WesBanco (WSBC) 10-Q 1 Aug 24 2024 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2024	Jul. 25, 2024
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Entity Registrant Name	WESBANCO, INC.
Entity Central Index Key	0000203596
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding		59,587,710
Entity Shell Company	false
Entity File Number	001-39442
Entity Incorporation, State or Country Code	WV
Entity Tax Identification Number	55-0571723
Entity Address, Address Line One	1 Bank Plaza
Entity Address, City or Town	Wheeling
Entity Address, State or Province	WV
Entity Address, Postal Zip Code	26003
City Area Code	304
Local Phone Number	234-9000
Document Quarterly Report	true
Document Transition Report	false
Common Stock
Document Information [Line Items]
Trading Symbol	WSBC
Title of 12(b) Security	Common Stock $2.0833 Par Value
Security Exchange Name	NASDAQ
Depositary Shares
Document Information [Line Items]
Trading Symbol	WSBCP
Title of 12(b) Security	Depositary Shares (each representing 1/40th interest in a share of 6.75% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A)
Security Exchange Name	NASDAQ

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
ASSETS
Cash and due from banks, including interest bearing amounts of $312,973 and $436,879, respectively	$ 486,789	$ 595,383
Securities:
Equity securities, at fair value	13,091	12,320
Available-for-sale debt securities, at fair value	2,102,123	2,194,329
Held-to-maturity debt securities (fair values of $1,028,432 and $1,069,159, respectively)	1,179,684	1,199,527
Allowance for credit losses, held-to-maturity debt securities	(163)	(192)
Net held-to-maturity debt securities	1,179,521	1,199,335
Total securities	3,294,735	3,405,984
Loans held for sale	25,433	16,354
Portfolio loans, net of unearned income	12,257,511	11,638,461
Allowance for credit losses - loans	(136,509)	(130,675)
Net portfolio loans	12,121,002	11,507,786
Premises and equipment, net	222,266	233,571
Accrued interest receivable	79,759	77,435
Goodwill and other intangible assets, net	1,128,103	1,132,267
Bank-owned life insurance	358,682	355,033
Other assets	411,606	388,561
Total Assets	18,128,375	17,712,374
Deposits:
Non-interest bearing demand	3,826,249	3,962,592
Interest bearing demand	3,505,651	3,463,443
Money market	2,283,294	2,017,713
Savings deposits	2,429,241	2,493,254
Certificates of deposit	1,387,938	1,231,702
Total deposits	13,432,373	13,168,704
Federal Home Loan Bank borrowings	1,475,000	1,350,000
Other short-term borrowings	105,757	105,893
Subordinated debt and junior subordinated debt	279,193	279,078
Total borrowings	1,859,950	1,734,971
Accrued interest payable	15,393	11,121
Other liabilities	276,380	264,516
Total Liabilities	15,584,096	15,179,312
SHAREHOLDERS' EQUITY
Preferred stock, no par value, 1,000,000 shares authorized; 150,000 shares 6.75% non-cumulative perpetual preferred stock, Series A, liquidation preference $150,000,000, issued and outstanding at June 30, 2024 and December 31, 2023, respectively	144,484	144,484
Common stock, $2.0833 par value; 100,000,000 shares authorized; 68,081,306 shares issued; 59,579,310 and 59,376,435 shares outstanding at June 30, 2024 and December 31, 2023, respectively	141,834	141,834
Capital surplus	1,630,830	1,635,859
Retained earnings	1,159,217	1,142,586
Treasury stock (8,501,996 and 8,704,871 shares - at cost, respectively)	(294,818)	(302,995)
Accumulated other comprehensive loss	(235,208)	(226,693)
Deferred benefits for directors	(2,060)	(2,013)
Total Shareholders' Equity	2,544,279	2,533,062
Total Liabilities and Shareholders' Equity	$ 18,128,375	$ 17,712,374

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($)	Jun. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Interest bearing deposits, banks	$ 312,973,000	$ 436,879,000
Held-to-maturity securities, fair values	$ 1,028,432,000	$ 1,069,159,000
Preferred stock, no par value
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	150,000	150,000
Preferred stock, shares outstanding	150,000	150,000
6.75% non-cumulative perpetual preferred stock, Series A, liquidation preference	$ 150,000,000	$ 150,000,000
Common stock, par value	$ 2.0833	$ 2.0833
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	68,081,306	68,081,306
Common stock, shares outstanding	59,579,310	59,376,435
Treasury stock, shares	8,501,996	8,704,871

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
INTEREST AND DIVIDEND INCOME
Loans, including fees	$ 175,361	$ 145,741	$ 342,335	$ 279,147
Interest and dividends on securities:
Taxable	16,929	18,483	34,334	37,569
Tax-exempt	4,556	4,723	9,142	9,513
Total interest and dividends on securities	21,485	23,206	43,476	47,082
Other interest income	6,147	7,108	12,516	10,380
Total interest and dividend income	202,993	176,055	398,327	336,609
INTEREST EXPENSE
Interest bearing demand deposits	26,925	17,203	52,516	28,309
Money market deposits	18,443	7,220	34,557	11,472
Savings deposits	7,883	5,860	15,549	9,860
Certificates of deposit	11,982	2,906	22,229	4,109
Total interest expense on deposits	65,233	33,189	124,851	53,750
Federal Home Loan Bank borrowings	16,227	16,713	33,227	28,013
Other short-term borrowings	896	492	1,570	909
Subordinated debt and junior subordinated debt	4,044	4,094	8,119	8,039
Total interest expense	86,400	54,488	167,767	90,711
NET INTEREST INCOME	116,593	121,567	230,560	245,898
Provision for credit losses	10,541	3,028	14,555	6,605
Net interest income after provision for credit losses	106,052	118,539	216,005	239,293
NON-INTEREST INCOME
Trust fees	7,303	6,918	15,385	14,412
Service charges on deposits	7,111	6,232	13,895	12,401
Digital banking income	5,040	5,010	9,745	9,615
Net swap fee and valuation income	1,776	2,612	3,339	3,411
Net securities brokerage revenue	2,601	2,523	5,149	5,098
Bank-owned life insurance	2,791	3,189	4,859	5,149
Mortgage banking income	1,069	601	1,762	1,027
Net securities gains	135	205	672	350
Net gain on other real estate owned and other assets	34	871	188	1,104
Other income	3,495	3,680	6,990	6,926
Total non-interest income	31,355	31,841	61,984	59,493
NON-INTEREST EXPENSE
Salaries and wages	43,991	44,471	86,988	86,422
Employee benefits	10,579	11,511	22,763	23,570
Net occupancy	6,309	6,132	12,932	12,775
Equipment and software	10,457	8,823	20,465	17,885
Marketing	2,371	2,763	4,256	5,088
FDIC insurance	3,523	2,871	6,971	5,755
Amortization of intangible assets	2,072	2,282	4,164	4,583
Restructuring and merger-related expense	3,777	35	3,777	3,188
Other operating expenses	19,313	17,549	37,269	33,294
Total non-interest expense	102,392	96,437	199,585	192,560
Income before provision for income taxes	35,015	53,943	78,404	106,226
Provision for income taxes	6,099	9,063	13,795	19,005
Net income	28,916	44,880	64,609	87,221
Preferred stock dividends	2,531	2,531	5,063	5,063
Net income available to common shareholders	$ 26,385	$ 42,349	$ 59,546	$ 82,158
EARNINGS PER COMMON SHARE
Basic	$ 0.44	$ 0.71	$ 1	$ 1.39
Diluted	$ 0.44	$ 0.71	$ 1	$ 1.38
AVERAGE COMMON SHARES OUTSTANDING
Basic	59,521,872	59,263,949	59,452,315	59,240,958
Diluted	59,656,429	59,385,847	59,592,960	59,389,314
DIVIDENDS DECLARED PER COMMON SHARE	$ 0.36	$ 0.35	$ 0.72	$ 0.7

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 28,916	$ 44,880	$ 64,609	$ 87,221
Debt securities available-for-sale:
Net change in unrealized losses on debt securities available-for-sale	(210)	(40,018)	(11,113)	(3,408)
Related income tax effect	50	9,709	2,835	927
Net securities losses reclassified into earnings	12	8	12	159
Related income tax effect	(61)	(2)	(119)	(39)
Net effect on other comprehensive loss for the period	(209)	(30,303)	(8,385)	(2,361)
Defined benefit plans:
Amortization of net (gain) loss and prior service costs	(101)	99	(202)	198
Related income tax effect	24	(24)	72	(48)
Net effect on other comprehensive (loss) income for the period	(77)	75	(130)	150
Total other comprehensive loss	(286)	(30,228)	(8,515)	(2,211)
Comprehensive income	$ 28,630	$ 14,652	$ 56,094	$ 85,010

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock	Capital Surplus [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Deferred Benefits for Directors [Member]
Beginning Balance at Dec. 31, 2022	$ 2,426,662	$ 144,484	$ 141,834	$ 1,635,877	$ 1,077,675	$ (308,964)	$ (262,416)	$ (1,828)
Beginning Balance, shares at Dec. 31, 2022			59,198,963
Net income	87,221				87,221
Other comprehensive loss	(2,211)						(2,211)
Comprehensive income	85,010
Common dividends declared	(41,145)				(41,145)
Preferred dividends declared	(5,063)				(5,063)
Stock issued for dividend reinvestment					(553)	553
Stock issued for dividend reinvestment, shares			15,180
Treasury shares acquired	(3,749)					(3,749)
Treasury shares acquired, shares			(162,700)
Stock options exercised	126			(46)		172
Stock options exercised, shares			5,491
Restricted stock granted				(8,218)		8,218
Restricted stock granted, shares			298,128
Stock compensation expense	3,334			3,334
Deferred benefits for directors- net	(177)			16				(193)
Ending Balance at Jun. 30, 2023	2,464,998	144,484	$ 141,834	1,630,963	1,118,135	(303,770)	(264,627)	(2,021)
Ending Balance, shares at Jun. 30, 2023			59,355,062
Beginning Balance at Mar. 31, 2023	2,475,457	144,484	$ 141,834	1,636,061	1,096,924	(307,507)	(234,399)	(1,940)
Beginning Balance, shares at Mar. 31, 2023			59,246,569
Net income	44,880				44,880
Other comprehensive loss	(30,228)						(30,228)
Comprehensive income	14,652
Common dividends declared	(20,585)				(20,585)
Preferred dividends declared	(2,531)				(2,531)
Stock issued for dividend reinvestment					(553)	553
Stock issued for dividend reinvestment, shares			15,180
Treasury shares acquired	(3,697)					(3,697)
Treasury shares acquired, shares			(161,306)
Stock options exercised	23			(12)		35
Stock options exercised, shares			1,050
Restricted stock granted				(6,846)		6,846
Restricted stock granted, shares			253,569
Stock compensation expense	1,749			1,749
Deferred benefits for directors- net	(70)			11				(81)
Ending Balance at Jun. 30, 2023	2,464,998	144,484	$ 141,834	1,630,963	1,118,135	(303,770)	(264,627)	(2,021)
Ending Balance, shares at Jun. 30, 2023			59,355,062
Beginning Balance at Dec. 31, 2023	2,533,062	144,484	$ 141,834	1,635,859	1,142,586	(302,995)	(226,693)	(2,013)
Beginning Balance, shares at Dec. 31, 2023			59,376,435
Net income	64,609				64,609
Other comprehensive loss	(8,515)						(8,515)
Comprehensive income	56,094
Common dividends declared	(42,392)				(42,392)
Preferred dividends declared	(5,063)				(5,063)
Stock issued for dividend reinvestment					(523)	523
Stock issued for dividend reinvestment, shares			14,058
Treasury shares acquired	(1,441)					(1,441)
Treasury shares acquired, shares			(49,729)
Stock options exercised	176			(126)		302
Stock options exercised, shares			8,139
Restricted stock granted				(8,793)		8,793
Restricted stock granted, shares			230,407
Stock compensation expense	3,867			3,867
Deferred benefits for directors- net	(24)			23				(47)
Ending Balance at Jun. 30, 2024	2,544,279	144,484	$ 141,834	1,630,830	1,159,217	(294,818)	(235,208)	(2,060)
Ending Balance, shares at Jun. 30, 2024			59,579,310
Beginning Balance at Mar. 31, 2024	2,538,362	144,484	$ 141,834	1,636,964	1,154,307	(302,264)	(234,922)	(2,041)
Beginning Balance, shares at Mar. 31, 2024			59,395,777
Net income	28,916				28,916
Other comprehensive loss	(286)						(286)
Comprehensive income	28,630
Common dividends declared	(21,214)				(21,214)
Preferred dividends declared	(2,531)				(2,531)
Stock issued for dividend reinvestment					(261)	261
Stock issued for dividend reinvestment, shares			6,878
Treasury shares acquired	(1,355)					(1,355)
Treasury shares acquired, shares			(46,696)
Stock options exercised	76			(52)		128
Stock options exercised, shares			3,375
Restricted stock granted				(8,412)		8,412
Restricted stock granted, shares			219,976
Stock compensation expense	2,320			2,320
Deferred benefits for directors- net	(9)			10				(19)
Ending Balance at Jun. 30, 2024	$ 2,544,279	$ 144,484	$ 141,834	$ 1,630,830	$ 1,159,217	$ (294,818)	$ (235,208)	$ (2,060)
Ending Balance, shares at Jun. 30, 2024			59,579,310

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Stockholders' Equity [Abstract]
Common dividends declared, per share	$ 0.36	$ 0.35	$ 0.72	$ 0.7
Preferred dividends declared, per share	$ 16.875	$ 16.875	$ 16.875	$ 16.875

Consolidated Condensed Statemen

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
OPERATING ACTIVITIES
NET CASH PROVIDED BY OPERATING ACTIVITIES	$ 82,830	$ 57,941
INVESTING ACTIVITIES
Net increase in loans held for investment	(624,818)	(427,264)
Available-for-sale debt securities:
Proceeds from sales	0	28,317
Proceeds from maturities, prepayments and calls	129,661	167,849
Purchases of securities	(51,557)	(2,500)
Held-to-maturity debt securities:
Proceeds from maturities, prepayments and calls	18,847	22,929
Proceeds from bank owned life insurance	1	2,306
Purchases of premises and equipment – net	(1,897)	(16,916)
Net cash used in investing activities	(529,763)	(225,279)
FINANCING ACTIVITIES
Increase (decrease) in deposits	263,819	(269,018)
Proceeds from Federal Home Loan Bank borrowings	1,175,000	1,380,000
Repayment of Federal Home Loan Bank borrowings	(1,050,000)	(705,000)
Decrease in other short-term borrowings	(136)	(33,783)
Principal repayments of finance lease obligations	(1,665)	(1,148)
Dividends paid to common shareholders	(42,351)	(41,120)
Dividends paid to preferred shareholders	(5,063)	(5,063)
Treasury shares purchased - net	(1,265)	(3,623)
Net cash provided by financing activities	338,339	321,245
Net (decrease) increase in cash, cash equivalents and restricted cash	(108,594)	153,907
Cash, cash equivalents and restricted cash at beginning of the period	595,383	408,411
Cash, cash equivalents and restricted cash at end of the period	486,789	562,318
SUPPLEMENTAL DISCLOSURES
Interest paid on deposits and other borrowings	163,530	86,623
Income taxes paid	15,985	24,240
Transfers of loans to other real estate owned	$ 152	$ 147

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 28,916	$ 44,880	$ 64,609	$ 87,221

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Jun. 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
Rule 10b5-1 Arrangement Modified	false
Non-Rule 10b5-1 Arrangement Modified	false

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of presentation — The accompanying unaudited interim financial statements of Wesbanco, Inc. and its consolidated subsidiaries (“Wesbanco”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2023. Wesbanco’s interim financial statements have been prepared following the significant accounting policies disclosed in Note 1 of the Notes to the Consolidated Financial Statements of its 2023 Annual Report on Form 10-K filed with the Securities and Exchange Commission, as well as with the policy changes indicated below. In the opinion of management, the accompanying interim financial information reflects all adjustments, including normal recurring adjustments, necessary to present fairly Wesbanco’s financial position and results of operations for each of the interim periods presented. Certain prior period amounts have been reclassified to conform to the current period presentation. Such reclassifications had no impact on Wesbanco’s net income and shareholders’ equity. Results of operations for interim periods are not necessarily indicative of the results of operations that may be expected for a full year. Recent accounting pronouncements— The Financial Accounting Standards Board (“FASB”) issued Accounting Standards Updates (“ASU”) as noted below. ASU 2024-02 - Codification Improvements—Amendments to Remove References to the Concepts Statements In March 2024, the FASB issued ASU 2024-02, “Codification Improvements—Amendments to Remove References to the Concepts Statements.” The removal of all references to Concepts Statements in the guidance will simplify the Codification and draw a distinction between authoritative and nonauthoritative literature. For Wesbanco, the amendments in this Update are effective for fiscal years beginning after December 15, 2024. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements. ASU 2024-01 – Compensation – Stock Compensation (Topic 718) In March 2024, the FASB issued ASU 2024-01, “Stock Compensation (Topic 718).” The amendments in this Update are designed to improve GAAP by adding an illustrative example that includes four fact patterns to demonstrate how an entity should apply the scope guidance in paragraph 718-10-15-3 to determine whether a profits interest award should be accounted for in accordance with Topic 718. The illustrative example is intended to reduce (1) complexity in determining whether a profits interest award is subject to the guidance in Topic 718 and (2) existing diversity in practice. For Wesbanco, the amendments are effective for annual periods beginning after December 15, 2024, and interim periods within those annual periods. Early adoption is permitted for both interim and annual financial statements that have not yet been issued or made available for issuance. If an entity adopts the amendments in an interim period, it should adopt them as of the beginning of the annual period that includes that interim period. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements. ASU 2023-09 – Income Taxes (Topic 740): Improvements to Income Tax Disclosures In December 2023, the FASB issued ASU 2023-09, "Income Taxes (Topic 740)." The amendments in this Update related to the rate reconciliation and income taxes paid disclosures and are designed to improve the transparency of income tax disclosures by requiring (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) income taxes paid disaggregated by jurisdiction. For Wesbanco, the amendments are effective for annual periods beginning after December 15, 2024. Early adoption is permitted for annual financial statements that have not yet been issued or made available for issuance. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements. ASU 2023-08 – Intangibles-Goodwill and Other Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of a Crypto Asset In December 2023, the FASB issued ASU 2023-08, "Intangibles-Goodwill and Other Crypto Assets (Subtopic 350-60)." The amendments in this Update require that an entity measure crypto assets at fair value in the statement of financial position each reporting period and recognize changes from remeasurement in net income. The amendments also require that an entity provide enhanced disclosures for both annual and interim reporting periods to provide investors with relevant information to analyze and assess the exposure and risk of significant individual crypto asset holdings. In addition, fair value measurement aligns the accounting required for holders of crypto assets with the accounting for entities that are subject to certain industry-specific guidance (such as investment companies) and eliminates the requirement to test those assets for impairment, thereby reducing the associated cost and complexity of applying the current guidance. For Wesbanco, the amendments are effective beginning after December 15, 2024, including interim periods within those fiscal years. Early adoption is permitted. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements, as Wesbanco holds no crypto assets. ASU 2023-07—Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures In November 2023, the FASB issued ASU 2023-07, “Improvements to Reportable Segment Disclosures (Topic 280).” The amendments in this Update improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis for all public entities to enable investors to develop more decision-useful financial analyses. The amendments in this Update do not change how a public entity identifies its operating segments, aggregates those operating segments, or applies the quantitative thresholds to determine its reportable segments. For Wesbanco, the amendments are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements. ASU 2023-06 - Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative In October 2023, the FASB issued ASU 2023-06, "Disclosure Improvements." For entities subject to the SEC’s existing disclosure requirements and for entities required to file or furnish financial statements with or to the SEC in preparation for the sale of or for purposes of issuing securities that are not subject to contractual restrictions on transfer, the effective date for each amendment will be the date on which the SEC’s removal of that related disclosure from Regulation S-X or Regulation S-K becomes effective. If by June 30, 2027, the SEC has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the related amendment will be removed from the Codification and will not become effective for any entity. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements. ASU 2023-05 – Business Combinations—Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement In August 2023, the FASB issued ASU 2023-05, "Business Combinations - Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement," under which an entity that qualifies as either a joint venture or a corporate joint venture as defined in the FASB Accounting Standards Codification ("ASC") master glossary is required to apply a new basis of accounting upon the formation of the joint venture. Specifically, the ASU provides that a joint venture or a corporate joint venture (collectively, “joint ventures”) must initially measure its assets and liabilities at fair value on the formation date. For Wesbanco, the amendments are effective for all joint ventures within the ASU’s scope that are formed on or after January 1, 2025 . Early adoption is permitted in any annual or interim period as of the beginning of the related fiscal year. The adoption of this pronouncement is no t expected to have a material impact on the Consolidated Financial Statements. ASU 2023-02 – Investments Equity Method and Joint Ventures (Topic 323) In March 2023, the FASB issued ASU 2023-02, Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method. ASU 2023-02 allows reporting entities to elect to account for qualifying tax equity investments using the proportional amortization method, regardless of the program giving rise to the related income tax credits. The ASU’s amendments “remove the specialized guidance for [low-income-housing tax credit] investments that are not accounted for using the proportional amortization method and instead require that those LIHTC investments be accounted for using the guidance in other [GAAP].” For Wesbanco, the amendments were effective on January 1, 2024 . The adoption of this pronouncement did no t have a material impact on the Consolidated Financial Statements. ASU 2023-01 - Leases (Topic 842): Common Control Arrangements In March 2023, the FASB issued ASU 2023-01, Leases (Topic 842): Common Control Arrangements. ASU 2023-01 amends certain provisions of ASC 842 that apply to arrangements between related parties under common control. Additionally, ASU 2023-01 amends the accounting for leasehold improvements in common-control arrangements for all entities. For Wesbanco, the amendments were effective on January 1, 2024 . The adoption of this pronouncement did no t have a material impact on the Consolidated Financial Statements. ASU 2022-04 - Liabilities – Supplier Finance Programs (Sub-topic 405-50) In September 2022, the FASB issued ASU 2022-04, “Liabilities—Supplier Finance Programs (Subtopic 405-50).” The amendments in this ASU require that a buyer in a supplier finance program disclose sufficient information about the program to allow a user of financial statements to understand the program’s nature, activity during the period, changes from period to period, and potential magnitude. To achieve that objective, the buyer should disclose qualitative and quantitative information about its supplier finance programs. For Wesbanco, this update was effective beginning on January 1, 2023, except for the amendment on rollforward information, which was effective on January 1, 2024 . As this is not part of Wesbanco's current business activities, the adoption of this full pronouncement did no t have a material impact on the Consolidated Financial Statements. ASU 2022-03 - Fair Value Measurement (Topic 820) In June 2022, the FASB issued ASU 2022-03, "Fair Value Measurement (Topic 820).” The amendments in this ASU clarify that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security, and therefore, is not considered in measuring fair value. Furthermore, the amendments to this ASU clarify that an entity cannot, as a separate unit of account, recognize and measure a contractual sale restriction. The update to this ASU requires the following disclosures for equity securities: (1) the fair value of equity securities subject to contractual sale restrictions reflected in the balance sheet; (2) the nature and remaining duration of the restriction(s) and; (3) the circumstances that could cause a lapse in the restriction(s). The amendments in this Update were effective on January 1, 2024 . The adoption of this pronouncement did no t have a material impact on the Consolidated Financial Statements.

Earnings Per Common Share

Earnings Per Common Share	6 Months Ended
	Jun. 30, 2024
Earnings Per Share [Abstract]
Earnings Per Common Share	NOTE 2. EARNINGS PER COMMON SHARE Earnings per common share are calculated as follows: For the Three Months For the Six Months (unaudited, in thousands, except shares and per share amounts) 2024 2023 2024 2023 Numerator for both basic and diluted earnings per common share: Net income available to common shareholders $ 26,385 $ 42,349 $ 59,546 $ 82,158 Denominator: Total average basic common shares outstanding 59,521,872 59,263,949 59,452,315 59,240,958 Effect of dilutive stock options and other stock compensation 134,557 121,898 140,645 148,356 Total diluted average common shares outstanding 59,656,429 59,385,847 59,592,960 59,389,314 Earnings per common share - basic $ 0.44 $ 0.71 $ 1.00 $ 1.39 Earnings per common share - diluted $ 0.44 $ 0.71 $ 1.00 $ 1.38 As of June 30, 2024 and 2023 , 634,751 and 603,767 options to purchase shares were not included in the diluted share computation for the three and six months ended June 30, 2024 and 2023, respectively, because the exercise price was greater than the average market price of a common share, and, therefore, the effect would be antidilutive. As of June 30, 2024 , no shares were estimated to be awarded under the 2024, 2023 and 2022 total shareholder return ("TSR") plans and were not included in the diluted calculation as stock performance targets had not been met and the effect would be antidilutive. As of June 30, 2023 , 37,296 contingently issuable shares were estimated to be awarded under the 2022 and 2021 TSR plans, as stock performance targets had been met as of such date and therefore those shares were included in the diluted calculation. No shares related to the 2023 plan were included because the effect would be antidilutive. In addition, performance-based restricted stock ("PBRS") compensation totaling 104,594 and 68,767 shares were estimated to be awarded as of June 30, 2024 and June 30, 2023 , respectively.

