Byline Bancorp (BY) 10-Q 1 Nov 24 2024 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2024	Oct. 30, 2024
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Trading Symbol	BY
Entity Registrant Name	Byline Bancorp, Inc.
Entity Central Index Key	0001702750
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Interactive Data Current	Yes
Document Quarterly Report	true
Document Transition Report	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	001-38139
Entity Tax Identification Number	36-3012593
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	180 North LaSalle Street
Entity Address, Address Line Two	Suite 300
Entity Address, City or Town	Chicago
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60601
City Area Code	773
Local Phone Number	244-7000
Entity Common Stock, Shares Outstanding		44,385,204
Title of each class	Common Stock
Name of each exchange on which registered	NYSE

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
ASSETS
Cash and due from banks	$ 77,047	$ 60,431
Interest bearing deposits with other banks	375,549	165,705
Cash and cash equivalents	452,596	226,136
Equity and other securities, at fair value	9,132	8,743
Securities available-for-sale	1,502,108	1,342,480
Securities held-to-maturity, at amortized cost (fair value at September 30, 2024 - $603; December 31,2023 - $1,149)	605	1,157
Restricted stock, at cost	22,743	16,304
Loans held for sale	19,955	18,005
Loans and leases:
Loans And Leases Receivables, Gross	6,879,446	6,684,306
Allowance for credit losses - loans and leases	(98,860)	(101,686)
Net loans and leases	6,780,586	6,582,620
Servicing assets, at fair value	18,945	19,844
Premises and equipment, net	63,135	66,627
Goodwill and other intangible assets, net	199,443	203,478
Bank-owned life insurance	99,295	96,900
Deferred tax assets, net	37,737	50,058
Accrued interest receivable and other assets	218,036	249,615
Total assets	9,424,316	8,881,967
LIABILITIES
Non-interest-bearing demand deposits	1,729,908	1,905,876
Interest-bearing deposits	5,767,979	5,271,123
Total deposits	7,497,887	7,176,999
Other borrowings	518,786	395,190
Subordinated notes, net	73,997	73,866
Junior subordinated debentures	70,783	70,452
Accrued interest payable and other liabilities	166,551	175,309
Total liabilities	8,328,004	7,891,816
COMMITMENTS AND CONTINGENT LIABILITIES (Note 14)
STOCKHOLDERS’ EQUITY
Preferred stock	0	0
Common stock	454	451
Additional paid-in capital	714,864	710,488
Retained earnings	507,576	429,036
Treasury stock, at cost	(47,904)	(49,707)
Accumulated other comprehensive income (loss), net of tax	(78,678)	(100,117)
Total stockholders’ equity	1,096,312	990,151
Total liabilities and stockholders’ equity	$ 9,424,316	$ 8,881,967
Preferred shares par value	$ 0.01	$ 0.01
Preferred stock, Shares authorized	25,000,000	25,000,000
Preferred stock, Shares issued	0	0
Preferred stock, Shares outstanding	0	0
Treasury preferred shares	0	0
Common stock, voting par value	$ 0.01	$ 0.01
Common stock, voting shares authorized	150,000,000	150,000,000
Common stock, voting shares issued	46,180,735	45,714,241
Common stock, voting shares outstanding	44,384,706	43,764,056
Common stock, voting treasury shares	1,796,029	1,950,185

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Securities available-for-sale, amortized cost	$ 1,635,419	$ 1,516,801
Securities held-to-maturity, fair value	$ 603	$ 1,149

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
INTEREST AND DIVIDEND INCOME
Interest and fees on loans and leases	$ 128,336	$ 125,465	$ 378,651	$ 316,942
Interest on securities	11,260	8,415	31,508	21,574
Other interest and dividend income	6,840	2,710	16,167	5,348
Total interest and dividend income	146,436	136,590	426,326	343,864
INTEREST EXPENSE
Deposits	52,076	37,163	145,641	78,184
Other borrowings	3,919	3,981	12,203	14,110
Subordinated notes and debentures	2,986	2,994	8,960	7,234
Total interest expense	58,981	44,138	166,804	99,528
Net interest income	87,455	92,452	259,522	244,336
Provision for credit losses	7,475	8,803	20,163	24,418
Net interest income after provision for credit losses	79,980	83,649	239,359	219,918
NON-INTEREST INCOME
Fees and service charges on deposits	2,591	2,372	7,566	6,725
Loan servicing revenue	3,174	3,369	9,754	10,126
Loan servicing asset revaluation	(2,183)	(3,646)	(5,354)	(3,855)
ATM and interchange fees	1,143	1,205	3,381	3,380
Change in fair value of equity securities, net	388	(313)	390	230
Net gains on sales of loans	5,864	6,473	17,433	17,325
Wealth management and trust income	1,101	939	3,200	2,902
Other non-interest income	2,307	1,977	6,332	4,979
Total non-interest income	14,385	12,376	42,702	41,812
NON-INTEREST EXPENSE
Salaries and employee benefits	34,974	34,969	102,838	95,005
Occupancy and equipment expense, net	4,373	5,314	14,296	14,162
Impairment loss on assets held for sale	0	0	0	20
Loan and lease related expenses	703	836	2,129	2,287
Legal, audit and other professional fees	3,643	3,805	10,070	10,594
Data processing	4,215	6,472	12,396	14,527
Net (gain) loss recognized on other real estate owned and other related expenses	74	111	(86)	296
Other intangible assets amortization expense	1,345	1,551	4,035	4,461
Other non-interest expense	5,000	4,833	15,668	14,667
Total non-interest expense	54,327	57,891	161,346	156,019
INCOME BEFORE PROVISION FOR INCOME TAXES	40,038	38,134	120,715	105,711
PROVISION FOR INCOME TAXES	9,710	9,912	30,276	27,437
NET INCOME	$ 30,328	$ 28,222	$ 90,439	$ 78,274
EARNINGS PER COMMON SHARE
Basic	$ 0.7	$ 0.66	$ 2.08	$ 2.01
Diluted	$ 0.69	$ 0.65	$ 2.07	$ 1.98

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Other Comprehensive Income [Abstract]
Net income	$ 30,328	$ 28,222	$ 90,439	$ 78,274
Securities available-for-sale
Unrealized holding gains (losses) arising during the period	53,138	(37,330)	41,010	(36,553)
Tax effect	(14,172)	9,970	(10,937)	9,763
Net of tax	38,966	(27,360)	30,073	(26,790)
Cash flow hedges
Unrealized holding gains (losses) arising during the period	(3,784)	4,648	2,417	13,357
Reclassification adjustments for net gains included in net income	(4,637)	(4,562)	(14,192)	(10,381)
Tax effect	2,246	(23)	3,141	(795)
Net of tax	(6,175)	63	(8,634)	2,181
Total other comprehensive income (loss)	32,791	(27,297)	21,439	(24,609)
Comprehensive income	$ 63,119	$ 925	$ 111,878	$ 53,665

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock Common	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2022	$ 765,816	$ 389	$ 598,297	$ 335,794	$ (51,114)	$ (117,550)
Beginning balance, shares at Dec. 31, 2022		37,492,775
Net income	78,274			78,274
Other comprehensive income (loss), net of tax	(24,609)					(24,609)
Issuance of common stock upon exercise of stock options, net	347		347
Issuance of common stock upon exercise of stock options, net shares		29,766
Restricted stock activity, net	(1,830)	$ 2	(1,909)		77
Restricted stock activity, shares		225,217
Issuance of common stock in connection with employee stock purchase plan	708				708
Issuance of common stock in connection with employee stock purchase plan, shares		39,122
Issuance of common stock due to business combination ,net of issuance costs, shares		5,932,323
Issuance of common stock due to business combination ,net of issuance costs	107,017	$ 59	106,958
Cash dividends declared on common stock	(10,700)			(10,700)
Share-based compensation expense	4,922		4,922
Ending balance at Sep. 30, 2023	919,945	$ 450	708,615	403,368	(50,329)	(142,159)
Ending balance, shares at Sep. 30, 2023		43,719,203
Beginning balance at Dec. 31, 2022	765,816	$ 389	598,297	335,794	(51,114)	(117,550)
Beginning balance, shares at Dec. 31, 2022		37,492,775
Ending balance at Dec. 31, 2023	990,151	$ 451	710,488	429,036	(49,707)	(100,117)
Ending balance, shares at Dec. 31, 2023		43,764,056
Beginning balance at Jun. 30, 2023	813,942	$ 391	599,718	379,078	(50,383)	(114,862)
Beginning balance, shares at Jun. 30, 2023		37,752,002
Net income	28,222			28,222
Other comprehensive income (loss), net of tax	(27,297)					(27,297)
Issuance of common stock upon exercise of stock options, net	347		347
Issuance of common stock upon exercise of stock options, net shares		29,766
Restricted stock activity, net	(59)		(113)		54
Restricted stock activity, shares		5,112
Issuance of common stock due to business combination ,net of issuance costs, shares		5,932,323
Issuance of common stock due to business combination ,net of issuance costs	107,017	$ 59	106,958
Cash dividends declared on common stock	(3,932)			(3,932)
Share-based compensation expense	1,705		1,705
Ending balance at Sep. 30, 2023	919,945	$ 450	708,615	403,368	(50,329)	(142,159)
Ending balance, shares at Sep. 30, 2023		43,719,203
Beginning balance at Dec. 31, 2023	990,151	$ 451	710,488	429,036	(49,707)	(100,117)
Beginning balance, shares at Dec. 31, 2023		43,764,056
Net income	90,439			90,439
Other comprehensive income (loss), net of tax	21,439					21,439
Issuance of common stock upon exercise of stock options, net	1,536	$ 2	2,205		(671)
Issuance of common stock upon exercise of stock options, net shares		293,638
Restricted stock activity, net	(1,714)	$ 1	(3,411)		1,696
Restricted stock activity, shares		294,256
Issuance of common stock in connection with employee stock purchase plan	778				778
Issuance of common stock in connection with employee stock purchase plan, shares		32,756
Cash dividends declared on common stock	(11,899)			(11,899)
Share-based compensation expense	5,582		5,582
Ending balance at Sep. 30, 2024	1,096,312	$ 454	714,864	507,576	(47,904)	(78,678)
Ending balance, shares at Sep. 30, 2024		44,384,706
Beginning balance at Jun. 30, 2024	1,033,014	$ 452	710,792	481,232	(47,993)	(111,469)
Beginning balance, shares at Jun. 30, 2024		44,180,829
Net income	30,328			30,328
Other comprehensive income (loss), net of tax	32,791					32,791
Issuance of common stock upon exercise of stock options, net	2,316	$ 2	2,314
Issuance of common stock upon exercise of stock options, net shares		205,652
Restricted stock activity, net	(48)		(137)		89
Restricted stock activity, shares		(1,775)
Cash dividends declared on common stock	(3,984)			(3,984)
Share-based compensation expense	1,895		1,895
Ending balance at Sep. 30, 2024	$ 1,096,312	$ 454	$ 714,864	$ 507,576	$ (47,904)	$ (78,678)
Ending balance, shares at Sep. 30, 2024		44,384,706

CONDENSED CONSOLIDATED STATEM_6

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Stockholders' Equity [Abstract]
Dividends per share	$ 0.09	$ 0.09	$ 0.27	$ 0.27

CONDENSED CONSOLIDATED STATEM_7

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 90,439	$ 78,274
Adjustments to reconcile net income to net cash from operating activities:
Provision for credit losses	20,163	24,418
Impairment loss on premises and equipment	1,069	0
Impairment loss on operating lease right-of-use asset	194	395
Impairment loss on assets held for sale	0	20
Depreciation and amortization of premises and equipment	3,829	3,188
Net amortization (accretion) of securities	(1,383)	1,497
Net change in fair value of equity securities	(390)	(230)
Net losses (gains) on sales and disposal of premises and equipment	(477)	142
Net gains on sales of loans	(17,433)	(17,325)
Originations of U.S. government guaranteed loans	(230,848)	(231,091)
Proceeds from U.S. government guaranteed loans sold	216,376	256,601
Accretion of premiums and discounts on acquired loans, net	(10,922)	(11,616)
Net change in servicing assets	899	(571)
Net losses (gains) on sales and valuation adjustments of other real estate owned	(37)	444
Net amortization of other acquisition accounting adjustments	4,877	5,447
Amortization of subordinated debt issuance cost	131	131
Accretion of junior subordinated debentures discount	331	337
Share-based compensation expense	5,582	4,922
Deferred tax benefit (expense)	4,523	(196)
Increase in cash surrender value of bank owned life insurance	(2,396)	(1,712)
Changes in assets and liabilities:
Accrued interest receivable and other assets	16,107	8,452
Accrued interest payable and other liabilities	21,641	49,506
Net cash provided by operating activities	122,275	171,033
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of securities available-for-sale	(316,869)	(121,166)
Proceeds from maturities and calls of securities available-for-sale	88,330	7,480
Proceeds from paydowns of securities available-for-sale	110,708	76,451
Proceeds from sales of securities available-for-sale	0	163,649
Proceeds from maturities and calls of securities held-to-maturity	550	1,545
Redemptions (purchases) of Federal Home Loan Bank stock, net	(6,439)	755
Proceeds from other loans sold	0	6,750
Net change in loans and leases	(208,445)	(382,183)
Purchases of premises and equipment	(1,892)	(2,856)
Proceeds from sales of premises and equipment	365	0
Proceeds from sales of assets held for sale	2,221	1,359
Proceeds from sales of other real estate owned	740	3,173
Net cash received in acquisition of business	0	7,834
Net cash used in investing activities	(330,731)	(237,209)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	320,046	293,092
Proceeds from line of credit	0	15,000
Repayments of line of credit	(11,250)	0
Proceeds from term loan	0	20,000
Repayments of term loan	(5,000)	0
Proceeds from short-term borrowings	2,170,000	15,643,200
Repayments of short-term borrowings	(2,025,000)	(15,668,200)
Proceeds from BTFP advances	200,000	0
Repayments of BTFP advances	(200,000)	0
Net increase (decrease) in securities sold under agreements to repurchase	(5,154)	22,379
Dividends paid on common stock	(11,920)	(10,709)
Proceeds from issuance of common stock	3,194	949
Net cash provided by financing activities	434,916	315,711
NET CHANGE IN CASH AND CASH EQUIVALENTS	226,460	249,535
CASH AND CASH EQUIVALENTS, beginning of period	226,136	179,353
CASH AND CASH EQUIVALENTS, end of period	452,596	428,888
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for interest	167,158	82,310
Cash paid during the period for taxes	3,229	6,352
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Transfer of loans to other real estate owned	35	571
Total assets acquired from acquisition	0	1,160,491
Value ascribed to goodwill	0	33,352
Total liabilities assumed from acquisition	0	1,054,929
Common stock issued due to acquisition of business	0	107,017
Right of use asset exchanged for operating lease liabilties	1,803	956
Common share withholding	2,716	1,830
Common dividend declared, not paid	$ (21)	$ (9)

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 30,328	$ 28,222	$ 90,439	$ 78,274

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 30, 2024
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

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Note 1—Basis of Present ation These unaudited interim condensed consolidated financial statements include the accounts of Byline Bancorp, Inc., a Delaware corporation (the “Company,” “Byline,” “we,” “us,” “our”), a bank holding company whose principal activity is the ownership and management of its Illinois state chartered subsidiary bank, Byline Bank (the “Bank”), based in Chicago, Illinois. These unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the Securities and Exchange Commission (“SEC”). In preparing these financial statements, the Company has evaluated events and transactions subsequent to September 30, 2024 for potential recognition or disclosure. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the financial position and results of operations for the periods presented have been included. Certain information in footnote disclosures normally included in financial statements prepared in accordance with GAAP has been condensed or omitted pursuant to the rules and regulations of the SEC and the accounting standards for interim financial statements. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Consolidated Financial Statements as of December 31, 2023 and 2022 and for each of the three years in the period ended December 31, 2023. The Company has one reportable segment. The Company’s chief operating decision makers evaluate the operations of the Company using consolidated information for purposes of allocating resources and assessing performance. Therefore, segments disclosures are currently not required. In accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 855, “Subsequent Events,” the Company’s management has evaluated subsequent events for potential recognition or disclosure through the date of the issuance of these condensed consolidated financial statements. No subsequent events were identified that would have required a change to the condensed consolidated financial statements or disclosure in the notes to the condensed consolidated financial statements.

Accounting Pronouncements Recen

Accounting Pronouncements Recently Adopted or Issued	9 Months Ended
	Sep. 30, 2024
Accounting Changes and Error Corrections [Abstract]
Accounting Pronouncements Recently Adopted or Issued	Note 2—Accounting Pronouncements Recently Adopted or Issued The following reflect recent accounting pronouncements that have been adopted or are pending adoption by the Company. Adopted Accounting Pronouncements Fair Value Measurement (Topic 820) - In June 2022, the FASB issued ASU 2022-03, Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. The guidance in the ASU clarifies that a contractual restriction on the sale of an equity security is not considered part of the unit of account on the equity security and, therefore, is not considered in measuring fair value. The ASU also requires additional disclosures about the restriction. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within those fiscal years. The Company evaluated the accounting and disclosure requirements of this update and they did not have a material effect on the consolidated financial statements. Issued Accounting Pronouncements Pending Adoption Business Combinations (Topic 805) - In August 2023, the FASB issued ASU 2023-05, Business Combinations—Joint Venture (JV) Formations: Recognition and Initial Measurement. The guidance requires newly-formed JVs to apply a new basis of accounting to all of its contributed net assets, which results in the JV initially measuring its contributed net assets under ASC 805-20, Business Combinations. The new guidance would be applied prospectively and is effective for all newly-formed joint venture entities with a formation date on or after January 1, 2025, with early adoption permitted. The Company is evaluating the accounting and disclosure requirements of this update and the impact of adopting the new guidance on the consolidated financial statements. Segment Reporting – Improvements to Reportable Segment Disclosures (Topic 280) – In November 2023, the FASB issued ASU 2023-07 to enhance disclosures about significant segment expenses for public entities reporting segment information under Topic 280. It requires that a public entity disclose, on an annual and interim basis, significant expense categories for each reportable segment. Significant expense categories are derived from expenses that are 1) regularly reported to an entity’s chief operating decision-maker ("CODM"), and 2) included in a segment’s reported measure of profit or loss. The disclosures should include an amount for "other segment items," reflecting the difference between 1) segment revenue less significant segment expenses, and 2) the reportable segment’s profit or loss measures. It requires that a public entity disclose the title and position of the CODM and how the CODM uses the reported measure of profit or loss to assess segment performance and to allocate resources. Further it clarifies that entities with a single reportable segment must disclose both new and existing segment reporting requirements. The amendments are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Entities must adopt the guidance on a retrospective basis. The Company will include the new required disclosures upon adoption and has concluded they will not have a material effect on the consolidated financial statements. Income Taxes – Improvements to Income Tax Disclosures (Topic 740) – In December 2023, the FASB issued ASU 2023-09 to provide additional transparency into an entity’s income tax disclosures primarily related to the rate reconciliation and income taxes paid information. The standard requires that public business entities disclose, on an annual basis, specific categories in the rate reconciliation and additional information for reconciling items meeting a certain quantitative threshold. The amendments also require that entities disclose on an annual basis: 1) income taxes paid (net of refunds received) disaggregated by federal (national), state, and foreign taxes and 2) the income taxes paid (net of refunds received) disaggregated by individual jurisdictions exceeding 5% of total income taxes paid (net of refunds received). The amendments are effective for public business entities for annual periods beginning after December 15, 2024. The Company is evaluating the accounting and disclosure requirements of this update and the impact of adopting the new guidance on the consolidated financial statements.

Acquisition of a Business

Acquisition of a Business	9 Months Ended
	Sep. 30, 2024
Business Combinations [Abstract]
Acquisition of a Business	Note 3—Acquisition of a Business On July 1, 2023 , the Company acquired all of the outstanding common stock of Inland Bancorp, Inc. ("Inland") and its subsidiaries pursuant to an Agreement and Plan of Merger, dated as of November 30, 2022 (the "Merger Agreement"). Inland was merged with and into Byline. As a result of the merger, Inland’s wholly owned subsidiary bank, Inland Bank and Trust, was merged with and into Byline Bank, with Byline Bank as the surviving bank. The acquisition improves the Company’s footprint in the Chicagoland market, diversifies its commercial banking business, and strengthens the core deposit base. In a related but separate transaction, on March 31, 2023, Byline entered into a side letter agreement with the majority shareholder of Inland in which Byline agreed to purchase 2,408,992 shares of Inland common stock. The purchase price was calculated based on the terms of the Merger Agreement. The transaction was completed on June 30, 2023 , which resulted in the payment of cash in the amount of $ 9.9 million. At the effective time of the merger (the "Effective Time"), each share of Inland’s common stock was converted into the right to receive: (1) 0.19 shares of Byline’s common stock, par value $ 0.01 per share, and (2) a cash payment in the amount of $ 0.68 per share, with cash paid in lieu of any fractional shares. The per share cash consideration was based on the total $ 21.2 million divided by the outstanding shares of Inland common stock. Based on the closing price of shares of the Company’s common stock of $ 18.09 , as reported by the New York Stock Exchange, and 5,932,323 shares of common stock issued with respect to the outstanding shares of Inland common stock, the stock consideration was valued at $ 107.3 million. Options to acquire 288,200 shares of Inland common stock that were outstanding at the Effective Time were canceled, at the option holders' election, in exchange for a cash payment in accordance with the Merger Agreement of $ 424,000 , to be paid after the closing date. In addition, the 2,408,992 shares of Inland common stock purchased on June 30, 2023 were canceled as of the effective time of the transaction. The value of the total merger consideration at closing was $ 138.9 million. Stock issuance costs were $ 299,000 . The transaction resulted in goodwill of $ 33.4 million, which is nondeductible for tax purposes, as this acquisition was a nontaxable transaction. Goodwill represents the premium paid over the fair value of the net tangible and intangible assets acquired and reflects related synergies expected from the combined operations. Inland merger-related expenses, including salaries and employee benefits of $ 2.3 million, core system conversion expenses of $ 2.2 million, acquisition advisory expenses of $ 1.5 million, and other non-interest expenses of $ 301,000 related to the Inland acquisition are reflected in non-interest expense on the Consolidated Statements of Operations for the three months ended September 30, 2023. Inland merger-related expenses including core system conversion expenses of $ 3.0 million, acquisition advisory expenses of $ 2.4 million, salaries and employee benefits of $ 2.4 million, and other non-interest expenses of $ 397,000 related to the Inland acquisition are reflected in non-interest expense on the Consolidated Statements of Operations for the nine months ended September 30, 2023. There were no Inland merger-related expenses in the three and nine months ended September 30, 2024. The acquisition of Inland was accounted for using the acquisition method of accounting in accordance with ASC Topic 805. Assets acquired, liabilities assumed, and consideration exchanged were recorded at their respective acquisition date fair values. Determining the fair value of assets and liabilities involves significant judgment regarding methods and assumptions used to calculate estimated fair values. Fair value adjustments associated with this transaction were finalized during the second quarter of 2024. The following table presents a summary of the fair values of assets acquired and liabilities assumed as of the acquisition date: Assets Cash and cash equivalents $ 39,731 Securities available-for-sale 239,602 Restricted stock 3,058 Loans 808,000 Allowance for credit losses ( 10,596 ) Premises and equipment 11,307 Operating lease right-of-use asset 3,813 Other intangible assets 17,250 Bank-owned life insurance 12,455 Deferred tax assets, net 14,848 Other assets 21,023 Total assets acquired 1,160,491 Liabilities Deposits 964,491 Federal Home Loan Bank advances 40,000 Securities sold under agreements to repurchase 455 Junior subordinated debentures 32,661 Operating lease liability 4,034 Accrued expenses and other liabilities 13,288 Total liabilities assumed 1,054,929 Net assets acquired $ 105,562 Consideration paid Common stock ( 5,932,323 shares issued at $ 18.09 per share) 107,017 Cash paid 31,897 Total consideration paid 138,914 Goodwill $ 33,352 The following table presents the fair value and gross contractual amounts receivable of acquired non-credit-deteriorated loans from the Inland acquisition, and their respective expected contractual cash flows as of the acquisition date: Fair value $ 582,831 Gross contractual amounts receivable 699,918 Estimate of contractual cash flows not expected to be collected (1) 4,239 Estimate of contractual cash flows expected to be collected 695,679 (1) Includes interest payments not expected to be collected due to loan prepayments as well as principal and interest payments not expected to be collected due to customer default. The following table provides the unaudited pro forma information for the results of operations for the nine months ended September 30, 2023, as if the acquisition had occurred on January 1, 2023. The pro forma results combine the historical results of Inland into the Company’s Consolidated Statements of Operations, including the impact of certain acquisition accounting adjustments, which includes loan discount accretion, intangible assets amortization, deposit premium accretion, fixed assets amortization, and borrowing discount amortization. The pro forma results have been prepared for comparative purposes only and are not necessarily indicative of the results that would have been obtained had the acquisition actually occurred on January 1, 2023. No assumptions have been applied to the pro forma results of operations regarding possible revenue enhancements, provision for credit losses, expense efficiencies or asset dispositions. Recognized acquisition-related expenses and other adjustments related to the timing of expenses, are included in net income in the following table: For the Nine Months Ended September 30, 2023 Total revenues (net interest income and non-interest income) $ 310,507 Net income $ 82,424 Earnings per share—basic $ 1.92 Earnings per share—diluted $ 1.90 Revenues and earnings of the acquired company since the acquisition date have not been disclosed as it is not practicable as Inland was merged into the Company and separate financial information is not readily available.

Securities

Securities	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Securities	Note 4—Securities The following tables summarize the amortized cost and fair values of securities available-for-sale and securities held-to-maturity as of the dates shown and the corresponding amounts of gross unrealized gains and losses: September 30, 2024 Amortized Gross Gross Fair Available-for-sale U.S. Treasury Notes $ 42,740 $ 63 $ ( 291 ) $ 42,512 U.S. Government agencies 163,197 124 ( 12,782 ) 150,539 Obligations of states, municipalities, and 85,185 532 ( 3,434 ) 82,283 Residential mortgage-backed securities Agency 882,382 8,766 ( 78,361 ) 812,787 Non-agency 146,384 102 ( 18,156 ) 128,330 Commercial mortgage-backed securities Agency 258,543 891 ( 27,265 ) 232,169 Corporate securities 40,637 3 ( 2,563 ) 38,077 Asset-backed securities 16,351 7 ( 947 ) 15,411 Total $ 1,635,419 $ 10,488 $ ( 143,799 ) $ 1,502,108 September 30, 2024 Amortized Gross Gross Fair Held-to-maturity Obligations of states, municipalities, and $ 605 $ — $ ( 2 ) $ 603 Total $ 605 $ — $ ( 2 ) $ 603 December 31, 2023 Amortized Gross Gross Fair Available-for-sale U.S. Treasury Notes $ 116,398 $ 61 $ ( 1,025 ) $ 115,434 U.S. Government agencies 147,062 37 ( 16,404 ) 130,695 Obligations of states, municipalities, and 86,022 396 ( 4,143 ) 82,275 Residential mortgage-backed securities Agency 786,970 4,247 ( 95,414 ) 695,803 Non-agency 122,359 — ( 22,099 ) 100,260 Commercial mortgage-backed securities Agency 181,452 — ( 34,248 ) 147,204 Corporate securities 40,681 — ( 4,510 ) 36,171 Asset-backed securities 35,857 2 ( 1,221 ) 34,638 Total $ 1,516,801 $ 4,743 $ ( 179,064 ) $ 1,342,480 December 31, 2023 Amortized Gross Gross Fair Held-to-maturity Obligations of states, municipalities, and political $ 1,157 $ — $ ( 8 ) $ 1,149 Total $ 1,157 $ — $ ( 8 ) $ 1,149 The Company did no t classify securities as trading during the nine months ended September 30, 2024 or during 2023. Gross unrealized losses and fair values, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of September 30, 2024 and December 31, 2023, are summarized as follows: Less than 12 Months 12 Months or Longer Total September 30, 2024 Number of Fair Unrealized Fair Unrealized Fair Unrealized Available-for-sale U.S. Treasury Notes 6 $ — $ — $ 32,646 $ ( 291 ) $ 32,646 $ ( 291 ) U.S. Government agencies 17 — — 122,805 ( 12,782 ) 122,805 ( 12,782 ) Obligations of states, 53 2,677 ( 6 ) 52,003 ( 3,428 ) 54,680 ( 3,434 ) Residential mortgage-backed Agency 101 20,016 ( 146 ) 516,354 ( 78,215 ) 536,370 ( 78,361 ) Non-agency 20 18,406 ( 79 ) 96,546 ( 18,077 ) 114,952 ( 18,156 ) Commercial mortgage-backed Agency 49 23,077 ( 138 ) 147,021 ( 27,127 ) 170,098 ( 27,265 ) Corporate securities 20 1,455 ( 37 ) 35,619 ( 2,526 ) 37,074 ( 2,563 ) Asset-backed securities 1 — — 6,073 ( 947 ) 6,073 ( 947 ) Total 267 $ 65,631 $ ( 406 ) $ 1,009,067 $ ( 143,393 ) $ 1,074,698 $ ( 143,799 ) Held-to-maturity Obligations of states, 1 $ — $ — $ 603 $ ( 2 ) $ 603 $ ( 2 ) Total 1 $ — $ — $ 603 $ ( 2 ) $ 603 $ ( 2 ) Less than 12 Months 12 Months or Longer Total December 31, 2023 Number of Fair Unrealized Fair Unrealized Fair Unrealized Available-for-sale U.S. Treasury Notes 7 $ 5,018 $ ( 4 ) $ 31,843 $ ( 1,021 ) $ 36,861 $ ( 1,025 ) U.S. Government agencies 18 535 ( 9 ) 119,109 ( 16,395 ) 119,644 ( 16,404 ) Obligations of states, 61 12,267 ( 156 ) 49,617 ( 3,987 ) 61,884 ( 4,143 ) Residential mortgage-backed securities Agency 102 8,332 ( 49 ) 543,648 ( 95,365 ) 551,980 ( 95,414 ) Non-agency 20 636 — 99,624 ( 22,099 ) 100,260 ( 22,099 ) Commercial mortgage-backed Agency 48 6,765 ( 1,517 ) 140,439 ( 32,731 ) 147,204 ( 34,248 ) Corporate securities 21 — — 36,171 ( 4,510 ) 36,171 ( 4,510 ) Asset-backed securities 6 — — 25,653 ( 1,221 ) 25,653 ( 1,221 ) Total 283 $ 33,553 $ ( 1,735 ) $ 1,046,104 $ ( 177,329 ) $ 1,079,657 $ ( 179,064 ) Held-to-maturity Obligations of states, 2 $ — $ — $ 1,149 $ ( 8 ) $ 1,149 $ ( 8 ) Total 2 $ — $ — $ 1,149 $ ( 8 ) $ 1,149 $ ( 8 ) Certain securities have fair values less than amortized cost and, therefore, contain unrealized losses. The Company evaluated the securities which had unrealized losses for potential credit losses and determined there were none. There were 267 securities available-for-sale with unrealized losses at September 30, 2024 . There was one security held-to-maturity with unrealized losses at September 30, 2024. There was no allowance for credit losses for held-to-maturity debt securities at September 30, 2024 or December 31, 2023. The evaluation for potential credit losses is based upon factors such as the creditworthiness of the issuers/guarantors, the underlying collateral, if applicable, and the continuing payment performance of the securities. Management measures expected credit losses on held-to-maturity debt securities on a collective basis by major security types. The Company’s held-to-maturity portfolio contains municipal bonds that are typically rated by major rating agencies as ‘Aa’ or better. The Company uses industry historical credit loss information adjusted for current conditions to establish an allowance for credit losses. Accrued interest receivable on securities available-for-sale and held-to-maturity totaled $ 5.3 million and $ 4.5 million at September 30, 2024 and December 31, 2023, respectively, and are excluded from the estimate of credit losses. The Company anticipates full recovery of amortized cost with respect to these securities by maturity. The Company does not intend to sell these securities and it is not more likely than not that the Company will be required to sell them before recovery of their amortized cost basis, which may be at maturity. There were no proceeds from sales of securities available-for-sale, nor associated gains and losses on sales and calls of securities, for the three and nine months ended September 30, 2024 and 2023, respectively. Securities posted and pledged as collateral were $ 589.8 million and $ 464.5 million at September 30, 2024 and December 31, 2023. At September 30, 2024 and December 31, 2023 , of those pledged, the carrying amounts of securities pledged as collateral for public fund deposits were $ 521.8 million and $ 390.3 million, respectively, and for customer repurchase agreements of $ 40.4 million and $ 47.8 million, respectively. There were no securities pledged to the Federal Reserve Bank ("FRB") at September 30, 2024 or December 31, 2023. At September 30, 2024 and December 31, 2023 , there were no securities pledged for advances from the Federal Home Loan Bank. Other securities were pledged for letters of credit and for purposes required or permitted by law. At September 30, 2024 and December 31, 2023 , there were no holdings of securities of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10 % of stockholders’ equity. At September 30, 2024, the amortized cost and fair value of debt securities are shown by contractual maturity. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately. Amortized Fair Available-for-sale Due in one year or less $ 54,931 $ 54,139 Due from one to five years 92,138 88,523 Due from five to ten years 157,619 146,197 Due after ten years 43,422 39,963 Mortgage-backed securities 1,287,309 1,173,286 Total $ 1,635,419 $ 1,502,108 Held-to-maturity Due in one year or less $ 605 $ 603 Total $ 605 $ 603

