,258 (7,191) U.S. government and agency securities 152,471 (7,373) 95,576 (8,966) 248,047 (16,339) Commercial mortgage-backed securities 37,083 (3,416) 54,860 (10,177) 91,943 (13,593) Residential mortgage-backed securities 231,848 (20,465) 340,455 (56,997) 572,303 (77,462) Commercial collateralized mortgage obligations 21,999 (2,516) 16,814 (3,001) 38,813 (5,517) Residential collateralized mortgage obligations 48,749 (3,928) 97,621 (19,838) 146,370 (23,766) Asset-backed securities 62,047 (1,528) 9,853 (490) 71,900 (2,018) Total $ 794,894 $ (59,754) $ 801,830 $ (144,737) $ 1,596,724 $ (204,491) Held to maturity: State and municipal securities $ 6,518 $ (482) $ — $ — $ 6,518 $ (482) At September 30, 2023, the Company had 647 individual securities that were in an unrealized loss position. Management evaluates available for sale debt securities in unrealized loss positions to determine whether the impairment is due to credit-related factors or noncredit-related factors. Consideration is given to (1) the extent to which the fair value is less than the cost, and (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 currently intend to sell any 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, 2023, management believes that the unrealized losses detailed in the previous table are due to noncredit-related factors, including changes in interest rates and other market conditions. 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: 2023 Balance at January 1, 2023 $ 899 Credit loss expense (9) Balance at September 30, 2023 $ 890 Balance at January 1, 2022 $ 167 Credit loss expense 725 Balance at September 30, 2022 $ 892 Accrued interest of $6.4 million and $8.2 million was not included in the calculation of the allowance or the amortized cost basis of the debt securities at September 30, 2023 or 2022, respectively. There were no past due held-to-maturity securities or held-to-maturity securities in nonaccrual status at September 30, 2023, or December 31, 2022. 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) 2023 2022 Proceeds from sales/calls $ 214,302 $ 484,421 Gross realized gains 596 3,766 Gross realized losses (7,625) (2,102) The following table presents the amortized cost and fair value of securities available for sale and held to maturity at September 30, 2023, 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, 2023 Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ — $ — $ 64,008 $ 63,004 Due after one year through five years — — 96,426 87,840 Due after five years through ten years 5,167 5,105 197,466 169,927 Due after ten years 6,513 5,900 220,810 172,661 Commercial mortgage-backed securities — — 104,745 90,020 Residential mortgage-backed securities — — 588,373 500,748 Commercial collateralized mortgage obligations — — 39,672 33,949 Residential collateralized mortgage obligations — — 154,301 128,433 Asset-backed securities — — 44,855 44,257 Total $ 11,680 $ 11,005 $ 1,510,656 $ 1,290,839 The following table presents carrying amounts of securities pledged as collateral for deposits and repurchase agreements at the periods presented. (Dollars in thousands) September 30, 2023 December 31, 2022 Carrying value of securities pledged to secure public deposits $ 412,829 $ 769,691 Carrying value of securities pledged to repurchase agreements 5,530 6,797

Loans

Loans	9 Months Ended
	Sep. 30, 2023
Receivables [Abstract]
Loans	Note 4 — Loans Loans consist of the following: (Dollars in thousands) September 30, 2023 December 31, 2022 Loans held for sale $ 14,944 $ 49,957 LHFI: Loans secured by real estate: Owner occupied commercial real estate $ 932,109 $ 843,006 Non-owner occupied commercial real estate 1,503,782 1,461,672 Total commercial real estate 2,435,891 2,304,678 Construction/land/land development 1,076,756 945,625 Residential real estate 1,688,169 1,477,538 Total real estate 5,200,816 4,727,841 Commercial and industrial 2,058,073 2,051,161 Mortgage warehouse lines of credit 286,293 284,867 Consumer 22,881 26,153 Total LHFI (1) 7,568,063 7,090,022 Less: Allowance for loan credit losses (“ALCL”) 95,177 87,161 LHFI, net $ 7,472,886 $ 7,002,861 ____________________________ (1) Includes unamortized purchase accounting adjustment and net deferred loan fees of $11.5 million and $14.2 million at September 30, 2023, and December 31, 2022, respectively. As of September 30, 2023, and December 31, 2022, the remaining purchase accounting net loan discount was $179,000 and $2.2 million, respectively. Credit quality indicators. As part of the Company’s commitment to managing the credit quality of its loan portfolio, management annually and periodically 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 cities and 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 Banks. 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 as substandard or worse over $100,000 with direct exposure, modified loans to borrowers experiencing financial difficulty, 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. Purchased loans that have experienced more than insignificant credit deterioration since origination are PCD loans. An allowance for credit losses is determined using the same methodology as other individually evaluated loans. As a result of the merger with BT Holdings, Inc., (“BTH”), the Company held approximately $36.8 million and $48.1 million of unpaid principal balance PCD loans at September 30, 2023, and December 31, 2022, respectively. Please see Note 1 — Significant Accounting Policies included in the 2022 Form 10-K, filed with the SEC for a description of our accounting policies related to purchased financial assets with credit deterioration. The following table reflects recorded investments in loans by credit quality indicator and origination year at September 30, 2023, and gross charge-offs for the nine months ended September 30, 2023, excluding loans held for sale. Loans acquired are shown in the table by origination year, not merger date. The Company had an immaterial amount of revolving loans converted to term loans at September 30, 2023. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: Pass $ 269,854 $ 888,014 $ 485,198 $ 257,683 $ 223,348 $ 209,716 $ 76,329 $ 2,410,142 Special mention — — — — — 7,996 — 7,996 Classified 745 1,916 3,239 1,595 587 9,671 — 17,753 Total commercial real estate loans $ 270,599 $ 889,930 $ 488,437 $ 259,278 $ 223,935 $ 227,383 $ 76,329 $ 2,435,891 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 42 $ — $ 42 Construction/land/land development: Pass $ 203,868 $ 492,097 $ 235,360 $ 30,838 $ 17,281 $ 25,621 $ 35,821 $ 1,040,886 Special mention — 10,718 20,932 — — — — 31,650 Classified 1 180 54 245 667 754 2,319 4,220 Total construction/land/land development loans $ 203,869 $ 502,995 $ 256,346 $ 31,083 $ 17,948 $ 26,375 $ 38,140 $ 1,076,756 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Residential real estate: Pass $ 279,903 $ 517,755 $ 305,358 $ 242,179 $ 99,778 $ 149,748 $ 83,182 $ 1,677,903 Special mention 250 — — 145 — 309 — 704 Classified 342 1,988 1,471 420 1,378 3,853 110 9,562 Total residential real estate loans $ 280,495 $ 519,743 $ 306,829 $ 242,744 $ 101,156 $ 153,910 $ 83,292 $ 1,688,169 Current period year-to-date gross charge-offs $ — $ — $ — $ 5 $ — $ 22 $ — $ 27 Commercial and industrial: Pass $ 252,933 $ 328,833 $ 183,124 $ 40,747 $ 61,655 $ 53,379 $ 1,091,475 $ 2,012,146 Special mention 524 9,918 — 96 — — 3,026 13,564 Classified 2,492 1,488 8,724 313 1,005 430 17,911 32,363 Total commercial and industrial loans $ 255,949 $ 340,239 $ 191,848 $ 41,156 $ 62,660 $ 53,809 $ 1,112,412 $ 2,058,073 Current period year-to-date gross charge-offs $ 111 $ 263 $ 40 $ 141 $ — $ 411 $ 7,104 $ 8,070 Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 286,293 $ 286,293 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 8,423 $ 4,473 $ 1,659 $ 510 $ 522 $ 58 $ 7,113 $ 22,758 Classified 20 72 27 — 3 — 1 123 Total consumer loans $ 8,443 $ 4,545 $ 1,686 $ 510 $ 525 $ 58 $ 7,114 $ 22,881 Current period year-to-date gross charge-offs $ — $ 90 $ 7 $ — $ — $ — $ 10 $ 107 The following table reflects recorded investments in loans by credit quality indicator and origination year at December 31, 2022, and gross charge-offs for the year ended December 31, 2022, excluding loans held for sale. Loans acquired are shown in the table by origination year, not merger date. The Company had an immaterial amount of revolving loans converted to term loans at December 31, 2022. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: Pass $ 885,244 $ 502,287 $ 283,368 $ 230,040 $ 168,079 $ 131,411 $ 69,952 $ 2,270,381 Special mention — — — — 8,174 1,359 1,558 11,091 Classified 930 1,795 1,551 4,014 2,965 11,901 50 23,206 Total commercial real estate loans $ 886,174 $ 504,082 $ 284,919 $ 234,054 $ 179,218 $ 144,671 $ 71,560 $ 2,304,678 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 166 $ — $ 166 Construction/land/land development: Pass $ 445,943 $ 320,951 $ 58,880 $ 27,381 $ 27,753 $ 5,253 $ 48,436 $ 934,597 Special mention 6,217 — — — — — — 6,217 Classified 180 100 286 38 160 1,708 2,339 4,811 Total construction/land/land development loans $ 452,340 $ 321,051 $ 59,166 $ 27,419 $ 27,913 $ 6,961 $ 50,775 $ 945,625 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Residential real estate: Pass $ 535,739 $ 308,070 $ 261,293 $ 107,530 $ 48,652 $ 123,052 $ 80,375 $ 1,464,711 Special mention — — 390 — — — — 390 Classified 2,227 2,764 90 1,494 1,064 4,653 145 12,437 Total residential real estate loans $ 537,966 $ 310,834 $ 261,773 $ 109,024 $ 49,716 $ 127,705 $ 80,520 $ 1,477,538 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 91 $ — $ 91 Commercial and industrial: Pass $ 454,813 $ 239,411 $ 82,168 $ 75,043 $ 40,534 $ 29,745 $ 1,083,221 $ 2,004,935 Special mention 8,683 2,563 — — 187 — 1,620 13,053 Classified 3,641 11,455 188 1,978 1,224 3 14,684 33,173 Total commercial and industrial loans $ 467,137 $ 253,429 $ 82,356 $ 77,021 $ 41,945 $ 29,748 $ 1,099,525 $ 2,051,161 Current period year-to-date gross charge-offs $ 28 $ 726 $ 48 $ 869 $ 337 $ 1,103 $ 5,348 $ 8,459 Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Total Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 282,298 $ 282,298 Special mention — — — — — — 2,042 2,042 Classified — — — — — — 527 527 Total mortgage warehouse lines of credit $ — $ — $ — $ — $ — $ — $ 284,867 $ 284,867 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 9,730 $ 3,822 $ 1,210 $ 784 $ 135 $ 15 $ 10,408 $ 26,104 Classified 22 19 — 6 — — 2 49 Total consumer loans $ 9,752 $ 3,841 $ 1,210 $ 790 $ 135 $ 15 $ 10,410 $ 26,153 Current period year-to-date gross charge-offs $ 3 $ 27 $ 7 $ 2 $ 1 $ 1 $ 2 $ 43 The following tables present the Company’s loan portfolio aging analysis at the dates indicated: September 30, 2023 (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 $ — $ — $ 136 $ 136 $ 2,435,755 $ 2,435,891 $ — Construction/land/land development 1,085 23 55 1,163 1,075,593 1,076,756 — Residential real estate 261 3,076 4,425 7,762 1,680,407 1,688,169 — Total real estate 1,346 3,099 4,616 9,061 5,191,755 5,200,816 — Commercial and industrial 918 6,746 3,509 11,173 2,046,900 2,058,073 — Mortgage warehouse lines of credit — — — — 286,293 286,293 — Consumer 88 10 15 113 22,768 22,881 — Total LHFI $ 2,352 $ 9,855 $ 8,140 $ 20,347 $ 7,547,716 $ 7,568,063 $ — December 31, 2022 (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 $ 31 $ — $ 104 $ 135 $ 2,304,543 $ 2,304,678 $ — Construction/land/land development 854 — 17 871 944,754 945,625 — Residential real estate 1,814 891 450 3,155 1,474,383 1,477,538 — Total real estate 2,699 891 571 4,161 4,723,680 4,727,841 — Commercial and industrial 3,878 1,972 544 6,394 2,044,767 2,051,161 — Mortgage warehouse lines of credit — — — — 284,867 284,867 — Consumer 350 16 11 377 25,776 26,153 — Total LHFI $ 6,927 $ 2,879 $ 1,126 $ 10,932 $ 7,079,090 $ 7,090,022 $ — The following tables detail activity in the ALCL by portfolio segment. Accrued interest of $33.0 million and $21.9 million was not included in the book value for the purposes of calculating the allowance at September 30, 2023 and 2022, 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, 2023 Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total (Dollars in thousands) Beginning balance $ 20,839 $ 8,729 $ 9,018 $ 54,173 $ 817 $ 777 $ 94,353 Charge-offs — — — 3,187 — 15 3,202 Recoveries 28 3 3 477 — 5 516 Provision (1) (1,758) 613 1,048 3,990 (359) (24) 3,510 Ending balance $ 19,109 $ 9,345 $ 10,069 $ 55,453 $ 458 $ 743 $ 95,177 Average balance $ 2,428,969 $ 1,044,180 $ 1,663,291 $ 2,024,675 $ 376,275 $ 23,704 $ 7,561,094 Net charge-offs to loan average balance (annualized) — % — % — % 0.53 % — % 0.17 % 0.14 % __________________________ (1) The $3.5 million provision for credit losses on the consolidated statements of income includes a $3.5 million provision for loan credit losses, a $50,000 provision for off-balance sheet commitments and $45,000 net benefit provision for held to maturity securities credit losses for the three months ended September 30, 2023. Three Months Ended September 30, 2022 Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total (Dollars in thousands) Beginning balance $ 16,112 $ 4,707 $ 5,851 $ 35,477 $ 459 $ 517 $ 63,123 Allowance for loan credit losses - BTH merger (1) 1 — — 5,525 — 1 5,527 Charge-offs — — — 1,618 — 10 1,628 Recoveries 17 200 6 325 — 2 550 Provision (2) 1,901 2,159 1,898 9,349 97 383 15,787 Ending balance $ 18,031 $ 7,066 $ 7,755 $ 49,058 $ 556 $ 893 $ 83,359 Average balance $ 2,046,411 $ 760,682 $ 1,249,746 $ 1,816,912 $ 491,584 $ 24,137 $ 6,389,472 Net charge-offs to loan average balance (annualized) — % (0.10) % — % 0.28 % — % 0.13 % 0.07 % ____________________________ (1) Excluded from the allowance is $10.8 million in PCD loans that were acquired in the merger with BTH that were added to the allowance and immediately written off. (2) The $16.9 million provision for credit losses on the consolidated statements of income includes a $15.8 million provision for loan losses, a $1.2 million provision for off-balance sheet commitments and no provision for held to maturity securities credit losses for the three months ended September 30, 2022. Nine Months Ended September 30, 2023 Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total (Dollars in thousands) Beginning balance $ 19,772 $ 7,776 $ 8,230 $ 50,148 $ 379 $ 856 $ 87,161 Charge-offs 42 — 27 8,070 — 107 8,246 Recoveries 113 3 13 2,189 — 12 2,330 Provision (1) (734) 1,566 1,853 11,186 79 (18) 13,932 Ending balance $ 19,109 $ 9,345 $ 10,069 $ 55,453 $ 458 $ 743 $ 95,177 Average balance $ 2,393,028 $ 997,296 $ 1,599,803 $ 2,051,272 $ 329,205 $ 24,836 $ 7,395,440 Net charge-offs to loan average balance (annualized) — % — % — % 0.38 % — % 0.51 % 0.11 % _________________________ (1) The $14.0 million provision for credit losses on the consolidated statement of income includes a $13.9 million provision for loan losses, a $95,000 provision for off-balance sheet commitments and a $9,000 net benefit provision for held to maturity securities credit losses for the nine months ended September 30, 2023. Nine Months Ended September 30, 2022 Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total (Dollars in thousands) Beginning balance $ 13,425 $ 4,011 $ 6,116 $ 40,146 $ 340 $ 548 $ 64,586 Allowance for loan credit losses - BTH merger (1) 1 — — 5,525 — 1 5,527 Charge-offs 166 — 75 5,943 — 38 6,222 Recoveries 19 200 98 1,505 — 15 1,837 Provision (2) 4,752 2,855 1,616 7,825 216 367 17,631 Ending balance $ 18,031 $ 7,066 $ 7,755 $ 49,058 $ 556 $ 893 $ 83,359 Average balance $ 1,865,658 $ 638,683 $ 1,042,397 $ 1,548,419 $ 453,658 $ 18,887 $ 5,567,702 Net charge-offs to loan average balance (annualized) 0.01 % (0.04) % — % 0.38 % — % 0.16 % 0.11 % _________________________ (1) Excluded from the allowance is $10.8 million in PCD loans that were acquired in the merger with BTH that were added to the allowance and immediately written off. (2) The $20.1 million provision for credit losses on the consolidated statements of income includes a $17.6 million provision for loan losses, a $1.7 million provision for off-balance sheet commitments and a $725,000 provision for held to maturity securities credit losses for the nine months ended September 30, 2022. The decrease in provision expense during the nine months ended September 30, 2023, compared to the nine months ended September 30, 2022, was primarily due to the provision expense increase associated with the BTH merger which occurred on August 1, 2022, offset by an increase in loan provision primarily due to loan growth during the intervening period, as well as an increase in the provision for individually evaluated loan balances at September 30, 2023, compared to September 30, 2022. The Company’s credit quality profile in relation to the ALCL drove an increase of $7.3 million in the collectively evaluated portion of the reserve at September 30, 2023, when compared to September 30, 2022, primarily due to qualitative factor changes across the Company’s risk pools. The individually evaluated portion of the reserve increased $4.5 million at September 30, 2023, when compared to September 30, 2022. The following table presents the amortized cost basis of collateral dependent loans, which are individually evaluated to determine expected credit losses, and the related ALCL allocated to these loans. September 30, 2023 (Dollars in thousands) Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total Real Estate $ 752 $ — $ 3,799 $ — $ — $ — $ 4,551 Equipment — — — 152 — — 152 Other — — — 529 — — 529 Total $ 752 $ — $ 3,799 $ 681 $ — $ — $ 5,232 ALCL Allocation $ — $ — $ — $ — $ — $ — $ — December 31, 2022 (Dollars in thousands) Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total Real Estate $ 273 $ 97 $ 6,731 $ — $ — $ — $ 7,101 Accounts Receivable — — — 831 — — 831 Equipment — — — 285 — — 285 Total $ 273 $ 97 $ 6,731 $ 1,116 $ — $ — $ 8,217 ALCL Allocation $ — $ — $ — $ 738 $ — $ — $ 738 Collateral-dependent loans consist primarily of residential real estate, 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. In the case of commercial and industrial loans secured by equipment, the fair value of the collateral is estimated by third-party valuation experts. Loan balances are charged down to the underlying collateral value when they are deemed uncollectible. Note that the Company did not elect to use the collateral maintenance agreement practical expedient available under CECL. Nonaccrual LHFI was as follows: Nonaccrual With No Total Nonaccrual (Dollars in thousands) Loans secured by real estate: September 30, 2023 December 31, 2022 September 30, 2023 December 31, 2022 Commercial real estate $ 900 $ 435 $ 942 $ 526 Construction/land/land development — 59 235 270 Residential real estate 5,363 7,023 13,236 7,712 Total real estate 6,263 7,517 14,413 8,508 Commercial and industrial 4,592 527 17,072 1,383 Consumer — — 123 49 Total nonaccrual loans $ 10,855 $ 8,044 $ 31,608 $ 9,940 All interest formerly accrued but not received for loans placed on nonaccrual status is reversed from 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, 2023, and December 31, 2022, the Company had $682,000 and zero funding commitments for loans in which the terms were modified as a result of the borrowers experiencing financial difficulty, respectively. For the nine months ended September 30, 2023 and 2022, gross interest income that would have been recorded had the nonaccruing loans been current in accordance with their original terms, was $884,000 and $799,000, respectively. No interest income was recorded on these loans while they were considered nonaccrual during the nine months ended September 30, 2023 and 2022. The Company elects the fair value option for recording residential mortgage loans held for sale in accordance with U.S. GAAP. The Company transferred $7.1 million of nonperforming mortgage loans from the held for sale portfolio to the held for investment portfolio during the three months ended June 30, 2023. As a result, the company had zero nonaccrual mortgage loans held for sale that were recorded using the fair value option election at September 30, 2023, compared to $3.9 million at December 31, 2022. The tables below summarize modifications made to borrowers experiencing financial difficulty by loan and modification type during the dates indicated. Three Months Ended September 30, 2023 Term Extension Combination: Other-Than-Insignificant Payment Delay (Dollars in thousands) Amortized Cost % of Loans Amortized Cost % of Loans Amortized Cost % of Loans Loans secured by real estate: Commercial real estate $ 7,507 0.31 % $ — — % $ 427 0.02 % Construction/land/land development 3,807 0.35 — — — — Residential real estate 745 0.04 — — — — Total real estate 12,059 0.23 — — 427 0.01 Commercial and industrial 13,935 0.68 923 0.04 53 — Total $ 25,994 0.34 $ 923 0.01 $ 480 0.01 Nine Months Ended September 30, 2023 Term Extension Combination: Other-Than-Insignificant Payment Delay (Dollars in thousands) Amortized Cost % of Loans Amortized Cost % of Loans Amortized Cost % of Loans Loans secured by real estate: Commercial real estate $ 7,853 0.32 % $ — — % $ 427 0.02 % Construction/land/land development 3,808 0.35 — — — — Residential real estate 2,477 0.15 — — — — Total real estate 14,138 0.27 — — 427 0.01 Commercial and industrial 15,562 0.76 1,091 0.05 53 — Total $ 29,700 0.39 $ 1,091 0.01 $ 480 0.01 The following table describes the financial effect of the modification made to borrowers experiencing financial difficulty during three and nine months ended September 30, 2023, respectively. Three Months Ended September 30, 2023 Interest Rate Reduction Term Extension Other-Than-Insignificant Payment Delay Commercial real estate N/A Added a weighted average 10.1 months to the life of the modified loans Delayed payment of weighted average 6 months Construction/land/land development N/A Added a weighted average 8.6 months to the life of the modified loans N/A Residential real estate N/A Added a weighted average 18.4 months to the life of the modified loans N/A Commercial and industrial Reduced weighted average contractual interest rate from 10.1% to 9.5% Added a weighted average 6.7 months to the life of the modified loans Delayed payment of weighted average 6 months Nine Months Ended September 30, 2023 Interest Rate Reduction Term Extension Other-Than-Insignificant Payment Delay Commercial real estate N/A Added a weighted average 12.1 months to the life of the modified loans Delayed payment of weighted average 6 months Construction/land/land development N/A Added a weighted average 13.1 months to the life of the modified loans N/A Residential real estate N/A Added a weighted average 9.3 months to the life of the modified loans N/A Commercial and industrial Reduced weighted average contractual interest rate from 9.9% to 9.0% Added a weighted average 9.0 months to the life of the modified loans Delayed payment of weighted average 6 months The following table depicts the performance of loans that have been modified Payment Status (Amortized Cost Basis) September 30, 2023 (Dollars in thousands) Current 30-89 Days Past Due 90 Days or More Past Due Loans secured by real estate: Commercial real estate $ 8,280 $ — $ — Construction/land/land development 3,808 — — Residential real estate 2,195 282 — Total real estate 14,283 282 — Commercial and industrial 16,705 — — Total LHFI $ 30,988 $ 282 $ — There were no loans to borrowers experiencing financial difficulty that defaulted during the nine months ended September 30, 2023, that were modified within the last nine months. A payment default is defined as a loan that was 90 or more days past due. The Company monitors the performance of modified loans on an ongoing basis. In the event of subsequent default, the ALCL is assessed on the basis of an individual evaluation of each loan. The modifications made during the periods presented did not significantly impact the Company’s determination of the allowance for credit losses.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2023
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. These estimates can be inherently uncertain. 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, 2023, and December 31, 2022, 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 2023 or 2022. September 30, 2023 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 264,912 $ 51,439 $ 316,351 Corporate bonds — 73,290 1,000 74,290 U.S. treasury securities 78,963 — — 78,963 U.S. government agency securities — 23,828 — 23,828 Commercial mortgage-backed securities — 90,020 — 90,020 Residential mortgage-backed securities — 500,748 — 500,748 Commercial collateralized mortgage obligations — 33,949 — 33,949 Residential collateralized mortgage obligations — 128,433 — 128,433 Asset-backed securities — 44,257 — 44,257 Securities available for sale 78,963 1,159,437 52,439 1,290,839 Securities carried at fair value through income — — 6,772 6,772 Loans held for sale — 14,944 — 14,944 Mortgage servicing rights — — 19,189 19,189 Other assets - derivatives — 29,493 — 29,493 Total recurring fair value measurements - assets $ 78,963 $ 1,203,874 $ 78,400 $ 1,361,237 Other liabilities - derivatives $ — $ (28,035) $ — $ (28,035) Total recurring fair value measurements - liabilities $ — $ (28,035) $ — $ (28,035) December 31, 2022 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 334,708 $ 54,769 $ 389,477 Corporate bonds — 81,258 1,000 82,258 U.S. treasury securities 110,645 — — 110,645 U.S. government agency securities — 137,775 — 137,775 Commercial mortgage-backed securities — 91,943 — 91,943 Residential mortgage-backed securities — 572,303 — 572,303 Commercial collateralized mortgage obligations — 38,813 — 38,813 Residential collateralized mortgage obligations — 146,370 — 146,370 Asset-backed securities — 71,900 — 71,900 Securities available for sale 110,645 1,475,070 55,769 1,641,484 Securities carried at fair value through income — — 6,368 6,368 Loans held for sale — 25,389 — 25,389 Mortgage servicing rights — — 20,824 20,824 Other assets - derivatives — 26,733 — 26,733 Total recurring fair value measurements - assets $ 110,645 $ 1,527,192 $ 82,961 $ 1,720,798 Other liabilities - derivatives $ — $ (25,275) $ — $ (25,275) Total recurring fair value measurements - liabilities $ — $ (25,275) $ — $ (25,275) The changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the nine months ended September 30, 2023 and 2022, are summarized as follows: (Dollars in thousands) MSRs Securities Available for Sale Securities at Fair Value Through Income Balance at January 1, 2023 $ 20,824 $ 55,769 $ 6,368 Gain (loss) recognized in earnings: Mortgage banking revenue (1) (485) — — Other noninterest income — — 689 Loss recognized in AOCI — (703) — Purchases, issuances, sales and settlements: Originations 656 — — Sales (1,806) — — Settlements — (2,627) (285) Balance at September 30, 2023 $ 19,189 $ 52,439 $ 6,772 ___________________________ (1) Total mortgage banking revenue includes changes in fair value due to market changes and run-off. (Dollars in thousands) MSRs Securities Available for Sale Securities at Fair Value Through Income Balance at January 1, 2022 $ 16,220 $ 41,461 $ 7,497 Gain (loss) recognized in earnings: Mortgage banking revenue (1) 2,409 — — Other noninterest income — — (875) Loss recognized in AOCI — (5,048) — Purchases, issuances, sales and settlements: Originations 1,926 — — Purchases — 25,112 — Acquired in BTH merger 1,099 5,000 — Settlements — (3,323) (275) Balance at September 30, 2022 $ 21,654 $ 63,202 $ 6,347 ___________________________ (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 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. For level 3 securities, the Company determines the fair value of the instruments based on their callability, putability and prepay optionality. Putable instruments are valued at book value, non-putable instruments are priced mainly using a present value calculation based on the spread to the yield curve. Mortgage Servicing Rights (“MSRs”) The carrying amounts of the MSRs equal fair value, which are determined using a discounted cash flow valuation model. The significant assumptions used to value MSRs were as follows: September 30, 2023 December 31, 2022 Range Weighted Average (1) Range Weighted Average (1) Prepayment speeds 7.31% - 7.89% 7.64 % 7.65% - 9.20% 8.11 % Discount rates 10.25 - 12.75 10.31 9.50 - 22.07 12.55 __________________________ (1) The weighted average was calculated with reference to the principal balance of the underlying mortgages. Recently there have been significant market-driven fluctuations in the assumptions listed above. These fluctuations can be rapid and may continue to be significant. Typically, loans with higher average coupon rates have a greater likelihood of prepayment during comparatively low interest rate environments, while loans with lower average coupon rates have a lower likelihood of prepayment. The recent increase in rates has caused a decrease in the weighted average prepayment speed. 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 and interest rate lock commitments are based upon the amounts that would be required to settle the contracts. Fair values for risk participations, forward mortgage backed security purchases or loan sale commitments and future contracts to purchase United States treasury notes are based on the fair values of the underlying mortgage loans or securities 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 Topic 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, 2023, and December 31, 2022, 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, 2023 (Dollars in thousands) Aggregate Fair Value Principal Balance/Amortized Cost Difference Loans held for sale (1) $ 14,944 $ 14,715 $ 229 Securities carried at fair value through income 6,772 6,815 (43) Total $ 21,716 $ 21,530 $ 186 ____________________________ (1) There were no loans held for sale that were designated as nonaccrual or 90 days or more past due at September 30, 2023. December 31, 2022 (Dollars in thousands) Aggregate Fair Value Principal Balance/Amortized Cost Difference Loans held for sale (1) $ 25,389 $ 24,946 $ 443 Securities carried at fair value through income 6,368 7,100 (732) Total $ 31,757 $ 32,046 $ (289) ____________________________ (1) $3.9 million of loans held for sale were designated as nonaccrual or 90 days or more past due at December 31, 2022. Of this balance, $3.3 million was guaranteed by U.S. Government agencies. Changes in the fair value of assets for which the Company elected the fair value option are classified in the consolidated statements 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: 2023 2022 2023 2022 Mortgage banking revenue (loans held for sale) $ (22) $ (309) $ (214) $ (741) Other income: Securities carried at fair value through income 666 (282) 689 (875) Total fair value option impact on noninterest income (1) $ 644 $ (591) $ 475 $ (1,616) ____________________________ (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 creditworthiness of each issuer. Credit spreads ranged from 83 to 227 basis points at both September 30, 2023, and December 31, 2022. 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. Fair Value of Assets Recorded on a Nonrecurring Basis Equity Securities without Readily Determinable Fair Values Equity securities without readily determinable fair values totaled $63.8 million and $67.4 million at September 30, 2023, and December 31, 2022, 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. During the three months ended September 30, 2023, the Company observed a price change in multiple orderly transactions for identical equity securities and adjusted the Company’s basis upwards in one of the Company’s equity securities by $10.1 million. Government National Mortgage Association Repurchase Asset The Company had zero and $24.6 million Government National Mortgage Association (“GNMA”) repurchase assets included in loans held for sale on the consolidated balance sheets at September 30, 2023, and December 31, 2022, respectively. The assets were 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. During the second half of 2022, the Company entered into an agreement to sell its GNMA MSR portfolio, which met all final sale conditions in early 2023. The Company sold $1.8 million in GNMA MSR, with no significant additional gain or loss realized, and derecognized the related GNMA repurchase asset and offsetting liability during the quarter ended March 31, 2023. Individually Evaluated 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 include estimating the fair value using the fair value of the collateral for collateral-dependent loans and a discounted cash flow methodology for other evaluated loans that are not collateral dependent. If the loan is identified as collateral-dependent, the fair value method of measuring the amount of credit loss is utilized. Evaluating the fair value of the collateral for collateral-dependent loans requires obtaining a current independent appraisal of the collateral and applying a discount factor to the value. If the loan is not collateral-dependent, the discounted cash flow method is utilized, which involves assumptions and judgments as to credit risk, prepayment risk, liquidity risk, default rates, loss severity, payment speeds, collateral values and discount rate. Loans that have experienced a credit loss with specific allocated losses are 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 $15.9 million and $20.7 million at September 30, 2023, and December 31, 2022, 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 ALCL. 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 was estimated using Level 3 inputs based on observable market data and was $3.9 million and $806,000 at September 30, 2023, and December 31, 2022, respectively. At September 30, 2023, and December 31, 2022, the Company had zero and $10,000, respectively, in principal amount of 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, 2023 December 31, 2022 Financial assets: Level 1 inputs: Carrying Estimated Carrying Estimated Cash and cash equivalents $ 305,278 $ 305,278 $ 358,972 $ 358,972 Level 2 inputs: Non-marketable equity securities held in other financial institutions 63,842 63,842 67,378 67,378 GNMA repurchase asset — — 24,569 24,569 Accrued interest and loan fees receivable 41,231 41,231 38,136 38,136 Level 3 inputs: Securities held to maturity 10,790 11,005 11,275 11,970 LHFI, net 7,472,886 7,094,772 7,002,861 6,835,770 Financial liabilities: Level 2 inputs: Deposits 8,374,488 8,358,211 7,775,702 7,753,966 FHLB advances and other borrowings 12,213 11,679 639,230 639,103 Subordinated indebtedness 196,825 187,369 201,765 181,624 Accrued interest payable 14,126 14,126 3,917 3,917