Securities

Securities	6 Months Ended
	Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Securities	NOTE 3. SECURITIES The following table presents the fair value and amortized cost of available-for-sale and held-to-maturity debt securities: June 30, 2024 December 31, 2023 (unaudited, in thousands) Amortized Gross Gross Fair Amortized Gross Gross Fair Available-for-sale debt securities U.S. Treasury $ 49,099 $ 4 $ — 49,103 $ — $ — $ — $ — U.S. Government sponsored entities and agencies 231,912 — ( 32,654 ) 199,258 238,676 — ( 30,310 ) 208,366 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 1,791,043 51 ( 277,066 ) 1,514,028 1,897,511 47 ( 267,874 ) 1,629,684 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 261,150 40 ( 5,000 ) 256,190 274,220 11 ( 5,924 ) 268,307 Obligations of states and political subdivisions 75,609 6 ( 3,859 ) 71,756 78,819 167 ( 2,861 ) 76,125 Corporate debt securities 11,968 — ( 180 ) 11,788 11,962 — ( 115 ) 11,847 Total available-for-sale debt securities $ 2,420,781 $ 101 $ ( 318,759 ) $ 2,102,123 $ 2,501,188 $ 225 $ ( 307,084 ) $ 2,194,329 Held-to-maturity debt securities U.S. Government sponsored entities and agencies $ 3,300 $ — $ ( 321 ) $ 2,979 $ 3,587 $ — $ ( 313 ) $ 3,274 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 35,776 — ( 3,150 ) 32,626 38,893 — ( 3,017 ) 35,876 Obligations of states and political subdivisions 1,122,395 105 ( 147,546 ) 974,954 1,136,779 852 ( 127,518 ) 1,010,113 Corporate debt securities 18,213 — ( 340 ) 17,873 20,268 — ( 372 ) 19,896 Total held-to-maturity debt securities (1) $ 1,179,684 $ 105 $ ( 151,357 ) $ 1,028,432 $ 1,199,527 $ 852 $ ( 131,220 ) $ 1,069,159 Total debt securities $ 3,600,465 $ 206 $ ( 470,116 ) $ 3,130,555 $ 3,700,715 $ 1,077 $ ( 438,304 ) $ 3,263,488 (1) Total held-to-maturity debt securities are presented on the balance sheet net of their allowance for credit losses totaling $ 0.2 million at June 30, 2024 and December 31, 2023 . At June 30, 2024 and December 31, 2023 , there were no holdings of any one issuer, other than U.S. government sponsored entities and its agencies, in an amount greater than 10 % of Wesbanco’s shareholders’ equity. Equity securities, of which $ 10.6 million and $ 9.7 million at June 30, 2024 and December 31, 2023, respectively, consist of investments in various mutual funds held in grantor trusts formed in connection with the Company’s deferred compensation plan, are recorded at fair value, and totaled $ 13.1 million and $ 12.3 million at June 30, 2024 and December 31, 2023, respectively. The following table presents the amortized cost and fair value of available-for-sale and held-to-maturity debt securities by contractual maturity date at June 30, 2024. Actual maturities will differ from contractual maturities because borrowers may have the right to call or prepay debt obligations with or without prepayment penalties. Mortgage-backed securities and collateralized mortgage obligations are classified in the table below based on their contractual maturity date; however, regular principal payments and prepayments of principal are received on a monthly basis. (unaudited, in thousands) Amortized Cost Fair Value Available-for-sale debt securities Within one year $ 75,322 $ 75,127 After 1 year through 5 years 170,101 165,339 After 5 years through 10 years 295,411 278,986 After 10 years 1,879,947 1,582,671 Total available-for-sale debt securities $ 2,420,781 $ 2,102,123 Held-to-maturity debt securities Within one year $ 22,438 $ 22,325 After 1 year through 5 years 114,612 112,057 After 5 years through 10 years 501,534 453,682 After 10 years 541,100 440,368 Total held-to-maturity debt securities $ 1,179,684 $ 1,028,432 Total debt securities $ 3,600,465 $ 3,130,555 Securities with an aggregate carrying value of $ 2.0 billion and $ 2.1 billion at June 30, 2024 and December 31, 2023, respectively, were pledged as security for public and trust funds, and securities sold under agreements to repurchase. Proceeds from the sale of available-for-sale securities for the six months ended June 30, 2023 totaled $ 28.3 million . There were no security sales that occurred in the six months ended June 30, 2024. Net unrealized losses on available-for-sale securities included in accumulated other comprehensive income, net of tax, as of June 30, 2024 and December 31, 2023 were $ 241.6 million and $ 233.2 million , respectively. The following table presents the gross realized gains and losses on sales and calls of available-for-sale and held-to-maturity debt securities, as well as gains and losses on equity securities from both sales and market adjustments, for the three and six months ended June 30, 2024 and 2023, respectively. All gains and losses presented in the table below are included in the net securities gains (losses) line item of the consolidated income statement. For those equity securities relating to the key officer and director deferred compensation plan, the corresponding change in the obligation to the participant is recognized in employee benefits expense. For the Three Months For the Six Months (unaudited, in thousands) 2024 2023 2024 2023 Debt securities: Gross realized gains $ — $ 2 $ — $ 65 Gross realized losses ( 12 ) ( 9 ) ( 12 ) ( 206 ) Net losses on debt securities ( 12 ) ( 7 ) ( 12 ) ( 141 ) Equity securities: Net unrealized gains recognized on securities still held 147 212 684 491 Net securities gains $ 135 $ 205 $ 672 $ 350 The corporate and municipal bonds in Wesbanco’s held-to-maturity debt portfolio are analyzed quarterly to determine if an allowance for current expected credit losses is warranted. Wesbanco uses a database of historical financials of all corporate and municipal issuers and actual historic default and recovery rates on rated and non-rated transactions to estimate expected credit losses on an individual security basis. The expected credit losses are adjusted quarterly and are recorded in an allowance for expected credit losses on the balance sheet, which is deducted from the amortized cost basis of the held-to-maturity portfolio as a contra asset. The losses are recorded on the consolidated income statement in the provision for credit losses. Accrued interest receivable on held-to-maturity securities, which was $ 8.6 million and $ 8.8 million as of June 30, 2024 and December 31, 2023 , respectively, is excluded from the estimate of credit losses. Held-to-maturity investments in U.S. Government sponsored entities and agencies as well as mortgage-backed securities and collateralized mortgage obligations, which are all either issued by a direct governmental entity or a government-sponsored entity, have no historical evidence supporting expected credit losses; therefore, Wesbanco has estimated these losses at zero , and will monitor this assumption in the future for any economic or governmental policies that could affect this assumption. The following table provides a roll-forward of the allowance for credit losses on held-to-maturity securities for the six months ended June 30, 2024 and 2023: Allowance for Credit Losses By Category For the Six Months Ended June 30, 2024 and 2023 Obligations of states and Corporate political debt (unaudited, in thousands) subdivisions Securities Total Balance at December 31, 2023 $ 160 $ 32 $ 192 Current period provision (1) ( 12 ) ( 17 ) ( 29 ) Write-offs — — — Recoveries — — — Balance at June 30, 2024 $ 148 $ 15 $ 163 . Balance at December 31, 2022 $ 167 $ 53 $ 220 Current period provision (1) ( 12 ) ( 15 ) ( 27 ) Write-offs — — — Recoveries — — — Balance at June 30, 2023 $ 155 $ 38 $ 193 (1) The total provision for credit losses on held-to-maturity securities is reported in the consolidated statements of income in the provision for credit losses line item, which also includes the provision for credit losses - loans and loan commitments. For more information on the provision relating to loans and loan commitments, please see Note 4, "Loans and the Allowance for Credit Losses." The following tables provide information on unrealized losses on available-for-sale debt securities that have been in an unrealized loss position for less than twelve months and twelve months or more, for which an allowance for credit losses has not been recorded, as of June 30, 2024 and December 31, 2023, respectively: June 30, 2024 Less than 12 months 12 months or more Total (unaudited, dollars in thousands) Fair Unrealized # of Fair Unrealized # of Fair Unrealized # of U.S. Government sponsored entities and agencies $ — $ — — $ 199,258 $ ( 32,654 ) 45 $ 199,258 $ ( 32,654 ) 45 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies — — — 1,510,101 ( 277,066 ) 463 1,510,101 ( 277,066 ) 463 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies — — — 239,948 ( 5,000 ) 59 239,948 ( 5,000 ) 59 Obligations of states and political subdivisions 11,336 ( 190 ) 13 57,038 ( 3,669 ) 96 68,374 ( 3,859 ) 109 Corporate debt securities 4,481 ( 19 ) 4 7,307 ( 161 ) 2 11,788 ( 180 ) 6 Total $ 15,817 $ ( 209 ) 17 $ 2,013,652 $ ( 318,550 ) 665 $ 2,029,469 $ ( 318,759 ) 682 December 31, 2023 Less than 12 months 12 months or more Total (dollars in thousands) Fair Unrealized # of Fair Unrealized # of Fair Unrealized # of U.S. Government sponsored entities and agencies $ 18 $ ( 1 ) 1 $ 208,348 $ ( 30,309 ) 45 $ 208,366 $ ( 30,310 ) 46 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies — — — 1,625,144 ( 267,874 ) 467 1,625,144 ( 267,874 ) 467 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 5,520 ( 31 ) 1 251,765 ( 5,893 ) 60 257,285 ( 5,924 ) 61 Obligations of states and political subdivisions 10,387 ( 86 ) 19 49,002 ( 2,775 ) 79 59,389 ( 2,861 ) 98 Corporate debt securities 4,482 ( 18 ) 3 7,365 ( 97 ) 3 11,847 ( 115 ) 6 Total $ 20,407 $ ( 136 ) 24 $ 2,141,624 $ ( 306,948 ) 654 $ 2,162,031 $ ( 307,084 ) 678 Unrealized losses on debt securities in the table above represent temporary fluctuations resulting from changes in market rates in relation to fixed yields. Unrealized losses in the available-for-sale portfolio are accounted for as an adjustment, net of taxes, to other comprehensive income in shareholders’ equity. Wesbanco does not believe the securities presented above are impaired due to reasons of credit quality, as substantially all debt securities are rated above investment grade and all are paying principal and interest according to their contractual terms. Wesbanco does not intend to sell, nor is it more likely than not that it will be required to sell, loss position securities prior to recovery of their cost; therefore, management believes the unrealized losses detailed above do not require an allowance for credit losses relating to these securities to be recognized. Securities that do not have readily determinable fair values and for which Wesbanco does not exercise significant influence are carried at cost. Cost method investments consist primarily of Federal Home Loan Bank (“FHLB”) of Pittsburgh stock totaling $ 67.2 million and $ 62.0 million at June 30, 2024 and December 31, 2023, respectively, and are included in other assets in the Consolidated Balance Sheets. Cost method investments are evaluated for impairment whenever events or circumstances suggest that their carrying value may not be recoverable.