Loan and Lease Receivables and

Loan and Lease Receivables and Allowance for Credit Losses	9 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Loan and Lease Receivables and Allowance for Credit Losses	Note 5—Loan and Lease Receivables and Allowance for Credit Losses Loan and Lease Receivables Outstanding loan and lease receivables as of the dates shown were categorized as follows: September 30, December 31, 2024 2023 Commercial real estate $ 2,359,354 $ 2,317,289 Residential real estate 709,612 718,733 Construction, land development, and other land 501,181 528,275 Commercial and industrial 2,586,890 2,444,405 Installment and other 3,912 3,138 Lease financing receivables 705,110 659,686 Total loans and leases 6,866,059 6,671,526 Net unamortized deferred fees and costs 7,118 6,600 Initial direct costs 6,269 6,180 Allowance for credit losses - loans and leases ( 98,860 ) ( 101,686 ) Net loans and leases $ 6,780,586 $ 6,582,620 September 30, December 31, 2024 2023 Lease financing receivables Net minimum lease payments $ 676,240 $ 644,507 Unguaranteed residual values 115,439 92,127 Unearned income ( 86,569 ) ( 76,948 ) Total lease financing receivables 705,110 659,686 Initial direct costs 6,269 6,180 Lease financial receivables before allowance for $ 711,379 $ 665,866 Total loans and leases consist of originated loans and leases, purchased credit deteriorated ("PCD") and acquired non-credit-deteriorated loans and leases. At September 30, 2024 and December 31, 2023, total loans and leases included the guaranteed amount of U.S. government guaranteed loans of $ 88.1 million a nd $ 93.3 million, respectively. At September 30, 2024 and December 31, 2023 , the discount on the unguaranteed portion of U.S. government guaranteed loans was $ 25.6 million and $ 26.2 million, respectively, which are included in total loans and leases. At September 30, 2024 and December 31, 2023 , installment and other loans included overdraft deposits of $ 618,000 and $ 754,000 , respectively, which were reclassified as loans. At September 30, 2024 and December 31, 2023 , loans and leases and loans held for sale pledged as security for borrowings were $ 2.0 billion and $ 2.2 billion, respectively. Accrued interest on loans and leases was $ 34.7 million and $ 38.9 million for the quarters ended September 30, 2024 and December 31, 2023, respectively, and is included in the accrued interest receivable and other assets line item on the Condensed Consolidated Statement of Financial Condition. The minimum annual lease payments for lease financing receivables as of September 30, 2024 are summarized as follows: Minimum Lease 2024 $ 56,032 2025 232,899 2026 183,571 2027 121,473 2028 63,854 Thereafter 18,411 Total $ 676,240 Originated loans and leases represent originations excluding loans initially acquired in a business combination. However, once an acquired loan reaches its maturity date, and is re-underwritten and renewed, it is internally classified as an originated loan. PCD loans are those acquired from a business combination with evidence of credit quality deterioration and are accounted for under ASC Topic 326. Acquired non-credit-deteriorated loans and leases represent loans and leases acquired with an outstanding balance from a business combination without more than insignificant evidence of credit quality deterioration and are accounted for under ASC Topic 310-20. The following tables summarize the balances for each respective loan and lease category as of September 30, 2024 and December 31, 2023: September 30, 2024 Originated Purchased Credit Deteriorated Acquired Total Commercial real estate $ 2,040,072 $ 95,240 $ 227,035 $ 2,362,347 Residential real estate 497,034 31,362 181,976 710,372 Construction, land development, and other land 415,636 4 84,172 499,812 Commercial and industrial 2,476,177 14,526 100,852 2,591,555 Installment and other 3,839 110 32 3,981 Lease financing receivables 711,233 — 146 711,379 Total loans and leases $ 6,143,991 $ 141,242 $ 594,213 $ 6,879,446 December 31, 2023 Originated Purchased Credit Deteriorated Acquired Total Commercial real estate $ 1,907,029 $ 137,807 $ 275,476 $ 2,320,312 Residential real estate 465,133 42,510 211,887 719,530 Construction, land development, and other land 415,162 25,331 86,344 526,837 Commercial and industrial 2,311,563 19,460 117,538 2,448,561 Installment and other 2,919 125 156 3,200 Lease financing receivables 665,239 — 627 665,866 Total loans and leases $ 5,767,045 $ 225,233 $ 692,028 $ 6,684,306 PCD loans — The unpaid principal balance and carrying amount of PCD loans excluding an allowance for credit losses - loans and leases o f $ 4.9 million and $ 10.0 milli on at September 30, 2024 and December 31, 2023, respectively, were as follows: September 30, 2024 December 31, 2023 Unpaid Carrying Unpaid Carrying Commercial real estate $ 138,363 $ 95,240 $ 185,007 $ 137,807 Residential real estate 75,970 31,362 88,036 42,510 Construction, land development, and other land 6,673 4 32,140 25,331 Commercial and industrial 19,757 14,526 21,870 19,460 Installment and other 774 110 789 125 Total purchased credit deteriorated loans $ 241,537 $ 141,242 $ 327,842 $ 225,233 The following table is a reconciliation of acquired Inland PCD loans between their purchase price and their par value at the time of the acquisition. Refer to Note 3—Acquisition of a Business for further information. Fair value of loans at acquisition $ 214,573 Allowance for credit losses - loans and leases, at acquisition 10,596 Non-credit discount/premium at acquisition 17,909 Par value of acquired PCD loans at acquisition $ 243,078 Acquired non-credit-deteriorated loans and leases — The unpaid principal balance and carrying value for acquired non-credit deteriorated loans and leases, excluding an allowance for credit losses o f $ 3.8 million and $ 4.7 mil lion at September 30, 2024 and December 31, 2023, respectively, were as follows: September 30, 2024 December 31, 2023 Unpaid Carrying Unpaid Carrying Commercial real estate $ 233,775 $ 227,035 $ 284,819 $ 275,476 Residential real estate 195,134 181,976 227,392 211,887 Construction, land development, and other land 84,663 84,172 87,143 86,344 Commercial and industrial 105,482 100,852 123,540 117,538 Installment and other 39 32 170 156 Lease financing receivables 146 146 628 627 Total acquired non-credit-deteriorated $ 619,239 $ 594,213 $ 723,692 $ 692,028 The Company hedges interest rates on certain loans using interest rate swaps through which the Company pays variable amounts and receives fixed amounts. Refer to Note 16—Derivative Instruments and Hedging Activities for additional discussion. Allowance for Credit Losses Loans and leases considered for inclusion in the allowance for credit losses include acquired non-credit-deteriorated loans and leases, purchased credit deteriorated loans, and originated loans and leases. The Bank’s credit risk rating methodology assigns risk ratings from 1 to 10, where a higher rating represents higher risk. Risk ratings for all loans of $ 1.0 million or more are reviewed annually. The risk rating categories are described by the following groupings: Pass —1‑4, risk levels of borrowers and guarantors that offer a minimal to an acceptable level of risk. Watch —5, credit exposure that presents higher than average risk and warrants greater than routine attention. Special Mention —6, potential weaknesses that if left uncorrected may result in deterioration of the repayment prospects. Substandard Accrual —7, weaknesses in cash flow and collateral coverage resulting in a distinct possibility of losses if not corrected. Used in limited cases, where the borrower is current on payments and an agreed plan for credit remediation. Substandard Non‑Accrual —8, well‑defined weakness or weaknesses in cash flow and collateral coverage resulting in the distinct possibility of losses if not corrected. Doubtful —9, weaknesses inherent in substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. Loss —10, is considered uncollectible and of such little value that its continuance as a realizable asset is not warranted. Revolving loans that are converted to term loans are treated as new originations and are presented by year of origination. Generally, existing term loans that are re-underwritten are reflected in the table in the year of renewal. The following tables summarize the risk rating categories of the loans and leases considered for inclusion in the allowance for credit losses - loans and leases calculation, as of September 30, 2024 and December 31, 2023: Term loans amortized cost by origination year Revolving Total September 30, 2024 2024 2023 2022 2021 2020 Prior Loans Loans Commercial Real Estate Pass $ 234,817 $ 240,042 $ 412,993 $ 465,184 $ 219,570 $ 469,298 $ 15,414 $ 2,057,318 Watch 2,389 39,813 37,636 41,665 31,925 66,246 — 219,674 Special Mention — — 4,330 6,084 2,548 27,329 — 40,291 Substandard — 1,590 3,747 8,612 836 30,279 — 45,064 Total $ 237,206 $ 281,445 $ 458,706 $ 521,545 $ 254,879 $ 593,152 $ 15,414 $ 2,362,347 Gross charge-offs for the nine months ended September 30, 2024 $ — $ 1,424 $ 295 $ 187 $ 718 $ 2,489 $ — $ 5,113 Residential Real Estate Pass $ 30,218 $ 48,700 $ 130,936 $ 117,898 $ 50,426 $ 233,043 $ 60,491 $ 671,712 Watch — — 2,609 595 13,835 11,166 1,082 29,287 Special Mention — — — — 3,732 — — 3,732 Substandard — 579 2,249 100 — 1,700 1,013 5,641 Total $ 30,218 $ 49,279 $ 135,794 $ 118,593 $ 67,993 $ 245,909 $ 62,586 $ 710,372 Gross charge-offs for the nine months ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — Construction, Land Development, Pass $ 18,408 $ 157,084 $ 143,776 $ 97,798 $ 37,236 $ 2,852 $ 345 $ 457,499 Watch — 4,765 4,387 15,645 — 3,081 — 27,878 Special Mention — 1,391 1,559 11,485 — — — 14,435 Substandard — — — — — — — — Total $ 18,408 $ 163,240 $ 149,722 $ 124,928 $ 37,236 $ 5,933 $ 345 $ 499,812 Gross charge-offs for the nine months ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — Commercial & Industrial Pass $ 281,416 $ 423,375 $ 451,891 $ 251,322 $ 89,779 $ 181,871 $ 518,089 $ 2,197,743 Watch 2,196 68,233 36,815 30,408 1,842 26,717 81,386 247,597 Special Mention — 319 10,334 25,073 3,546 11,001 23,931 74,204 Substandard $ 749 $ 7,584 $ 26,625 $ 8,888 $ 3,868 $ 15,547 $ 8,750 72,011 Total $ 284,361 $ 499,511 $ 525,665 $ 315,691 $ 99,035 $ 235,136 $ 632,156 $ 2,591,555 Gross charge-offs for the nine months ended September 30, 2024 $ — $ 1,534 $ 4,377 $ 1,538 $ 1,264 $ 11,384 $ — $ 20,097 Installment and Other Pass $ 670 $ 342 $ 89 $ 39 $ 4 $ 388 $ 2,425 $ 3,957 Watch — — — — — — — — Special Mention — — — — — — 1 1 Substandard — — — 23 — — — 23 Total $ 670 $ 342 $ 89 $ 62 $ 4 $ 388 $ 2,426 $ 3,981 Gross charge-offs for the nine months ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — Lease Financing Receivables Pass $ 222,254 $ 259,993 $ 148,903 $ 59,646 $ 16,351 $ 483 $ — $ 707,630 Watch 295 734 48 — 8 — — 1,085 Special Mention — — — — 160 — — 160 Substandard — 613 1,099 791 — 1 — 2,504 Total $ 222,549 $ 261,340 $ 150,050 $ 60,437 $ 16,519 $ 484 $ — $ 711,379 Gross charge-offs for the nine months ended September 30, 2024 $ — $ 434 $ 560 $ 463 $ 58 $ 34 $ — $ 1,549 Total Loans and Leases Pass $ 787,783 $ 1,129,536 $ 1,288,588 $ 991,887 $ 413,366 $ 887,935 $ 596,764 $ 6,095,859 Watch 4,880 113,545 81,495 88,313 47,610 107,210 82,468 525,521 Special Mention — 1,710 16,223 42,642 9,986 38,330 23,932 132,823 Substandard 749 10,366 33,720 18,414 4,704 47,527 9,763 125,243 Total $ 793,412 $ 1,255,157 $ 1,420,026 $ 1,141,256 $ 475,666 $ 1,081,002 $ 712,927 $ 6,879,446 Gross charge-offs for the nine months ended September 30, 2024 $ — $ 3,392 $ 5,232 $ 2,188 $ 2,040 $ 13,907 $ — $ 26,759 Term loans amortized cost by origination year Revolving Total December 31, 2023 2023 2022 2021 2020 2019 Prior Loans Loans Commercial Real Estate Pass $ 247,856 $ 452,127 $ 516,624 $ 229,053 $ 143,283 $ 388,872 $ 28,360 $ 2,006,175 Watch 12,501 22,094 26,408 46,713 20,364 68,003 — 196,083 Special Mention — 799 10,752 2,618 12,751 25,790 — 52,710 Substandard — 2,888 5,841 1,771 7,483 46,532 829 65,344 Total $ 260,357 $ 477,908 $ 559,625 $ 280,155 $ 183,881 $ 529,197 $ 29,189 $ 2,320,312 Gross charge-offs, year ended $ — $ 193 $ 60 $ 1,511 $ 4,054 $ 3,911 $ — $ 9,729 Residential Real Estate Pass $ 55,178 $ 135,477 $ 104,005 $ 54,651 $ 37,806 $ 225,593 $ 57,865 $ 670,575 Watch — 4,811 — 17,417 7,167 8,708 1,597 39,700 Special Mention — — — 3,594 127 1 413 4,135 Substandard — — 107 189 349 3,523 952 5,120 Total $ 55,178 $ 140,288 $ 104,112 $ 75,851 $ 45,449 $ 237,825 $ 60,827 $ 719,530 Gross charge-offs, year ended $ — $ — $ — $ — $ — $ 21 $ — $ 21 Construction, Land Development, Pass $ 82,449 $ 145,174 $ 184,544 $ 35,466 $ 9,772 $ 1,429 $ 174 $ 459,008 Watch 1,392 13,990 21,313 18,716 3,125 — — 58,536 Special Mention — — 9,279 — — — — 9,279 Substandard — — — — — 14 — 14 Total $ 83,841 $ 159,164 $ 215,136 $ 54,182 $ 12,897 $ 1,443 $ 174 $ 526,837 Gross charge-offs, year ended $ — $ — $ — $ — $ — $ — $ — $ — Commercial & Industrial Pass $ 475,720 $ 514,902 $ 288,392 $ 109,430 $ 73,059 $ 147,168 $ 524,348 $ 2,133,019 Watch 41,027 33,080 50,407 1,385 6,951 18,180 39,531 190,561 Special Mention — 6,164 10,595 2,631 1,112 6,643 36,354 63,499 Substandard — 7,332 6,067 6,431 10,116 18,381 13,155 61,482 Total $ 516,747 $ 561,478 $ 355,461 $ 119,877 $ 91,238 $ 190,372 $ 613,388 $ 2,448,561 Gross charge-offs, year ended $ 1,518 $ 1,938 $ 5,372 $ 4,451 $ 1,087 $ 1,045 $ — $ 15,411 Installment and Other Pass $ 564 $ 132 $ 79 $ 133 $ 28 $ 424 $ 1,814 $ 3,174 Watch — — 25 — — 1 — 26 Special Mention — — — — — — — — Substandard — — — — — — — — Total $ 564 $ 132 $ 104 $ 133 $ 28 $ 425 $ 1,814 $ 3,200 Gross charge-offs, year ended $ — $ — $ — $ — $ — $ 3 $ — $ 3 Lease Financing Receivables Pass $ 327,099 $ 207,640 $ 93,242 $ 29,343 $ 5,443 $ 856 $ — $ 663,623 Watch — 67 1,008 16 — — — 1,091 Special Mention — — — 179 101 36 — 316 Substandard 259 138 384 55 — — — 836 Total $ 327,358 $ 207,845 $ 94,634 $ 29,593 $ 5,544 $ 892 $ — $ 665,866 Gross charge-offs, year ended $ 734 $ 886 $ 549 $ 139 $ 75 $ 54 $ — $ 2,437 Total Loans and Leases Pass $ 1,188,866 $ 1,455,452 $ 1,186,886 $ 458,076 $ 269,391 $ 764,342 $ 612,561 $ 5,935,574 Watch 54,920 74,042 99,161 84,247 37,607 94,892 41,128 485,997 Special Mention — 6,963 30,626 9,022 14,091 32,470 36,767 129,939 Substandard 259 10,358 12,399 8,446 17,948 68,450 14,936 132,796 Total $ 1,244,045 $ 1,546,815 $ 1,329,072 $ 559,791 $ 339,037 $ 960,154 $ 705,392 $ 6,684,306 Gross charge-offs, year ended $ 2,252 $ 3,017 $ 5,981 $ 6,101 $ 5,216 $ 5,034 $ — $ 27,601 At September 30, 2024 and at December 31, 2023 there were no loans or leases which were risk rated Doubtful or Loss. As of September 30, 2024 and December 31, 2023 , respectively, there were $ 78.4 million and $ 52.2 million of term loans that had been converted from revolving loans. The following tables summarize contractual delinquency information of the loans and leases considered for inclusion in the allowance for credit losses - loans and leases calculation at September 30, 2024 and December 31, 2023: September 30, 2024 2024 2023 2022 2021 2020 Prior Revolving Total Commercial Real Estate Current $ 237,081 $ 279,855 $ 455,422 $ 517,237 $ 254,618 $ 568,823 $ 15,414 $ 2,328,450 30-59 Days Past Due 125 — — — — 2,920 — 3,045 60-89 Days Past Due — — 636 — — 914 — 1,550 Greater than 90 Accruing — — — — — — — — Non-accrual — 1,590 2,648 4,308 261 20,495 — 29,302 Total Past Due 125 1,590 3,284 4,308 261 24,329 — 33,897 Total $ 237,206 $ 281,445 $ 458,706 $ 521,545 $ 254,879 $ 593,152 $ 15,414 $ 2,362,347 Residential Real Estate Current $ 30,218 $ 49,279 $ 133,545 $ 118,493 $ 67,993 $ 244,299 $ 61,218 $ 705,045 30-59 Days Past Due — — — — — 44 355 399 60-89 Days Past Due — — — — — — — — Greater than 90 Accruing — — — — — — — — Non-accrual — — 2,249 100 — 1,566 1,013 4,928 Total Past Due — — 2,249 100 — 1,610 1,368 5,327 Total $ 30,218 $ 49,279 $ 135,794 $ 118,593 $ 67,993 $ 245,909 $ 62,586 $ 710,372 Construction, Land Development, Current $ 18,408 $ 163,240 $ 149,722 $ 124,928 $ 37,236 $ 5,933 $ 345 $ 499,812 30-59 Days Past Due — — — — — — — — 60-89 Days Past Due — — — — — — — — Greater than 90 Accruing — — — — — — — — Non-accrual — — — — — — — — Total Past Due — — — — — — — — Total $ 18,408 $ 163,240 $ 149,722 $ 124,928 $ 37,236 $ 5,933 $ 345 $ 499,812 Commercial & Industrial Current $ 283,611 $ 491,992 $ 512,755 $ 313,279 $ 95,712 $ 219,696 $ 628,404 $ 2,545,449 30-59 Days Past Due — — 158 — — — 359 517 60-89 Days Past Due 658 370 1,753 256 628 7,689 479 11,833 Greater than 90 Accruing — — — — — — — — Non-accrual 92 7,149 10,999 2,156 2,695 7,751 2,914 33,756 Total Past Due 750 7,519 12,910 2,412 3,323 15,440 3,752 46,106 Total $ 284,361 $ 499,511 $ 525,665 $ 315,691 $ 99,035 $ 235,136 $ 632,156 $ 2,591,555 Installment and Other Current $ 670 $ 342 $ 89 $ 39 $ 4 $ 388 $ 2,426 $ 3,958 30-59 Days Past Due — — — — — — — — 60-89 Days Past Due — — — — — — — — Greater than 90 Accruing — — — — — — — — Non-accrual — — — 23 — — — 23 Total Past Due — — — 23 — — — 23 Total $ 670 $ 342 $ 89 $ 62 $ 4 $ 388 $ 2,426 $ 3,981 Lease Financing Receivables Current $ 220,256 $ 257,011 $ 146,932 $ 58,597 $ 16,238 $ 478 $ — $ 699,512 30-59 Days Past Due 1,724 2,118 889 341 120 5 — 5,197 60-89 Days Past Due 569 1,598 1,130 714 161 — — 4,172 Greater than 90 Accruing — — — — — — — — Non-accrual — 613 1,099 785 — 1 — 2,498 Total Past Due 2,293 4,329 3,118 1,840 281 6 — 11,867 Total $ 222,549 $ 261,340 $ 150,050 $ 60,437 $ 16,519 $ 484 $ — $ 711,379 Total Loans and Leases Current $ 790,244 $ 1,241,719 $ 1,398,465 $ 1,132,573 $ 471,801 $ 1,039,617 $ 707,807 $ 6,782,226 30-59 Days Past Due 1,849 2,118 1,047 341 120 2,969 714 9,158 60-89 Days Past Due 1,227 1,968 3,519 970 789 8,603 479 17,555 Greater than 90 Accruing — — — — — — — — Non-accrual 92 9,352 16,995 7,372 2,956 29,813 3,927 70,507 Total Past Due 3,168 13,438 21,561 8,683 3,865 41,385 5,120 97,220 Total $ 793,412 $ 1,255,157 $ 1,420,026 $ 1,141,256 $ 475,666 $ 1,081,002 $ 712,927 $ 6,879,446 Total non-accrual loans without an allowance included $ 6.5 million of commercial real estate loans, $ 3.0 million of residential real estate, and $ 3.3 million of commercial and industrial loans as of September 30, 2024 . The Company recognized $ 514,000 and $ 1.8 million of interest income on non-accrual loans and leases for the three and nine months ended September 30, 2024, respectively. December 31, 2023 2023 2022 2021 2020 2019 Prior Revolving Total Commercial Real Estate Current $ 259,998 $ 474,878 $ 558,236 $ 279,098 $ 178,729 $ 501,620 $ 29,189 $ 2,281,748 30-59 Days Past Due 359 648 638 74 3,176 484 — 5,379 60-89 Days Past Due — 826 — 286 — 1,208 — 2,320 Greater than 90 Accruing — — — — — — — — Non-accrual — 1,556 751 697 1,976 25,885 — 30,865 Total Past Due 359 3,030 1,389 1,057 5,152 27,577 — 38,564 Total $ 260,357 $ 477,908 $ 559,625 $ 280,155 $ 183,881 $ 529,197 $ 29,189 $ 2,320,312 Residential Real Estate Current $ 55,178 $ 136,448 $ 102,973 $ 75,125 $ 45,050 $ 230,102 $ 59,476 $ 704,352 30-59 Days Past Due — 3,840 1,032 537 29 4,122 399 9,959 60-89 Days Past Due — — — — 21 127 — 148 Greater than 90 Accruing — — — — — — — — Non-accrual — — 107 189 349 3,474 952 5,071 Total Past Due — 3,840 1,139 726 399 7,723 1,351 15,178 Total $ 55,178 $ 140,288 $ 104,112 $ 75,851 $ 45,449 $ 237,825 $ 60,827 $ 719,530 Construction, Land Development, Current $ 83,841 $ 156,815 $ 215,136 $ 54,182 $ 12,897 $ 1,443 $ 174 $ 524,488 30-59 Days Past Due — — — — — — — — 60-89 Days Past Due — 2,349 — — — — — 2,349 Greater than 90 Accruing — — — — — — — — Non-accrual — — — — — — — — Total Past Due — 2,349 — — — — — 2,349 Total $ 83,841 $ 159,164 $ 215,136 $ 54,182 $ 12,897 $ 1,443 $ 174 $ 526,837 Commercial & Industrial Current $ 516,747 $ 552,251 $ 351,534 $ 114,859 $ 83,780 $ 177,239 $ 611,766 $ 2,408,176 30-59 Days Past Due — 1,545 1,099 238 2,513 400 455 6,250 60-89 Days Past Due — 1,505 — 234 3,416 1,139 496 6,790 Greater than 90 Accruing — — — — — — — — Non-accrual — 6,177 2,828 4,546 1,529 11,594 671 27,345 Total Past Due — 9,227 3,927 5,018 7,458 13,133 1,622 40,385 Total $ 516,747 $ 561,478 $ 355,461 $ 119,877 $ 91,238 $ 190,372 $ 613,388 $ 2,448,561 Installment and Other Current $ 564 $ 132 $ 104 $ 133 $ 28 $ 425 $ 1,814 $ 3,200 30-59 Days Past Due — — — — — — — — 60-89 Days Past Due — — — — — — — — Greater than 90 Accruing — — — — — — — — Non-accrual — — — — — — — — Total Past Due — — — — — — — — Total $ 564 $ 132 $ 104 $ 133 $ 28 $ 425 $ 1,814 $ 3,200 Lease Financing Receivables Current $ 325,833 $ 206,800 $ 93,795 $ 29,292 $ 5,537 $ 889 $ — $ 662,146 30-59 Days Past Due 726 426 153 38 4 2 — 1,349 60-89 Days Past Due 540 481 302 218 3 1 — 1,545 Greater than 90 Accruing — — — — — — — — Non-accrual 259 138 384 45 — — — 826 Total Past Due 1,525 1,045 839 301 7 3 — 3,720 Total $ 327,358 $ 207,845 $ 94,634 $ 29,593 $ 5,544 $ 892 $ — $ 665,866 Total Loans and Leases Current $ 1,242,161 $ 1,527,324 $ 1,321,778 $ 552,689 $ 326,021 $ 911,718 $ 702,419 $ 6,584,110 30-59 Days Past Due 1,085 6,459 2,922 887 5,722 5,008 854 22,937 60-89 Days Past Due 540 5,161 302 738 3,440 2,475 496 13,152 Greater than 90 Accruing — — — — — — — — Non-accrual 259 7,871 4,070 5,477 3,854 40,953 1,623 64,107 Total Past Due 1,884 19,491 7,294 7,102 13,016 48,436 2,973 100,196 Total $ 1,244,045 $ 1,546,815 $ 1,329,072 $ 559,791 $ 339,037 $ 960,154 $ 705,392 $ 6,684,306 Total non-accrual loans without an allo wance included $ 1.6 million of commercial real estate loans, $ 3.6 million of residential real e state loans , and $ 2.3 million of commercial and industrial loans , as of December 31, 2023. The Company recognized $ 770,000 and $ 2.8 million of interest income on non-accrual loans and leases for the three and nine months ended September 30, 2023, respectively. The following table summarize the balance and activity within the allowance for credit losses - loans and leases, the components of the allowance for credit losses - loans and leases by loans and leases individually and collectively evaluated for impairment, and corresponding loan and lease balances by type for the three and nine months ended September 30, 2024 are as follows: September 30, 2024 Commercial Residential Construction, Commercial Installment Lease Total Allowance for credit losses - Three months ended Beginning balance $ 27,852 $ 3,023 $ 2,723 $ 57,584 $ 30 $ 8,518 $ 99,730 Provision/(recapture) 1,210 ( 121 ) ( 115 ) 6,286 16 321 7,597 Charge-offs ( 1,615 ) — — ( 6,948 ) — ( 496 ) ( 9,059 ) Recoveries 193 3 — 313 — 83 592 Ending balance $ 27,640 $ 2,905 $ 2,608 $ 57,235 $ 46 $ 8,426 $ 98,860 Nine months ended Beginning balance $ 33,237 $ 3,495 $ 2,906 $ 53,782 $ 36 $ 8,230 $ 101,686 Provision/(recapture) ( 1,592 ) ( 595 ) ( 298 ) 22,683 10 1,158 21,366 Charge-offs ( 5,113 ) — — ( 20,097 ) — ( 1,549 ) ( 26,759 ) Recoveries 1,108 5 — 867 — 587 2,567 Ending balance $ 27,640 $ 2,905 $ 2,608 $ 57,235 $ 46 $ 8,426 $ 98,860 Ending balance: Individually evaluated $ 6,547 $ 82 $ — $ 18,364 $ — $ — $ 24,993 Collectively evaluated 21,093 2,823 2,608 38,871 46 8,426 73,867 Total allowance for credit $ 27,640 $ 2,905 $ 2,608 $ 57,235 $ 46 $ 8,426 $ 98,860 Loans and leases Individually evaluated for $ 34,260 $ 3,591 $ — $ 50,627 $ — $ — $ 88,478 Collectively evaluated for 2,328,087 706,781 499,812 2,540,928 3,981 711,379 6,790,968 Total loans and leases $ 2,362,347 $ 710,372 $ 499,812 $ 2,591,555 $ 3,981 $ 711,379 $ 6,879,446 The following table summarize the balance and activity within the allowance for credit losses - loans and leases, the components of the allowance for credit losses - loans and leases by loans and leases individually and collectively evaluated for impairment, loans acquired with deteriorated credit quality, and corresponding loan and lease balances by type for the three and nine months ended September 30, 2023: September 30, 2023 Commercial Residential Construction, Commercial Installment Lease Total Allowance for credit losses - Three months ended Beginning balance $ 26,377 $ 2,544 $ 1,935 $ 53,640 $ 43 $ 8,126 $ 92,665 Adjustment for acquired PCD 8,230 660 97 1,609 — — 10,596 Provision 1,614 941 1,168 3,329 4 809 7,865 Charge-offs ( 1,360 ) ( 12 ) — ( 4,200 ) ( 3 ) ( 604 ) ( 6,179 ) Recoveries 124 18 — 460 — 147 749 Ending balance $ 34,985 $ 4,151 $ 3,200 $ 54,838 $ 44 $ 8,478 $ 105,696 Nine months ended Beginning balance $ 26,061 $ 3,140 $ 3,134 $ 41,889 $ 24 $ 7,676 $ 81,924 Adjustment for acquired PCD 8,230 660 97 1,609 — — 10,596 Provision/(recapture) 4,854 290 ( 31 ) 17,293 19 1,619 24,044 Charge-offs ( 5,271 ) ( 21 ) — ( 8,087 ) ( 3 ) ( 1,370 ) ( 14,752 ) Recoveries 1,111 82 — 2,134 4 553 3,884 Ending balance $ 34,985 $ 4,151 $ 3,200 $ 54,838 $ 44 $ 8,478 $ 105,696 Ending balance: Individually evaluated $ 13,199 $ — $ — $ 15,135 $ — $ — $ 28,334 Collectively evaluated 21,786 4,151 3,200 39,703 44 8,478 77,362 Total allowance for credit $ 34,985 $ 4,151 $ 3,200 $ 54,838 $ 44 $ 8,478 $ 105,696 Loans and leases ending Individually evaluated for $ 67,596 $ — $ — $ 48,814 $ — $ — $ 116,410 Collectively evaluated for 2,221,164 722,032 523,008 2,385,511 3,246 641,932 6,496,893 Total loans and leases $ 2,288,760 $ 722,032 $ 523,008 $ 2,434,325 $ 3,246 $ 641,932 $ 6,613,303 The Company decreased the allowance for credit losses - loans and leases by $ 870,000 and $ 2.8 million for the three and nine months ended September 30, 2024 , respectively. The Company increased the allowance for credit losses - loans and leases by $ 13.0 million and $ 23.8 million for the three and nine months ended September 30, 2023 , respectively. In 2023, a $ 10.6 million adjustment was made to the allowance for credit losses to account for acquired PCD loans, as a result of the Inland acquisition. For loans individually evaluated for impairment, the Company increased the allowance for credit losses - loans and leases by $ 1.4 million and decreased it by $ 2.2 million for the three and nine months ended September 30, 2024 , and increased the allowance for credit losses for loans individually evaluated by $ 2.4 million and $ 13.0 million for the three and nine months ended September 30, 2023, respectively. For loans and leases collectively evaluated for impairment, the allowance for credit losses decreased by $ 2.3 million and $ 578,000 for the three and nine months ended September 30, 2024 , respectively. For loans and leases collectively evaluated for impairment, the allowance for credit losses increased by $ 10.7 million and $ 10.8 million for the three and nine months ended September 30, 2023, respectively. The decrease in the allowance for credit losses - loans and leases was mainly due to charge-offs of individually assessed loans previously reserved for and improvement in macro-economic factors impacting the collectively assessed portfolio. T he following table presents loans to borrowers experiencing financial difficulty and with modified terms for the three and nine months ended September 30, 2024: Three Months Ended Term Modification Total Modified by Class % of Class of Loans and Leases Commercial real estate $ 3,877 $ 3,877 0.2 % Commercial and industrial 245 245 0.0 % Total loans and leases $ 4,122 $ 4,122 0.1 % Nine Months Ended Term Modification Total Modified by Class % of Class of Loans and Leases Commercial real estate $ 5,320 $ 5,320 0.2 % Commercial and industrial 2,298 2,298 0.1 % Total loans and leases $ 7,618 $ 7,618 0.1 % For the three months ended September 30, 2024, t he financial effect of the term modifications presented above reflects a five months weighted average extension of maturity date. For the nine months ended September 30, 2024, the financial effect of the term modifications presented above reflects a four months weighted average extension of maturity date. The following table presents the amortized cost basis of loans that were both experiencing financial difficulty and modified during the three and nine months ended September 30, 2023, by type of modification: Three Months Ended Payment Delay Term Modification Combination Term Modification and Interest Rate Reduction Total Modified by Class % of Class of Loans and Leases Commercial and industrial $ — $ 25,136 $ — $ 25,136 1.1 % Total modified loans $ — $ 25,136 $ — $ 25,136 0.4 % Nine Months Ended Payment Delay Term Modification Combination Term Modification and Interest Rate Reduction Total Modified by Class % of Class of Loans and Leases Commercial and industrial $ 383 $ 62,394 $ 374 $ 63,151 2.6 % Total modified loans $ 383 $ 62,394 $ 374 $ 63,151 1.0 % Loans reflected as having a payment delay included a general adjustment in loan terms similar to those of pass-rated credits. Loans having term modifications included extension of term as a result of a new borrower structure and other miscellaneous term adjustments. Loans having a combination of term modification and interest rate reduction reflect a longer amortization period and a reduced weighted average contractual rate from 8.85 % to 7.01 %. As of September 30, 2024 , the amortized cost of commercial real estate loans that had a payment default and were modified in the twelve months prior to default was $ 2.8 million, which represented 0.12 % of outstanding commercial real estate loans. Additionally, the amortized cost of commercial and industrial loans that had a payment default and were modified in the twelve months prior to default was $ 8.2 million, which represented 0.32 % of outstanding commercial and industrial loans at September 30, 2024. As of December 31, 2023, the amortized cost of commercial and industrial loans that had a payment default and were modified in the twelve months prior to default was $ 406,000 , which represented 0.02 % of outstanding commercial and industrial loans. Modified loans are either collectively assessed based on portfolio risk segment and risk rating or individually assessed for loans exceeding $ 500,000 . Upon the Company’s determination that a modified loan has subsequently been deemed uncollectible, the loan (or a portion of the loan) is written off. Therefore, the amortized cost basis of the loan is reduced by the uncollectible amount and the allowance for credit losses is adjusted by the same amount. There was $ 1.5 million in outstanding commitments on modified loans as of September 30, 2024. There was $ 9.1 million in outstanding commitments on modified loans at December 31, 2023. The following table presents the amortized cost basis of collateral-dependent loans and leases, which are individually evaluated to determine expected credit losses as of September 30, 2024 and December 31, 2023: September 30, 2024 Commercial Construction Non-owner Occupied Commercial Owner-Occupied Commercial Multi-Family Single Family Residence (1st Lien) Single Family Residence (2nd Lien) Business Assets Other Assets Total Commercial real estate $ — $ 6,775 $ 27,485 $ — $ — $ — $ — $ — $ 34,260 Residential real estate — — — 2,221 790 579 — — 3,590 Commercial and industrial — — — — — — 38,578 1,661 40,239 Total $ — $ 6,775 $ 27,485 $ 2,221 $ 790 $ 579 $ 38,578 $ 1,661 $ 78,089 December 31, 2023 Commercial Construction Non-owner Occupied Commercial Owner-Occupied Commercial Multi-Family Single Family Residence (1st Lien) Single Family Residence (2nd Lien) Business Assets Other Assets Total Commercial real estate $ — $ 28,767 $ 35,572 $ — $ — $ — $ — $ — $ 64,339 Residential real estate — — — 2,793 800 — — — 3,593 Construction, land 813 — — — — — — — 813 Commercial and industrial — — — — — — 44,749 — 44,749 Total $ 813 $ 28,767 $ 35,572 $ 2,793 $ 800 $ — $ 44,749 $ — $ 113,494 The following table presents the change in the balance of the allowance for credit losses - unfunded commitments as of September 30, 2024 and 2023: For the Three Months Ended For the Nine Months Ended September 30, September 30, 2024 2023 2024 2023 Beginning balance $ 2,555 $ 3,639 $ 3,636 $ 4,203 Provision/(recapture) for unfunded commitments ( 122 ) 937 ( 1,203 ) 373 Ending balance $ 2,433 $ 4,576 $ 2,433 $ 4,576

Servicing Assets

Servicing Assets	9 Months Ended
	Sep. 30, 2024
Transfers and Servicing [Abstract]
Servicing Assets	Note 6—Servicing Assets Activity for servicing assets and the related changes in fair value for the three and nine months ended September 30, 2024 and 2023 was as follows: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Beginning balance $ 19,617 $ 21,715 $ 19,844 $ 19,172 Additions, net 1,511 1,674 4,455 4,426 Changes in fair value ( 2,183 ) ( 3,646 ) ( 5,354 ) ( 3,855 ) Ending balance $ 18,945 $ 19,743 $ 18,945 $ 19,743 Loans serviced for others are not included in the Condensed Consolidated Statements of Financial Condition. The unpaid principal balances of these loans serviced for others as of September 30, 2024 and December 31, 2023 were as follows: September 30, December 31, 2024 2023 Loan portfolios serviced for: SBA guaranteed loans $ 1,514,175 $ 1,530,401 USDA guaranteed loans 188,337 197,942 Total $ 1,702,512 $ 1,728,343 Loan servicing revenue totaled $ 3.2 mill ion and $ 3.4 million for the three months ended September 30, 2024 and 2023 , respectively. Loan servicing revenue totaled $ 9.8 million and $ 10.1 million for the nine months ended September 30, 2024 and 2023, respectively. Loan servicing asset revaluation, which represents the changes in fair value of servicing assets, resulted in a downward valuation adjustment of $ 2.2 million and $ 3.6 million for the three months ended September 30, 2024 and 2023 , respectively. Loan servicing asset revaluation resulted in a downward valuation adjustment of $ 5.4 million and $ 3.9 million for nine months ended September 30, 2024 and 2023, respectively. The fair value of servicing rights is highly sensitive to changes in underlying assumptions. Changes in secondary market premiums and prepayment speed assumptions have the most significant impact on the fair value of servicing rights. Generally, as interest rates rise on variable rate loans, loan prepayments increase due to an increase in refinance activity, which may result in a decrease in the fair value of servicing assets. Measurement of fair value is limited to the conditions existing and the assumptions used as of a particular point in time, and those assumptions may change over time. Refer to Note 15—Fair Value Measurement for further details.

Other Real Estate Owned

Other Real Estate Owned	9 Months Ended
	Sep. 30, 2024
Real Estate [Abstract]
Other Real Estate Owned	Note 7—Other Real Estate Owned Other real estate owned ("OREO") is included in accrued interest receivable and other assets in the Company's Condensed Consolidated Statements of Financial Condition. The following table presents the change in OREO for the three and nine months ended September 30, 2024 and 2023: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Beginning balance $ 780 $ 2,265 $ 1,200 $ 4,717 Net additions to OREO 30 72 35 571 Proceeds from sales of OREO ( 260 ) ( 614 ) ( 740 ) ( 3,173 ) Gains (losses) on sales of OREO ( 18 ) ( 39 ) 37 ( 88 ) Valuation adjustments — ( 13 ) — ( 356 ) Ending balance $ 532 $ 1,671 $ 532 $ 1,671 At September 30, 2024, and December 31, 2023, the balance of real estate owned did not include any foreclosed residential real estate properties recorded as a result of obtaining physical possession of the property. At September 30, 2024 , and December 31, 2023, there was $ 818,000 and $ 27,000 of consumer mortgage loans secured by residential real estate properties in foreclosure, respectively. There were no internally financed sales of OREO for the three and nine months ended September 30, 2024 and 2023 .