Mortgage Banking

Mortgage Banking	9 Months Ended
	Sep. 30, 2023
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 2023 2022 2023 2022 Origination $ 124 $ 207 $ 384 $ 641 Gain on sale of loans held for sale 757 636 2,380 4,477 Originations of MSRs 225 462 656 1,926 Servicing 915 1,446 2,840 4,306 Total gross mortgage revenue 2,021 2,751 6,260 11,350 MSR valuation adjustments, net (1) (122) (2,034) (485) 2,409 Mortgage HFS and pipeline fair value adjustment (110) (410) (27) (971) MSR hedge impact (897) (1,236) (1,673) (7,267) Mortgage banking revenue $ 892 $ (929) $ 4,075 $ 5,521 ____________________________ (1) Based upon broker estimate, the Company recorded a $2.0 million impairment on the held for sale GNMA MSR portfolio during the quarter ended September 30, 2022. Management uses forward-settling mortgage-backed securities and U.S. Treasury futures 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) 2023 2022 2023 2022 Balance at beginning of period $ 19,086 $ 22,127 $ 20,824 $ 16,220 Servicing acquired in BTH merger — 1,099 — 1,099 Addition of servicing rights 225 462 656 1,926 Settlement of sale of GNMA MSR — — (1,806) — Valuation adjustment, net of amortization (122) (2,034) (485) 2,409 Balance at end of period $ 19,189 $ 21,654 $ 19,189 $ 21,654 During the second half of 2022, the Company entered into an agreement to sell its GNMA MSR portfolio, which met all final sale conditions in early 2023. The Company sold $1.8 million in GNMA MSR, with no significant additional gain or loss realized, and derecognized the related GNMA repurchase asset and offsetting liability during the quarter ended March 31, 2023. The Company receives annual servicing fee income approximating 0.25% 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 putback expenses. Such representations and warranties typically include those made regarding loans that had missing or insufficient file documentation and/or loans obtained through fraud by borrowers or other third parties. Putback claims may be made until the loan is paid in full. When a putback claim is received, the Company evaluates the claim and takes appropriate actions based on the nature of the claim. The Company is required by the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation to provide a response to putback claims within 60 days of the date of receipt. At September 30, 2023, and December 31, 2022, the reserve for mortgage loan servicing putback expenses totaled $146,000 and $217,000, respectively. There is inherent uncertainty in reasonably estimating the requirement for reserves against future mortgage loan servicing putback expenses. Future putback expenses depend on many subjective factors, including the review procedures of the purchasers and the potential refinance activity on loans sold with servicing released and the subsequent consequences under the representations and warranties. GNMA optional repurchase programs allow financial institutions to buy back individual delinquent mortgage loans that meet certain criteria from the securitized loan pool for which the institution provides servicing. At the servicer’s option, and without GNMA's prior authorization, the servicer may repurchase a delinquent loan for an amount equal to 100% of the remaining principal balance of the loan. This buy-back option is considered a conditional option until the delinquency criteria are met, at which time the option becomes unconditional. When a financial institution is deemed to have regained effective control over these loans under the unconditional buy-back option, the loans can no longer be reported as sold and must be included in the consolidated balance sheets as mortgage loans held for sale, regardless of whether the institution intends to exercise the buy-back option. These loans totaled $24.6 million at December 31, 2022, and were recorded as mortgage loans held for sale at the lower of cost or fair value with a corresponding liability in FHLB advances and other borrowings on the Company’s consolidated balance sheets. The final sale conditions of the GNMA MSR portfolio were met during the quarter ended March 31, 2023, and, accordingly, there were no GNMA repurchase program loans on the balance sheet at September 30, 2023.

Borrowings

Borrowings	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Borrowings	Note 7 — Borrowings Borrowed funds are summarized as follows: (Dollars in thousands) September 30, 2023 December 31, 2022 Short-term FHLB advances $ — $ 550,000 Long-term FHLB advances 6,541 6,740 GNMA repurchase liability — 24,569 Overnight repurchase agreements with depositors 5,672 27,921 Correspondent short-term borrowings — 30,000 Total FHLB advances and other borrowings $ 12,213 $ 639,230 Subordinated indebtedness, net $ 196,825 $ 201,765 Debt Security Issue Year Interest Rate Outstanding Amount (Dollars in thousands) Floating rate subordinated promissory notes due June 2025 2015 Prime +175 bps Min: 3.875% Max: 6.375% $ 5,500 Floating rate subordinated promissory notes due December 2023 2016 Prime +125 bps Min: 3.875% Max: 6.375% 3,000 Floating rate subordinated promissory notes due December 2026 2016 Prime +175 bps Min: 3.875% Max: 6.375% 6,750 Floating rate subordinated promissory notes due December 2024 2017 Prime +125 bps Min: 3.875% Max: 6.375% 10,850 Floating rate subordinated promissory notes due December 2027 2017 Prime +175 bps Min: 3.875% Max: 6.375% 5,200 Floating rate subordinated promissory notes due December 2025 2018 Prime +50 bps Min: 3.875% Max: 6.125% 3,200 Floating rate subordinated promissory notes due December 2028 2018 Prime +75 bps Min: 3.875% Max: 6.125% 1,900 Fixed to floating rate subordinated promissory notes due June 2031 2021 Through 6/30/26: 4.00% After 6/30/26: Prime +75 bps Min: 3.875% Max: 6.125% 1,000 Remaining unamortized merger-related fair value adjustment at September 30, 2023 (38) Total assumed subordinated notes 37,362 Legacy subordinated indebtedness 143,129 Total subordinated indebtedness, excluding junior subordinated debt $ 180,491 The following table is a summary of the terms of the current junior subordinated debentures at September 30, 2023: (Dollars in thousands) Issuance Trust Issuance Date Maturity Date Amount Outstanding Rate Type Current Rate Maximum Rate CTB Statutory Trust I 07/2001 07/2031 $ 6,702 Variable (1) 8.37 % 12.50 % First Louisiana Statutory Trust I 09/2006 12/2036 4,124 Variable (2) 7.47 16.00 BT Holdings Trust I 05/2007 09/2037 7,217 Variable (3) 7.30 N/A Par amount 18,043 Unamortized original issue discount (1,026) Unamortized purchase accounting discount (683) Total junior subordinated debt at September 30, 2023 $ 16,334 ____________________________ (1) The trust preferred securities reprice quarterly based on the three-month average SOFR plus 3.30%, with the last reprice date on July 27, 2023. (2) The trust preferred securities reprice quarterly based on the three-month CME Term SOFR plus 1.80%, plus 0.26161% SOFR spread adjustment, with the last reprice date on September 13, 2023. (3) The trust preferred securities reprice quarterly based on the three-month CME Term SOFR plus 1.64%, plus 0.26161% SOFR spread adjustment, with the last reprice date on September 1, 2023.

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2023
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 interest rate swap agreements under which the Company receives interest at a variable rate and pays at a fixed rate. The derivative instruments represented by these swap agreements are designated as cash flow hedges of the Company’s forecasted variable cash flows under a variable-rate term borrowing agreements. During the terms of the swap agreements, the effective portion of changes in the fair value of the derivative instruments are recorded in accumulated other comprehensive (loss) 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 derivatives recognized directly in earnings. The entire swap fair value will be reclassified into earnings before the expiration dates of the swap agreements. Derivatives Not Designated as Hedges Customer interest rate derivative program The Company offers certain derivatives products, primarily interest rate swaps, directly to qualified commercial banking customers to facilitate their risk management strategies. In most 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 and U.S. Treasury future contracts. Fair Values of Derivative Instruments on the Consolidated Balance Sheets The following tables disclose the fair value of derivative instruments in the Company’s consolidated balance sheets at September 30, 2023, and December 31, 2022, as well as the effect of these derivative instruments on the Company’s consolidated statements of income for the nine months ended September 30, 2023 and 2022. Derivative instruments and their related gains and losses are reported in other operating activities, net in the statements of cash flows. (Dollars in thousands) Notional Amounts (1) Fair Values Derivatives designated as cash flow hedging instruments: September 30, 2023 December 31, 2022 September 30, 2023 December 31, 2022 Interest rate swaps included in other assets $ 10,500 $ 10,500 $ 1,106 $ 1,043 Derivatives not designated as hedging instruments: Interest rate swaps included in other assets $ 366,934 $ 352,842 $ 27,991 $ 25,482 Interest rate swaps included in other liabilities 360,119 345,742 (27,517) (25,175) Risk participation agreements included in other assets 20,000 59,738 1 — Forward commitments to purchase forward-settling mortgage-backed securities included in other liabilities 10,000 7,000 (153) (100) Forward commitments to purchase treasury notes in other liabilities 23,500 31,500 (365) — Forward commitments to sell residential mortgage loans included in other assets 4,500 8,500 53 7 Interest rate-lock commitments on residential mortgage loans included in other assets 14,154 9,544 342 201 $ 799,207 $ 814,866 $ 352 $ 415 ____________________________ (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, 2023, and December 31, 2022, were as follows: Weighted-Average Interest Rate September 30, 2023 December 31, 2022 Interest rate swaps: Paid Received Paid Received Cash flow hedges 4.24 % 8.25 % 4.98 % 5.72 % Non-hedging interest rate swaps - financial institution counterparties 4.77 7.87 3.72 5.75 Non-hedging interest rate swaps - customer counterparties 7.87 4.77 5.75 3.72 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: 2023 2022 2023 2022 Amount of loss recognized in mortgage banking revenue (1) $ (1,102) $ (1,317) $ (1,613) $ (3,537) Amount of gain recognized in other non-interest income 82 210 167 652 ____________________________ (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 periods 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, 2023, and December 31, 2022, the Company had cash collateral on deposit with swap counterparties totaling $4.0 million and $7.6 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, 2023
Share-Based Payment Arrangement [Abstract]
Stock and Incentive Compensation Plans	Note 9 — Stock and Incentive Compensation Plans The Company has granted, and currently has outstanding, stock and incentive compensation awards subject to the provisions of the Company’s 2012 Stock Incentive Plan (the “2012 Plan”). 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 stock units (“PSU”) or any combination thereof. At September 30, 2023, the maximum number of shares of the Company’s common stock available for issuance under the 2012 Plan was 33,097 shares. Additionally, the Company’s stockholders approved an employee stock purchase plan (“ESPP”) which 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. 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 grant date fair value of the rights determined at the beginning of the purchase period, adjusted for forfeitures and certain modifications. At September 30, 2023, there was $312,000 of total unrecognized compensation cost related to estimated ESPP shares for the June 1, 2023, ESPP purchase period. These costs are expected to be recognized over a period of 0.67 year. The table below includes the weighted-average assumptions used to calculate the grant date fair value of the ESPP rights for the periods indicated using the Black-Scholes option pricing model: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Expected term (in years) 1.00 1.00 1.00 1.00 Dividend yield $ 2.08 $ 1.52 $ 1.81 $ 1.38 Risk-free interest rate 4.94 % 2.00 % 3.52 % 0.98 % Expected volatility 31.12 32.56 31.81 39.75 The ESPP shares purchased are as follows for the dates indicated: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 ESPP shares purchased — — 46,213 26,089 Shares available for issuance under the ESPP 927,698 973,911 927,698 973,911 The Compensation Committee (“Committee”) has approved and the Company has granted PSUs to select officers and employees under the 2012 Plan. Each PSU represents a right for the participant to receive shares of Company common stock or cash equal to the fair market value of such stock, as determined by the Committee. The number of PSUs to which the participant may be entitled will vary from 0% to 150% of the target number of PSUs, based on the Company’s achievement of specified performance criteria during the performance period compared to performance benchmarks adopted by the Committee and, further, the participant’s continuous service with the Company through the third anniversary of the date of the grant. Each performance period commences on January 1 and ends three years later on December 31, (“Performance Period”). Share-based compensation cost charged to income for the three and nine months ended September 30, 2023 and 2022, 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) 2023 2022 2023 2022 RSA & RSU $ 1,180 $ 753 $ 3,236 $ 2,030 PSU 41 134 336 283 ESPP 114 83 314 235 Total stock compensation expense $ 1,335 $ 970 $ 3,886 $ 2,548 Related tax benefits recognized in net income $ 280 $ 204 $ 816 $ 535 Restricted Stock and Performance Stock Grants The Company’s RSAs and RSUs 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 Company’s PSU awards, excluding the CEO PSUs, are three-year cliff-vested awards, with each unit divided into two categories (“ROAA Unit Group” and “ROAE Unit Group”), composed of an equivalent number of initial PSUs granted. The PSUs do not reflect potential increases or decreases resulting from the interim performance results until the final performance results are determined at the end of the three-year period. The ROAA Unit Group is based upon the Company’s Performance Period Return on Average Assets performance, and the ROAE Unit Group is based upon the Company’s Performance Period Return on Average Equity performance. The PSUs are initially valued utilizing the fair value of the Company’s stock at the grant date, assuming 100% of the target number of units are achieved. Subsequent valuation of the PSUs is determined using the ratio of the actual Company’s Performance Period ROAA or ROAE to the Company’s targeted Performance Period ROAA or ROAE, applied to the PSUs awarded times the Company’s closing month end stock price for the month immediately preceding the period end date. Forfeitures are recognized as they occur. The following table summarizes the Company’s award activity: Nine Months Ended September 30, 2023 2022 Shares Weighted Average Grant-Date Fair Value Shares Weighted Average Grant-Date Fair Value Nonvested RSAs, January 1, 27,391 $ 35.37 48,048 $ 35.27 Granted RSAs 16,788 28.61 12,840 37.39 Vested RSAs (17,237) 34.33 (22,682) 35.73 Nonvested RSAs, September 30, 26,942 31.82 38,206 35.71 Nonvested RSUs, January 1, 270,390 $ 39.63 73,977 $ 40.64 Granted RSUs 113,674 35.70 87,795 43.09 Vested RSUs (53,263) 41.94 (23,260) 40.40 Forfeited RSUs (10,014) 43.44 (1,841) 43.48 Nonvested RSUs, September 30, 320,787 37.73 136,671 42.21 Nonvested PSUs, January 1, 157,367 $ 29.06 — $ — Granted PSUs 43,591 30.69 27,632 40.85 Forfeited PSUs (3,116) 30.69 — — Nonvested PSUs, September 30, 197,842 27.96 27,632 40.85 At September 30, 2023, there was $342,000, $10.6 million and $2.8 million of total unrecognized compensation cost related to nonvested RSA shares, RSU shares and PSU shares under the 2012 Plan, respectively. Those costs are expected to be recognized over a weighted-average period of 0.4, 3.8 and 2.1 years for RSA, RSU and PSU shares, respectively. Stock Option Grants The Company has previously issued common stock options to select officers and employees primarily through individual agreements. The exercise price of each option varies by agreement and is based on the fair value of the stock at the date of the grant. No outstanding stock option has a term that exceeds twenty years, and all of the outstanding options are fully vested. The Company recognized 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. In conjunction with the BTH merger, the Company assumed the BTH 2012 Equity Incentive Plan and converted all outstanding options to purchase BTH common stock into options to purchase an aggregate of 611,676 shares of the Company’s common stock. Under the terms of applicable change in control provisions within the BTH 2012 Equity Incentive Plan and BTH Notice Of Stock Option Award, all BTH stock options fully vested immediately prior to the closing of the merger that occurred on August 1, 2022. BTH converted options have no expiration dates past August 16, 2031, and no further grants will be made under the BTH 2012 Equity Incentive Plan. The table below summarizes the status of the Company’s stock options and changes during the nine months ended September 30, 2023 and 2022. (Dollars in thousands, except per share amounts) Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value Nine Months Ended September 30, 2023 Outstanding at January 1, 2023 504,437 $ 29.46 5.13 $ 3,736 Exercised (55,897) 17.35 — 918 Expired (11,081) 33.63 — — Outstanding and exercisable at September 30, 2023 437,459 30.90 3.88 917 Nine Months Ended September 30, 2022 Outstanding at January 1, 2022 39,200 $ 10.73 2.28 $ 1,262 BTH options converted to OBNK options 611,676 28.62 — — Exercised (60,687) 19.67 — 1,373 Expired (331) 37.01 — — Outstanding and exercisable at September 30, 2022 589,858 28.05 4.96 5,971