Loans and the Allowance for Cre

Loans and the Allowance for Credit Losses	6 Months Ended
	Jun. 30, 2024
Receivables [Abstract]
Loans and the Allowance for Credit Losses	NOTE 4. LOANS AND THE ALLOWANCE FOR CREDIT LOSSES The recorded investment in loans is presented in the Consolidated Balance Sheets net of deferred loan fees and costs, and discounts on purchased loans. Net deferred loan costs were $ 10.9 million and $ 11.5 million at June 30, 2024 and December 31, 2023 , respectively. The unaccreted discount on purchased loans from acquisitions was $ 12.0 million at June 30, 2024 and $ 13.5 million at December 31, 2023. June 30, December 31, (unaudited, in thousands) 2024 2023 Commercial real estate: Land and construction $ 1,061,390 $ 1,055,865 Improved property 5,937,498 5,509,583 Total commercial real estate 6,998,888 6,565,448 Commercial and industrial 1,760,479 1,670,659 Residential real estate 2,506,957 2,438,574 Home equity 770,599 734,219 Consumer 220,588 229,561 Total portfolio loans 12,257,511 11,638,461 Loans held for sale 25,433 16,354 Total loans $ 12,282,944 $ 11,654,815 Allowance for Credit Losses The allowance for credit losses under the current expected credit losses methodology ("CECL") is calculated utilizing the probability of default ("PD")/ loss given default ("LGD"), which is then discounted to net present value. PD is the probability the asset will default within a given time frame and LGD is the percentage of the asset not expected to be collected due to default. The primary macroeconomic drivers of the quantitative model include forecasts of national unemployment and interest rates, as well as modeling adjustments for changes in prepayment speeds, loan risk grades, portfolio mix, concentrations and loan growth. At June 30, 2024 , the primary drivers of the allowance model calculation were continued loan growth, adjustments in regional macroeconomic factors and loan concentrations, a specific reserve on one C&I credit and an increase in net charge-offs. The forecast was based upon a probability weighted approach which is designed to incorporate loss projections from a baseline, upside and downside economy. Due to the nonlinearity of credit losses to the economy, the asymmetry is best captured by evaluating multiple economic scenarios through a probability weighted approach. At quarter-end, national unemployment was projected to be 4.4 %, and subsequently increase to an average of 4.8 % over the remainder of the forecast period. In addition to the quantitative and qualitative changes noted above, the allowance is reflective of $ 8.2 million in net charge-offs recorded during the first half of 2024. Accrued interest receivable for loans was $ 65.1 million and $ 62.2 million at June 30, 2024 and December 31, 2023 , respectively. Wesbanco made an accounting policy election to exclude accrued interest from the measurement of the allowance for credit losses because the Company has a policy in place to reverse or write-off accrued interest when loans are placed on non-accrual. However, Wesbanco does have a $ 0.1 million reserve on the accrued interest related to loan modifications allowed under the Coronavirus Aid, Relief and Economic Security ("CARES") Act due to the timing and nature of these modifications. Accrued interest related to COVID-19 loan modifications as permitted under the CARES Act was $ 15.0 million and $ 15.6 million at June 30, 2024 and December 31, 2023, respectively. The following tables summarize changes in the allowance for credit losses applicable to each category of the loan portfolio: Allowance for Credit Losses By Category For the Six Months Ended June 30, 2024 and 2023 (unaudited, in thousands) Commercial Commercial Commercial Residential Home Consumer Deposit Total Balance at December 31, 2023 Allowance for credit $ 7,123 $ 59,351 $ 36,644 $ 21,218 $ 1,017 $ 3,956 $ 1,366 $ 130,675 Allowance for credit 6,894 — 429 1,276 5 — — 8,604 Total beginning allowance for credit 14,017 59,351 37,073 22,494 1,022 3,956 1,366 139,279 Provision for credit losses: Provision for loan losses 1,516 ( 402 ) 9,726 1,342 203 773 833 13,991 Provision for loan commitments 1,046 — ( 429 ) ( 22 ) ( 5 ) — — 590 Total provision for credit 2,562 ( 402 ) 9,297 1,320 198 773 833 14,581 Charge-offs ( 813 ) ( 815 ) ( 6,072 ) ( 272 ) ( 413 ) ( 1,980 ) ( 861 ) ( 11,226 ) Recoveries — 443 1,107 115 297 894 213 3,069 Net (charge-offs) recoveries ( 813 ) ( 372 ) ( 4,965 ) ( 157 ) ( 116 ) ( 1,086 ) ( 648 ) ( 8,157 ) Balance at June 30, 2024 Allowance for credit 7,826 58,577 41,405 22,403 1,104 3,643 1,551 136,509 Allowance for credit 7,940 — — 1,254 — — — 9,194 Total ending allowance for credit $ 15,766 $ 58,577 $ 41,405 $ 23,657 $ 1,104 $ 3,643 $ 1,551 $ 145,703 Balance at December 31, 2022 Allowance for credit $ 6,737 $ 52,659 $ 31,540 $ 18,208 $ 4,234 $ 3,127 $ 1,285 $ 117,790 Allowance for credit 6,025 — — 2,215 128 — — 8,368 Total beginning allowance for credit 12,762 52,659 31,540 20,423 4,362 3,127 1,285 126,158 Provision for credit losses: Provision for loan losses ( 845 ) 1,246 1,337 1,787 251 693 407 4,876 Provision for loan commitments 1,168 182 527 ( 621 ) 500 — — 1,756 Total provision for credit 323 1,428 1,864 1,166 751 693 407 6,632 Charge-offs ( 222 ) ( 1,381 ) ( 999 ) 7 ( 315 ) ( 1,601 ) ( 818 ) ( 5,329 ) Recoveries 128 427 259 313 250 1,231 221 2,829 Net (charge-offs) recoveries ( 94 ) ( 954 ) ( 740 ) 320 ( 65 ) ( 370 ) ( 597 ) ( 2,500 ) Balance at June 30, 2023 Allowance for credit 5,798 52,951 32,137 20,315 4,420 3,450 1,095 120,166 Allowance for credit 7,193 182 527 1,594 628 — — 10,124 Total ending allowance for credit $ 12,991 $ 53,133 $ 32,664 $ 21,909 $ 5,048 $ 3,450 $ 1,095 $ 130,290 (1) Deposit overdrafts of $ 4.6 million and $ 4.5 million are included in total portfolio loans for the periods ending June 30, 2024 and June 30, 2023, respectively. (2) The total provision for credit losses - loans and loan commitments is reported in the consolidated statements of income in the provision for credit losses line item, which also includes the provision for credit losses on held-to-maturity securities. For more information on the provision relating to held-to-maturity securities, please see Note 3, "Securities." The following tables present the allowance for credit losses and recorded investments in loans by category, as of each period-end: Allowance for Credit Losses and Recorded Investment in Loans (unaudited, in thousands) Commercial Commercial Commercial Residential Home Consumer Deposit Total June 30, 2024 Allowance for credit losses: Loans individually-evaluated $ — $ 5,438 $ 3,344 $ — $ — $ — $ — $ 8,782 Loans collectively-evaluated 7,826 53,139 38,061 22,403 1,104 3,643 1,551 127,727 Loan commitments (2) 7,940 — — 1,254 — — — 9,194 Total allowance for credit $ 15,766 $ 58,577 $ 41,405 $ 23,657 $ 1,104 $ 3,643 $ 1,551 $ 145,703 Portfolio loans: Individually-evaluated for credit $ — $ 36,208 $ 3,916 $ — $ — $ — $ — $ 40,124 Collectively-evaluated for credit 1,061,390 5,901,290 1,756,563 2,506,957 770,599 220,588 — 12,217,387 Total portfolio loans $ 1,061,390 $ 5,937,498 $ 1,760,479 $ 2,506,957 $ 770,599 $ 220,588 $ — $ 12,257,511 December 31, 2023 Allowance for credit losses: Loans individually-evaluated $ — $ 5,745 $ — $ — $ — $ — $ — $ 5,745 Loans collectively-evaluated 7,123 53,606 36,644 21,218 1,017 3,956 1,366 124,930 Loan commitments (2) 6,894 — 429 1,276 5 — — 8,604 Total allowance for credit $ 14,017 $ 59,351 $ 37,073 $ 22,494 $ 1,022 $ 3,956 $ 1,366 $ 139,279 Portfolio loans: Individually-evaluated for credit $ — $ 36,929 $ 116 $ — $ — $ — $ — $ 37,045 Collectively-evaluated for credit 1,055,865 5,472,654 1,670,543 2,438,574 734,219 229,561 — 11,601,416 Total portfolio loans $ 1,055,865 $ 5,509,583 $ 1,670,659 $ 2,438,574 $ 734,219 $ 229,561 $ — $ 11,638,461 (1) Deposit overdrafts of $ 4.6 million and $ 4.7 million are included in total portfolio loans for the periods ending June 30, 2024 and December 31, 2023, respectively. (2) For additional detail relating to loan commitments, see Note 11, "Commitments and Contingent Liabilities." Commercial Loan Risk Grades Commercial loan risk grades are determined based on an evaluation of the relevant characteristics of each loan, assigned at inception and adjusted thereafter at any time to reflect changes in the risk profile throughout the life of each loan. The primary factors used to determine the risk grade are the sufficiency, reliability and sustainability of the primary source of repayment and overall financial strength of the borrower. The rating system more heavily weights the debt service coverage, leverage and loan to value factors to derive the risk grade. Other factors that are considered at a lesser weighting include management, industry or property type risks, payment history, collateral or guarantees. Commercial real estate – land and construction consists of loans to finance investments in vacant land, land development, construction of residential housing, and construction of commercial buildings. Commercial real estate – improved property consists of loans for the purchase or refinance of all types of improved owner-occupied and investment properties. Factors that are considered in assigning the risk grade vary depending on the type of property financed. The risk grade assigned to construction and development loans is based on the overall viability of the project, the experience and financial capacity of the developer or builder to successfully complete the project, project specific and market absorption rates and comparable property values, and the amount of pre-sales for residential housing construction or pre-leases for commercial investment property. The risk grade assigned to commercial investment property loans is based primarily on the adequacy of the net operating income generated by the property to service the debt (“debt service coverage”), the loan to appraised value, the type, quality, industry and mix of tenants, and the terms of leases. The risk grade assigned to owner-occupied commercial real estate is based primarily on global debt service coverage and the leverage of the business, but may also consider the industry in which the business operates, the business’ specific competitive advantages or disadvantages, collateral margins and the quality and experience of management. Commercial and industrial (“C&I”) loans consist of revolving lines of credit to finance accounts receivable, inventory and other general business purposes; term loans to finance fixed assets other than real estate, and letters of credit to support trade, insurance or governmental requirements for a variety of businesses. Most C&I borrowers are privately-held companies with annual sales up to $ 100 million. Primary factors that are considered in risk rating C&I loans include debt service coverage and leverage. Other factors including operating trends, collateral coverage along with management experience are also considered. Pass loans are those that exhibit a history of positive financial results that are at least comparable to the average for their industry or type of real estate. The primary source of repayment is acceptable and these loans are expected to perform satisfactorily during most economic cycles. Pass loans typically have no significant external factors that are expected to adversely affect these borrowers more than others in the same industry or property type. Any minor unfavorable characteristics of these loans are outweighed or mitigated by other positive factors including but not limited to adequate secondary or tertiary sources of repayment, including guarantees. Criticized loans, considered as compromised, have potential weaknesses that deserve management's close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the bank's credit position at some future date. Criticized loans are not adversely classified by the banking regulators and do not expose the bank to sufficient risk to warrant adverse classification. Classified loans, considered as substandard and doubtful, are equivalent to the classifications used by banking regulators. Substandard loans are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the bank will sustain some loss if the deficiencies are not corrected. These loans may or may not be reported as non-accrual. Doubtful loans have all the weaknesses inherent in those classified substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently known facts, conditions, and values, highly questionable and improbable. These loans are reported as non-accrual. The following tables summarize commercial loans by their assigned risk grade: Commercial Loans by Internally Assigned Risk Grade (unaudited, in thousands) Commercial Commercial Commercial Total As of June 30, 2024 Pass $ 1,058,739 $ 5,755,684 $ 1,681,579 $ 8,496,002 Criticized - compromised 972 108,593 70,056 179,621 Classified - substandard 1,679 73,221 8,844 83,744 Classified - doubtful — — — — Total $ 1,061,390 $ 5,937,498 $ 1,760,479 $ 8,759,367 As of December 31, 2023 Pass $ 1,053,359 $ 5,337,394 $ 1,586,683 $ 7,977,436 Criticized - compromised 2,497 107,473 73,204 183,174 Classified - substandard 9 64,716 10,772 75,497 Classified - doubtful — — — — Total $ 1,055,865 $ 5,509,583 $ 1,670,659 $ 8,236,107 Residential real estate, home equity and consumer loans are not assigned internal risk grades other than as required by regulatory guidelines that are based primarily on the age of past due loans. Wesbanco primarily evaluates the credit quality of residential real estate, home equity and consumer loans based on repayment performance and historical loss rates. The aggregate amount of residential real estate, home equity and consumer loans classified as substandard in accordance with regulatory guidelines was $ 21.4 million at June 30, 2024 and $ 20.0 million at December 31, 2023 , of which $ 4.9 million and $ 4.6 million were accruing, for each period, respectively. These loans are not included in the tables above. In addition, $ 26.3 million and $ 21.2 million of unfunded commercial loan commitments are also not included in the tables above at June 30, 2024 and December 31, 2023, respectively. Past Due and Nonperforming Loans The following tables summarize the age analysis of all categories of loans: Age Analysis of Loans (unaudited, in thousands) Current 30-59 60-89 90 Days Total Total 90 Days Due and As of June 30, 2024 Commercial real estate: Land and construction $ 1,061,390 $ — $ — $ — $ — $ 1,061,390 $ — Improved property 5,917,046 2,415 2,119 15,918 20,452 5,937,498 1,296 Total commercial real estate 6,978,436 2,415 2,119 15,918 20,452 6,998,888 1,296 Commercial and industrial 1,753,887 831 1,334 4,427 6,592 1,760,479 2,979 Residential real estate 2,494,815 1,123 3,987 7,032 12,142 2,506,957 3,089 Home equity 760,764 3,662 1,425 4,748 9,835 770,599 1,417 Consumer 215,501 3,625 1,028 434 5,087 220,588 390 Total portfolio loans 12,203,403 11,656 9,893 32,559 54,108 12,257,511 9,171 Loans held for sale 25,433 — — — — 25,433 — Total loans $ 12,228,836 $ 11,656 $ 9,893 $ 32,559 $ 54,108 $ 12,282,944 $ 9,171 Nonperforming loans included above are as follows: Non-accrual loans $ 10,858 $ 322 $ 900 $ 23,388 $ 24,610 $ 35,468 As of December 31, 2023 Commercial real estate: Land and construction $ 1,055,865 $ — $ — $ — $ - $ 1,055,865 $ — Improved property 5,490,946 4,416 3,627 10,594 18,637 5,509,583 1,899 Total commercial real estate 6,546,811 4,416 3,627 10,594 18,637 6,565,448 1,899 Commercial and industrial 1,663,985 640 1,255 4,779 6,674 1,670,659 3,184 Residential real estate 2,429,200 1,572 2,471 5,331 9,374 2,438,574 2,602 Home equity 724,293 4,691 1,198 4,037 9,926 734,219 1,407 Consumer 223,989 3,833 1,178 561 5,572 229,561 546 Total portfolio loans 11,588,278 15,152 9,729 25,302 50,183 11,638,461 9,638 Loans held for sale 16,354 — — — — 16,354 — Total loans $ 11,604,632 $ 15,152 $ 9,729 $ 25,302 $ 50,183 $ 11,654,815 $ 9,638 Nonperforming loans included above are as follows: Non-accrual loans $ 9,138 $ 1,300 $ 706 $ 15,664 $ 17,670 $ 26,808 The following tables summarize nonperforming loans: Nonperforming Loans June 30, 2024 December 31, 2023 Unpaid Unpaid Principal Recorded Related Principal Recorded Related (unaudited, in thousands) Balance (1) Investment Allowance Balance (1) Investment Allowance With no related specific allowance recorded: Commercial real estate: Land and construction $ 1,023 $ 184 $ — $ — $ — $ — Improved property 18,874 16,756 — 11,248 9,557 — Commercial and industrial 3,258 2,058 — 2,492 1,841 — Residential real estate 15,638 11,005 — 15,128 10,582 — Home equity 7,144 5,401 — 6,521 4,777 — Consumer 114 64 — 104 51 — Total nonperforming loans without a specific allowance 46,051 35,468 — 35,493 26,808 — Total nonperforming loans with a specific allowance — — — — — — Total nonperforming loans $ 46,051 $ 35,468 $ — $ 35,493 $ 26,808 $ — (1) The difference between the unpaid principal balance and the recorded investment generally reflects amounts that have been previously charged-off and fair market value adjustments on acquired nonperforming loans. Nonperforming Loans For the Three Months Ended For the Six Months Ended June 30, 2024 June 30, 2023 June 30, 2024 June 30, 2023 Average Interest Average Interest Average Interest Average Interest Recorded Income Recorded Income Recorded Income Recorded Income (unaudited, in thousands) Investment Recognized Investment Recognized Investment Recognized Investment Recognized With no related specific allowance recorded: Commercial real estate: Land and construction $ 197 $ — $ — $ — $ 131 $ — $ 37 $ — Improved property 15,140 — 14,698 — 13,279 — 15,332 — Commercial and industrial 2,412 — 2,780 — 2,221 — 2,890 — Residential real estate 11,342 — 12,744 — 11,089 — 13,848 — Home equity 5,035 — 5,061 — 4,949 — 5,165 — Consumer 69 — 104 — 63 — 122 — Total nonperforming loans without a specific allowance 34,194 — 35,386 — 31,732 — 37,394 — With a specific allowance recorded: Commercial real estate: Land and construction — — — — — — — — Improved property — — — — — — — — Total nonperforming loans with a specific allowance — — — — — — — — Total nonperforming loans $ 34,194 $ — $ 35,386 $ — $ 31,732 $ — $ 37,394 $ — The following table presents the recorded investment in non-accrual loans: Non-accrual Loans (1) June 30, December 31, (unaudited, in thousands) 2024 2023 Commercial real estate: Land and construction $ 184 $ — Improved property 16,756 9,557 Total commercial real estate 16,940 9,557 Commercial and industrial 2,058 1,841 Residential real estate 11,005 10,582 Home equity 5,401 4,777 Consumer 64 51 Total $ 35,468 $ 26,808 (1) At June 30, 2024 , there were five borrowers with a loan balance greater than $ 1.0 million, which totaled $ 13.6 million, as compared to two borrowers with a loan balance greater than $ 1.0 million totaling $ 7.2 million at December 31, 2023 . Total non-accrual loans may include loans that are also restructured for borrowers experiencing financial difficulty. Such loans are also set forth in the following tables. Modifications for Borrowers Experiencing Financial Difficulty (following the adoption of ASU 2022-02) Tables in the following section exclude the financial effects of modifications for loans that were paid off or are otherwise no longer in the loan portfolio as of period end. The following table displays the details of portfolio loans that were modified during the three and six months ended June 30, 2024 and 2023 presented by loan category: For the Three Months Ended June 30, 2024 (unaudited, in thousands) Term Payment Total % of Commercial real estate - land and construction $ 5 $ — $ 5 — Commercial real estate - improved property 4,378 — 4,378 0.1 Commercial and industrial 496 9 505 — Residential real estate — 164 164 — Home equity — 109 109 — Consumer — 114 114 0.1 Total $ 4,879 $ 396 $ 5,275 — For the Three Months Ended June 30, 2023 (unaudited, in thousands) Term Payment Total Percent of Commercial real estate - land and construction $ 448 $ — $ 448 0.1 Commercial real estate - improved property 3,820 270 4,090 0.1 Commercial and industrial 6,544 — 6,544 0.4 Residential real estate — — — — Home equity — 483 483 0.1 Consumer — 267 267 0.1 Total $ 10,812 $ 1,020 $ 11,832 0.1 For the Six Months Ended June 30, 2024 (unaudited, in thousands) Term Payment Total % of Commercial real estate - land and construction $ 5 $ — $ 5 — Commercial real estate - improved property 25,288 — 25,288 0.4 Commercial and industrial 496 9 505 — Residential real estate — 739 739 — Home equity — 449 449 0.1 Consumer — 223 223 0.1 Total $ 25,789 $ 1,420 $ 27,209 0.2 For the Six Months Ended June 30, 2023 (unaudited, in thousands) Term Payment Total Percent of Commercial real estate - land and construction $ 6,449 $ — $ 6,449 0.8 Commercial real estate - improved property 7,105 270 7,375 0.1 Commercial and industrial 9,310 — 9,310 0.6 Residential real estate — 100 100 — Home equity 8 751 759 0.1 Consumer — 293 293 0.1 Total $ 22,872 $ 1,414 $ 24,286 0.2 Unfunded loan commitments on modifications for borrowers experiencing financial difficulty ("MBEFDs") totaled $ 1.0 million for loans modified during the six months ended June 30, 2024 and $ 1.8 million for loans modified during the twelve months ended December 31, 2023 . These commitments are not included in the tables above. The following table summarizes the financial impacts of loan modifications and payment deferrals made to portfolio loans during the three and six months ended June 30, 2024 and 2023, presented by loan category: For the Three Months Ended For the Three Months Ended June 30, 2024 June 30, 2023 (unaudited, in thousands) Weighted-Average Weighted-Average Commercial real estate - land and construction 24 12 Commercial real estate - improved property 4 9 Commercial and industrial 33 8 Residential real estate — — Home equity — — Consumer — — For the Six Months Ended For the Six Months Ended June 30, 2024 June 30, 2023 (unaudited, in thousands) Weighted-Average Weighted-Average Commercial real estate - land and construction 24 4 Commercial real estate - improved property 9 22 Commercial and industrial 33 9 Residential real estate — — Home equity — 120 Consumer — — The following table summarizes loans with MBEFDs which defaulted (defined as 90 days past due) within 12 months of the loan being modified during the three and six months ended June 30, 2024 and 2023 . Modified loans, including those that have defaulted, are already included in the allowance for credit losses through the various methodologies used to estimate the allowance. As such, no modification to the allowance is recorded specifically due to a modified loan subsequently defaulting. For the Three Months Ended June 30, 2024 For the Three Months Ended June 30, 2023 (unaudited, in thousands) Term Payment Total Term Payment Total Commercial real estate - land and construction $ — $ — $ — $ — $ — $ — Commercial real estate - improved property — — — — — — Commercial and industrial 180 — 180 — — — Residential real estate — — — — — — Home equity — — — — — — Consumer — 31 31 — — — Total loans that subsequently defaulted $ 180 $ 31 $ 211 $ — $ — $ — For the Six Months Ended June 30, 2024 For the Six Months Ended June 30, 2023 (unaudited, in thousands) Term Payment Total Term Payment Total Commercial real estate - land and construction $ — $ — $ — $ — $ — $ — Commercial real estate - improved property — — — — — — Commercial and industrial 180 — 180 — — — Residential real estate — 118 118 — — — Home equity — — — — — — Consumer — 48 48 — — — Total loans that subsequently defaulted $ 180 $ 166 $ 346 $ — $ — $ — The following table presents an aging analysis of portfolio loans by loan category that were modified during the twelve months prior to June 30, 2024 and June 30, 2023. June 30, 2024 (unaudited, in thousands) 30-59 Days 60-89 Days 90 Days Total Current Total Commercial real estate - land and construction $ — $ — $ — $ — $ 5 $ 5 Commercial real estate - improved property — 16 — 16 25,585 25,601 Commercial and industrial 91 9 — 100 405 505 Residential real estate — 36 265 301 1,252 1,553 Home equity 15 — 176 191 750 941 Consumer 21 36 31 88 230 318 Total modified loans (1) $ 127 $ 97 $ 472 $ 696 $ 28,227 $ 28,923 June 30, 2023 (unaudited, in thousands) 30-59 Days 60-89 Days 90 Days Total Current Total Commercial real estate - land and construction $ — $ — $ — $ — $ 6,449 $ 6,449 Commercial real estate - improved property — — 270 270 7,105 7,375 Commercial and industrial 143 — — 143 9,168 9,311 Residential real estate — — — — 100 100 Home equity 18 — 72 90 668 758 Consumer — — 20 20 273 293 Total modified loans (1) $ 161 $ — $ 362 $ 523 $ 23,763 $ 24,286 (1) Represents balance at period end. The following tables summarize amortized cost basis loan balances by year of origination and credit quality indicator: Loans As of June 30, 2024 Amortized Cost Basis by Origination Year (unaudited, in thousands) 2024 2023 2022 2021 2020 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: land and construction Risk rating: Pass $ 79,862 $ 349,190 $ 336,084 $ 91,369 $ 23,345 $ 57,058 $ 67,265 $ 54,566 $ 1,058,739 Criticized - compromised — — — — — 17 298 657 972 Classified - substandard — 184 — — — 8 — 1,487 1,679 Classified - doubtful — — — — — — — — — Total $ 79,862 $ 349,374 $ 336,084 $ 91,369 $ 23,345 $ 57,083 $ 67,563 $ 56,710 $ 1,061,390 Current-period gross charge-offs $ — $ 813 $ — $ — $ — $ — $ — $ — $ 813 Commercial real estate: improved property Risk rating: Pass $ 258,814 $ 529,239 $ 1,134,557 $ 596,861 $ 598,755 $ 2,054,008 $ 181,757 $ 401,693 $ 5,755,684 Criticized - compromised 3,302 14,165 13,200 8,135 3,549 36,258 2,139 27,845 108,593 Classified - substandard — 1,860 5,791 411 3,636 61,189 300 34 73,221 Classified - doubtful — — — — — — — — — Total $ 262,116 $ 545,264 $ 1,153,548 $ 605,407 $ 605,940 $ 2,151,455 $ 184,196 $ 429,572 $ 5,937,498 Current-period gross charge-offs $ — $ — $ — $ — $ — $ 815 $ — $ — $ 815 Commercial and industrial Risk rating: Pass $ 153,946 $ 195,932 $ 222,272 $ 125,094 $ 57,423 $ 261,606 $ 598,810 $ 66,496 $ 1,681,579 Criticized - compromised — 5,914 2,573 1,768 1,432 37,694 13,199 7,476 70,056 Classified - substandard — 73 548 728 117 1,409 4,994 975 8,844 Classified - doubtful — — — — — — — — — Total $ 153,946 $ 201,919 $ 225,393 $ 127,590 $ 58,972 $ 300,709 $ 617,003 $ 74,947 $ 1,760,479 Current-period gross charge-offs $ — $ 487 $ 580 $ 86 $ 143 $ 325 $ 1 $ 4,450 $ 6,072 Residential real estate Loan delinquency: Current $ 97,366 $ 261,988 $ 361,520 $ 417,068 $ 178,481 $ 509,163 $ — $ 669,229 $ 2,494,815 30-59 days past due — — — — — 1,123 — — 1,123 60-89 days past due — — 125 94 337 2,672 — 759 3,987 90 days or more past due — — 654 34 165 4,565 — 1,614 7,032 Total $ 97,366 $ 261,988 $ 362,299 $ 417,196 $ 178,983 $ 517,523 $ — $ 671,602 $ 2,506,957 Current-period gross charge-offs $ — $ — $ — $ — $ — $ 214 $ — $ 58 $ 272 Home equity Loan delinquency: Current $ 11,124 $ 1,221 $ 2,297 $ 961 $ 1,961 $ 21,870 $ 719,968 $ 1,362 $ 760,764 30-59 days past due — 17 414 65 239 701 2,096 130 3,662 60-89 days past due — 146 175 89 — 668 — 347 1,425 90 days or more past due — 730 351 248 714 2,390 — 315 4,748 Total $ 11,124 $ 2,114 $ 3,237 $ 1,363 $ 2,914 $ 25,629 $ 722,064 $ 2,154 $ 770,599 Current-period gross charge-offs $ — $ 44 $ 105 $ 16 $ 35 $ 171 $ 20 $ 22 $ 413 Consumer Loan delinquency: Current $ 34,018 $ 68,563 $ 47,131 $ 16,596 $ 8,993 $ 14,813 $ 25,387 $ — $ 215,501 30-59 days past due 269 1,031 1,160 643 200 286 35 1 3,625 60-89 days past due 71 287 422 111 43 94 — — 1,028 90 days or more past due 2 170 112 19 49 82 — — 434 Total $ 34,360 $ 70,051 $ 48,825 $ 17,369 $ 9,285 $ 15,275 $ 25,422 $ 1 $ 220,588 Current-period gross charge-offs $ — $ 560 $ 860 $ 308 $ 115 $ 137 $ — $ — $ 1,980 Loans As of December 31, 2023 Amortized Cost Basis by Origination Year (in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: land and construction Risk rating: Pass $ 290,954 $ 349,549 $ 145,043 $ 54,172 $ 48,655 $ 35,917 $ 82,288 $ 46,781 $ 1,053,359 Criticized - compromised — — — — — 16 299 2,182 2,497 Classified - substandard — — — — — 9 — — 9 Classified - doubtful — — — — — — — — — Total $ 290,954 $ 349,549 $ 145,043 $ 54,172 $ 48,655 $ 35,942 $ 82,587 $ 48,963 $ 1,055,865 Current-period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ 222 $ 222 Commercial real estate: improved property Risk rating: Pass $ 494,142 $ 1,076,535 $ 603,354 $ 581,540 $ 514,523 $ 1,706,804 $ 103,467 $ 257,029 $ 5,337,394 Criticized - compromised — 16,270 8,630 4,387 5,185 44,861 2,373 25,767 107,473 Classified - substandard 1,921 517 417 2,416 23,472 35,939 — 34 64,716 Classified - doubtful — — — — — — — — — Total $ 496,063 $ 1,093,322 $ 612,401 $ 588,343 $ 543,180 $ 1,787,604 $ 105,840 $ 282,830 $ 5,509,583 Current-period gross charge-offs $ — $ — $ 372 $ — $ — $ 1,505 $ — $ — $ 1,877 Commercial and industrial Risk rating: Pass $ 238,427 $ 234,520 $ 136,998 $ 78,836 $ 39,259 $ 252,826 $ 541,400 $ 64,417 $ 1,586,683 Criticized - compromised 1,094 834 3,169 1,490 7,334 31,526 20,626 7,131 73,204 Classified - substandard 33 149 315 265 825 1,916 5,797 1,472 10,772 Classified - doubtful — — — — — — — — — Total $ 239,554 $ 235,503 $ 140,482 $ 80,591 $ 47,418 $ 286,268 $ 567,823 $ 73,020 $ 1,670,659 Current-period gross charge-offs $ 98 $ 205 $ 603 $ 353 $ 20 $ 463 $ — $ 541 $ 2,283 Residential real estate Loan delinquency: Current $ 277,790 $ 429,835 $ 445,322 $ 185,139 $ 86,149 $ 456,818 $ — $ 548,147 $ 2,429,200 30-59 days past due — — — — — 1,572 — — 1,572 60-89 days past due — — — 341 — 2,130 — — 2,471 90 days or more past due — 799 34 — 263 4,207 — 28 5,331 Total $ 277,790 $ 430,634 $ 445,356 $ 185,480 $ 86,412 $ 464,727 $ — $ 548,175 $ 2,438,574 Current-period gross charge-offs $ — $ — $ — $ — $ 5 $ 387 $ — $ — $ 392 Home equity Loan delinquency: Current $ 12,675 $ 1,235 $ 1,467 $ 1,571 $ 1,614 $ 22,484 $ 681,848 $ 1,399 $ 724,293 30-59 days past due 34 193 85 73 44 947 3,315 — 4,691 60-89 days past due 119 318 16 68 76 524 — 77 1,198 90 days or more past due — 213 — 737 230 2,527 — 330 4,037 Total $ 12,828 $ 1,959 $ 1,568 $ 2,449 $ 1,964 $ 26,482 $ 685,163 $ 1,806 $ 734,219 Current-period gross charge-offs $ — $ 139 $ 57 $ 29 $ 79 $ 615 $ 6 $ — $ 925 Consumer Loan delinquency: Current $ 84,526 $ 57,661 $ 21,592 $ 13,189 $ 10,958 $ 12,143 $ 23,916 $ 4 $ 223,989 30-59 days past due 699 1,526 952 343 162 119 32 — 3,833 60-89 days past due 191 616 195 112 5 59 — — 1,178 90 days or more past due 64 203 114 63 9 108 — — 561 Total $ 85,480 $ 60,006 $ 22,853 $ 13,707 $ 11,134 $ 12,429 $ 23,948 $ 4 $ 229,561 Current-period gross charge-offs $ 251 $ 1,921 $ 901 $ 301 $ 100 $ 247 $ 4 $ — $ 3,725 The following table summarizes other real estate owned and repossessed assets included in other assets: June 30, December 31, (unaudited, in thousands) 2024 2023 Other real estate owned $ 1,219 $ 1,207 Repossessed assets 109 290 Total other real estate owned and repossessed assets $ 1,328 $ 1,497 Residential real estate loans included in other real estate totaled $ 0.1 million at June 30, 2024 . There were no such loans at December 31, 2023. At June 30, 2024 and December 31, 2023 , formal foreclosure proceedings were in process on residential real estate loans totaling $ 3.8 million and $ 4.0 million, respectively.

Investments In Limited Partners

Investments In Limited Partnerships	6 Months Ended
	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Investments in Limited Partnerships	NOTE 5. INVESTMENTS IN LIMITED PARTNERSHIPS Wesbanco is a limited partner in several tax-advantaged limited partnerships whose purpose is to invest in approved low-income housing investment tax credit projects. These investments are accounted for using the equity method of accounting and are included in other assets in the Consolidated Balance Sheets. The limited partnerships are considered to be variable interest entities ("VIEs") as they generally do not have equity investors with voting rights or have equity investors that do not provide sufficient financial resources to support their activities. The VIEs have not been consolidated because Wesbanco is not considered the primary beneficiary. All of Wesbanco’s investments in limited partnerships are privately held, and their market values are not readily available. As of June 30, 2024 and December 31, 2023 , Wesbanco had $ 35.6 million and $ 31.9 million, respectively, invested in these partnerships. Wesbanco also recognizes the unconditional unfunded equity commitments of $ 15.3 million and $ 13.9 million at June 30, 2024 and December 31, 2023, respectively, within other liabilities on the Consolidated Balance Sheets. Wesbanco classifies the amortization of the investment as a component of income tax expense (benefit) and proportionally amortizes the investment over the tax credit period. The amortization for the three months ended June 30, 2024 and 2023 was $ 1.2 million and $ 1.1 million, respectively, and was $ 2.3 million and $ 2.1 million, respectively, for the six months ended June 30, 2024 and 2023 . Tax benefits attributed to these partnerships include low-income housing and historic tax credits which are projected to total $ 4.5 million for 2024 , and totaled $ 3.8 million for 2023, which are also included in income tax expense. Wesbanco is also a limited partner in three other limited partnerships as of June 30, 2024. These provide seed money and capital to startup companies, and financing to low-income housing projects. As of June 30, 2024 and December 31, 2023 , Wesbanco had $ 2.9 million and $ 3.0 million invested in these partnerships, which are recorded in other assets using the equity method. Wesbanco included in operations under the equity method of accounting its share of the partnerships’ net income (loss) for the three months ended June 30, 2024 and 2023 of $ 12 thousand and ($ 6 ) thousand, respectively, and ($ 11 ) thousand and $ 5 thousand, respectively, for the six months ended June 30, 2024 and 2023. The following table presents the scheduled equity commitments to be paid to the limited partnerships over the next five years and in the aggregate thereafter as of June 30, 2024: Year (unaudited, in thousands) Amount 2024 $ 3,790 2025 5,085 2026 3,148 2027 950 2028 588 2029 and thereafter 1,726 Total $ 15,287

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Jun. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	NOTE 6. DERIVATIVES AND HEDGING ACTIVITIES Risk Management Objective of Using Derivatives Wesbanco is exposed to certain risks arising from both its business operations and economic conditions. Wesbanco principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. Wesbanco manages economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of its assets and liabilities. Wesbanco’s existing interest rate derivatives result from a service provided to certain qualifying customers and, therefore, are not used to manage interest rate risk in Wesbanco’s assets or liabilities. Wesbanco manages a matched book with respect to its derivative instruments in order to minimize its net risk exposure resulting from such transactions. A matched book is when the Bank's assets and liabilities are equally distributed but also have similar maturities. Loan Swaps Wesbanco executes interest rate swaps and interest rate caps with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps and caps are economically hedged by offsetting interest rate swaps and caps that Wesbanco executes with a third party, such that Wesbanco minimizes its net risk exposure resulting from such transactions. As the interest rate swaps and caps associated with this program do not meet the hedge accounting requirements of ASC 815, changes in the fair value of both the customer swaps and caps and the offsetting third-party swaps and caps are recognized directly in earnings. As of June 30, 2024 and December 31, 2023 , Wesbanco had 267 and 236 customer interest rate swaps and caps with an aggregate notional amount of $ 1.8 billion and $ 1.6 billion, respectively, related to this program. Wesbanco recognized income for the related swap and cap fees of $ 1.8 million and $ 2.4 million for the three months ended June 30, 2024 and 2023 , respectively, and $ 2.5 million and $ 4.3 million for the six months ended June 30, 2024 and 2023, respectively. Risk participation agreements are entered into as financial guarantees of performance on interest rate swap derivatives. The purchased asset or sold liability allows Wesbanco to participate-in (fee received) or participate-out (fee paid) the risk associated with certain derivative positions executed by the borrower of the lead bank in a loan syndication. As of June 30, 2024 and December 31, 2023 , Wesbanco had 22 and 19 risk participation-in agreements with an aggregate notional amount of $ 228.4 million and $ 197.2 million, respectively. As of June 30, 2024 and December 31, 2023 , Wesbanco had eight and five risk participation-out agreements with an aggregate notional amount of $ 68.1 million and $ 40.9 million, respectively. Mortgage Loans Held for Sale and Interest Rate Lock Commitments Certain residential mortgage loans are originated for sale in the secondary mortgage loan market. These loans are classified as held for sale and carried at fair value as Wesbanco has elected the fair value option. Fair value is determined based on rates obtained from the secondary market for loans with similar characteristics. Wesbanco sells loans to the secondary market on either a mandatory or best efforts basis. The loans sold on a mandatory basis are not committed to an investor until the loan is closed with the borrower. Wesbanco enters into forward to be announced (“TBA”) contracts to manage the interest rate risk between the lock commitment and the closing of the loan. The total balance of forward TBA contracts entered into was $ 51.0 million and $ 27.0 million at June 30, 2024 and December 31, 2023, respectively. The loans sold on a best efforts basis are committed to an investor simultaneous to the interest rate commitment with the borrower, and as a result, the Company does not enter into a separate forward TBA contract to offset the fair value risk as the investor accepts such risk in exchange for paying a lower premium on sale. Fair Values of Derivative Instruments on the Balance Sheet All derivatives are carried on the consolidated balance sheet at fair value. Derivative assets are classified in the consolidated balance sheet under other assets, and derivative liabilities are classified in the consolidated balance sheet under other liabilities. Changes in fair value are recognized in earnings. None of Wesbanco’s derivatives are designated in a qualifying hedging relationship under ASC 815. The table below presents the fair value of Wesbanco’s derivative financial instruments as well as their classification on the Balance Sheet as of June 30, 2024 and December 31, 2023: June 30, 2024 December 31, 2023 (unaudited, in thousands) Notional or Asset Liability Notional or Asset Liability Derivatives Loan Swaps: Interest rate swaps and caps $ 1,829,685 $ 81,205 $ 81,308 $ 1,573,152 $ 72,183 $ 73,083 Other contracts: Interest rate lock commitments 27,118 — 32 16,524 84 — Forward TBA contracts 51,000 — 103 27,000 — 205 Total derivatives $ 81,205 $ 81,443 $ 72,267 $ 73,288 Effect of Derivative Instruments on the Income Statement The table below presents the change in the fair value of the Company’s derivative financial instruments reflected within non-interest income on the consolidated income statement for the three and six months ended June 30, 2024 and 2023, respectively. For the Three Months For the Six Months (unaudited, in thousands) Location of Gain/(Loss) 2024 2023 2024 2023 Interest rate swaps and caps Net swap fee and valuation income $ 9 $ 176 $ 807 $ ( 863 ) Interest rate lock commitments Mortgage banking income ( 90 ) ( 315 ) ( 116 ) ( 128 ) Forward TBA contracts Mortgage banking income 47 637 95 448 Total $ ( 34 ) $ 498 $ 786 $ ( 543 ) Credit-risk-related Contingent Features Wesbanco has agreements with its derivative counterparties that contain a provision, which provides that if Wesbanco defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then Wesbanco could also be declared in default on its derivative obligations. Wesbanco also has agreements with certain of its derivative counterparties that contain a provision where if Wesbanco fails to maintain its status as either a “well” or “adequately-capitalized” institution, then the counterparty could terminate the derivative positions and Wesbanco would be required to settle its obligations under the agreements. Dependent upon the net present value of the underlying swaps, Wesbanco has minimum collateral posting thresholds with certain of its derivative counterparties. If Wesbanco had breached any of these provisions at June 30, 2024, it could have been required to settle its obligations under the agreements at the termination value and would have been required to pay any additional amounts due in excess of amounts previously posted as collateral with the respective counterparties. In certain market situations, Wesbanco can also request collateral from the derivative counterparties. Due to the current higher interest rate environment, as of June 30, 2024 and December 31, 2023 , Wesbanco is holding net cash collateral from various derivative counterparties totaling $ 47.2 million and $ 26.0 million, respectively, within interest bearing deposit accounts.