Leases

Leases	9 Months Ended
	Sep. 30, 2024
Leases [Abstract]
Leases	Note 8—Leases The Company enters into leases in the normal course of business primarily for its banking facilities and branches. The Company’s operating leases have varying maturity dates through year end 2036 , some of which include renewal or termination options to extend the lease. In addition, the Company leases or subleases real estate to third parties. The Company includes lease extension and termination options in the lease term if, after considering relevant economic factors, it is reasonably certain the Company will exercise the option. In addition, the Company has elected to account for any non-lease components in its real estate leases as part of the associated lease component. The Company has also elected not to recognize leases with original lease terms of 12 months or less ("short-term leases") on the Company’s Condensed Consolidated Statements of Financial Condition. Leases are classified at the lease commencement date. Lease expense for operating leases and short-term leases is recognized on a straight-line basis over the lease term. Right-of-use assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Right-of-use assets and lease liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. The following table summarizes the amount and balance sheet line item for our operating lease right-of-use asset and liability as of the periods indicated: Balance Sheet Line Item September 30, 2024 December 31, 2023 Operating lease right-of-use asset Accrued interest receivable and other assets $ 10,070 $ 12,474 Operating lease liability Accrued interest payable and other liabilities 11,361 14,268 The Company uses its incremental borrowing rate at lease commencement to calculate the present value of lease payments when the rate implicit in a lease is not known. The Company’s incremental borrowing rate is based on the Federal Home Loan Bank regular advance rate, adjusted for the lease term and other factors. At September 30, 2024, the weighted average discount rate of operating leases wa s 3.10 % and the weighted average remaining life of operating leases was 5.1 years, compared to 2.90 % and 6.1 years as of Dece mber 31, 2023. The following table presents components of total lease costs included as a component of occupancy expense on the Condensed Consolidated Statements of Operations for the following periods: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Operating lease cost $ 666 $ 770 $ 2,051 $ 2,014 Short-term lease cost 120 127 386 295 Variable lease cost 423 470 1,257 1,239 Less: Sublease income ( 131 ) ( 160 ) ( 391 ) ( 475 ) Total lease cost, net $ 1,078 $ 1,207 $ 3,303 $ 3,073 Operating cash flows paid for operating lease amounts included in the measure of lease liabilities were $ 950,000 and $ 1.4 million for the three months ended September 30, 2024 and 2023 , respectively. For the quarter ended September 30, 2023, operating cash flows paid included early termination payments of $ 471,000 for two of the Company’s previously closed branch facilities, resulting in a gain of $ 838,000 . Operating cash flows paid for operating lease amounts included in the measure of lease liabilities were $ 3.1 million for each of the nine months ended September 30, 2024 and 2023, respectively. The Company recorded $ 687,000 and $ 3.8 million of right-of-use lease assets in exchange for operating lease liabilities for the three months ended September 30, 2024 and 2023 , respectively. The Company recorded $ 1.8 million and $ 4.8 million of right-of-use lease assets in exchange for operating lease liabilities for the nine months ended September 30, 2024 and 2023 , respectively. During the three and nine months ended September 30, 2023, the additions recorded to right-of-use assets and operating lease liabilities included $ 3.8 million related to the acquisition of Inland. During the nine months ended September 30, 2024 , the Company recorded $ 194,000 of impairment related to two branch facilities that were closed in the of the second quarter of 2024. There were no impairment charges taken during the three months ended September 30, 2024. Impairments were recognized on operating lease right-of-use assets and are reflected in other non-interest expense. D uring the three and nine months ended September 30, 2023, the Company recorded $ 394,000 of impairment related to an acquired non-branch facility lease. Impairments were recognized on leasehold improvements and are reflected in other non-interest expense. The future minimum lease payments for operating leases, subsequent to September 30, 2024, as recorded on the Condensed Consolidated Statements of Financial Condition, are summarized as follows: Operating Lease 2024 $ 945 2025 3,395 2026 2,484 2027 1,576 2028 1,254 Thereafter 2,927 Total undiscounted lease payments 12,581 Less: Imputed interest ( 1,220 ) Net lease liabilities $ 11,361 The total amount of minimum rentals to be recei ved in the future on these subleases is approximately $ 974,000 , and the leases have contractual lives extending through 2028 . In addition to the above required lease payments, the Company has contractual obligations related primarily to information technology c ontracts and other maintenance contracts.

Goodwill, Core Deposit Intangib

Goodwill, Core Deposit Intangible and Other Intangible Assets	9 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Core Deposit Intangible and Other Intangible Assets	Note 9—Goodwill, Core Deposit Intangible and Other Intangible Assets The following tables summarize the changes in the Company’s goodwill, core deposit intangible assets, and customer relationship intangible assets for the three and nine months ended September 30, 2024 and 2023: For the Three Months Ended September 30, 2024 2023 Goodwill Core Deposit Customer Relationship Goodwill Core Deposit Customer Relationship Beginning balance $ 181,705 $ 17,837 $ 1,246 $ 148,353 $ 6,110 $ 1,514 Additions — — — 33,352 17,250 — Amortization — ( 1,278 ) ( 67 ) — ( 1,484 ) ( 67 ) Ending balance $ 181,705 $ 16,559 $ 1,179 $ 181,705 $ 21,876 $ 1,447 Accumulated amortization N/A $ 56,157 $ 2,037 N/A $ 50,840 $ 1,769 Weighted average remaining N/A 7.7 years 4.4 years N/A 8.4 years 5.4 years For the Nine Months Ended September 30, 2024 2023 Goodwill Core Deposit Customer Relationship Goodwill Core Deposit Customer Relationship Beginning balance $ 181,705 $ 20,393 $ 1,380 $ 148,353 $ 8,886 $ 1,648 Additions — — — 33,352 17,250 — Amortization — ( 3,834 ) ( 201 ) — ( 4,260 ) ( 201 ) Ending balance $ 181,705 $ 16,559 $ 1,179 $ 181,705 $ 21,876 $ 1,447 Accumulated amortization N/A $ 56,157 $ 2,037 N/A $ 50,840 $ 1,769 Weighted average remaining N/A 7.7 years 4.4 years N/A 8.4 years 5.4 years The Company added additional goodwill and core deposit intangible assets in conjunction with the Inland acquisition. Please refer to Note 3 — Acquisition of a Business for further details. The following table presents the estimated amortization expense for core deposit intangible and customer relationship intangible assets remaining at September 30, 2024: Estimated 2024 $ 1,345 2025 4,473 2026 3,566 2027 2,676 2028 2,101 Thereafter 3,577 Total $ 17,738

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Note 10—Income Taxes The Company uses an estimated annual effective tax rate method in computing its interim tax provision. This effective tax rate is based on forecasted annual pre-tax income, permanent tax differences and statutory tax rates. The effective tax rate for the nine months ended September 30, 2024 and 2023 was 25.1 % and 26.0 %, respectively. The Company recorded discrete income tax benefit of $ 1.3 million and $ 196,000 related to the exercise of stock options and vesting of restricted shares for the nine months ended September 30, 2024 and 2023, respectively. Net deferred tax assets decreased to $ 37.7 million at September 30, 2024 compared to $ 50.1 million at December 31, 2023. The net decrease in the total net deferred tax assets was primarily a result of a decreases in unrealized losses on available-for-sale securities. D uring the second quarter 2024, Illinois House Bill 4951 was enacted, which amends numerous Illinois tax law provisions, including a temporary limitation on Net Loss Deduction ("NLD") usage. For tax years 2024, 2025, and 2026, C Corporations are limited to applying a maximum of $ 500,000 of NLD to taxable income.

Deposits

Deposits	9 Months Ended
	Sep. 30, 2024
Deposits [Abstract]
Deposits	Note 11—Deposits The composition of deposits was as follows as of September 30, 2024 and December 31, 2023: September 30, December 31, 2024 2023 Non-interest-bearing demand deposits $ 1,729,908 $ 1,905,876 Interest-bearing checking accounts 749,721 577,609 Money market demand accounts 2,426,522 2,266,030 Other savings 489,618 542,532 Time deposits (below $250,000) 1,639,658 1,520,082 Time deposits ($250,000 and above) 462,460 364,870 Total deposits $ 7,497,887 $ 7,176,999 There were $ 428.6 million and $ 480.0 m illion of brokered deposits included in time deposits below $ 250,000 at September 30, 2024 and December 31, 2023, respectively. At September 30, 2024, the scheduled maturities of time deposits were: Scheduled Maturities 2024 $ 638,936 2025 1,448,003 2026 8,622 2027 4,981 2028 1,121 Thereafter 455 Total $ 2,102,118 The Company hedges interest rates on certain money market accounts using interest rate swaps through which the Company receives variable amounts and pays fixed amounts. Refer to Note 16—Derivative Instruments and Hedging Activities for additional discussion.

Other Borrowings

Other Borrowings	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Other Borrowings	Note 12—Other Borrowings The following is a summary of the Company’s other borrowings as of the dates presented: September 30, December 31, 2024 2023 Federal Home Loan Bank advances $ 470,000 $ 325,000 Securities sold under agreements to repurchase 35,453 40,607 Term loan 13,333 18,333 Line of credit — 11,250 Total $ 518,786 $ 395,190 Byline Bank has the capacity to borrow funds from the discount window of the Federal Reserve System. As of September 30, 2024 and December 31, 2023 , there were no outstanding advances under the Federal Reserve Bank discount window line. We pledge loans and leases as collateral for the FRB discount window borrowing. Refer to Note 5—Loan and Lease Receivables and Allowance for Credit Losses for additi onal discussion. On January 17, 2024, we entered into a Letter Agreement with the Federal Reserve Bank of Chicago ("FRB") that allowed the Bank to access the Bank Term Funding Program ("BTFP") . On January 22, 2024, we opened an advance of $ 200.0 million from the FRB as part of the BTFP. Under the terms of the BTFP, the Bank pledged securities to the FBR as collateral for available advances. The advance carried a fixed interest rate of 4.91 %. Advances under the BTFP are prepayable at any time without a prepayment penalty. On September 19, 2024, we repaid the BTFP advance in full. At September 30, 2024, one variable-rate Federal Home Loan Bank (“FHLB”) advance totaled $ 250.0 million, with an interest rate of 5.00 % and a maturity in December 2024. One fixed-rate advance was $ 220.0 million at September 30, 2024 , with an interest rates of 4.94 % that matured in October 2024. Advances from the FHLB are collateralized by residential real estate loans and commercial real estate loans. The Bank’s maximum borrowing capacity is limited to 35 % of total assets. Required investment in FHLB stock is $ 4.50 for every $100 in advances thereafter. Securities sold under agreements to repurchase represent a demand deposit product offered to customers that sweep balances in excess of the Federal Deposit Insurance Corporation ("FDIC") insurance limit into overnight repurchase agreements. The Company pledges securities as collateral for the repurchase agreements. Refer to Note 4—Securities for additional discussion. On October 13, 2016, we entered into a $ 30.0 million revolving credit agreement with a correspondent bank. Through subsequent amendments, the revolving credit agreement was reduced to $ 15.0 million. The amended revolving line of credit bears interest at either the Secured Overnight Financing Rate ("SOFR") plus 205 basis points or Prime Rate minus 75 basis points, not to be less than 2.00%, based on the Company’s election, which is required to be communicated at least three business days prior to the commencement of an interest period. If the Company fails to provide timely notification, the interest rate will be Prime Rate minus 75 basis points. On May 24, 2024, we entered into the First Amendment to the Second Amended and Restated Term Loan and Revolving Credit Agreement (the "Amendment") with the lender, which is effective May 26, 2024, and provides for: (1) the renewal of the revolving line-of-credit facility of up to $ 15.0 million, and (2) extending its maturity date to May 25, 2025 , subject to the existing Negative Pledge Agreement dated October 11, 2018, as amended. At September 30, 2024 , the variable term loan had an interest rate of 7.50 % and an outstanding balance of $ 13.3 million. At December 31, 2023, the variable term loan had an interest rate of 7.64 % and an outstanding balance of $ 18.3 million. At September 30, 2024 , the line of credit had a no outstanding balance. At December 31, 2023 , the line of credit had a $ 11.3 million outstanding balance and an interest rate of 7.39 %. The following table presents short-term credit lines available for use as of the dates presented: September 30, December 31, 2024 2023 Federal Home Loan Bank line $ 2,878,966 $ 2,781,747 Federal Reserve Bank of Chicago discount window line 780,977 866,490 Available federal funds lines 127,500 123,750 The Company hedges interest rates on borrowed funds using interest rate swaps through which the Company receives variable amounts and pays fixed amounts. Refer to Note 16—Derivative Instruments and Hedging Activities for additional discussion.

Subordinated Notes and Junior S

Subordinated Notes and Junior Subordinated Debentures	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Subordinated Notes and Junior Subordinated Debentures	Note 13—Subordinated Notes and Junior Subordinated Debentures In 2020, the Company issued $ 75.0 million in fixed-to-floating subordinated notes that mature on July 1, 2030 . The subordinated notes bear a fixed interest rate of 6.00 % until July 1, 2025 and a floating interest rate equal to a benchmark rate, which is expected to be the three-month SOFR, plus 588 basis points thereafter until maturity. The transaction resulted in debt issuance costs of approximately $ 1.7 million that is being amortized over 10 years . As of September 30, 2024, the net liability outstanding of the subordinated notes was $ 74.0 million. The Company may, at its option, redeem the notes, in whole or in part, on a semi-annual basis beginning on July 1, 2025, subject to obtaining the prior approval of the Federal Reserve to the extent such approval is then required. The subordinated notes qualify as Tier 2 capital for regulatory capital purposes. At September 30, 2024 and December 31, 2023, the Company’s junior subordinated debentures by issuance were as follows: Aggregate Principal Amount Name of Trust Stated September 30, 2024 December 31, 2023 Contractual Rate September 30, 2024 Interest Rate Spread (1) Metropolitan Statutory Trust I March 17, 2034 $ 35,000 $ 35,000 7.99 % SOFR + spread adjustment + 2.79 % First Evanston Bancorp Trust I March 15, 2035 10,000 10,000 6.99 % SOFR + spread adjustment + 1.78 % AmeriMark Capital Trust I April 23, 2034 5,000 5,000 8.29 % SOFR + spread adjustment + 2.75 % Inland Bancorp Trust II September 15, 2035 10,000 10,000 6.81 % SOFR + spread adjustment + 1.60 % Inland Bancorp Trust III December 15, 2036 10,000 10,000 6.86 % SOFR + spread adjustment + 1.65 % Inland Bancorp Trust IV June 6, 2037 7,000 7,000 6.88 % SOFR + spread adjustment + 1.62 % Inland Bancorp Trust V September 15, 2037 10,000 10,000 6.63 % SOFR + spread adjustment + 1.42 % Total liability, at par 87,000 87,000 Discount ( 16,217 ) ( 16,548 ) Total liability, at carrying value $ 70,783 $ 70,452 (1) SOFR is three-month SOFR and the spread adjustment is 0.26161 % In 2004, the Company’s predecessor, Metropolitan Bank Group, Inc., issued $ 35.0 million floating rate junior subordinated debentures to Metropolitan Statutory Trust I, which was formed for the issuance of trust preferred securities. Beginning on September 14, 2023, the interest rate reset to the three-month SOFR plus a tenor spread adjustment of 0.26161 % plus 2.79 % ( 7.99 % and 8.43 % at September 30, 2024 and December 31, 2023, respectively). Interest is paid on a quarterly basis. The Company has the right to redeem the debentures, in whole or in part, on any interest payment date on or after March 2009. As part of the First Evanston acquisition, the Company assumed the obligations to First Evanston Bancorp Trust I of $ 10.0 million in principal amount, which was formed for the issuance of trust preferred securities. Beginning on September 15, 2023, the interest rate reset to the three-month SOFR plus a tenor spread adjustment of 0.26161 % plus 1.78 % ( 6.99 % and 7.43 % at September 30, 2024 and December 31, 2023, respectively), which is in effect until the debentures mature in 2035. Interest is paid on a quarterly basis. The Company has the right to redeem the debentures, in whole or in part, on any interest payment date on or after March 2010. The Company has the option to defer interest payments on the debentures from time to time for a period not to exceed five consecutive years. As part of the Inland acquisition, the Company assumed the obligations to several trust preferred securities. Refer to Note 3—Acquisition of a Business for further details. Interest rates are calculated as the three-month SOFR plus a tenor spread adjustment of 0.26161 % plus negotiated additional basis points. Refer to table above for contractual rates and interest rate spread calculation. Interest is paid on a quarterly basis. The Trusts are not consolidated with the Company. Accordingly, the Company reports the subordinated debentures held by the Trusts as liabilities. The Company owns all of the common securities of each trust. The junior subordinated debentures qualify, and are treated as, Tier 1 regulatory capital of the Company subject to regulatory limitations. The trust preferred securities issued by each trust rank equally with the common securities in right of payment, except that if an event of default under the indenture governing the notes has occurred and is continuing, the preferred securities will rank senior to the common securities in right of payment.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	9 Months Ended
	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	Note 14—Commitments and Contingent Liabilities Legal contingencies —In the ordinary course of business, the Company and Bank have various outstanding commitments and contingent liabilities that are not recognized in the accompanying consolidated financial statements. In addition, the Company may be a defendant in certain claims and legal actions arising in the ordinary course of business. In the opinion of management, after consultation with legal counsel, the ultimate disposition of these matters is currently not expected to have a material adverse effect on the Company’s Consolidated Financial Statements. Operating lease commitments —Refer to Note 8—Leases for discussion of operating lease commitments. Commitments to extend credit —The Company is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. Those instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the Condensed Consolidated Statements of Financial Condition. The contractual or notional amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments. The Company’s exposure to credit loss in the event of non-performance by the other party to the financial instrument for commitments to extend credit and letters of credit is represented by the contractual or notional amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for funded instruments. The Company does not anticipate any material losses as a result of the commitments and letters of credit. The following table summarizes the contract or notional amount of outstanding loan and lease commitments at September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Fixed Rate Variable Rate Total Fixed Rate Variable Rate Total Commitments to extend credit $ 204,866 $ 1,845,018 $ 2,049,884 $ 269,325 $ 2,013,819 $ 2,283,144 Letters of credit 630 63,404 64,034 612 67,443 68,055 Total $ 205,496 $ 1,908,422 $ 2,113,918 $ 269,937 $ 2,081,262 $ 2,351,199 Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amount does not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the counterparty. Collateral is primarily obtained in the form of commercial and residential real estate (including income producing commercial properties). Letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements, bond financing and similar transactions. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. Commitments to make loans are generally made for periods of 90 days or less. The fixed rate loan commitments have interest rates ranging from 1.00 % to 15.00 % and maturities up to 2052 . Variable rate loan commitments have interest rates ranging from 4.00 % to 18.00 % and maturities up to 2053 .

Fair Value Measurement

Fair Value Measurement	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurement	Note 15—Fair Value Measurement Fair value is the exchange price that would 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. In addition, the Company has the ability to obtain fair values for markets that are not accessible. These types of inputs create the following fair value hierarchy: Level 1 —Quoted prices in active markets for identical assets or liabilities. Level 2 —Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-derived valuations whose inputs are observable or whose significant value drivers are observable. Level 3 —Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the asset or liability. Unobservable inputs are used to measure fair value to the extent that observable inputs are not available. The Company’s own data used to develop unobservable inputs may be adjusted for market considerations when reasonably available. The categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to assets and liabilities. The Company used the following methods and significant assumptions to estimate fair value for certain assets measured and carried at fair value on a recurring basis: Securities available-for-sale —The Company obtains fair value measurements from an independent pricing service. Management reviews the procedures used by the third party, including significant inputs used in the fair value calculations. 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, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. When market quotes are not readily accessible or available, alternative approaches are utilized, such as matrix or model pricing. The Company’s methodology for pricing non-rated bonds focuses on three distinct inputs: equivalent rating, yield and other pricing terms. To determine the rating for a given non-rated municipal bond, the Company references a publicly issued bond by the same issuer if available as well as other additional key metrics to support the credit worthiness. Typically, pricing for these types of bonds would require a higher yield than a similar rated bond from the same issuer. A reduction in price is applied to the rating obtained from the comparable bond, as the Company believes if liquidated, a non-rated bond would be valued less than a similar bond with a verifiable rating. The reduction applied by the Company is one notch lower (i.e. a “AA” rating for a comparable bond would be reduced to “AA-” for the Company’s valuation). In 2024 and 2023, all of the ratings derived by the Company were “BBB-” or better with and without comparable bond proxies. All of the ratings of non-Agency backed bonds derived by the Company were investment grade. The fair value measurement of municipal bonds is sensitive to the rating input, as a higher rating typically results in an increased valuation. The remaining pricing inputs used in the bond valuation are observable. Based on the rating determined, the Company obtains a corresponding current market yield curve available to market participants. Other terms including coupon, maturity date, redemption price, number of coupon payments per year, and accrual method are obtained from the individual bond term sheets. Equity and other securities —The Company utilizes the same fair value measurement methodology for equity and other securities as detailed in the securities available-sale portfolio above. Servicing assets —Fair value is based on a loan-by-loan basis taking into consideration the original term to maturity, the current age of the loan and the remaining term to maturity. The valuation methodology utilized for the servicing assets begins with generating estimated future cash flows for each servicing asset, based on their unique characteristics and market-based assumptions for prepayment speeds and costs to service. The present value of the future cash flows are then calculated utilizing market-based discount rate assumptions. Derivative instruments —Interest rate derivatives are valued by a third party, using models that primarily use market observable inputs, such as yield curves, and are validated by comparison with valuations provided by the respective counterparties. Derivative financial instruments are included in accrued interest receivable and other assets, and accrued interest payable and other liabilities in the Condensed Consolidated Statements of Financial Condition. The following tables summarize the Company’s financial assets and liabilities that were measured at fair value on a recurring basis at September 30, 2024 and December 31, 2023: Fair Value Measurements Using September 30, 2024 Fair Value Level 1 Level 2 Level 3 Financial assets Securities available-for-sale U.S. Treasury Notes $ 42,512 $ 42,512 $ — $ — U.S. Government agencies 150,539 150,539 Obligations of states, municipalities, and political 82,283 — 82,283 — Mortgage-backed securities; residential Agency 812,787 — 812,787 — Non-Agency 128,330 — 128,330 — Mortgage-backed securities; commercial Agency 232,169 — 232,169 — Corporate securities 38,077 — 38,077 — Asset-backed securities 15,411 — 15,411 — Equity and other securities, at fair value Mutual funds 2,605 2,605 — — Equity securities 6,527 — 6,239 288 Servicing assets 18,945 — — 18,945 Derivative assets 40,620 — 40,620 — Financial liabilities Derivative liabilities 14,513 — 14,513 — Fair Value Measurements Using December 31, 2023 Fair Value Level 1 Level 2 Level 3 Financial assets Securities available-for-sale U.S. Treasury Notes $ 115,434 $ 115,434 $ — $ — U.S. Government agencies 130,695 — 130,695 — Obligations of states, municipalities, and political 82,275 — 82,275 Mortgage-backed securities; residential Agency 695,803 — 695,803 — Non-Agency 100,260 — 100,260 — Mortgage-backed securities; commercial Agency 147,204 — 147,204 — Corporate securities 36,171 — 36,171 — Asset-backed securities 34,638 — 34,638 — Equity and other securities, at fair value Mutual funds 2,554 2,554 — — Equity securities 6,189 — 5,908 281 Servicing assets 19,844 — — 19,844 Derivative assets 56,923 — 56,923 — Financial liabilities Derivative liabilities 19,345 — 19,345 — The following table presents additional information about financial assets measured at fair value on recurring basis for which the Company used significant unobservable inputs (Level 3): Nine Months Ended September 30, 2024 2023 2024 2023 Investment Securities Servicing Assets Balance, beginning of period $ 281 $ 666 $ 19,844 $ 19,172 Additions, net — — 4,455 4,426 Maturity — ( 400 ) — — Accretion of discount — 82 — — Change in fair value 7 ( 67 ) ( 5,354 ) ( 3,855 ) Balance, end of period $ 288 $ 281 $ 18,945 $ 19,743 The Company did no t have any transfers to or from Level 3 of the fair value hierarchy during the nine months ended September 30, 2024 and 2023. The following table presents additional information about the unobservable inputs used in the fair value measurements on recurring basis that were categorized within Level 3 of the fair value hierarchy as of September 30, 2024: Financial Instruments Valuation Technique Unobservable Inputs Range of Weighted Impact to Single issuer trust preferred Discounted cash flow Discount rate 7.9 % 7.9 % Decrease Servicing assets Discounted cash flow Prepayment speeds 0.0 % - 34.7 % 16.8 % Decrease Discount rate 6.1 % - 56.8 % 11.7 % Decrease Expected weighted 0.0 - 8.0 Years 3.6 Years Increase The Company used the following methods and significant assumptions to estimate fair value for certain assets measured and carried at fair value on a no n-recurring basis: Individually evaluated loans —The Company individually evaluates loans that do not share similar risk characteristics, including non-accrual loans. Specific allowance for credit losses is measured based on a discounted cash flow of ongoing operations, discounted at the loan's original effective interest rate, or a calculation of the fair value of the underlying collateral less estimated selling costs. Valuations of individually assessed loans that are collateral dependent are supported by third party appraisals in accordance with the Bank's credit policy. Accordingly, individually evaluated loans are classified as Level 3. Assets held for sale —Assets held for sale consist of former branch locations and real estate previously purchased for expansion. Assets are considered held for sale when management has approved to sell the assets following a branch closure or other events. The properties are being actively marketed and transferred to assets held for sale based on the lower of carrying value or its fair value, less estimated costs to sell. The Company records assets held for sale on the Condensed Consolidated Statements of Financial Condition within accrued interest receivable and other assets. Other real estate owned —Certain assets held within other real estate owned represent real estate or other collateral that has been adjusted to its estimated fair value, less cost to sell, as a result of transferring from the loan portfolio at the time of foreclosure or repossession and based on management’s periodic impairment evaluation. From time to time, non-recurring fair value adjustments to other real estate owned are recorded to reflect partial write-downs based on an observable market price or current appraised value of property. Adjustments to fair value based on such non-recurring transactions generally result from the application of lower-of-cost-or-market accounting or write-downs of individual assets due to impairment. The following tables summarize the Company’s assets that were measured at fair value on a non-recurring basis, as of September 30, 2024 and December 31, 2023: Fair Value Measurements Using September 30, 2024 Fair Value Level 1 Level 2 Level 3 Non-recurring Individually evaluated loans Commercial real estate $ 27,713 $ — $ — $ 27,713 Residential real estate 3,509 — — 3,509 Commercial and industrial 32,263 — — 32,263 Assets held for sale 2,676 — — 2,676 Other real estate owned 532 — — 532 Fair Value Measurements Using December 31, 2023 Fair Value Level 1 Level 2 Level 3 Non-recurring Individually evaluated loans Commercial real estate $ 51,978 $ — $ — $ 51,978 Residential real estate 3,593 — — 3,593 Construction, land development, and other land 813 — — 813 Commercial and industrial 29,869 — — 29,869 Assets held for sale 4,484 — — 4,484 Other real estate owned 1,200 — — 1,200 The following methods and assumptions were used by the Company in estimating fair values of other assets and liabilities for disclosure purposes: Cash and cash equivalents and interest bearing deposits with other banks —For these short-term instruments, the carrying amount is a reasonable estimate of fair value. Securities held-to-maturity —The Company obtains fair value measurements from an independent pricing service. Management reviews the procedures used by the third party, including significant inputs used in the fair value calculations. 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, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. When market quotes are not readily accessible or available, alternative approaches are utilized, such as matrix or model pricing. Restricted stock —The fair value has been determined to approximate cost. Loans held for sale— The fair value of loans held for sale are based on quoted market prices, where available, and determined by discounted estimated cash flows using interest rates approximating the Company’s current origination rates for similar loans adjusted to reflect the inherent credit risk. Loan and lease receivables, net —For certain variable rate loans that reprice frequently and with no significant changes in credit risk, fair value is estimated at carrying value. The fair value of other types of loans is estimated using an exit price notion. It is estimated by discounting future cash flows, using current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities. Deposits —The fair value of demand deposits, savings accounts, and certain money market deposits is the amount payable on demand at the reporting date. The fair value of fixed-maturity certificates of deposit is estimated by discounting future cash flows, using rates currently offered for deposits of similar remaining maturities. Federal Home Loan Bank advances —The fair value of FHLB advances is estimated by discounting the agreements based on maturities using rates currently offered for FHLB advances of similar remaining maturities adjusted for prepayment penalties that would be incurred if the borrowings were paid off on the measurement date. Securities sold under agreements to repurchase —The carrying amount approximates fair value due to maturities of less than ninety days. Term Loan —The carrying amount approximates fair value given the variable interest rate and repricing of interest. Line of credit —The carrying amount approximates fair value given the variable interest rate and repricing of interest. Subordinated notes —The fair value is based on available market prices. Junior subordinated debentures —The fair value of junior subordinated debentures, in the form of trust preferred securities, is determined using rates currently available to the Company for debt with similar terms and remaining maturities. Accrued interest receivable and payable —The carrying amount approximates fair value. Commitments to extend credit and letters of credit —The fair values of these off-balance sheet commitments to extend credit and commercial and letters of credit are not considered practicable to estimate because of the lack of quoted market prices and the inability to estimate fair value without incurring excessive costs. The estimated fair values of financial instruments not carried at fair value and levels within the fair value hierarchy are as follows: September 30, December 31, Fair Value 2024 2023 Hierarchy Carrying Estimated Carrying Estimated Financial assets Cash and due from banks 1 $ 77,047 $ 77,047 $ 60,431 $ 60,431 Interest bearing deposits with other banks 2 375,549 375,549 165,705 165,705 Securities held-to-maturity 2 605 603 1,157 1,149 Restricted stock 2 22,743 22,743 16,304 16,304 Loans held for sale 3 19,955 20,672 18,005 19,136 Loans and lease receivables, net (less impaired 3 6,717,101 6,538,295 6,496,367 6,326,413 Accrued interest receivable 3 40,731 40,731 43,922 43,922 Financial liabilities Non-interest-bearing deposits 2 1,729,908 1,729,908 1,905,876 1,905,876 Interest-bearing deposits 2 5,767,979 5,770,206 5,271,123 5,268,926 Accrued interest payable 2 20,162 20,162 22,233 22,233 Federal Home Loan Bank advances 2 470,000 470,000 325,000 325,000 Securities sold under repurchase agreement 2 35,453 35,453 40,607 40,607 Term Loan 2 13,333 13,333 18,333 18,333 Line of credit 2 — — 11,250 11,250 Subordinated notes 2 73,997 73,802 73,866 76,063 Junior subordinated debentures 3 70,783 74,635 70,452 72,701

Derivative Instruments and Hedg

Derivative Instruments and Hedge Activities	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedge Activities	Note 16—Derivative Instruments and Hedge Activities As required by ASC 815, the Company records all derivatives on the Condensed Consolidated Statements of Financial Condition at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. The Company records derivative assets and derivative liabilities on the Condensed Consolidated Statements of Financial Condition within accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively. The following tables present the fair value of the Company’s derivative financial instruments and classification on the Condensed Consolidated Statements of Financial Condition as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Fair Value Fair Value Notional Other Other Notional Other Other Derivatives designated as hedging instruments Interest rate swaps designated as cash flow $ 650,000 $ 26,198 $ — $ 650,000 $ 37,475 $ — Derivatives not designated as hedging instruments Other interest rate derivatives 804,488 14,417 ( 14,485 ) 706,126 19,447 ( 19,345 ) Other credit derivatives 12,718 5 ( 28 ) 3,602 1 — Total derivatives $ 1,467,206 $ 40,620 $ ( 14,513 ) $ 1,359,728 $ 56,923 $ ( 19,345 ) As of the effective time of the transaction reported in Note 3—Acquisition of a Business, Byline acquired and assumed two types of derivative instruments. Interest rate swap agreements previously designated as cash flow hedges of certain junior subordinated debentures issued to capital trusts had notional amounts of $ 42.0 million and had a fair value of $ 3.5 million included in accrued interest receivable and other assets. In July 2023, the Company terminated the interest rate swap agreements that resulted in a net gain of $ 6,000 . Other interest rate swap agreements not designated as hedging instruments had notional amounts of $ 67.7 million and fair values of $ 6.2 million reported in accrued interest receivable and other assets and accrued interest payable and other liabilities. Interest rate swaps designated as cash flow hedges —Cash flow hedges of interest payments associated with certain financial instruments had notional amounts totaling $ 650.0 million as of September 30, 2024 and December 31, 2023, respectively. The Company assesses the effectiveness of each hedging relationship by comparing the changes in fair value of the derivatives hedging instrument with the fair value of the designated hedged transactions. As of September 30, 2024 , the cash flow hedges aggregating $ 650.0 million in notional amounts are comprised of $ 450.0 million pay-fixed interest rate swaps associated with certain deposits and other borrowings, and $ 200.0 million receive-fixed interest rate swaps associated with certain variable rate loans. As of September 30, 2024, pay-fixed interest rate swaps are comprised of six effective hedges, and the receive-fixed interest rate swaps are comprised of four effective hedges. For derivatives designated and that qualify as cash flow hedges of interest rate risk, the unrealized gain or loss on the derivatives is recorded in accumulated other comprehensive income (loss) and subsequently reclassified into interest income or expense in the same period during which the hedged transaction affects earnings. Amounts reported in accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest in come or expense as interest payments are made on the hedged instruments. Interest recorded on these swap transactions included $ 4.6 million of interest income recorded for each of the three months ended September 30, 2024 and 2023 , and is reported as a component of interest expense on deposits and other borrowings. Interest recorded on these swap transactions included $ 14.2 million and $ 10.4 million of interest income recorded during nine months ended September 30, 2024 and 2023, respectively, and is reported as a component of interest expense on deposits and other borrowings. As of September 30, 2024, the Company estimate s $ 13.5 millio n of the net unrealized gain to be reclassified as a net decrease to interest expense during the next twelve months. Accumulated other comprehensive income (loss) also includes the amortization of the remaining balance related to terminated interest rate swaps designated as cash flow hedges, which are over the original life of the cash flow hedge. In March 2023, the Company terminated interest rate swaps designated as cash flow hedges totaling $ 100.0 million, of which $ 50.0 million became effective in May 2023 and $ 50.0 million became effective in June 2023. The transaction resulted in a gain of $ 4.2 million, net of tax, which was the clean value at termination date and began amortizing as a decrease to interest expense on the effective dates. The remaining unamortized balance was $ 3.0 million and $ 3.7 million as of September 30, 2024 and December 31, 2023, respectively. The following table reflects the cash flow hedges as of September 30, 2024: Notional amounts $ 650,000 Derivative assets fair value 26,198 Derivative liabilities fair value — Weighted average remaining maturity 2.2 years Receive rates are determined at the time the swaps become effective. As of September 30, 2024, the weighted average pay rates of the pay-fixed hedges for $ 450.0 million were 1.04 % and the weighted average receive rates were 5.13 %. As of September 30, 2024 , the weighted average pay rates of the receive-fixed interest rate swaps of $ 200.0 million were 8.30 % and the weighted average receive rates were 7.30 %. The following table reflects the net gains (losses) recorded in accumulated other comprehensive income (loss) and the Condensed Consolidated Statements of Operations relating to the cash flow derivative instruments for the nine months ended: September 30, 2024 September 30, 2023 Amount of Amount of Amount of Amount of Amount of Amount of Interest rate swaps $ 2,417 $ 14,192 $ — $ 13,357 $ 10,381 $ — Derivatives not designated as hedges are not speculative and are used to manage the Company’s exposure to interest rate movements and other identified risks but do not meet the strict hedge accounting requirements and/or the Company has not elected to apply hedge accounting. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings. Other interest rate derivatives —The total combined notional amount was $ 804.5 million as of September 30, 2024 with maturities ranging from October 2024 to March 2033 . The fair values of the interest rate derivative agreements are reflected in other assets and other liabilities with corresponding gains or losses reflected in non-interest income. During the three months ended September 30, 2024 and 2023, there were $ 811,000 and $ 115,000 of net transaction fees, included in other non-interest income, related to these derivative instruments. During the nine months ended September 30, 2024 and 2023, there were $ 925,000 and $ 587,000 of net transaction fees, included in other non-interest income, related to these derivative instruments. These instruments are inherently subject to market risk and credit risk. Market risk is associated with changes in interest rates and credit risk relates to the Company’s risk of loss when the counterparty to a derivative contract fails to perform according to the terms of the agreement. Market and credit risks are managed and monitored as part of the Company’s overall asset-liability management process. The credit risk related to derivatives entered into with certain qualified borrowers is managed through the Company’s loan underwriting process. The Company’s loan underwriting process also approves the Bank’s swap counterparty used to mirror the borrowers’ swap. The Company has a bilateral agreement with each swap counterparty that provides that fluctuations in derivative values are to be fully collateralized with either cash or securities. The following table reflects other interest rate derivatives as of September 30, 2024: Notional amounts $ 804,488 Derivative assets fair value 14,417 Derivative liabilities fair value 14,485 Weighted average pay rates 4.59 % Weighted average receive rates 5.41 % Weighted average remaining maturity 4.0 years Other derivatives — The Company has entered into risk participation agreements with counterparty banks to assume a portion of the credit risk related to borrower transactions. As of September 30, 2024 and December 31, 2023, the notional amount of risk participated in was $ 10.4 million and $ 1.2 million, respectively, and the notional amount of risk participated out was $ 2.3 million and $ 2.4 million, respectively. The credit risk related to these other derivatives is managed through the Company’s loan underwriting process. Additionally, the Company enters into foreign currency contracts to manage foreign exchange risk associated with certain customer foreign currency transactions. These transactions were not material to the consolidated financial statements as of September 30, 2024 and December 31, 2023. The fair values of the credit derivatives is reflected in accrued interest receivable and other assets and accrued interest payable and other liabilities with corresponding gains or losses reflected in non-interest income or other comprehensive income. The Company has agreements with its derivative counterparties that contain a cross-default provision under which if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company also has agreements with certain derivative counterparties that contain a provision where if the Company fails to maintain its status as a well or adequately capitalized institution, then the counterparty could terminate the derivative positions and the Company would be required to settle its obligations resulted in a net asset position. The following table reflects amounts included in non-interest income in the Condensed Consolidated Statements of Operations relating to derivative instruments that are not designated in a hedging relationship for the three and nine months ended September 30, 2024 and 2023: Three Months Ended Nine Months Ended September 30, September 30, 2024 2023 2024 2023 Other interest rate derivatives $ 263 $ 423 $ 170 $ 230 Other credit derivatives 7 — ( 47 ) — Total $ 270 $ 423 $ 123 $ 230 The Company records interest rate derivatives subject to master netting agreements at their gross value and does not offset derivative asset and liabilities on the Condensed Consolidated Statements of Financial Condition. The table below summarizes the Company’s interest rate derivatives and offsetting positions as of the periods indicated: September 30, 2024 December 31, 2023 Derivative Derivative Derivative Derivative Gross amounts recognized $ 40,620 $ ( 14,513 ) $ 56,923 $ ( 19,345 ) Less: Amounts offset in the Condensed Consolidated — — — — Net amount presented in the Condensed Consolidated $ 40,620 $ ( 14,513 ) $ 56,923 $ ( 19,345 ) Gross amounts not offset in the Condensed Consolidated Offsetting derivative positions ( 2,021 ) 2,021 ( 925 ) 925 Collateral posted ( 35,590 ) — ( 54,930 ) — Net credit exposure $ 3,009 $ ( 12,492 ) $ 1,068 $ ( 18,420 ) As of September 30, 2024, the fair value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk, related to these agreements was $ 14.5 million . If the Company had breached any of these provisions at September 30, 2024 , it could have been required to settle its obligations under the agreements at their termination value less offsetting positions of $ 2.0 million. For purposes of this disclosure, the amount of posted collateral by the Company and counterparties is limited to the amount offsetting the derivative asset and derivative liability.