Accumulated Other Comprehensive

Accumulated Other Comprehensive (Loss) Income	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Accumulated Other Comprehensive (Loss) Income	Note 10 — Accumulated Other Comprehensive (Loss) Income Accumulated other comprehensive (loss) income (“AOCI”) includes the after-tax change in unrealized gains and losses on AFS securities and cash flow hedging activities. (Dollars in thousands) Unrealized (Loss) Gain on AFS Securities Unrealized Gain (Loss) on Cash Flow Hedges Accumulated Other Comprehensive (Loss) Income Balance at January 1, 2023 $ (160,700) $ 825 $ (159,875) Net change (12,904) 50 (12,854) Balance at September 30, 2023 $ (173,604) $ 875 $ (172,729) Balance at January 1, 2022 $ 5,809 $ (80) $ 5,729 Net change (181,919) 957 (180,962) Balance at September 30, 2022 $ (176,110) $ 877 $ (175,233)

Capital and Regulatory Matters

Capital and Regulatory Matters	9 Months Ended
	Sep. 30, 2023
Banking Regulation [Abstract]
Capital and Regulatory Matters	Note 11 — Capital and Regulatory Matters The Company (on a consolidated basis) and the Bank is 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. 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 include dividend payments, 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 total consolidated assets (as defined). Management believes, at September 30, 2023, and December 31, 2022, that the Company and the Bank met all capital adequacy requirements to which they are subject, including the capital buffer requirement. At September 30, 2023, and December 31, 2022, Origin’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,” Origin 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 were required to 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). The two-year delay is followed by a three-year transition period of CECL’s initial impact on the Company’s regulatory capital (from January 1, 2022, through December 31, 2024). The amount representing the CECL impact to the Company’s regulatory capital that will be ratably transitioning back into regulatory capital over the transition period is $3.2 million and $5.1 million at September 30, 2023, and December 31, 2022, respectively. The actual capital amounts and ratios of the Company and the Bank at September 30, 2023, and December 31, 2022, are presented in the following table: (Dollars in thousands) September 30, 2023 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. $ 988,951 11.46 % $ 604,324 7.00 % N/A N/A Origin Bank 1,034,519 12.02 602,430 7.00 $ 559,399 6.50 % Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 1,004,742 11.64 733,823 8.50 N/A N/A Origin Bank 1,034,519 12.02 731,522 8.50 688,492 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 1,261,080 14.61 906,488 10.50 N/A N/A Origin Bank 1,201,282 13.96 903,647 10.50 860,616 10.00 Leverage Ratio Origin Bancorp, Inc. 1,004,742 10.00 402,029 4.00 N/A N/A Origin Bank 1,034,519 10.33 400,778 4.00 500,973 5.00 December 31, 2022 Common Equity Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 906,859 10.93 580,857 7.00 N/A N/A Origin Bank 952,579 11.50 579,775 7.00 538,363 6.50 Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 922,584 11.12 705,327 8.50 N/A N/A Origin Bank 952,579 11.50 704,013 8.50 662,600 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 1,180,665 14.23 871,290 10.50 N/A N/A Origin Bank 1,109,257 13.39 869,661 10.50 828,249 10.00 Leverage Ratio Origin Bancorp, Inc. 922,584 9.66 381,955 4.00 N/A N/A Origin Bank 952,579 9.94 383,359 4.00 479,198 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 $141.4 million at September 30, 2023. Stock Repurchases In July 2022, the Board of Directors of the Company authorized a stock repurchase program pursuant to which the Company may, from time to time, purchase up to $50 million of its outstanding common stock. The shares may be repurchased in the open market or in privately negotiated transactions from time to time, depending upon market conditions and other factors, and in accordance with applicable regulations of the SEC. The stock repurchase program is intended to expire in three years but may be terminated or amended by the Board of Directors at any time. The stock repurchase program does not obligate the Company to purchase any shares at any time. There have been no stock repurchases during the nine months ended September 30, 2023 or 2022.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 12 — Commitments and Contingencies Credit-Related Commitments In the ordinary 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, non-revolving loan commitments issued mainly to finance the merger 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. The table below presents the Company’s commitments to extend credit by commitment expiration date for the dates indicated: (Dollars in thousands) September 30, 2023 Less than One-Three Three-Five Greater than Total Commitments to extend credit (1) $ 921,782 $ 961,365 $ 447,769 $ 101,953 $ 2,432,869 Standby letters of credit 102,449 6,958 32,957 — 142,364 Total off-balance sheet commitments $ 1,024,231 $ 968,323 $ 480,726 $ 101,953 $ 2,575,233 December 31, 2022 Commitments to extend credit (1) $ 1,093,744 $ 988,212 $ 553,069 $ 96,783 $ 2,731,808 Standby letters of credit 86,922 2,264 — — 89,186 Total off-balance sheet commitments $ 1,180,666 $ 990,476 $ 553,069 $ 96,783 $ 2,820,994 ____________________________ (1) Includes $723.3 million and $594.6 million of unconditionally cancellable commitments at September 30, 2023, and December 31, 2022, respectively. At September 30, 2023, the Company held 29 unfunded letters of credit from the FHLB totaling $584.1 million, with expiration dates ranging from October 2, 2023, to September 22, 2027. At December 31, 2022, the Company held 28 unfunded letters of credit from the FHLB totaling $277.4 million, with expiration dates ranging from January 14, 2023, to September 22, 2027. The Company has a total contingent liability of $1.8 million as of September 30, 2023, for retention bonuses and guaranteed minimum incentives associated with the BTH merger. The retention bonuses for former BTH employees total $846,000, with $423,000, or 50%, due at December 31, 2023, and the remaining $423,000, or 50%, due at December 31, 2024. The guaranteed minimum incentives for former BTH employees total $950,000, with approximately 50% due at February 28, 2024, and the remaining 50% due at February 28, 2025. In all cases, continued employment through the payout date is required in order to receive the compensation. In conjunction with the December 31, 2021, acquisitions of the Lincoln Agency, LLC and Pulley-White Insurance Agency, Inc., the Company has a total estimated fair value contingent liability of $1.5 million as of September 30, 2023. The Company expects 30% of the estimated fair value contingent liability will be payable on or about December 31, 2023, with the remaining 70% payable on or about December 31, 2024, if Davison Insurance Agency, LLC, the acquirer and surviving wholly-owned subsidiary of the Company, meets certain revenue growth objectives over three years. The fair value and probability of payout of this liability is reassessed annually at the fiscal year end of the Company. 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 $4.7 million and $4.6 million at September 30, 2023, and December 31, 2022, 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.

Business Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2023
Business Combination and Asset Acquisition [Abstract]
Business Combinations	Note 13 — Business Combinations BT Holdings, Inc. On August 1, 2022, the Company completed its merger with BT Holdings, Inc. (“BTH”), a Texas corporation and the registered bank holding company of BTH Bank, acquiring 100% of the voting equity interests of BTH. The Company issued 6,794,910 shares of its common stock, and all outstanding BTH common stock options were converted into options to purchase an aggregate of 611,676 shares of Origin common stock. Based on the closing price of the Company’s common stock on July 29, 2022, of $43.07 per share, the aggregate consideration to be paid to holders of BTH common stock in connection with the merger is valued at approximately $307.8 million. Goodwill of $94.5 million was recorded as a result of the transaction. The merger added new markets for expansion and brings complementary businesses together to drive synergies and growth, which are the factors that gave rise to the goodwill recorded. The goodwill will not be deductible for tax purposes. Including the effects of the known purchase accounting adjustments, as of the merger date, Origin had approximately $9.84 billion in assets, $6.77 billion in loans and $7.99 billion in deposits on a consolidated basis. Origin Bank and BTH Bank, N.A. operated as separate banking subsidiaries of the Company until the merger of the banks, which Origin completed on October 7, 2022, concurrently with the data processing conversion. BTH formerly operated its banking business from 13 locations in East Texas, Dallas and Fort Worth, Texas, each of which now operates as a banking location of Origin Bank. The Company has determined that the merger of the net assets of BTH constitutes a business combination as defined by the ASC Topic 805. Accordingly, the assets acquired and liabilities assumed are presented at their fair values as required. Fair values were determined based on the requirements of ASC Topic 820. The Company has finalized its analysis of the loans acquired along with the other acquired assets and assumed liabilities related to the merger with BT Holdings, Inc. The following schedule is a breakdown of the assets acquired and liabilities assumed as of the merger date: BT Holdings, Inc. (Dollars in thousands) As Recorded by Origin Assets Acquired: Cash and cash equivalents $ 69,953 Investment securities 456,808 Loans acquired 1,239,532 Allowance for credit losses on loans (5,527) Loans receivable, net 1,234,005 Premises and equipment 17,825 Non-marketable equity securities held in other financial institutions 5,873 Core deposit intangible 38,356 Other assets 23,778 Total assets acquired $ 1,846,598 Liabilities Assumed: Noninterest-bearing deposits $ 398,089 Interest-bearing deposits 865,864 Time deposits 302,506 Total deposits 1,566,459 Securities sold under agreements to repurchase 10,133 Subordinated indebtedness, net 44,074 Accrued expenses and other liabilities 12,674 Total liabilities assumed 1,633,340 Net assets acquired 213,258 Purchase price 307,784 Goodwill $ 94,526 The Company’s operating results include the operating results of the acquired assets and assumed liabilities of BTH subsequent to the merger date. Acquisition Accounting. The following is a description of the methods used to determine the fair values of significant assets and liabilities acquired as part of a merger or acquisition. The Company elected to use the pushdown accounting method to record the merger. Loans acquired – Fair values for PCD loans were based on a discounted cash flow methodology that considered factors including the type of loan and related collateral, classification status, fixed or variable interest rate, term of loan and whether or not the loan was amortizing, and current discount rates except when a fair value of collateral approach was applied. The discount rates used for PCD loans were based on current market rates and include adjustments for liquidity concerns. The discount rate does not include a factor for credit losses, as that has been included in the estimated cash flows. Non-PCD loans were grouped together according to similar characteristics and were treated in the aggregate when applying valuation techniques. See Note 4 — Loans in these condensed notes to the consolidated financial statements for more information related to loans acquired. Loan Acquisition Accounting – The Company accounts for its acquisitions/mergers under ASC Topic 805, Business Combinations, which requires the use of the acquisition method of accounting. All identifiable assets acquired, including loans, are recorded at fair value. The fair value for acquired loans at the time of acquisition or merger is based on a variety of factors, including discounted expected cash flows, adjusted for estimated prepayments and credit losses. In accordance with ASC 326, the fair value adjustment is recorded as premium or discount to the unpaid principal balance of each acquired loan. Loans that have been identified as having experienced a more-than-insignificant deterioration in credit quality since origination are PCD loans. The net premium or discount on PCD loans is adjusted by the Company’s allowance for credit losses recorded at the time of merger/acquisition. The remaining net premium or discount is accreted or amortized into interest income over the remaining life of the loan using the effective interest rate method. The net premium or discount on loans that are not classified as PCD (“non-PCD”), that includes credit and non-credit components, is accreted or amortized into interest income over the remaining life of the loan using a constant yield method. The Company then records the necessary allowance for credit losses on the non-PCD loans through provision for credit losses expense. Purchased loans that reflect a more-than-insignificant deterioration of credit from origination are considered PCD. For PCD loans, the initial estimate of expected credit losses is recognized in the allowance for credit loss on the date of the merger using the same methodology as other loans held for investment as discussed in Note 4 — Loans in these condensed notes to the consolidated financial statements. The following table provides a summary of loans purchased with credit deterioration at the merger transaction date with BTH: August 1, 2022 (Dollars in thousands) Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total Unpaid principal balance $ 10,731 $ 1,315 $ 2,880 $ 37,117 $ — $ 169 $ 52,212 PCD allowance for credit loss at merger 1 — — 5,525 — 1 5,527 Non-credit related (premium)/discount (277) (92) 3 (77) — 1 (442) Fair value of PCD loans $ 11,007 $ 1,407 $ 2,877 $ 31,669 $ — $ 167 $ 47,127 Revenue and earnings of BTH since the acquisition date have not been disclosed as the acquired company was merged into the Company and separate financial information is not readily available. The following table presents unaudited pro-forma information as if the merger with BTH had occurred on January 1, 2022. This pro-forma information gives effect to certain adjustments, including purchase accounting fair value adjustments, amortization of core deposit intangible and related income tax effects and is based on our historical results for the periods presented. Transaction-related costs related to the merger are not reflected in the pro-forma amounts. The pro-forma information does not necessarily reflect the results of operations that would have occurred had the Company acquired BTH at the beginning of fiscal year 2021. Cost savings are also not reflected in the unaudited pro-forma amounts. (Dollars in thousands except share and per share data) Pro-Forma for the Nine Months Ended September 30, 2022 Net interest income $ 243,932 Noninterest income 49,425 Net income 76,286 Pro-forma earnings per share: Basic $ 2.50 Diluted 2.48 Weighted average shares outstanding 32,092,071

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Pay vs Performance Disclosure
Net income	$ 24,313	$ 21,760	$ 24,302	$ 16,243	$ 21,311	$ 20,683	$ 70,375	$ 58,237

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 30, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2023
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 Lincoln Agency, LLC, Lincoln Agency Transportation Insurance, Pulley-White Insurance Agency, Reeves, Coon and Funderburg, Simoneaux & Wallace Agency and Thomas & Farr Agency. 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, 2022, but in the opinion of management, reflect all adjustments (which are of a normal recurring nature) 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. 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 notes 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, 2022, included in the Company’s annual report on Form 10-K (“2022 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 (loss).
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, off-balance sheet commitments 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.
Allowance for Credit Losses	Allowance for Credit Losses . Accounting Standards Update (“ASU”) No. 2022-02 eliminated the accounting guidance for troubled debt restructurings (“TDRs”) and enhanced disclosure requirements for certain loan modifications. The Company may provide modifications to borrowers experiencing financial difficulty in the form of principal forgiveness, interest rate reductions, other-than-insignificant payment delays, or term extensions. When principal forgiveness is provided, the amount of forgiveness is charged-off against the allowance for credit losses. In some cases, the Company may provide multiple types of concessions on one loan. The Company will evaluate whether the modification represents a new loan or a continuation of an existing loan. The Company assesses all loan modifications to determine whether they were made to borrowers experiencing financial difficulty.
Reclassifications	Reclassifications . Certain amounts previously reported have been reclassified to conform to the current presentation. Such reclassifications had no effect on prior year net income or stockholders’ equity.
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. 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 (“ASC”) in order to codify 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 U.S. 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 registrants with the first fiscal year ending after December 15, 2021, while Guide 3 was rescinded effective January 1, 2023. Implementation of this ASU did not materially impact the Company’s financial statement disclosures. ASU No. 2021-08, Business Combinations (Topic 805) — Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. The amendments in this Update affect accounting for acquired revenue contracts with customers in a business combination by addressing diversity in practice and inconsistency related to recognition of an acquired contract liability and payment terms and their effect on subsequent revenue recognized by the acquirer. The ASU is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Implementation of this ASU did not materially impact the Company’s financial statements or disclosures. ASU No. 2022-01, Derivatives and Hedging (Topic 815) — Fair Value Hedging - Portfolio Layer Method. The amendments in this Update clarify the accounting for and promote consistency in the reporting of hedge basis adjustments applicable to both a single hedged layer and multiple hedged layers. Additionally, this Update allows entities to elect to apply the portfolio layer method of hedge accounting in accordance with Topic 815. The ASU is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Implementation of this ASU did not materially impact the Company’s financial statements or disclosures. ASU No. 2022-02, Financial Instruments - Credit Losses (Topic 326) — Troubled Debt Restructurings and Vintage Disclosures. The amendments in this Update eliminate the accounting guidance for TDRs by creditors in Subtopic 310-40, Receivables—Troubled Debt Restructurings by Creditors, while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. Specifically, rather than applying the recognition and measurement guidance for TDRs, an entity must apply the loan refinancing and restructuring guidance in paragraphs 310-20-35-9 through 35-11 to determine whether a modification results in a new loan or a continuation of an existing loan. For public business entities, the amendments in this Update require that an entity disclose current-period gross write-offs by year of origination for financing receivables and net investments in leases within the scope of Subtopic 326-20, Financial Instruments—Credit Losses—Measured at Amortized Cost. The ASU is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Implementation of this ASU did not materially impact the Company’s financial statements or disclosures. ASU No. 2022-06, Reference Rate Reform (Topic 848) - Deferral of the Sunset Date of Topic 848 — The amendments in this Update provide temporary relief during the transition period in complying with Update No. 2020-04, Reference Rate Reform (Topic 848) - Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional guidance to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The Board included a sunset provision within Topic 848 based on expectations of when the London Interbank Offered Rate (LIBOR) would cease being published. At the time that Update 2020-04 was issued, the UK Financial Conduct Authority (FCA) had established its intent that it would no longer be necessary to persuade, or compel, banks to submit to LIBOR after December 31, 2021. As a result, the sunset provision was set for December 31, 2022 - 12 months after the expected cessation date of all currencies and tenors of LIBOR. In March 2021, the FCA announced that the intended cessation date of the overnight 1-, 3-, 6-, and 12-month tenors of USD LIBOR would be June 30, 2023, which is beyond the current sunset date of Topic 848. Because the relief in Topic 848 may not cover a period of time during which a significant number of modifications may take place, the amendments in this Update defer the sunset date of Topic 848 from December 31, 2022, to December 31, 2024, after which entities will no longer be permitted to apply the relief in Topic 848. The ASU is effective immediately. Implementation of this ASU did not materially impact the Company's financial statements or disclosures. Effect of Newly Issued But Not Yet Effective Accounting Standards ASU No. 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method — The amendments in this Update allow entities to elect to account for equity investments made primarily for the purpose of receiving income tax credits using the proportional amortization method, regardless of the tax credit program through which the investment earns income tax credits, if certain conditions are met. The amendments in this Update also eliminate certain low income housing tax credits (“LIHTC”)-specific guidance to align the accounting more closely for LIHTCs with the accounting for other equity investments in tax credit structures and require that the delayed equity contribution guidance apply only to tax equity investments accounted for using the proportional amortization method. The ASU is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Implementation of this ASU is not expected to materially impact the Company's financial statements or disclosures.
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. These estimates can be inherently uncertain. 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 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. For level 3 securities, the Company determines the fair value of the instruments based on their callability, putability and prepay optionality. Putable instruments are valued at book value, non-putable instruments are priced mainly using a present value calculation based on the spread to the yield curve. Mortgage Servicing Rights (“MSRs”) Derivatives Fair values for interest rate swap agreements and interest rate lock commitments are based upon the amounts that would be required to settle the contracts. Fair values for risk participations, forward mortgage backed security purchases or loan sale commitments and future contracts to purchase United States treasury notes are based on the fair values of the underlying mortgage loans or securities and the probability of such commitments being exercised. Significant management judgment and estimation is required in determining these fair value measurements. 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 Topic 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 creditworthiness of each issuer. Credit spreads ranged from 83 to 227 basis points at both September 30, 2023, and December 31, 2022. 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. Fair Value of Assets Recorded on a Nonrecurring Basis Equity Securities without Readily Determinable Fair Values Equity securities without readily determinable fair values totaled $63.8 million and $67.4 million at September 30, 2023, and December 31, 2022, 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. During the three months ended September 30, 2023, the Company observed a price change in multiple orderly transactions for identical equity securities and adjusted the Company’s basis upwards in one of the Company’s equity securities by $10.1 million. Government National Mortgage Association Repurchase Asset The Company had zero and $24.6 million Government National Mortgage Association (“GNMA”) repurchase assets included in loans held for sale on the consolidated balance sheets at September 30, 2023, and December 31, 2022, respectively. The assets were 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. During the second half of 2022, the Company entered into an agreement to sell its GNMA MSR portfolio, which met all final sale conditions in early 2023. The Company sold $1.8 million in GNMA MSR, with no significant additional gain or loss realized, and derecognized the related GNMA repurchase asset and offsetting liability during the quarter ended March 31, 2023. Individually Evaluated 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 include estimating the fair value using the fair value of the collateral for collateral-dependent loans and a discounted cash flow methodology for other evaluated loans that are not collateral dependent. If the loan is identified as collateral-dependent, the fair value method of measuring the amount of credit loss is utilized. Evaluating the fair value of the collateral for collateral-dependent loans requires obtaining a current independent appraisal of the collateral and applying a discount factor to the value. If the loan is not collateral-dependent, the discounted cash flow method is utilized, which involves assumptions and judgments as to credit risk, prepayment risk, liquidity risk, default rates, loss severity, payment speeds, collateral values and discount rate. Loans that have experienced a credit loss with specific allocated losses are 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 $15.9 million and $20.7 million at September 30, 2023, and December 31, 2022, 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 interest rate swap agreements under which the Company receives interest at a variable rate and pays at a fixed rate. The derivative instruments represented by these swap agreements are designated as cash flow hedges of the Company’s forecasted variable cash flows under a variable-rate term borrowing agreements. During the terms of the swap agreements, the effective portion of changes in the fair value of the derivative instruments are recorded in accumulated other comprehensive (loss) 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 derivatives recognized directly in earnings. The entire swap fair value will be reclassified into earnings before the expiration dates of the swap agreements. Derivatives Not Designated as Hedges Customer interest rate derivative program The Company offers certain derivatives products, primarily interest rate swaps, directly to qualified commercial banking customers to facilitate their risk management strategies. In most 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 and U.S. Treasury future contracts.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2023
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: 2023 2022 2023 2022 Net income $ 24,313 $ 16,243 $ 70,375 $ 58,237 Denominator: Weighted average common shares outstanding 30,856,649 28,298,984 30,797,399 25,263,681 Dilutive effect of stock-based awards 87,211 182,635 105,823 103,126 Weighted average diluted common shares outstanding 30,943,860 28,481,619 30,903,222 25,366,807 Basic earnings per common share $ 0.79 $ 0.57 $ 2.29 $ 2.31 Diluted earnings per common share 0.79 0.57 2.28 2.30