Benefit Plans

Benefit Plans	6 Months Ended
	Jun. 30, 2024
Retirement Benefits [Abstract]
Benefit Plans	NOTE 7. BENEFIT PLANS The following table presents the net periodic pension income for Wesbanco’s Defined Benefit Pension Plan (the “Plan”) and the related components: For the Three Months For the Six Months (unaudited, in thousands) 2024 2023 2024 2023 Service cost – benefits earned during year $ 330 $ 354 $ 660 $ 704 Interest cost on projected benefit obligation 1,603 1,572 3,206 3,126 Expected return on plan assets ( 2,599 ) ( 2,781 ) ( 5,198 ) ( 5,531 ) Amortization of prior service cost ( 8 ) ( 9 ) ( 17 ) ( 18 ) Amortization of net loss 21 225 42 448 Net periodic pension income $ ( 653 ) $ ( 639 ) $ ( 1,307 ) $ ( 1,271 ) The service cost of $ 0.7 million for the six months ended June 30, 2024 and 2023 , is included in salaries and wages, and periodic pension income of $ 2.0 million for the six months ended June 30, 2024 and 2023, is included in employee benefits. The Plan covers all employees of Wesbanco and its subsidiaries who were hired on or before August 1, 2007 who satisfy minimum age and length of service requirements, and is not available to employees hired after such date. A minimum required contribution of $ 2.6 million is due in 2024 , which can be offset in whole or in part by the Plan's $ 64.2 million available credit balance. Wesbanco currently does no t expect to make a voluntary contribution to the Plan in 2024 .

Fair Value Measurement

Fair Value Measurement	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurement	NOTE 8. FAIR VALUE MEASUREMENT Fair value estimates are based on quoted market prices, if available, quoted market prices of similar assets or liabilities, or the present value of expected future cash flows and other valuation techniques. These valuations are significantly affected by discount rates, cash flow assumptions, and risk assumptions used. Therefore, fair value estimates may not be substantiated by comparison to independent markets and are not intended to reflect the proceeds that may be realizable in an immediate settlement of the instruments. Fair value is determined at one point in time and is not representative of future value. These amounts do not reflect the total value of a going concern organization. Management does not have the intention to dispose of a significant portion of its assets and liabilities, and therefore the unrealized gains or losses should not be interpreted as a forecast of future earnings and cash flows. The following is a discussion of assets and liabilities measured at fair value on a recurring basis and valuation techniques applied: Investment securities: The fair value of investment securities which are measured on a recurring basis are determined primarily by obtaining quoted prices on nationally recognized securities exchanges or matrix pricing, which is a mathematical technique used widely in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities’ relationship to other similar securities. These securities are classified within level 1 or 2 in the fair value hierarchy. Positions that are not traded in active markets for which valuations are generated using assumptions not observable in the market or management’s best estimate are classified within level 3 of the fair value hierarchy. This includes certain specific municipal debt issues for which the credit quality and discount rate must be estimated. Loans held for sale: Loans held for sale are carried, in aggregate, at fair value as Wesbanco previously elected the fair value option. The use of a valuation model using quoted prices of similar instruments are significant inputs in arriving at the fair value and therefore loans held for sale are classified within level 2 of the fair value hierarchy. Derivatives: Wesbanco enters into interest rate swap agreements with qualifying commercial customers to meet their financing, interest rate and other risk management needs. These agreements provide the customer the ability to convert from variable to fixed interest rates. The credit risk associated with derivatives executed with customers is essentially the same as that involved in extending loans and is subject to normal credit policies and monitoring. Those interest rate swaps are economically hedged by offsetting interest rate swaps that Wesbanco executes with derivative counterparties in order to offset its exposure on the fixed components of the customer interest rate swap agreements. The interest rate swap agreement with the loan customer and with the counterparty is reported at fair value in other assets and other liabilities on the consolidated balance sheet with any resulting gain or loss recorded in current period earnings as other income and other expense. Wesbanco enters into forward TBA contracts to manage the interest rate risk between the loan commitments to the customer and the closing of the loan for loans that will be sold on a mandatory basis to secondary market investors. The forward TBA contract is reported at fair value in other assets and other liabilities on the consolidated balance sheet with any resulting gain or loss recorded in current period’s earnings as mortgage banking income. Wesbanco determines the fair value for derivatives using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects contractual terms of the derivative, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. Wesbanco incorporates credit valuation adjustments to appropriately reflect both its own non-performance risk and the respective counterparty’s non-performance risk in the fair value measurements, and therefore both the derivative asset and derivative liability are classified within level 2 of the fair value hierarchy. We may be required from time to time to measure certain assets and liabilities at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from the application of lower of cost or market accounting or write-downs of individual assets and liabilities. Collateral dependent loans: Collateral dependent loans are carried at the amortized cost basis less the specific allowance calculated under the Current Expected Credit Losses Accounting Standard. Collateral dependent loans are calculated using a cost basis approach or collateral value approach, and therefore are classified within level 3 of the fair value hierarchy. Other real estate owned and repossessed assets: Other real estate owned and repossessed assets are carried at the lower of the investment in the assets or the fair value of the assets less estimated selling costs. The use of independent appraisals and management’s best judgment are significant inputs in arriving at the fair value measure of the underlying collateral, and therefore other real estate owned and repossessed assets are classified within level 3 of the fair value hierarchy. The fair value amounts presented in the table below are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the statement of financial position. The following tables set forth Wesbanco’s financial assets and liabilities that were accounted for at fair value on a recurring and nonrecurring basis by level within the fair value hierarchy as of June 30, 2024 and December 31, 2023: June 30, 2024 Fair Value Measurements Using: June 30, Quoted Prices in Significant Significant (unaudited, in thousands) 2024 (level 1) (level 2) (level 3) Recurring fair value measurements Equity securities $ 13,091 $ 13,091 $ — $ — Available-for-sale debt securities U.S. Treasury 49,103 49,103 — — U.S. Government sponsored entities and agencies 199,258 — 199,258 — Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 1,514,028 — 1,514,028 — Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 256,190 — 256,190 — Obligations of states and political subdivisions 71,756 — 70,636 1,120 Corporate debt securities 11,788 — 11,788 — Total available-for-sale debt securities $ 2,102,123 $ 49,103 $ 2,051,900 $ 1,120 Loans held for sale 25,433 — 25,433 — Other assets - interest rate swaps 81,205 — 81,205 — Total assets recurring fair value measurements $ 2,221,852 $ 62,194 $ 2,158,538 $ 1,120 Other liabilities - interest rate swaps $ 81,308 $ — $ 81,308 $ — Total liabilities recurring fair value measurements $ 81,308 $ — $ 81,308 $ — Nonrecurring fair value measurements Collateral dependent loans $ 18,876 $ — $ — $ 18,876 Other real estate owned and repossessed assets 1,328 — — 1,328 Total nonrecurring fair value measurements $ 20,204 $ — $ — $ 20,204 December 31, 2023 Fair Value Measurements Using: December 31, Quoted Prices in Significant Significant (in thousands) 2023 (level 1) (level 2) (level 3) Recurring fair value measurements Equity securities $ 12,320 $ 12,320 $ — $ — Available-for-sale debt securities U.S. Government sponsored entities and agencies 208,366 — 208,366 — Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 1,629,684 — 1,629,684 — Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 268,307 — 268,307 — Obligations of states and political subdivisions 76,125 — 74,958 1,167 Corporate debt securities 11,847 — 11,847 — Total available-for-sale debt securities $ 2,194,329 $ — $ 2,193,162 $ 1,167 Loans held for sale 16,354 — 16,354 — Other assets - interest rate swaps 72,183 — 72,183 — Total assets recurring fair value measurements $ 2,295,186 $ 12,320 $ 2,281,699 $ 1,167 Other liabilities - interest rate swaps $ 73,083 $ — $ 73,083 $ — Total liabilities recurring fair value measurements $ 73,083 $ — $ 73,083 $ — Nonrecurring fair value measurements Collateral dependent loans $ 18,273 $ — $ — $ 18,273 Other real estate owned and repossessed assets 1,497 — — 1,497 Total nonrecurring fair value measurements $ 19,770 $ — $ — $ 19,770 Wesbanco’s policy is to recognize transfers between levels as of the actual date of the event or change in circumstances that caused the transfer. There were no transfers between level 1, 2 or 3 for the three and six months ended June 30, 2024 or for the year ended December 31, 2023. The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis and for which Wesbanco has utilized level 3 inputs to determine fair value: Quantitative Information about Level 3 Fair Value Measurements Fair Value Valuation Unobservable Range (Weighted (unaudited, in thousands) Estimate Techniques Input Average) June 30, 2024 Collateral dependent loans $ 18,876 Appraisal of collateral (1) Appraisal adjustments (2) ( 0.0 %)/( 0.0 %) Liquidation expenses (2) 0.0 % to ( 8.0 %)/( 7.8 %) Other real estate owned and repossessed assets $ 1,328 Appraisal of collateral (1), (3) December 31, 2023 Collateral dependent loans $ 18,273 Appraisal of collateral (1) Appraisal adjustments (2) ( 0.0 %)/( 0.0 %) Liquidation expenses (2) ( 8.0 %)/( 8.0 %) Other real estate owned and repossessed assets $ 1,497 Appraisal of collateral (1), (3) (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs, which are not identifiable. (2) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range and weighted average of appraisal adjustments and liquidation expense are presented as a percent of the appraisal. (3) Includes estimated liquidation expenses and numerous dissimilar qualitative adjustments by management, which are not identifiable. The estimated fair values of Wesbanco’s financial instruments are summarized below: Fair Value Measurements at June 30, 2024 Carrying Fair Value Quoted Prices in Significant Significant (unaudited, in thousands) Amount Estimate (level 1) (level 2) (level 3) Financial Assets Cash and due from banks $ 486,789 $ 486,789 $ 486,789 $ — $ — Equity securities 13,091 13,091 13,091 — — Available-for-sale debt securities 2,102,123 2,102,123 49,103 2,051,900 1,120 Net held-to-maturity debt securities 1,179,521 1,028,432 — 1,028,202 230 Net loans 12,121,002 11,636,263 — — 11,636,263 Loans held for sale 25,433 25,433 — 25,433 — Other assets - interest rate derivatives 81,205 81,205 — 81,205 — Accrued interest receivable 79,759 79,759 79,759 — — Financial Liabilities Deposits 13,432,373 13,411,751 12,044,435 1,367,316 — Federal Home Loan Bank borrowings 1,475,000 1,473,741 — 1,473,741 — Other borrowings 105,757 101,959 101,959 — — Subordinated debt and junior subordinated debt 279,193 228,588 — 228,588 — Other liabilities - interest rate derivatives 81,308 81,308 — 81,308 — Accrued interest payable 15,393 15,393 15,393 — — Fair Value Measurements at December 31, 2023 Carrying Fair Value Quoted Prices in Significant Significant (in thousands) Amount Estimate (level 1) (level 2) (level 3) Financial Assets Cash and due from banks $ 595,383 $ 595,383 $ 595,383 $ — $ — Equity securities 12,320 12,320 12,320 — — Available-for-sale debt securities 2,194,329 2,194,329 — 2,193,162 1,167 Net held-to-maturity debt securities 1,199,335 1,069,159 — 1,068,896 263 Net loans 11,507,786 11,134,250 — — 11,134,250 Loans held for sale 16,354 16,354 — 16,354 — Other assets - interest rate derivatives 72,183 72,183 — 72,183 — Accrued interest receivable 77,435 77,435 77,435 — — Financial Liabilities Deposits 13,168,704 13,146,821 11,937,002 1,209,819 — Federal Home Loan Bank borrowings 1,350,000 1,349,217 — 1,349,217 — Other borrowings 105,893 103,057 103,057 — — Subordinated debt and junior subordinated debt 279,078 240,898 — 240,898 — Other liabilities - interest rate derivatives 73,083 73,083 — 73,083 — Accrued interest payable 11,121 11,121 11,121 — — The following methods and assumptions were used to measure the fair value of financial instruments recorded at cost on Wesbanco’s consolidated balance sheets: Cash and due from banks: The carrying amount for cash and due from banks is a reasonable estimate of fair value. Held-to-maturity debt securities: Fair values for debt securities held-to-maturity are determined in the same manner as investment securities, which are described above. Net loans: Fair values for loans are estimated in a valuation model using a discounted cash flow methodology. The discount rates take into account interest rates currently being offered to customers for loans with similar terms, the credit risk associated with the loan and other market factors, including liquidity. Wesbanco believes the discount rates are consistent with transactions occurring in the marketplace for both performing and distressed loan types. The carrying value is net of the allowance for loan losses and other associated premiums and discounts. Due to the significant judgment involved in evaluating credit quality, loans are classified within level 3 of the fair value hierarchy. Accrued interest receivable: The carrying amount of accrued interest receivable approximates its fair value . Deposits: The carrying amount is considered a reasonable estimate of fair value for demand, savings and other variable rate deposit accounts. The fair value of fixed maturity certificates of deposit is estimated by a discounted cash flow method using rates currently offered for deposits of similar remaining maturities. Federal Home Loan Bank borrowings: The fair value of FHLB borrowings is based on rates currently available to Wesbanco for borrowings with similar terms and remaining maturities. Other borrowings: The carrying amount of federal funds purchased and overnight sweep accounts generally approximate fair value. Other repurchase agreements are based on quoted market prices if available. If market prices are not available, for certain fixed and adjustable rate repurchase agreements, then quoted market prices of similar instruments are used. Subordinated debt and junior subordinated debt: The fair value of subordinated debt is determined primarily by obtaining quoted prices on nationally recognized securities exchanges or matrix pricing, which is a mathematical technique used widely in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities’ relationship to other similar securities. These securities are classified within level 2 in the fair value hierarchy. Due to the pooled nature of junior subordinated debt owed to unconsolidated subsidiary trusts, which are not actively traded, estimated fair value is determined by using comparable corporate bond indices and swap rates from the financial services sector and factoring in the applicable credit spreads and optional early redemption provisions. Accrued interest payable: The carrying amount of accrued interest payable approximates its fair value. Off-balance sheet financial instruments: Off-balance sheet financial instruments consist of commitments to extend credit, including letters of credit. Fair values for commitments to extend credit are estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present credit standing of the counterparties. The estimated fair value of the commitments to extend credit and letters of credit are insignificant and therefore are not presented in the above tables.

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2024
Revenue Recognition [Abstract]
Revenue Recognition	NOTE 9. REVENUE RECOGNITION Interest income, net securities gains and bank-owned life insurance are not in scope of ASC 606, Revenue from Contracts with Customers . For the revenue streams in scope of ASC 606 - trust fees, service charges on deposits, net securities brokerage revenue, payment processing fees, digital banking income, net swap fee and valuation income, mortgage banking income and net gain on other real estate owned and other assets – there are no significant judgments related to the amount and timing of revenue recognition. The following table summarizes the point of revenue recognition and the income recognized for each of the revenue streams for the three and six months ended June 30, 2024 and 2023, respectively: Point of Revenue For the Three Months For the Six Months (unaudited, in thousands) Recognition 2024 2023 2024 2023 Revenue Streams Trust fees Trust account fees Over time $ 5,305 $ 5,009 $ 11,405 $ 10,614 WesMark fees Over time 1,998 1,909 3,980 3,798 Total trust fees 7,303 6,918 15,385 14,412 Service charges on deposits Commercial banking fees Over time 1,297 650 2,485 1,259 Personal service charges At a point in time and over time 5,814 5,582 11,410 11,142 Total service charges on deposits 7,111 6,232 13,895 12,401 Net securities brokerage revenue Annuity commissions At a point in time 1,978 1,840 3,950 3,885 Equity and debt security trades At a point in time 70 149 150 149 Managed money Over time 272 284 526 567 Trail commissions Over time 281 250 523 497 Total net securities brokerage revenue 2,601 2,523 5,149 5,098 Payment processing fees (1) At a point in time and over time 906 951 1,734 1,822 Digital banking income At a point in time 5,040 5,010 9,745 9,615 Net swap fee and valuation income (2) At a point in time 1,776 2,612 3,339 3,411 Mortgage banking income At a point in time 1,069 601 1,762 1,027 Net gain on other real estate owned and other assets At a point in time and over time 34 871 188 1,104 (1) Included in other non-interest income. (2) The portion of this line item relating to the change in the fair value of the underlying swaps is not within the scope of ASC 606. Fair value adjustments were immaterial for the three months ended June 30, 2024 and $ 0.2 million for the three months ended June 30, 2023. Fair value adjustments were $ 0.8 million and ($ 0.9 ) million for the six months ended June 30, 2024 and 2023 , respectively.

Comprehensive Income_(Loss)

Comprehensive Income/(Loss)	6 Months Ended
	Jun. 30, 2024
Equity [Abstract]
Comprehensive Income/(Loss)	NOTE 10. COMPREHENSIVE INCOME/(LOSS) The activity in accumulated other comprehensive income/(loss) for the six months ended June 30, 2024 and 2023 is as follows: Accumulated Other Comprehensive Income/(Loss) (1) (unaudited, in thousands) Defined Unrealized Total Balance at December 31, 2023 $ 6,515 $ ( 233,208 ) $ ( 226,693 ) Other comprehensive loss before reclassifications — ( 8,278 ) ( 8,278 ) Amounts reclassified from accumulated other comprehensive loss ( 130 ) ( 107 ) ( 237 ) Period change ( 130 ) ( 8,385 ) ( 8,515 ) Balance at June 30, 2024 $ 6,385 $ ( 241,593 ) $ ( 235,208 ) Balance at December 31, 2022 $ ( 535 ) $ ( 261,881 ) $ ( 262,416 ) Other comprehensive loss before reclassifications — ( 2,481 ) ( 2,481 ) Amounts reclassified from accumulated other comprehensive income 150 120 270 Period change 150 ( 2,361 ) ( 2,211 ) Balance at June 30, 2023 $ ( 385 ) $ ( 264,242 ) $ ( 264,627 ) (1) All amounts are net of tax. Related income tax expense or benefit is calculated using a combined Federal and State income tax rate approximating 24 % in both periods presented. The following table provides details about amounts reclassified from accumulated other comprehensive income for the three and six months ended June 30, 2024 and 2023: Details about Accumulated Other Comprehensive For the Three Months For the Six Months Affected Line Item in the Statement (unaudited, in thousands) 2024 2023 2024 2023 Debt securities available-for-sale (1) : Net securities losses reclassified into earnings $ 12 $ 8 $ 12 $ 159 Net securities gains/(losses) (Non-interest income) Related income tax effect ⁽²⁾ ( 61 ) ( 2 ) ( 119 ) ( 39 ) Provision for income taxes Net effect on accumulated other comprehensive ( 49 ) 6 ( 107 ) 120 Defined benefit plans (3) : Amortization of net (gain) loss and prior service costs ( 101 ) 99 ( 202 ) 198 Employee benefits (Non-interest expense) Related income tax effect ⁽²⁾ 24 ( 24 ) 72 ( 48 ) Provision for income taxes Net effect on accumulated other comprehensive ( 77 ) 75 ( 130 ) 150 Total reclassifications for the period $ ( 126 ) $ 81 $ ( 237 ) $ 270 (1) For additional detail related to unrealized gains on securities and related amounts reclassified from accumulated other comprehensive income, see Note 3, “Securities.” (2) Income tax expense or benefit is calculated using a combined Federal and State income tax rate approximating 24 % in both periods presented. (3) Included in the computation of net periodic pension cost. See Note 7, “Benefit Plans” for additional detail.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	6 Months Ended
	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	NOTE 11. COMMITMENTS AND CONTINGENT LIABILITIES Commitments — In the normal course of business, Wesbanco offers off-balance sheet credit arrangements to enable its customers to meet their financing objectives. Those instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the financial statements. Wesbanco’s exposure to credit losses in the event of non-performance by the other parties to the financial instruments for commitments to extend credit and standby letters of credit is limited to the contractual amount of those instruments. Wesbanco uses the same credit policies in making commitments and conditional obligations as for all other lending. 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 amounts do not necessarily represent future cash requirements. The allowance for credit losses associated with commitments was $ 9.2 million and $ 8.6 million at June 30, 2024 and December 31, 2023, respectively, and is included in other liabilities on the Consolidated Balance Sheets. Letters of credit are conditional commitments issued by banks to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements, including normal business activities, bond financing and similar transactions. Letters of credit are considered guarantees. The liability associated with letters of credit was $ 0.2 million as of June 30, 2024 and December 31, 2023. Contingent obligations to purchase loans funded by other entities include credit card guarantees, loans sold with recourse as well as obligations to the FHLB. Credit card guarantees are credit card balances not owned by Wesbanco, whereby the Bank guarantees the performance of the cardholder. The following table presents total commitments to extend credit, guarantees and various letters of credit outstanding: June 30, December 31, (unaudited, in thousands) 2024 2023 Lines of credit $ 4,146,287 $ 4,016,658 Loans approved but not closed 402,020 275,954 Overdraft limits 396,034 391,598 Letters of credit 43,591 38,929 Contingent obligations and other guarantees 9,394 15,037 Contingent Liabilities — Wesbanco is a party to various legal and administrative proceedings and claims. While any litigation contains an element of uncertainty, management does not believe that a material loss related to such proceedings or claims pending or known to be threatened is reasonably possible.