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation	Note 17 – Share-Based Compensation In June 2017, the Company's Board of Directors adopted, and the Company's stockholder approved, the 2017 Omnibus Incentive Compensation Plan (the “Omnibus Plan”). The Omnibus Plan provides for the grant of stock options, stock appreciation rights, restricted stock, restricted stock units, dividend equivalent rights and other equity-based, equity-related or cash-based awards. A total of 2,600,000 shares of our common stock have been reserved for issuance under the Omnibus Plan. As of September 30, 2024, there were 806,210 shares available for future grants under the Omnibus Plan. The Company primarily grants time-based restricted share awards that vest over a one to four year period, subject to continued employment. The Company also grants performance-based restricted share awards. The number of shares which may be earned under the award is dependent upon the Company’s return on average assets, weighted equally over a three-year period and measured against a peer group consisting of publicly-traded bank holding companies. Results will be measured cumulatively at the end of the three years. Any earned shares will vest on the third anniversary of the grant date. During 2024, the Company granted 376,799 shares of restricted common stock, par value $ 0.01 per share. Of this total, 294,819 restricted shares will vest ratably over three years on each anniversary of the grant date, 12,861 restricted shares will cliff vest on the third anniversary of the grant date, and 3,083 restricted shares will vest on the first anniversary of the grant date, all subject to continued employment. In addition, 66,036 performance-based restricted shares were included in the 2024 grant. The number of performance-based shares which may be earned under the award is dependent upon the Company’s total stockholder return and return on average assets, weighted equally, over a three-year period ending December 31, 2026, measured against the KBW Regional Bank Index. Results will be measured cumulatively at the end of the three years and any earned shares will vest on the third anniversary of the grant date. The following table discloses the changes in restricted shares for the nine months ended September 30, 2024: Omnibus Plan Number of Shares Weighted Average Beginning balance, January 1, 2024 627,271 $ 24.24 Granted 376,799 20.92 Incremental performance shares issued and vested 13,632 Vested ( 240,380 ) 22.57 Forfeited ( 15,148 ) 24.28 Ending balance outstanding at September 30, 2024 762,174 $ 23.04 A total o f 240,380 r estricted shares vested during the nine months ended September 30, 2024. A total of 238,638 restricted shares vested during the year ended December 31, 2023. The fair value of restricted shares that vested during the nine months ended September 30, 2024 was $ 5.1 million. The fair value of restricted shares that vested during the year ended December 31, 2023 was $ 5.7 million. The Company recognizes share-based compensation based on the estimated fair value of the restricted stock at the grant date. Share-based compensation expense is included in non-interest expense in the Condensed Consolidated Statements of Operations. The fair value of the total stock return performance-based awards granted in 2024 and 2023 were calculated based on a Monte Carlo simulation, using the following assumptions: Performance Based Grants 2024 2023 Risk-free interest rate 4.47 % 4.42 % Expected term (years) 2.85 years 2.85 years Expected stock price volatility 29.28 % - 33.68 % 38.11 % - 39.80 % Weighted average grant date fair value $ 20.18 $ 25.20 The following table summarizes restricted stock compensation expense for the nine months ended September 30, 2024 and 2023: Nine Months Ended September 30, 2024 2023 Total share-based compensation - restricted stock $ 5,582 $ 4,922 Income tax benefit 1,517 1,322 Unrecognized compensation expense 11,567 11,189 Weighted average remaining amortization period 1.9 years 2.1 years The fair value of the unvested restricted stock awards at September 30, 2024 was $ 20.4 million. In October 2014, the Company adopted the Byline Bancorp, Inc. Equity Incentive Plan (“BYB Plan”). The maximum number of shares available for grants under this plan was 2,476,122 shares. The Company granted 1,846,968 options to purchase shares under this plan. In June 2017, the Board of Directors terminated the BYB Plan and no future grants can be made under this plan. Options to purchase a total of 365,423 shares remain outstanding under the BYB Plan at September 30, 2024. The types of stock options granted under the BYB Plan were Time Options and Performance Options. The exercise price of each option is equal to the fair value of the stock as of the date of grant. These option awards have vesting periods ranging from one to five years and have 10-year contractual terms. Stock volatility was computed as the average of the volatilities of peer group companies. All outstanding stock options were fully vested and exercisable at September 30, 2024. The fair values of the stock options were determined using the Black-Scholes-Merton model for Time Options and a Monte Carlo simulation model for Performance Options. The following table discloses the activity in shares subject to options and the weighted average exercise prices, in actual dollars, for the nine months ended September 30, 2024: BYB Plan Number of Shares Weighted Average Exercise Price Intrinsic Weighted Average Remaining Contractual Term (in Years) Beginning balance, January 1, 2024 768,564 $ 11.31 $ 9,413 1.5 Exercised ( 403,141 ) 11.18 $ 5,556 Expired — Ending balance outstanding at September 30, 2024 365,423 $ 11.46 $ 5,596 0.8 Exercisable at September 30, 2024 365,423 $ 11.46 $ 5,596 0.8 A total of 403,141 stock options were exercised during the nine months ended September 30, 2024 . Proceeds from exercise of stock options were $ 2.1 million and had a related tax benefit of $ 1.5 million for the nine months ended September 30, 2024 . No stock options were exercised during the year ended December 31, 2023. No stock options vested during the nine months ended September 30, 2024 or the year ended December 31, 2023. No stock option compensation expense was recognized for the nine months ended September 30, 2024 or the year ended December 31, 2023. Pursuant to the terms of the Agreement and Plan of Merger with First Evanston and its subsidiaries, dated as of November 27, 2017 (the "First Evanston Merger Agreement"), each outstanding First Evanston option held by a participant in the First Evanston Bancorp, Inc. Stock Incentive Plan (the "FEB Plan") ceased to represent a right to acquire shares of First Evanston common stock and was assumed and converted automatically into a fully vested and exercisable adjusted option to purchase shares of Byline common stock (each an "Adjusted Option"). In accordance with the First Evanston Merger Agreement, the number of shares of Byline common stock to which each such Adjusted Option relates is equal to the product (rounded down to the nearest whole share of Byline common stock) of: (a) the number of shares of First Evanston common stock subject to the First Evanston option immediately prior to May 31, 2018, multiplied by (b) 4.725 . Each Adjusted Option has an exercise price per share of Byline common stock equal to the quotient (rounded up to the nearest whole cent) of (x) the per share exercise price of such First Evanston option immediately prior to May 31, 2018, divided by (y) 4.725 . The description of the conversion process is based on, and qualified by, the First Evanston Merger Agreement. The following table discloses the activity in shares subject to options under the FEB Plan and the weighted average exercise prices, in actual dollars, for the nine months ended September 30, 2024: FEB Plan Number of Shares Weighted Average Exercise Price Intrinsic Weighted Average Remaining Contractual Term (in Years) Beginning balance, January 1, 2024 103,135 $ 11.95 $ 1,197 1.9 Exercised ( 36,805 ) $ 11.68 $ 554 Expired — Ending balance outstanding at September 30, 2024 66,330 $ 12.10 $ 973 1.6 Exercisable at September 30, 2024 66,330 $ 12.10 $ 973 1.6 A total of 36,805 stock Adjusted Options were exercised during the nine months ended September 30, 2024 . Proceeds from exercise of Adjusted Options were $ 430,000 and had a related tax benefit of $ 148,000 for the nine months ended September 30, 2024 . A total of 59,153 Adjusted Options were exercised during the during the year ended December 31, 2023, with proceeds of $ 659,000 and a related tax benefit of $ 158,000 .

Earnings per Share

Earnings per Share	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Earnings per Share	Note 18—Earnings per Share A reconciliation of the numerators and denominators for earnings per common share computations is presented below. Incremental shares represent outstanding stock options for which the exercise price is less than the average market price of the Company’s common stock during the periods presented. Options to purchase 431,753 and 901,086 shares of common stock were outstanding as of September 30, 2024 and 2023 , respectively. There were 762,174 and 675,222 restricted stock awards outstanding at September 30, 2024 and 2023, respectively. For the three and nine months ended September 30, 2024 and 2023 , there were no anti-dilutive weighted average shares outstanding. The following represent the calculation of basic and diluted earnings per share for the periods presented: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Net income $ 30,328 $ 28,222 $ 90,439 $ 78,274 Weighted-average common stock outstanding: Weighted-average common stock outstanding (basic) 43,516,006 43,025,927 43,379,038 39,027,450 Incremental shares 450,183 432,183 384,156 435,402 Weighted-average common stock outstanding 43,966,189 43,458,110 43,763,194 39,462,852 Basic earnings per common share $ 0.70 $ 0.66 $ 2.08 $ 2.01 Diluted earnings per common share $ 0.69 $ 0.65 $ 2.07 $ 1.98

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Stockholders' Equity	Note 19—Stockholders’ Equity A summary of the Company’s preferred and common stock at September 30, 2024 and December 31, 2023 is as follows: September 30, December 31, 2024 2023 Preferred stock Par value $ 0.01 $ 0.01 Shares authorized 25,000,000 25,000,000 Shares issued — — Shares outstanding — — Common stock, voting Par value $ 0.01 $ 0.01 Shares authorized 150,000,000 150,000,000 Shares issued 46,180,735 45,714,241 Shares outstanding 44,384,706 43,764,056 Treasury shares 1,796,029 1,950,185 On December 12, 2022, we announced that our Board of Directors approved a stock repurchase program authorizing the purchase of up to an aggregate of 1,250,000 shares of our outstanding common stock. The program was in effect from January 1, 2023 until December 31, 2023. No shares were repurchased under this program. On December 6, 2023, we announced that our Board of Directors approved a new stock repurchase program authorizing the purchase of up to an aggregate of 1,250,000 shares of the Company’s outstanding common stock. The program is in effect from January 1, 2024 until December 31, 2024, unless terminated earlier. The shares may, at the discretion of management, be repurchased from time to time in open market purchases as market conditions warrant or in privately negotiated transactions. The Company is not obligated to purchase any shares under the program, and the program may be discontinued at any time. The actual timing, number and share price of shares purchased under the repurchase program will be determined by the Company at its discretion and will depend on a number of factors, including the market price of the Company’s stock, general market and economic conditions and applicable legal requirements. The shares authorized to be repurchased represented approximately 2.9 % of the Company’s outstanding common stock at December 31, 2023. We did no t purchase any shares under either stock repurchase program during the three or nine months ended September 30, 2024 and 2023. Repurchased shares are recorded as treasury shares on the trade date using the treasury stock method, and the cash paid is recorded as treasury stock. Treasury stock acquired is recorded at cost and is carried as a reduction of stockholders’ equity in the Condensed Consolidated Statements of Financial Condition. For each of the three months ended September 30, 2024 and 2023, cash dividends were declared and paid to stockholders of record of our common stock of $ 0.09 per share. For each of the nine months ended September 30, 2024 and 2023, cash dividends were declared and paid to stockholders of record of our common stock of $ 0.27 per share. On October 22, 2024, our Board of Directors declared a cash dividend of $ 0.09 per share payable on November 19, 2024 to stockholders of record of our common stock as of November 5, 2024 .

Consolidated Statements of Chan

Consolidated Statements of Changes in Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Consolidated Statements of Changes in Accumulated Other Comprehensive Income (Loss)	Note 20—Consolidated Statements of Changes in Accumulated Other Comprehensive Income (Loss) The following table summarizes the changes in accumulated other comprehensive income (loss) for the three and nine months ended September 30, 2024 and 2023: (dollars in thousands) Unrealized Gains Unrealized Losses Total Accumulated Balance, June 30, 2023 $ 36,433 $ ( 151,295 ) $ ( 114,862 ) Other comprehensive income (loss), net of tax 63 ( 27,360 ) ( 27,297 ) Balance, September 30, 2023 $ 36,496 $ ( 178,655 ) $ ( 142,159 ) Balance, January 1, 2023 $ 34,315 $ ( 151,865 ) $ ( 117,550 ) Other comprehensive income (loss), net of tax 2,181 ( 26,790 ) ( 24,609 ) Balance, September 30, 2023 $ 36,496 $ ( 178,655 ) $ ( 142,159 ) Balance, June 30, 2024 $ 27,672 $ ( 139,141 ) $ ( 111,469 ) Other comprehensive income (loss), net of tax ( 6,175 ) 38,966 32,791 Balance, September 30, 2024 $ 21,497 $ ( 100,175 ) $ ( 78,678 ) Balance, January 1, 2024 $ 30,131 $ ( 130,248 ) $ ( 100,117 ) Other comprehensive income (loss), net of tax ( 8,634 ) 30,073 21,439 Balance, September 30, 2024 $ 21,497 $ ( 100,175 ) $ ( 78,678 )

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	These unaudited interim condensed consolidated financial statements include the accounts of Byline Bancorp, Inc., a Delaware corporation (the “Company,” “Byline,” “we,” “us,” “our”), a bank holding company whose principal activity is the ownership and management of its Illinois state chartered subsidiary bank, Byline Bank (the “Bank”), based in Chicago, Illinois. These unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the Securities and Exchange Commission (“SEC”). In preparing these financial statements, the Company has evaluated events and transactions subsequent to September 30, 2024 for potential recognition or disclosure. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the financial position and results of operations for the periods presented have been included. Certain information in footnote disclosures normally included in financial statements prepared in accordance with GAAP has been condensed or omitted pursuant to the rules and regulations of the SEC and the accounting standards for interim financial statements. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Consolidated Financial Statements as of December 31, 2023 and 2022 and for each of the three years in the period ended December 31, 2023. The Company has one reportable segment. The Company’s chief operating decision makers evaluate the operations of the Company using consolidated information for purposes of allocating resources and assessing performance. Therefore, segments disclosures are currently not required. In accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 855, “Subsequent Events,” the Company’s management has evaluated subsequent events for potential recognition or disclosure through the date of the issuance of these condensed consolidated financial statements. No subsequent events were identified that would have required a change to the condensed consolidated financial statements or disclosure in the notes to the condensed consolidated financial statements.
Accounting Pronouncements Recently Adopted or Issued	The following reflect recent accounting pronouncements that have been adopted or are pending adoption by the Company. Adopted Accounting Pronouncements Fair Value Measurement (Topic 820) - In June 2022, the FASB issued ASU 2022-03, Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. The guidance in the ASU clarifies that a contractual restriction on the sale of an equity security is not considered part of the unit of account on the equity security and, therefore, is not considered in measuring fair value. The ASU also requires additional disclosures about the restriction. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within those fiscal years. The Company evaluated the accounting and disclosure requirements of this update and they did not have a material effect on the consolidated financial statements. Issued Accounting Pronouncements Pending Adoption Business Combinations (Topic 805) - In August 2023, the FASB issued ASU 2023-05, Business Combinations—Joint Venture (JV) Formations: Recognition and Initial Measurement. The guidance requires newly-formed JVs to apply a new basis of accounting to all of its contributed net assets, which results in the JV initially measuring its contributed net assets under ASC 805-20, Business Combinations. The new guidance would be applied prospectively and is effective for all newly-formed joint venture entities with a formation date on or after January 1, 2025, with early adoption permitted. The Company is evaluating the accounting and disclosure requirements of this update and the impact of adopting the new guidance on the consolidated financial statements. Segment Reporting – Improvements to Reportable Segment Disclosures (Topic 280) – In November 2023, the FASB issued ASU 2023-07 to enhance disclosures about significant segment expenses for public entities reporting segment information under Topic 280. It requires that a public entity disclose, on an annual and interim basis, significant expense categories for each reportable segment. Significant expense categories are derived from expenses that are 1) regularly reported to an entity’s chief operating decision-maker ("CODM"), and 2) included in a segment’s reported measure of profit or loss. The disclosures should include an amount for "other segment items," reflecting the difference between 1) segment revenue less significant segment expenses, and 2) the reportable segment’s profit or loss measures. It requires that a public entity disclose the title and position of the CODM and how the CODM uses the reported measure of profit or loss to assess segment performance and to allocate resources. Further it clarifies that entities with a single reportable segment must disclose both new and existing segment reporting requirements. The amendments are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Entities must adopt the guidance on a retrospective basis. The Company will include the new required disclosures upon adoption and has concluded they will not have a material effect on the consolidated financial statements. Income Taxes – Improvements to Income Tax Disclosures (Topic 740) – In December 2023, the FASB issued ASU 2023-09 to provide additional transparency into an entity’s income tax disclosures primarily related to the rate reconciliation and income taxes paid information. The standard requires that public business entities disclose, on an annual basis, specific categories in the rate reconciliation and additional information for reconciling items meeting a certain quantitative threshold. The amendments also require that entities disclose on an annual basis: 1) income taxes paid (net of refunds received) disaggregated by federal (national), state, and foreign taxes and 2) the income taxes paid (net of refunds received) disaggregated by individual jurisdictions exceeding 5% of total income taxes paid (net of refunds received). The amendments are effective for public business entities for annual periods beginning after December 15, 2024. The Company is evaluating the accounting and disclosure requirements of this update and the impact of adopting the new guidance on the consolidated financial statements.

Acquisition of a Business (Tabl

Acquisition of a Business (Tables)	9 Months Ended
	Sep. 30, 2024
Business Combinations [Abstract]
Summary of Fair Values of Assets Acquired and Liabilities Assumed as of Acquisition Date	The following table presents a summary of the fair values of assets acquired and liabilities assumed as of the acquisition date: Assets Cash and cash equivalents $ 39,731 Securities available-for-sale 239,602 Restricted stock 3,058 Loans 808,000 Allowance for credit losses ( 10,596 ) Premises and equipment 11,307 Operating lease right-of-use asset 3,813 Other intangible assets 17,250 Bank-owned life insurance 12,455 Deferred tax assets, net 14,848 Other assets 21,023 Total assets acquired 1,160,491 Liabilities Deposits 964,491 Federal Home Loan Bank advances 40,000 Securities sold under agreements to repurchase 455 Junior subordinated debentures 32,661 Operating lease liability 4,034 Accrued expenses and other liabilities 13,288 Total liabilities assumed 1,054,929 Net assets acquired $ 105,562 Consideration paid Common stock ( 5,932,323 shares issued at $ 18.09 per share) 107,017 Cash paid 31,897 Total consideration paid 138,914 Goodwill $ 33,352
Summary of Fair Value and Gross Contractual Amounts Receivable and Respective Expected Contractual Cash Flows	The following table presents the fair value and gross contractual amounts receivable of acquired non-credit-deteriorated loans from the Inland acquisition, and their respective expected contractual cash flows as of the acquisition date: Fair value $ 582,831 Gross contractual amounts receivable 699,918 Estimate of contractual cash flows not expected to be collected (1) 4,239 Estimate of contractual cash flows expected to be collected 695,679 (1) Includes interest payments not expected to be collected due to loan prepayments as well as principal and interest payments not expected to be collected due to customer default.
Summary of Pro Forma Information for Results of Operations	The following table provides the unaudited pro forma information for the results of operations for the nine months ended September 30, 2023, as if the acquisition had occurred on January 1, 2023. The pro forma results combine the historical results of Inland into the Company’s Consolidated Statements of Operations, including the impact of certain acquisition accounting adjustments, which includes loan discount accretion, intangible assets amortization, deposit premium accretion, fixed assets amortization, and borrowing discount amortization. The pro forma results have been prepared for comparative purposes only and are not necessarily indicative of the results that would have been obtained had the acquisition actually occurred on January 1, 2023. No assumptions have been applied to the pro forma results of operations regarding possible revenue enhancements, provision for credit losses, expense efficiencies or asset dispositions. Recognized acquisition-related expenses and other adjustments related to the timing of expenses, are included in net income in the following table: For the Nine Months Ended September 30, 2023 Total revenues (net interest income and non-interest income) $ 310,507 Net income $ 82,424 Earnings per share—basic $ 1.92 Earnings per share—diluted $ 1.90

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Summary of Amortized Cost and Fair Values of Securities Available-for-sale, and Held to Maturity	The following tables summarize the amortized cost and fair values of securities available-for-sale and securities held-to-maturity as of the dates shown and the corresponding amounts of gross unrealized gains and losses: September 30, 2024 Amortized Gross Gross Fair Available-for-sale U.S. Treasury Notes $ 42,740 $ 63 $ ( 291 ) $ 42,512 U.S. Government agencies 163,197 124 ( 12,782 ) 150,539 Obligations of states, municipalities, and 85,185 532 ( 3,434 ) 82,283 Residential mortgage-backed securities Agency 882,382 8,766 ( 78,361 ) 812,787 Non-agency 146,384 102 ( 18,156 ) 128,330 Commercial mortgage-backed securities Agency 258,543 891 ( 27,265 ) 232,169 Corporate securities 40,637 3 ( 2,563 ) 38,077 Asset-backed securities 16,351 7 ( 947 ) 15,411 Total $ 1,635,419 $ 10,488 $ ( 143,799 ) $ 1,502,108 September 30, 2024 Amortized Gross Gross Fair Held-to-maturity Obligations of states, municipalities, and $ 605 $ — $ ( 2 ) $ 603 Total $ 605 $ — $ ( 2 ) $ 603 December 31, 2023 Amortized Gross Gross Fair Available-for-sale U.S. Treasury Notes $ 116,398 $ 61 $ ( 1,025 ) $ 115,434 U.S. Government agencies 147,062 37 ( 16,404 ) 130,695 Obligations of states, municipalities, and 86,022 396 ( 4,143 ) 82,275 Residential mortgage-backed securities Agency 786,970 4,247 ( 95,414 ) 695,803 Non-agency 122,359 — ( 22,099 ) 100,260 Commercial mortgage-backed securities Agency 181,452 — ( 34,248 ) 147,204 Corporate securities 40,681 — ( 4,510 ) 36,171 Asset-backed securities 35,857 2 ( 1,221 ) 34,638 Total $ 1,516,801 $ 4,743 $ ( 179,064 ) $ 1,342,480 December 31, 2023 Amortized Gross Gross Fair Held-to-maturity Obligations of states, municipalities, and political $ 1,157 $ — $ ( 8 ) $ 1,149 Total $ 1,157 $ — $ ( 8 ) $ 1,149
Summary of Gross Unrealized Losses and Fair Values, Aggregated by Investment Category and Length of Individual Securities Continuous Unrealized Loss Position Available-for-sale and Held to Maturity	Gross unrealized losses and fair values, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of September 30, 2024 and December 31, 2023, are summarized as follows: Less than 12 Months 12 Months or Longer Total September 30, 2024 Number of Fair Unrealized Fair Unrealized Fair Unrealized Available-for-sale U.S. Treasury Notes 6 $ — $ — $ 32,646 $ ( 291 ) $ 32,646 $ ( 291 ) U.S. Government agencies 17 — — 122,805 ( 12,782 ) 122,805 ( 12,782 ) Obligations of states, 53 2,677 ( 6 ) 52,003 ( 3,428 ) 54,680 ( 3,434 ) Residential mortgage-backed Agency 101 20,016 ( 146 ) 516,354 ( 78,215 ) 536,370 ( 78,361 ) Non-agency 20 18,406 ( 79 ) 96,546 ( 18,077 ) 114,952 ( 18,156 ) Commercial mortgage-backed Agency 49 23,077 ( 138 ) 147,021 ( 27,127 ) 170,098 ( 27,265 ) Corporate securities 20 1,455 ( 37 ) 35,619 ( 2,526 ) 37,074 ( 2,563 ) Asset-backed securities 1 — — 6,073 ( 947 ) 6,073 ( 947 ) Total 267 $ 65,631 $ ( 406 ) $ 1,009,067 $ ( 143,393 ) $ 1,074,698 $ ( 143,799 ) Held-to-maturity Obligations of states, 1 $ — $ — $ 603 $ ( 2 ) $ 603 $ ( 2 ) Total 1 $ — $ — $ 603 $ ( 2 ) $ 603 $ ( 2 ) Less than 12 Months 12 Months or Longer Total December 31, 2023 Number of Fair Unrealized Fair Unrealized Fair Unrealized Available-for-sale U.S. Treasury Notes 7 $ 5,018 $ ( 4 ) $ 31,843 $ ( 1,021 ) $ 36,861 $ ( 1,025 ) U.S. Government agencies 18 535 ( 9 ) 119,109 ( 16,395 ) 119,644 ( 16,404 ) Obligations of states, 61 12,267 ( 156 ) 49,617 ( 3,987 ) 61,884 ( 4,143 ) Residential mortgage-backed securities Agency 102 8,332 ( 49 ) 543,648 ( 95,365 ) 551,980 ( 95,414 ) Non-agency 20 636 — 99,624 ( 22,099 ) 100,260 ( 22,099 ) Commercial mortgage-backed Agency 48 6,765 ( 1,517 ) 140,439 ( 32,731 ) 147,204 ( 34,248 ) Corporate securities 21 — — 36,171 ( 4,510 ) 36,171 ( 4,510 ) Asset-backed securities 6 — — 25,653 ( 1,221 ) 25,653 ( 1,221 ) Total 283 $ 33,553 $ ( 1,735 ) $ 1,046,104 $ ( 177,329 ) $ 1,079,657 $ ( 179,064 ) Held-to-maturity Obligations of states, 2 $ — $ — $ 1,149 $ ( 8 ) $ 1,149 $ ( 8 ) Total 2 $ — $ — $ 1,149 $ ( 8 ) $ 1,149 $ ( 8 )
Schedule of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity	At September 30, 2024, the amortized cost and fair value of debt securities are shown by contractual maturity. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately. Amortized Fair Available-for-sale Due in one year or less $ 54,931 $ 54,139 Due from one to five years 92,138 88,523 Due from five to ten years 157,619 146,197 Due after ten years 43,422 39,963 Mortgage-backed securities 1,287,309 1,173,286 Total $ 1,635,419 $ 1,502,108 Held-to-maturity Due in one year or less $ 605 $ 603 Total $ 605 $ 603