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2023
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, 2023 Amortized Gross Gross Fair Allowance for Credit Losses Net Carrying Amount Available for sale: State and municipal securities $ 382,677 $ 148 $ (66,474) $ 316,351 $ — $ 316,351 Corporate bonds 84,221 — (9,931) 74,290 — 74,290 U.S. government and agency securities 111,812 3 (9,024) 102,791 — 102,791 Commercial mortgage-backed securities 104,745 — (14,725) 90,020 — 90,020 Residential mortgage-backed securities 588,373 — (87,625) 500,748 — 500,748 Commercial collateralized mortgage obligations 39,672 — (5,723) 33,949 — 33,949 Residential collateralized mortgage obligations 154,301 — (25,868) 128,433 — 128,433 Asset-backed securities 44,855 1 (599) 44,257 — 44,257 Total $ 1,510,656 $ 152 $ (219,969) $ 1,290,839 $ — $ 1,290,839 Held to maturity: State and municipal securities $ 11,680 $ — $ (675) $ 11,005 $ (890) $ 10,790 Securities carried at fair value through income: State and municipal securities (1) $ 6,815 $ — $ — $ 6,772 $ — $ 6,772 December 31, 2022 Available for sale: State and municipal securities $ 447,086 $ 996 $ (58,605) $ 389,477 $ — $ 389,477 Corporate bonds 89,449 — (7,191) 82,258 — 82,258 U.S. government and agency securities 264,755 4 (16,339) 248,420 — 248,420 Commercial mortgage-backed securities 105,536 — (13,593) 91,943 — 91,943 Residential mortgage-backed securities 649,765 — (77,462) 572,303 — 572,303 Commercial collateralized mortgage obligations 44,330 — (5,517) 38,813 — 38,813 Residential collateralized mortgage obligations 170,136 — (23,766) 146,370 — 146,370 Asset-backed securities 73,918 — (2,018) 71,900 — 71,900 Total $ 1,844,975 $ 1,000 $ (204,491) $ 1,641,484 $ — $ 1,641,484 Held to maturity: State and municipal securities $ 12,174 $ 278 $ (482) $ 11,970 $ (899) $ 11,275 Securities carried at fair value through income: State and municipal securities (1) $ 7,100 $ — $ — $ 6,368 $ — $ 6,368 ________________________ (1) Securities carried at fair value through income have no unrealized gains or losses at the consolidated balance sheet dates 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 Unrealized Losses	Securities with unrealized losses at September 30, 2023, and December 31, 2022, 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, 2023 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available for sale: State and municipal securities $ 8,335 $ (493) $ 281,606 $ (65,981) $ 289,941 $ (66,474) Corporate bonds 5,624 (376) 67,667 (9,555) 73,291 (9,931) U.S. government and agency securities — — 102,465 (9,024) 102,465 (9,024) Commercial mortgage-backed securities — — 90,020 (14,725) 90,020 (14,725) Residential mortgage-backed securities 59 (8) 500,689 (87,617) 500,748 (87,625) Commercial collateralized mortgage obligations — — 33,949 (5,723) 33,949 (5,723) Residential collateralized mortgage obligations — — 128,433 (25,868) 128,433 (25,868) Asset-backed securities 5,222 (34) 36,626 (565) 41,848 (599) Total $ 19,240 $ (911) $ 1,241,455 $ (219,058) $ 1,260,695 $ (219,969) Held to maturity: State and municipal securities $ 5,105 $ (62) $ 5,900 $ (613) $ 11,005 $ (675) December 31, 2022 Available for sale: State and municipal securities $ 171,079 $ (14,947) $ 175,011 $ (43,658) $ 346,090 $ (58,605) Corporate bonds 69,618 (5,581) 11,640 (1,610) 81,258 (7,191) U.S. government and agency securities 152,471 (7,373) 95,576 (8,966) 248,047 (16,339) Commercial mortgage-backed securities 37,083 (3,416) 54,860 (10,177) 91,943 (13,593) Residential mortgage-backed securities 231,848 (20,465) 340,455 (56,997) 572,303 (77,462) Commercial collateralized mortgage obligations 21,999 (2,516) 16,814 (3,001) 38,813 (5,517) Residential collateralized mortgage obligations 48,749 (3,928) 97,621 (19,838) 146,370 (23,766) Asset-backed securities 62,047 (1,528) 9,853 (490) 71,900 (2,018) Total $ 794,894 $ (59,754) $ 801,830 $ (144,737) $ 1,596,724 $ (204,491) Held to maturity: State and municipal securities $ 6,518 $ (482) $ — $ — $ 6,518 $ (482)
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: 2023 Balance at January 1, 2023 $ 899 Credit loss expense (9) Balance at September 30, 2023 $ 890 Balance at January 1, 2022 $ 167 Credit loss expense 725 Balance at September 30, 2022 $ 892
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) 2023 2022 Proceeds from sales/calls $ 214,302 $ 484,421 Gross realized gains 596 3,766 Gross realized losses (7,625) (2,102)
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, 2023, 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, 2023 Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ — $ — $ 64,008 $ 63,004 Due after one year through five years — — 96,426 87,840 Due after five years through ten years 5,167 5,105 197,466 169,927 Due after ten years 6,513 5,900 220,810 172,661 Commercial mortgage-backed securities — — 104,745 90,020 Residential mortgage-backed securities — — 588,373 500,748 Commercial collateralized mortgage obligations — — 39,672 33,949 Residential collateralized mortgage obligations — — 154,301 128,433 Asset-backed securities — — 44,855 44,257 Total $ 11,680 $ 11,005 $ 1,510,656 $ 1,290,839
Securities Pledged as Collateral	The following table presents carrying amounts of securities pledged as collateral for deposits and repurchase agreements at the periods presented. (Dollars in thousands) September 30, 2023 December 31, 2022 Carrying value of securities pledged to secure public deposits $ 412,829 $ 769,691 Carrying value of securities pledged to repurchase agreements 5,530 6,797

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2023
Receivables [Abstract]
Schedule of Loans	Loans consist of the following: (Dollars in thousands) September 30, 2023 December 31, 2022 Loans held for sale $ 14,944 $ 49,957 LHFI: Loans secured by real estate: Owner occupied commercial real estate $ 932,109 $ 843,006 Non-owner occupied commercial real estate 1,503,782 1,461,672 Total commercial real estate 2,435,891 2,304,678 Construction/land/land development 1,076,756 945,625 Residential real estate 1,688,169 1,477,538 Total real estate 5,200,816 4,727,841 Commercial and industrial 2,058,073 2,051,161 Mortgage warehouse lines of credit 286,293 284,867 Consumer 22,881 26,153 Total LHFI (1) 7,568,063 7,090,022 Less: Allowance for loan credit losses (“ALCL”) 95,177 87,161 LHFI, net $ 7,472,886 $ 7,002,861 ____________________________ (1) Includes unamortized purchase accounting adjustment and net deferred loan fees of $11.5 million and $14.2 million at September 30, 2023, and December 31, 2022, respectively. As of September 30, 2023, and December 31, 2022, the remaining purchase accounting net loan discount was $179,000 and $2.2 million, 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, 2023, and gross charge-offs for the nine months ended September 30, 2023, excluding loans held for sale. Loans acquired are shown in the table by origination year, not merger date. The Company had an immaterial amount of revolving loans converted to term loans at September 30, 2023. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: Pass $ 269,854 $ 888,014 $ 485,198 $ 257,683 $ 223,348 $ 209,716 $ 76,329 $ 2,410,142 Special mention — — — — — 7,996 — 7,996 Classified 745 1,916 3,239 1,595 587 9,671 — 17,753 Total commercial real estate loans $ 270,599 $ 889,930 $ 488,437 $ 259,278 $ 223,935 $ 227,383 $ 76,329 $ 2,435,891 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 42 $ — $ 42 Construction/land/land development: Pass $ 203,868 $ 492,097 $ 235,360 $ 30,838 $ 17,281 $ 25,621 $ 35,821 $ 1,040,886 Special mention — 10,718 20,932 — — — — 31,650 Classified 1 180 54 245 667 754 2,319 4,220 Total construction/land/land development loans $ 203,869 $ 502,995 $ 256,346 $ 31,083 $ 17,948 $ 26,375 $ 38,140 $ 1,076,756 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Residential real estate: Pass $ 279,903 $ 517,755 $ 305,358 $ 242,179 $ 99,778 $ 149,748 $ 83,182 $ 1,677,903 Special mention 250 — — 145 — 309 — 704 Classified 342 1,988 1,471 420 1,378 3,853 110 9,562 Total residential real estate loans $ 280,495 $ 519,743 $ 306,829 $ 242,744 $ 101,156 $ 153,910 $ 83,292 $ 1,688,169 Current period year-to-date gross charge-offs $ — $ — $ — $ 5 $ — $ 22 $ — $ 27 Commercial and industrial: Pass $ 252,933 $ 328,833 $ 183,124 $ 40,747 $ 61,655 $ 53,379 $ 1,091,475 $ 2,012,146 Special mention 524 9,918 — 96 — — 3,026 13,564 Classified 2,492 1,488 8,724 313 1,005 430 17,911 32,363 Total commercial and industrial loans $ 255,949 $ 340,239 $ 191,848 $ 41,156 $ 62,660 $ 53,809 $ 1,112,412 $ 2,058,073 Current period year-to-date gross charge-offs $ 111 $ 263 $ 40 $ 141 $ — $ 411 $ 7,104 $ 8,070 Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 286,293 $ 286,293 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 8,423 $ 4,473 $ 1,659 $ 510 $ 522 $ 58 $ 7,113 $ 22,758 Classified 20 72 27 — 3 — 1 123 Total consumer loans $ 8,443 $ 4,545 $ 1,686 $ 510 $ 525 $ 58 $ 7,114 $ 22,881 Current period year-to-date gross charge-offs $ — $ 90 $ 7 $ — $ — $ — $ 10 $ 107 The following table reflects recorded investments in loans by credit quality indicator and origination year at December 31, 2022, and gross charge-offs for the year ended December 31, 2022, excluding loans held for sale. Loans acquired are shown in the table by origination year, not merger date. The Company had an immaterial amount of revolving loans converted to term loans at December 31, 2022. Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Total Commercial real estate: Pass $ 885,244 $ 502,287 $ 283,368 $ 230,040 $ 168,079 $ 131,411 $ 69,952 $ 2,270,381 Special mention — — — — 8,174 1,359 1,558 11,091 Classified 930 1,795 1,551 4,014 2,965 11,901 50 23,206 Total commercial real estate loans $ 886,174 $ 504,082 $ 284,919 $ 234,054 $ 179,218 $ 144,671 $ 71,560 $ 2,304,678 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 166 $ — $ 166 Construction/land/land development: Pass $ 445,943 $ 320,951 $ 58,880 $ 27,381 $ 27,753 $ 5,253 $ 48,436 $ 934,597 Special mention 6,217 — — — — — — 6,217 Classified 180 100 286 38 160 1,708 2,339 4,811 Total construction/land/land development loans $ 452,340 $ 321,051 $ 59,166 $ 27,419 $ 27,913 $ 6,961 $ 50,775 $ 945,625 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Residential real estate: Pass $ 535,739 $ 308,070 $ 261,293 $ 107,530 $ 48,652 $ 123,052 $ 80,375 $ 1,464,711 Special mention — — 390 — — — — 390 Classified 2,227 2,764 90 1,494 1,064 4,653 145 12,437 Total residential real estate loans $ 537,966 $ 310,834 $ 261,773 $ 109,024 $ 49,716 $ 127,705 $ 80,520 $ 1,477,538 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 91 $ — $ 91 Commercial and industrial: Pass $ 454,813 $ 239,411 $ 82,168 $ 75,043 $ 40,534 $ 29,745 $ 1,083,221 $ 2,004,935 Special mention 8,683 2,563 — — 187 — 1,620 13,053 Classified 3,641 11,455 188 1,978 1,224 3 14,684 33,173 Total commercial and industrial loans $ 467,137 $ 253,429 $ 82,356 $ 77,021 $ 41,945 $ 29,748 $ 1,099,525 $ 2,051,161 Current period year-to-date gross charge-offs $ 28 $ 726 $ 48 $ 869 $ 337 $ 1,103 $ 5,348 $ 8,459 Term Loans Amortized Cost Basis by Origination Year (Dollars in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Total Mortgage Warehouse Lines of Credit: Pass $ — $ — $ — $ — $ — $ — $ 282,298 $ 282,298 Special mention — — — — — — 2,042 2,042 Classified — — — — — — 527 527 Total mortgage warehouse lines of credit $ — $ — $ — $ — $ — $ — $ 284,867 $ 284,867 Current period year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Consumer: Pass $ 9,730 $ 3,822 $ 1,210 $ 784 $ 135 $ 15 $ 10,408 $ 26,104 Classified 22 19 — 6 — — 2 49 Total consumer loans $ 9,752 $ 3,841 $ 1,210 $ 790 $ 135 $ 15 $ 10,410 $ 26,153 Current period year-to-date gross charge-offs $ 3 $ 27 $ 7 $ 2 $ 1 $ 1 $ 2 $ 43
Loan Portfolio Aging Analysis	The following tables present the Company’s loan portfolio aging analysis at the dates indicated: September 30, 2023 (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 $ — $ — $ 136 $ 136 $ 2,435,755 $ 2,435,891 $ — Construction/land/land development 1,085 23 55 1,163 1,075,593 1,076,756 — Residential real estate 261 3,076 4,425 7,762 1,680,407 1,688,169 — Total real estate 1,346 3,099 4,616 9,061 5,191,755 5,200,816 — Commercial and industrial 918 6,746 3,509 11,173 2,046,900 2,058,073 — Mortgage warehouse lines of credit — — — — 286,293 286,293 — Consumer 88 10 15 113 22,768 22,881 — Total LHFI $ 2,352 $ 9,855 $ 8,140 $ 20,347 $ 7,547,716 $ 7,568,063 $ — December 31, 2022 (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 $ 31 $ — $ 104 $ 135 $ 2,304,543 $ 2,304,678 $ — Construction/land/land development 854 — 17 871 944,754 945,625 — Residential real estate 1,814 891 450 3,155 1,474,383 1,477,538 — Total real estate 2,699 891 571 4,161 4,723,680 4,727,841 — Commercial and industrial 3,878 1,972 544 6,394 2,044,767 2,051,161 — Mortgage warehouse lines of credit — — — — 284,867 284,867 — Consumer 350 16 11 377 25,776 26,153 — Total LHFI $ 6,927 $ 2,879 $ 1,126 $ 10,932 $ 7,079,090 $ 7,090,022 $ —
Allowance for Loan Losses by Portfolio Segment	The following tables detail activity in the ALCL by portfolio segment. Accrued interest of $33.0 million and $21.9 million was not included in the book value for the purposes of calculating the allowance at September 30, 2023 and 2022, 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, 2023 Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total (Dollars in thousands) Beginning balance $ 20,839 $ 8,729 $ 9,018 $ 54,173 $ 817 $ 777 $ 94,353 Charge-offs — — — 3,187 — 15 3,202 Recoveries 28 3 3 477 — 5 516 Provision (1) (1,758) 613 1,048 3,990 (359) (24) 3,510 Ending balance $ 19,109 $ 9,345 $ 10,069 $ 55,453 $ 458 $ 743 $ 95,177 Average balance $ 2,428,969 $ 1,044,180 $ 1,663,291 $ 2,024,675 $ 376,275 $ 23,704 $ 7,561,094 Net charge-offs to loan average balance (annualized) — % — % — % 0.53 % — % 0.17 % 0.14 % __________________________ (1) The $3.5 million provision for credit losses on the consolidated statements of income includes a $3.5 million provision for loan credit losses, a $50,000 provision for off-balance sheet commitments and $45,000 net benefit provision for held to maturity securities credit losses for the three months ended September 30, 2023. Three Months Ended September 30, 2022 Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total (Dollars in thousands) Beginning balance $ 16,112 $ 4,707 $ 5,851 $ 35,477 $ 459 $ 517 $ 63,123 Allowance for loan credit losses - BTH merger (1) 1 — — 5,525 — 1 5,527 Charge-offs — — — 1,618 — 10 1,628 Recoveries 17 200 6 325 — 2 550 Provision (2) 1,901 2,159 1,898 9,349 97 383 15,787 Ending balance $ 18,031 $ 7,066 $ 7,755 $ 49,058 $ 556 $ 893 $ 83,359 Average balance $ 2,046,411 $ 760,682 $ 1,249,746 $ 1,816,912 $ 491,584 $ 24,137 $ 6,389,472 Net charge-offs to loan average balance (annualized) — % (0.10) % — % 0.28 % — % 0.13 % 0.07 % ____________________________ (1) Excluded from the allowance is $10.8 million in PCD loans that were acquired in the merger with BTH that were added to the allowance and immediately written off. (2) The $16.9 million provision for credit losses on the consolidated statements of income includes a $15.8 million provision for loan losses, a $1.2 million provision for off-balance sheet commitments and no provision for held to maturity securities credit losses for the three months ended September 30, 2022. Nine Months Ended September 30, 2023 Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total (Dollars in thousands) Beginning balance $ 19,772 $ 7,776 $ 8,230 $ 50,148 $ 379 $ 856 $ 87,161 Charge-offs 42 — 27 8,070 — 107 8,246 Recoveries 113 3 13 2,189 — 12 2,330 Provision (1) (734) 1,566 1,853 11,186 79 (18) 13,932 Ending balance $ 19,109 $ 9,345 $ 10,069 $ 55,453 $ 458 $ 743 $ 95,177 Average balance $ 2,393,028 $ 997,296 $ 1,599,803 $ 2,051,272 $ 329,205 $ 24,836 $ 7,395,440 Net charge-offs to loan average balance (annualized) — % — % — % 0.38 % — % 0.51 % 0.11 % _________________________ (1) The $14.0 million provision for credit losses on the consolidated statement of income includes a $13.9 million provision for loan losses, a $95,000 provision for off-balance sheet commitments and a $9,000 net benefit provision for held to maturity securities credit losses for the nine months ended September 30, 2023. Nine Months Ended September 30, 2022 Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total (Dollars in thousands) Beginning balance $ 13,425 $ 4,011 $ 6,116 $ 40,146 $ 340 $ 548 $ 64,586 Allowance for loan credit losses - BTH merger (1) 1 — — 5,525 — 1 5,527 Charge-offs 166 — 75 5,943 — 38 6,222 Recoveries 19 200 98 1,505 — 15 1,837 Provision (2) 4,752 2,855 1,616 7,825 216 367 17,631 Ending balance $ 18,031 $ 7,066 $ 7,755 $ 49,058 $ 556 $ 893 $ 83,359 Average balance $ 1,865,658 $ 638,683 $ 1,042,397 $ 1,548,419 $ 453,658 $ 18,887 $ 5,567,702 Net charge-offs to loan average balance (annualized) 0.01 % (0.04) % — % 0.38 % — % 0.16 % 0.11 % _________________________ (1) Excluded from the allowance is $10.8 million in PCD loans that were acquired in the merger with BTH that were added to the allowance and immediately written off. (2) The $20.1 million provision for credit losses on the consolidated statements of income includes a $17.6 million provision for loan losses, a $1.7 million provision for off-balance sheet commitments and a $725,000 provision for held to maturity securities credit losses for the nine months ended September 30, 2022.
Financing Receivable Individually Evaluated to Determine Expected Credit Losses and ACL Allocation	The following table presents the amortized cost basis of collateral dependent loans, which are individually evaluated to determine expected credit losses, and the related ALCL allocated to these loans. September 30, 2023 (Dollars in thousands) Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total Real Estate $ 752 $ — $ 3,799 $ — $ — $ — $ 4,551 Equipment — — — 152 — — 152 Other — — — 529 — — 529 Total $ 752 $ — $ 3,799 $ 681 $ — $ — $ 5,232 ALCL Allocation $ — $ — $ — $ — $ — $ — $ — December 31, 2022 (Dollars in thousands) Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total Real Estate $ 273 $ 97 $ 6,731 $ — $ — $ — $ 7,101 Accounts Receivable — — — 831 — — 831 Equipment — — — 285 — — 285 Total $ 273 $ 97 $ 6,731 $ 1,116 $ — $ — $ 8,217 ALCL Allocation $ — $ — $ — $ 738 $ — $ — $ 738
Non-performing (Nonaccrual) Loans Held for Investment	Nonaccrual LHFI was as follows: Nonaccrual With No Total Nonaccrual (Dollars in thousands) Loans secured by real estate: September 30, 2023 December 31, 2022 September 30, 2023 December 31, 2022 Commercial real estate $ 900 $ 435 $ 942 $ 526 Construction/land/land development — 59 235 270 Residential real estate 5,363 7,023 13,236 7,712 Total real estate 6,263 7,517 14,413 8,508 Commercial and industrial 4,592 527 17,072 1,383 Consumer — — 123 49 Total nonaccrual loans $ 10,855 $ 8,044 $ 31,608 $ 9,940
Loans Classified as Troubled Debt Restructurings (TDRs)	The tables below summarize modifications made to borrowers experiencing financial difficulty by loan and modification type during the dates indicated. Three Months Ended September 30, 2023 Term Extension Combination: Other-Than-Insignificant Payment Delay (Dollars in thousands) Amortized Cost % of Loans Amortized Cost % of Loans Amortized Cost % of Loans Loans secured by real estate: Commercial real estate $ 7,507 0.31 % $ — — % $ 427 0.02 % Construction/land/land development 3,807 0.35 — — — — Residential real estate 745 0.04 — — — — Total real estate 12,059 0.23 — — 427 0.01 Commercial and industrial 13,935 0.68 923 0.04 53 — Total $ 25,994 0.34 $ 923 0.01 $ 480 0.01 Nine Months Ended September 30, 2023 Term Extension Combination: Other-Than-Insignificant Payment Delay (Dollars in thousands) Amortized Cost % of Loans Amortized Cost % of Loans Amortized Cost % of Loans Loans secured by real estate: Commercial real estate $ 7,853 0.32 % $ — — % $ 427 0.02 % Construction/land/land development 3,808 0.35 — — — — Residential real estate 2,477 0.15 — — — — Total real estate 14,138 0.27 — — 427 0.01 Commercial and industrial 15,562 0.76 1,091 0.05 53 — Total $ 29,700 0.39 $ 1,091 0.01 $ 480 0.01 The following table describes the financial effect of the modification made to borrowers experiencing financial difficulty during three and nine months ended September 30, 2023, respectively. Three Months Ended September 30, 2023 Interest Rate Reduction Term Extension Other-Than-Insignificant Payment Delay Commercial real estate N/A Added a weighted average 10.1 months to the life of the modified loans Delayed payment of weighted average 6 months Construction/land/land development N/A Added a weighted average 8.6 months to the life of the modified loans N/A Residential real estate N/A Added a weighted average 18.4 months to the life of the modified loans N/A Commercial and industrial Reduced weighted average contractual interest rate from 10.1% to 9.5% Added a weighted average 6.7 months to the life of the modified loans Delayed payment of weighted average 6 months Nine Months Ended September 30, 2023 Interest Rate Reduction Term Extension Other-Than-Insignificant Payment Delay Commercial real estate N/A Added a weighted average 12.1 months to the life of the modified loans Delayed payment of weighted average 6 months Construction/land/land development N/A Added a weighted average 13.1 months to the life of the modified loans N/A Residential real estate N/A Added a weighted average 9.3 months to the life of the modified loans N/A Commercial and industrial Reduced weighted average contractual interest rate from 9.9% to 9.0% Added a weighted average 9.0 months to the life of the modified loans Delayed payment of weighted average 6 months The following table depicts the performance of loans that have been modified Payment Status (Amortized Cost Basis) September 30, 2023 (Dollars in thousands) Current 30-89 Days Past Due 90 Days or More Past Due Loans secured by real estate: Commercial real estate $ 8,280 $ — $ — Construction/land/land development 3,808 — — Residential real estate 2,195 282 — Total real estate 14,283 282 — Commercial and industrial 16,705 — — Total LHFI $ 30,988 $ 282 $ —