Business Segments

Business Segments	6 Months Ended
	Jun. 30, 2024
Segment Reporting [Abstract]
Business Segments	NOTE 12. BUSINESS SEGMENTS Wesbanco operates two reportable segments: community banking and trust and investment services. Wesbanco’s community banking segment offers services traditionally offered by full-service commercial banks, including commercial demand, individual demand and time deposit accounts, as well as commercial, mortgage and individual installment loans, and certain non-traditional offerings, such as insurance and securities brokerage services. The trust and investment services segment offers trust services as well as various alternative investment products including mutual funds. The market value of assets managed or held in custody by the trust and investment services segment was approximately $ 5.6 billion and $ 5.1 billion at June 30, 2024 and 2023, respectively. These assets are held by Wesbanco in fiduciary or agency capacities for their customers and therefore are not included as assets on Wesbanco’s Consolidated Balance Sheets. Condensed financial information by business segment is presented below: Trust and Community Investment (unaudited, in thousands) Banking Services Consolidated For The Three Months Ended June 30, 2024 Interest and dividend income $ 202,993 $ — $ 202,993 Interest expense 86,400 — 86,400 Net interest income 116,593 — 116,593 Provision for credit losses 10,541 — 10,541 Net interest income after provision for credit losses 106,052 — 106,052 Non-interest income 24,052 7,303 31,355 Non-interest expense 97,403 4,989 102,392 Income before provision for income taxes 32,701 2,314 35,015 Provision for income taxes 5,613 486 6,099 Net income 27,088 1,828 28,916 Preferred stock dividends 2,531 — 2,531 Net income available to common shareholders $ 24,557 $ 1,828 $ 26,385 For The Three Months Ended June 30, 2023 Interest and dividend income $ 176,055 $ — $ 176,055 Interest expense 54,488 — 54,488 Net interest income 121,567 — 121,567 Provision for credit losses 3,028 — 3,028 Net interest income after provision for credit losses 118,539 — 118,539 Non-interest income 24,923 6,918 31,841 Non-interest expense 91,818 4,619 96,437 Income before provision for income taxes 51,644 2,299 53,943 Provision for income taxes 8,580 483 9,063 Net income 43,064 1,816 44,880 Preferred stock dividends 2,531 — 2,531 Net income available to common shareholders $ 40,533 $ 1,816 $ 42,349 For the Six Months Ended June 30, 2024 Interest and dividend income $ 398,327 $ — $ 398,327 Interest expense 167,767 — 167,767 Net interest income 230,560 — 230,560 Provision for credit losses 14,555 — 14,555 Net interest income after provision for credit losses 216,005 — 216,005 Non-interest income 46,599 15,385 61,984 Non-interest expense 189,373 10,212 199,585 Income before provision for income taxes 73,231 5,173 78,404 Provision for income taxes 12,709 1,086 13,795 Net income 60,522 4,087 64,609 Preferred stock dividends 5,063 — 5,063 Net income available to common shareholders $ 55,459 $ 4,087 $ 59,546 For the Six Months Ended June 30, 2023 Interest and dividend income $ 336,609 $ — $ 336,609 Interest expense 90,711 — 90,711 Net interest income 245,898 — 245,898 Provision for credit losses 6,605 — 6,605 Net interest income after provision for credit losses 239,293 — 239,293 Non-interest income 45,081 14,412 59,493 Non-interest expense 183,433 9,127 192,560 Income before provision for income taxes 100,941 5,285 106,226 Provision for income taxes 17,895 1,110 19,005 Net income 83,046 4,175 87,221 Preferred stock dividends 5,063 — 5,063 Net income available to common shareholders $ 77,983 $ 4,175 $ 82,158 Total non-fiduciary assets of the trust and investment services segment were $ 3.3 million (including $ 0.8 million of trust customer intangibles) and $ 3.4 million (including $ 1.0 million of trust customer intangibles) at June 30, 2024 and 2023 , respectively. All other assets, including goodwill and the remainder of other intangible assets, were allocated to the Community Banking segment.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2024
Subsequent Events [Abstract]
Subsequent Events	NOTE 13. SUBSEQUENT EVENTS Agreement and Plan of Merger On July 25, 2024, Wesbanco, Inc. (the “Company”), Wesbanco Bank, Inc. (“Wesbanco Bank”), Premier Financial Corp. (“Premier Financial”) and Premier Bank entered into a definitive Agreement and Plan of Merger (the “Merger Agreement”) providing for the merger of Premier Financial with and into the Company (the “Merger”) upon the terms and subject to the conditions set forth in the Merger Agreement. As a result of the Merger, the separate corporate existence of Premier Financial will cease, and the Company will continue as the surviving corporation in the Merger. The Merger Agreement also provides that, immediately following the completion of the Merger, Premier Bank, an Ohio state-chartered bank and a wholly-owned subsidiary of Premier Financial, will merge with and into Wesbanco Bank, a West Virginia banking corporation and a wholly-owned subsidiary of the Company (the “Bank Merger”), with Wesbanco Bank continuing as the surviving bank in the Bank Merger. The Merger Agreement was approved by the respective Boards of Directors of each of the Company, Wesbanco Bank, Premier Financial and Premier Bank. Subject to the terms and conditions of the Merger Agreement, at the effective time of the Merger, Premier Financial shareholders will have the right to receive 0.80 of a share of the Company’s common stock for each share of Premier Financial’s common stock. The exchange ratio is subject to customary anti-dilution adjustments in the event of reorganizations, stock splits, stock dividends, and similar transactions involving the Company’s common stock. In addition, in the event that Premier Financial does not declare and pay all or any portion of a regular quarterly dividend of $ 0.31 per share of Premier Financial common stock by reason of Premier Financial’s failure to obtain regulatory non-objection, consent or approval of such quarterly dividend or a related dividend from Premier Bank to Premier Financial, the Company will make a cash payment to Premier Financial’s shareholders at the closing of the Merger on a dollar-for-dollar basis in an amount equal to the total amount of all such foregone dividends, assuming that the number of shares of Premier Financial’s common stock outstanding for each foregone dividend is equal to the number of shares of Premier Financial’s common stock outstanding at the effective time of the Merger. The Merger Agreement contains customary representations and warranties from both the Company and Premier Financial, and each party has agreed to customary covenants, including, among others, covenants relating to the conduct of business during the interim period between the execution of the Merger Agreement and the effective time of the Merger, each party’s obligation, subject to certain exceptions, to recommend that its shareholders approve the Merger (in the case of Premier Financial) or the Merger Agreement and issuance of common stock in connection with the Merger (in the case of the Company) and, in the case of Premier Financial, its non-solicitation obligations relating to alternative acquisition proposals. The Merger Agreement contains certain termination rights for both the Company and Premier Financial and further provides that, upon termination of the Merger Agreement under certain circumstances, Premier Financial may be obligated to pay the Company a termination fee of $ 37.0 million. At the effective time of the Merger, four members of Premier Financial’s current Board of Directors will be appointed to the respective Boards of Directors of the Company and Wesbanco Bank. Consummation of the Merger is subject to a number of customary conditions, including, but not limited to, the approval of the Merger Agreement and the issuance of shares of the Company’s common stock in connection with the Merger by the Company’s shareholders, approval of the Merger by the shareholders of Premier Financial and the receipt of all required regulatory approvals. In addition, each party’s obligation to consummate the Merger is subject to certain additional customary conditions, including (1) subject to certain exceptions, the accuracy of the representations and warranties of the other party, (2) performance in all material respects by the other party of its obligations, and (3) the receipt by such party of an opinion from its counsel to the effect that the Merger and the Bank Merger will be treated as a tax-free reorganization within the meaning of Section 368(a) of the Internal Revenue Code of 1986, as amended. As a condition to the Company’s willingness to enter into the Merger Agreement, all of the directors and executive officers of Premier Financial have entered into voting agreements (each, a “Voting Agreement”) with the Company pursuant to which they have agreed to vote their shares in favor of the Merger. Securities Purchase Agreement On July 25, 2024, the Company entered into a Securities Purchase Agreement (the “Securities Purchase Agreement”) with several institutional “accredited investors” (the “Investors”), pursuant to which the Company agreed to issue and sell to the Investors in a private placement an aggregate of 7,272,728 shares of the Company’s common stock (the “Shares”), at a price of $ 27.50 per Share (the “Private Placement”). The Private Placement is expected to close on August 1, 2024, subject to the satisfaction or waiver of specified customary closing conditions. The Company expects to receive aggregate gross proceeds from the Private Placement of approximately $ 200.0 million, before deducting estimated offering expenses payable by the Company. The Company expects to use the net proceeds from the Private Placement to support the Merger, to maintain appropriate pro forma capital ratios, to pay down borrowings, and for general corporate purposes. The Company has granted the Investors indemnification rights with respect to its representations, warranties, covenants and agreements under the Securities Purchase Agreement.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation — The accompanying unaudited interim financial statements of Wesbanco, Inc. and its consolidated subsidiaries (“Wesbanco”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2023. Wesbanco’s interim financial statements have been prepared following the significant accounting policies disclosed in Note 1 of the Notes to the Consolidated Financial Statements of its 2023 Annual Report on Form 10-K filed with the Securities and Exchange Commission, as well as with the policy changes indicated below. In the opinion of management, the accompanying interim financial information reflects all adjustments, including normal recurring adjustments, necessary to present fairly Wesbanco’s financial position and results of operations for each of the interim periods presented. Certain prior period amounts have been reclassified to conform to the current period presentation. Such reclassifications had no impact on Wesbanco’s net income and shareholders’ equity. Results of operations for interim periods are not necessarily indicative of the results of operations that may be expected for a full year.
Recent accounting pronouncements	Recent accounting pronouncements— The Financial Accounting Standards Board (“FASB”) issued Accounting Standards Updates (“ASU”) as noted below. ASU 2024-02 - Codification Improvements—Amendments to Remove References to the Concepts Statements In March 2024, the FASB issued ASU 2024-02, “Codification Improvements—Amendments to Remove References to the Concepts Statements.” The removal of all references to Concepts Statements in the guidance will simplify the Codification and draw a distinction between authoritative and nonauthoritative literature. For Wesbanco, the amendments in this Update are effective for fiscal years beginning after December 15, 2024. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements. ASU 2024-01 – Compensation – Stock Compensation (Topic 718) In March 2024, the FASB issued ASU 2024-01, “Stock Compensation (Topic 718).” The amendments in this Update are designed to improve GAAP by adding an illustrative example that includes four fact patterns to demonstrate how an entity should apply the scope guidance in paragraph 718-10-15-3 to determine whether a profits interest award should be accounted for in accordance with Topic 718. The illustrative example is intended to reduce (1) complexity in determining whether a profits interest award is subject to the guidance in Topic 718 and (2) existing diversity in practice. For Wesbanco, the amendments are effective for annual periods beginning after December 15, 2024, and interim periods within those annual periods. Early adoption is permitted for both interim and annual financial statements that have not yet been issued or made available for issuance. If an entity adopts the amendments in an interim period, it should adopt them as of the beginning of the annual period that includes that interim period. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements. ASU 2023-09 – Income Taxes (Topic 740): Improvements to Income Tax Disclosures In December 2023, the FASB issued ASU 2023-09, "Income Taxes (Topic 740)." The amendments in this Update related to the rate reconciliation and income taxes paid disclosures and are designed to improve the transparency of income tax disclosures by requiring (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) income taxes paid disaggregated by jurisdiction. For Wesbanco, the amendments are effective for annual periods beginning after December 15, 2024. Early adoption is permitted for annual financial statements that have not yet been issued or made available for issuance. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements. ASU 2023-08 – Intangibles-Goodwill and Other Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of a Crypto Asset In December 2023, the FASB issued ASU 2023-08, "Intangibles-Goodwill and Other Crypto Assets (Subtopic 350-60)." The amendments in this Update require that an entity measure crypto assets at fair value in the statement of financial position each reporting period and recognize changes from remeasurement in net income. The amendments also require that an entity provide enhanced disclosures for both annual and interim reporting periods to provide investors with relevant information to analyze and assess the exposure and risk of significant individual crypto asset holdings. In addition, fair value measurement aligns the accounting required for holders of crypto assets with the accounting for entities that are subject to certain industry-specific guidance (such as investment companies) and eliminates the requirement to test those assets for impairment, thereby reducing the associated cost and complexity of applying the current guidance. For Wesbanco, the amendments are effective beginning after December 15, 2024, including interim periods within those fiscal years. Early adoption is permitted. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements, as Wesbanco holds no crypto assets. ASU 2023-07—Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures In November 2023, the FASB issued ASU 2023-07, “Improvements to Reportable Segment Disclosures (Topic 280).” The amendments in this Update improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis for all public entities to enable investors to develop more decision-useful financial analyses. The amendments in this Update do not change how a public entity identifies its operating segments, aggregates those operating segments, or applies the quantitative thresholds to determine its reportable segments. For Wesbanco, the amendments are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements. ASU 2023-06 - Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative In October 2023, the FASB issued ASU 2023-06, "Disclosure Improvements." For entities subject to the SEC’s existing disclosure requirements and for entities required to file or furnish financial statements with or to the SEC in preparation for the sale of or for purposes of issuing securities that are not subject to contractual restrictions on transfer, the effective date for each amendment will be the date on which the SEC’s removal of that related disclosure from Regulation S-X or Regulation S-K becomes effective. If by June 30, 2027, the SEC has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the related amendment will be removed from the Codification and will not become effective for any entity. The adoption of this pronouncement is not expected to have a material impact on the Consolidated Financial Statements. ASU 2023-05 – Business Combinations—Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement In August 2023, the FASB issued ASU 2023-05, "Business Combinations - Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement," under which an entity that qualifies as either a joint venture or a corporate joint venture as defined in the FASB Accounting Standards Codification ("ASC") master glossary is required to apply a new basis of accounting upon the formation of the joint venture. Specifically, the ASU provides that a joint venture or a corporate joint venture (collectively, “joint ventures”) must initially measure its assets and liabilities at fair value on the formation date. For Wesbanco, the amendments are effective for all joint ventures within the ASU’s scope that are formed on or after January 1, 2025 . Early adoption is permitted in any annual or interim period as of the beginning of the related fiscal year. The adoption of this pronouncement is no t expected to have a material impact on the Consolidated Financial Statements. ASU 2023-02 – Investments Equity Method and Joint Ventures (Topic 323) In March 2023, the FASB issued ASU 2023-02, Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method. ASU 2023-02 allows reporting entities to elect to account for qualifying tax equity investments using the proportional amortization method, regardless of the program giving rise to the related income tax credits. The ASU’s amendments “remove the specialized guidance for [low-income-housing tax credit] investments that are not accounted for using the proportional amortization method and instead require that those LIHTC investments be accounted for using the guidance in other [GAAP].” For Wesbanco, the amendments were effective on January 1, 2024 . The adoption of this pronouncement did no t have a material impact on the Consolidated Financial Statements. ASU 2023-01 - Leases (Topic 842): Common Control Arrangements In March 2023, the FASB issued ASU 2023-01, Leases (Topic 842): Common Control Arrangements. ASU 2023-01 amends certain provisions of ASC 842 that apply to arrangements between related parties under common control. Additionally, ASU 2023-01 amends the accounting for leasehold improvements in common-control arrangements for all entities. For Wesbanco, the amendments were effective on January 1, 2024 . The adoption of this pronouncement did no t have a material impact on the Consolidated Financial Statements. ASU 2022-04 - Liabilities – Supplier Finance Programs (Sub-topic 405-50) In September 2022, the FASB issued ASU 2022-04, “Liabilities—Supplier Finance Programs (Subtopic 405-50).” The amendments in this ASU require that a buyer in a supplier finance program disclose sufficient information about the program to allow a user of financial statements to understand the program’s nature, activity during the period, changes from period to period, and potential magnitude. To achieve that objective, the buyer should disclose qualitative and quantitative information about its supplier finance programs. For Wesbanco, this update was effective beginning on January 1, 2023, except for the amendment on rollforward information, which was effective on January 1, 2024 . As this is not part of Wesbanco's current business activities, the adoption of this full pronouncement did no t have a material impact on the Consolidated Financial Statements. ASU 2022-03 - Fair Value Measurement (Topic 820) In June 2022, the FASB issued ASU 2022-03, "Fair Value Measurement (Topic 820).” The amendments in this ASU clarify that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security, and therefore, is not considered in measuring fair value. Furthermore, the amendments to this ASU clarify that an entity cannot, as a separate unit of account, recognize and measure a contractual sale restriction. The update to this ASU requires the following disclosures for equity securities: (1) the fair value of equity securities subject to contractual sale restrictions reflected in the balance sheet; (2) the nature and remaining duration of the restriction(s) and; (3) the circumstances that could cause a lapse in the restriction(s). The amendments in this Update were effective on January 1, 2024 . The adoption of this pronouncement did no t have a material impact on the Consolidated Financial Statements.

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2024
Earnings Per Share [Abstract]
Summary of Earnings Per Common Share	Earnings per common share are calculated as follows: For the Three Months For the Six Months (unaudited, in thousands, except shares and per share amounts) 2024 2023 2024 2023 Numerator for both basic and diluted earnings per common share: Net income available to common shareholders $ 26,385 $ 42,349 $ 59,546 $ 82,158 Denominator: Total average basic common shares outstanding 59,521,872 59,263,949 59,452,315 59,240,958 Effect of dilutive stock options and other stock compensation 134,557 121,898 140,645 148,356 Total diluted average common shares outstanding 59,656,429 59,385,847 59,592,960 59,389,314 Earnings per common share - basic $ 0.44 $ 0.71 $ 1.00 $ 1.39 Earnings per common share - diluted $ 0.44 $ 0.71 $ 1.00 $ 1.38

Securities (Tables)

Securities (Tables)	6 Months Ended
	Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Fair Value of Available-for-sale and Held-to-maturity Securities	The following table presents the fair value and amortized cost of available-for-sale and held-to-maturity debt securities: June 30, 2024 December 31, 2023 (unaudited, in thousands) Amortized Gross Gross Fair Amortized Gross Gross Fair Available-for-sale debt securities U.S. Treasury $ 49,099 $ 4 $ — 49,103 $ — $ — $ — $ — U.S. Government sponsored entities and agencies 231,912 — ( 32,654 ) 199,258 238,676 — ( 30,310 ) 208,366 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 1,791,043 51 ( 277,066 ) 1,514,028 1,897,511 47 ( 267,874 ) 1,629,684 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 261,150 40 ( 5,000 ) 256,190 274,220 11 ( 5,924 ) 268,307 Obligations of states and political subdivisions 75,609 6 ( 3,859 ) 71,756 78,819 167 ( 2,861 ) 76,125 Corporate debt securities 11,968 — ( 180 ) 11,788 11,962 — ( 115 ) 11,847 Total available-for-sale debt securities $ 2,420,781 $ 101 $ ( 318,759 ) $ 2,102,123 $ 2,501,188 $ 225 $ ( 307,084 ) $ 2,194,329 Held-to-maturity debt securities U.S. Government sponsored entities and agencies $ 3,300 $ — $ ( 321 ) $ 2,979 $ 3,587 $ — $ ( 313 ) $ 3,274 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 35,776 — ( 3,150 ) 32,626 38,893 — ( 3,017 ) 35,876 Obligations of states and political subdivisions 1,122,395 105 ( 147,546 ) 974,954 1,136,779 852 ( 127,518 ) 1,010,113 Corporate debt securities 18,213 — ( 340 ) 17,873 20,268 — ( 372 ) 19,896 Total held-to-maturity debt securities (1) $ 1,179,684 $ 105 $ ( 151,357 ) $ 1,028,432 $ 1,199,527 $ 852 $ ( 131,220 ) $ 1,069,159 Total debt securities $ 3,600,465 $ 206 $ ( 470,116 ) $ 3,130,555 $ 3,700,715 $ 1,077 $ ( 438,304 ) $ 3,263,488 (1) Total held-to-maturity debt securities are presented on the balance sheet net of their allowance for credit losses totaling $ 0.2 million at June 30, 2024 and December 31, 2023 .
Schedule of Amortized Cost and Fair Value of Available-for-Sale and Held-to-Maturity Securities by Contractual Maturity	The following table presents the amortized cost and fair value of available-for-sale and held-to-maturity debt securities by contractual maturity date at June 30, 2024. Actual maturities will differ from contractual maturities because borrowers may have the right to call or prepay debt obligations with or without prepayment penalties. Mortgage-backed securities and collateralized mortgage obligations are classified in the table below based on their contractual maturity date; however, regular principal payments and prepayments of principal are received on a monthly basis. (unaudited, in thousands) Amortized Cost Fair Value Available-for-sale debt securities Within one year $ 75,322 $ 75,127 After 1 year through 5 years 170,101 165,339 After 5 years through 10 years 295,411 278,986 After 10 years 1,879,947 1,582,671 Total available-for-sale debt securities $ 2,420,781 $ 2,102,123 Held-to-maturity debt securities Within one year $ 22,438 $ 22,325 After 1 year through 5 years 114,612 112,057 After 5 years through 10 years 501,534 453,682 After 10 years 541,100 440,368 Total held-to-maturity debt securities $ 1,179,684 $ 1,028,432 Total debt securities $ 3,600,465 $ 3,130,555
Schedule of Gross Realized Gains and Losses on the Sales and Calls of Securities	The following table presents the gross realized gains and losses on sales and calls of available-for-sale and held-to-maturity debt securities, as well as gains and losses on equity securities from both sales and market adjustments, for the three and six months ended June 30, 2024 and 2023, respectively. All gains and losses presented in the table below are included in the net securities gains (losses) line item of the consolidated income statement. For those equity securities relating to the key officer and director deferred compensation plan, the corresponding change in the obligation to the participant is recognized in employee benefits expense. For the Three Months For the Six Months (unaudited, in thousands) 2024 2023 2024 2023 Debt securities: Gross realized gains $ — $ 2 $ — $ 65 Gross realized losses ( 12 ) ( 9 ) ( 12 ) ( 206 ) Net losses on debt securities ( 12 ) ( 7 ) ( 12 ) ( 141 ) Equity securities: Net unrealized gains recognized on securities still held 147 212 684 491 Net securities gains $ 135 $ 205 $ 672 $ 350
Schedule of Allowance for Credit Losses on Held-to-maturity Securities	The following table provides a roll-forward of the allowance for credit losses on held-to-maturity securities for the six months ended June 30, 2024 and 2023: Allowance for Credit Losses By Category For the Six Months Ended June 30, 2024 and 2023 Obligations of states and Corporate political debt (unaudited, in thousands) subdivisions Securities Total Balance at December 31, 2023 $ 160 $ 32 $ 192 Current period provision (1) ( 12 ) ( 17 ) ( 29 ) Write-offs — — — Recoveries — — — Balance at June 30, 2024 $ 148 $ 15 $ 163 . Balance at December 31, 2022 $ 167 $ 53 $ 220 Current period provision (1) ( 12 ) ( 15 ) ( 27 ) Write-offs — — — Recoveries — — — Balance at June 30, 2023 $ 155 $ 38 $ 193 (1) The total provision for credit losses on held-to-maturity securities is reported in the consolidated statements of income in the provision for credit losses line item, which also includes the provision for credit losses - loans and loan commitments. For more information on the provision relating to loans and loan commitments, please see Note 4, "Loans and the Allowance for Credit Losses."
Schedule of Unrealized Losses on Investment Securities	The following tables provide information on unrealized losses on available-for-sale debt securities that have been in an unrealized loss position for less than twelve months and twelve months or more, for which an allowance for credit losses has not been recorded, as of June 30, 2024 and December 31, 2023, respectively: June 30, 2024 Less than 12 months 12 months or more Total (unaudited, dollars in thousands) Fair Unrealized # of Fair Unrealized # of Fair Unrealized # of U.S. Government sponsored entities and agencies $ — $ — — $ 199,258 $ ( 32,654 ) 45 $ 199,258 $ ( 32,654 ) 45 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies — — — 1,510,101 ( 277,066 ) 463 1,510,101 ( 277,066 ) 463 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies — — — 239,948 ( 5,000 ) 59 239,948 ( 5,000 ) 59 Obligations of states and political subdivisions 11,336 ( 190 ) 13 57,038 ( 3,669 ) 96 68,374 ( 3,859 ) 109 Corporate debt securities 4,481 ( 19 ) 4 7,307 ( 161 ) 2 11,788 ( 180 ) 6 Total $ 15,817 $ ( 209 ) 17 $ 2,013,652 $ ( 318,550 ) 665 $ 2,029,469 $ ( 318,759 ) 682 December 31, 2023 Less than 12 months 12 months or more Total (dollars in thousands) Fair Unrealized # of Fair Unrealized # of Fair Unrealized # of U.S. Government sponsored entities and agencies $ 18 $ ( 1 ) 1 $ 208,348 $ ( 30,309 ) 45 $ 208,366 $ ( 30,310 ) 46 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies — — — 1,625,144 ( 267,874 ) 467 1,625,144 ( 267,874 ) 467 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 5,520 ( 31 ) 1 251,765 ( 5,893 ) 60 257,285 ( 5,924 ) 61 Obligations of states and political subdivisions 10,387 ( 86 ) 19 49,002 ( 2,775 ) 79 59,389 ( 2,861 ) 98 Corporate debt securities 4,482 ( 18 ) 3 7,365 ( 97 ) 3 11,847 ( 115 ) 6 Total $ 20,407 $ ( 136 ) 24 $ 2,141,624 $ ( 306,948 ) 654 $ 2,162,031 $ ( 307,084 ) 678