Loan and Lease Receivables an_2

Loan and Lease Receivables and Allowance for Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2024
Receivables [Abstract]
Schedule of Outstanding Loan and Lease Receivables	Outstanding loan and lease receivables as of the dates shown were categorized as follows: September 30, December 31, 2024 2023 Commercial real estate $ 2,359,354 $ 2,317,289 Residential real estate 709,612 718,733 Construction, land development, and other land 501,181 528,275 Commercial and industrial 2,586,890 2,444,405 Installment and other 3,912 3,138 Lease financing receivables 705,110 659,686 Total loans and leases 6,866,059 6,671,526 Net unamortized deferred fees and costs 7,118 6,600 Initial direct costs 6,269 6,180 Allowance for credit losses - loans and leases ( 98,860 ) ( 101,686 ) Net loans and leases $ 6,780,586 $ 6,582,620 September 30, December 31, 2024 2023 Lease financing receivables Net minimum lease payments $ 676,240 $ 644,507 Unguaranteed residual values 115,439 92,127 Unearned income ( 86,569 ) ( 76,948 ) Total lease financing receivables 705,110 659,686 Initial direct costs 6,269 6,180 Lease financial receivables before allowance for $ 711,379 $ 665,866
Summary of Minimum Annual Lease Payments for Lease Financing Receivables	The minimum annual lease payments for lease financing receivables as of September 30, 2024 are summarized as follows: Minimum Lease 2024 $ 56,032 2025 232,899 2026 183,571 2027 121,473 2028 63,854 Thereafter 18,411 Total $ 676,240
Summary of Balances for Each Respective Loan and Lease Category	The following tables summarize the balances for each respective loan and lease category as of September 30, 2024 and December 31, 2023: September 30, 2024 Originated Purchased Credit Deteriorated Acquired Total Commercial real estate $ 2,040,072 $ 95,240 $ 227,035 $ 2,362,347 Residential real estate 497,034 31,362 181,976 710,372 Construction, land development, and other land 415,636 4 84,172 499,812 Commercial and industrial 2,476,177 14,526 100,852 2,591,555 Installment and other 3,839 110 32 3,981 Lease financing receivables 711,233 — 146 711,379 Total loans and leases $ 6,143,991 $ 141,242 $ 594,213 $ 6,879,446 December 31, 2023 Originated Purchased Credit Deteriorated Acquired Total Commercial real estate $ 1,907,029 $ 137,807 $ 275,476 $ 2,320,312 Residential real estate 465,133 42,510 211,887 719,530 Construction, land development, and other land 415,162 25,331 86,344 526,837 Commercial and industrial 2,311,563 19,460 117,538 2,448,561 Installment and other 2,919 125 156 3,200 Lease financing receivables 665,239 — 627 665,866 Total loans and leases $ 5,767,045 $ 225,233 $ 692,028 $ 6,684,306
Summary of Outstanding Balance and Carrying Amount of All Acquired Impaired Loans	The unpaid principal balance and carrying amount of PCD loans excluding an allowance for credit losses - loans and leases o f $ 4.9 million and $ 10.0 milli on at September 30, 2024 and December 31, 2023, respectively, were as follows: September 30, 2024 December 31, 2023 Unpaid Carrying Unpaid Carrying Commercial real estate $ 138,363 $ 95,240 $ 185,007 $ 137,807 Residential real estate 75,970 31,362 88,036 42,510 Construction, land development, and other land 6,673 4 32,140 25,331 Commercial and industrial 19,757 14,526 21,870 19,460 Installment and other 774 110 789 125 Total purchased credit deteriorated loans $ 241,537 $ 141,242 $ 327,842 $ 225,233
Summary of Reconciliation of Acquired Inland Pcd Loans Between Purchase Price and Par Value at Acquisition	The following table is a reconciliation of acquired Inland PCD loans between their purchase price and their par value at the time of the acquisition. Refer to Note 3—Acquisition of a Business for further information. Fair value of loans at acquisition $ 214,573 Allowance for credit losses - loans and leases, at acquisition 10,596 Non-credit discount/premium at acquisition 17,909 Par value of acquired PCD loans at acquisition $ 243,078
Allowance for Credit Losses	The following table summarize the balance and activity within the allowance for credit losses - loans and leases, the components of the allowance for credit losses - loans and leases by loans and leases individually and collectively evaluated for impairment, and corresponding loan and lease balances by type for the three and nine months ended September 30, 2024 are as follows: September 30, 2024 Commercial Residential Construction, Commercial Installment Lease Total Allowance for credit losses - Three months ended Beginning balance $ 27,852 $ 3,023 $ 2,723 $ 57,584 $ 30 $ 8,518 $ 99,730 Provision/(recapture) 1,210 ( 121 ) ( 115 ) 6,286 16 321 7,597 Charge-offs ( 1,615 ) — — ( 6,948 ) — ( 496 ) ( 9,059 ) Recoveries 193 3 — 313 — 83 592 Ending balance $ 27,640 $ 2,905 $ 2,608 $ 57,235 $ 46 $ 8,426 $ 98,860 Nine months ended Beginning balance $ 33,237 $ 3,495 $ 2,906 $ 53,782 $ 36 $ 8,230 $ 101,686 Provision/(recapture) ( 1,592 ) ( 595 ) ( 298 ) 22,683 10 1,158 21,366 Charge-offs ( 5,113 ) — — ( 20,097 ) — ( 1,549 ) ( 26,759 ) Recoveries 1,108 5 — 867 — 587 2,567 Ending balance $ 27,640 $ 2,905 $ 2,608 $ 57,235 $ 46 $ 8,426 $ 98,860 Ending balance: Individually evaluated $ 6,547 $ 82 $ — $ 18,364 $ — $ — $ 24,993 Collectively evaluated 21,093 2,823 2,608 38,871 46 8,426 73,867 Total allowance for credit $ 27,640 $ 2,905 $ 2,608 $ 57,235 $ 46 $ 8,426 $ 98,860 Loans and leases Individually evaluated for $ 34,260 $ 3,591 $ — $ 50,627 $ — $ — $ 88,478 Collectively evaluated for 2,328,087 706,781 499,812 2,540,928 3,981 711,379 6,790,968 Total loans and leases $ 2,362,347 $ 710,372 $ 499,812 $ 2,591,555 $ 3,981 $ 711,379 $ 6,879,446 The following table summarize the balance and activity within the allowance for credit losses - loans and leases, the components of the allowance for credit losses - loans and leases by loans and leases individually and collectively evaluated for impairment, loans acquired with deteriorated credit quality, and corresponding loan and lease balances by type for the three and nine months ended September 30, 2023: September 30, 2023 Commercial Residential Construction, Commercial Installment Lease Total Allowance for credit losses - Three months ended Beginning balance $ 26,377 $ 2,544 $ 1,935 $ 53,640 $ 43 $ 8,126 $ 92,665 Adjustment for acquired PCD 8,230 660 97 1,609 — — 10,596 Provision 1,614 941 1,168 3,329 4 809 7,865 Charge-offs ( 1,360 ) ( 12 ) — ( 4,200 ) ( 3 ) ( 604 ) ( 6,179 ) Recoveries 124 18 — 460 — 147 749 Ending balance $ 34,985 $ 4,151 $ 3,200 $ 54,838 $ 44 $ 8,478 $ 105,696 Nine months ended Beginning balance $ 26,061 $ 3,140 $ 3,134 $ 41,889 $ 24 $ 7,676 $ 81,924 Adjustment for acquired PCD 8,230 660 97 1,609 — — 10,596 Provision/(recapture) 4,854 290 ( 31 ) 17,293 19 1,619 24,044 Charge-offs ( 5,271 ) ( 21 ) — ( 8,087 ) ( 3 ) ( 1,370 ) ( 14,752 ) Recoveries 1,111 82 — 2,134 4 553 3,884 Ending balance $ 34,985 $ 4,151 $ 3,200 $ 54,838 $ 44 $ 8,478 $ 105,696 Ending balance: Individually evaluated $ 13,199 $ — $ — $ 15,135 $ — $ — $ 28,334 Collectively evaluated 21,786 4,151 3,200 39,703 44 8,478 77,362 Total allowance for credit $ 34,985 $ 4,151 $ 3,200 $ 54,838 $ 44 $ 8,478 $ 105,696 Loans and leases ending Individually evaluated for $ 67,596 $ — $ — $ 48,814 $ — $ — $ 116,410 Collectively evaluated for 2,221,164 722,032 523,008 2,385,511 3,246 641,932 6,496,893 Total loans and leases $ 2,288,760 $ 722,032 $ 523,008 $ 2,434,325 $ 3,246 $ 641,932 $ 6,613,303
Summary of Loans with Modified Terms	he following table presents loans to borrowers experiencing financial difficulty and with modified terms for the three and nine months ended September 30, 2024: Three Months Ended Term Modification Total Modified by Class % of Class of Loans and Leases Commercial real estate $ 3,877 $ 3,877 0.2 % Commercial and industrial 245 245 0.0 % Total loans and leases $ 4,122 $ 4,122 0.1 % Nine Months Ended Term Modification Total Modified by Class % of Class of Loans and Leases Commercial real estate $ 5,320 $ 5,320 0.2 % Commercial and industrial 2,298 2,298 0.1 % Total loans and leases $ 7,618 $ 7,618 0.1 % For the three months ended September 30, 2024, t The following table presents the amortized cost basis of loans that were both experiencing financial difficulty and modified during the three and nine months ended September 30, 2023, by type of modification: Three Months Ended Payment Delay Term Modification Combination Term Modification and Interest Rate Reduction Total Modified by Class % of Class of Loans and Leases Commercial and industrial $ — $ 25,136 $ — $ 25,136 1.1 % Total modified loans $ — $ 25,136 $ — $ 25,136 0.4 % Nine Months Ended Payment Delay Term Modification Combination Term Modification and Interest Rate Reduction Total Modified by Class % of Class of Loans and Leases Commercial and industrial $ 383 $ 62,394 $ 374 $ 63,151 2.6 % Total modified loans $ 383 $ 62,394 $ 374 $ 63,151 1.0 %
Summary Of Collateral Dependent Loans And Leases	The following table presents the amortized cost basis of collateral-dependent loans and leases, which are individually evaluated to determine expected credit losses as of September 30, 2024 and December 31, 2023: September 30, 2024 Commercial Construction Non-owner Occupied Commercial Owner-Occupied Commercial Multi-Family Single Family Residence (1st Lien) Single Family Residence (2nd Lien) Business Assets Other Assets Total Commercial real estate $ — $ 6,775 $ 27,485 $ — $ — $ — $ — $ — $ 34,260 Residential real estate — — — 2,221 790 579 — — 3,590 Commercial and industrial — — — — — — 38,578 1,661 40,239 Total $ — $ 6,775 $ 27,485 $ 2,221 $ 790 $ 579 $ 38,578 $ 1,661 $ 78,089 December 31, 2023 Commercial Construction Non-owner Occupied Commercial Owner-Occupied Commercial Multi-Family Single Family Residence (1st Lien) Single Family Residence (2nd Lien) Business Assets Other Assets Total Commercial real estate $ — $ 28,767 $ 35,572 $ — $ — $ — $ — $ — $ 64,339 Residential real estate — — — 2,793 800 — — — 3,593 Construction, land 813 — — — — — — — 813 Commercial and industrial — — — — — — 44,749 — 44,749 Total $ 813 $ 28,767 $ 35,572 $ 2,793 $ 800 $ — $ 44,749 $ — $ 113,494
Summary of Risk Rating Categories of Loans and Leases Considered for Inclusion in Allowance for Loan and Lease Losses Calculation	The following tables summarize the risk rating categories of the loans and leases considered for inclusion in the allowance for credit losses - loans and leases calculation, as of September 30, 2024 and December 31, 2023: Term loans amortized cost by origination year Revolving Total September 30, 2024 2024 2023 2022 2021 2020 Prior Loans Loans Commercial Real Estate Pass $ 234,817 $ 240,042 $ 412,993 $ 465,184 $ 219,570 $ 469,298 $ 15,414 $ 2,057,318 Watch 2,389 39,813 37,636 41,665 31,925 66,246 — 219,674 Special Mention — — 4,330 6,084 2,548 27,329 — 40,291 Substandard — 1,590 3,747 8,612 836 30,279 — 45,064 Total $ 237,206 $ 281,445 $ 458,706 $ 521,545 $ 254,879 $ 593,152 $ 15,414 $ 2,362,347 Gross charge-offs for the nine months ended September 30, 2024 $ — $ 1,424 $ 295 $ 187 $ 718 $ 2,489 $ — $ 5,113 Residential Real Estate Pass $ 30,218 $ 48,700 $ 130,936 $ 117,898 $ 50,426 $ 233,043 $ 60,491 $ 671,712 Watch — — 2,609 595 13,835 11,166 1,082 29,287 Special Mention — — — — 3,732 — — 3,732 Substandard — 579 2,249 100 — 1,700 1,013 5,641 Total $ 30,218 $ 49,279 $ 135,794 $ 118,593 $ 67,993 $ 245,909 $ 62,586 $ 710,372 Gross charge-offs for the nine months ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — Construction, Land Development, Pass $ 18,408 $ 157,084 $ 143,776 $ 97,798 $ 37,236 $ 2,852 $ 345 $ 457,499 Watch — 4,765 4,387 15,645 — 3,081 — 27,878 Special Mention — 1,391 1,559 11,485 — — — 14,435 Substandard — — — — — — — — Total $ 18,408 $ 163,240 $ 149,722 $ 124,928 $ 37,236 $ 5,933 $ 345 $ 499,812 Gross charge-offs for the nine months ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — Commercial & Industrial Pass $ 281,416 $ 423,375 $ 451,891 $ 251,322 $ 89,779 $ 181,871 $ 518,089 $ 2,197,743 Watch 2,196 68,233 36,815 30,408 1,842 26,717 81,386 247,597 Special Mention — 319 10,334 25,073 3,546 11,001 23,931 74,204 Substandard $ 749 $ 7,584 $ 26,625 $ 8,888 $ 3,868 $ 15,547 $ 8,750 72,011 Total $ 284,361 $ 499,511 $ 525,665 $ 315,691 $ 99,035 $ 235,136 $ 632,156 $ 2,591,555 Gross charge-offs for the nine months ended September 30, 2024 $ — $ 1,534 $ 4,377 $ 1,538 $ 1,264 $ 11,384 $ — $ 20,097 Installment and Other Pass $ 670 $ 342 $ 89 $ 39 $ 4 $ 388 $ 2,425 $ 3,957 Watch — — — — — — — — Special Mention — — — — — — 1 1 Substandard — — — 23 — — — 23 Total $ 670 $ 342 $ 89 $ 62 $ 4 $ 388 $ 2,426 $ 3,981 Gross charge-offs for the nine months ended September 30, 2024 $ — $ — $ — $ — $ — $ — $ — $ — Lease Financing Receivables Pass $ 222,254 $ 259,993 $ 148,903 $ 59,646 $ 16,351 $ 483 $ — $ 707,630 Watch 295 734 48 — 8 — — 1,085 Special Mention — — — — 160 — — 160 Substandard — 613 1,099 791 — 1 — 2,504 Total $ 222,549 $ 261,340 $ 150,050 $ 60,437 $ 16,519 $ 484 $ — $ 711,379 Gross charge-offs for the nine months ended September 30, 2024 $ — $ 434 $ 560 $ 463 $ 58 $ 34 $ — $ 1,549 Total Loans and Leases Pass $ 787,783 $ 1,129,536 $ 1,288,588 $ 991,887 $ 413,366 $ 887,935 $ 596,764 $ 6,095,859 Watch 4,880 113,545 81,495 88,313 47,610 107,210 82,468 525,521 Special Mention — 1,710 16,223 42,642 9,986 38,330 23,932 132,823 Substandard 749 10,366 33,720 18,414 4,704 47,527 9,763 125,243 Total $ 793,412 $ 1,255,157 $ 1,420,026 $ 1,141,256 $ 475,666 $ 1,081,002 $ 712,927 $ 6,879,446 Gross charge-offs for the nine months ended September 30, 2024 $ — $ 3,392 $ 5,232 $ 2,188 $ 2,040 $ 13,907 $ — $ 26,759 Term loans amortized cost by origination year Revolving Total December 31, 2023 2023 2022 2021 2020 2019 Prior Loans Loans Commercial Real Estate Pass $ 247,856 $ 452,127 $ 516,624 $ 229,053 $ 143,283 $ 388,872 $ 28,360 $ 2,006,175 Watch 12,501 22,094 26,408 46,713 20,364 68,003 — 196,083 Special Mention — 799 10,752 2,618 12,751 25,790 — 52,710 Substandard — 2,888 5,841 1,771 7,483 46,532 829 65,344 Total $ 260,357 $ 477,908 $ 559,625 $ 280,155 $ 183,881 $ 529,197 $ 29,189 $ 2,320,312 Gross charge-offs, year ended $ — $ 193 $ 60 $ 1,511 $ 4,054 $ 3,911 $ — $ 9,729 Residential Real Estate Pass $ 55,178 $ 135,477 $ 104,005 $ 54,651 $ 37,806 $ 225,593 $ 57,865 $ 670,575 Watch — 4,811 — 17,417 7,167 8,708 1,597 39,700 Special Mention — — — 3,594 127 1 413 4,135 Substandard — — 107 189 349 3,523 952 5,120 Total $ 55,178 $ 140,288 $ 104,112 $ 75,851 $ 45,449 $ 237,825 $ 60,827 $ 719,530 Gross charge-offs, year ended $ — $ — $ — $ — $ — $ 21 $ — $ 21 Construction, Land Development, Pass $ 82,449 $ 145,174 $ 184,544 $ 35,466 $ 9,772 $ 1,429 $ 174 $ 459,008 Watch 1,392 13,990 21,313 18,716 3,125 — — 58,536 Special Mention — — 9,279 — — — — 9,279 Substandard — — — — — 14 — 14 Total $ 83,841 $ 159,164 $ 215,136 $ 54,182 $ 12,897 $ 1,443 $ 174 $ 526,837 Gross charge-offs, year ended $ — $ — $ — $ — $ — $ — $ — $ — Commercial & Industrial Pass $ 475,720 $ 514,902 $ 288,392 $ 109,430 $ 73,059 $ 147,168 $ 524,348 $ 2,133,019 Watch 41,027 33,080 50,407 1,385 6,951 18,180 39,531 190,561 Special Mention — 6,164 10,595 2,631 1,112 6,643 36,354 63,499 Substandard — 7,332 6,067 6,431 10,116 18,381 13,155 61,482 Total $ 516,747 $ 561,478 $ 355,461 $ 119,877 $ 91,238 $ 190,372 $ 613,388 $ 2,448,561 Gross charge-offs, year ended $ 1,518 $ 1,938 $ 5,372 $ 4,451 $ 1,087 $ 1,045 $ — $ 15,411 Installment and Other Pass $ 564 $ 132 $ 79 $ 133 $ 28 $ 424 $ 1,814 $ 3,174 Watch — — 25 — — 1 — 26 Special Mention — — — — — — — — Substandard — — — — — — — — Total $ 564 $ 132 $ 104 $ 133 $ 28 $ 425 $ 1,814 $ 3,200 Gross charge-offs, year ended $ — $ — $ — $ — $ — $ 3 $ — $ 3 Lease Financing Receivables Pass $ 327,099 $ 207,640 $ 93,242 $ 29,343 $ 5,443 $ 856 $ — $ 663,623 Watch — 67 1,008 16 — — — 1,091 Special Mention — — — 179 101 36 — 316 Substandard 259 138 384 55 — — — 836 Total $ 327,358 $ 207,845 $ 94,634 $ 29,593 $ 5,544 $ 892 $ — $ 665,866 Gross charge-offs, year ended $ 734 $ 886 $ 549 $ 139 $ 75 $ 54 $ — $ 2,437 Total Loans and Leases Pass $ 1,188,866 $ 1,455,452 $ 1,186,886 $ 458,076 $ 269,391 $ 764,342 $ 612,561 $ 5,935,574 Watch 54,920 74,042 99,161 84,247 37,607 94,892 41,128 485,997 Special Mention — 6,963 30,626 9,022 14,091 32,470 36,767 129,939 Substandard 259 10,358 12,399 8,446 17,948 68,450 14,936 132,796 Total $ 1,244,045 $ 1,546,815 $ 1,329,072 $ 559,791 $ 339,037 $ 960,154 $ 705,392 $ 6,684,306 Gross charge-offs, year ended $ 2,252 $ 3,017 $ 5,981 $ 6,101 $ 5,216 $ 5,034 $ — $ 27,601 At
Summary of Contractual Delinquency Information	The following tables summarize contractual delinquency information of the loans and leases considered for inclusion in the allowance for credit losses - loans and leases calculation at September 30, 2024 and December 31, 2023: September 30, 2024 2024 2023 2022 2021 2020 Prior Revolving Total Commercial Real Estate Current $ 237,081 $ 279,855 $ 455,422 $ 517,237 $ 254,618 $ 568,823 $ 15,414 $ 2,328,450 30-59 Days Past Due 125 — — — — 2,920 — 3,045 60-89 Days Past Due — — 636 — — 914 — 1,550 Greater than 90 Accruing — — — — — — — — Non-accrual — 1,590 2,648 4,308 261 20,495 — 29,302 Total Past Due 125 1,590 3,284 4,308 261 24,329 — 33,897 Total $ 237,206 $ 281,445 $ 458,706 $ 521,545 $ 254,879 $ 593,152 $ 15,414 $ 2,362,347 Residential Real Estate Current $ 30,218 $ 49,279 $ 133,545 $ 118,493 $ 67,993 $ 244,299 $ 61,218 $ 705,045 30-59 Days Past Due — — — — — 44 355 399 60-89 Days Past Due — — — — — — — — Greater than 90 Accruing — — — — — — — — Non-accrual — — 2,249 100 — 1,566 1,013 4,928 Total Past Due — — 2,249 100 — 1,610 1,368 5,327 Total $ 30,218 $ 49,279 $ 135,794 $ 118,593 $ 67,993 $ 245,909 $ 62,586 $ 710,372 Construction, Land Development, Current $ 18,408 $ 163,240 $ 149,722 $ 124,928 $ 37,236 $ 5,933 $ 345 $ 499,812 30-59 Days Past Due — — — — — — — — 60-89 Days Past Due — — — — — — — — Greater than 90 Accruing — — — — — — — — Non-accrual — — — — — — — — Total Past Due — — — — — — — — Total $ 18,408 $ 163,240 $ 149,722 $ 124,928 $ 37,236 $ 5,933 $ 345 $ 499,812 Commercial & Industrial Current $ 283,611 $ 491,992 $ 512,755 $ 313,279 $ 95,712 $ 219,696 $ 628,404 $ 2,545,449 30-59 Days Past Due — — 158 — — — 359 517 60-89 Days Past Due 658 370 1,753 256 628 7,689 479 11,833 Greater than 90 Accruing — — — — — — — — Non-accrual 92 7,149 10,999 2,156 2,695 7,751 2,914 33,756 Total Past Due 750 7,519 12,910 2,412 3,323 15,440 3,752 46,106 Total $ 284,361 $ 499,511 $ 525,665 $ 315,691 $ 99,035 $ 235,136 $ 632,156 $ 2,591,555 Installment and Other Current $ 670 $ 342 $ 89 $ 39 $ 4 $ 388 $ 2,426 $ 3,958 30-59 Days Past Due — — — — — — — — 60-89 Days Past Due — — — — — — — — Greater than 90 Accruing — — — — — — — — Non-accrual — — — 23 — — — 23 Total Past Due — — — 23 — — — 23 Total $ 670 $ 342 $ 89 $ 62 $ 4 $ 388 $ 2,426 $ 3,981 Lease Financing Receivables Current $ 220,256 $ 257,011 $ 146,932 $ 58,597 $ 16,238 $ 478 $ — $ 699,512 30-59 Days Past Due 1,724 2,118 889 341 120 5 — 5,197 60-89 Days Past Due 569 1,598 1,130 714 161 — — 4,172 Greater than 90 Accruing — — — — — — — — Non-accrual — 613 1,099 785 — 1 — 2,498 Total Past Due 2,293 4,329 3,118 1,840 281 6 — 11,867 Total $ 222,549 $ 261,340 $ 150,050 $ 60,437 $ 16,519 $ 484 $ — $ 711,379 Total Loans and Leases Current $ 790,244 $ 1,241,719 $ 1,398,465 $ 1,132,573 $ 471,801 $ 1,039,617 $ 707,807 $ 6,782,226 30-59 Days Past Due 1,849 2,118 1,047 341 120 2,969 714 9,158 60-89 Days Past Due 1,227 1,968 3,519 970 789 8,603 479 17,555 Greater than 90 Accruing — — — — — — — — Non-accrual 92 9,352 16,995 7,372 2,956 29,813 3,927 70,507 Total Past Due 3,168 13,438 21,561 8,683 3,865 41,385 5,120 97,220 Total $ 793,412 $ 1,255,157 $ 1,420,026 $ 1,141,256 $ 475,666 $ 1,081,002 $ 712,927 $ 6,879,446 Total non-accrual loans without an allowance included $ 6.5 million of commercial real estate loans, $ 3.0 million of residential real estate, and $ 3.3 million of commercial and industrial loans as of September 30, 2024 . The Company recognized $ 514,000 and $ 1.8 million of interest income on non-accrual loans and leases for the three and nine months ended September 30, 2024, respectively. December 31, 2023 2023 2022 2021 2020 2019 Prior Revolving Total Commercial Real Estate Current $ 259,998 $ 474,878 $ 558,236 $ 279,098 $ 178,729 $ 501,620 $ 29,189 $ 2,281,748 30-59 Days Past Due 359 648 638 74 3,176 484 — 5,379 60-89 Days Past Due — 826 — 286 — 1,208 — 2,320 Greater than 90 Accruing — — — — — — — — Non-accrual — 1,556 751 697 1,976 25,885 — 30,865 Total Past Due 359 3,030 1,389 1,057 5,152 27,577 — 38,564 Total $ 260,357 $ 477,908 $ 559,625 $ 280,155 $ 183,881 $ 529,197 $ 29,189 $ 2,320,312 Residential Real Estate Current $ 55,178 $ 136,448 $ 102,973 $ 75,125 $ 45,050 $ 230,102 $ 59,476 $ 704,352 30-59 Days Past Due — 3,840 1,032 537 29 4,122 399 9,959 60-89 Days Past Due — — — — 21 127 — 148 Greater than 90 Accruing — — — — — — — — Non-accrual — — 107 189 349 3,474 952 5,071 Total Past Due — 3,840 1,139 726 399 7,723 1,351 15,178 Total $ 55,178 $ 140,288 $ 104,112 $ 75,851 $ 45,449 $ 237,825 $ 60,827 $ 719,530 Construction, Land Development, Current $ 83,841 $ 156,815 $ 215,136 $ 54,182 $ 12,897 $ 1,443 $ 174 $ 524,488 30-59 Days Past Due — — — — — — — — 60-89 Days Past Due — 2,349 — — — — — 2,349 Greater than 90 Accruing — — — — — — — — Non-accrual — — — — — — — — Total Past Due — 2,349 — — — — — 2,349 Total $ 83,841 $ 159,164 $ 215,136 $ 54,182 $ 12,897 $ 1,443 $ 174 $ 526,837 Commercial & Industrial Current $ 516,747 $ 552,251 $ 351,534 $ 114,859 $ 83,780 $ 177,239 $ 611,766 $ 2,408,176 30-59 Days Past Due — 1,545 1,099 238 2,513 400 455 6,250 60-89 Days Past Due — 1,505 — 234 3,416 1,139 496 6,790 Greater than 90 Accruing — — — — — — — — Non-accrual — 6,177 2,828 4,546 1,529 11,594 671 27,345 Total Past Due — 9,227 3,927 5,018 7,458 13,133 1,622 40,385 Total $ 516,747 $ 561,478 $ 355,461 $ 119,877 $ 91,238 $ 190,372 $ 613,388 $ 2,448,561 Installment and Other Current $ 564 $ 132 $ 104 $ 133 $ 28 $ 425 $ 1,814 $ 3,200 30-59 Days Past Due — — — — — — — — 60-89 Days Past Due — — — — — — — — Greater than 90 Accruing — — — — — — — — Non-accrual — — — — — — — — Total Past Due — — — — — — — — Total $ 564 $ 132 $ 104 $ 133 $ 28 $ 425 $ 1,814 $ 3,200 Lease Financing Receivables Current $ 325,833 $ 206,800 $ 93,795 $ 29,292 $ 5,537 $ 889 $ — $ 662,146 30-59 Days Past Due 726 426 153 38 4 2 — 1,349 60-89 Days Past Due 540 481 302 218 3 1 — 1,545 Greater than 90 Accruing — — — — — — — — Non-accrual 259 138 384 45 — — — 826 Total Past Due 1,525 1,045 839 301 7 3 — 3,720 Total $ 327,358 $ 207,845 $ 94,634 $ 29,593 $ 5,544 $ 892 $ — $ 665,866 Total Loans and Leases Current $ 1,242,161 $ 1,527,324 $ 1,321,778 $ 552,689 $ 326,021 $ 911,718 $ 702,419 $ 6,584,110 30-59 Days Past Due 1,085 6,459 2,922 887 5,722 5,008 854 22,937 60-89 Days Past Due 540 5,161 302 738 3,440 2,475 496 13,152 Greater than 90 Accruing — — — — — — — — Non-accrual 259 7,871 4,070 5,477 3,854 40,953 1,623 64,107 Total Past Due 1,884 19,491 7,294 7,102 13,016 48,436 2,973 100,196 Total $ 1,244,045 $ 1,546,815 $ 1,329,072 $ 559,791 $ 339,037 $ 960,154 $ 705,392 $ 6,684,306
Summary of Change in Balance for Allowance for Credit Losses Unfunded Commitments	The following table presents the change in the balance of the allowance for credit losses - unfunded commitments as of September 30, 2024 and 2023: For the Three Months Ended For the Nine Months Ended September 30, September 30, 2024 2023 2024 2023 Beginning balance $ 2,555 $ 3,639 $ 3,636 $ 4,203 Provision/(recapture) for unfunded commitments ( 122 ) 937 ( 1,203 ) 373 Ending balance $ 2,433 $ 4,576 $ 2,433 $ 4,576
Schedule of Unpaid Principal Balance and Carrying Value for Acquired Non-Impaired Loans and Leases	The unpaid principal balance and carrying value for acquired non-credit deteriorated loans and leases, excluding an allowance for credit losses o f $ 3.8 million and $ 4.7 mil lion at September 30, 2024 and December 31, 2023, respectively, were as follows: September 30, 2024 December 31, 2023 Unpaid Carrying Unpaid Carrying Commercial real estate $ 233,775 $ 227,035 $ 284,819 $ 275,476 Residential real estate 195,134 181,976 227,392 211,887 Construction, land development, and other land 84,663 84,172 87,143 86,344 Commercial and industrial 105,482 100,852 123,540 117,538 Installment and other 39 32 170 156 Lease financing receivables 146 146 628 627 Total acquired non-credit-deteriorated $ 619,239 $ 594,213 $ 723,692 $ 692,028

Servicing Assets (Tables)

Servicing Assets (Tables)	9 Months Ended
	Sep. 30, 2024
Transfers and Servicing [Abstract]
Activity for Servicing Assets and Related Changes in Fair Value	Activity for servicing assets and the related changes in fair value for the three and nine months ended September 30, 2024 and 2023 was as follows: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Beginning balance $ 19,617 $ 21,715 $ 19,844 $ 19,172 Additions, net 1,511 1,674 4,455 4,426 Changes in fair value ( 2,183 ) ( 3,646 ) ( 5,354 ) ( 3,855 ) Ending balance $ 18,945 $ 19,743 $ 18,945 $ 19,743
Unpaid Principal Balances of Loans Serviced for Others	Loans serviced for others are not included in the Condensed Consolidated Statements of Financial Condition. The unpaid principal balances of these loans serviced for others as of September 30, 2024 and December 31, 2023 were as follows: September 30, December 31, 2024 2023 Loan portfolios serviced for: SBA guaranteed loans $ 1,514,175 $ 1,530,401 USDA guaranteed loans 188,337 197,942 Total $ 1,702,512 $ 1,728,343

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	9 Months Ended
	Sep. 30, 2024
Real Estate [Abstract]
Change in Other Real Estate Owned	The following table presents the change in OREO for the three and nine months ended September 30, 2024 and 2023: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Beginning balance $ 780 $ 2,265 $ 1,200 $ 4,717 Net additions to OREO 30 72 35 571 Proceeds from sales of OREO ( 260 ) ( 614 ) ( 740 ) ( 3,173 ) Gains (losses) on sales of OREO ( 18 ) ( 39 ) 37 ( 88 ) Valuation adjustments — ( 13 ) — ( 356 ) Ending balance $ 532 $ 1,671 $ 532 $ 1,671

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2024
Leases [Abstract]
Schedule of Operating Lease Right-of-use Asset and Liability	The following table summarizes the amount and balance sheet line item for our operating lease right-of-use asset and liability as of the periods indicated: Balance Sheet Line Item September 30, 2024 December 31, 2023 Operating lease right-of-use asset Accrued interest receivable and other assets $ 10,070 $ 12,474 Operating lease liability Accrued interest payable and other liabilities 11,361 14,268
Summary of Lease Costs and Company's Operating Leases	The following table presents components of total lease costs included as a component of occupancy expense on the Condensed Consolidated Statements of Operations for the following periods: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Operating lease cost $ 666 $ 770 $ 2,051 $ 2,014 Short-term lease cost 120 127 386 295 Variable lease cost 423 470 1,257 1,239 Less: Sublease income ( 131 ) ( 160 ) ( 391 ) ( 475 ) Total lease cost, net $ 1,078 $ 1,207 $ 3,303 $ 3,073
Schedule of Future Minimum Lease Payments for Operating Leases	The future minimum lease payments for operating leases, subsequent to September 30, 2024, as recorded on the Condensed Consolidated Statements of Financial Condition, are summarized as follows: Operating Lease 2024 $ 945 2025 3,395 2026 2,484 2027 1,576 2028 1,254 Thereafter 2,927 Total undiscounted lease payments 12,581 Less: Imputed interest ( 1,220 ) Net lease liabilities $ 11,361

Goodwill, Core Deposit Intang_2

Goodwill, Core Deposit Intangible and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Changes in Goodwill, Core Deposit Intangible Assets and Customer Relationship Intangible Assets	The following tables summarize the changes in the Company’s goodwill, core deposit intangible assets, and customer relationship intangible assets for the three and nine months ended September 30, 2024 and 2023: For the Three Months Ended September 30, 2024 2023 Goodwill Core Deposit Customer Relationship Goodwill Core Deposit Customer Relationship Beginning balance $ 181,705 $ 17,837 $ 1,246 $ 148,353 $ 6,110 $ 1,514 Additions — — — 33,352 17,250 — Amortization — ( 1,278 ) ( 67 ) — ( 1,484 ) ( 67 ) Ending balance $ 181,705 $ 16,559 $ 1,179 $ 181,705 $ 21,876 $ 1,447 Accumulated amortization N/A $ 56,157 $ 2,037 N/A $ 50,840 $ 1,769 Weighted average remaining N/A 7.7 years 4.4 years N/A 8.4 years 5.4 years For the Nine Months Ended September 30, 2024 2023 Goodwill Core Deposit Customer Relationship Goodwill Core Deposit Customer Relationship Beginning balance $ 181,705 $ 20,393 $ 1,380 $ 148,353 $ 8,886 $ 1,648 Additions — — — 33,352 17,250 — Amortization — ( 3,834 ) ( 201 ) — ( 4,260 ) ( 201 ) Ending balance $ 181,705 $ 16,559 $ 1,179 $ 181,705 $ 21,876 $ 1,447 Accumulated amortization N/A $ 56,157 $ 2,037 N/A $ 50,840 $ 1,769 Weighted average remaining N/A 7.7 years 4.4 years N/A 8.4 years 5.4 years The Company added additional goodwill and core deposit intangible assets in conjunction with the Inland acquisition. Please refer to Note 3 — Acquisition of a Business for further details.
Estimated Amortization Expense for Core Deposit Intangible and Customer Relationship Intangible Recognized	The following table presents the estimated amortization expense for core deposit intangible and customer relationship intangible assets remaining at September 30, 2024: Estimated 2024 $ 1,345 2025 4,473 2026 3,566 2027 2,676 2028 2,101 Thereafter 3,577 Total $ 17,738

Deposits (Tables)

Deposits (Tables)	9 Months Ended
	Sep. 30, 2024
Deposits [Abstract]
Composition of Deposits	The composition of deposits was as follows as of September 30, 2024 and December 31, 2023: September 30, December 31, 2024 2023 Non-interest-bearing demand deposits $ 1,729,908 $ 1,905,876 Interest-bearing checking accounts 749,721 577,609 Money market demand accounts 2,426,522 2,266,030 Other savings 489,618 542,532 Time deposits (below $250,000) 1,639,658 1,520,082 Time deposits ($250,000 and above) 462,460 364,870 Total deposits $ 7,497,887 $ 7,176,999
Schedule of Maturities of Time Deposits	At September 30, 2024, the scheduled maturities of time deposits were: Scheduled Maturities 2024 $ 638,936 2025 1,448,003 2026 8,622 2027 4,981 2028 1,121 Thereafter 455 Total $ 2,102,118

Other Borrowings (Tables)

Other Borrowings (Tables)	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Summary of Other Borrowings	The following is a summary of the Company’s other borrowings as of the dates presented: September 30, December 31, 2024 2023 Federal Home Loan Bank advances $ 470,000 $ 325,000 Securities sold under agreements to repurchase 35,453 40,607 Term loan 13,333 18,333 Line of credit — 11,250 Total $ 518,786 $ 395,190
Summary of Short-term Credit Lines Available for Use	The following table presents short-term credit lines available for use as of the dates presented: September 30, December 31, 2024 2023 Federal Home Loan Bank line $ 2,878,966 $ 2,781,747 Federal Reserve Bank of Chicago discount window line 780,977 866,490 Available federal funds lines 127,500 123,750

Subordinated Notes and Junior_2

Subordinated Notes and Junior Subordinated Debentures (Tables)	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Junior Subordinated Debentures by Issuance	At September 30, 2024 and December 31, 2023, the Company’s junior subordinated debentures by issuance were as follows: Aggregate Principal Amount Name of Trust Stated September 30, 2024 December 31, 2023 Contractual Rate September 30, 2024 Interest Rate Spread (1) Metropolitan Statutory Trust I March 17, 2034 $ 35,000 $ 35,000 7.99 % SOFR + spread adjustment + 2.79 % First Evanston Bancorp Trust I March 15, 2035 10,000 10,000 6.99 % SOFR + spread adjustment + 1.78 % AmeriMark Capital Trust I April 23, 2034 5,000 5,000 8.29 % SOFR + spread adjustment + 2.75 % Inland Bancorp Trust II September 15, 2035 10,000 10,000 6.81 % SOFR + spread adjustment + 1.60 % Inland Bancorp Trust III December 15, 2036 10,000 10,000 6.86 % SOFR + spread adjustment + 1.65 % Inland Bancorp Trust IV June 6, 2037 7,000 7,000 6.88 % SOFR + spread adjustment + 1.62 % Inland Bancorp Trust V September 15, 2037 10,000 10,000 6.63 % SOFR + spread adjustment + 1.42 % Total liability, at par 87,000 87,000 Discount ( 16,217 ) ( 16,548 ) Total liability, at carrying value $ 70,783 $ 70,452 (1) SOFR is three-month SOFR and the spread adjustment is 0.26161 %

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	9 Months Ended
	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Summary of Contract or Notional Amount of Outstanding Loan and Lease Commitments	The following table summarizes the contract or notional amount of outstanding loan and lease commitments at September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Fixed Rate Variable Rate Total Fixed Rate Variable Rate Total Commitments to extend credit $ 204,866 $ 1,845,018 $ 2,049,884 $ 269,325 $ 2,013,819 $ 2,283,144 Letters of credit 630 63,404 64,034 612 67,443 68,055 Total $ 205,496 $ 1,908,422 $ 2,113,918 $ 269,937 $ 2,081,262 $ 2,351,199

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	The following tables summarize the Company’s financial assets and liabilities that were measured at fair value on a recurring basis at September 30, 2024 and December 31, 2023: Fair Value Measurements Using September 30, 2024 Fair Value Level 1 Level 2 Level 3 Financial assets Securities available-for-sale U.S. Treasury Notes $ 42,512 $ 42,512 $ — $ — U.S. Government agencies 150,539 150,539 Obligations of states, municipalities, and political 82,283 — 82,283 — Mortgage-backed securities; residential Agency 812,787 — 812,787 — Non-Agency 128,330 — 128,330 — Mortgage-backed securities; commercial Agency 232,169 — 232,169 — Corporate securities 38,077 — 38,077 — Asset-backed securities 15,411 — 15,411 — Equity and other securities, at fair value Mutual funds 2,605 2,605 — — Equity securities 6,527 — 6,239 288 Servicing assets 18,945 — — 18,945 Derivative assets 40,620 — 40,620 — Financial liabilities Derivative liabilities 14,513 — 14,513 — Fair Value Measurements Using December 31, 2023 Fair Value Level 1 Level 2 Level 3 Financial assets Securities available-for-sale U.S. Treasury Notes $ 115,434 $ 115,434 $ — $ — U.S. Government agencies 130,695 — 130,695 — Obligations of states, municipalities, and political 82,275 — 82,275 Mortgage-backed securities; residential Agency 695,803 — 695,803 — Non-Agency 100,260 — 100,260 — Mortgage-backed securities; commercial Agency 147,204 — 147,204 — Corporate securities 36,171 — 36,171 — Asset-backed securities 34,638 — 34,638 — Equity and other securities, at fair value Mutual funds 2,554 2,554 — — Equity securities 6,189 — 5,908 281 Servicing assets 19,844 — — 19,844 Derivative assets 56,923 — 56,923 — Financial liabilities Derivative liabilities 19,345 — 19,345 —
Summary of Financial Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs	The following table presents additional information about financial assets measured at fair value on recurring basis for which the Company used significant unobservable inputs (Level 3): Nine Months Ended September 30, 2024 2023 2024 2023 Investment Securities Servicing Assets Balance, beginning of period $ 281 $ 666 $ 19,844 $ 19,172 Additions, net — — 4,455 4,426 Maturity — ( 400 ) — — Accretion of discount — 82 — — Change in fair value 7 ( 67 ) ( 5,354 ) ( 3,855 ) Balance, end of period $ 288 $ 281 $ 18,945 $ 19,743
Summary of Unobservable Inputs Used in the Fair Value Measurements on Recurring Basis	The following table presents additional information about the unobservable inputs used in the fair value measurements on recurring basis that were categorized within Level 3 of the fair value hierarchy as of September 30, 2024: Financial Instruments Valuation Technique Unobservable Inputs Range of Weighted Impact to Single issuer trust preferred Discounted cash flow Discount rate 7.9 % 7.9 % Decrease Servicing assets Discounted cash flow Prepayment speeds 0.0 % - 34.7 % 16.8 % Decrease Discount rate 6.1 % - 56.8 % 11.7 % Decrease Expected weighted 0.0 - 8.0 Years 3.6 Years Increase
Summary of Assets Measured at Fair Value on Non-Recurring Basis, Excluding Acquired Impaired Loans	Adjustments to fair value based on such non-recurring transactions generally result from the application of lower-of-cost-or-market accounting or write-downs of individual assets due to impairment. The following tables summarize the Company’s assets that were measured at fair value on a non-recurring basis, as of September 30, 2024 and December 31, 2023: Fair Value Measurements Using September 30, 2024 Fair Value Level 1 Level 2 Level 3 Non-recurring Individually evaluated loans Commercial real estate $ 27,713 $ — $ — $ 27,713 Residential real estate 3,509 — — 3,509 Commercial and industrial 32,263 — — 32,263 Assets held for sale 2,676 — — 2,676 Other real estate owned 532 — — 532 Fair Value Measurements Using December 31, 2023 Fair Value Level 1 Level 2 Level 3 Non-recurring Individually evaluated loans Commercial real estate $ 51,978 $ — $ — $ 51,978 Residential real estate 3,593 — — 3,593 Construction, land development, and other land 813 — — 813 Commercial and industrial 29,869 — — 29,869 Assets held for sale 4,484 — — 4,484 Other real estate owned 1,200 — — 1,200
Summary of Estimated Fair Values of Financial Instruments	The estimated fair values of financial instruments not carried at fair value and levels within the fair value hierarchy are as follows: September 30, December 31, Fair Value 2024 2023 Hierarchy Carrying Estimated Carrying Estimated Financial assets Cash and due from banks 1 $ 77,047 $ 77,047 $ 60,431 $ 60,431 Interest bearing deposits with other banks 2 375,549 375,549 165,705 165,705 Securities held-to-maturity 2 605 603 1,157 1,149 Restricted stock 2 22,743 22,743 16,304 16,304 Loans held for sale 3 19,955 20,672 18,005 19,136 Loans and lease receivables, net (less impaired 3 6,717,101 6,538,295 6,496,367 6,326,413 Accrued interest receivable 3 40,731 40,731 43,922 43,922 Financial liabilities Non-interest-bearing deposits 2 1,729,908 1,729,908 1,905,876 1,905,876 Interest-bearing deposits 2 5,767,979 5,770,206 5,271,123 5,268,926 Accrued interest payable 2 20,162 20,162 22,233 22,233 Federal Home Loan Bank advances 2 470,000 470,000 325,000 325,000 Securities sold under repurchase agreement 2 35,453 35,453 40,607 40,607 Term Loan 2 13,333 13,333 18,333 18,333 Line of credit 2 — — 11,250 11,250 Subordinated notes 2 73,997 73,802 73,866 76,063 Junior subordinated debentures 3 70,783 74,635 70,452 72,701