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2023
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, 2023, and December 31, 2022, 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 2023 or 2022. September 30, 2023 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 264,912 $ 51,439 $ 316,351 Corporate bonds — 73,290 1,000 74,290 U.S. treasury securities 78,963 — — 78,963 U.S. government agency securities — 23,828 — 23,828 Commercial mortgage-backed securities — 90,020 — 90,020 Residential mortgage-backed securities — 500,748 — 500,748 Commercial collateralized mortgage obligations — 33,949 — 33,949 Residential collateralized mortgage obligations — 128,433 — 128,433 Asset-backed securities — 44,257 — 44,257 Securities available for sale 78,963 1,159,437 52,439 1,290,839 Securities carried at fair value through income — — 6,772 6,772 Loans held for sale — 14,944 — 14,944 Mortgage servicing rights — — 19,189 19,189 Other assets - derivatives — 29,493 — 29,493 Total recurring fair value measurements - assets $ 78,963 $ 1,203,874 $ 78,400 $ 1,361,237 Other liabilities - derivatives $ — $ (28,035) $ — $ (28,035) Total recurring fair value measurements - liabilities $ — $ (28,035) $ — $ (28,035) December 31, 2022 (Dollars in thousands) Level 1 Level 2 Level 3 Total State and municipal securities $ — $ 334,708 $ 54,769 $ 389,477 Corporate bonds — 81,258 1,000 82,258 U.S. treasury securities 110,645 — — 110,645 U.S. government agency securities — 137,775 — 137,775 Commercial mortgage-backed securities — 91,943 — 91,943 Residential mortgage-backed securities — 572,303 — 572,303 Commercial collateralized mortgage obligations — 38,813 — 38,813 Residential collateralized mortgage obligations — 146,370 — 146,370 Asset-backed securities — 71,900 — 71,900 Securities available for sale 110,645 1,475,070 55,769 1,641,484 Securities carried at fair value through income — — 6,368 6,368 Loans held for sale — 25,389 — 25,389 Mortgage servicing rights — — 20,824 20,824 Other assets - derivatives — 26,733 — 26,733 Total recurring fair value measurements - assets $ 110,645 $ 1,527,192 $ 82,961 $ 1,720,798 Other liabilities - derivatives $ — $ (25,275) $ — $ (25,275) Total recurring fair value measurements - liabilities $ — $ (25,275) $ — $ (25,275)
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, 2023 and 2022, are summarized as follows: (Dollars in thousands) MSRs Securities Available for Sale Securities at Fair Value Through Income Balance at January 1, 2023 $ 20,824 $ 55,769 $ 6,368 Gain (loss) recognized in earnings: Mortgage banking revenue (1) (485) — — Other noninterest income — — 689 Loss recognized in AOCI — (703) — Purchases, issuances, sales and settlements: Originations 656 — — Sales (1,806) — — Settlements — (2,627) (285) Balance at September 30, 2023 $ 19,189 $ 52,439 $ 6,772 ___________________________ (1) Total mortgage banking revenue includes changes in fair value due to market changes and run-off. (Dollars in thousands) MSRs Securities Available for Sale Securities at Fair Value Through Income Balance at January 1, 2022 $ 16,220 $ 41,461 $ 7,497 Gain (loss) recognized in earnings: Mortgage banking revenue (1) 2,409 — — Other noninterest income — — (875) Loss recognized in AOCI — (5,048) — Purchases, issuances, sales and settlements: Originations 1,926 — — Purchases — 25,112 — Acquired in BTH merger 1,099 5,000 — Settlements — (3,323) (275) Balance at September 30, 2022 $ 21,654 $ 63,202 $ 6,347 ___________________________ (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, 2023 December 31, 2022 Range Weighted Average (1) Range Weighted Average (1) Prepayment speeds 7.31% - 7.89% 7.64 % 7.65% - 9.20% 8.11 % Discount rates 10.25 - 12.75 10.31 9.50 - 22.07 12.55 __________________________ (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, 2023 (Dollars in thousands) Aggregate Fair Value Principal Balance/Amortized Cost Difference Loans held for sale (1) $ 14,944 $ 14,715 $ 229 Securities carried at fair value through income 6,772 6,815 (43) Total $ 21,716 $ 21,530 $ 186 ____________________________ (1) There were no loans held for sale that were designated as nonaccrual or 90 days or more past due at September 30, 2023. December 31, 2022 (Dollars in thousands) Aggregate Fair Value Principal Balance/Amortized Cost Difference Loans held for sale (1) $ 25,389 $ 24,946 $ 443 Securities carried at fair value through income 6,368 7,100 (732) Total $ 31,757 $ 32,046 $ (289) ____________________________ (1) $3.9 million of loans held for sale were designated as nonaccrual or 90 days or more past due at December 31, 2022. Of this balance, $3.3 million was guaranteed by U.S. Government agencies. Changes in the fair value of assets for which the Company elected the fair value option are classified in the consolidated statements 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: 2023 2022 2023 2022 Mortgage banking revenue (loans held for sale) $ (22) $ (309) $ (214) $ (741) Other income: Securities carried at fair value through income 666 (282) 689 (875) Total fair value option impact on noninterest income (1) $ 644 $ (591) $ 475 $ (1,616) ____________________________ (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, 2023 December 31, 2022 Financial assets: Level 1 inputs: Carrying Estimated Carrying Estimated Cash and cash equivalents $ 305,278 $ 305,278 $ 358,972 $ 358,972 Level 2 inputs: Non-marketable equity securities held in other financial institutions 63,842 63,842 67,378 67,378 GNMA repurchase asset — — 24,569 24,569 Accrued interest and loan fees receivable 41,231 41,231 38,136 38,136 Level 3 inputs: Securities held to maturity 10,790 11,005 11,275 11,970 LHFI, net 7,472,886 7,094,772 7,002,861 6,835,770 Financial liabilities: Level 2 inputs: Deposits 8,374,488 8,358,211 7,775,702 7,753,966 FHLB advances and other borrowings 12,213 11,679 639,230 639,103 Subordinated indebtedness 196,825 187,369 201,765 181,624 Accrued interest payable 14,126 14,126 3,917 3,917

Mortgage Banking (Tables)

Mortgage Banking (Tables)	9 Months Ended
	Sep. 30, 2023
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 2023 2022 2023 2022 Origination $ 124 $ 207 $ 384 $ 641 Gain on sale of loans held for sale 757 636 2,380 4,477 Originations of MSRs 225 462 656 1,926 Servicing 915 1,446 2,840 4,306 Total gross mortgage revenue 2,021 2,751 6,260 11,350 MSR valuation adjustments, net (1) (122) (2,034) (485) 2,409 Mortgage HFS and pipeline fair value adjustment (110) (410) (27) (971) MSR hedge impact (897) (1,236) (1,673) (7,267) Mortgage banking revenue $ 892 $ (929) $ 4,075 $ 5,521 ____________________________ (1) Based upon broker estimate, the Company recorded a $2.0 million impairment on the held for sale GNMA MSR portfolio during the quarter ended September 30, 2022.
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) 2023 2022 2023 2022 Balance at beginning of period $ 19,086 $ 22,127 $ 20,824 $ 16,220 Servicing acquired in BTH merger — 1,099 — 1,099 Addition of servicing rights 225 462 656 1,926 Settlement of sale of GNMA MSR — — (1,806) — Valuation adjustment, net of amortization (122) (2,034) (485) 2,409 Balance at end of period $ 19,189 $ 21,654 $ 19,189 $ 21,654

Borrowings (Tables)

Borrowings (Tables)	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Summary of Borrowed Funds	Borrowed funds are summarized as follows: (Dollars in thousands) September 30, 2023 December 31, 2022 Short-term FHLB advances $ — $ 550,000 Long-term FHLB advances 6,541 6,740 GNMA repurchase liability — 24,569 Overnight repurchase agreements with depositors 5,672 27,921 Correspondent short-term borrowings — 30,000 Total FHLB advances and other borrowings $ 12,213 $ 639,230 Subordinated indebtedness, net $ 196,825 $ 201,765
Summary of Terms of Current Debentures	Debt Security Issue Year Interest Rate Outstanding Amount (Dollars in thousands) Floating rate subordinated promissory notes due June 2025 2015 Prime +175 bps Min: 3.875% Max: 6.375% $ 5,500 Floating rate subordinated promissory notes due December 2023 2016 Prime +125 bps Min: 3.875% Max: 6.375% 3,000 Floating rate subordinated promissory notes due December 2026 2016 Prime +175 bps Min: 3.875% Max: 6.375% 6,750 Floating rate subordinated promissory notes due December 2024 2017 Prime +125 bps Min: 3.875% Max: 6.375% 10,850 Floating rate subordinated promissory notes due December 2027 2017 Prime +175 bps Min: 3.875% Max: 6.375% 5,200 Floating rate subordinated promissory notes due December 2025 2018 Prime +50 bps Min: 3.875% Max: 6.125% 3,200 Floating rate subordinated promissory notes due December 2028 2018 Prime +75 bps Min: 3.875% Max: 6.125% 1,900 Fixed to floating rate subordinated promissory notes due June 2031 2021 Through 6/30/26: 4.00% After 6/30/26: Prime +75 bps Min: 3.875% Max: 6.125% 1,000 Remaining unamortized merger-related fair value adjustment at September 30, 2023 (38) Total assumed subordinated notes 37,362 Legacy subordinated indebtedness 143,129 Total subordinated indebtedness, excluding junior subordinated debt $ 180,491 The following table is a summary of the terms of the current junior subordinated debentures at September 30, 2023: (Dollars in thousands) Issuance Trust Issuance Date Maturity Date Amount Outstanding Rate Type Current Rate Maximum Rate CTB Statutory Trust I 07/2001 07/2031 $ 6,702 Variable (1) 8.37 % 12.50 % First Louisiana Statutory Trust I 09/2006 12/2036 4,124 Variable (2) 7.47 16.00 BT Holdings Trust I 05/2007 09/2037 7,217 Variable (3) 7.30 N/A Par amount 18,043 Unamortized original issue discount (1,026) Unamortized purchase accounting discount (683) Total junior subordinated debt at September 30, 2023 $ 16,334 ____________________________ (1) The trust preferred securities reprice quarterly based on the three-month average SOFR plus 3.30%, with the last reprice date on July 27, 2023. (2) The trust preferred securities reprice quarterly based on the three-month CME Term SOFR plus 1.80%, plus 0.26161% SOFR spread adjustment, with the last reprice date on September 13, 2023.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2023
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 consolidated balance sheets at September 30, 2023, and December 31, 2022, as well as the effect of these derivative instruments on the Company’s consolidated statements of income for the nine months ended September 30, 2023 and 2022. Derivative instruments and their related gains and losses are reported in other operating activities, net in the statements of cash flows. (Dollars in thousands) Notional Amounts (1) Fair Values Derivatives designated as cash flow hedging instruments: September 30, 2023 December 31, 2022 September 30, 2023 December 31, 2022 Interest rate swaps included in other assets $ 10,500 $ 10,500 $ 1,106 $ 1,043 Derivatives not designated as hedging instruments: Interest rate swaps included in other assets $ 366,934 $ 352,842 $ 27,991 $ 25,482 Interest rate swaps included in other liabilities 360,119 345,742 (27,517) (25,175) Risk participation agreements included in other assets 20,000 59,738 1 — Forward commitments to purchase forward-settling mortgage-backed securities included in other liabilities 10,000 7,000 (153) (100) Forward commitments to purchase treasury notes in other liabilities 23,500 31,500 (365) — Forward commitments to sell residential mortgage loans included in other assets 4,500 8,500 53 7 Interest rate-lock commitments on residential mortgage loans included in other assets 14,154 9,544 342 201 $ 799,207 $ 814,866 $ 352 $ 415 ____________________________ (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, 2023, and December 31, 2022, were as follows: Weighted-Average Interest Rate September 30, 2023 December 31, 2022 Interest rate swaps: Paid Received Paid Received Cash flow hedges 4.24 % 8.25 % 4.98 % 5.72 % Non-hedging interest rate swaps - financial institution counterparties 4.77 7.87 3.72 5.75 Non-hedging interest rate swaps - customer counterparties 7.87 4.77 5.75 3.72
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: 2023 2022 2023 2022 Amount of loss recognized in mortgage banking revenue (1) $ (1,102) $ (1,317) $ (1,613) $ (3,537) Amount of gain recognized in other non-interest income 82 210 167 652 ____________________________ (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, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Black-Scholes Option Pricing Model	The table below includes the weighted-average assumptions used to calculate the grant date fair value of the ESPP rights for the periods indicated using the Black-Scholes option pricing model: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Expected term (in years) 1.00 1.00 1.00 1.00 Dividend yield $ 2.08 $ 1.52 $ 1.81 $ 1.38 Risk-free interest rate 4.94 % 2.00 % 3.52 % 0.98 % Expected volatility 31.12 32.56 31.81 39.75
Schedule of ESPP Shares Purchased	The ESPP shares purchased are as follows for the dates indicated: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 ESPP shares purchased — — 46,213 26,089 Shares available for issuance under the ESPP 927,698 973,911 927,698 973,911
Schedule of Share-Based Compensation Cost Charged to Income	Share-based compensation cost charged to income for the three and nine months ended September 30, 2023 and 2022, 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) 2023 2022 2023 2022 RSA & RSU $ 1,180 $ 753 $ 3,236 $ 2,030 PSU 41 134 336 283 ESPP 114 83 314 235 Total stock compensation expense $ 1,335 $ 970 $ 3,886 $ 2,548 Related tax benefits recognized in net income $ 280 $ 204 $ 816 $ 535
Schedule of Time-Vested Award Activity	The following table summarizes the Company’s award activity: Nine Months Ended September 30, 2023 2022 Shares Weighted Average Grant-Date Fair Value Shares Weighted Average Grant-Date Fair Value Nonvested RSAs, January 1, 27,391 $ 35.37 48,048 $ 35.27 Granted RSAs 16,788 28.61 12,840 37.39 Vested RSAs (17,237) 34.33 (22,682) 35.73 Nonvested RSAs, September 30, 26,942 31.82 38,206 35.71 Nonvested RSUs, January 1, 270,390 $ 39.63 73,977 $ 40.64 Granted RSUs 113,674 35.70 87,795 43.09 Vested RSUs (53,263) 41.94 (23,260) 40.40 Forfeited RSUs (10,014) 43.44 (1,841) 43.48 Nonvested RSUs, September 30, 320,787 37.73 136,671 42.21 Nonvested PSUs, January 1, 157,367 $ 29.06 — $ — Granted PSUs 43,591 30.69 27,632 40.85 Forfeited PSUs (3,116) 30.69 — — Nonvested PSUs, September 30, 197,842 27.96 27,632 40.85
Schedule of Stock Option Activity	The table below summarizes the status of the Company’s stock options and changes during the nine months ended September 30, 2023 and 2022. (Dollars in thousands, except per share amounts) Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value Nine Months Ended September 30, 2023 Outstanding at January 1, 2023 504,437 $ 29.46 5.13 $ 3,736 Exercised (55,897) 17.35 — 918 Expired (11,081) 33.63 — — Outstanding and exercisable at September 30, 2023 437,459 30.90 3.88 917 Nine Months Ended September 30, 2022 Outstanding at January 1, 2022 39,200 $ 10.73 2.28 $ 1,262 BTH options converted to OBNK options 611,676 28.62 — — Exercised (60,687) 19.67 — 1,373 Expired (331) 37.01 — — Outstanding and exercisable at September 30, 2022 589,858 28.05 4.96 5,971

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive (Loss) Income (Tables)	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Schedule of Accumulated Other Comprehensive (Loss) Income	Accumulated other comprehensive (loss) income (“AOCI”) includes the after-tax change in unrealized gains and losses on AFS securities and cash flow hedging activities. (Dollars in thousands) Unrealized (Loss) Gain on AFS Securities Unrealized Gain (Loss) on Cash Flow Hedges Accumulated Other Comprehensive (Loss) Income Balance at January 1, 2023 $ (160,700) $ 825 $ (159,875) Net change (12,904) 50 (12,854) Balance at September 30, 2023 $ (173,604) $ 875 $ (172,729) Balance at January 1, 2022 $ 5,809 $ (80) $ 5,729 Net change (181,919) 957 (180,962) Balance at September 30, 2022 $ (176,110) $ 877 $ (175,233)

Capital and Regulatory Matters

Capital and Regulatory Matters (Tables)	9 Months Ended
	Sep. 30, 2023
Banking Regulation [Abstract]
Actual Capital Amounts and Ratios	The actual capital amounts and ratios of the Company and the Bank at September 30, 2023, and December 31, 2022, are presented in the following table: (Dollars in thousands) September 30, 2023 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. $ 988,951 11.46 % $ 604,324 7.00 % N/A N/A Origin Bank 1,034,519 12.02 602,430 7.00 $ 559,399 6.50 % Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 1,004,742 11.64 733,823 8.50 N/A N/A Origin Bank 1,034,519 12.02 731,522 8.50 688,492 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 1,261,080 14.61 906,488 10.50 N/A N/A Origin Bank 1,201,282 13.96 903,647 10.50 860,616 10.00 Leverage Ratio Origin Bancorp, Inc. 1,004,742 10.00 402,029 4.00 N/A N/A Origin Bank 1,034,519 10.33 400,778 4.00 500,973 5.00 December 31, 2022 Common Equity Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 906,859 10.93 580,857 7.00 N/A N/A Origin Bank 952,579 11.50 579,775 7.00 538,363 6.50 Tier 1 Capital to Risk-Weighted Assets Origin Bancorp, Inc. 922,584 11.12 705,327 8.50 N/A N/A Origin Bank 952,579 11.50 704,013 8.50 662,600 8.00 Total Capital to Risk-Weighted Assets Origin Bancorp, Inc. 1,180,665 14.23 871,290 10.50 N/A N/A Origin Bank 1,109,257 13.39 869,661 10.50 828,249 10.00 Leverage Ratio Origin Bancorp, Inc. 922,584 9.66 381,955 4.00 N/A N/A Origin Bank 952,579 9.94 383,359 4.00 479,198 5.00

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Schedule of Off-Balance Sheet Financial Instruments	The table below presents the Company’s commitments to extend credit by commitment expiration date for the dates indicated: (Dollars in thousands) September 30, 2023 Less than One-Three Three-Five Greater than Total Commitments to extend credit (1) $ 921,782 $ 961,365 $ 447,769 $ 101,953 $ 2,432,869 Standby letters of credit 102,449 6,958 32,957 — 142,364 Total off-balance sheet commitments $ 1,024,231 $ 968,323 $ 480,726 $ 101,953 $ 2,575,233 December 31, 2022 Commitments to extend credit (1) $ 1,093,744 $ 988,212 $ 553,069 $ 96,783 $ 2,731,808 Standby letters of credit 86,922 2,264 — — 89,186 Total off-balance sheet commitments $ 1,180,666 $ 990,476 $ 553,069 $ 96,783 $ 2,820,994 ____________________________ (1) Includes $723.3 million and $594.6 million of unconditionally cancellable commitments at September 30, 2023, and December 31, 2022, respectively.