Loans and the Allowance for C_2

Loans and the Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Schedule of Recorded Investment in Loans by Category	The recorded investment in loans is presented in the Consolidated Balance Sheets net of deferred loan fees and costs, and discounts on purchased loans. Net deferred loan costs were $ 10.9 million and $ 11.5 million at June 30, 2024 and December 31, 2023 , respectively. The unaccreted discount on purchased loans from acquisitions was $ 12.0 million at June 30, 2024 and $ 13.5 million at December 31, 2023. June 30, December 31, (unaudited, in thousands) 2024 2023 Commercial real estate: Land and construction $ 1,061,390 $ 1,055,865 Improved property 5,937,498 5,509,583 Total commercial real estate 6,998,888 6,565,448 Commercial and industrial 1,760,479 1,670,659 Residential real estate 2,506,957 2,438,574 Home equity 770,599 734,219 Consumer 220,588 229,561 Total portfolio loans 12,257,511 11,638,461 Loans held for sale 25,433 16,354 Total loans $ 12,282,944 $ 11,654,815
Summary of Changes in Allowance for Credit Losses	The following tables summarize changes in the allowance for credit losses applicable to each category of the loan portfolio: Allowance for Credit Losses By Category For the Six Months Ended June 30, 2024 and 2023 (unaudited, in thousands) Commercial Commercial Commercial Residential Home Consumer Deposit Total Balance at December 31, 2023 Allowance for credit $ 7,123 $ 59,351 $ 36,644 $ 21,218 $ 1,017 $ 3,956 $ 1,366 $ 130,675 Allowance for credit 6,894 — 429 1,276 5 — — 8,604 Total beginning allowance for credit 14,017 59,351 37,073 22,494 1,022 3,956 1,366 139,279 Provision for credit losses: Provision for loan losses 1,516 ( 402 ) 9,726 1,342 203 773 833 13,991 Provision for loan commitments 1,046 — ( 429 ) ( 22 ) ( 5 ) — — 590 Total provision for credit 2,562 ( 402 ) 9,297 1,320 198 773 833 14,581 Charge-offs ( 813 ) ( 815 ) ( 6,072 ) ( 272 ) ( 413 ) ( 1,980 ) ( 861 ) ( 11,226 ) Recoveries — 443 1,107 115 297 894 213 3,069 Net (charge-offs) recoveries ( 813 ) ( 372 ) ( 4,965 ) ( 157 ) ( 116 ) ( 1,086 ) ( 648 ) ( 8,157 ) Balance at June 30, 2024 Allowance for credit 7,826 58,577 41,405 22,403 1,104 3,643 1,551 136,509 Allowance for credit 7,940 — — 1,254 — — — 9,194 Total ending allowance for credit $ 15,766 $ 58,577 $ 41,405 $ 23,657 $ 1,104 $ 3,643 $ 1,551 $ 145,703 Balance at December 31, 2022 Allowance for credit $ 6,737 $ 52,659 $ 31,540 $ 18,208 $ 4,234 $ 3,127 $ 1,285 $ 117,790 Allowance for credit 6,025 — — 2,215 128 — — 8,368 Total beginning allowance for credit 12,762 52,659 31,540 20,423 4,362 3,127 1,285 126,158 Provision for credit losses: Provision for loan losses ( 845 ) 1,246 1,337 1,787 251 693 407 4,876 Provision for loan commitments 1,168 182 527 ( 621 ) 500 — — 1,756 Total provision for credit 323 1,428 1,864 1,166 751 693 407 6,632 Charge-offs ( 222 ) ( 1,381 ) ( 999 ) 7 ( 315 ) ( 1,601 ) ( 818 ) ( 5,329 ) Recoveries 128 427 259 313 250 1,231 221 2,829 Net (charge-offs) recoveries ( 94 ) ( 954 ) ( 740 ) 320 ( 65 ) ( 370 ) ( 597 ) ( 2,500 ) Balance at June 30, 2023 Allowance for credit 5,798 52,951 32,137 20,315 4,420 3,450 1,095 120,166 Allowance for credit 7,193 182 527 1,594 628 — — 10,124 Total ending allowance for credit $ 12,991 $ 53,133 $ 32,664 $ 21,909 $ 5,048 $ 3,450 $ 1,095 $ 130,290 (1) Deposit overdrafts of $ 4.6 million and $ 4.5 million are included in total portfolio loans for the periods ending June 30, 2024 and June 30, 2023, respectively. (2) The total provision for credit losses - loans and loan commitments is reported in the consolidated statements of income in the provision for credit losses line item, which also includes the provision for credit losses on held-to-maturity securities. For more information on the provision relating to held-to-maturity securities, please see Note 3, "Securities."
Allowance for Credit Losses and Recorded Investments in Loans	The following tables present the allowance for credit losses and recorded investments in loans by category, as of each period-end: Allowance for Credit Losses and Recorded Investment in Loans (unaudited, in thousands) Commercial Commercial Commercial Residential Home Consumer Deposit Total June 30, 2024 Allowance for credit losses: Loans individually-evaluated $ — $ 5,438 $ 3,344 $ — $ — $ — $ — $ 8,782 Loans collectively-evaluated 7,826 53,139 38,061 22,403 1,104 3,643 1,551 127,727 Loan commitments (2) 7,940 — — 1,254 — — — 9,194 Total allowance for credit $ 15,766 $ 58,577 $ 41,405 $ 23,657 $ 1,104 $ 3,643 $ 1,551 $ 145,703 Portfolio loans: Individually-evaluated for credit $ — $ 36,208 $ 3,916 $ — $ — $ — $ — $ 40,124 Collectively-evaluated for credit 1,061,390 5,901,290 1,756,563 2,506,957 770,599 220,588 — 12,217,387 Total portfolio loans $ 1,061,390 $ 5,937,498 $ 1,760,479 $ 2,506,957 $ 770,599 $ 220,588 $ — $ 12,257,511 December 31, 2023 Allowance for credit losses: Loans individually-evaluated $ — $ 5,745 $ — $ — $ — $ — $ — $ 5,745 Loans collectively-evaluated 7,123 53,606 36,644 21,218 1,017 3,956 1,366 124,930 Loan commitments (2) 6,894 — 429 1,276 5 — — 8,604 Total allowance for credit $ 14,017 $ 59,351 $ 37,073 $ 22,494 $ 1,022 $ 3,956 $ 1,366 $ 139,279 Portfolio loans: Individually-evaluated for credit $ — $ 36,929 $ 116 $ — $ — $ — $ — $ 37,045 Collectively-evaluated for credit 1,055,865 5,472,654 1,670,543 2,438,574 734,219 229,561 — 11,601,416 Total portfolio loans $ 1,055,865 $ 5,509,583 $ 1,670,659 $ 2,438,574 $ 734,219 $ 229,561 $ — $ 11,638,461 (1) Deposit overdrafts of $ 4.6 million and $ 4.7 million are included in total portfolio loans for the periods ending June 30, 2024 and December 31, 2023, respectively. (2) For additional detail relating to loan commitments, see Note 11, "Commitments and Contingent Liabilities."
Summary of Commercial Loans by Risk Grade	The following tables summarize commercial loans by their assigned risk grade: Commercial Loans by Internally Assigned Risk Grade (unaudited, in thousands) Commercial Commercial Commercial Total As of June 30, 2024 Pass $ 1,058,739 $ 5,755,684 $ 1,681,579 $ 8,496,002 Criticized - compromised 972 108,593 70,056 179,621 Classified - substandard 1,679 73,221 8,844 83,744 Classified - doubtful — — — — Total $ 1,061,390 $ 5,937,498 $ 1,760,479 $ 8,759,367 As of December 31, 2023 Pass $ 1,053,359 $ 5,337,394 $ 1,586,683 $ 7,977,436 Criticized - compromised 2,497 107,473 73,204 183,174 Classified - substandard 9 64,716 10,772 75,497 Classified - doubtful — — — — Total $ 1,055,865 $ 5,509,583 $ 1,670,659 $ 8,236,107
Summary of Age Analysis of Loan Categories	The following tables summarize the age analysis of all categories of loans: Age Analysis of Loans (unaudited, in thousands) Current 30-59 60-89 90 Days Total Total 90 Days Due and As of June 30, 2024 Commercial real estate: Land and construction $ 1,061,390 $ — $ — $ — $ — $ 1,061,390 $ — Improved property 5,917,046 2,415 2,119 15,918 20,452 5,937,498 1,296 Total commercial real estate 6,978,436 2,415 2,119 15,918 20,452 6,998,888 1,296 Commercial and industrial 1,753,887 831 1,334 4,427 6,592 1,760,479 2,979 Residential real estate 2,494,815 1,123 3,987 7,032 12,142 2,506,957 3,089 Home equity 760,764 3,662 1,425 4,748 9,835 770,599 1,417 Consumer 215,501 3,625 1,028 434 5,087 220,588 390 Total portfolio loans 12,203,403 11,656 9,893 32,559 54,108 12,257,511 9,171 Loans held for sale 25,433 — — — — 25,433 — Total loans $ 12,228,836 $ 11,656 $ 9,893 $ 32,559 $ 54,108 $ 12,282,944 $ 9,171 Nonperforming loans included above are as follows: Non-accrual loans $ 10,858 $ 322 $ 900 $ 23,388 $ 24,610 $ 35,468 As of December 31, 2023 Commercial real estate: Land and construction $ 1,055,865 $ — $ — $ — $ - $ 1,055,865 $ — Improved property 5,490,946 4,416 3,627 10,594 18,637 5,509,583 1,899 Total commercial real estate 6,546,811 4,416 3,627 10,594 18,637 6,565,448 1,899 Commercial and industrial 1,663,985 640 1,255 4,779 6,674 1,670,659 3,184 Residential real estate 2,429,200 1,572 2,471 5,331 9,374 2,438,574 2,602 Home equity 724,293 4,691 1,198 4,037 9,926 734,219 1,407 Consumer 223,989 3,833 1,178 561 5,572 229,561 546 Total portfolio loans 11,588,278 15,152 9,729 25,302 50,183 11,638,461 9,638 Loans held for sale 16,354 — — — — 16,354 — Total loans $ 11,604,632 $ 15,152 $ 9,729 $ 25,302 $ 50,183 $ 11,654,815 $ 9,638 Nonperforming loans included above are as follows: Non-accrual loans $ 9,138 $ 1,300 $ 706 $ 15,664 $ 17,670 $ 26,808
Summary of Nonperforming Loans	The following tables summarize nonperforming loans: Nonperforming Loans June 30, 2024 December 31, 2023 Unpaid Unpaid Principal Recorded Related Principal Recorded Related (unaudited, in thousands) Balance (1) Investment Allowance Balance (1) Investment Allowance With no related specific allowance recorded: Commercial real estate: Land and construction $ 1,023 $ 184 $ — $ — $ — $ — Improved property 18,874 16,756 — 11,248 9,557 — Commercial and industrial 3,258 2,058 — 2,492 1,841 — Residential real estate 15,638 11,005 — 15,128 10,582 — Home equity 7,144 5,401 — 6,521 4,777 — Consumer 114 64 — 104 51 — Total nonperforming loans without a specific allowance 46,051 35,468 — 35,493 26,808 — Total nonperforming loans with a specific allowance — — — — — — Total nonperforming loans $ 46,051 $ 35,468 $ — $ 35,493 $ 26,808 $ — (1) The difference between the unpaid principal balance and the recorded investment generally reflects amounts that have been previously charged-off and fair market value adjustments on acquired nonperforming loans. Nonperforming Loans For the Three Months Ended For the Six Months Ended June 30, 2024 June 30, 2023 June 30, 2024 June 30, 2023 Average Interest Average Interest Average Interest Average Interest Recorded Income Recorded Income Recorded Income Recorded Income (unaudited, in thousands) Investment Recognized Investment Recognized Investment Recognized Investment Recognized With no related specific allowance recorded: Commercial real estate: Land and construction $ 197 $ — $ — $ — $ 131 $ — $ 37 $ — Improved property 15,140 — 14,698 — 13,279 — 15,332 — Commercial and industrial 2,412 — 2,780 — 2,221 — 2,890 — Residential real estate 11,342 — 12,744 — 11,089 — 13,848 — Home equity 5,035 — 5,061 — 4,949 — 5,165 — Consumer 69 — 104 — 63 — 122 — Total nonperforming loans without a specific allowance 34,194 — 35,386 — 31,732 — 37,394 — With a specific allowance recorded: Commercial real estate: Land and construction — — — — — — — — Improved property — — — — — — — — Total nonperforming loans with a specific allowance — — — — — — — — Total nonperforming loans $ 34,194 $ — $ 35,386 $ — $ 31,732 $ — $ 37,394 $ —
Recorded Investment in Non-Accrual Loans	The following table presents the recorded investment in non-accrual loans: Non-accrual Loans (1) June 30, December 31, (unaudited, in thousands) 2024 2023 Commercial real estate: Land and construction $ 184 $ — Improved property 16,756 9,557 Total commercial real estate 16,940 9,557 Commercial and industrial 2,058 1,841 Residential real estate 11,005 10,582 Home equity 5,401 4,777 Consumer 64 51 Total $ 35,468 $ 26,808 (1) At June 30, 2024 , there were five borrowers with a loan balance greater than $ 1.0 million, which totaled $ 13.6 million, as compared to two borrowers with a loan balance greater than $ 1.0 million totaling $ 7.2 million at December 31, 2023 . Total non-accrual loans may include loans that are also restructured for borrowers experiencing financial difficulty. Such loans are also set forth in the following tables.
Summary of Details of Portfolio Loans Modified by Loan Category	The following table displays the details of portfolio loans that were modified during the three and six months ended June 30, 2024 and 2023 presented by loan category: For the Three Months Ended June 30, 2024 (unaudited, in thousands) Term Payment Total % of Commercial real estate - land and construction $ 5 $ — $ 5 — Commercial real estate - improved property 4,378 — 4,378 0.1 Commercial and industrial 496 9 505 — Residential real estate — 164 164 — Home equity — 109 109 — Consumer — 114 114 0.1 Total $ 4,879 $ 396 $ 5,275 — For the Three Months Ended June 30, 2023 (unaudited, in thousands) Term Payment Total Percent of Commercial real estate - land and construction $ 448 $ — $ 448 0.1 Commercial real estate - improved property 3,820 270 4,090 0.1 Commercial and industrial 6,544 — 6,544 0.4 Residential real estate — — — — Home equity — 483 483 0.1 Consumer — 267 267 0.1 Total $ 10,812 $ 1,020 $ 11,832 0.1 For the Six Months Ended June 30, 2024 (unaudited, in thousands) Term Payment Total % of Commercial real estate - land and construction $ 5 $ — $ 5 — Commercial real estate - improved property 25,288 — 25,288 0.4 Commercial and industrial 496 9 505 — Residential real estate — 739 739 — Home equity — 449 449 0.1 Consumer — 223 223 0.1 Total $ 25,789 $ 1,420 $ 27,209 0.2 For the Six Months Ended June 30, 2023 (unaudited, in thousands) Term Payment Total Percent of Commercial real estate - land and construction $ 6,449 $ — $ 6,449 0.8 Commercial real estate - improved property 7,105 270 7,375 0.1 Commercial and industrial 9,310 — 9,310 0.6 Residential real estate — 100 100 — Home equity 8 751 759 0.1 Consumer — 293 293 0.1 Total $ 22,872 $ 1,414 $ 24,286 0.2 Unfunded loan commitments on modifications for borrowers experiencing financial difficulty ("MBEFDs") totaled $ 1.0 million for loans modified during the six months ended June 30, 2024 and $ 1.8 million for loans modified during the twelve months ended December 31, 2023 . These commitments are not included in the tables above.
Summary of Financial Impacts of Loan Modifications and Payment Deferrals to Portfolio Loans	The following table summarizes the financial impacts of loan modifications and payment deferrals made to portfolio loans during the three and six months ended June 30, 2024 and 2023, presented by loan category: For the Three Months Ended For the Three Months Ended June 30, 2024 June 30, 2023 (unaudited, in thousands) Weighted-Average Weighted-Average Commercial real estate - land and construction 24 12 Commercial real estate - improved property 4 9 Commercial and industrial 33 8 Residential real estate — — Home equity — — Consumer — — For the Six Months Ended For the Six Months Ended June 30, 2024 June 30, 2023 (unaudited, in thousands) Weighted-Average Weighted-Average Commercial real estate - land and construction 24 4 Commercial real estate - improved property 9 22 Commercial and industrial 33 9 Residential real estate — — Home equity — 120 Consumer — —
Summary of Loans with MBEFDs	The following table summarizes loans with MBEFDs which defaulted (defined as 90 days past due) within 12 months of the loan being modified during the three and six months ended June 30, 2024 and 2023 . Modified loans, including those that have defaulted, are already included in the allowance for credit losses through the various methodologies used to estimate the allowance. As such, no modification to the allowance is recorded specifically due to a modified loan subsequently defaulting. For the Three Months Ended June 30, 2024 For the Three Months Ended June 30, 2023 (unaudited, in thousands) Term Payment Total Term Payment Total Commercial real estate - land and construction $ — $ — $ — $ — $ — $ — Commercial real estate - improved property — — — — — — Commercial and industrial 180 — 180 — — — Residential real estate — — — — — — Home equity — — — — — — Consumer — 31 31 — — — Total loans that subsequently defaulted $ 180 $ 31 $ 211 $ — $ — $ — For the Six Months Ended June 30, 2024 For the Six Months Ended June 30, 2023 (unaudited, in thousands) Term Payment Total Term Payment Total Commercial real estate - land and construction $ — $ — $ — $ — $ — $ — Commercial real estate - improved property — — — — — — Commercial and industrial 180 — 180 — — — Residential real estate — 118 118 — — — Home equity — — — — — — Consumer — 48 48 — — — Total loans that subsequently defaulted $ 180 $ 166 $ 346 $ — $ — $ —
Summary of Aging Analysis of Portfolio Loans Restructured	The following table presents an aging analysis of portfolio loans by loan category that were modified during the twelve months prior to June 30, 2024 and June 30, 2023. June 30, 2024 (unaudited, in thousands) 30-59 Days 60-89 Days 90 Days Total Current Total Commercial real estate - land and construction $ — $ — $ — $ — $ 5 $ 5 Commercial real estate - improved property — 16 — 16 25,585 25,601 Commercial and industrial 91 9 — 100 405 505 Residential real estate — 36 265 301 1,252 1,553 Home equity 15 — 176 191 750 941 Consumer 21 36 31 88 230 318 Total modified loans (1) $ 127 $ 97 $ 472 $ 696 $ 28,227 $ 28,923 June 30, 2023 (unaudited, in thousands) 30-59 Days 60-89 Days 90 Days Total Current Total Commercial real estate - land and construction $ — $ — $ — $ — $ 6,449 $ 6,449 Commercial real estate - improved property — — 270 270 7,105 7,375 Commercial and industrial 143 — — 143 9,168 9,311 Residential real estate — — — — 100 100 Home equity 18 — 72 90 668 758 Consumer — — 20 20 273 293 Total modified loans (1) $ 161 $ — $ 362 $ 523 $ 23,763 $ 24,286 (1) Represents balance at period end.
Summary of Amortized Cost Basis Loan Balances by Year of Origination and Credit Quality Indicator	The following tables summarize amortized cost basis loan balances by year of origination and credit quality indicator: Loans As of June 30, 2024 Amortized Cost Basis by Origination Year (unaudited, in thousands) 2024 2023 2022 2021 2020 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: land and construction Risk rating: Pass $ 79,862 $ 349,190 $ 336,084 $ 91,369 $ 23,345 $ 57,058 $ 67,265 $ 54,566 $ 1,058,739 Criticized - compromised — — — — — 17 298 657 972 Classified - substandard — 184 — — — 8 — 1,487 1,679 Classified - doubtful — — — — — — — — — Total $ 79,862 $ 349,374 $ 336,084 $ 91,369 $ 23,345 $ 57,083 $ 67,563 $ 56,710 $ 1,061,390 Current-period gross charge-offs $ — $ 813 $ — $ — $ — $ — $ — $ — $ 813 Commercial real estate: improved property Risk rating: Pass $ 258,814 $ 529,239 $ 1,134,557 $ 596,861 $ 598,755 $ 2,054,008 $ 181,757 $ 401,693 $ 5,755,684 Criticized - compromised 3,302 14,165 13,200 8,135 3,549 36,258 2,139 27,845 108,593 Classified - substandard — 1,860 5,791 411 3,636 61,189 300 34 73,221 Classified - doubtful — — — — — — — — — Total $ 262,116 $ 545,264 $ 1,153,548 $ 605,407 $ 605,940 $ 2,151,455 $ 184,196 $ 429,572 $ 5,937,498 Current-period gross charge-offs $ — $ — $ — $ — $ — $ 815 $ — $ — $ 815 Commercial and industrial Risk rating: Pass $ 153,946 $ 195,932 $ 222,272 $ 125,094 $ 57,423 $ 261,606 $ 598,810 $ 66,496 $ 1,681,579 Criticized - compromised — 5,914 2,573 1,768 1,432 37,694 13,199 7,476 70,056 Classified - substandard — 73 548 728 117 1,409 4,994 975 8,844 Classified - doubtful — — — — — — — — — Total $ 153,946 $ 201,919 $ 225,393 $ 127,590 $ 58,972 $ 300,709 $ 617,003 $ 74,947 $ 1,760,479 Current-period gross charge-offs $ — $ 487 $ 580 $ 86 $ 143 $ 325 $ 1 $ 4,450 $ 6,072 Residential real estate Loan delinquency: Current $ 97,366 $ 261,988 $ 361,520 $ 417,068 $ 178,481 $ 509,163 $ — $ 669,229 $ 2,494,815 30-59 days past due — — — — — 1,123 — — 1,123 60-89 days past due — — 125 94 337 2,672 — 759 3,987 90 days or more past due — — 654 34 165 4,565 — 1,614 7,032 Total $ 97,366 $ 261,988 $ 362,299 $ 417,196 $ 178,983 $ 517,523 $ — $ 671,602 $ 2,506,957 Current-period gross charge-offs $ — $ — $ — $ — $ — $ 214 $ — $ 58 $ 272 Home equity Loan delinquency: Current $ 11,124 $ 1,221 $ 2,297 $ 961 $ 1,961 $ 21,870 $ 719,968 $ 1,362 $ 760,764 30-59 days past due — 17 414 65 239 701 2,096 130 3,662 60-89 days past due — 146 175 89 — 668 — 347 1,425 90 days or more past due — 730 351 248 714 2,390 — 315 4,748 Total $ 11,124 $ 2,114 $ 3,237 $ 1,363 $ 2,914 $ 25,629 $ 722,064 $ 2,154 $ 770,599 Current-period gross charge-offs $ — $ 44 $ 105 $ 16 $ 35 $ 171 $ 20 $ 22 $ 413 Consumer Loan delinquency: Current $ 34,018 $ 68,563 $ 47,131 $ 16,596 $ 8,993 $ 14,813 $ 25,387 $ — $ 215,501 30-59 days past due 269 1,031 1,160 643 200 286 35 1 3,625 60-89 days past due 71 287 422 111 43 94 — — 1,028 90 days or more past due 2 170 112 19 49 82 — — 434 Total $ 34,360 $ 70,051 $ 48,825 $ 17,369 $ 9,285 $ 15,275 $ 25,422 $ 1 $ 220,588 Current-period gross charge-offs $ — $ 560 $ 860 $ 308 $ 115 $ 137 $ — $ — $ 1,980 Loans As of December 31, 2023 Amortized Cost Basis by Origination Year (in thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: land and construction Risk rating: Pass $ 290,954 $ 349,549 $ 145,043 $ 54,172 $ 48,655 $ 35,917 $ 82,288 $ 46,781 $ 1,053,359 Criticized - compromised — — — — — 16 299 2,182 2,497 Classified - substandard — — — — — 9 — — 9 Classified - doubtful — — — — — — — — — Total $ 290,954 $ 349,549 $ 145,043 $ 54,172 $ 48,655 $ 35,942 $ 82,587 $ 48,963 $ 1,055,865 Current-period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ 222 $ 222 Commercial real estate: improved property Risk rating: Pass $ 494,142 $ 1,076,535 $ 603,354 $ 581,540 $ 514,523 $ 1,706,804 $ 103,467 $ 257,029 $ 5,337,394 Criticized - compromised — 16,270 8,630 4,387 5,185 44,861 2,373 25,767 107,473 Classified - substandard 1,921 517 417 2,416 23,472 35,939 — 34 64,716 Classified - doubtful — — — — — — — — — Total $ 496,063 $ 1,093,322 $ 612,401 $ 588,343 $ 543,180 $ 1,787,604 $ 105,840 $ 282,830 $ 5,509,583 Current-period gross charge-offs $ — $ — $ 372 $ — $ — $ 1,505 $ — $ — $ 1,877 Commercial and industrial Risk rating: Pass $ 238,427 $ 234,520 $ 136,998 $ 78,836 $ 39,259 $ 252,826 $ 541,400 $ 64,417 $ 1,586,683 Criticized - compromised 1,094 834 3,169 1,490 7,334 31,526 20,626 7,131 73,204 Classified - substandard 33 149 315 265 825 1,916 5,797 1,472 10,772 Classified - doubtful — — — — — — — — — Total $ 239,554 $ 235,503 $ 140,482 $ 80,591 $ 47,418 $ 286,268 $ 567,823 $ 73,020 $ 1,670,659 Current-period gross charge-offs $ 98 $ 205 $ 603 $ 353 $ 20 $ 463 $ — $ 541 $ 2,283 Residential real estate Loan delinquency: Current $ 277,790 $ 429,835 $ 445,322 $ 185,139 $ 86,149 $ 456,818 $ — $ 548,147 $ 2,429,200 30-59 days past due — — — — — 1,572 — — 1,572 60-89 days past due — — — 341 — 2,130 — — 2,471 90 days or more past due — 799 34 — 263 4,207 — 28 5,331 Total $ 277,790 $ 430,634 $ 445,356 $ 185,480 $ 86,412 $ 464,727 $ — $ 548,175 $ 2,438,574 Current-period gross charge-offs $ — $ — $ — $ — $ 5 $ 387 $ — $ — $ 392 Home equity Loan delinquency: Current $ 12,675 $ 1,235 $ 1,467 $ 1,571 $ 1,614 $ 22,484 $ 681,848 $ 1,399 $ 724,293 30-59 days past due 34 193 85 73 44 947 3,315 — 4,691 60-89 days past due 119 318 16 68 76 524 — 77 1,198 90 days or more past due — 213 — 737 230 2,527 — 330 4,037 Total $ 12,828 $ 1,959 $ 1,568 $ 2,449 $ 1,964 $ 26,482 $ 685,163 $ 1,806 $ 734,219 Current-period gross charge-offs $ — $ 139 $ 57 $ 29 $ 79 $ 615 $ 6 $ — $ 925 Consumer Loan delinquency: Current $ 84,526 $ 57,661 $ 21,592 $ 13,189 $ 10,958 $ 12,143 $ 23,916 $ 4 $ 223,989 30-59 days past due 699 1,526 952 343 162 119 32 — 3,833 60-89 days past due 191 616 195 112 5 59 — — 1,178 90 days or more past due 64 203 114 63 9 108 — — 561 Total $ 85,480 $ 60,006 $ 22,853 $ 13,707 $ 11,134 $ 12,429 $ 23,948 $ 4 $ 229,561 Current-period gross charge-offs $ 251 $ 1,921 $ 901 $ 301 $ 100 $ 247 $ 4 $ — $ 3,725
Summary of Other Real Estate Owned and Repossessed Assets	The following table summarizes other real estate owned and repossessed assets included in other assets: June 30, December 31, (unaudited, in thousands) 2024 2023 Other real estate owned $ 1,219 $ 1,207 Repossessed assets 109 290 Total other real estate owned and repossessed assets $ 1,328 $ 1,497

Investments In Limited Partne_2

Investments In Limited Partnerships (Tables)	6 Months Ended
	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Equity Commitments	The following table presents the scheduled equity commitments to be paid to the limited partnerships over the next five years and in the aggregate thereafter as of June 30, 2024: Year (unaudited, in thousands) Amount 2024 $ 3,790 2025 5,085 2026 3,148 2027 950 2028 588 2029 and thereafter 1,726 Total $ 15,287

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Fair Values of Derivative Instruments on Balance Sheets	The table below presents the fair value of Wesbanco’s derivative financial instruments as well as their classification on the Balance Sheet as of June 30, 2024 and December 31, 2023: June 30, 2024 December 31, 2023 (unaudited, in thousands) Notional or Asset Liability Notional or Asset Liability Derivatives Loan Swaps: Interest rate swaps and caps $ 1,829,685 $ 81,205 $ 81,308 $ 1,573,152 $ 72,183 $ 73,083 Other contracts: Interest rate lock commitments 27,118 — 32 16,524 84 — Forward TBA contracts 51,000 — 103 27,000 — 205 Total derivatives $ 81,205 $ 81,443 $ 72,267 $ 73,288
Summary of Effect of Derivative Instruments on Income Statement	The table below presents the change in the fair value of the Company’s derivative financial instruments reflected within non-interest income on the consolidated income statement for the three and six months ended June 30, 2024 and 2023, respectively. For the Three Months For the Six Months (unaudited, in thousands) Location of Gain/(Loss) 2024 2023 2024 2023 Interest rate swaps and caps Net swap fee and valuation income $ 9 $ 176 $ 807 $ ( 863 ) Interest rate lock commitments Mortgage banking income ( 90 ) ( 315 ) ( 116 ) ( 128 ) Forward TBA contracts Mortgage banking income 47 637 95 448 Total $ ( 34 ) $ 498 $ 786 $ ( 543 )

Benefit Plans (Tables)

Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2024
Retirement Benefits [Abstract]
Schedule of Defined Benefit Pension Plan	The following table presents the net periodic pension income for Wesbanco’s Defined Benefit Pension Plan (the “Plan”) and the related components: For the Three Months For the Six Months (unaudited, in thousands) 2024 2023 2024 2023 Service cost – benefits earned during year $ 330 $ 354 $ 660 $ 704 Interest cost on projected benefit obligation 1,603 1,572 3,206 3,126 Expected return on plan assets ( 2,599 ) ( 2,781 ) ( 5,198 ) ( 5,531 ) Amortization of prior service cost ( 8 ) ( 9 ) ( 17 ) ( 18 ) Amortization of net loss 21 225 42 448 Net periodic pension income $ ( 653 ) $ ( 639 ) $ ( 1,307 ) $ ( 1,271 )