Derivative Instruments and He_2

Derivative Instruments and Hedge Activities (Tables)	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Derivative Financial Instruments and Classification on Consolidated Statements of Financial Condition	The following tables present the fair value of the Company’s derivative financial instruments and classification on the Condensed Consolidated Statements of Financial Condition as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Fair Value Fair Value Notional Other Other Notional Other Other Derivatives designated as hedging instruments Interest rate swaps designated as cash flow $ 650,000 $ 26,198 $ — $ 650,000 $ 37,475 $ — Derivatives not designated as hedging instruments Other interest rate derivatives 804,488 14,417 ( 14,485 ) 706,126 19,447 ( 19,345 ) Other credit derivatives 12,718 5 ( 28 ) 3,602 1 — Total derivatives $ 1,467,206 $ 40,620 $ ( 14,513 ) $ 1,359,728 $ 56,923 $ ( 19,345 )
Summary of Cash Flow Hedges	The following table reflects the cash flow hedges as of September 30, 2024: Notional amounts $ 650,000 Derivative assets fair value 26,198 Derivative liabilities fair value — Weighted average remaining maturity 2.2 years
Summary of Net Gains (Losses) Recorded in Accumulated Other Comprehensive Income (Loss) and Consolidated Statements of Operations Relating to Cash Flow Derivative Instruments	The following table reflects the net gains (losses) recorded in accumulated other comprehensive income (loss) and the Condensed Consolidated Statements of Operations relating to the cash flow derivative instruments for the nine months ended: September 30, 2024 September 30, 2023 Amount of Amount of Amount of Amount of Amount of Amount of Interest rate swaps $ 2,417 $ 14,192 $ — $ 13,357 $ 10,381 $ —
Summary of Other Interest Rate Derivatives	The following table reflects other interest rate derivatives as of September 30, 2024: Notional amounts $ 804,488 Derivative assets fair value 14,417 Derivative liabilities fair value 14,485 Weighted average pay rates 4.59 % Weighted average receive rates 5.41 % Weighted average remaining maturity 4.0 years
Summary of Amounts Included in Non-Interest Income in Consolidated Statements of Operations Relating to Derivative Instruments not Designated in Hedging Relationship	The following table reflects amounts included in non-interest income in the Condensed Consolidated Statements of Operations relating to derivative instruments that are not designated in a hedging relationship for the three and nine months ended September 30, 2024 and 2023: Three Months Ended Nine Months Ended September 30, September 30, 2024 2023 2024 2023 Other interest rate derivatives $ 263 $ 423 $ 170 $ 230 Other credit derivatives 7 — ( 47 ) — Total $ 270 $ 423 $ 123 $ 230
Summary of Company's Interest Rate Derivative and Offsetting Positions	The table below summarizes the Company’s interest rate derivatives and offsetting positions as of the periods indicated: September 30, 2024 December 31, 2023 Derivative Derivative Derivative Derivative Gross amounts recognized $ 40,620 $ ( 14,513 ) $ 56,923 $ ( 19,345 ) Less: Amounts offset in the Condensed Consolidated — — — — Net amount presented in the Condensed Consolidated $ 40,620 $ ( 14,513 ) $ 56,923 $ ( 19,345 ) Gross amounts not offset in the Condensed Consolidated Offsetting derivative positions ( 2,021 ) 2,021 ( 925 ) 925 Collateral posted ( 35,590 ) — ( 54,930 ) — Net credit exposure $ 3,009 $ ( 12,492 ) $ 1,068 $ ( 18,420 )

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2024
Restricted Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of Stock Compensation Expense	The following table summarizes restricted stock compensation expense for the nine months ended September 30, 2024 and 2023: Nine Months Ended September 30, 2024 2023 Total share-based compensation - restricted stock $ 5,582 $ 4,922 Income tax benefit 1,517 1,322 Unrecognized compensation expense 11,567 11,189 Weighted average remaining amortization period 1.9 years 2.1 years
Performance Share
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of fair value of the total stock return performance-based awards granted	The fair value of the total stock return performance-based awards granted in 2024 and 2023 were calculated based on a Monte Carlo simulation, using the following assumptions: Performance Based Grants 2024 2023 Risk-free interest rate 4.47 % 4.42 % Expected term (years) 2.85 years 2.85 years Expected stock price volatility 29.28 % - 33.68 % 38.11 % - 39.80 % Weighted average grant date fair value $ 20.18 $ 25.20
Omnibus Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of Changes in Restricted Shares	The following table discloses the changes in restricted shares for the nine months ended September 30, 2024: Omnibus Plan Number of Shares Weighted Average Beginning balance, January 1, 2024 627,271 $ 24.24 Granted 376,799 20.92 Incremental performance shares issued and vested 13,632 Vested ( 240,380 ) 22.57 Forfeited ( 15,148 ) 24.28 Ending balance outstanding at September 30, 2024 762,174 $ 23.04
BYB Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of Activity in shares Subjected to Options and Weighted Average Exercise Prices	The following table discloses the activity in shares subject to options and the weighted average exercise prices, in actual dollars, for the nine months ended September 30, 2024: BYB Plan Number of Shares Weighted Average Exercise Price Intrinsic Weighted Average Remaining Contractual Term (in Years) Beginning balance, January 1, 2024 768,564 $ 11.31 $ 9,413 1.5 Exercised ( 403,141 ) 11.18 $ 5,556 Expired — Ending balance outstanding at September 30, 2024 365,423 $ 11.46 $ 5,596 0.8 Exercisable at September 30, 2024 365,423 $ 11.46 $ 5,596 0.8
FEB Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of Activity in shares Subjected to Options and Weighted Average Exercise Prices	The following table discloses the activity in shares subject to options under the FEB Plan and the weighted average exercise prices, in actual dollars, for the nine months ended September 30, 2024: FEB Plan Number of Shares Weighted Average Exercise Price Intrinsic Weighted Average Remaining Contractual Term (in Years) Beginning balance, January 1, 2024 103,135 $ 11.95 $ 1,197 1.9 Exercised ( 36,805 ) $ 11.68 $ 554 Expired — Ending balance outstanding at September 30, 2024 66,330 $ 12.10 $ 973 1.6 Exercisable at September 30, 2024 66,330 $ 12.10 $ 973 1.6

Earnings per Share (Tables)

Earnings per Share (Tables)	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Schedule of Calculation of Basic and Diluted Earnings per Share	The following represent the calculation of basic and diluted earnings per share for the periods presented: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Net income $ 30,328 $ 28,222 $ 90,439 $ 78,274 Weighted-average common stock outstanding: Weighted-average common stock outstanding (basic) 43,516,006 43,025,927 43,379,038 39,027,450 Incremental shares 450,183 432,183 384,156 435,402 Weighted-average common stock outstanding 43,966,189 43,458,110 43,763,194 39,462,852 Basic earnings per common share $ 0.70 $ 0.66 $ 2.08 $ 2.01 Diluted earnings per common share $ 0.69 $ 0.65 $ 2.07 $ 1.98

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Summary of Preferred and Common Stock	A summary of the Company’s preferred and common stock at September 30, 2024 and December 31, 2023 is as follows: September 30, December 31, 2024 2023 Preferred stock Par value $ 0.01 $ 0.01 Shares authorized 25,000,000 25,000,000 Shares issued — — Shares outstanding — — Common stock, voting Par value $ 0.01 $ 0.01 Shares authorized 150,000,000 150,000,000 Shares issued 46,180,735 45,714,241 Shares outstanding 44,384,706 43,764,056 Treasury shares 1,796,029 1,950,185

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Consolidated Statements of Changes in Accumulated Other Comprehensive Income (Loss)	The following table summarizes the changes in accumulated other comprehensive income (loss) for the three and nine months ended September 30, 2024 and 2023: (dollars in thousands) Unrealized Gains Unrealized Losses Total Accumulated Balance, June 30, 2023 $ 36,433 $ ( 151,295 ) $ ( 114,862 ) Other comprehensive income (loss), net of tax 63 ( 27,360 ) ( 27,297 ) Balance, September 30, 2023 $ 36,496 $ ( 178,655 ) $ ( 142,159 ) Balance, January 1, 2023 $ 34,315 $ ( 151,865 ) $ ( 117,550 ) Other comprehensive income (loss), net of tax 2,181 ( 26,790 ) ( 24,609 ) Balance, September 30, 2023 $ 36,496 $ ( 178,655 ) $ ( 142,159 ) Balance, June 30, 2024 $ 27,672 $ ( 139,141 ) $ ( 111,469 ) Other comprehensive income (loss), net of tax ( 6,175 ) 38,966 32,791 Balance, September 30, 2024 $ 21,497 $ ( 100,175 ) $ ( 78,678 ) Balance, January 1, 2024 $ 30,131 $ ( 130,248 ) $ ( 100,117 ) Other comprehensive income (loss), net of tax ( 8,634 ) 30,073 21,439 Balance, September 30, 2024 $ 21,497 $ ( 100,175 ) $ ( 78,678 )

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Details)	9 Months Ended
	Sep. 30, 2024 Segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments	1

Acquisition of a Business - Add

Acquisition of a Business - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended			6 Months Ended	9 Months Ended
	Jul. 01, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2023	Jun. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Common stock, voting par value				$ 0.01				$ 0.01			$ 0.01
Goodwill		$ 148,353		$ 181,705	$ 181,705		$ 148,353	$ 181,705	$ 181,705	$ 181,705	$ 181,705	$ 148,353
Merger related expenses				0				0
Salaries and employee benefits				34,974	34,969			102,838	95,005
Other non-interest expense				$ 5,000	4,833			$ 15,668	14,667
Inland Bancorp, Inc.
Business Acquisition [Line Items]
Business acquisition date of agreement								Jul. 01, 2023
Right to receive common stock upon conversion	0.19
Common stock, voting par value	$ 0.01
Cash payment per share	$ 0.68
Consideration paid in cash	$ 21,200							$ 31,897
Common stock issued price per share	$ 18.09			$ 18.09				$ 18.09
Issuance of common shares	5,932,323							5,932,323
Value of common stock consideration	$ 107,300
Options to acquire common stock shares	288,200
Option to acquire common stock value	$ 424,000
Total merger consideration	138,900						$ 9,900	$ 138,914
Stock issuance costs	299,000
Goodwill	$ 33,400			$ 33,352				$ 33,352
Number of shares purchased		2,408,992	2,408,992
Business acquisition transaction completion Date						Jun. 30, 2023
Inland Bancorp, Inc. | Non-interest Expense
Business Acquisition [Line Items]
Core system conversion expenses					2,200				3,000
Acquisition advisory expenses					1,500				2,400
Salaries and employee benefits					2,300				2,400
Other non-interest expense					$ 301,000				$ 397,000

Acquisition of a Business - Sum

Acquisition of a Business - Summary of Fair Values of Assets Acquired and Liabilities Assumed as of Acquisition Date (Details) - USD ($) $ in Thousands		6 Months Ended	9 Months Ended
	Jul. 01, 2023	Jun. 30, 2023	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Consideration paid
Goodwill		$ 148,353	$ 181,705	$ 181,705	$ 181,705	$ 181,705	$ 148,353
Inland Bancorp, Inc.
Assets
Cash and cash equivalents			39,731
Securities available-for-sale			239,602
Restricted stock			3,058
Loans			808,000
Allowance for credit losses			(10,596)
Premises and equipment			11,307
Operating lease right-of-use asset			3,813
Other intangible assets			17,250
Bank-owned life insurance			12,455
Deferred tax assets, net			14,848
Other assets			21,023
Total assets acquired			1,160,491
Liabilities
Deposits			964,491
Federal Home Loan Bank advances			40,000
Securities sold under agreements to repurchase			455
Junior subordinated debentures			32,661
Operating lease liability			4,034
Accrued expenses and other liabilities			13,288
Total liabilities assumed			1,054,929
Net assets acquired			105,562
Consideration paid
Common stock (5,932,323 shares issued at $18.09 per share)			107,017
Cash paid	$ 21,200		31,897
Total consideration paid	138,900	$ 9,900	138,914
Goodwill	$ 33,400		$ 33,352

Acquisition of a Business - S_2

Acquisition of a Business - Summary of Fair Values of Assets Acquired and Liabilities Assumed as of Acquisition Date (Parenthetical) (Details) - Inland Bancorp, Inc. - $ / shares		9 Months Ended
	Jul. 01, 2023	Sep. 30, 2024
Business Acquisition [Line Items]
Stock issued (in shares)	5,932,323	5,932,323
Stock issued (in dollars per share)	$ 18.09	$ 18.09

Acquisition of a Business - S_3

Acquisition of a Business - Summary of Fair Value and Gross Contractual Amounts Receivable and Respective Expected Contractual Cash Flows (Detail) - Inland Bancorp, Inc. $ in Thousands	Sep. 30, 2024 USD ($)
Business Acquisition [Line Items]
Fair value	$ 582,831
Gross contractual amounts receivable	699,918
Estimate of contractual cash flows not expected to be collected	4,239	[1]
Estimate of contractual cash flows expected to be collected	$ 695,679
[1] (1) Includes interest payments not expected to be collected due to loan prepayments as well as principal and interest payments not expected to be collected due to customer default.

Acquisition of a Business - S_4

Acquisition of a Business - Summary of Pro Forma Information for Results of Operations (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($) $ / shares
Business Combinations [Abstract]
Total revenues (net interest income and non-interest income) | $	$ 310,507
Net income | $	$ 82,424
Earnings per share - basic | $ / shares	$ 1.92
Earnings per share - diluted | $ / shares	$ 1.9

Securities - Summary of Amortiz

Securities - Summary of Amortized Cost and Fair Values of Securities Available-for-sale (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	$ 1,635,419	$ 1,516,801
Available-for-sale Securities, Gross Unrealized Gains	10,488	4,743
Available-for-sale Securities, Gross Unrealized Losses	(143,799)	(179,064)
Available-for-sale Securities, Fair Value	1,502,108	1,342,480
U.S. Treasury Notes
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	42,740	116,398
Available-for-sale Securities, Gross Unrealized Gains	63	61
Available-for-sale Securities, Gross Unrealized Losses	(291)	(1,025)
Available-for-sale Securities, Fair Value	42,512	115,434
U.S. Government Agencies
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	163,197	147,062
Available-for-sale Securities, Gross Unrealized Gains	124	37
Available-for-sale Securities, Gross Unrealized Losses	(12,782)	(16,404)
Available-for-sale Securities, Fair Value	150,539	130,695
Obligations of States, Municipalities, and Political Subdivisions
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	85,185	86,022
Available-for-sale Securities, Gross Unrealized Gains	532	396
Available-for-sale Securities, Gross Unrealized Losses	(3,434)	(4,143)
Available-for-sale Securities, Fair Value	82,283	82,275
Agency, Residential Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	882,382	786,970
Available-for-sale Securities, Gross Unrealized Gains	8,766	4,247
Available-for-sale Securities, Gross Unrealized Losses	(78,361)	(95,414)
Available-for-sale Securities, Fair Value	812,787	695,803
Non-Agency, Residential Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	146,384	122,359
Available-for-sale Securities, Gross Unrealized Gains	102	0
Available-for-sale Securities, Gross Unrealized Losses	(18,156)	(22,099)
Available-for-sale Securities, Fair Value	128,330	100,260
Agency, Commercial Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	258,543	181,452
Available-for-sale Securities, Gross Unrealized Gains	891	0
Available-for-sale Securities, Gross Unrealized Losses	(27,265)	(34,248)
Available-for-sale Securities, Fair Value	232,169	147,204
Corporate Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	40,637	40,681
Available-for-sale Securities, Gross Unrealized Gains	3	0
Available-for-sale Securities, Gross Unrealized Losses	(2,563)	(4,510)
Available-for-sale Securities, Fair Value	38,077	36,171
Asset-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	16,351	35,857
Available-for-sale Securities, Gross Unrealized Gains	7	2
Available-for-sale Securities, Gross Unrealized Losses	(947)	(1,221)
Available-for-sale Securities, Fair Value	$ 15,411	$ 34,638

Securities - Summary of Amort_2

Securities - Summary of Amortized Cost and Fair Values of Securities Held-to-maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	$ 605	$ 1,157
Held-to-maturity Securities, Gross Unrealized Gains	0	0
Held-to-maturity Securities, Gross Unrealized Losses	(2)	(8)
Held-to-maturity Securities, Fair Value	603	1,149
Obligations of States, Municipalities, and Political Subdivisions
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	605	1,157
Held-to-maturity Securities, Gross Unrealized Gains	0	0
Held-to-maturity Securities, Gross Unrealized Losses	(2)	(8)
Held-to-maturity Securities, Fair Value	$ 603	$ 1,149

Securities - Additional Informa

Securities - Additional Information (Details) $ in Thousands	Sep. 30, 2024 USD ($) Security	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)
Schedule Of Investments [Line Items]
Trading securities	$ 0		$ 0
Investment securities pledged as collateral	589,800	$ 464,500
Securities available-for-sale and held-to-maturity	$ 5,300	$ 4,500
Minimum
Schedule Of Investments [Line Items]
Percentage of shareholders equity for which securities holdings exceeds for no issuer other than U.S. Government and agencies	10%	10%
Federal Home Loan Bank Advances
Schedule Of Investments [Line Items]
Carrying amount of securities pledged as collateral	$ 0	$ 0
Federal Reserve Bank
Schedule Of Investments [Line Items]
Carrying amount of securities pledged as collateral	0	0
Public Fund Deposits
Schedule Of Investments [Line Items]
Carrying amount of securities pledged as collateral	521,800	390,300
Customer Repurchase Agreements
Schedule Of Investments [Line Items]
Carrying amount of securities pledged as collateral	$ 40,400	$ 47,800
Available-for-sale Securities
Schedule Of Investments [Line Items]
Investment securities with unrealized losses | Security	267
Held-to-maturity Securities
Schedule Of Investments [Line Items]
Investment securities with unrealized losses | Security	1

Securities - Summary of Gross U

Securities - Summary of Gross Unrealized Losses and Fair Values, Aggregated by Investment Category and Length of Individual Securities Continuous Unrealized Loss Position Available-for-sale (Details) $ in Thousands	Sep. 30, 2024 USD ($) Security	Dec. 31, 2023 USD ($) Security
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	267	283
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 65,631	$ 33,553
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(406)	(1,735)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	1,009,067	1,046,104
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(143,393)	(177,329)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	1,074,698	1,079,657
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (143,799)	$ (179,064)
Held to maturity securities continuous unrealized loss position number of positions | Security	1	2
Held-to-maturity Securities, Fair Value	$ 603	$ 1,149
Held-to-maturity Securities, Gross Unrealized Losses	(2)	(8)
Less than 12 Months
Schedule Of Available For Sale Securities [Line Items]
Held-to-maturity Securities, Fair Value	0	0
Held-to-maturity Securities, Gross Unrealized Losses	0	0
12 Months or Longer
Schedule Of Available For Sale Securities [Line Items]
Held-to-maturity Securities, Fair Value	603	1,149
Held-to-maturity Securities, Gross Unrealized Losses	$ (2)	$ (8)
U.S. treasury notes
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	6	7
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 0	$ 5,018
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	0	(4)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	32,646	31,843
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(291)	(1,021)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	32,646	36,861
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (291)	$ (1,025)
U.S. Government Agencies
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	17	18
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 0	$ 535
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	0	(9)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	122,805	119,109
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(12,782)	(16,395)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	122,805	119,644
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (12,782)	$ (16,404)
Obligations of States, Municipalities, and Political Subdivisions
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	53	61
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 2,677	$ 12,267
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(6)	(156)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	52,003	49,617
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(3,428)	(3,987)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	54,680	61,884
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (3,434)	$ (4,143)
Held to maturity securities continuous unrealized loss position number of positions | Security	1	2
Held-to-maturity Securities, Fair Value	$ 603	$ 1,149
Held-to-maturity Securities, Gross Unrealized Losses	(2)	(8)
Obligations of States, Municipalities, and Political Subdivisions | Less than 12 Months
Schedule Of Available For Sale Securities [Line Items]
Held-to-maturity Securities, Fair Value	0	0
Held-to-maturity Securities, Gross Unrealized Losses	0	0
Obligations of States, Municipalities, and Political Subdivisions | 12 Months or Longer
Schedule Of Available For Sale Securities [Line Items]
Held-to-maturity Securities, Fair Value	603	1,149
Held-to-maturity Securities, Gross Unrealized Losses	$ (2)	$ (8)
Agency, Residential Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	101	102
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 20,016	$ 8,332
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(146)	(49)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	516,354	543,648
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(78,215)	(95,365)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	536,370	551,980
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (78,361)	$ (95,414)
Non-Agency, Residential Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	20	20
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 18,406	$ 636
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(79)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	96,546	99,624
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(18,077)	(22,099)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	114,952	100,260
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (18,156)	$ (22,099)
Agency, Commercial Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	49	48
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 23,077	$ 6,765
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(138)	(1,517)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	147,021	140,439
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(27,127)	(32,731)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	170,098	147,204
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (27,265)	$ (34,248)
Corporate Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	20	21
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 1,455	$ 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(37)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	35,619	36,171
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(2,526)	(4,510)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	37,074	36,171
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (2,563)	$ (4,510)
Asset-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	1	6
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 0	$ 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	6,073	25,653
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(947)	(1,221)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	6,073	25,653
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (947)	$ (1,221)

Securities - Schedule of Amorti

Securities - Schedule of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Available-for-sale Securities Debt Maturities, Amortized Cost [Abstract]
Available-for-sale Securities, Due in one year or less, Amortized Cost	$ 54,931
Available-for-sale Securities, Due from one to five years, Amortized Cost	92,138
Available-for-sale Securities, Due from five to ten years, Amortized Cost	157,619
Available-for-sale Securities, Due after ten years, Amortized Cost	43,422
Available-for-sale Securities, Not due at single maturity, Amortized Cost	1,287,309
Available-for-sale Securities, Amortized Cost	1,635,419	$ 1,516,801
Held-to-maturity Securities Debt Maturities, Amortized Cost [Abstract]
Held-to-maturity Securities, Due in one year or less, Amortized Cost	605
Held-to-maturity Securities, Amortized Cost	605	1,157
Available-for-sale Securities Debt Maturities, Fair Value [Abstract]
Available-for-sale Securities, Due in one year or less, Fair Value	54,139
Available-for-sale Securities, Due from one to five years, Fair Value	88,523
Available-for-sale Securities, Due from five to ten years, Fair Value	146,197
Available-for-sale Securities, Due after ten years, Fair Value	39,963
Available-for-sale Securities, Not due at single maturity, Fair Value	1,173,286
Available-for-sale Securities, Fair Value, Total	1,502,108	1,342,480
Held-to-maturity Securities Debt Maturities, Fair Value [Abstract]
Held-to-maturity Securities, Due in one year or less, Fair Value	603
Held-to-maturity securities, Fair Value, Total	$ 603	$ 1,149

Loan and Lease Receivables an_3

Loan and Lease Receivables and Allowance for Credit Losses - Schedule of Outstanding Loan and Lease Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	$ 6,866,059		$ 6,671,526
Net unamortized deferred fees and costs	7,118		6,600
Initial direct costs	6,269		6,180
Allowance for credit losses - loans and leases	(98,860)	$ (99,730)	(101,686)	$ (105,696)	$ (92,665)	$ (81,924)
Net loans and leases	6,780,586		6,582,620
Lease financing receivables
Net minimum lease payments	676,240		644,507
Unguaranteed residual values	115,439		92,127
Unearned income	(86,569)		(76,948)
Total lease financing receivables	705,110		659,686
Initial direct costs	6,269		6,180
Lease financial receivables before allowance for credits losses - loans and leases	711,379		665,866
Commercial Real Estate
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	2,359,354		2,317,289
Allowance for credit losses - loans and leases	(27,640)	(27,852)	(33,237)	(34,985)	(26,377)	(26,061)
Residential Real Estate
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	709,612		718,733
Allowance for credit losses - loans and leases	(2,905)	(3,023)	(3,495)	(4,151)	(2,544)	(3,140)
Construction, Land Development, and Other Land
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	501,181		528,275
Allowance for credit losses - loans and leases	(2,608)	(2,723)	(2,906)	(3,200)	(1,935)	(3,134)
Commercial and Industrial
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	2,586,890		2,444,405
Allowance for credit losses - loans and leases	(57,235)	(57,584)	(53,782)	(54,838)	(53,640)	(41,889)
Installment and Other
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	3,912		3,138
Allowance for credit losses - loans and leases	(46)	(30)	(36)	(44)	(43)	(24)
Lease Financing Receivables
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	705,110		659,686
Allowance for credit losses - loans and leases	$ (8,426)	$ (8,518)	$ (8,230)	$ (8,478)	$ (8,126)	$ (7,676)

Loan and Lease Receivables an_4

Loan and Lease Receivables and Allowance for Credit Losses - Additional Information (Details) - USD ($)	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	$ 6,866,059,000		$ 6,671,526,000
Loans held for sale pledged as security for borrowings	2,000,000,000		2,200,000,000
Accrued interest on loans and leases	34,700,000		38,900,000
Allowance for loan and lease losses	98,860,000	$ 99,730,000	101,686,000	$ 105,696,000	$ 92,665,000	$ 81,924,000
Acquired Impaired Loans
Accounts Notes And Loans Receivable [Line Items]
Allowance for loan and lease losses	4,900,000		10,000,000
Acquired Non Impaired Loans [Member]
Accounts Notes And Loans Receivable [Line Items]
Allowance for loan and lease losses	3,800,000		4,700,000
Installment and Other
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	3,912,000		3,138,000
Overdraft deposits reclassified as loans	618,000		754,000
Allowance for loan and lease losses	46,000	$ 30,000	36,000	$ 44,000	$ 43,000	$ 24,000
U.S. Government Guaranteed Loans
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	88,100,000		93,300,000
Discount on the unguaranteed portion of government guaranteed loans	$ 25,600,000		$ 26,200,000

Loan and Lease Receivables an_5

Loan and Lease Receivables and Allowance for Credit Losses - Additional Information 1 (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses period increase decrease	$ (870,000,000)	$ 13,000,000	$ (2,800,000)	$ 23,800,000	$ 10,600,000
Risk ratings for loans			1,000,000
Financing receivable excluding accrued interest modified subsequent default					$ 406,000,000
Percentage of outstanding commercial and industrial loans					0.02%
Assessment of modified loans.					$ 500,000,000
Individually evaluated for impairment	88,478,000	116,410,000	88,478,000	116,410,000
Adjustment for acquired PCD loans	(870,000,000)	13,000,000	(2,800,000)	23,800,000	10,600,000
Interest income on non-accrual loans and leases	128,336,000	125,465,000	378,651,000	316,942,000
Commitments outstanding on modified loans	$ 1,500		1,500		9,100
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified subsequent default			$ 2,800,000
Percentage of outstanding commercial and industrial loans	0.12%		0.12%
Individually evaluated for impairment	$ 34,260,000	67,596,000	$ 34,260,000	67,596,000
Non-accrual loans without allowance	$ 6,500,000		6,500,000		1,600,000
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable excluding accrued interest modified subsequent default			$ 8,200,000
Percentage of outstanding commercial and industrial loans	0.32%		0.32%
Individually evaluated for impairment	$ 50,627,000	48,814,000	$ 50,627,000	48,814,000
Non-accrual loans without allowance	3,300,000		3,300,000		2,300,000
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	3,591,000	0	3,591,000	0
Non-accrual loans without allowance	3,000,000		$ 3,000,000		$ 3,600,000
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, weighted average rate of interest			8.85%
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, weighted average rate of interest			7.01%
Individually Evaluated For Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses period increase decrease	1,400,000	2,400,000	$ 2,200,000	13,000,000
Adjustment for acquired PCD loans	1,400,000	2,400,000	2,200,000	13,000,000
Collectively Evaluated For Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses period increase decrease	(2,300,000)	10,700,000	(578,000,000)	10,800,000
Adjustment for acquired PCD loans	(2,300,000)	10,700,000	(578,000,000)	10,800,000
Non Accrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income on non-accrual loans and leases	$ 514,000	$ 770,000	$ 1,800,000	$ 2,800,000

Loan and Lease Receivables an_6

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Minimum Annual Lease Payments for Lease Financing Receivables (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Receivables [Abstract]
2024	$ 56,032
2025	232,899
2026	183,571
2027	121,473
2028	63,854
Thereafter	18,411
Total	$ 676,240

Loan and Lease Receivables an_7

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Balances for Each Respective Loan and Lease Category (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	$ 6,879,446	$ 6,684,306	$ 6,613,303
Originated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	6,143,991	5,767,045
Purchased Credit Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	141,242	225,233
Acquired Non-Credit-Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	594,213	692,028
Commercial Real Estate
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	2,362,347	2,320,312	2,288,760
Commercial Real Estate | Originated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	2,040,072	1,907,029
Commercial Real Estate | Purchased Credit Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	95,240	137,807
Commercial Real Estate | Acquired Non-Credit-Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	227,035	275,476
Residential Real Estate
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	710,372	719,530	722,032
Residential Real Estate | Originated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	497,034	465,133
Residential Real Estate | Purchased Credit Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	31,362	42,510
Residential Real Estate | Acquired Non-Credit-Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	181,976	211,887
Construction, Land Development, and Other Land
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	499,812	526,837	523,008
Construction, Land Development, and Other Land | Originated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	415,636	415,162
Construction, Land Development, and Other Land | Purchased Credit Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	4	25,331
Construction, Land Development, and Other Land | Acquired Non-Credit-Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	84,172	86,344
Commercial and Industrial
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	2,591,555	2,448,561	2,434,325
Commercial and Industrial | Originated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	2,476,177	2,311,563
Commercial and Industrial | Purchased Credit Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	14,526	19,460
Commercial and Industrial | Acquired Non-Credit-Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	100,852	117,538
Installment and Other
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	3,981	3,200	3,246
Installment and Other | Originated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	3,839	2,919
Installment and Other | Purchased Credit Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	110	125
Installment and Other | Acquired Non-Credit-Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	32	156
Lease Financing Receivables
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	711,379	665,866	$ 641,932
Lease Financing Receivables | Originated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	711,233	665,239
Lease Financing Receivables | Purchased Credit Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	0	0
Lease Financing Receivables | Acquired Non-Credit-Deteriorated
Accounts Notes And Loans Receivable [Line Items]
Total loans and leases	$ 146	$ 627

Loan and Lease Receivables an_8

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Outstanding Balance and Carrying Amount of All Acquired Impaired Loans (Details) - Acquired Impaired Loans - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	$ 241,537	$ 327,842
Carrying Value	141,242	225,233
Commercial Real Estate
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	138,363	185,007
Carrying Value	95,240	137,807
Residential Real Estate
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	75,970	88,036
Carrying Value	31,362	42,510
Construction, Land Development, and Other Land
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	6,673	32,140
Carrying Value	4	25,331
Commercial and Industrial
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	19,757	21,870
Carrying Value	14,526	19,460
Installment and Other
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	774	789
Carrying Value	$ 110	$ 125

Loan and Lease Receivables an_9

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Reconciliation of Acquired Inland Pcd Loans Between Purchase Price and Par Value at Acquisition (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Receivables [Abstract]
Fair value of loans at acquisition	$ 214,573
Allowance for credit losses - loans and leases, at acquisition	10,596
Non-credit discount/premium at acquisition	17,909
Par value of acquired loans at acquisition	$ 243,078

Loan and Lease Receivables a_10

Loan and Lease Receivables and Allowance for Credit Losses - Schedule of Unpaid Principal Balance and Carrying Value for Acquired Non-impaired Loans and Leases (Details) - Acquired Non-Impaired - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	$ 619,239	$ 723,692
Carrying Value	594,213	692,028
Commercial Real Estate
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	233,775	284,819
Carrying Value	227,035	275,476
Residential Real Estate
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	195,134	227,392
Carrying Value	181,976	211,887
Construction, Land Development, and Other Land
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	84,663	87,143
Carrying Value	84,172	86,344
Commercial and Industrial
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	105,482	123,540
Carrying Value	100,852	117,538
Installment and Other
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	39	170
Carrying Value	32	156
Lease Financing Receivables
Accounts Notes And Loans Receivable [Line Items]
Unpaid Principal Balance	146	628
Carrying Value	$ 146	$ 627