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2023
Business Combination and Asset Acquisition [Abstract]
Schedule of Fair Values of Assets Acquired and Liabilities Assumed	The following schedule is a breakdown of the assets acquired and liabilities assumed as of the merger date: BT Holdings, Inc. (Dollars in thousands) As Recorded by Origin Assets Acquired: Cash and cash equivalents $ 69,953 Investment securities 456,808 Loans acquired 1,239,532 Allowance for credit losses on loans (5,527) Loans receivable, net 1,234,005 Premises and equipment 17,825 Non-marketable equity securities held in other financial institutions 5,873 Core deposit intangible 38,356 Other assets 23,778 Total assets acquired $ 1,846,598 Liabilities Assumed: Noninterest-bearing deposits $ 398,089 Interest-bearing deposits 865,864 Time deposits 302,506 Total deposits 1,566,459 Securities sold under agreements to repurchase 10,133 Subordinated indebtedness, net 44,074 Accrued expenses and other liabilities 12,674 Total liabilities assumed 1,633,340 Net assets acquired 213,258 Purchase price 307,784 Goodwill $ 94,526
Financing Receivable, Purchased With Credit Deterioration	The following table provides a summary of loans purchased with credit deterioration at the merger transaction date with BTH: August 1, 2022 (Dollars in thousands) Commercial Real Estate Construction/ Land/ Land Development Residential Real Estate Commercial and Industrial Mortgage Warehouse Lines of Credit Consumer Total Unpaid principal balance $ 10,731 $ 1,315 $ 2,880 $ 37,117 $ — $ 169 $ 52,212 PCD allowance for credit loss at merger 1 — — 5,525 — 1 5,527 Non-credit related (premium)/discount (277) (92) 3 (77) — 1 (442) Fair value of PCD loans $ 11,007 $ 1,407 $ 2,877 $ 31,669 $ — $ 167 $ 47,127
Unaudited Pro-Forma Information Merger with BTH	The following table presents unaudited pro-forma information as if the merger with BTH had occurred on January 1, 2022. This pro-forma information gives effect to certain adjustments, including purchase accounting fair value adjustments, amortization of core deposit intangible and related income tax effects and is based on our historical results for the periods presented. Transaction-related costs related to the merger are not reflected in the pro-forma amounts. The pro-forma information does not necessarily reflect the results of operations that would have occurred had the Company acquired BTH at the beginning of fiscal year 2021. Cost savings are also not reflected in the unaudited pro-forma amounts. (Dollars in thousands except share and per share data) Pro-Forma for the Nine Months Ended September 30, 2022 Net interest income $ 243,932 Noninterest income 49,425 Net income 76,286 Pro-forma earnings per share: Basic $ 2.50 Diluted 2.48 Weighted average shares outstanding 32,092,071

Significant Accounting Polici_3

Significant Accounting Policies (Details)	9 Months Ended
	Sep. 30, 2023 segment banking_center
Accounting Policies [Abstract]
Number of banking centers | banking_center	60
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, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net income	$ 24,313	$ 21,760	$ 24,302	$ 16,243	$ 21,311	$ 20,683	$ 70,375	$ 58,237
Denominator:
Weighted average common shares outstanding (in shares)	30,856,649			28,298,984			30,797,399	25,263,681
Dilutive effect of stock-based awards (in shares)	87,211			182,635			105,823	103,126
Weighted average diluted common shares outstanding (in shares)	30,943,860			28,481,619			30,903,222	25,366,807
Basic earnings per common share (in dollars per share)	$ 0.79			$ 0.57			$ 2.29	$ 2.31
Diluted earnings per common share (in dollars per share)	$ 0.79			$ 0.57			$ 2.28	$ 2.30

Earnings Per Share - Narrative

Earnings Per Share - Narrative (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	613,010	12,486	459,434	13,412

Securities - Amortized Cost and

Securities - Amortized Cost and Estimated Fair Value of Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Available for sale:
Available for sale, amortized cost	$ 1,510,656	$ 1,844,975
Available for sale, gross unrealized gains	152	1,000
Available for sale, gross unrealized losses	(219,969)	(204,491)
Available for sale, fair value	1,290,839	1,641,484
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	1,290,839	1,641,484
Held to maturity:
Held to maturity, amortized cost	11,680
Held to maturity, fair value	11,005	11,970
Held to maturity, allowance for credit losses	(890)	(899)	$ (892)	$ (167)
Held to maturity, net carrying amount	10,790	11,275
Securities carried at fair value through income:
Securities carried at fair value through income, fair value	6,772	6,368
State and municipal securities
Available for sale:
Available for sale, amortized cost	382,677	447,086
Available for sale, gross unrealized gains	148	996
Available for sale, gross unrealized losses	(66,474)	(58,605)
Available for sale, fair value	316,351	389,477
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	316,351	389,477
Held to maturity:
Held to maturity, amortized cost	11,680	12,174
Held to maturity, gross unrealized gains	0	278
Held to maturity, gross unrealized losses	(675)	(482)
Held to maturity, fair value	11,005	11,970
Held to maturity, allowance for credit losses	(890)	(899)
Held to maturity, net carrying amount	10,790	11,275
Securities carried at fair value through income:
Securities carried at fair value through income, amortized cost	6,815	7,100
Securities carried at fair value through income, fair value	6,772	6,368
Securities carried at fair value through income, net carrying amount	6,772	6,368
Corporate bonds
Available for sale:
Available for sale, amortized cost	84,221	89,449
Available for sale, gross unrealized gains	0	0
Available for sale, gross unrealized losses	(9,931)	(7,191)
Available for sale, fair value	74,290	82,258
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	74,290	82,258
U.S. government and agency securities
Available for sale:
Available for sale, amortized cost	111,812	264,755
Available for sale, gross unrealized gains	3	4
Available for sale, gross unrealized losses	(9,024)	(16,339)
Available for sale, fair value	102,791	248,420
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	102,791	248,420
Commercial mortgage-backed securities
Available for sale:
Available for sale, amortized cost	104,745	105,536
Available for sale, gross unrealized gains	0	0
Available for sale, gross unrealized losses	(14,725)	(13,593)
Available for sale, fair value	90,020	91,943
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	90,020	91,943
Residential mortgage-backed securities
Available for sale:
Available for sale, amortized cost	588,373	649,765
Available for sale, gross unrealized gains	0	0
Available for sale, gross unrealized losses	(87,625)	(77,462)
Available for sale, fair value	500,748	572,303
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	500,748	572,303
Commercial collateralized mortgage obligations
Available for sale:
Available for sale, amortized cost	39,672	44,330
Available for sale, gross unrealized gains	0	0
Available for sale, gross unrealized losses	(5,723)	(5,517)
Available for sale, fair value	33,949	38,813
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	33,949	38,813
Residential collateralized mortgage obligations
Available for sale:
Available for sale, amortized cost	154,301	170,136
Available for sale, gross unrealized gains	0	0
Available for sale, gross unrealized losses	(25,868)	(23,766)
Available for sale, fair value	128,433	146,370
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	128,433	146,370
Asset-backed securities
Available for sale:
Available for sale, amortized cost	44,855	73,918
Available for sale, gross unrealized gains	1	0
Available for sale, gross unrealized losses	(599)	(2,018)
Available for sale, fair value	44,257	71,900
Available for sale, allowance for credit losses	0	0
Available-for-sale, net carrying amount	$ 44,257	$ 71,900

Securities - Unrealized Losses

Securities - Unrealized Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value
Less than 12 Months	$ 19,240	$ 794,894
12 Months or More	1,241,455	801,830
Total	1,260,695	1,596,724
Unrealized Loss
Less than 12 Months	(911)	(59,754)
12 Months or More	(219,058)	(144,737)
Total	(219,969)	(204,491)
State and municipal securities
Fair Value
Less than 12 Months	8,335	171,079
12 Months or More	281,606	175,011
Total	289,941	346,090
Unrealized Loss
Less than 12 Months	(493)	(14,947)
12 Months or More	(65,981)	(43,658)
Total	(66,474)	(58,605)
Fair Value
Less than 12 Months	5,105	6,518
12 Months or More	5,900	0
Total	11,005	6,518
Unrealized Loss
Less than 12 Months	(62)	(482)
12 Months or More	(613)	0
Total	(675)	(482)
Corporate bonds
Fair Value
Less than 12 Months	5,624	69,618
12 Months or More	67,667	11,640
Total	73,291	81,258
Unrealized Loss
Less than 12 Months	(376)	(5,581)
12 Months or More	(9,555)	(1,610)
Total	(9,931)	(7,191)
U.S. government and agency securities
Fair Value
Less than 12 Months	0	152,471
12 Months or More	102,465	95,576
Total	102,465	248,047
Unrealized Loss
Less than 12 Months	0	(7,373)
12 Months or More	(9,024)	(8,966)
Total	(9,024)	(16,339)
Commercial mortgage-backed securities
Fair Value
Less than 12 Months	0	37,083
12 Months or More	90,020	54,860
Total	90,020	91,943
Unrealized Loss
Less than 12 Months	0	(3,416)
12 Months or More	(14,725)	(10,177)
Total	(14,725)	(13,593)
Residential mortgage-backed securities
Fair Value
Less than 12 Months	59	231,848
12 Months or More	500,689	340,455
Total	500,748	572,303
Unrealized Loss
Less than 12 Months	(8)	(20,465)
12 Months or More	(87,617)	(56,997)
Total	(87,625)	(77,462)
Commercial collateralized mortgage obligations
Fair Value
Less than 12 Months	0	21,999
12 Months or More	33,949	16,814
Total	33,949	38,813
Unrealized Loss
Less than 12 Months	0	(2,516)
12 Months or More	(5,723)	(3,001)
Total	(5,723)	(5,517)
Residential collateralized mortgage obligations
Fair Value
Less than 12 Months	0	48,749
12 Months or More	128,433	97,621
Total	128,433	146,370
Unrealized Loss
Less than 12 Months	0	(3,928)
12 Months or More	(25,868)	(19,838)
Total	(25,868)	(23,766)
Asset-backed securities
Fair Value
Less than 12 Months	5,222	62,047
12 Months or More	36,626	9,853
Total	41,848	71,900
Unrealized Loss
Less than 12 Months	(34)	(1,528)
12 Months or More	(565)	(490)
Total	$ (599)	$ (2,018)

Securities - Narrative (Details

Securities - Narrative (Details)	Sep. 30, 2023 USD ($) security	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Number of securities in an unrealized loss position | security	647
Held-to-maturity securities, accrued interest	$ 6,400,000		$ 8,200,000
Held to maturity, amortized cost	11,680,000
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, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Allowance for credit losses:
Beginning Balance			$ 899,000	$ 167,000
Credit loss expense	$ (45,000)	$ 0	(9,000)	725,000
Ending Balance	$ 890,000	$ 892,000	$ 890,000	$ 892,000

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, 2023	Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales/calls	$ 214,302	$ 484,421
Gross realized gains	596	3,766
Gross realized losses	$ (7,625)	$ (2,102)

Securities - Contractual Maturi

Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Amortized Cost
Due in one year or less	$ 0
Due after one year through five years	0
Due after five years through ten years	5,167
Due after ten years	6,513
Held to maturity, amortized cost	11,680
Fair Value
Due in one year or less	0
Due after one year through five years	0
Due after five years through ten years	5,105
Due after ten years	5,900
Held to maturity, fair value	11,005	$ 11,970
Amortized Cost
Due in one year or less	64,008
Due after one year through five years	96,426
Due after five years through ten years	197,466
Due after ten years	220,810
Available for sale, amortized cost	1,510,656	1,844,975
Fair Value
Due in one year or less	63,004
Due after one year through five years	87,840
Due after five years through ten years	169,927
Due after ten years	172,661
Available for sale, fair value	1,290,839	1,641,484
Commercial mortgage-backed securities
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	104,745
Available for sale, amortized cost	104,745	105,536
Fair Value
Without single maturity date	90,020
Available for sale, fair value	90,020	91,943
Residential mortgage-backed securities
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	588,373
Available for sale, amortized cost	588,373	649,765
Fair Value
Without single maturity date	500,748
Available for sale, fair value	500,748	572,303
Commercial collateralized mortgage obligations
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	39,672
Available for sale, amortized cost	39,672	44,330
Fair Value
Without single maturity date	33,949
Available for sale, fair value	33,949	38,813
Residential collateralized mortgage obligations
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	154,301
Available for sale, amortized cost	154,301	170,136
Fair Value
Without single maturity date	128,433
Available for sale, fair value	128,433	146,370
Asset-backed securities
Amortized Cost
Without single maturity date	0
Fair Value
Without single maturity date	0
Amortized Cost
Without single maturity date	44,855
Available for sale, amortized cost	44,855	73,918
Fair Value
Without single maturity date	44,257
Available for sale, fair value	$ 44,257	$ 71,900

Securities - Securities Pledged

Securities - Securities Pledged as Collateral (Details) - Asset Pledged as Collateral - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Carrying value of securities pledged to secure public deposits
Schedule of Held-to-maturity Securities [Line Items]
Debt securities	$ 412,829	$ 769,691
Carrying value of securities pledged to repurchase agreements
Schedule of Held-to-maturity Securities [Line Items]
Debt securities	$ 5,530	$ 6,797

Loans - Schedule of Loans (Deta

Loans - Schedule of Loans (Details) - USD ($) $ in Thousands			9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Aug. 01, 2022	Jun. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale	$ 14,944	$ 49,957	$ 14,944
Total Loans Receivable	7,568,063	7,090,022	7,568,063
Less: Allowance for loan credit losses (“ALCL”)	95,177	87,161	95,177	$ 83,359	$ 94,353		$ 63,123	$ 64,586
LHFI, net	7,472,886	7,002,861	7,472,886			$ 6,770,000
Net deferred loan fees	11,500	14,200	11,500
Net loan discounts	179	2,200	2,067	1,187
Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	5,200,816	4,727,841	5,200,816
Real estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	2,435,891	2,304,678	2,435,891
Less: Allowance for loan credit losses (“ALCL”)	19,109	19,772	19,109	18,031	20,839		16,112	13,425
Real estate | Owner occupied commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	932,109	843,006	932,109
Real estate | Non-owner occupied commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	1,503,782	1,461,672	1,503,782
Real estate | Construction/land/land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	1,076,756	945,625	1,076,756
Less: Allowance for loan credit losses (“ALCL”)	9,345	7,776	9,345	7,066	8,729		4,707	4,011
Real estate | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	1,688,169	1,477,538	1,688,169
Less: Allowance for loan credit losses (“ALCL”)	10,069	8,230	10,069	7,755	9,018		5,851	6,116
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	2,058,073	2,051,161	2,058,073
Less: Allowance for loan credit losses (“ALCL”)	55,453	50,148	55,453	49,058	54,173		35,477	40,146
Mortgage warehouse lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	286,293	284,867	286,293
Less: Allowance for loan credit losses (“ALCL”)	458	379	458	556	817		459	340
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	22,881	26,153	22,881
Less: Allowance for loan credit losses (“ALCL”)	$ 743	$ 856	$ 743	$ 893	$ 777		$ 517	$ 548

Loans - Narrative (Details)

Loans - Narrative (Details) - USD ($)			3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCD loans	$ 36,800,000	$ 48,100,000
Accrued interest	33,000,000		$ 33,000,000		$ 21,900,000	$ 33,000,000	$ 21,900,000
Collectively evaluated portion of increase (decrease) related to reserve	7,300,000		7,300,000			7,300,000
Individually evaluated portion of increase (decrease) related to reserve	4,500,000		4,500,000			4,500,000
Funding commitments	682,000	0	682,000			682,000		$ 0
Gross interest income that would have been recorded			3,202,000		1,628,000	8,246,000	6,222,000
Transfer from held for sale portfolio to held for investment portfolio				$ 7,100,000
Nonaccrual mortgage loans held for sale recorded at fair value	$ 0	$ 3,900,000	0			0		3,900,000
Nonperforming Financial Instruments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross interest income that would have been recorded						884,000	799,000
Interest income						0	0
Real estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross interest income that would have been recorded			0		0	42,000	166,000	166,000
Commercial Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross interest income that would have been recorded			$ 3,187,000		$ 1,618,000	$ 8,070,000	$ 5,943,000	$ 8,459,000

Loans - Loans by Credit Quality

Loans - Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Charge-offs	$ 3,202	$ 1,628	$ 8,246	$ 6,222
Real estate | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	270,599		270,599		$ 886,174
Year two	889,930		889,930		504,082
Year three	488,437		488,437		284,919
Year four	259,278		259,278		234,054
Year five	223,935		223,935		179,218
Prior	227,383		227,383		144,671
Revolving Loans Amortized Cost Basis	76,329		76,329		71,560
Total	2,435,891		2,435,891		2,304,678
Year one			0		0
Year two			0		0
Year three			0		0
Year four			0		0
Year five			0		0
More than 5 years			42		166
Revolving Loans Amortized Cost Basis			0		0
Charge-offs	0	0	42	166	166
Real estate | Commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	269,854		269,854		885,244
Year two	888,014		888,014		502,287
Year three	485,198		485,198		283,368
Year four	257,683		257,683		230,040
Year five	223,348		223,348		168,079
Prior	209,716		209,716		131,411
Revolving Loans Amortized Cost Basis	76,329		76,329		69,952
Total	2,410,142		2,410,142		2,270,381
Real estate | Commercial real estate | Special mention
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		8,174
Prior	7,996		7,996		1,359
Revolving Loans Amortized Cost Basis	0		0		1,558
Total	7,996		7,996		11,091
Real estate | Commercial real estate | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	745		745		930
Year two	1,916		1,916		1,795
Year three	3,239		3,239		1,551
Year four	1,595		1,595		4,014
Year five	587		587		2,965
Prior	9,671		9,671		11,901
Revolving Loans Amortized Cost Basis	0		0		50
Total	17,753		17,753		23,206
Real estate | Construction/land/land development
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	203,869		203,869		452,340
Year two	502,995		502,995		321,051
Year three	256,346		256,346		59,166
Year four	31,083		31,083		27,419
Year five	17,948		17,948		27,913
Prior	26,375		26,375		6,961
Revolving Loans Amortized Cost Basis	38,140		38,140		50,775
Total	1,076,756		1,076,756		945,625
Year one			0		0
Year two			0		0
Year three			0		0
Year four			0		0
Year five			0		0
More than 5 years			0		0
Revolving Loans Amortized Cost Basis			0		0
Charge-offs	0	0	0	0	0
Real estate | Construction/land/land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	203,868		203,868		445,943
Year two	492,097		492,097		320,951
Year three	235,360		235,360		58,880
Year four	30,838		30,838		27,381
Year five	17,281		17,281		27,753
Prior	25,621		25,621		5,253
Revolving Loans Amortized Cost Basis	35,821		35,821		48,436
Total	1,040,886		1,040,886		934,597
Real estate | Construction/land/land development | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		6,217
Year two	10,718		10,718		0
Year three	20,932		20,932		0
Year four	0		0		0
Year five	0		0		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	0		0		0
Total	31,650		31,650		6,217
Real estate | Construction/land/land development | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	1		1		180
Year two	180		180		100
Year three	54		54		286
Year four	245		245		38
Year five	667		667		160
Prior	754		754		1,708
Revolving Loans Amortized Cost Basis	2,319		2,319		2,339
Total	4,220		4,220		4,811
Real estate | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	280,495		280,495		537,966
Year two	519,743		519,743		310,834
Year three	306,829		306,829		261,773
Year four	242,744		242,744		109,024
Year five	101,156		101,156		49,716
Prior	153,910		153,910		127,705
Revolving Loans Amortized Cost Basis	83,292		83,292		80,520
Total	1,688,169		1,688,169		1,477,538
Year one			0		0
Year two			0		0
Year three			0		0
Year four			5		0
Year five			0		0
More than 5 years			22		91
Revolving Loans Amortized Cost Basis			0		0
Charge-offs	0	0	27	75	91
Real estate | Residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	279,903		279,903		535,739
Year two	517,755		517,755		308,070
Year three	305,358		305,358		261,293
Year four	242,179		242,179		107,530
Year five	99,778		99,778		48,652
Prior	149,748		149,748		123,052
Revolving Loans Amortized Cost Basis	83,182		83,182		80,375
Total	1,677,903		1,677,903		1,464,711
Real estate | Residential real estate | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	250		250		0
Year two	0		0		0
Year three	0		0		390
Year four	145		145		0
Year five	0		0		0
Prior	309		309		0
Revolving Loans Amortized Cost Basis	0		0		0
Total	704		704		390
Real estate | Residential real estate | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	342		342		2,227
Year two	1,988		1,988		2,764
Year three	1,471		1,471		90
Year four	420		420		1,494
Year five	1,378		1,378		1,064
Prior	3,853		3,853		4,653
Revolving Loans Amortized Cost Basis	110		110		145
Total	9,562		9,562		12,437
Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	255,949		255,949		467,137
Year two	340,239		340,239		253,429
Year three	191,848		191,848		82,356
Year four	41,156		41,156		77,021
Year five	62,660		62,660		41,945
Prior	53,809		53,809		29,748
Revolving Loans Amortized Cost Basis	1,112,412		1,112,412		1,099,525
Total	2,058,073		2,058,073		2,051,161
Year one			111		28
Year two			263		726
Year three			40		48
Year four			141		869
Year five			0		337
More than 5 years			411		1,103
Revolving Loans Amortized Cost Basis			7,104		5,348
Charge-offs	3,187	1,618	8,070	5,943	8,459
Commercial and Industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	252,933		252,933		454,813
Year two	328,833		328,833		239,411
Year three	183,124		183,124		82,168
Year four	40,747		40,747		75,043
Year five	61,655		61,655		40,534
Prior	53,379		53,379		29,745
Revolving Loans Amortized Cost Basis	1,091,475		1,091,475		1,083,221
Total	2,012,146		2,012,146		2,004,935
Commercial and Industrial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	524		524		8,683
Year two	9,918		9,918		2,563
Year three	0		0		0
Year four	96		96		0
Year five	0		0		187
Prior	0		0		0
Revolving Loans Amortized Cost Basis	3,026		3,026		1,620
Total	13,564		13,564		13,053
Commercial and Industrial | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	2,492		2,492		3,641
Year two	1,488		1,488		11,455
Year three	8,724		8,724		188
Year four	313		313		1,978
Year five	1,005		1,005		1,224
Prior	430		430		3
Revolving Loans Amortized Cost Basis	17,911		17,911		14,684
Total	32,363		32,363		33,173
Mortgage warehouse lines of credit
Financing Receivable, Credit Quality Indicator [Line Items]
Year one					0
Year two					0
Year three					0
Year four					0
Year five					0
Prior					0
Revolving Loans Amortized Cost Basis					284,867
Total					284,867
Year one			0		0
Year two			0		0
Year three			0		0
Year four			0		0
Year five			0		0
More than 5 years			0		0
Revolving Loans Amortized Cost Basis			0		0
Charge-offs	0	0	0	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	286,293		286,293		282,298
Total	286,293		286,293		282,298
Mortgage warehouse lines of credit | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one					0
Year two					0
Year three					0
Year four					0
Year five					0
Prior					0
Revolving Loans Amortized Cost Basis					2,042
Total					2,042
Mortgage warehouse lines of credit | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one					0
Year two					0
Year three					0
Year four					0
Year five					0
Prior					0
Revolving Loans Amortized Cost Basis					527
Total					527
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	8,443		8,443		9,752
Year two	4,545		4,545		3,841
Year three	1,686		1,686		1,210
Year four	510		510		790
Year five	525		525		135
Prior	58		58		15
Revolving Loans Amortized Cost Basis	7,114		7,114		10,410
Total	22,881		22,881		26,153
Year one			0		3
Year two			90		27
Year three			7		7
Year four			0		2
Year five			0		1
More than 5 years			0		1
Revolving Loans Amortized Cost Basis			10		2
Charge-offs	15	$ 10	107	$ 38	43
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	8,423		8,423		9,730
Year two	4,473		4,473		3,822
Year three	1,659		1,659		1,210
Year four	510		510		784
Year five	522		522		135
Prior	58		58		15
Revolving Loans Amortized Cost Basis	7,113		7,113		10,408
Total	22,758		22,758		26,104
Consumer | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	20		20		22
Year two	72		72		19
Year three	27		27		0
Year four	0		0		6
Year five	3		3		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	1		1		2
Total	$ 123		$ 123		$ 49

Loans - Loan Portfolio Aging An

Loans - Loan Portfolio Aging Analysis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	$ 7,568,063	$ 7,090,022
Accruing Loans 90 or More Days Past Due	0	0
Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	20,347	10,932
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	2,352	6,927
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	9,855	2,879
Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	8,140	1,126
Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	7,547,716	7,079,090
Real estate
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	5,200,816	4,727,841
Accruing Loans 90 or More Days Past Due	0	0
Real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	9,061	4,161
Real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,346	2,699
Real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	3,099	891
Real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	4,616	571
Real estate | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	5,191,755	4,723,680
Real estate | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	2,435,891	2,304,678
Accruing Loans 90 or More Days Past Due	0	0
Real estate | Commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	136	135
Real estate | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	0	31
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	136	104
Real estate | Commercial real estate | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	2,435,755	2,304,543
Real estate | Construction/land/land development
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,076,756	945,625
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	1,163	871
Real estate | Construction/land/land development | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,085	854
Real estate | Construction/land/land development | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	23	0
Real estate | Construction/land/land development | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	55	17
Real estate | Construction/land/land development | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,075,593	944,754
Real estate | Residential real estate
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,688,169	1,477,538
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	7,762	3,155
Real estate | Residential real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	261	1,814
Real estate | Residential real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	3,076	891
Real estate | Residential real estate | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	4,425	450
Real estate | Residential real estate | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	1,680,407	1,474,383
Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	2,058,073	2,051,161
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	11,173	6,394
Commercial and Industrial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	918	3,878
Commercial and Industrial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	6,746	1,972
Commercial and Industrial | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	3,509	544
Commercial and Industrial | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	2,046,900	2,044,767
Mortgage warehouse lines of credit
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	286,293	284,867
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
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	286,293	284,867
Consumer
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	22,881	26,153
Accruing Loans 90 or More Days Past Due	0	0
Consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	113	377
Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	88	350
Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	10	16
Consumer | Loans Past Due 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	15	11
Consumer | Current
Financing Receivable, Past Due [Line Items]
Total Loans Receivable	$ 22,768	$ 25,776