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Assets and Liabilities Measured on Recurring and Nonrecurring Basis	The fair value amounts presented in the table below are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the statement of financial position. The following tables set forth Wesbanco’s financial assets and liabilities that were accounted for at fair value on a recurring and nonrecurring basis by level within the fair value hierarchy as of June 30, 2024 and December 31, 2023: June 30, 2024 Fair Value Measurements Using: June 30, Quoted Prices in Significant Significant (unaudited, in thousands) 2024 (level 1) (level 2) (level 3) Recurring fair value measurements Equity securities $ 13,091 $ 13,091 $ — $ — Available-for-sale debt securities U.S. Treasury 49,103 49,103 — — U.S. Government sponsored entities and agencies 199,258 — 199,258 — Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 1,514,028 — 1,514,028 — Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 256,190 — 256,190 — Obligations of states and political subdivisions 71,756 — 70,636 1,120 Corporate debt securities 11,788 — 11,788 — Total available-for-sale debt securities $ 2,102,123 $ 49,103 $ 2,051,900 $ 1,120 Loans held for sale 25,433 — 25,433 — Other assets - interest rate swaps 81,205 — 81,205 — Total assets recurring fair value measurements $ 2,221,852 $ 62,194 $ 2,158,538 $ 1,120 Other liabilities - interest rate swaps $ 81,308 $ — $ 81,308 $ — Total liabilities recurring fair value measurements $ 81,308 $ — $ 81,308 $ — Nonrecurring fair value measurements Collateral dependent loans $ 18,876 $ — $ — $ 18,876 Other real estate owned and repossessed assets 1,328 — — 1,328 Total nonrecurring fair value measurements $ 20,204 $ — $ — $ 20,204 December 31, 2023 Fair Value Measurements Using: December 31, Quoted Prices in Significant Significant (in thousands) 2023 (level 1) (level 2) (level 3) Recurring fair value measurements Equity securities $ 12,320 $ 12,320 $ — $ — Available-for-sale debt securities U.S. Government sponsored entities and agencies 208,366 — 208,366 — Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 1,629,684 — 1,629,684 — Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 268,307 — 268,307 — Obligations of states and political subdivisions 76,125 — 74,958 1,167 Corporate debt securities 11,847 — 11,847 — Total available-for-sale debt securities $ 2,194,329 $ — $ 2,193,162 $ 1,167 Loans held for sale 16,354 — 16,354 — Other assets - interest rate swaps 72,183 — 72,183 — Total assets recurring fair value measurements $ 2,295,186 $ 12,320 $ 2,281,699 $ 1,167 Other liabilities - interest rate swaps $ 73,083 $ — $ 73,083 $ — Total liabilities recurring fair value measurements $ 73,083 $ — $ 73,083 $ — Nonrecurring fair value measurements Collateral dependent loans $ 18,273 $ — $ — $ 18,273 Other real estate owned and repossessed assets 1,497 — — 1,497 Total nonrecurring fair value measurements $ 19,770 $ — $ — $ 19,770
Schedule of Assets Measured at Fair Value on Nonrecurring Basis	The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis and for which Wesbanco has utilized level 3 inputs to determine fair value: Quantitative Information about Level 3 Fair Value Measurements Fair Value Valuation Unobservable Range (Weighted (unaudited, in thousands) Estimate Techniques Input Average) June 30, 2024 Collateral dependent loans $ 18,876 Appraisal of collateral (1) Appraisal adjustments (2) ( 0.0 %)/( 0.0 %) Liquidation expenses (2) 0.0 % to ( 8.0 %)/( 7.8 %) Other real estate owned and repossessed assets $ 1,328 Appraisal of collateral (1), (3) December 31, 2023 Collateral dependent loans $ 18,273 Appraisal of collateral (1) Appraisal adjustments (2) ( 0.0 %)/( 0.0 %) Liquidation expenses (2) ( 8.0 %)/( 8.0 %) Other real estate owned and repossessed assets $ 1,497 Appraisal of collateral (1), (3) (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs, which are not identifiable. (2) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range and weighted average of appraisal adjustments and liquidation expense are presented as a percent of the appraisal. (3) Includes estimated liquidation expenses and numerous dissimilar qualitative adjustments by management, which are not identifiable.
Estimates Fair Values of Financial Instruments	The estimated fair values of Wesbanco’s financial instruments are summarized below: Fair Value Measurements at June 30, 2024 Carrying Fair Value Quoted Prices in Significant Significant (unaudited, in thousands) Amount Estimate (level 1) (level 2) (level 3) Financial Assets Cash and due from banks $ 486,789 $ 486,789 $ 486,789 $ — $ — Equity securities 13,091 13,091 13,091 — — Available-for-sale debt securities 2,102,123 2,102,123 49,103 2,051,900 1,120 Net held-to-maturity debt securities 1,179,521 1,028,432 — 1,028,202 230 Net loans 12,121,002 11,636,263 — — 11,636,263 Loans held for sale 25,433 25,433 — 25,433 — Other assets - interest rate derivatives 81,205 81,205 — 81,205 — Accrued interest receivable 79,759 79,759 79,759 — — Financial Liabilities Deposits 13,432,373 13,411,751 12,044,435 1,367,316 — Federal Home Loan Bank borrowings 1,475,000 1,473,741 — 1,473,741 — Other borrowings 105,757 101,959 101,959 — — Subordinated debt and junior subordinated debt 279,193 228,588 — 228,588 — Other liabilities - interest rate derivatives 81,308 81,308 — 81,308 — Accrued interest payable 15,393 15,393 15,393 — — Fair Value Measurements at December 31, 2023 Carrying Fair Value Quoted Prices in Significant Significant (in thousands) Amount Estimate (level 1) (level 2) (level 3) Financial Assets Cash and due from banks $ 595,383 $ 595,383 $ 595,383 $ — $ — Equity securities 12,320 12,320 12,320 — — Available-for-sale debt securities 2,194,329 2,194,329 — 2,193,162 1,167 Net held-to-maturity debt securities 1,199,335 1,069,159 — 1,068,896 263 Net loans 11,507,786 11,134,250 — — 11,134,250 Loans held for sale 16,354 16,354 — 16,354 — Other assets - interest rate derivatives 72,183 72,183 — 72,183 — Accrued interest receivable 77,435 77,435 77,435 — — Financial Liabilities Deposits 13,168,704 13,146,821 11,937,002 1,209,819 — Federal Home Loan Bank borrowings 1,350,000 1,349,217 — 1,349,217 — Other borrowings 105,893 103,057 103,057 — — Subordinated debt and junior subordinated debt 279,078 240,898 — 240,898 — Other liabilities - interest rate derivatives 73,083 73,083 — 73,083 — Accrued interest payable 11,121 11,121 11,121 — —

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2024
Revenue Recognition [Abstract]
Summary of Revenue Recognition	The following table summarizes the point of revenue recognition and the income recognized for each of the revenue streams for the three and six months ended June 30, 2024 and 2023, respectively: Point of Revenue For the Three Months For the Six Months (unaudited, in thousands) Recognition 2024 2023 2024 2023 Revenue Streams Trust fees Trust account fees Over time $ 5,305 $ 5,009 $ 11,405 $ 10,614 WesMark fees Over time 1,998 1,909 3,980 3,798 Total trust fees 7,303 6,918 15,385 14,412 Service charges on deposits Commercial banking fees Over time 1,297 650 2,485 1,259 Personal service charges At a point in time and over time 5,814 5,582 11,410 11,142 Total service charges on deposits 7,111 6,232 13,895 12,401 Net securities brokerage revenue Annuity commissions At a point in time 1,978 1,840 3,950 3,885 Equity and debt security trades At a point in time 70 149 150 149 Managed money Over time 272 284 526 567 Trail commissions Over time 281 250 523 497 Total net securities brokerage revenue 2,601 2,523 5,149 5,098 Payment processing fees (1) At a point in time and over time 906 951 1,734 1,822 Digital banking income At a point in time 5,040 5,010 9,745 9,615 Net swap fee and valuation income (2) At a point in time 1,776 2,612 3,339 3,411 Mortgage banking income At a point in time 1,069 601 1,762 1,027 Net gain on other real estate owned and other assets At a point in time and over time 34 871 188 1,104 (1) Included in other non-interest income. (2) The portion of this line item relating to the change in the fair value of the underlying swaps is not within the scope of ASC 606. Fair value adjustments were immaterial for the three months ended June 30, 2024 and $ 0.2 million for the three months ended June 30, 2023. Fair value adjustments were $ 0.8 million and ($ 0.9 ) million for the six months ended June 30, 2024 and 2023 , respectively.

Comprehensive Income_(Loss) (Ta

Comprehensive Income/(Loss) (Tables)	6 Months Ended
	Jun. 30, 2024
Equity [Abstract]
Components of Accumulated Other Comprehensive Income (Loss)	The activity in accumulated other comprehensive income/(loss) for the six months ended June 30, 2024 and 2023 is as follows: Accumulated Other Comprehensive Income/(Loss) (1) (unaudited, in thousands) Defined Unrealized Total Balance at December 31, 2023 $ 6,515 $ ( 233,208 ) $ ( 226,693 ) Other comprehensive loss before reclassifications — ( 8,278 ) ( 8,278 ) Amounts reclassified from accumulated other comprehensive loss ( 130 ) ( 107 ) ( 237 ) Period change ( 130 ) ( 8,385 ) ( 8,515 ) Balance at June 30, 2024 $ 6,385 $ ( 241,593 ) $ ( 235,208 ) Balance at December 31, 2022 $ ( 535 ) $ ( 261,881 ) $ ( 262,416 ) Other comprehensive loss before reclassifications — ( 2,481 ) ( 2,481 ) Amounts reclassified from accumulated other comprehensive income 150 120 270 Period change 150 ( 2,361 ) ( 2,211 ) Balance at June 30, 2023 $ ( 385 ) $ ( 264,242 ) $ ( 264,627 ) (1) All amounts are net of tax. Related income tax expense or benefit is calculated using a combined Federal and State income tax rate approximating 24 % in both periods presented.
Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income	The following table provides details about amounts reclassified from accumulated other comprehensive income for the three and six months ended June 30, 2024 and 2023: Details about Accumulated Other Comprehensive For the Three Months For the Six Months Affected Line Item in the Statement (unaudited, in thousands) 2024 2023 2024 2023 Debt securities available-for-sale (1) : Net securities losses reclassified into earnings $ 12 $ 8 $ 12 $ 159 Net securities gains/(losses) (Non-interest income) Related income tax effect ⁽²⁾ ( 61 ) ( 2 ) ( 119 ) ( 39 ) Provision for income taxes Net effect on accumulated other comprehensive ( 49 ) 6 ( 107 ) 120 Defined benefit plans (3) : Amortization of net (gain) loss and prior service costs ( 101 ) 99 ( 202 ) 198 Employee benefits (Non-interest expense) Related income tax effect ⁽²⁾ 24 ( 24 ) 72 ( 48 ) Provision for income taxes Net effect on accumulated other comprehensive ( 77 ) 75 ( 130 ) 150 Total reclassifications for the period $ ( 126 ) $ 81 $ ( 237 ) $ 270 (1) For additional detail related to unrealized gains on securities and related amounts reclassified from accumulated other comprehensive income, see Note 3, “Securities.” (2) Income tax expense or benefit is calculated using a combined Federal and State income tax rate approximating 24 % in both periods presented. (3) Included in the computation of net periodic pension cost. See Note 7, “Benefit Plans” for additional detail.

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	6 Months Ended
	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments to Extend Credit, Guarantees and Various Letters of Credit Outstanding	The following table presents total commitments to extend credit, guarantees and various letters of credit outstanding: June 30, December 31, (unaudited, in thousands) 2024 2023 Lines of credit $ 4,146,287 $ 4,016,658 Loans approved but not closed 402,020 275,954 Overdraft limits 396,034 391,598 Letters of credit 43,591 38,929 Contingent obligations and other guarantees 9,394 15,037

Business Segments (Tables)

Business Segments (Tables)	6 Months Ended
	Jun. 30, 2024
Segment Reporting [Abstract]
Financial Information by Business Segment	Condensed financial information by business segment is presented below: Trust and Community Investment (unaudited, in thousands) Banking Services Consolidated For The Three Months Ended June 30, 2024 Interest and dividend income $ 202,993 $ — $ 202,993 Interest expense 86,400 — 86,400 Net interest income 116,593 — 116,593 Provision for credit losses 10,541 — 10,541 Net interest income after provision for credit losses 106,052 — 106,052 Non-interest income 24,052 7,303 31,355 Non-interest expense 97,403 4,989 102,392 Income before provision for income taxes 32,701 2,314 35,015 Provision for income taxes 5,613 486 6,099 Net income 27,088 1,828 28,916 Preferred stock dividends 2,531 — 2,531 Net income available to common shareholders $ 24,557 $ 1,828 $ 26,385 For The Three Months Ended June 30, 2023 Interest and dividend income $ 176,055 $ — $ 176,055 Interest expense 54,488 — 54,488 Net interest income 121,567 — 121,567 Provision for credit losses 3,028 — 3,028 Net interest income after provision for credit losses 118,539 — 118,539 Non-interest income 24,923 6,918 31,841 Non-interest expense 91,818 4,619 96,437 Income before provision for income taxes 51,644 2,299 53,943 Provision for income taxes 8,580 483 9,063 Net income 43,064 1,816 44,880 Preferred stock dividends 2,531 — 2,531 Net income available to common shareholders $ 40,533 $ 1,816 $ 42,349 For the Six Months Ended June 30, 2024 Interest and dividend income $ 398,327 $ — $ 398,327 Interest expense 167,767 — 167,767 Net interest income 230,560 — 230,560 Provision for credit losses 14,555 — 14,555 Net interest income after provision for credit losses 216,005 — 216,005 Non-interest income 46,599 15,385 61,984 Non-interest expense 189,373 10,212 199,585 Income before provision for income taxes 73,231 5,173 78,404 Provision for income taxes 12,709 1,086 13,795 Net income 60,522 4,087 64,609 Preferred stock dividends 5,063 — 5,063 Net income available to common shareholders $ 55,459 $ 4,087 $ 59,546 For the Six Months Ended June 30, 2023 Interest and dividend income $ 336,609 $ — $ 336,609 Interest expense 90,711 — 90,711 Net interest income 245,898 — 245,898 Provision for credit losses 6,605 — 6,605 Net interest income after provision for credit losses 239,293 — 239,293 Non-interest income 45,081 14,412 59,493 Non-interest expense 183,433 9,127 192,560 Income before provision for income taxes 100,941 5,285 106,226 Provision for income taxes 17,895 1,110 19,005 Net income 83,046 4,175 87,221 Preferred stock dividends 5,063 — 5,063 Net income available to common shareholders $ 77,983 $ 4,175 $ 82,158

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Detail)	Jun. 30, 2024
ASU 2023-05 - Business Combinations-Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement
Summary Of Significant Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2025
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true
ASU 2023-02 Investments Equity Method and Joint Ventures (Topic 323)
Summary Of Significant Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2024
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true
ASU 2023-01 - Leases (Topic 842): Common Control Arrangements
Summary Of Significant Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2024
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true
ASU 2022-04 - Liabilities Supplier Finance Programs (Sub-topic 405-50)
Summary Of Significant Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2024
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true
ASU 2022-03 - Fair Value Measurement (Topic 820)
Summary Of Significant Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2024
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true

Earnings Per Common Share - Sum

Earnings Per Common Share - Summary of Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator for both basic and diluted earnings per common share:
Net income available to common shareholders	$ 26,385	$ 42,349	$ 59,546	$ 82,158
Denominator:
Total average basic common shares outstanding	59,521,872	59,263,949	59,452,315	59,240,958
Effect of dilutive stock options and other stock compensation	134,557	121,898	140,645	148,356
Total diluted average common shares outstanding	59,656,429	59,385,847	59,592,960	59,389,314
Earnings per common share - basic	$ 0.44	$ 0.71	$ 1	$ 1.39
Earnings per common share - diluted	$ 0.44	$ 0.71	$ 1	$ 1.38

Earnings Per Common Share - Add

Earnings Per Common Share - Additional Information (Detail) - shares	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Schedule Of Antidilutive Securities Included In Computation Of Earnings Per Share [Line Items]
Shares contingently issuable under shareholder return plan	0	37,296
Stock Option [Member]
Schedule Of Antidilutive Securities Included In Computation Of Earnings Per Share [Line Items]
Securities excluded from computation of net income per diluted shares	634,751	603,767
Restricted Stock [Member]
Schedule Of Antidilutive Securities Included In Computation Of Earnings Per Share [Line Items]
Shares contingently issuable under shareholder return plan	104,594	68,767
2023 TSR Plan [Member]
Schedule Of Antidilutive Securities Included In Computation Of Earnings Per Share [Line Items]
Shares contingently issuable under shareholder return plan	0

Securities - Schedule of Fair V

Securities - Schedule of Fair Value and Amortized Cost of Available-for-sale and Held-to-maturity Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	$ 2,420,781	$ 2,501,188
Available-for-sale, Gross Unrealized Gains	101	225
Available-for-sale, Gross Unrealized Losses	(318,759)	(307,084)
Available-for-sale, Fair Value	2,102,123	2,194,329
Held-to-maturity, Amortized Cost	1,179,684	1,199,527
Held-to-maturity, Gross Unrealized Gains	105	852
Held-to-maturity, Gross Unrealized Losses	(151,357)	(131,220)
Held-to-maturity securities, Fair value	1,028,432	1,069,159
Total debt securities, Amortized Cost	3,600,465	3,700,715
Total debt securities, Gross Unrealized Gains	206	1,077
Total debt securities, Gross Unrealized Losses	(470,116)	(438,304)
Total securities, Fair Value	3,130,555	3,263,488
U.S. Treasury [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	49,099
Available-for-sale, Gross Unrealized Gains	4
Available-for-sale, Fair Value	49,103
U.S. Government Sponsored Entities and Agencies [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	231,912	238,676
Available-for-sale, Gross Unrealized Losses	(32,654)	(30,310)
Available-for-sale, Fair Value	199,258	208,366
Held-to-maturity, Amortized Cost	3,300	3,587
Held-to-maturity, Gross Unrealized Losses	(321)	(313)
Held-to-maturity securities, Fair value	2,979	3,274
Residential Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	1,791,043	1,897,511
Available-for-sale, Gross Unrealized Gains	51	47
Available-for-sale, Gross Unrealized Losses	(277,066)	(267,874)
Available-for-sale, Fair Value	1,514,028	1,629,684
Held-to-maturity, Amortized Cost	35,776	38,893
Held-to-maturity, Gross Unrealized Losses	(3,150)	(3,017)
Held-to-maturity securities, Fair value	32,626	35,876
Commercial Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	261,150	274,220
Available-for-sale, Gross Unrealized Gains	40	11
Available-for-sale, Gross Unrealized Losses	(5,000)	(5,924)
Available-for-sale, Fair Value	256,190	268,307
Obligations of State and Political Subdivisions [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	75,609	78,819
Available-for-sale, Gross Unrealized Gains	6	167
Available-for-sale, Gross Unrealized Losses	(3,859)	(2,861)
Available-for-sale, Fair Value	71,756	76,125
Held-to-maturity, Amortized Cost	1,122,395	1,136,779
Held-to-maturity, Gross Unrealized Gains	105	852
Held-to-maturity, Gross Unrealized Losses	(147,546)	(127,518)
Held-to-maturity securities, Fair value	974,954	1,010,113
Corporate Debt Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	11,968	11,962
Available-for-sale, Gross Unrealized Losses	(180)	(115)
Available-for-sale, Fair Value	11,788	11,847
Held-to-maturity, Amortized Cost	18,213	20,268
Held-to-maturity, Gross Unrealized Losses	(340)	(372)
Held-to-maturity securities, Fair value	$ 17,873	$ 19,896

Securities - Schedule of Fair_2

Securities - Schedule of Fair Value and Amortized Cost of Available-for-sale and Held-to-maturity Securities (Parenthetical) (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Allowance for credit losses, held-to-maturity debt securities	$ 163	$ 192

Securities - Additional Informa

Securities - Additional Information (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($) Holding	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) Holding
Schedule Of Available For Sale Securities And Held To Maturity [Line Items]
Maximum percentage of equity of one issuer	10%
Number of holdings greater than specified percentage of equity | Holding	0		0
Equities securities	$ 13,091		$ 12,320
Other assets	411,606		388,561
Proceeds from sale of available-for-sale securities	0	$ 28,317
Net unrealized losses on available-for-sale securities included in AOCI	241,600		233,200
Accrued interest receivable	79,759		77,435
Federal home loan bank stock, Total	67,200		62,000
Asset Pledged as Security
Schedule Of Available For Sale Securities And Held To Maturity [Line Items]
Other assets	2,000,000		2,100,000
Us Government Securities and Mortgage Backed and Collateralized Securities Issued By Direct Governmental Entity or Government-Sponsored Entity [Member]
Schedule Of Available For Sale Securities And Held To Maturity [Line Items]
Estimated credit losses	0
Held-to-maturity Securities [Member]
Schedule Of Available For Sale Securities And Held To Maturity [Line Items]
Accrued interest receivable	8,600		8,800
Grantor Trusts [Member]
Schedule Of Available For Sale Securities And Held To Maturity [Line Items]
Equities securities	$ 10,600		$ 9,700

Securities - Schedule of Amorti

Securities - Schedule of Amortized Cost and Fair Value of Available-for-Sale and Held-to-Maturity Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Amortized Cost And Fair Value Debt Securities [Abstract]
Total available-for-sale debt securities, Amortized Cost, Within one year	$ 75,322
Total available-for-sale debt securities, Amortized Cost, After 1 year through 5 years	170,101
Total available-for-sale debt securities, Amortized Cost, After 5 years through 10 years	295,411
Total available-for-sale debt securities, Amortized Cost, After 10 years	1,879,947
Available-for-sale, Amortized Cost	2,420,781	$ 2,501,188
Total held-to-maturity debt securities, Amortized Cost, Within one year	22,438
Total held-to-maturity debt securities, Amortized Cost, After 1 year through 5 years	114,612
Total held-to-maturity debt securities, Amortized Cost, After 5 years through 10 years	501,534
Total held-to-maturity debt securities, Amortized Cost, After 10 years	541,100
Held-to-maturity, Amortized Cost	1,179,684	1,199,527
Total debt securities, Amortized Cost	3,600,465	3,700,715
Total available-for-sale debt securities, Fair Value, Within one year	75,127
Total available-for-sale debt securities, Fair Value, After 1 year through 5 years	165,339
Total available-for-sale debt securities, Fair Value, After 5 years through 10 years	278,986
Total available-for-sale debt securities, Fair Value, After 10 years	1,582,671
Total available-for-sale debt securities, Fair Value	2,102,123	2,194,329
Total held-to-maturity debt securities, Fair Value, Within one year	22,325
Total held-to-maturity debt securities, Fair Value, After 1 year through 5 years	112,057
Total held-to-maturity debt securities, Fair Value, After 5 years through 10 years	453,682
Total held-to-maturity debt securities, Fair Value, After 10 years	440,368
Total held-to-maturity debt securities, Fair Value	1,028,432	1,069,159
Total debt securities, Fair Value	$ 3,130,555	$ 3,263,488

Securities - Schedule of Gross

Securities - Schedule of Gross Realized Gains and Losses on the Sales and Calls of Securities as well as Gains and Losses on Equity Securities (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Debt securities:
Gross realized gains		$ 2		$ 65
Gross realized losses	$ (12)	(9)	$ (12)	(206)
Net losses on debt securities	(12)	(7)	(12)	(141)
Equity securities:
Net unrealized gains recognized on securities still held	147	212	684	491
Net securities gains	$ 135	$ 205	$ 672	$ 350

Securities - Schedule of Allowa

Securities - Schedule of Allowance for Credit Losses on Held-to-maturity Securities (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items]
Beginning balance	$ 192
Ending balance	163
ASU 2016-13 [Member]
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items]
Beginning balance	192	$ 220
Current period provision	(29)	(27)
Ending balance	163	193
ASU 2016-13 [Member] | Obligations of State and Political Subdivisions [Member]
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items]
Beginning balance	160	167
Current period provision	(12)	(12)
Ending balance	148	155
ASU 2016-13 [Member] | Corporate Debt Securities [Member]
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items]
Beginning balance	32	53
Current period provision	(17)	(15)
Ending balance	$ 15	$ 38