Loan and Lease Receivables a_11

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Risk Rating Categories of Loans and Leases Considered for Inclusion in Allowance for Credit Losses Calculation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Gross charge offs, 2024			$ 0
Gross charge offs, 2023			3,392		$ 2,252
Gross charge offs, 2022			5,232		3,017
Gross charge offs, 2021			2,188		5,981
Gross charge offs, 2020			2,040		6,101
Gross charge offs, 2019					5,216
Gross charge offs, Prior			13,907		5,034
Gross charge offs, Revolving loans			0		0
Gross charge offs	$ 9,059	$ 6,179	26,759	$ 14,752	27,601
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Gross charge offs, 2024			0
Gross charge offs, 2023			1,424		0
Gross charge offs, 2022			295		193
Gross charge offs, 2021			187		60
Gross charge offs, 2020			718		1,511
Gross charge offs, 2019					4,054
Gross charge offs, Prior			2,489		3,911
Gross charge offs, Revolving loans			0		0
Gross charge offs	1,615	1,360	5,113	5,271	9,729
Residential Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Gross charge offs, 2024			0
Gross charge offs, 2023			0		0
Gross charge offs, 2022			0		0
Gross charge offs, 2021			0		0
Gross charge offs, 2020			0		0
Gross charge offs, 2019					0
Gross charge offs, Prior			0		21
Gross charge offs, Revolving loans			0		0
Gross charge offs	0	12	0	21	21
Construction, Land Development, and Other Land
Financing Receivable, Credit Quality Indicator [Line Items]
Gross charge offs, 2024			0
Gross charge offs, 2023			0		0
Gross charge offs, 2022			0		0
Gross charge offs, 2021			0		0
Gross charge offs, 2020			0		0
Gross charge offs, 2019					0
Gross charge offs, Prior			0		0
Gross charge offs, Revolving loans			0		0
Gross charge offs	0	0	0	0	0
Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross charge offs, 2024			0
Gross charge offs, 2023			1,534		1,518
Gross charge offs, 2022			4,377		1,938
Gross charge offs, 2021			1,538		5,372
Gross charge offs, 2020			1,264		4,451
Gross charge offs, 2019					1,087
Gross charge offs, Prior			11,384		1,045
Gross charge offs, Revolving loans			0		0
Gross charge offs	6,948	4,200	20,097	8,087	15,411
Installment and Other
Financing Receivable, Credit Quality Indicator [Line Items]
Gross charge offs, 2024			0
Gross charge offs, 2023			0		0
Gross charge offs, 2022			0		0
Gross charge offs, 2021			0		0
Gross charge offs, 2020			0		0
Gross charge offs, 2019					0
Gross charge offs, Prior			0		3
Gross charge offs, Revolving loans			0		0
Gross charge offs	0	3	0	3	3
Lease Financing Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
Gross charge offs, 2024			0
Gross charge offs, 2023			434		734
Gross charge offs, 2022			560		886
Gross charge offs, 2021			463		549
Gross charge offs, 2020			58		139
Gross charge offs, 2019					75
Gross charge offs, Prior			34		54
Gross charge offs, Revolving loans			0		0
Gross charge offs	496	$ 604	1,549	$ 1,370	2,437
Loans Excluding Acquired Impaired Loans
Financing Receivable, Credit Quality Indicator [Line Items]
2024	793,412		793,412
2023	1,255,157		1,255,157		1,244,045
2022	1,420,026		1,420,026		1,546,815
2021	1,141,256		1,141,256		1,329,072
2020	475,666		475,666		559,791
2019					339,037
Prior	1,081,002		1,081,002		960,154
Revolving Loans	712,927		712,927		705,392
Total loans	6,879,446		6,879,446		6,684,306
Loans Excluding Acquired Impaired Loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	787,783		787,783
2023	1,129,536		1,129,536		1,188,866
2022	1,288,588		1,288,588		1,455,452
2021	991,887		991,887		1,186,886
2020	413,366		413,366		458,076
2019					269,391
Prior	887,935		887,935		764,342
Revolving Loans	596,764		596,764		612,561
Total loans	6,095,859		6,095,859		5,935,574
Loans Excluding Acquired Impaired Loans | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2024	4,880		4,880
2023	113,545		113,545		54,920
2022	81,495		81,495		74,042
2021	88,313		88,313		99,161
2020	47,610		47,610		84,247
2019					37,607
Prior	107,210		107,210		94,892
Revolving Loans	82,468		82,468		41,128
Total loans	525,521		525,521		485,997
Loans Excluding Acquired Impaired Loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	1,710		1,710		0
2022	16,223		16,223		6,963
2021	42,642		42,642		30,626
2020	9,986		9,986		9,022
2019					14,091
Prior	38,330		38,330		32,470
Revolving Loans	23,932		23,932		36,767
Total loans	132,823		132,823		129,939
Loans Excluding Acquired Impaired Loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	749		749
2023	10,366		10,366		259
2022	33,720		33,720		10,358
2021	18,414		18,414		12,399
2020	4,704		4,704		8,446
2019					17,948
Prior	47,527		47,527		68,450
Revolving Loans	9,763		9,763		14,936
Total loans	125,243		125,243		132,796
Loans Excluding Acquired Impaired Loans | Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	237,206		237,206
2023	281,445		281,445		260,357
2022	458,706		458,706		477,908
2021	521,545		521,545		559,625
2020	254,879		254,879		280,155
2019					183,881
Prior	593,152		593,152		529,197
Revolving Loans	15,414		15,414		29,189
Total loans	2,362,347		2,362,347		2,320,312
Loans Excluding Acquired Impaired Loans | Commercial Real Estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	234,817		234,817
2023	240,042		240,042		247,856
2022	412,993		412,993		452,127
2021	465,184		465,184		516,624
2020	219,570		219,570		229,053
2019					143,283
Prior	469,298		469,298		388,872
Revolving Loans	15,414		15,414		28,360
Total loans	2,057,318		2,057,318		2,006,175
Loans Excluding Acquired Impaired Loans | Commercial Real Estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2024	2,389		2,389
2023	39,813		39,813		12,501
2022	37,636		37,636		22,094
2021	41,665		41,665		26,408
2020	31,925		31,925		46,713
2019					20,364
Prior	66,246		66,246		68,003
Revolving Loans	0		0		0
Total loans	219,674		219,674		196,083
Loans Excluding Acquired Impaired Loans | Commercial Real Estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0		0
2022	4,330		4,330		799
2021	6,084		6,084		10,752
2020	2,548		2,548		2,618
2019					12,751
Prior	27,329		27,329		25,790
Revolving Loans	0		0		0
Total loans	40,291		40,291		52,710
Loans Excluding Acquired Impaired Loans | Commercial Real Estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	1,590		1,590		0
2022	3,747		3,747		2,888
2021	8,612		8,612		5,841
2020	836		836		1,771
2019					7,483
Prior	30,279		30,279		46,532
Revolving Loans	0		0		829
Total loans	45,064		45,064		65,344
Loans Excluding Acquired Impaired Loans | Residential Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	30,218		30,218
2023	49,279		49,279		55,178
2022	135,794		135,794		140,288
2021	118,593		118,593		104,112
2020	67,993		67,993		75,851
2019					45,449
Prior	245,909		245,909		237,825
Revolving Loans	62,586		62,586		60,827
Total loans	710,372		710,372		719,530
Loans Excluding Acquired Impaired Loans | Residential Real Estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	30,218		30,218
2023	48,700		48,700		55,178
2022	130,936		130,936		135,477
2021	117,898		117,898		104,005
2020	50,426		50,426		54,651
2019					37,806
Prior	233,043		233,043		225,593
Revolving Loans	60,491		60,491		57,865
Total loans	671,712		671,712		670,575
Loans Excluding Acquired Impaired Loans | Residential Real Estate | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0		0
2022	2,609		2,609		4,811
2021	595		595		0
2020	13,835		13,835		17,417
2019					7,167
Prior	11,166		11,166		8,708
Revolving Loans	1,082		1,082		1,597
Total loans	29,287		29,287		39,700
Loans Excluding Acquired Impaired Loans | Residential Real Estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0		0
2022	0		0		0
2021	0		0		0
2020	3,732		3,732		3,594
2019					127
Prior	0		0		1
Revolving Loans	0		0		413
Total loans	3,732		3,732		4,135
Loans Excluding Acquired Impaired Loans | Residential Real Estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	579		579		0
2022	2,249		2,249		0
2021	100		100		107
2020	0		0		189
2019					349
Prior	1,700		1,700		3,523
Revolving Loans	1,013		1,013		952
Total loans	5,641		5,641		5,120
Loans Excluding Acquired Impaired Loans | Construction, Land Development, and Other Land
Financing Receivable, Credit Quality Indicator [Line Items]
2024	18,408		18,408
2023	163,240		163,240		83,841
2022	149,722		149,722		159,164
2021	124,928		124,928		215,136
2020	37,236		37,236		54,182
2019					12,897
Prior	5,933		5,933		1,443
Revolving Loans	345		345		174
Total loans	499,812		499,812		526,837
Loans Excluding Acquired Impaired Loans | Construction, Land Development, and Other Land | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	18,408		18,408
2023	157,084		157,084		82,449
2022	143,776		143,776		145,174
2021	97,798		97,798		184,544
2020	37,236		37,236		35,466
2019					9,772
Prior	2,852		2,852		1,429
Revolving Loans	345		345		174
Total loans	457,499		457,499		459,008
Loans Excluding Acquired Impaired Loans | Construction, Land Development, and Other Land | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	4,765		4,765		1,392
2022	4,387		4,387		13,990
2021	15,645		15,645		21,313
2020	0		0		18,716
2019					3,125
Prior	3,081		3,081		0
Revolving Loans	0		0		0
Total loans	27,878		27,878		58,536
Loans Excluding Acquired Impaired Loans | Construction, Land Development, and Other Land | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	1,391		1,391		0
2022	1,559		1,559		0
2021	11,485		11,485		9,279
2020	0		0		0
2019					0
Prior	0		0		0
Revolving Loans	0		0		0
Total loans	14,435		14,435		9,279
Loans Excluding Acquired Impaired Loans | Construction, Land Development, and Other Land | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0		0
2022	0		0		0
2021	0		0		0
2020	0		0		0
2019					0
Prior	0		0		14
Revolving Loans	0		0		0
Total loans	0		0		14
Loans Excluding Acquired Impaired Loans | Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2024	284,361		284,361
2023	499,511		499,511		516,747
2022	525,665		525,665		561,478
2021	315,691		315,691		355,461
2020	99,035		99,035		119,877
2019					91,238
Prior	235,136		235,136		190,372
Revolving Loans	632,156		632,156		613,388
Total loans	2,591,555		2,591,555		2,448,561
Loans Excluding Acquired Impaired Loans | Commercial and Industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	281,416		281,416
2023	423,375		423,375		475,720
2022	451,891		451,891		514,902
2021	251,322		251,322		288,392
2020	89,779		89,779		109,430
2019					73,059
Prior	181,871		181,871		147,168
Revolving Loans	518,089		518,089		524,348
Total loans	2,197,743		2,197,743		2,133,019
Loans Excluding Acquired Impaired Loans | Commercial and Industrial | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2024	2,196		2,196
2023	68,233		68,233		41,027
2022	36,815		36,815		33,080
2021	30,408		30,408		50,407
2020	1,842		1,842		1,385
2019					6,951
Prior	26,717		26,717		18,180
Revolving Loans	81,386		81,386		39,531
Total loans	247,597		247,597		190,561
Loans Excluding Acquired Impaired Loans | Commercial and Industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	319		319		0
2022	10,334		10,334		6,164
2021	25,073		25,073		10,595
2020	3,546		3,546		2,631
2019					1,112
Prior	11,001		11,001		6,643
Revolving Loans	23,931		23,931		36,354
Total loans	74,204		74,204		63,499
Loans Excluding Acquired Impaired Loans | Commercial and Industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	749		749
2023	7,584		7,584		0
2022	26,625		26,625		7,332
2021	8,888		8,888		6,067
2020	3,868		3,868		6,431
2019					10,116
Prior	15,547		15,547		18,381
Revolving Loans	8,750		8,750		13,155
Total loans	72,011		72,011		61,482
Loans Excluding Acquired Impaired Loans | Installment and Other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	670		670
2023	342		342		564
2022	89		89		132
2021	62		62		104
2020	4		4		133
2019					28
Prior	388		388		425
Revolving Loans	2,426		2,426		1,814
Total loans	3,981		3,981		3,200
Loans Excluding Acquired Impaired Loans | Installment and Other | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	670		670
2023	342		342		564
2022	89		89		132
2021	39		39		79
2020	4		4		133
2019					28
Prior	388		388		424
Revolving Loans	2,425		2,425		1,814
Total loans	3,957		3,957		3,174
Loans Excluding Acquired Impaired Loans | Installment and Other | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0		0
2022	0		0		0
2021	0		0		25
2020	0		0		0
2019					0
Prior	0		0		1
Revolving Loans	0		0		0
Total loans	0		0		26
Loans Excluding Acquired Impaired Loans | Installment and Other | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0		0
2022	0		0		0
2021	0		0		0
2020	0		0		0
2019					0
Prior	0		0		0
Revolving Loans	1		1		0
Total loans	1		1		0
Loans Excluding Acquired Impaired Loans | Installment and Other | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0		0
2022	0		0		0
2021	23		23		0
2020	0		0		0
2019					0
Prior	0		0		0
Revolving Loans	0		0		0
Total loans	23		23		0
Loans Excluding Acquired Impaired Loans | Lease Financing Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2024	222,549		222,549
2023	261,340		261,340		327,358
2022	150,050		150,050		207,845
2021	60,437		60,437		94,634
2020	16,519		16,519		29,593
2019					5,544
Prior	484		484		892
Revolving Loans	0		0		0
Total loans	711,379		711,379		665,866
Loans Excluding Acquired Impaired Loans | Lease Financing Receivables | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	222,254		222,254
2023	259,993		259,993		327,099
2022	148,903		148,903		207,640
2021	59,646		59,646		93,242
2020	16,351		16,351		29,343
2019					5,443
Prior	483		483		856
Revolving Loans	0		0		0
Total loans	707,630		707,630		663,623
Loans Excluding Acquired Impaired Loans | Lease Financing Receivables | Watch
Financing Receivable, Credit Quality Indicator [Line Items]
2024	295		295
2023	734		734		0
2022	48		48		67
2021	0		0		1,008
2020	8		8		16
2019					0
Prior	0		0		0
Revolving Loans	0		0		0
Total loans	1,085		1,085		1,091
Loans Excluding Acquired Impaired Loans | Lease Financing Receivables | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	0		0		0
2022	0		0		0
2021	0		0		0
2020	160		160		179
2019					101
Prior	0		0		36
Revolving Loans	0		0		0
Total loans	160		160		316
Loans Excluding Acquired Impaired Loans | Lease Financing Receivables | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0		0
2023	613		613		259
2022	1,099		1,099		138
2021	791		791		384
2020	0		0		55
2019					0
Prior	1		1		0
Revolving Loans	0		0		0
Total loans	$ 2,504		$ 2,504		$ 836

Loan and Lease Receivables a_12

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Risk Rating Categories of Loans and Leases Considered for Inclusion in Allowance for Credit Losses Calculation (Details) (Parenthetical) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	$ 78.4	$ 52.2

Loan and Lease Receivables a_13

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Contractual Delinquency Information (Details) - Acquired Non-Impaired and Originated Loans - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
2024	$ 793,412
2023	1,255,157	$ 1,244,045
2022	1,420,026	1,546,815
2021	1,141,256	1,329,072
2020	475,666	559,791
2019		339,037
Prior	1,081,002	960,154
Revolving Loans	712,927	705,392
Total loans	6,879,446	6,684,306
Current
Financing Receivable, Credit Quality Indicator [Line Items]
2024	790,244
2023	1,241,719	1,242,161
2022	1,398,465	1,527,324
2021	1,132,573	1,321,778
2020	471,801	552,689
2019		326,021
Prior	1,039,617	911,718
Revolving Loans	707,807	702,419
Total loans	6,782,226	6,584,110
30 to 59 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,849
2023	2,118	1,085
2022	1,047	6,459
2021	341	2,922
2020	120	887
2019		5,722
Prior	2,969	5,008
Revolving Loans	714	854
Total loans	9,158	22,937
60-89 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,227
2023	1,968	540
2022	3,519	5,161
2021	970	302
2020	789	738
2019		3,440
Prior	8,603	2,475
Revolving Loans	479	496
Total loans	17,555	13,152
Greater than 90 Accruing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2024	92
2023	9,352	259
2022	16,995	7,871
2021	7,372	4,070
2020	2,956	5,477
2019		3,854
Prior	29,813	40,953
Revolving Loans	3,927	1,623
Total loans	70,507	64,107
Total Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	3,168
2023	13,438	1,884
2022	21,561	19,491
2021	8,683	7,294
2020	3,865	7,102
2019		13,016
Prior	41,385	48,436
Revolving Loans	5,120	2,973
Total loans	97,220	100,196
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	237,206
2023	281,445	260,357
2022	458,706	477,908
2021	521,545	559,625
2020	254,879	280,155
2019		183,881
Prior	593,152	529,197
Revolving Loans	15,414	29,189
Total loans	2,362,347	2,320,312
Commercial Real Estate | Current
Financing Receivable, Credit Quality Indicator [Line Items]
2024	237,081
2023	279,855	259,998
2022	455,422	474,878
2021	517,237	558,236
2020	254,618	279,098
2019		178,729
Prior	568,823	501,620
Revolving Loans	15,414	29,189
Total loans	2,328,450	2,281,748
Commercial Real Estate | 30 to 59 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	125
2023	0	359
2022	0	648
2021	0	638
2020	0	74
2019		3,176
Prior	2,920	484
Revolving Loans	0	0
Total loans	3,045	5,379
Commercial Real Estate | 60-89 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	636	826
2021	0	0
2020	0	286
2019		0
Prior	914	1,208
Revolving Loans	0	0
Total loans	1,550	2,320
Commercial Real Estate | Greater than 90 Accruing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Commercial Real Estate | Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	1,590	0
2022	2,648	1,556
2021	4,308	751
2020	261	697
2019		1,976
Prior	20,495	25,885
Revolving Loans	0	0
Total loans	29,302	30,865
Commercial Real Estate | Total Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	125
2023	1,590	359
2022	3,284	3,030
2021	4,308	1,389
2020	261	1,057
2019		5,152
Prior	24,329	27,577
Revolving Loans	0	0
Total loans	33,897	38,564
Residential Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	30,218
2023	49,279	55,178
2022	135,794	140,288
2021	118,593	104,112
2020	67,993	75,851
2019		45,449
Prior	245,909	237,825
Revolving Loans	62,586	60,827
Total loans	710,372	719,530
Residential Real Estate | Current
Financing Receivable, Credit Quality Indicator [Line Items]
2024	30,218
2023	49,279	55,178
2022	133,545	136,448
2021	118,493	102,973
2020	67,993	75,125
2019		45,050
Prior	244,299	230,102
Revolving Loans	61,218	59,476
Total loans	705,045	704,352
Residential Real Estate | 30 to 59 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	3,840
2021	0	1,032
2020	0	537
2019		29
Prior	44	4,122
Revolving Loans	355	399
Total loans	399	9,959
Residential Real Estate | 60-89 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		21
Prior	0	127
Revolving Loans	0	0
Total loans	0	148
Residential Real Estate | Greater than 90 Accruing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Residential Real Estate | Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	2,249	0
2021	100	107
2020	0	189
2019		349
Prior	1,566	3,474
Revolving Loans	1,013	952
Total loans	4,928	5,071
Residential Real Estate | Total Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	2,249	3,840
2021	100	1,139
2020	0	726
2019		399
Prior	1,610	7,723
Revolving Loans	1,368	1,351
Total loans	5,327	15,178
Construction, Land Development, and Other Land
Financing Receivable, Credit Quality Indicator [Line Items]
2024	18,408
2023	163,240	83,841
2022	149,722	159,164
2021	124,928	215,136
2020	37,236	54,182
2019		12,897
Prior	5,933	1,443
Revolving Loans	345	174
Total loans	499,812	526,837
Construction, Land Development, and Other Land | Current
Financing Receivable, Credit Quality Indicator [Line Items]
2024	18,408
2023	163,240	83,841
2022	149,722	156,815
2021	124,928	215,136
2020	37,236	54,182
2019		12,897
Prior	5,933	1,443
Revolving Loans	345	174
Total loans	499,812	524,488
Construction, Land Development, and Other Land | 30 to 59 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Construction, Land Development, and Other Land | 60-89 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	2,349
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	2,349
Construction, Land Development, and Other Land | Greater than 90 Accruing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Construction, Land Development, and Other Land | Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Construction, Land Development, and Other Land | Total Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	2,349
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	2,349
Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2024	284,361
2023	499,511	516,747
2022	525,665	561,478
2021	315,691	355,461
2020	99,035	119,877
2019		91,238
Prior	235,136	190,372
Revolving Loans	632,156	613,388
Total loans	2,591,555	2,448,561
Commercial and Industrial | Current
Financing Receivable, Credit Quality Indicator [Line Items]
2024	283,611
2023	491,992	516,747
2022	512,755	552,251
2021	313,279	351,534
2020	95,712	114,859
2019		83,780
Prior	219,696	177,239
Revolving Loans	628,404	611,766
Total loans	2,545,449	2,408,176
Commercial and Industrial | 30 to 59 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	158	1,545
2021	0	1,099
2020	0	238
2019		2,513
Prior	0	400
Revolving Loans	359	455
Total loans	517	6,250
Commercial and Industrial | 60-89 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	658
2023	370	0
2022	1,753	1,505
2021	256	0
2020	628	234
2019		3,416
Prior	7,689	1,139
Revolving Loans	479	496
Total loans	11,833	6,790
Commercial and Industrial | Greater than 90 Accruing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Commercial and Industrial | Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2024	92
2023	7,149	0
2022	10,999	6,177
2021	2,156	2,828
2020	2,695	4,546
2019		1,529
Prior	7,751	11,594
Revolving Loans	2,914	671
Total loans	33,756	27,345
Commercial and Industrial | Total Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	750
2023	7,519	0
2022	12,910	9,227
2021	2,412	3,927
2020	3,323	5,018
2019		7,458
Prior	15,440	13,133
Revolving Loans	3,752	1,622
Total loans	46,106	40,385
Installment and Other
Financing Receivable, Credit Quality Indicator [Line Items]
2024	670
2023	342	564
2022	89	132
2021	62	104
2020	4	133
2019		28
Prior	388	425
Revolving Loans	2,426	1,814
Total loans	3,981	3,200
Installment and Other | Current
Financing Receivable, Credit Quality Indicator [Line Items]
2024	670
2023	342	564
2022	89	132
2021	39	104
2020	4	133
2019		28
Prior	388	425
Revolving Loans	2,426	1,814
Total loans	3,958	3,200
Installment and Other | 30 to 59 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Installment and Other | 60-89 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Installment and Other | Greater than 90 Accruing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Installment and Other | Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	23	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	23	0
Installment and Other | Total Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	0	0
2022	0	0
2021	23	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	23	0
Lease Financing Receivables
Financing Receivable, Credit Quality Indicator [Line Items]
2024	222,549
2023	261,340	327,358
2022	150,050	207,845
2021	60,437	94,634
2020	16,519	29,593
2019		5,544
Prior	484	892
Revolving Loans	0	0
Total loans	711,379	665,866
Lease Financing Receivables | Current
Financing Receivable, Credit Quality Indicator [Line Items]
2024	220,256
2023	257,011	325,833
2022	146,932	206,800
2021	58,597	93,795
2020	16,238	29,292
2019		5,537
Prior	478	889
Revolving Loans	0	0
Total loans	699,512	662,146
Lease Financing Receivables | 30 to 59 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,724
2023	2,118	726
2022	889	426
2021	341	153
2020	120	38
2019		4
Prior	5	2
Revolving Loans	0	0
Total loans	5,197	1,349
Lease Financing Receivables | 60-89 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	569
2023	1,598	540
2022	1,130	481
2021	714	302
2020	161	218
2019		3
Prior	0	1
Revolving Loans	0	0
Total loans	4,172	1,545
Lease Financing Receivables | Greater than 90 Accruing
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023		0
2022	0	0
2021	0	0
2020	0	0
2019		0
Prior	0	0
Revolving Loans	0	0
Total loans	0	0
Lease Financing Receivables | Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0
2023	613	259
2022	1,099	138
2021	785	384
2020	0	45
2019		0
Prior	1	0
Revolving Loans	0	0
Total loans	2,498	826
Lease Financing Receivables | Total Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
2024	2,293
2023	4,329	1,525
2022	3,118	1,045
2021	1,840	839
2020	281	301
2019		7
Prior	6	3
Revolving Loans	0	0
Total loans	$ 11,867	$ 3,720

Loan and Lease Receivables a_14

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Contractual Delinquency Information (Parenthetical) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Interest income on non-accrual loans and leases	$ 128,336,000	$ 125,465,000	$ 378,651,000	$ 316,942,000
Non Accrual Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Interest income on non-accrual loans and leases	514,000	$ 770,000	1,800,000	$ 2,800,000
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Non-accrual loans without allowance	6,500,000		6,500,000		$ 1,600,000
Residential Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Non-accrual loans without allowance	3,000,000		3,000,000		3,600,000
Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Non-accrual loans without allowance	$ 3,300,000		$ 3,300,000		$ 2,300,000

Loan and Lease Receivables a_15

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Allowance for Credit Losses and Corresponding Loan and Lease Balances (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	$ 99,730	$ 92,665	$ 101,686	$ 81,924	$ 81,924
Adjustment for acquired PCD loans		10,596		10,596
Provision/(recapture) for credit losses	7,597	24,044	21,366	7,865
Charge-offs	(9,059)	(6,179)	(26,759)	(14,752)	(27,601)
Recoveries	592	749	2,567	3,884
Ending balance	98,860	105,696	98,860	105,696	101,686
Individually evaluated for impairment	24,993	28,334	24,993	28,334
Collectively evaluated for impairment	73,867	77,362	73,867	77,362
Individually evaluated for impairment	88,478	116,410	88,478	116,410
Collectively evaluated for impairment	6,790,968	6,496,893	6,790,968	6,496,893
Total loans and leases	6,879,446	6,613,303	6,879,446	6,613,303	6,684,306
Commercial Real Estate
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	27,852	26,377	33,237	26,061	26,061
Adjustment for acquired PCD loans		8,230		8,230
Provision/(recapture) for credit losses	1,210	4,854	(1,592)	1,614
Charge-offs	(1,615)	(1,360)	(5,113)	(5,271)	(9,729)
Recoveries	193	124	1,108	1,111
Ending balance	27,640	34,985	27,640	34,985	33,237
Individually evaluated for impairment	6,547	13,199	6,547	13,199
Collectively evaluated for impairment	21,093	21,786	21,093	21,786
Individually evaluated for impairment	34,260	67,596	34,260	67,596
Collectively evaluated for impairment	2,328,087	2,221,164	2,328,087	2,221,164
Total loans and leases	2,362,347	2,288,760	2,362,347	2,288,760	2,320,312
Residential Real Estate
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	3,023	2,544	3,495	3,140	3,140
Adjustment for acquired PCD loans		660		660
Provision/(recapture) for credit losses	(121)	290	(595)	941
Charge-offs	0	(12)	0	(21)	(21)
Recoveries	3	18	5	82
Ending balance	2,905	4,151	2,905	4,151	3,495
Individually evaluated for impairment	82	0	82	0
Collectively evaluated for impairment	2,823	4,151	2,823	4,151
Individually evaluated for impairment	3,591	0	3,591	0
Collectively evaluated for impairment	706,781	722,032	706,781	722,032
Total loans and leases	710,372	722,032	710,372	722,032	719,530
Construction, Land Development, and Other Land
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	2,723	1,935	2,906	3,134	3,134
Adjustment for acquired PCD loans		97		97
Provision/(recapture) for credit losses	(115)	(31)	(298)	1,168
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Ending balance	2,608	3,200	2,608	3,200	2,906
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	2,608	3,200	2,608	3,200
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	499,812	523,008	499,812	523,008
Total loans and leases	499,812	523,008	499,812	523,008	526,837
Commercial and Industrial
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	57,584	53,640	53,782	41,889	41,889
Adjustment for acquired PCD loans		1,609		1,609
Provision/(recapture) for credit losses	6,286	17,293	22,683	3,329
Charge-offs	(6,948)	(4,200)	(20,097)	(8,087)	(15,411)
Recoveries	313	460	867	2,134
Ending balance	57,235	54,838	57,235	54,838	53,782
Individually evaluated for impairment	18,364	15,135	18,364	15,135
Collectively evaluated for impairment	38,871	39,703	38,871	39,703
Individually evaluated for impairment	50,627	48,814	50,627	48,814
Collectively evaluated for impairment	2,540,928	2,385,511	2,540,928	2,385,511
Total loans and leases	2,591,555	2,434,325	2,591,555	2,434,325	2,448,561
Installment and Other
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	30	43	36	24	24
Adjustment for acquired PCD loans		0		0
Provision/(recapture) for credit losses	16	19	10	4
Charge-offs	0	(3)	0	(3)	(3)
Recoveries	0	0	0	4
Ending balance	46	44	46	44	36
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	46	44	46	44
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	3,981	3,246	3,981	3,246
Total loans and leases	3,981	3,246	3,981	3,246	3,200
Lease Financing Receivables
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	8,518	8,126	8,230	7,676	7,676
Adjustment for acquired PCD loans		0		0
Provision/(recapture) for credit losses	321	1,619	1,158	809
Charge-offs	(496)	(604)	(1,549)	(1,370)	(2,437)
Recoveries	83	147	587	553
Ending balance	8,426	8,478	8,426	8,478	8,230
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	8,426	8,478	8,426	8,478
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	711,379	641,932	711,379	641,932
Total loans and leases	$ 711,379	$ 641,932	$ 711,379	$ 641,932	$ 665,866

Loan and Lease Receivables a_16

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Loans with Modified Terms (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
% of Class of Loans and Leases	0.10%	0.40%	0.10%	1%
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
% of Class of Loans and Leases	0%	1.10%	0.10%	2.60%
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
% of Class of Loans and Leases	0.20%		0.20%
Payment Delay
Financing Receivable, Allowance for Credit Loss [Line Items]
Total troubled debt restructurings		$ 0		$ 383
Payment Delay | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total troubled debt restructurings		0		383
Term Modification
Financing Receivable, Allowance for Credit Loss [Line Items]
Total troubled debt restructurings	$ 4,122	25,136	$ 7,618	62,394
Term Modification | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total troubled debt restructurings	245	25,136	2,298	62,394
Term Modification | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total troubled debt restructurings	3,877		5,320
Combination Term Modification and Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total troubled debt restructurings		0		374
Combination Term Modification and Interest Rate Reduction | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total troubled debt restructurings		0		374
Total Modified by Class
Financing Receivable, Allowance for Credit Loss [Line Items]
Total troubled debt restructurings	4,122	25,136	7,618	63,151
Total Modified by Class | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total troubled debt restructurings	245	$ 25,136	2,298	$ 63,151
Total Modified by Class | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total troubled debt restructurings	$ 3,877		$ 5,320

Loan and Lease Receivables a_17

Loan and Lease Receivables and Allowance for Credit Losses - Summary Of Collateral Dependent Loans And Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	$ 78,089	$ 113,494
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	34,260	64,339
Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	3,590	3,593
Construction, Land Development, and Other Land
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses		813
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	40,239	44,749
Commercial Construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	813
Commercial Construction | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Commercial Construction | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Commercial Construction | Construction, Land Development, and Other Land
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses		813
Commercial Construction | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Non-owner Occupied Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	6,775	28,767
Non-owner Occupied Commercial | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	6,775	28,767
Non-owner Occupied Commercial | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Non-owner Occupied Commercial | Construction, Land Development, and Other Land
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses		0
Non-owner Occupied Commercial | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Owner Occupied Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	27,485	35,572
Owner Occupied Commercial | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	27,485	35,572
Owner Occupied Commercial | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Owner Occupied Commercial | Construction, Land Development, and Other Land
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses		0
Owner Occupied Commercial | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Multi-Family
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	2,221	2,793
Multi-Family | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Multi-Family | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	2,221	2,793
Multi-Family | Construction, Land Development, and Other Land
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses		0
Multi-Family | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Single Family Residence (1st Lien)
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	790	800
Single Family Residence (1st Lien) | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Single Family Residence (1st Lien) | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	790	800
Single Family Residence (1st Lien) | Construction, Land Development, and Other Land
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses		0
Single Family Residence (1st Lien) | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Single Family Residence (2nd Lien)
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	579	0
Single Family Residence (2nd Lien) | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Single Family Residence (2nd Lien) | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	579	0
Single Family Residence (2nd Lien) | Construction, Land Development, and Other Land
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses		0
Single Family Residence (2nd Lien) | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	38,578	44,749
Business Assets | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Business Assets | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Business Assets | Construction, Land Development, and Other Land
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses		0
Business Assets | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	38,578	44,749
Other Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	1,661	0
Other Assets | Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Other Assets | Residential Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	0	0
Other Assets | Construction, Land Development, and Other Land
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses		0
Other Assets | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total allowance for credit losses	$ 1,661	$ 0

Loan and Lease Receivables a_18

Loan and Lease Receivables and Allowance for Credit Losses - Summary of Change in Balance for Reserve for Unfunded Commitments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Receivables [Abstract]
Beginning balance	$ 2,555	$ 3,639	$ 3,636	$ 4,203
Provision/(recapture) for/of unfunded commitments	(122)	937	(1,203)	373
Ending balance	$ 2,433	$ 4,576	$ 2,433	$ 4,576

Servicing Assets - Activity for

Servicing Assets - Activity for Servicing Assets and Related Changes in Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Transfers and Servicing [Abstract]
Beginning balance	$ 19,617	$ 21,715	$ 19,844	$ 19,172
Additions, net	1,511	1,674	4,455	4,426
Changes in fair value	(2,183)	(3,646)	(5,354)	(3,855)
Ending balance	$ 18,945	$ 19,743	$ 18,945	$ 19,743

Servicing Assets - Unpaid Princ

Servicing Assets - Unpaid Principal Balances of Loans Serviced for Others (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Loan portfolios serviced for:
Unpaid principal balances of loans serviced	$ 1,702,512	$ 1,728,343
SBA guaranteed loans
Loan portfolios serviced for:
Unpaid principal balances of loans serviced	1,514,175	1,530,401
USDA guaranteed loans
Loan portfolios serviced for:
Unpaid principal balances of loans serviced	$ 188,337	$ 197,942

Servicing Assets - Additional I

Servicing Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accounts Notes And Loans Receivable [Line Items]
Changes in fair value of servicing assets	$ (2,183)	$ (3,646)	$ (5,354)	$ (3,855)
Loan Servicing Revenue [Member]
Accounts Notes And Loans Receivable [Line Items]
Fair value of servicing assets	$ 3,200	$ 3,400	$ 9,800	$ 10,100

Other Real Estate Owned - Chang

Other Real Estate Owned - Change in Other Real Estate Owned (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Real Estate [Abstract]
Other real estate owned, beginning balance	$ 780	$ 2,265	$ 1,200	$ 4,717
Net additions to OREO	30	72	35	571
Proceeds from sales of OREO	(260)	(614)	(740)	(3,173)
Gains (losses) on sales of OREO	(18)	(39)	37	(88)
Valuation adjustments	0	(13)	0	(356)
Other real estate owned, ending balance	$ 532	$ 1,671	$ 532	$ 1,671

Other Real Estate Owned - Addit

Other Real Estate Owned - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Real Estate [Line Items]
Residential consumer mortgage loans in process of foreclosure	$ 818,000,000		$ 818,000,000		$ 27,000,000
Proceeds from sale of internally financed sales of OREO	$ 0	$ 0	$ 0	$ 0

Leases - Additional Information

Leases - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Lessee Lease Description [Line Items]
Lessor, Operating Lease Maturity Year			2036
Weighted-average discount rate of operating leases	3.10%		3.10%		2.90%
Weighted average remaining life of operating leases	5 years 1 month 6 days		5 years 1 month 6 days		6 years 1 month 6 days
Minimum rental to be received in future on subleases	$ 974,000,000		$ 974,000,000
Sublease contract maturity year			2028
Operating cash flows paid for operating lease	950,000	$ 1,400,000	$ 3,100,000	$ 3,100,000
Right-of-use lease assets in exchange for operating lease liabilities	687,000	3,800,000	1,800,000	4,800,000
Operating right-of-use assets	10,070,000		10,070,000		$ 12,474,000
Termination payments				471,000
Gain on termination				838,000
Inland Bancorp, Inc.
Lessee Lease Description [Line Items]
Operating right-of-use assets		3,800,000		3,800,000
Impairment charge related to acquisition	$ 0	$ 394,000,000	$ 194,000,000	$ 394,000,000

Leases - Schedule of Operating

Leases - Schedule of Operating Lease Right-of-use Asset and Liability (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Lessee Lease Description [Line Items]
Operating lease right-of-use asset	$ 10,070	$ 12,474
Operating lease liability	$ 11,361	$ 14,268

Leases - Summary of Lease Costs

Leases - Summary of Lease Costs and Company's Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Leases [Abstract]
Operating lease cost	$ 666	$ 770	$ 2,051	$ 2,014
Short-term lease cost	120	127	386	295
Variable lease cost	423	470	1,257	1,239
Less: Sublease income	(131)	(160)	(391)	(475)
Total lease cost, net	$ 1,078	$ 1,207	$ 3,303	$ 3,073

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments for Operating Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Leases [Abstract]
2024	$ 945
2025	3,395
2026	2,484
2027	1,576
2028	1,254
Thereafter	2,927
Total undiscounted lease payments	12,581
Less: Imputed interest	(1,220)
Net lease liabilities	$ 11,361	$ 14,268

Goodwill, Core Deposit Intang_3

Goodwill, Core Deposit Intangible and Other Intangible Assets - Summary of Changes in Goodwill, Core Deposit Intangible Assets and Customer Relationship Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Schedule Of Goodwill And Intangible Assets [Line Items]
Beginning balance, Goodwill	$ 181,705	$ 148,353	$ 181,705	$ 148,353
Additions		33,352		33,352
Ending balance, Goodwill	181,705	181,705	181,705	181,705
Amortization	(1,345)	(1,551)	(4,035)	(4,461)
Core Deposits
Schedule Of Goodwill And Intangible Assets [Line Items]
Beginning balance	17,837	6,110	20,393	8,886
Additions		17,250		17,250
Amortization	(1,278)	(1,484)	(3,834)	(4,260)
Ending balance	16,559	21,876	16,559	21,876
Accumulated amortization	$ 56,157	$ 50,840	$ 56,157	$ 50,840
Weighted average remaining amortization period	7 years 8 months 12 days	8 years 4 months 24 days	7 years 8 months 12 days	8 years 4 months 24 days
Customer Relationships
Schedule Of Goodwill And Intangible Assets [Line Items]
Beginning balance	$ 1,246	$ 1,514	$ 1,380	$ 1,648
Amortization	(67)	(67)	(201)	(201)
Ending balance	1,179	1,447	1,179	1,447
Accumulated amortization	$ 2,037	$ 1,769	$ 2,037	$ 1,769
Weighted average remaining amortization period	4 years 4 months 24 days	5 years 4 months 24 days	4 years 4 months 24 days	5 years 4 months 24 days

Goodwill, Core Deposit Intang_4

Goodwill, Core Deposit Intangible and Other Intangible Assets - Estimated Amortization Expense for Core Deposit Intangible and Customer Relationship Intangible Recognized (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2024	$ 1,345
2025	4,473
2026	3,566
2027	2,676
2028	2,101
Thereafter	3,577
Total	$ 17,738

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($)	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024	Dec. 31, 2023
Income Tax [Line Items]
Effective tax rate	25.10%	26%
Net income tax benefit related to vesting of restricted shares	$ 1,300,000	$ 196,000
Deferred tax assets, net	$ 37,700,000			$ 50,100,000
State and Local Jurisdiction
Income Tax [Line Items]
Net operating loss carryforwards			$ 500,000

Deposits - Composition of Depos

Deposits - Composition of Deposits (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Deposits [Abstract]
Non-interest-bearing demand deposits	$ 1,729,908	$ 1,905,876
Interest-bearing checking accounts	749,721	577,609
Money market demand accounts	2,426,522	2,266,030
Other savings	489,618	542,532
Time deposits (below $250,000)	1,639,658	1,520,082
Time deposits ($250,000 and above)	462,460	364,870
Total deposits	$ 7,497,887	$ 7,176,999

Deposits - Scheduled maturity o

Deposits - Scheduled maturity of time deposits (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Deposits [Abstract]
2024	$ 638,936
2025	1,448,003
2026	8,622
2027	4,981
2028	1,121
Thereafter	455
Total	$ 2,102,118

Deposits - Additional Informati

Deposits - Additional Information (Details) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Deposits [Abstract]
Time deposits	$ 250,000	$ 250,000
Time deposit brokered	$ 428,600,000	$ 480,000,000

Other Borrowings - Summary of O

Other Borrowings - Summary of Other Borrowings (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Disclosure [Abstract]
Federal Home Loan Bank advances	$ 470,000	$ 325,000
Securities sold under agreements to repurchase	35,453	40,607
Term loan	13,333	18,333
Line of credit	0	11,250
Total	$ 518,786	$ 395,190

Other Borrowings - Additional I

Other Borrowings - Additional Information (Details) - USD ($)			9 Months Ended	12 Months Ended
	May 25, 2025	Oct. 10, 2019	Sep. 30, 2024	Dec. 31, 2023	May 24, 2024	Jan. 22, 2024	Oct. 13, 2016
Line Of Credit Facility [Line Items]
Federal Reserve Bank discount window borrowing			$ 0	$ 0
Federal home loan bank advances, Fixed interest rate			5%
Federal home loan bank advances maximum borrowing capacity as percentage of total assets			35%
Federal home loan bank, required investment conversion ratio			4.5
Line of credit facility, amount			$ 0	$ 11,250,000
Line of Credit Facility, Interest Rate				7.39%
Federal Home Loan Bank fixed rate advances			250,000,000
Federal Home Loan Bank Variable Rate Advances			$ 220,000,000
Federal Home Loan Bank, Advances, Interest Rate			4.94%
Variable term loan, Interest rate			7.50%	7.64%
Term Loan			$ 13,333,000	$ 18,333,000
Revolving Credit Facility
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity					$ 15,000,000
Forecast
Line Of Credit Facility [Line Items]
Line of credit facility, extended maturity date	May 25, 2025
Federal Reserve Bank Advances
Line Of Credit Facility [Line Items]
Bank Term Funding Program						$ 200,000,000
Debt instrument, interest rate						4.91%
Correspondent Bank | Ridgestone
Line Of Credit Facility [Line Items]
Line of credit facility, interest rate terms			The amended revolving line of credit bears interest at either the Secured Overnight Financing Rate ("SOFR") plus 205 basis points or Prime Rate minus 75 basis points, not to be less than 2.00%, based on the Company’s election, which is required to be communicated at least three business days prior to the commencement of an interest period. If the Company fails to provide timely notification, the interest rate will be Prime Rate minus 75 basis points.
Correspondent Bank | Credit agreement | Ridgestone
Line Of Credit Facility [Line Items]
Line of credit facility, amount							$ 30,000,000
Correspondent Bank | Fourth Amendment Revolving Credit Agreement | Ridgestone
Line Of Credit Facility [Line Items]
Line of credit facility, amount			$ 0				$ 15,000,000
Line of credit facility, interest rate terms			At September 30, 2024, the line of credit had a no outstanding balance.
Correspondent Bank | Amended Credit Agreement | Ridgestone | Prime Rate
Line Of Credit Facility [Line Items]
Interest rate spread		0.75%
Correspondent Bank | Amended Credit Agreement | Ridgestone | SOFR
Line Of Credit Facility [Line Items]
Interest rate spread		2.05%