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, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 94,353,000	$ 63,123,000	$ 87,161,000	$ 64,586,000	$ 64,586,000
Allowance for loan credit losses - BTH merger		5,527,000		5,527,000
Charge-offs	3,202,000	1,628,000	8,246,000	6,222,000
Recoveries	516,000	550,000	2,330,000	1,837,000
Provision	3,510,000	15,787,000	13,932,000	17,631,000
Ending balance	95,177,000	83,359,000	95,177,000	83,359,000	87,161,000
Average balance	$ 7,561,094,000	$ 6,389,472,000	$ 7,395,440,000	$ 5,567,702,000
Net charge-offs to loan average balance (annualized)	0.14%	0.07%	0.11%	0.11%
PCD loans acquired		$ 10,800,000		$ 10,800,000
Provision (benefit) for credit losses	$ 3,500,000	16,900,000	$ 14,000,000	20,100,000
Provision (release) for off-balance sheet commitments	50,000	1,200,000	95,000	1,700,000
Credit loss expense (benefit) for held to maturity securities	(45,000)	0	(9,000)	725,000
Real estate | Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	20,839,000	16,112,000	19,772,000	13,425,000	13,425,000
Allowance for loan credit losses - BTH merger		1,000		1,000
Charge-offs	0	0	42,000	166,000	166,000
Recoveries	28,000	17,000	113,000	19,000
Provision	(1,758,000)	1,901,000	(734,000)	4,752,000
Ending balance	19,109,000	18,031,000	19,109,000	18,031,000	19,772,000
Average balance	$ 2,428,969,000	$ 2,046,411,000	$ 2,393,028,000	$ 1,865,658,000
Net charge-offs to loan average balance (annualized)	0%	0%	0%	0.01%
Real estate | Construction/land/land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 8,729,000	$ 4,707,000	$ 7,776,000	$ 4,011,000	4,011,000
Allowance for loan credit losses - BTH merger		0		0
Charge-offs	0	0	0	0	0
Recoveries	3,000	200,000	3,000	200,000
Provision	613,000	2,159,000	1,566,000	2,855,000
Ending balance	9,345,000	7,066,000	9,345,000	7,066,000	7,776,000
Average balance	$ 1,044,180,000	$ 760,682,000	$ 997,296,000	$ 638,683,000
Net charge-offs to loan average balance (annualized)	0%	(0.10%)	0%	(0.04%)
Real estate | Residential real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 9,018,000	$ 5,851,000	$ 8,230,000	$ 6,116,000	6,116,000
Allowance for loan credit losses - BTH merger		0		0
Charge-offs	0	0	27,000	75,000	91,000
Recoveries	3,000	6,000	13,000	98,000
Provision	1,048,000	1,898,000	1,853,000	1,616,000
Ending balance	10,069,000	7,755,000	10,069,000	7,755,000	8,230,000
Average balance	$ 1,663,291,000	$ 1,249,746,000	$ 1,599,803,000	$ 1,042,397,000
Net charge-offs to loan average balance (annualized)	0%	0%	0%	0%
Commercial and Industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 54,173,000	$ 35,477,000	$ 50,148,000	$ 40,146,000	40,146,000
Allowance for loan credit losses - BTH merger		5,525,000		5,525,000
Charge-offs	3,187,000	1,618,000	8,070,000	5,943,000	8,459,000
Recoveries	477,000	325,000	2,189,000	1,505,000
Provision	3,990,000	9,349,000	11,186,000	7,825,000
Ending balance	55,453,000	49,058,000	55,453,000	49,058,000	50,148,000
Average balance	$ 2,024,675,000	$ 1,816,912,000	$ 2,051,272,000	$ 1,548,419,000
Net charge-offs to loan average balance (annualized)	0.53%	0.28%	0.38%	0.38%
Mortgage warehouse lines of credit
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 817,000	$ 459,000	$ 379,000	$ 340,000	340,000
Allowance for loan credit losses - BTH merger		0		0
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Provision	(359,000)	97,000	79,000	216,000
Ending balance	458,000	556,000	458,000	556,000	379,000
Average balance	$ 376,275,000	$ 491,584,000	$ 329,205,000	$ 453,658,000
Net charge-offs to loan average balance (annualized)	0%	0%	0%	0%
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 777,000	$ 517,000	$ 856,000	$ 548,000	548,000
Allowance for loan credit losses - BTH merger		1,000		1,000
Charge-offs	15,000	10,000	107,000	38,000	43,000
Recoveries	5,000	2,000	12,000	15,000
Provision	(24,000)	383,000	(18,000)	367,000
Ending balance	743,000	893,000	743,000	893,000	$ 856,000
Average balance	$ 23,704,000	$ 24,137,000	$ 24,836,000	$ 18,887,000
Net charge-offs to loan average balance (annualized)	0.17%	0.13%	0.51%	0.16%

Loans - Amortized Cost Basis of

Loans - Amortized Cost Basis of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 5,232	$ 8,217
ALCL Allocation	0	738
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	681	1,116
ALCL Allocation	0	738
Mortgage warehouse lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	0
ALCL Allocation	0	0
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	0
ALCL Allocation	0	0
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	4,551	7,101
Real Estate | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	0
Real Estate | Mortgage warehouse lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	0
Real Estate | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	0
Accounts Receivable
Financing Receivable, Allowance for Credit Loss [Line Items]
Total		831
Accounts Receivable | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total		831
Accounts Receivable | Mortgage warehouse lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Total		0
Accounts Receivable | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total		0
Equipment
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	152	285
Equipment | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	152	285
Equipment | Mortgage warehouse lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	0
Equipment | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	0
Other
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	529
Other | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	529
Other | Mortgage warehouse lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0
Other | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0
Commercial Real Estate | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	752	273
ALCL Allocation	0	0
Commercial Real Estate | Real Estate | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	752	273
Commercial Real Estate | Accounts Receivable | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total		0
Commercial Real Estate | Equipment | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	0
Commercial Real Estate | Other | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0
Construction/land/land development | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	97
ALCL Allocation	0	0
Construction/land/land development | Real Estate | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	97
Construction/land/land development | Accounts Receivable | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total		0
Construction/land/land development | Equipment | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	0
Construction/land/land development | Other | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0
Residential Real Estate | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	3,799	6,731
ALCL Allocation	0	0
Residential Real Estate | Real Estate | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	3,799	6,731
Residential Real Estate | Accounts Receivable | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total		0
Residential Real Estate | Equipment | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0	$ 0
Residential Real Estate | Other | Real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 0

Loans - Non Performing (Nonaccr

Loans - Non Performing (Nonaccrual) Loans Held For Investment (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	$ 10,855	$ 8,044
Total Nonaccrual	31,608	9,940
Real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	6,263	7,517
Total Nonaccrual	14,413	8,508
Real estate | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	900	435
Total Nonaccrual	942	526
Real estate | Construction/land/land development
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	0	59
Total Nonaccrual	235	270
Real estate | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	5,363	7,023
Total Nonaccrual	13,236	7,712
Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	4,592	527
Total Nonaccrual	17,072	1,383
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Nonaccrual With No Allowance for Credit Loss	0	0
Total Nonaccrual	$ 123	$ 49

Loans - Troubled Debt Restructu

Loans - Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 25,994	$ 29,700
% of Loans	0.34%	0.39%
Term Extension | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 12,059	$ 14,138
% of Loans	0.23%	0.27%
Term Extension | Commercial and Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 13,935	$ 15,562
% of Loans	0.68%	0.76%
Weighted average term extension (in months)	6 months 21 days	9 months
Term Extension | Commercial real estate | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 7,507	$ 7,853
% of Loans	0.31%	0.32%
Weighted average term extension (in months)	10 months 3 days	12 months 3 days
Term Extension | Construction/land/land development | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 3,807	$ 3,808
% of Loans	0.35%	0.35%
Weighted average term extension (in months)	8 months 18 days	13 months 3 days
Term Extension | Residential real estate | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 745	$ 2,477
% of Loans	0.04%	0.15%
Weighted average term extension (in months)	18 months 12 days	9 months 9 days
Term Extension And Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 923	$ 1,091
% of Loans	0.01%	0.01%
Term Extension And Interest Rate Reduction | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 0	$ 0
% of Loans	0%	0%
Term Extension And Interest Rate Reduction | Commercial and Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 923	$ 1,091
% of Loans	0.04%	0.05%
Term Extension And Interest Rate Reduction | Commercial real estate | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 0	$ 0
% of Loans	0%	0%
Term Extension And Interest Rate Reduction | Construction/land/land development | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 0	$ 0
% of Loans	0%	0%
Term Extension And Interest Rate Reduction | Residential real estate | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 0	$ 0
% of Loans	0%	0%
Other-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 480	$ 480
% of Loans	0.01%	0.01%
Other-Than-Insignificant Payment Delay | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 427	$ 427
% of Loans	0.01%	0.01%
Other-Than-Insignificant Payment Delay | Commercial and Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 53	$ 53
% of Loans	0%	0%
Weighted average term extension (in months)	6 months	6 months
Other-Than-Insignificant Payment Delay | Commercial real estate | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 427	$ 427
% of Loans	0.02%	0.02%
Weighted average term extension (in months)	6 months	6 months
Other-Than-Insignificant Payment Delay | Construction/land/land development | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 0	$ 0
% of Loans	0%	0%
Other-Than-Insignificant Payment Delay | Residential real estate | Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 0	$ 0
% of Loans	0%	0%
Interest Rate Reduction | Commercial and Industrial | Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	10.10%	9.90%
Interest Rate Reduction | Commercial and Industrial | Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	9.50%	9%

Loans - Payment Status (Amortiz

Loans - Payment Status (Amortized Cost Basis) (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Current
Financing Receivable, Past Due [Line Items]
Total LHFI	$ 30,988
30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	282
90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	0
Real estate | Current
Financing Receivable, Past Due [Line Items]
Total LHFI	14,283
Real estate | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	282
Real estate | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	0
Real estate | Commercial real estate | Current
Financing Receivable, Past Due [Line Items]
Total LHFI	8,280
Real estate | Commercial real estate | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	0
Real estate | Commercial real estate | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	0
Real estate | Construction/land/land development | Current
Financing Receivable, Past Due [Line Items]
Total LHFI	3,808
Real estate | Construction/land/land development | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	0
Real estate | Construction/land/land development | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	0
Real estate | Residential real estate | Current
Financing Receivable, Past Due [Line Items]
Total LHFI	2,195
Real estate | Residential real estate | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	282
Real estate | Residential real estate | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	0
Commercial and Industrial | Current
Financing Receivable, Past Due [Line Items]
Total LHFI	16,705
Commercial and Industrial | 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	0
Commercial and Industrial | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Total LHFI	$ 0

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, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 1,290,839		$ 1,641,484
Securities carried at fair value through income	6,772		6,368
Loans held for sale	14,944		25,389
Mortgage servicing rights	19,189	$ 19,086	20,824	$ 21,654	$ 22,127	$ 16,220
State and municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	316,351		389,477
Securities carried at fair value through income	6,772		6,368
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	74,290		82,258
Commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	90,020		91,943
Residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	500,748		572,303
Commercial collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	33,949		38,813
Residential collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	128,433		146,370
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	44,257		71,900
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	1,290,839		1,641,484
Securities carried at fair value through income	6,772		6,368
Loans held for sale	14,944		25,389
Mortgage servicing rights	19,189		20,824
Other assets - derivatives	29,493		26,733
Total recurring fair value measurements - assets	1,361,237		1,720,798
Other liabilities - derivatives	(28,035)		(25,275)
Total recurring fair value measurements - liabilities	(28,035)		(25,275)
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	78,963		110,645
Securities carried at fair value through income	0		0
Loans held for sale	0		0
Mortgage servicing rights	0		0
Other assets - derivatives	0		0
Total recurring fair value measurements - assets	78,963		110,645
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	1,159,437		1,475,070
Securities carried at fair value through income	0		0
Loans held for sale	14,944		25,389
Mortgage servicing rights	0		0
Other assets - derivatives	29,493		26,733
Total recurring fair value measurements - assets	1,203,874		1,527,192
Other liabilities - derivatives	(28,035)		(25,275)
Total recurring fair value measurements - liabilities	(28,035)		(25,275)
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	52,439		55,769
Securities carried at fair value through income	6,772		6,368
Loans held for sale	0		0
Mortgage servicing rights	19,189		20,824
Other assets - derivatives	0		0
Total recurring fair value measurements - assets	78,400		82,961
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	316,351		389,477
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	264,912		334,708
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	51,439		54,769
Fair Value, Measurements, Recurring | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	74,290		82,258
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	73,290		81,258
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	1,000		1,000
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	78,963		110,645
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	78,963		110,645
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		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		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	23,828		137,775
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	23,828		137,775
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	90,020		91,943
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	90,020		91,943
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	500,748		572,303
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	500,748		572,303
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	33,949		38,813
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		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	33,949		38,813
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		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	128,433		146,370
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	128,433		146,370
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	44,257		71,900
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	44,257		71,900
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, 2023	Sep. 30, 2022
MSRs
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Balance at beginning of period	$ 20,824	$ 16,220
Loss recognized in AOCI	0	0
Purchases, issuances, sales and settlements:
Originations	656	1,926
Purchases		0
Acquired in BTH merger		1,099
Sales	(1,806)
Settlements	0	0
Balance at end of period	19,189	21,654
MSRs | Mortgage banking revenue
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis
Gain (loss) recognized in earnings	(485)	2,409
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	55,769	41,461
Loss recognized in AOCI	(703)	(5,048)
Purchases, issuances, sales and settlements:
Originations	0	0
Purchases		25,112
Acquired in BTH merger		5,000
Sales	0
Settlements	(2,627)	(3,323)
Balance at end of period	52,439	63,202
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	6,368	7,497
Loss recognized in AOCI	0	0
Purchases, issuances, sales and settlements:
Originations	0	0
Purchases		0
Acquired in BTH merger		0
Sales	0
Settlements	(285)	(275)
Balance at end of period	6,772	6,347
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	$ 689	$ (875)

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, 2023	Dec. 31, 2022
Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Prepayment speeds	7.31%	7.65%
Discount rates	10.25%	950%
Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Prepayment speeds	7.89%	9.20%
Discount rates	12.75%	2,207%
Weighted Average
Fair Value, Option, Quantitative Disclosures [Line Items]
Prepayment speeds	7.64%	8.11%
Discount rates	10.31%	12.55%

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Difference Between Fair Value and Unpaid Principal Balance (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	$ 21,716,000	$ 31,757,000
Principal Balance/Amortized Cost	21,530,000	32,046,000
Difference	186,000	(289,000)
Nonaccrual mortgage loans held for sale recorded at fair value	0	3,900,000
Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	14,944,000	25,389,000
Principal Balance/Amortized Cost	14,715,000	24,946,000
Difference	229,000	443,000
Securities carried at fair value through income
Fair Value, Option, Quantitative Disclosures [Line Items]
Aggregate Fair Value	6,772,000	6,368,000
Principal Balance/Amortized Cost	6,815,000	7,100,000
Difference	$ (43,000)	(732,000)
U.S. government agency securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Loans, 90 days or more past due		$ 3,300,000

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, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Mortgage banking revenue (loans held for sale)
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	$ (22)	$ (309)	$ (214)	$ (741)
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	666	(282)	689	(875)
Noninterest income
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Total fair value option impact on noninterest income	$ 644	$ (591)	$ 475	$ (1,616)

Fair Value of Financial Instr_8

Fair Value of Financial Instruments - Narrative (Details) - USD ($)	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-marketable equity securities held in other financial institutions	$ 63,842,000			$ 63,842,000		$ 67,378,000
Impairment recorded on investments in equity securities that do not have readily determinable fair values	0			0
Change in fair value of equity investments	10,100,000			10,097,000	$ 0
Liability to repurchase past due GNMA loans	0			0		24,600,000
Settlement of sale of GNMA MSR	0	$ 1,800,000	$ 0	1,806,000	$ 0
Loan balance individually evaluated	5,232,000			5,232,000		8,217,000
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loan balance individually evaluated	15,900,000			15,900,000		20,700,000
Foreclosed assets	3,900,000			3,900,000		806,000
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring | 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	$ 0			$ 0		$ 10,000
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%
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%

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, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value	$ 11,005	$ 11,970
Carrying Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	305,278	358,972
Carrying Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non-marketable equity securities held in other financial institutions	63,842	67,378
GNMA repurchase asset	0	24,569
Accrued interest and loan fees receivable	41,231	38,136
Deposits	8,374,488	7,775,702
FHLB advances and other borrowings	12,213	639,230
Subordinated indebtedness	196,825	201,765
Accrued interest payable	14,126	3,917
Carrying Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value	10,790	11,275
LHFI, net	7,472,886	7,002,861
Estimated Fair Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	305,278	358,972
Estimated Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non-marketable equity securities held in other financial institutions	63,842	67,378
GNMA repurchase asset	0	24,569
Accrued interest and loan fees receivable	41,231	38,136
Deposits	8,358,211	7,753,966
FHLB advances and other borrowings	11,679	639,103
Subordinated indebtedness	187,369	181,624
Accrued interest payable	14,126	3,917
Estimated Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value	11,005	11,970
LHFI, net	$ 7,094,772	$ 6,835,770

Mortgage Banking - Mortgage Ban

Mortgage Banking - Mortgage Banking Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Mortgage Banking [Abstract]
Origination	$ 124	$ 207	$ 384	$ 641
Gain on sale of loans held for sale	757	636	2,380	4,477
Originations of MSRs	225	462	656	1,926
Servicing	915	1,446	2,840	4,306
Total gross mortgage revenue	2,021	2,751	6,260	11,350
MSR valuation adjustments, net	(122)	(2,034)	(485)	2,409
Mortgage HFS and pipeline fair value adjustment	(110)	(410)	(27)	(971)
MSR hedge impact	(897)	(1,236)	(1,673)	(7,267)
Mortgage banking revenue	$ 892	(929)	4,075	5,521
Mortgage servicing right impairment		$ 2,000	$ 485	$ (2,409)

Mortgage Banking - Activity in

Mortgage Banking - Activity in Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	$ 19,086	$ 20,824	$ 22,127	$ 20,824	$ 16,220
Addition of servicing rights	225		462	656	1,926
Settlement of sale of GNMA MSR	0	$ (1,800)	0	(1,806)	0
Valuation adjustment, net of amortization	(122)		(2,034)	(485)	2,409
Balance at end of period	19,189		21,654	19,189	21,654
BTH
Servicing Asset at Fair Value, Amount [Roll Forward]
Addition of servicing rights	$ 0		$ 1,099	$ 0	$ 1,099

Mortgage Banking - Narrative (D

Mortgage Banking - Narrative (Details) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Mortgage Banking [Abstract]
Settlement of sale of GNMA MSR	$ 0	$ 1,800,000	$ 0	$ 1,806,000	$ 0
Annual servicing fee income rate				0.25%
Reserve for mortgage loan servicing putback expenses	146,000			$ 146,000		$ 217,000
Liability to repurchase past due GNMA loans	$ 0			$ 0		$ 24,600,000

Borrowings - Summary of Borrowe

Borrowings - Summary of Borrowed Funds (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument, Redemption [Line Items]
Total FHLB advances and other borrowings	$ 12,213	$ 639,230
FHLB advances
Debt Instrument, Redemption [Line Items]
Total FHLB advances and other borrowings	6,541	6,740
GNMA repurchase liability
Debt Instrument, Redemption [Line Items]
Total FHLB advances and other borrowings	0	24,569
Subordinated indebtedness, net
Debt Instrument, Redemption [Line Items]
Subordinated indebtedness, net	196,825	201,765
FHLB advances
Debt Instrument, Redemption [Line Items]
Total FHLB advances and other borrowings	0	550,000
Overnight repurchase agreements with depositors
Debt Instrument, Redemption [Line Items]
Total FHLB advances and other borrowings	5,672	27,921
Correspondent short-term borrowings
Debt Instrument, Redemption [Line Items]
Total FHLB advances and other borrowings	$ 0	$ 30,000

Borrowings - Schedule of Subord

Borrowings - Schedule of Subordinated Debt (Details) - Subordinated Debt Excluding Junior Subordinated Debt $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Debt Instrument [Line Items]
Subordinated indebtedness, net	$ 180,491
BTH
Debt Instrument [Line Items]
Subordinated indebtedness, net	37,362
Remaining unamortized merger-related fair value adjustment at September 30, 2023	(38)
Floating rate subordinated promissory notes due June 2025 | BTH
Debt Instrument [Line Items]
Subordinated indebtedness, net	$ 5,500
Floating rate subordinated promissory notes due June 2025 | BTH | Prime Rate
Debt Instrument [Line Items]
Interest Rate	1.75%
Floating rate subordinated promissory notes due June 2025 | BTH | Prime Rate | Minimum
Debt Instrument [Line Items]
Interest Rate	3.875%
Floating rate subordinated promissory notes due June 2025 | BTH | Prime Rate | Maximum
Debt Instrument [Line Items]
Interest Rate	6.375%
Floating rate subordinated promissory notes due December 2023 | BTH
Debt Instrument [Line Items]
Subordinated indebtedness, net	$ 3,000
Floating rate subordinated promissory notes due December 2023 | BTH | Prime Rate
Debt Instrument [Line Items]
Interest Rate	1.25%
Floating rate subordinated promissory notes due December 2023 | BTH | Prime Rate | Minimum
Debt Instrument [Line Items]
Interest Rate	3.875%
Floating rate subordinated promissory notes due December 2023 | BTH | Prime Rate | Maximum
Debt Instrument [Line Items]
Interest Rate	6.375%
Floating rate subordinated promissory notes due December 2026 | BTH
Debt Instrument [Line Items]
Subordinated indebtedness, net	$ 6,750
Floating rate subordinated promissory notes due December 2026 | BTH | Prime Rate
Debt Instrument [Line Items]
Interest Rate	1.75%
Floating rate subordinated promissory notes due December 2026 | BTH | Prime Rate | Minimum
Debt Instrument [Line Items]
Interest Rate	3.875%
Floating rate subordinated promissory notes due December 2026 | BTH | Prime Rate | Maximum
Debt Instrument [Line Items]
Interest Rate	6.375%
Floating rate subordinated promissory notes due December 2024 | BTH
Debt Instrument [Line Items]
Subordinated indebtedness, net	$ 10,850
Floating rate subordinated promissory notes due December 2024 | BTH | Prime Rate
Debt Instrument [Line Items]
Interest Rate	1.25%
Floating rate subordinated promissory notes due December 2024 | BTH | Prime Rate | Minimum
Debt Instrument [Line Items]
Interest Rate	3.875%
Floating rate subordinated promissory notes due December 2024 | BTH | Prime Rate | Maximum
Debt Instrument [Line Items]
Interest Rate	6.375%
Floating rate subordinated promissory notes due December 2027 | BTH
Debt Instrument [Line Items]
Subordinated indebtedness, net	$ 5,200
Floating rate subordinated promissory notes due December 2027 | BTH | Prime Rate
Debt Instrument [Line Items]
Interest Rate	1.75%
Floating rate subordinated promissory notes due December 2027 | BTH | Prime Rate | Minimum
Debt Instrument [Line Items]
Interest Rate	3.875%
Floating rate subordinated promissory notes due December 2027 | BTH | Prime Rate | Maximum
Debt Instrument [Line Items]
Interest Rate	6.375%
Floating rate subordinated promissory notes due December 2025 | BTH
Debt Instrument [Line Items]
Subordinated indebtedness, net	$ 3,200
Floating rate subordinated promissory notes due December 2025 | BTH | Prime Rate
Debt Instrument [Line Items]
Interest Rate	0.50%
Floating rate subordinated promissory notes due December 2025 | BTH | Prime Rate | Minimum
Debt Instrument [Line Items]
Interest Rate	3.875%
Floating rate subordinated promissory notes due December 2025 | BTH | Prime Rate | Maximum
Debt Instrument [Line Items]
Interest Rate	6.125%
Floating rate subordinated promissory notes due December 2028 | BTH
Debt Instrument [Line Items]
Subordinated indebtedness, net	$ 1,900
Floating rate subordinated promissory notes due December 2028 | BTH | Prime Rate
Debt Instrument [Line Items]
Interest Rate	0.75%
Floating rate subordinated promissory notes due December 2028 | BTH | Prime Rate | Minimum
Debt Instrument [Line Items]
Interest Rate	3.875%
Floating rate subordinated promissory notes due December 2028 | BTH | Prime Rate | Maximum
Debt Instrument [Line Items]
Interest Rate	6.125%
Fixed to floating rate subordinated promissory notes due June 2031 | BTH
Debt Instrument [Line Items]
Interest Rate	4%
Subordinated indebtedness, net	$ 1,000
Fixed to floating rate subordinated promissory notes due June 2031 | BTH | Prime Rate
Debt Instrument [Line Items]
Interest Rate	0.75%
Fixed to floating rate subordinated promissory notes due June 2031 | BTH | Prime Rate | Minimum
Debt Instrument [Line Items]
Interest Rate	3.875%
Fixed to floating rate subordinated promissory notes due June 2031 | BTH | Prime Rate | Maximum
Debt Instrument [Line Items]
Interest Rate	6.125%
Legacy subordinated indebtedness | BTH
Debt Instrument [Line Items]
Subordinated indebtedness, net	$ 143,129

Borrowings - Summary of Terms o

Borrowings - Summary of Terms of Current Debentures (Details) - Subordinated indebtedness, net - USD ($) $ in Thousands			9 Months Ended
	Sep. 13, 2023	Sep. 01, 2023	Sep. 30, 2023
Debt Instrument [Line Items]
Outstanding Amount			$ 18,043
Unamortized original issue discount			(1,026)
Unamortized purchase accounting discount			(683)
Total			16,334
CTB Statutory Trust I
Debt Instrument [Line Items]
Outstanding Amount			$ 6,702
Current Rate			8.37%
CTB Statutory Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Interest Rate			3.30%
CTB Statutory Trust I | Maximum
Debt Instrument [Line Items]
Maximum Rate			12.50%
First Louisiana Statutory Trust I
Debt Instrument [Line Items]
Outstanding Amount			$ 4,124
Current Rate			7.47%
First Louisiana Statutory Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Interest Rate	0.26161%		1.80%
First Louisiana Statutory Trust I | Maximum
Debt Instrument [Line Items]
Maximum Rate			16%
BT Holdings Trust I
Debt Instrument [Line Items]
Outstanding Amount			$ 7,217
Current Rate			7.30%
BT Holdings Trust I | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Interest Rate		0.26161%	1.64%

Derivative Financial Instrume_3

Derivative Financial Instruments - Fair Value of Derivative Instruments on the Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Notional amounts	$ 799,207	$ 814,866
Fair Values	352	415
Interest Rate Swaps | Derivatives Not Designated as Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional amounts	366,934	352,842
Fair Values	27,991	25,482
Interest Rate Swaps | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional amounts	360,119	345,742
Fair Values	(27,517)	(25,175)
Risk Participation Derivative | Derivatives Not Designated as Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional amounts	20,000	59,738
Fair Values	1	0
Forward Commitment To Purchase Forward-Settling Mortgage-Backed Securities | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional amounts	10,000	7,000
Fair Values	(153)	(100)
Forward Commitment To Purchase Treasury Notes | Derivatives Not Designated as Hedging Instruments | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional amounts	23,500	31,500
Fair Values	(365)	0
Forward Commitments to Sell | Derivatives Not Designated as Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional amounts	4,500	8,500
Fair Values	53	7
Interest Rate-Lock Commitments | Derivatives Not Designated as Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional amounts	14,154	9,544
Fair Values	342	201
Cash Flow Hedging | Interest Rate Swaps | Derivatives Designated as Cash Flow Hedging Instruments | Other Assets
Derivatives, Fair Value [Line Items]
Notional amounts	10,500	10,500
Fair Values	$ 1,106	$ 1,043

Derivative Financial Instrume_4

Derivative Financial Instruments - Weighted-average Rates Paid and Received (Details) - Interest Rate Swaps	Sep. 30, 2023	Dec. 31, 2022
Cash flow hedges | Paid
Derivative [Line Items]
Weighted-Average Interest Rate	4.24%	4.98%
Cash flow hedges | Received
Derivative [Line Items]
Weighted-Average Interest Rate	8.25%	5.72%
Non-Hedging | Financial Institution | Paid
Derivative [Line Items]
Weighted-Average Interest Rate	4.77%	3.72%
Non-Hedging | Financial Institution | Received
Derivative [Line Items]
Weighted-Average Interest Rate	7.87%	5.75%
Non-Hedging | Customer | Paid
Derivative [Line Items]
Weighted-Average Interest Rate	7.87%	5.75%
Non-Hedging | Customer | Received
Derivative [Line Items]
Weighted-Average Interest Rate	4.77%	3.72%

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, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Amount of loss recognized in mortgage banking revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized on derivatives not designated as hedging instruments	$ (1,102)	$ (1,317)	$ (1,613)	$ (3,537)
Amount of gain recognized in other non-interest income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized on derivatives not designated as hedging instruments	$ 82	$ 210	$ 167	$ 652

Derivative Financial Instrume_6

Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash collateral on deposit	$ 4	$ 7.6

Stock and Incentive Compensat_3

Stock and Incentive Compensation Plans - Narrative (Details)		3 Months Ended		9 Months Ended
	Aug. 01, 2022 shares	Sep. 30, 2023 USD ($) shares	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) category shares	Sep. 30, 2022 USD ($)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock compensation expense		$ 1,335,000	$ 970,000	$ 3,886,000	$ 2,548,000
Common Stock | BTH
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock converted (in shares) | shares	611,676
Employee Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Maximum number of common stock available for issuance (in shares) | shares		1,000,000		1,000,000
Stock repurchase program, discount percentage				15%
Offering period				1 year
Unrecognized compensation cost		$ 312,000		$ 312,000
Unrecognized compensation cost weighted average period for recognition				8 months 1 day
Stock compensation expense		114,000	83,000	$ 314,000	235,000
PSU
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Unrecognized compensation cost		2,800,000		$ 2,800,000
Unrecognized compensation cost weighted average period for recognition				2 years 1 month 6 days
Target percentage				100%
Performance period (in years)				3 years
Stock compensation expense		41,000	134,000	$ 336,000	283,000
Expiration period				3 years
Number of categories | category				2
PSU | Minimum
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Target percentage				0%
PSU | Maximum
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Target percentage				150%
Stock Options
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock compensation expense		0	$ 0	$ 0	$ 0
Expiration period				20 years
RSAs
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Unrecognized compensation cost		342,000		$ 342,000
Unrecognized compensation cost weighted average period for recognition				4 months 24 days
RSAs | Minimum
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Service period in which time-vested awards are earned				1 year
RSAs | Maximum
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Service period in which time-vested awards are earned				7 years
RSUs
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Unrecognized compensation cost		$ 10,600,000		$ 10,600,000
Unrecognized compensation cost weighted average period for recognition				3 years 9 months 18 days
RSUs | Minimum
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Service period in which time-vested awards are earned				1 year
RSUs | Maximum
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Service period in which time-vested awards are earned				7 years
2012 Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Maximum number of common stock available for issuance (in shares) | shares		33,097		33,097

Stock and Incentive Compensat_4

Stock and Incentive Compensation Plans - Black-Scholes Option Pricing Model (Details) - Employee Stock - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	1 year	1 year	1 year	1 year
Dividend yield (in dollars per share)	$ 2.08	$ 1.52	$ 1.81	$ 1.38
Risk-free interest rate	4.94%	2%	3.52%	0.98%
Expected volatility	31.12%	32.56%	31.81%	39.75%

Stock and Incentive Compensat_5

Stock and Incentive Compensation Plans - Compensation Expense (Details) - Employee Stock - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
ESPP shares purchased (in shares)	0	0	46,213	26,089
Shares available for issuance under the ESPP (in shares)	927,698	973,911	927,698	973,911

Stock and Incentive Compensat_6

Stock and Incentive Compensation Plans - Share-based Compensation Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock compensation expense	$ 1,335	$ 970	$ 3,886	$ 2,548
Related tax benefits recognized in net income	280	204	816	535
RSA & RSU
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock compensation expense	1,180	753	3,236	2,030
PSU
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock compensation expense	41	134	336	283
ESPP
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock compensation expense	$ 114	$ 83	$ 314	$ 235

Stock and Incentive Compensat_7

Stock and Incentive Compensation Plans - Time-vested Award Activity (Details) - $ / shares	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
RSAs
Shares
Nonvested shares, beginning balance (in shares)	27,391	48,048
Granted (in shares)	16,788	12,840
Vested (in shares)	(17,237)	(22,682)
Nonvested shares, ending balance (in shares)	26,942	38,206
Weighted Average Grant-Date Fair Value
Nonvested shares, beginning balance (in dollars per share)	$ 35.37	$ 35.27
Granted (in dollars per share)	28.61	37.39
Vested (in dollars per share)	34.33	35.73
Nonvested shares, ending balance (in dollars per share)	$ 31.82	$ 35.71
RSUs
Shares
Nonvested shares, beginning balance (in shares)	270,390	73,977
Granted (in shares)	113,674	87,795
Vested (in shares)	(53,263)	(23,260)
Forfeited (in shares)	(10,014)	(1,841)
Nonvested shares, ending balance (in shares)	320,787	136,671
Weighted Average Grant-Date Fair Value
Nonvested shares, beginning balance (in dollars per share)	$ 39.63	$ 40.64
Granted (in dollars per share)	35.70	43.09
Vested (in dollars per share)	41.94	40.40
Forfeited (in dollars per share)	43.44	43.48
Nonvested shares, ending balance (in dollars per share)	$ 37.73	$ 42.21
PSUs
Shares
Nonvested shares, beginning balance (in shares)	157,367	0
Granted (in shares)	43,591	27,632
Forfeited (in shares)	(3,116)	0
Nonvested shares, ending balance (in shares)	197,842	27,632
Weighted Average Grant-Date Fair Value
Nonvested shares, beginning balance (in dollars per share)	$ 29.06	$ 0
Granted (in dollars per share)	30.69	40.85
Forfeited (in dollars per share)	30.69	0
Nonvested shares, ending balance (in dollars per share)	$ 27.96	$ 40.85

Stock and Incentive Compensat_8

Stock and Incentive Compensation Plans - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Number of Shares
Outstanding at beginning of period (in shares)	504,437	39,200	39,200
BTH options converted to OBNK options (in shares)		611,676
Exercised (in shares)	(55,897)	(60,687)
Expired (in shares)	(11,081)	(331)
Outstanding at end of period (in shares)	437,459	589,858	504,437	39,200
Outstanding and exercisable (in shares)	437,459	589,858
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 29.46	$ 10.73	$ 10.73
BTH options converted to OBNK options (in dollars per share)		28.62
Exercised (in dollars per share)	17.35	19.67
Expired (in dollars per share)	33.63	37.01
Outstanding at end of period (in dollars per share)	30.90	28.05	$ 29.46	$ 10.73
Outstanding and exercisable (in dollars per share)	$ 30.90	$ 28.05
Weighted average remaining contractual term (in years)	3 years 10 months 17 days	4 years 11 months 15 days	5 years 1 month 17 days	2 years 3 months 10 days
Weighted average remaining contractual term, outstanding and exercisable (in years)	3 years 10 months 17 days	4 years 11 months 15 days
Aggregate Intrinsic Value	$ 917	$ 5,971	$ 3,736	$ 1,262
Aggregate Intrinsic Value, exercised	918	1,373
Aggregate Intrinsic Value, outstanding and exercisable	$ 917	$ 5,971

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 997,859	$ 992,587	$ 949,943	$ 646,373	$ 676,865	$ 730,211	$ 949,943	$ 730,211
Net change	(19,850)	(14,398)	21,394	(59,254)	(50,089)	(71,619)	(12,854)	(180,962)
Ending balance	998,945	997,859	992,587	907,024	646,373	676,865	998,945	907,024
Unrealized (Loss) Gain on AFS Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(160,700)			5,809	(160,700)	5,809
Net change							(12,904)	(181,919)
Ending balance	(173,604)			(176,110)			(173,604)	(176,110)
Unrealized Gain (Loss) on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			825			(80)	825	(80)
Net change							50	957
Ending balance	875			877			875	877
Accumulated Other Comprehensive (Loss) Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(152,879)	(138,481)	(159,875)	(115,979)	(65,890)	5,729	(159,875)	5,729
Net change	(19,850)	(14,398)	21,394	(59,254)	(50,089)	(71,619)
Ending balance	$ (172,729)	$ (152,879)	$ (138,481)	$ (175,233)	$ (115,979)	$ (65,890)	$ (172,729)	$ (175,233)

Capital and Regulatory Matter_2

Capital and Regulatory Matters - Narrative (Details) - USD ($)	1 Months Ended	9 Months Ended		12 Months Ended
	Jul. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Resale Agreement Counterparty [Line Items]
Transition regulatory capital amount		$ 3,200,000		$ 5,100,000
Purchase price	$ 50,000,000
Stock buyback program, period	3 years
Repurchase of stock (in shares)		0	0
Origin Bank | Origin Bank
Resale Agreement Counterparty [Line Items]
Aggregate dividends without prior regulatory approval		$ 141,400,000

Capital and Regulatory Matter_3

Capital and Regulatory Matters - Actual Capital Amounts and Ratios (Details) $ in Thousands	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Origin Bancorp, Inc.
Common Equity Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 988,951	$ 906,859
Actual, ratio	0.1146	0.1093
Minimum capital required, amount	$ 604,324	$ 580,857
Minimum capital required, ratio	7%	7%
Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 1,004,742	$ 922,584
Actual, ratio	0.1164	0.1112
Minimum capital required, amount	$ 733,823	$ 705,327
Minimum capital required, ratio	0.0850	0.0850
Total Capital to Risk-Weighted Assets
Actual, amount	$ 1,261,080	$ 1,180,665
Actual, ratio	0.1461	0.1423
Minimum capital required, amount	$ 906,488	$ 871,290
Minimum capital required, ratio	0.1050	0.1050
Leverage Ratio
Actual, amount	$ 1,004,742	$ 922,584
Actual, ratio	0.1000	0.0966
Minimum capital required, amount	$ 402,029	$ 381,955
Minimum capital required, ratio	0.0400	0.0400
Origin Bank | Origin Bank
Common Equity Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 1,034,519	$ 952,579
Actual, ratio	0.1202	0.1150
Minimum capital required, amount	$ 602,430	$ 579,775
Minimum capital required, ratio	7%	7%
Well capitalized, amount	$ 559,399	$ 538,363
Well capitalized, ratio	6.50%	6.50%
Tier 1 Capital to Risk-Weighted Assets
Actual, amount	$ 1,034,519	$ 952,579
Actual, ratio	0.1202	0.1150
Minimum capital required, amount	$ 731,522	$ 704,013
Minimum capital required, ratio	0.0850	0.0850
Well capitalized, amount	$ 688,492	$ 662,600
Well capitalized, ratio	0.0800	0.0800
Total Capital to Risk-Weighted Assets
Actual, amount	$ 1,201,282	$ 1,109,257
Actual, ratio	0.1396	0.1339
Minimum capital required, amount	$ 903,647	$ 869,661
Minimum capital required, ratio	0.1050	0.1050
Well capitalized, amount	$ 860,616	$ 828,249
Well capitalized, ratio	0.1000	0.1000
Leverage Ratio
Actual, amount	$ 1,034,519	$ 952,579
Actual, ratio	0.1033	0.0994
Minimum capital required, amount	$ 400,778	$ 383,359
Minimum capital required, ratio	0.0400	0.0400
Well capitalized, amount	$ 500,973	$ 479,198
Well capitalized, ratio	0.0500	0.0500

Commitments and Contingencies -

Commitments and Contingencies - Off-Balance Sheet Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Less than One Year	$ 1,024,231	$ 1,180,666
One-Three Years	968,323	990,476
Three-Five Years	480,726	553,069
Greater than Five Years	101,953	96,783
Off-balance sheet financial instrument	2,575,233	2,820,994
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Less than One Year	921,782	1,093,744
One-Three Years	961,365	988,212
Three-Five Years	447,769	553,069
Greater than Five Years	101,953	96,783
Off-balance sheet financial instrument	2,432,869	2,731,808
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Less than One Year	102,449	86,922
One-Three Years	6,958	2,264
Three-Five Years	32,957	0
Greater than Five Years	0	0
Off-balance sheet financial instrument	142,364	89,186
Unconditional cancellable commitments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instrument	$ 723,300	$ 594,600

Commitments and Contingencies_2

Commitments and Contingencies - Narrative (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($) letter_of_credit	Dec. 31, 2022 USD ($) letter_of_credit
Lending-related Commitments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Reserve for lending related commitments	$ 4,700	$ 4,600
BTH | Retention Bonuses And Guaranteed Minimum Incentives
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contingent liability	1,800
BTH | Retention Bonuses
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contingent liability	846
Contingent consideration, due in next fiscal year	$ 423
Contingent consideration, due in next fiscal year, percentage	50%
Contingent consideration, due in year two	$ 423
Contingent consideration, due in year two, percentage	50%
BTH | Guaranteed Minimum Incentives
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contingent liability	$ 950
Contingent consideration, due in next fiscal year, percentage	50%
Contingent consideration, due in year two, percentage	50%
Lincoln Agency, LLC. and Pulley-White Insurance Agency, Inc.
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Contingent liability	$ 1,500
Contingent consideration, due in next fiscal year, percentage	30%
Contingent consideration, due in year two, percentage	70%
Revenue growth objectives, term	3 years
Letter of credit | FHLB
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of instruments | letter_of_credit	29	28
Maximum borrowing capacity	$ 584,100	$ 277,400

Business Combinations - Narrati

Business Combinations - Narrative (Details)	Aug. 01, 2022 USD ($) shares	Jul. 29, 2022 USD ($) $ / shares	Sep. 30, 2023 USD ($) banking_center	Dec. 31, 2022 USD ($)	Jul. 31, 2022 location
Business Acquisition [Line Items]
Goodwill			$ 128,679,000	$ 128,679,000
Assets	$ 9,840,000,000		9,733,303,000	9,686,067,000
Loans	6,770,000,000		7,472,886,000	7,002,861,000
Deposits	$ 7,990,000,000		$ 8,374,488,000	$ 7,775,702,000
Number of banking centers | banking_center			60
Common Stock
Business Acquisition [Line Items]
Stock price (in dollars per share) | $ / shares		$ 43.07
BTH
Business Acquisition [Line Items]
Percentage of interests acquired	100%
Consideration transaction value		$ 307,800,000
Goodwill	$ 94,500,000		$ 94,526,000
Goodwill, tax deductible amount	$ 0
Number of banking centers | location					13
BTH | Common Stock
Business Acquisition [Line Items]
Number of shares issued (in shares) | shares	6,794,910
Stock converted (in shares) | shares	611,676

Business Combinations - Fair Va

Business Combinations - Fair Values of Assets Acquired and Liabilities Assumed from Acquisition of BTH (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Aug. 01, 2022
Liabilities Assumed:
Goodwill	$ 128,679	$ 128,679
BTH
Assets Acquired:
Cash and cash equivalents	69,953
Investment securities	456,808
Loans acquired	1,239,532
Allowance for credit losses on loans	(5,527)
Loans receivable, net	1,234,005
Premises and equipment	17,825
Non-marketable equity securities held in other financial institutions	5,873
Core deposit intangible	38,356
Other assets	23,778
Total assets acquired	1,846,598
Liabilities Assumed:
Noninterest-bearing deposits	398,089
Interest-bearing deposits	865,864
Time deposits	302,506
Total deposits	1,566,459
Securities sold under agreements to repurchase	10,133
Subordinated indebtedness, net	44,074
Accrued expenses and other liabilities	12,674
Total liabilities assumed	1,633,340
Net assets acquired	213,258
Purchase price	307,784
Goodwill	$ 94,526		$ 94,500

Business Combinations - Purchas

Business Combinations - Purchased Credit Deteriorated ("PCD") Loans (Details) - USD ($) $ in Thousands				3 Months Ended	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022	Aug. 01, 2022	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Business Acquisition [Line Items]
PCD allowance for credit loss at merger				$ 5,527		$ 5,527
Non-credit related (premium)/discount	$ 179	$ 2,200			$ 2,067	1,187
Fair value of PCD loans	$ 36,800	$ 48,100
BTH
Business Acquisition [Line Items]
Unpaid principal balance			$ 52,212
PCD allowance for credit loss at merger			5,527
Non-credit related (premium)/discount			(442)
Fair value of PCD loans			47,127
Real estate | Construction/land/land development
Business Acquisition [Line Items]
PCD allowance for credit loss at merger				0		0
Real estate | BTH | Commercial Real Estate
Business Acquisition [Line Items]
Unpaid principal balance			10,731
PCD allowance for credit loss at merger			1
Non-credit related (premium)/discount			(277)
Fair value of PCD loans			11,007
Real estate | BTH | Construction/land/land development
Business Acquisition [Line Items]
Unpaid principal balance			1,315
PCD allowance for credit loss at merger			0
Non-credit related (premium)/discount			(92)
Fair value of PCD loans			1,407
Real estate | BTH | Residential Real Estate
Business Acquisition [Line Items]
Unpaid principal balance			2,880
PCD allowance for credit loss at merger			0
Non-credit related (premium)/discount			3
Fair value of PCD loans			2,877
Commercial and Industrial
Business Acquisition [Line Items]
PCD allowance for credit loss at merger				5,525		5,525
Commercial and Industrial | BTH | Commercial and Industrial
Business Acquisition [Line Items]
Unpaid principal balance			37,117
PCD allowance for credit loss at merger			5,525
Non-credit related (premium)/discount			(77)
Fair value of PCD loans			31,669
Mortgage warehouse lines of credit
Business Acquisition [Line Items]
PCD allowance for credit loss at merger				0		0
Mortgage warehouse lines of credit | BTH | Mortgage warehouse lines of credit
Business Acquisition [Line Items]
Unpaid principal balance			0
PCD allowance for credit loss at merger			0
Non-credit related (premium)/discount			0
Fair value of PCD loans			0
Consumer
Business Acquisition [Line Items]
PCD allowance for credit loss at merger				$ 1		$ 1
Consumer | BTH | Consumer
Business Acquisition [Line Items]
Unpaid principal balance			169
PCD allowance for credit loss at merger			1
Non-credit related (premium)/discount			1
Fair value of PCD loans			$ 167

Business Combinations - Pro For

Business Combinations - Pro Forma Information (Details) - BTH $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) $ / shares shares
Business Acquisition, Pro Forma Information [Abstract]
Net interest income	$ 243,932
Noninterest income	49,425
Net income	$ 76,286
Pro-forma earnings per share, basic (in dollars per share) | $ / shares	$ 2.50
Pro-forma earnings per share, diluted (in dollars per share) | $ / shares	$ 2.48
Weighted average shares outstanding (in shares) | shares	32,092,071