Other Borrowings - Summary of S

Other Borrowings - Summary of Short-term Credit Lines Available for Use (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Federal Home Loan Bank Line
Debt Instrument [Line Items]
Short-term credit lines available for use	$ 2,878,966	$ 2,781,747
Federal Reserve Bank of Chicago Discount Window Line
Debt Instrument [Line Items]
Short-term credit lines available for use	780,977	866,490
Available Federal Funds Line
Debt Instrument [Line Items]
Short-term credit lines available for use	$ 127,500	$ 123,750

Subordinated Notes and Junior_3

Subordinated Notes and Junior Subordinated Debentures - Additional Information (Details) - USD ($) $ in Thousands				9 Months Ended
		Sep. 15, 2023	Sep. 14, 2023	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2020
Debt Instrument [Line Items]
Principal amount				$ 87,000	$ 87,000
Adjustment spread Interest rate				0.26161%
Three-Month CME Secured Overnight Financing Rate Plus Tenor Spread Adjustment
Debt Instrument [Line Items]
Adjustment spread Interest rate				0.26161%
Fixed-To-Floating Subordinate Notes Mature on July 1, 2030 | Subordinated Notes
Debt Instrument [Line Items]
Debt instrument, face amount						$ 75,000
Debt instrument, interest rate						6%
Debt instrument, maturity date				Jul. 01, 2030
Debt instrument, redemption, description				As of September 30, 2024, the net liability outstanding of the subordinated notes was $74.0 million. The Company may, at its option, redeem the notes, in whole or in part, on a semi-annual basis beginning on July 1, 2025, subject to obtaining the prior approval of the Federal Reserve to the extent such approval is then required.
Debt issuance costs						$ 1,700
Debt issuance costs, amortization period				10 years
Loans				$ 74,000
Fixed-To-Floating Subordinate Notes Mature on July 1, 2030 | Subordinated Notes | Three-Month Secured Overnight Financing Rate Plus 588 Basis Points
Debt Instrument [Line Items]
Debt instrument, description of variable rate basis				The subordinated notes bear a fixed interest rate of 6.00% until July 1, 2025 and a floating interest rate equal to a benchmark rate, which is expected to be the three-month SOFR, plus 588 basis points thereafter until maturity.
Metropolitan Statutory Trust 1
Debt Instrument [Line Items]
Principal amount				$ 35,000	$ 35,000
Metropolitan Statutory Trust 1 | Junior Subordinated Debentures
Debt Instrument [Line Items]
Debt instrument, maturity date				Mar. 17, 2034
Debt instrument, description of variable rate basis	[1]			SOFR + spread adjustment + 2.79%
Interest rate spread	[1]			2.79%
Contractual rate				7.99%	8.43%
Metropolitan Statutory Trust 1 | Junior Subordinated Debentures | Three-Month CME Secured Overnight Financing Rate Plus Tenor Spread Adjustment
Debt Instrument [Line Items]
Interest rate spread				2.79%
Adjustment spread Interest rate			0.26161%
First Evanston Bancorp Trust I
Debt Instrument [Line Items]
Principal amount				$ 10,000	$ 10,000
First Evanston Bancorp Trust I | Junior Subordinated Debentures
Debt Instrument [Line Items]
Debt instrument, maturity date				Mar. 15, 2035
Debt instrument, description of variable rate basis	[1]			SOFR + spread adjustment + 1.78%
Interest rate spread	[1]			1.78%
Contractual rate				6.99%	7.43%
First Evanston Bancorp Trust I | Junior Subordinated Debentures | Three-Month CME Secured Overnight Financing Rate Plus Tenor Spread Adjustment
Debt Instrument [Line Items]
Interest rate spread				1.78%
Adjustment spread Interest rate		0.26161%
[1] (1) SOFR is three-month SOFR and the spread adjustment is 0.26161 %

Subordinated Notes and Junior_4

Subordinated Notes and Junior Subordinated Debentures - Junior Subordinated Debentures by Issuance (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2024	Dec. 31, 2023
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Total liability, at par		$ 87,000	$ 87,000
Total liability, at carrying value		$ 70,783	70,452
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Three Month SOFR and Spread Adjustment [Member]
Metropolitan Statutory Trust 1
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Total liability, at par		$ 35,000	35,000
First Evanston Bancorp Trust I
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Total liability, at par		10,000	10,000
AmeriMark Capital Trust I
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Total liability, at par		5,000	5,000
Inland Bancorp Trust II
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Total liability, at par		10,000	10,000
Inland Bancorp Trust III
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Total liability, at par		10,000	10,000
Inland Bancorp Trust IV
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Total liability, at par		7,000	7,000
Inland Bancorp Trust V
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Total liability, at par		10,000	10,000
Junior Subordinated Debentures
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Discount		$ (16,217)	$ (16,548)
Junior Subordinated Debentures | Metropolitan Statutory Trust 1
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Stated Maturity		Mar. 17, 2034
Contractual Rate		7.99%	8.43%
Interest Rate Spread, Description	[1]	SOFR + spread adjustment + 2.79%
Interest Rate Spread	[1]	2.79%
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate Plus Spread Adjustment [Member]
Junior Subordinated Debentures | First Evanston Bancorp Trust I
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Stated Maturity		Mar. 15, 2035
Contractual Rate		6.99%	7.43%
Interest Rate Spread, Description	[1]	SOFR + spread adjustment + 1.78%
Interest Rate Spread	[1]	1.78%
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate Plus Spread Adjustment [Member]
Junior Subordinated Debentures | AmeriMark Capital Trust I
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Stated Maturity		Apr. 23, 2034
Contractual Rate		8.29%
Interest Rate Spread, Description	[1]	SOFR + spread adjustment + 2.75%
Interest Rate Spread	[1]	2.75%
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate Plus Spread Adjustment [Member]
Junior Subordinated Debentures | Inland Bancorp Trust II
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Stated Maturity		Sep. 15, 2035
Contractual Rate		6.81%
Interest Rate Spread, Description	[1]	SOFR + spread adjustment + 1.60%
Interest Rate Spread	[1]	1.60%
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate Plus Spread Adjustment [Member]
Junior Subordinated Debentures | Inland Bancorp Trust III
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Stated Maturity		Dec. 15, 2036
Contractual Rate		6.86%
Interest Rate Spread, Description	[1]	SOFR + spread adjustment + 1.65%
Interest Rate Spread	[1]	1.65%
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate Plus Spread Adjustment [Member]
Junior Subordinated Debentures | Inland Bancorp Trust IV
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Stated Maturity		Jun. 06, 2037
Contractual Rate		6.88%
Interest Rate Spread, Description	[1]	SOFR + spread adjustment + 1.62%
Interest Rate Spread	[1]	1.62%
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate Plus Spread Adjustment [Member]
Junior Subordinated Debentures | Inland Bancorp Trust V
Shares Subject To Mandatory Redemption By Settlement Terms [Line Items]
Stated Maturity		Sep. 15, 2037
Contractual Rate		6.63%
Interest Rate Spread, Description	[1]	SOFR + spread adjustment + 1.42%
Interest Rate Spread	[1]	1.42%
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate Plus Spread Adjustment [Member]
[1] (1) SOFR is three-month SOFR and the spread adjustment is 0.26161 %

Subordinated Notes and Junior_5

Subordinated Notes and Junior Subordinated Debentures - Junior Subordinated Debentures by Issuance (Parenthetical) (Details)	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Adjustment spread Interest rate	0.26161%
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Three Month SOFR and Spread Adjustment [Member]

Commitments and Contingent Li_3

Commitments and Contingent Liabilities - Summary of Contract or Notional Amount of Outstanding Loan and Lease Commitments (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Commitments And Contingencies Liabilities [Line Items]
Fixed Rate	$ 205,496	$ 269,937
Variable Rate	1,908,422	2,081,262
Total	2,113,918	2,351,199
Commitments to Extend Credit
Commitments And Contingencies Liabilities [Line Items]
Fixed Rate	204,866	269,325
Variable Rate	1,845,018	2,013,819
Total	2,049,884	2,283,144
Letters of Credit
Commitments And Contingencies Liabilities [Line Items]
Fixed Rate	630	612
Variable Rate	63,404	67,443
Total	$ 64,034	$ 68,055

Commitments and Contingent Li_4

Commitments and Contingent Liabilities - Additional Information (Details)	9 Months Ended
	Sep. 30, 2024
Commitments And Contingencies Liabilities [Line Items]
Fixed rate loan commitments maturity year	2052
Variable rate loan commitments maturity year	2053
Maximum
Commitments And Contingencies Liabilities [Line Items]
Commitments to make loans period	90 days
Loan commitments fixed interest rate	15%
Loan commitments variable interest rate	18%
Minimum
Commitments And Contingencies Liabilities [Line Items]
Loan commitments fixed interest rate	1%
Loan commitments variable interest rate	4%

Fair Value Measurement - Summar

Fair Value Measurement - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 1,502,108		$ 1,342,480
Equity and other securities, at fair value	9,132		8,743
Servicing assets, at fair value	18,945	$ 19,617	19,844	$ 19,743	$ 21,715	$ 19,172
Derivative assets	$ 40,620		$ 56,923
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Property, Plant and Equipment, Net		Property, Plant and Equipment, Net
Derivative liabilities	$ 14,513		$ 19,345
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued Interest Payable And Other Liabilities		Accrued Interest Payable And Other Liabilities
U.S. Treasury Notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 42,512		$ 115,434
U.S. Government Agencies
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	150,539		130,695
Obligations of States, Municipalities, and Political Subdivisions
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	82,283		82,275
Corporate Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	38,077		36,171
Asset-Backed Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	15,411		34,638
Fair Value, Measurements, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Servicing assets, at fair value	18,945		19,844
Derivative assets	40,620		56,923
Derivative liabilities	14,513		19,345
Fair Value, Measurements, Recurring | U.S. Treasury Notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	42,512		115,434
Fair Value, Measurements, Recurring | U.S. Government Agencies
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	150,539		130,695
Fair Value, Measurements, Recurring | Obligations of States, Municipalities, and Political Subdivisions
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	82,283		82,275
Fair Value, Measurements, Recurring | Mortgage-Backed Securities; Residential | Agency
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	812,787		695,803
Fair Value, Measurements, Recurring | Mortgage-Backed Securities; Residential | Non-Agency
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	128,330		100,260
Fair Value, Measurements, Recurring | Mortgage-Backed Securities; Commercial | Agency
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	232,169		147,204
Fair Value, Measurements, Recurring | Corporate Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	38,077		36,171
Fair Value, Measurements, Recurring | Asset-Backed Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	15,411		34,638
Fair Value, Measurements, Recurring | Mutual Funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Equity and other securities, at fair value	2,605		2,554
Fair Value, Measurements, Recurring | Equity Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Equity and other securities, at fair value	6,527		6,189
Fair Value, Measurements, Recurring | Level 1 | U.S. Treasury Notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	42,512		115,434
Fair Value, Measurements, Recurring | Level 1 | Mutual Funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Equity and other securities, at fair value	2,605		2,554
Fair Value, Measurements, Recurring | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets	40,620		56,923
Derivative liabilities	14,513		19,345
Fair Value, Measurements, Recurring | Level 2 | U.S. Government Agencies
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	150,539		130,695
Fair Value, Measurements, Recurring | Level 2 | Obligations of States, Municipalities, and Political Subdivisions
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	82,283		82,275
Fair Value, Measurements, Recurring | Level 2 | Mortgage-Backed Securities; Residential | Agency
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	812,787		695,803
Fair Value, Measurements, Recurring | Level 2 | Mortgage-Backed Securities; Residential | Non-Agency
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	128,330		100,260
Fair Value, Measurements, Recurring | Level 2 | Mortgage-Backed Securities; Commercial | Agency
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	232,169		147,204
Fair Value, Measurements, Recurring | Level 2 | Corporate Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	38,077		36,171
Fair Value, Measurements, Recurring | Level 2 | Asset-Backed Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available-for-sale	15,411		34,638
Fair Value, Measurements, Recurring | Level 2 | Equity Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Equity and other securities, at fair value	6,239		5,908
Fair Value, Measurements, Recurring | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Servicing assets, at fair value	18,945		19,844
Fair Value, Measurements, Recurring | Level 3 | Equity Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Equity and other securities, at fair value	$ 288		$ 281

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Details) - USD ($)	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Fair value, assets, to or from level 3 transfers, amount	$ 0		$ 0
Fair value, equity, to or from level 3 transfers, amount	$ 0	$ 0

Fair Value Measurement - Summ_2

Fair Value Measurement - Summary of Financial Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Equity Securities, FV-NI, Realized Gain (Loss)	Equity Securities, FV-NI, Realized Gain (Loss)
Investment Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Balance, beginning of period	$ 281	$ 666
Additions, net	0	0
Maturity	0	(400)
Accretion of discount	0	82
Change in fair value	7	(67)
Balance, end of period	288	281
Servicing Assets
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Balance, beginning of period	19,844	19,172
Additions, net	4,455	4,426
Maturity	0	0
Accretion of discount	0	0
Change in fair value	(5,354)	(3,855)
Balance, end of period	$ 18,945	$ 19,743

Fair Value Measurement - Summ_3

Fair Value Measurement - Summary of Unobservable Inputs Used in the Fair Value Measurements on Recurring Basis (Details) - Fair Value, Measurements, Recurring - Level 3	9 Months Ended
	Sep. 30, 2024
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt Instrument, Valuation Technique [Extensible List]	Single Issuer Trust Preferred
Servicing Asset, Valuation Technique [Extensible List]	Servicing Assets
Single Issuer Trust Preferred
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impact to Valuation from an Increased or Higher Input Value	Decrease
Unobservable Inputs	0.079
Single Issuer Trust Preferred | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Unobservable Inputs	0.079
Servicing Assets | Prepayment Speeds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impact to Valuation from an Increased or Higher Input Value	Decrease
Servicing Assets | Prepayment Speeds | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Unobservable Inputs	0
Servicing Assets | Prepayment Speeds | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Unobservable Inputs	0.347
Servicing Assets | Prepayment Speeds | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Unobservable Inputs	0.168
Servicing Assets | Discount Rate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impact to Valuation from an Increased or Higher Input Value	Decrease
Servicing Assets | Discount Rate | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Unobservable Inputs	0.061
Servicing Assets | Discount Rate | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Unobservable Inputs	0.568
Servicing Assets | Discount Rate | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Unobservable Inputs	0.117
Servicing Assets | Expected Weighted Average Loan life
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impact to Valuation from an Increased or Higher Input Value	Increase
Servicing Assets | Expected Weighted Average Loan life | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Expected weighted average loan life	0 years
Servicing Assets | Expected Weighted Average Loan life | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Expected weighted average loan life	8 years
Servicing Assets | Expected Weighted Average Loan life | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Expected weighted average loan life	3 years 7 months 6 days

Fair Value Measurement - Summ_4

Fair Value Measurement - Summary of Assets Measured at Fair Value on Non-Recurring Basis, Excluding Acquired Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Commercial Real Estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value	$ 27,713	$ 51,978
Residential Real Estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value	3,509	3,593
Construction, Land Development, and Other Land
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value		813
Commercial and Industrial
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value	32,263	29,869
Other Real Estate Owned
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value	532	1,200
Assets Held For Sale
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value	2,676	4,484
Level 3 | Commercial Real Estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value	27,713	51,978
Level 3 | Residential Real Estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value	3,509	3,593
Level 3 | Construction, Land Development, and Other Land
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value		813
Level 3 | Commercial and Industrial
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value	32,263	29,869
Level 3 | Other Real Estate Owned
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value	532	1,200
Level 3 | Assets Held For Sale
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Assets, Fair Value	$ 2,676	$ 4,484

Fair Value Measurement - Summ_5

Fair Value Measurement - Summary of Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financial assets
Cash and due from banks	$ 77,047	$ 60,431
Interest bearing deposits with other banks	375,549	165,705
Securities held-to-maturity, fair value	603	1,149
Restricted stock, at cost	22,743	16,304
Loans held for sale	19,955	18,005
Loans and lease receivables, net (less impaired loans at fair value)	6,780,586	6,582,620
Financial liabilities
Federal Home Loan Bank advances	470,000	325,000
Securities sold under agreements to repurchase	35,453	40,607
Term Loan	13,333	18,333
Line of credit	0	11,250
Subordinated notes, net	73,997	73,866
Junior subordinated debentures	70,783	70,452
Level 1 | Carrying Amount
Financial assets
Cash and due from banks	77,047	60,431
Level 1 | Estimate of Fair Value Measurement
Financial assets
Cash and due from banks	77,047	60,431
Level 2 | Carrying Amount
Financial assets
Interest bearing deposits with other banks	375,549	165,705
Securities held-to-maturity, fair value	605	1,157
Restricted stock, at cost	22,743	16,304
Financial liabilities
Non-interest-bearing deposits	1,729,908	1,905,876
Interest-bearing deposits	5,767,979	5,271,123
Accrued interest payable	20,162	22,233
Federal Home Loan Bank advances	470,000	325,000
Securities sold under agreements to repurchase	35,453	40,607
Term Loan	13,333	18,333
Line of credit	0	11,250
Subordinated notes, net	73,997	73,866
Level 2 | Estimate of Fair Value Measurement
Financial assets
Interest bearing deposits with other banks	375,549	165,705
Securities held-to-maturity, fair value	603	1,149
Restricted stock, at cost	22,743	16,304
Financial liabilities
Non-interest-bearing deposits	1,729,908	1,905,876
Interest-bearing deposits	5,770,206	5,268,926
Accrued interest payable	20,162	22,233
Federal Home Loan Bank advances	470,000	325,000
Securities sold under agreements to repurchase	35,453	40,607
Term Loan	13,333	18,333
Line of credit	0	11,250
Subordinated notes, net	73,802	76,063
Level 3 | Carrying Amount
Financial assets
Loans held for sale	19,955	18,005
Loans and lease receivables, net (less impaired loans at fair value)	6,717,101	6,496,367
Accrued interest receivable	40,731	43,922
Financial liabilities
Junior subordinated debentures	70,783	70,452
Level 3 | Estimate of Fair Value Measurement
Financial assets
Loans held for sale	20,672	19,136
Loans and lease receivables, net (less impaired loans at fair value)	6,538,295	6,326,413
Accrued interest receivable	40,731	43,922
Financial liabilities
Junior subordinated debentures	$ 74,635	$ 72,701

Derivative Instruments and He_3

Derivative Instruments and Hedge Activities - Summary of Derivative Financial Instruments and Classification on Consolidated Statements of Financial Condition (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Jul. 01, 2023
Derivatives Fair Value [Line Items]
Notional Amount	$ 1,467,206	$ 1,359,728
Other Assets	40,620	56,923
Other Liabilities	(14,513)	(19,345)
Cash Flow Hedges
Derivatives Fair Value [Line Items]
Notional Amount	650,000
Other Assets	26,198
Other Liabilities	0
Interest Rate Swap | Cash Flow Hedges
Derivatives Fair Value [Line Items]
Notional Amount	42,000
Other Assets	3,500
Other Interest Rate Derivatives
Derivatives Fair Value [Line Items]
Notional Amount	804,488
Other Assets	14,417
Other Liabilities	(14,485)
Other Interest Rate Derivatives | Cash Flow Hedges
Derivatives Fair Value [Line Items]
Notional Amount	450,000
Derivatives Designated as Hedging Instruments | Interest Rate Swap | Cash Flow Hedges
Derivatives Fair Value [Line Items]
Notional Amount	650,000	650,000
Other Assets	26,198	37,475
Other Liabilities	0	0
Derivatives Not Designated As Hedging Instruments | Other Credit Derivatives
Derivatives Fair Value [Line Items]
Notional Amount	12,718	3,602
Other Assets	5	1
Other Liabilities	(28)	0
Derivatives Not Designated As Hedging Instruments | Interest Rate Swap
Derivatives Fair Value [Line Items]
Notional Amount			$ 67,700
Derivatives Not Designated As Hedging Instruments | Other Interest Rate Derivatives
Derivatives Fair Value [Line Items]
Notional Amount	804,488	706,126
Other Assets	14,417	19,447
Other Liabilities	$ (14,485)	$ (19,345)

Derivative Instruments and He_4

Derivative Instruments and Hedge Activities - Additional Information (Details) - USD ($)		3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 01, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Jun. 30, 2023	May 30, 2023	Mar. 31, 2023
Derivative [Line Items]
Derivative notional amount		$ 1,467,206,000		$ 1,467,206,000		$ 1,359,728,000
Other Assets		40,620,000		40,620,000		56,923,000
Interest recorded		3,919,000	$ 3,981,000	12,203,000	$ 14,110,000
Net unrealized gain		13,500,000		13,500,000
Fair value of derivatives net liability position		14,500,000		14,500,000
Offsetting derivative positions		2,021,000		2,021,000		925,000
Interest Rate Swap
Derivative [Line Items]
Net gain on termination of interest rate swap agreements	$ 6,000
Interest recorded		4,600,000	4,600,000	14,200,000	10,400,000
Other Interest Rate Derivatives
Derivative [Line Items]
Derivative notional amount		804,488,000		804,488,000
Other Assets		$ 14,417,000		$ 14,417,000
Weighted average pay rates		4.59%		4.59%
Derivative Weighted Average Receive Rate		5.41%		5.41%
Derivative maturity date, start year				2024-10
Derivative maturity date, end year				2033-03
Derivative instruments transaction fees		$ 811,000	$ 115,000	$ 925,000	$ 587,000
Other Credit Derivatives
Derivative [Line Items]
Derivative notional amount		10,400,000		10,400,000		1,200,000
Notional amount of nonderivative instruments				2,300,000		2,400,000
Cash Flow Hedging
Derivative [Line Items]
Derivative notional amount		650,000,000		650,000,000
Other Assets		$ 26,198,000		$ 26,198,000
Weighted average pay rates		8.30%		8.30%
Derivative Weighted Average Receive Rate		1.04%		1.04%
Cash Flow Hedging | Interest Rate Swap
Derivative [Line Items]
Derivative notional amount		$ 42,000,000		$ 42,000,000
Other Assets		3,500,000		3,500,000
Cash Flow Hedging | Other Interest Rate Derivatives
Derivative [Line Items]
Derivative notional amount		450,000,000		450,000,000
Cash Flow Hedging | Fixed Interest Rate Swap
Derivative [Line Items]
Derivative notional amount		$ 200,000,000		$ 200,000,000
Weighted average pay rates		5.13%		5.13%
Derivative Weighted Average Receive Rate		7.30%		7.30%
Designated as Hedging Instrument | Cash Flow Hedging
Derivative [Line Items]
Terminated swaps							$ 50,000,000	$ 50,000,000
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap
Derivative [Line Items]
Derivative notional amount		$ 650,000,000		$ 650,000,000		650,000,000
Other Assets		26,198,000		26,198,000		37,475,000
Terminated swaps									$ 100,000,000
Remaining balance in accumulated other comprehensive income		4,200,000		4,200,000
Remaining unamortized balance		3,000,000		3,000,000		3,700,000
Designated as Hedging Instrument | Cash Flow Hedging | Fixed Interest Rate Swap
Derivative [Line Items]
Derivative notional amount		$ 200,000,000		$ 200,000,000
Investment, Type [Extensible Enumeration]		us-gaap:AdjustableRateLoansMember		us-gaap:AdjustableRateLoansMember
Designated as Hedging Instrument | Cash Flow Hedging | Fixed Interest Rate Swap | Deposits And Other Borrowings
Derivative [Line Items]
Derivative notional amount		$ 450,000,000		$ 450,000,000
Derivatives Not Designated As Hedging Instruments
Derivative [Line Items]
Fair value of derivative assets and liabilities	6,200,000
Derivatives Not Designated As Hedging Instruments | Interest Rate Swap
Derivative [Line Items]
Derivative notional amount	$ 67,700,000
Derivatives Not Designated As Hedging Instruments | Other Interest Rate Derivatives
Derivative [Line Items]
Derivative notional amount		804,488,000		804,488,000		706,126,000
Other Assets		$ 14,417,000		$ 14,417,000		$ 19,447,000

Derivative Instruments and He_5

Derivative Instruments and Hedge Activities - Summary of Cash Flow Hedges (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Notional Amount	$ 1,467,206	$ 1,359,728
Derivative assets fair value	40,620	56,923
Derivative liabilities fair value	14,513	$ 19,345
Cash Flow Hedges
Derivative [Line Items]
Notional Amount	650,000
Derivative assets fair value	26,198
Derivative liabilities fair value	$ 0
Weighted average remaining maturity	2 years 2 months 12 days

Derivative Instruments and He_6

Derivative Instruments and Hedge Activities - Summary of Net Gains (Losses) Recorded in Accumulated Other Comprehensive Income (Loss) and Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Derivative [Line Items]
Amount of Gain Recognized in OCI	$ (3,784)	$ 4,648	$ 2,417	$ 13,357
Derivative Instrument, Gain (Loss) Reclassified from OCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]			Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax
Interest Rate Swap
Derivative [Line Items]
Amount of Gain Recognized in OCI			$ 2,417	13,357
Amount of Net Gain Reclassified from OCI to Income as an Increase to Net Interest Income			14,192	10,381
Amount of Gain (Loss) Recognized in Other Non-Interest Income			$ 0	$ 0

Derivative Instruments and He_7

Derivative Instruments and Hedge Activities - Summary of Other Interest Rate Derivatives (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Notional Amount	$ 1,467,206	$ 1,359,728
Derivative assets fair value	40,620	56,923
Derivative liabilities fair value	14,513	$ 19,345
Other Interest Rate Derivatives
Derivative [Line Items]
Notional Amount	804,488
Derivative assets fair value	14,417
Derivative liabilities fair value	$ 14,485
Weighted average pay rates	4.59%
Weighted average receive rates	5.41%
Weighted average remaining maturity	4 years

Derivative Instruments and He_8

Derivative Instruments and Hedge Activities - Summary of Amounts Included in Non-Interest Income in Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Derivative [Line Items]
Amounts relating to derivative instruments, not designated in hedging relationship	$ 270	$ 423	$ 123	$ 230
Other Credit Derivatives
Derivative [Line Items]
Amounts relating to derivative instruments, not designated in hedging relationship	7	0	(47)	0
Other Interest Rate Derivatives
Derivative [Line Items]
Amounts relating to derivative instruments, not designated in hedging relationship	$ 263	$ 423	$ 170	$ 230

Derivative Instruments and He_9

Derivative Instruments and Hedge Activities - Summary of Company's Interest Rate Derivative and Offsetting Positions (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative assets fair value	$ 40,620	$ 56,923
Less: Amounts offset in the Consolidated Statements of Financial Condition	0	0
Net amount presented in the Consolidated Statements of Financial Condition	40,620	56,923
Gross amounts not offset in the Consolidated Statements of Financial Condition
Offsetting derivative positions	(2,021)	(925)
Collateral posted	(35,590)	(54,930)
Net credit exposure	3,009	1,068
Derivative liabilities fair value	(14,513)	(19,345)
Less: Amounts offset in the Consolidated Statements of Financial Condition	0	0
Net amount presented in the Consolidated Statements of Financial Condition	(14,513)	(19,345)
Gross amounts not offset in the Consolidated Statements of Financial Condition
Offsetting derivative positions	2,021	925
Collateral posted	0	0
Net credit exposure	$ (12,492)	$ (18,420)

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 30, 2014	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Jun. 30, 2017	Oct. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, voting par value		$ 0.01		$ 0.01		$ 0.01
Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of options exercised		205,652	29,766	293,638	29,766
Restricted Shares | Threshold performance
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vest on grant date				294,819
Restricted Shares | Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of restricted voting common stock granted				376,799
Common stock, voting par value		$ 0.01		$ 0.01
Restricted Shares | Common Stock | Each Anniversary of Grant Date Vest Over Three Years
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period				3 years
Restricted Shares | Common Stock | Third Anniversary of Grant Date
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vest on grant date				12,861
Restricted Shares | Common Stock | First Anniversary Of Grant Date
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vest on grant date				3,083
Performance-based Restricted Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of restricted voting common stock granted				66,036
Period for number of shares earned under return on average assets				3 years
Performance Share
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate				4.47%		4.42%
Simulation term				2 years 10 months 6 days		2 years 10 months 6 days
Share price		$ 20.18		$ 20.18		$ 25.2
Performance Share | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility				33.68%		39.80%
Performance Share | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected volatility				29.28%		38.11%
Omnibus Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common stock reserved for issuance							2,600,000
Number of common shares available for future grants		806,210		806,210
Omnibus Plan | Restricted Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of restricted voting common stock granted				376,799
Restricted shares vested				240,380		238,638
Fair value of restricted shares, vested				$ 5,100,000		$ 5,700,000
Fair value of unvested restricted stock awards		$ 20,400,000		$ 20,400,000
Share price		$ 23.04		$ 23.04		$ 24.24
Omnibus Plan | Time Options Grants | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period				4 years
Omnibus Plan | Time Options Grants | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period				1 year
BYB Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common shares available for future grants							0
Number of options granted	1,846,968
Number of shares outstanding		365,423		365,423		768,564
Number of options exercised				403,141		0
Proceeds from exercise of stock options				$ 2,100,000
Tax benefit from exercise of stock options				$ 1,500,000
Options vested				0		0
Stock option compensation expense				$ 0		$ 0
BYB Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common shares available for future grants								2,476,122
BYB Plan | Time Options Grants
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award contractual term				10 years
BYB Plan | Time Options Grants | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period				5 years
BYB Plan | Time Options Grants | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period				1 year
BYB Plan | Performance Options Grants
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award contractual term				10 years
BYB Plan | Performance Options Grants | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period				5 years
BYB Plan | Performance Options Grants | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period				1 year
FEB Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares outstanding		66,330		66,330		103,135
Number of options exercised				36,805		59,153
Proceeds from exercise of stock options				$ 430,000		$ 659,000
Tax benefit from exercise of stock options				$ 148,000		$ 158,000
Conversion calculation percentage		4.725%		4.725%

Share-Based Compensation - Summ

Share-Based Compensation - Summary of fair value of the total stock return performance-based awards granted (Details) - Performance Share - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Risk-free interest rate	4.47%	4.42%
Expected term (years)	2 years 10 months 6 days	2 years 10 months 6 days
Weighted average grant date fair value	$ 20.18	$ 25.2
Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected stock price volatility	33.68%	39.80%
Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected stock price volatility	29.28%	38.11%

Share-Based Compensation - Su_2

Share-Based Compensation - Summary of Changes in Restricted Shares (Details) - Omnibus Plan - Restricted Shares - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, beginning balance	627,271
Number of shares, granted	376,799
Incremental performance shares issued and vested	13,632
Number of shares, vested	(240,380)	(238,638)
Number of shares, forfeited	(15,148)
Number of shares, ending balance	762,174	627,271
Weighted average grant date fair value, beginning balance	$ 24.24
Weighted average grant date fair value, granted	20.92
Weighted average grant date fair value, vested	22.57
Weighted average grant date fair value, forfeited	24.28
Weighted average grant date fair value, ending balance	$ 23.04	$ 24.24

Share-Based Compensation - Su_3

Share-Based Compensation - Summary of Stock Compensation Expense (Details) - Restricted Shares - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total share-based compensation - restricted stock	$ 5,582	$ 4,922
Income tax benefit	1,517	1,322
Unrecognized compensation expense	$ 11,567	$ 11,189
Weighted-average remaining amortization period	1 year 10 months 24 days	2 years 1 month 6 days

Share-Based Compensation - Su_4

Share-Based Compensation - Summary Activity in shares Subjected to Options and Weighted Average Exercise Prices (Details) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares
BYB Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Beginning balance | shares	768,564
Number of Shares, Exercised | shares	(403,141)	0
Number of Shares, Ending balance | shares	365,423	768,564
Number of Shares, Exercisable | shares	365,423
Weighted Average Exercise Price, Beginning balance | $ / shares	$ 11.31
Weighted Average Exercise Price, Exercised | $ / shares	11.18
Weighted Average Exercise Price, Ending balance | $ / shares	11.46	$ 11.31
Weighted Average Exercise Price, Exercisable | $ / shares	$ 11.46
Intrinsic Value, Beginning balance | $	$ 9,413
Intrinsic Value, Exercised | $	5,556
Intrinsic Value, Ending balance | $	5,596	$ 9,413
Intrinsic Value, Exercisable | $	$ 5,596
Weighted Average Remaining Contractual Term (in Years)	9 months 18 days	1 year 6 months
Weighted Average Remaining Contractual Term (in Years), Exercisable	9 months 18 days
FEB Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Beginning balance | shares	103,135
Number of Shares, Exercised | shares	(36,805)	(59,153)
Number of Shares, Ending balance | shares	66,330	103,135
Number of Shares, Exercisable | shares	66,330
Weighted Average Exercise Price, Beginning balance | $ / shares	$ 11.95
Weighted Average Exercise Price, Exercised | $ / shares	11.68
Weighted Average Exercise Price, Ending balance | $ / shares	12.1	$ 11.95
Weighted Average Exercise Price, Exercisable | $ / shares	$ 12.1
Intrinsic Value, Beginning balance | $	$ 1,197
Intrinsic Value, Exercised | $	554
Intrinsic Value, Ending balance | $	973	$ 1,197
Intrinsic Value, Exercisable | $	$ 973
Weighted Average Remaining Contractual Term (in Years)	1 year 7 months 6 days	1 year 10 months 24 days
Weighted Average Remaining Contractual Term (in Years), Exercisable	1 year 7 months 6 days

Earnings per Share - Additional

Earnings per Share - Additional Information (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share Basic [Line Items]
Shares outstanding	43,516,006	43,025,927	43,379,038	39,027,450
Antidilutive weighted average shares outstanding	0	0	0	0
Common Stock
Earnings Per Share Basic [Line Items]
Shares outstanding			431,753	901,086
Restricted Stock Award
Earnings Per Share Basic [Line Items]
Shares outstanding			762,174	675,222

Earnings per Share - Schedule o

Earnings per Share - Schedule of Calculation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Net Income (Loss)	$ 30,328	$ 28,222	$ 90,439	$ 78,274
Weighted-average common stock outstanding:
Weighted-average common stock outstanding (basic)	43,516,006	43,025,927	43,379,038	39,027,450
Incremental shares	450,183	432,183	384,156	435,402
Weighted-average common stock outstanding (dilutive)	43,966,189	43,458,110	43,763,194	39,462,852
Basic earnings per common share	$ 0.7	$ 0.66	$ 2.08	$ 2.01
Diluted earnings per common share	$ 0.69	$ 0.65	$ 2.07	$ 1.98

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Preferred and Common Stock (Details) - $ / shares	Sep. 30, 2024	Dec. 31, 2023
Equity [Abstract]
Par value per share	$ 0.01	$ 0.01
Shares authorized	25,000,000	25,000,000
Shares issued	0	0
Shares outstanding	0	0
Common stock, voting par value	$ 0.01	$ 0.01
Common stock, voting shares authorized	150,000,000	150,000,000
Common stock, voting shares issued	46,180,735	45,714,241
Common stock, voting shares outstanding	44,384,706	43,764,056
Common stock, voting treasury shares	1,796,029	1,950,185

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Details) - $ / shares		3 Months Ended		9 Months Ended
	Oct. 22, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 06, 2023	Dec. 12, 2022
Class Of Stock [Line Items]
Aggregate number of shares authorized to repurchase						1,250,000	1,250,000
Approximate percentage of shares authorized to be repurchased						2.90%
Number of shares purchased				0	0
Common stock, cash dividends paid		$ 0.09	$ 0.09	$ 0.27	$ 0.27
Subsequent Event
Class Of Stock [Line Items]
Cash dividend declared	$ 0.09
Subsequent Event | O 2024 Q4 Dividends
Class Of Stock [Line Items]
Dividend payable date	Nov. 19, 2024
Subsequent Event | O 2024 Q4 1Dividends
Class Of Stock [Line Items]
Dividends record date	Nov. 05, 2024

Consolidated Statements of Ch_3

Consolidated Statements of Change in Accumulated Other Comprehensive Income (Loss) - Schedule of Consolidated Statements of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	$ 1,033,014	$ 813,942	$ 990,151	$ 765,816
Other comprehensive income (loss), net of tax	32,791	(27,297)	21,439	(24,609)
Ending balance	1,096,312	919,945	1,096,312	919,945
Unrealized Gains on Cash Flow Hedges
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	27,672	36,433	30,131	34,315
Other comprehensive income (loss), net of tax	(6,175)	63	(8,634)	2,181
Ending balance	21,497	36,496	21,497	36,496
Unrealized Losses on Available-for-Sale Securities
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(139,141)	(151,295)	(130,248)	(151,865)
Other comprehensive income (loss), net of tax	38,966	(27,360)	30,073	(26,790)
Ending balance	(100,175)	(178,655)	(100,175)	(178,655)
Total Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(111,469)	(114,862)	(100,117)	(117,550)
Other comprehensive income (loss), net of tax	32,791	(27,297)	21,439	(24,609)
Ending balance	$ (78,678)	$ (142,159)	$ (78,678)	$ (142,159)