Securities - Schedule of Unreal

Securities - Schedule of Unrealized Losses on Investment Securities (Detail) $ in Thousands	Jun. 30, 2024 USD ($) Security	Dec. 31, 2023 USD ($) Security
Net Unrealized Gains And Losses On Investments [Line Items]
Less than 12 months, Fair Value	$ 15,817	$ 20,407
Less than 12 months, Unrealized Losses	$ (209)	$ (136)
Less than 12 months, Number of Securities | Security	17	24
12 months or more, Fair Value	$ 2,013,652	$ 2,141,624
12 months or more, Unrealized Losses	$ (318,550)	$ (306,948)
12 months or more, Number of Securities | Security	665	654
Fair Value, Total	$ 2,029,469	$ 2,162,031
Unrealized Losses, Total	$ (318,759)	$ (307,084)
Number of Securities Total | Security	682	678
U.S. Government Sponsored Entities and Agencies [Member]
Net Unrealized Gains And Losses On Investments [Line Items]
Less than 12 months, Fair Value		$ 18
Less than 12 months, Unrealized Losses		$ (1)
Less than 12 months, Number of Securities | Security		1
12 months or more, Fair Value	$ 199,258	$ 208,348
12 months or more, Unrealized Losses	$ (32,654)	$ (30,309)
12 months or more, Number of Securities | Security	45	45
Fair Value, Total	$ 199,258	$ 208,366
Unrealized Losses, Total	$ (32,654)	$ (30,310)
Number of Securities Total | Security	45	46
Residential Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member]
Net Unrealized Gains And Losses On Investments [Line Items]
12 months or more, Fair Value	$ 1,510,101	$ 1,625,144
12 months or more, Unrealized Losses	$ (277,066)	$ (267,874)
12 months or more, Number of Securities | Security	463	467
Fair Value, Total	$ 1,510,101	$ 1,625,144
Unrealized Losses, Total	$ (277,066)	$ (267,874)
Number of Securities Total | Security	463	467
Commercial Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member]
Net Unrealized Gains And Losses On Investments [Line Items]
Less than 12 months, Fair Value		$ 5,520
Less than 12 months, Unrealized Losses		$ (31)
Less than 12 months, Number of Securities | Security		1
12 months or more, Fair Value	$ 239,948	$ 251,765
12 months or more, Unrealized Losses	$ (5,000)	$ (5,893)
12 months or more, Number of Securities | Security	59	60
Fair Value, Total	$ 239,948	$ 257,285
Unrealized Losses, Total	$ (5,000)	$ (5,924)
Number of Securities Total | Security	59	61
Obligations of State and Political Subdivisions [Member]
Net Unrealized Gains And Losses On Investments [Line Items]
Less than 12 months, Fair Value	$ 11,336	$ 10,387
Less than 12 months, Unrealized Losses	$ (190)	$ (86)
Less than 12 months, Number of Securities | Security	13	19
12 months or more, Fair Value	$ 57,038	$ 49,002
12 months or more, Unrealized Losses	$ (3,669)	$ (2,775)
12 months or more, Number of Securities | Security	96	79
Fair Value, Total	$ 68,374	$ 59,389
Unrealized Losses, Total	$ (3,859)	$ (2,861)
Number of Securities Total | Security	109	98
Corporate Debt Securities [Member]
Net Unrealized Gains And Losses On Investments [Line Items]
Less than 12 months, Fair Value	$ 4,481	$ 4,482
Less than 12 months, Unrealized Losses	$ (19)	$ (18)
Less than 12 months, Number of Securities | Security	4	3
12 months or more, Fair Value	$ 7,307	$ 7,365
12 months or more, Unrealized Losses	$ (161)	$ (97)
12 months or more, Number of Securities | Security	2	3
Fair Value, Total	$ 11,788	$ 11,847
Unrealized Losses, Total	$ (180)	$ (115)
Number of Securities Total | Security	6	6

Loans and the Allowance for C_3

Loans and the Allowance for Credit Losses - Additional Information (Detail) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Recorded Investment [Line Items]
Net deferred loan fee income (costs)	$ (10,900,000)		$ (11,500,000)
Un-accreted discount on purchased loans from acquisitions	12,000,000		13,500,000
Reserve on accrued interest related to CARES Act	$ 100,000
Percentage of national unemployment projection	4.40%
Expected average percentage of national unemployment in future	4.80%
Accrued interest receivable for loans	$ 65,100,000		62,200,000
Accrued interest receivable for loans related to CARES Act	15,000,000		15,600,000
Aggregate amount of residential real estate, home equity and consumer loans classified as substandard	21,400,000		20,000,000
Internally assigned loan grades to residential real estate, home equity and consumer loans	4,900,000		4,600,000
Unfunded commercial loan commitments	26,300,000		21,200,000
Other real estate owned	1,219,000		1,207,000
Net charge-offs	8,157,000	$ 2,500,000
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Other real estate owned	100,000		0
Foreclosure proceedings in process on residential real estate loans	3,800,000		4,000,000
Net charge-offs	157,000	(320,000)
90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Modification to allowance due to modified loan subsequently defaulting	0
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Net charge-offs	4,965,000	$ 740,000
Commercial and Industrial [Member] | Maximum [Member]
Financing Receivable, Recorded Investment [Line Items]
Annual sales of borrowers	100,000,000
Unfunded Loan Commitment [Member]
Financing Receivable, Recorded Investment [Line Items]
Modification loans	$ 1,000,000		$ 1,800,000

Loans and the Allowance for C_4

Loans and the Allowance for Credit Losses - Schedule of Recorded Investment in Loans by Category (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	$ 12,257,511	$ 11,638,461
Loans held for sale	25,433	16,354
Total loans	12,282,944	11,654,815
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	1,760,479	1,670,659
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	6,998,888	6,565,448
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	1,061,390	1,055,865
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	5,937,498	5,509,583
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	2,506,957	2,438,574
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	220,588	229,561
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	$ 770,599	$ 734,219

Loans and the Allowance for C_5

Loans and the Allowance for Credit Losses - Summary of Changes in Allowance for Credit Losses (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	$ 130,675	$ 117,790
Allowance for credit losses - loan commitments, beginning balance	8,604	8,368
Total beginning allowance for credit losses - loans and loan commitments	139,279	126,158
Provision for loan losses	13,991	4,876
Provision for loan commitments	590	1,756
Total provision for credit losses - loans and loan commitments	14,581	6,632
Charge-offs	(11,226)	(5,329)
Recoveries	3,069	2,829
Net (charge-offs) recoveries	(8,157)	(2,500)
Allowance for credit losses - loans, ending balance	136,509	120,166
Allowance for credit losses - loan commitments, ending balance	9,194	10,124
Total ending allowance for credit losses - loans and loan commitments	145,703	130,290
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	36,644	31,540
Allowance for credit losses - loan commitments, beginning balance	429
Total beginning allowance for credit losses - loans and loan commitments	37,073	31,540
Provision for loan losses	9,726	1,337
Provision for loan commitments	(429)	527
Total provision for credit losses - loans and loan commitments	9,297	1,864
Charge-offs	(6,072)	(999)
Recoveries	1,107	259
Net (charge-offs) recoveries	(4,965)	(740)
Allowance for credit losses - loans, ending balance	41,405	32,137
Allowance for credit losses - loan commitments, ending balance	0	527
Total ending allowance for credit losses - loans and loan commitments	41,405	32,664
Deposit Overdraft [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	1,366	1,285
Total beginning allowance for credit losses - loans and loan commitments	1,366	1,285
Provision for loan losses	833	407
Total provision for credit losses - loans and loan commitments	833	407
Charge-offs	(861)	(818)
Recoveries	213	221
Net (charge-offs) recoveries	(648)	(597)
Allowance for credit losses - loans, ending balance	1,551	1,095
Total ending allowance for credit losses - loans and loan commitments	1,551	1,095
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	7,123	6,737
Allowance for credit losses - loan commitments, beginning balance	6,894	6,025
Total beginning allowance for credit losses - loans and loan commitments	14,017	12,762
Provision for loan losses	1,516	(845)
Provision for loan commitments	1,046	1,168
Total provision for credit losses - loans and loan commitments	2,562	323
Charge-offs	(813)	(222)
Recoveries		128
Net (charge-offs) recoveries	(813)	(94)
Allowance for credit losses - loans, ending balance	7,826	5,798
Allowance for credit losses - loan commitments, ending balance	7,940	7,193
Total ending allowance for credit losses - loans and loan commitments	15,766	12,991
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	59,351	52,659
Total beginning allowance for credit losses - loans and loan commitments	59,351	52,659
Provision for loan losses	(402)	1,246
Provision for loan commitments		182
Total provision for credit losses - loans and loan commitments	(402)	1,428
Charge-offs	(815)	(1,381)
Recoveries	443	427
Net (charge-offs) recoveries	(372)	(954)
Allowance for credit losses - loans, ending balance	58,577	52,951
Allowance for credit losses - loan commitments, ending balance		182
Total ending allowance for credit losses - loans and loan commitments	58,577	53,133
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	21,218	18,208
Allowance for credit losses - loan commitments, beginning balance	1,276	2,215
Total beginning allowance for credit losses - loans and loan commitments	22,494	20,423
Provision for loan losses	1,342	1,787
Provision for loan commitments	(22)	(621)
Total provision for credit losses - loans and loan commitments	1,320	1,166
Charge-offs	(272)	7
Recoveries	115	313
Net (charge-offs) recoveries	(157)	320
Allowance for credit losses - loans, ending balance	22,403	20,315
Allowance for credit losses - loan commitments, ending balance	1,254	1,594
Total ending allowance for credit losses - loans and loan commitments	23,657	21,909
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	3,956	3,127
Total beginning allowance for credit losses - loans and loan commitments	3,956	3,127
Provision for loan losses	773	693
Total provision for credit losses - loans and loan commitments	773	693
Charge-offs	(1,980)	(1,601)
Recoveries	894	1,231
Net (charge-offs) recoveries	(1,086)	(370)
Allowance for credit losses - loans, ending balance	3,643	3,450
Total ending allowance for credit losses - loans and loan commitments	3,643	3,450
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	1,017	4,234
Allowance for credit losses - loan commitments, beginning balance	5	128
Total beginning allowance for credit losses - loans and loan commitments	1,022	4,362
Provision for loan losses	203	251
Provision for loan commitments	(5)	500
Total provision for credit losses - loans and loan commitments	198	751
Charge-offs	(413)	(315)
Recoveries	297	250
Net (charge-offs) recoveries	(116)	(65)
Allowance for credit losses - loans, ending balance	1,104	4,420
Allowance for credit losses - loan commitments, ending balance	0	628
Total ending allowance for credit losses - loans and loan commitments	$ 1,104	$ 5,048

Loans and the Allowance for C_6

Loans and the Allowance for Credit Losses - Summary of Changes in Allowance for Credit Losses (Parenthetical) (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Receivables [Abstract]
Deposit overdrafts	$ 4.6	$ 4.7	$ 4.5

Loans and the Allowance for C_7

Loans and the Allowance for Credit Losses - Allowance for Credit Losses and Recorded Investments in Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans individually evaluated for impairment	$ 8,782	$ 5,745
Allowance for loans collectively evaluated for impairment	127,727	124,930
Allowance for loan commitments	9,194	8,604	$ 10,124	$ 8,368
Total allowance for credit losses - loans and commitments	145,703	139,279	130,290	126,158
Individually evaluated for credit loss	40,124	37,045
Collectively-evaluated for credit losses	12,217,387	11,601,416
Total loans	12,257,511	11,638,461
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans individually evaluated for impairment	3,344
Allowance for loans collectively evaluated for impairment	38,061	36,644
Allowance for loan commitments	0	429	527
Total allowance for credit losses - loans and commitments	41,405	37,073	32,664	31,540
Individually evaluated for credit loss	3,916	116
Collectively-evaluated for credit losses	1,756,563	1,670,543
Total loans	1,760,479	1,670,659
Deposit Overdraft [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans collectively evaluated for impairment	1,551	1,366
Total allowance for credit losses - loans and commitments	1,551	1,366	1,095	1,285
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	6,998,888	6,565,448
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans collectively evaluated for impairment	7,826	7,123
Allowance for loan commitments	7,940	6,894	7,193	6,025
Total allowance for credit losses - loans and commitments	15,766	14,017	12,991	12,762
Collectively-evaluated for credit losses	1,061,390	1,055,865
Total loans	1,061,390	1,055,865
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans individually evaluated for impairment	5,438	5,745
Allowance for loans collectively evaluated for impairment	53,139	53,606
Allowance for loan commitments			182
Total allowance for credit losses - loans and commitments	58,577	59,351	53,133	52,659
Individually evaluated for credit loss	36,208	36,929
Collectively-evaluated for credit losses	5,901,290	5,472,654
Total loans	5,937,498	5,509,583
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans collectively evaluated for impairment	22,403	21,218
Allowance for loan commitments	1,254	1,276	1,594	2,215
Total allowance for credit losses - loans and commitments	23,657	22,494	21,909	20,423
Collectively-evaluated for credit losses	2,506,957	2,438,574
Total loans	2,506,957	2,438,574
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans collectively evaluated for impairment	3,643	3,956
Total allowance for credit losses - loans and commitments	3,643	3,956	3,450	3,127
Collectively-evaluated for credit losses	220,588	229,561
Total loans	220,588	229,561
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans collectively evaluated for impairment	1,104	1,017
Allowance for loan commitments	0	5	628	128
Total allowance for credit losses - loans and commitments	1,104	1,022	$ 5,048	$ 4,362
Collectively-evaluated for credit losses	770,599	734,219
Total loans	$ 770,599	$ 734,219

Loans and the Allowance for C_8

Loans and the Allowance for Credit Losses - Allowance for Credit Losses and Recorded Investments in Loans (Parenthetical) (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Receivables [Abstract]
Deposit overdrafts	$ 4.6	$ 4.7	$ 4.5

Loans and the Allowance for C_9

Loans and the Allowance for Credit Losses - Summary of Commercial Loans by Risk Grade (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	$ 12,257,511	$ 11,638,461
Commercial and Industrial [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,760,479	1,670,659
Commercial and Industrial [Member] | Pass [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,681,579	1,586,683
Commercial and Industrial [Member] | Criticized [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	70,056	73,204
Commercial and Industrial [Member] | Classified - substandard [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	8,844	10,772
Commercial Portfolio Segment [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	8,759,367	8,236,107
Commercial Portfolio Segment [Member] | Pass [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	8,496,002	7,977,436
Commercial Portfolio Segment [Member] | Criticized [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	179,621	183,174
Commercial Portfolio Segment [Member] | Classified - substandard [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	83,744	75,497
Commercial Portfolio Segment [Member] | Commercial Real Estate - Land and Construction [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,061,390	1,055,865
Commercial Portfolio Segment [Member] | Commercial Real Estate - Land and Construction [Member] | Pass [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,058,739	1,053,359
Commercial Portfolio Segment [Member] | Commercial Real Estate - Land and Construction [Member] | Criticized [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	972	2,497
Commercial Portfolio Segment [Member] | Commercial Real Estate - Land and Construction [Member] | Classified - substandard [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,679	9
Commercial Portfolio Segment [Member] | Commercial Real Estate - Improved Property [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	5,937,498	5,509,583
Commercial Portfolio Segment [Member] | Commercial Real Estate - Improved Property [Member] | Pass [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	5,755,684	5,337,394
Commercial Portfolio Segment [Member] | Commercial Real Estate - Improved Property [Member] | Criticized [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	108,593	107,473
Commercial Portfolio Segment [Member] | Commercial Real Estate - Improved Property [Member] | Classified - substandard [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	73,221	64,716
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,760,479	1,670,659
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Pass [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,681,579	1,586,683
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Criticized [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	70,056	73,204
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Classified - substandard [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	$ 8,844	$ 10,772

Loans and the Allowance for _10

Loans and the Allowance for Credit Losses - Summary of Age Analysis of Loan Categories (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	$ 12,257,511	$ 11,638,461
90 Days or More Past Due and Accruing	9,171	9,638
Loans held for sale	25,433	16,354
Total loans, current	12,228,836	11,604,632
Total loans	12,282,944	11,654,815
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	770,599	734,219
90 Days or More Past Due and Accruing	1,417	1,407
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	6,998,888	6,565,448
90 Days or More Past Due and Accruing	1,296	1,899
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	2,506,957	2,438,574
90 Days or More Past Due and Accruing	3,089	2,602
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	220,588	229,561
90 Days or More Past Due and Accruing	390	546
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,061,390	1,055,865
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	5,937,498	5,509,583
90 Days or More Past Due and Accruing	1,296	1,899
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,760,479	1,670,659
90 Days or More Past Due and Accruing	2,979	3,184
Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	35,468	26,808
Current [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	12,203,403	11,588,278
Loans held for sale, current	25,433	16,354
Current [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	760,764	724,293
Current [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	6,978,436	6,546,811
Current [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	2,494,815	2,429,200
Current [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	215,501	223,989
Current [Member] | Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,061,390	1,055,865
Current [Member] | Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	5,917,046	5,490,946
Current [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,753,887	1,663,985
Current [Member] | Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	10,858	9,138
30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	11,656	15,152
30-59 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	3,662	4,691
30-59 Days Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	2,415	4,416
30-59 Days Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,123	1,572
30-59 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	3,625	3,833
30-59 Days Past Due [Member] | Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	2,415	4,416
30-59 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	831	640
30-59 Days Past Due [Member] | Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	322	1,300
60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	9,893	9,729
60-89 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,425	1,198
60-89 Days Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	2,119	3,627
60-89 Days Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	3,987	2,471
60-89 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,028	1,178
60-89 Days Past Due [Member] | Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	2,119	3,627
60-89 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,334	1,255
60-89 Days Past Due [Member] | Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	900	706
90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	32,559	25,302
90 Days or More Past Due [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	4,748	4,037
90 Days or More Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	15,918	10,594
90 Days or More Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	7,032	5,331
90 Days or More Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	434	561
90 Days or More Past Due [Member] | Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	15,918	10,594
90 Days or More Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	4,427	4,779
90 Days or More Past Due [Member] | Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	23,388	15,664
Total Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	54,108	50,183
Total Past Due [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	9,835	9,926
Total Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	20,452	18,637
Total Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	12,142	9,374
Total Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	5,087	5,572
Total Past Due [Member] | Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	20,452	18,637
Total Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	6,592	6,674
Total Past Due [Member] | Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	$ 24,610	$ 17,670

Loans and the Allowance for _11

Loans and the Allowance for Credit Losses - Summary of Nonperforming Loans (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Impaired [Line Items]
Total impaired loans, Recorded investment	$ 35,468		$ 35,468		$ 26,808
Nonperforming Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	46,051		46,051		35,493
Recorded Investment, With no specific allowance recorded	35,468		35,468		26,808
Total impaired loans, Unpaid principal balance	46,051		46,051		35,493
Total impaired loans, Recorded investment	35,468		35,468		26,808
Average recorded investment, with no related specific allowance	34,194	$ 35,386	31,732	$ 37,394
Total impaired loans, Average recorded investment	34,194	35,386	31,732	37,394
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Total impaired loans, Recorded investment	16,940		16,940		9,557
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Total impaired loans, Recorded investment	11,005		11,005		10,582
Residential Real Estate [Member] | Nonperforming Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	15,638		15,638		15,128
Recorded Investment, With no specific allowance recorded	11,005		11,005		10,582
Average recorded investment, with no related specific allowance	11,342	12,744	11,089	13,848
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Total impaired loans, Recorded investment	64		64		51
Consumer [Member] | Nonperforming Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	114		114		104
Recorded Investment, With no specific allowance recorded	64		64		51
Average recorded investment, with no related specific allowance	69	104	63	122
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Total impaired loans, Recorded investment	5,401		5,401		4,777
Home Equity [Member] | Nonperforming Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	7,144		7,144		6,521
Recorded Investment, With no specific allowance recorded	5,401		5,401		4,777
Average recorded investment, with no related specific allowance	5,035	5,061	4,949	5,165
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Total impaired loans, Recorded investment	184		184
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member] | Nonperforming Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	1,023		1,023
Recorded Investment, With no specific allowance recorded	184		184
Average recorded investment, with no related specific allowance	197		131	37
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Total impaired loans, Recorded investment	16,756		16,756		9,557
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Nonperforming Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	18,874		18,874		11,248
Recorded Investment, With no specific allowance recorded	16,756		16,756		9,557
Average recorded investment, with no related specific allowance	15,140	14,698	13,279	15,332
Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Total impaired loans, Recorded investment	2,058		2,058		1,841
Commercial and Industrial [Member] | Nonperforming Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	3,258		3,258		2,492
Recorded Investment, With no specific allowance recorded	2,058		2,058		$ 1,841
Average recorded investment, with no related specific allowance	$ 2,412	$ 2,780	$ 2,221	$ 2,890

Loans and the Allowance for _12

Loans and the Allowance for Credit Losses - Recorded Investment in Non-Accrual Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Impaired [Line Items]
Non-accrual loans	$ 35,468	$ 26,808
Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	2,058	1,841
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	5,401	4,777
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	16,940	9,557
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	184
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	16,756	9,557
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	11,005	10,582
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	$ 64	$ 51

Loans and the Allowance for _13

Loans and the Allowance for Credit Losses - Recorded Investment in Non-Accrual Loans (Parenthetical) (Detail)	Jun. 30, 2024 USD ($) Borrower	Dec. 31, 2023 USD ($) Borrower
Receivables [Abstract]
Number of borrowers with loan balance greater than one million | Borrower	5	2
Borrowers with large amount of loans outstanding, minimum amount of loans per borrower	$ 1,000,000	$ 1,000,000
Borrowers with large amount of loans outstanding, net	$ 13,600,000	$ 7,200,000

Loans and the Allowance for _14

Loans and the Allowance for Credit Losses - Summary of Details of Portfolio Loans Modified by Loan Category (Details) - ASU 2022-02 Financial Instruments - Credit Losses (Topic 326) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Financing Receivable, Modified [Line Items]
Modification loans	$ 5,275	$ 11,832	$ 27,209	$ 24,286
Percentage of total by loan category		0.10%	0.20%	0.20%
Term Extension [Member]
Financing Receivable, Modified [Line Items]
Modification loans	4,879	$ 10,812	$ 25,789	$ 22,872
Payment Delay [Member]
Financing Receivable, Modified [Line Items]
Modification loans	396	1,020	1,420	1,414
Home Equity [Member]
Financing Receivable, Modified [Line Items]
Modification loans	109	$ 483	$ 449	$ 759
Percentage of total by loan category		0.10%	0.10%	0.10%
Home Equity [Member] | Term Extension [Member]
Financing Receivable, Modified [Line Items]
Modification loans				$ 8
Home Equity [Member] | Payment Delay [Member]
Financing Receivable, Modified [Line Items]
Modification loans	109	$ 483	$ 449	751
Residential Real Estate [Member]
Financing Receivable, Modified [Line Items]
Modification loans	164		739	$ 100
Percentage of total by loan category				0%
Residential Real Estate [Member] | Payment Delay [Member]
Financing Receivable, Modified [Line Items]
Modification loans	164		739	$ 100
Consumer [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 114	$ 267	$ 223	$ 293
Percentage of total by loan category	0.10%	0.10%	0.10%	0.10%
Consumer [Member] | Payment Delay [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 114	$ 267	$ 223	$ 293
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified [Line Items]
Modification loans	5	$ 448	5	$ 6,449
Percentage of total by loan category		0.10%		0.80%
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member] | Term Extension [Member]
Financing Receivable, Modified [Line Items]
Modification loans	5	$ 448	5	$ 6,449
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 4,378	$ 4,090	$ 25,288	$ 7,375
Percentage of total by loan category	0.10%	0.10%	0.40%	0.10%
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Term Extension [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 4,378	$ 3,820	$ 25,288	$ 7,105
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Payment Delay [Member]
Financing Receivable, Modified [Line Items]
Modification loans		270		270
Commercial and Industrial [Member]
Financing Receivable, Modified [Line Items]
Modification loans	505	$ 6,544	505	$ 9,310
Percentage of total by loan category		0.40%		0.60%
Commercial and Industrial [Member] | Term Extension [Member]
Financing Receivable, Modified [Line Items]
Modification loans	496	$ 6,544	496	$ 9,310
Commercial and Industrial [Member] | Payment Delay [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 9		$ 9

Loans and the Allowance for _15

Loans and the Allowance for Credit Losses - Summary of Financial Impacts of Loan Modifications and Payment Deferrals to Portfolio Loans (Details) - ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Home Equity [Member]
Financing Receivable, Modified [Line Items]
Weighted-average term extension (in months)				120 months
Commercial and Industrial [Member]
Financing Receivable, Modified [Line Items]
Weighted-average term extension (in months)	33 months	8 months	33 months	9 months
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified [Line Items]
Weighted-average term extension (in months)	24 months	12 months	24 months	4 months
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified [Line Items]
Weighted-average term extension (in months)	4 months	9 months	9 months	22 months

Loans and the Allowance for _16

Loans and the Allowance for Credit Losses - Summary of Loans with MBEFDs (Details) - ASU 2022-02 Financial Instruments - Credit Losses (Topic 326) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024
Financing Receivable, Modified [Line Items]
Loans that subsequently defaulted	$ 211	$ 346
Term Extension [Member]
Financing Receivable, Modified [Line Items]
Loans that subsequently defaulted	180	180
Payment Delay [Member]
Financing Receivable, Modified [Line Items]
Loans that subsequently defaulted	31	166
Commercial and Industrial [Member]
Financing Receivable, Modified [Line Items]
Loans that subsequently defaulted	180	180
Commercial and Industrial [Member] | Term Extension [Member]
Financing Receivable, Modified [Line Items]
Loans that subsequently defaulted	180	180
Residential Real Estate [Member]
Financing Receivable, Modified [Line Items]
Loans that subsequently defaulted		118
Residential Real Estate [Member] | Payment Delay [Member]
Financing Receivable, Modified [Line Items]
Loans that subsequently defaulted		118
Consumer [Member]
Financing Receivable, Modified [Line Items]
Loans that subsequently defaulted	31	48
Consumer [Member] | Payment Delay [Member]
Financing Receivable, Modified [Line Items]
Loans that subsequently defaulted	$ 31	$ 48

Loans and the Allowance for _17

Loans and the Allowance for Credit Losses - Summary of Aging Analysis of Portfolio Loans Restructured (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	$ 12,257,511	$ 11,638,461
ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	28,923		$ 24,286
Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	770,599	734,219
Home Equity [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	941		758
Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,760,479	1,670,659
Commercial and Industrial [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	505		9,311
Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,998,888	6,565,448
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,061,390	1,055,865
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5		6,449
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5,937,498	5,509,583
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	25,601		7,375
Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,506,957	2,438,574
Residential Real Estate [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,553		100
Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	220,588	229,561
Consumer [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	318		293
30-59 Days Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	11,656	15,152
30-59 Days Past Due [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	127		161
30-59 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,662	4,691
30-59 Days Past Due [Member] | Home Equity [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	15		18
30-59 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	831	640
30-59 Days Past Due [Member] | Commercial and Industrial [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	91		143
30-59 Days Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,415	4,416
30-59 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,415	4,416
30-59 Days Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,123	1,572
30-59 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,625	3,833
30-59 Days Past Due [Member] | Consumer [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	21
60-89 Days Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	9,893	9,729
60-89 Days Past Due [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	97
60-89 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,425	1,198
60-89 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,334	1,255
60-89 Days Past Due [Member] | Commercial and Industrial [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	9
60-89 Days Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,119	3,627
60-89 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,119	3,627
60-89 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	16
60-89 Days Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,987	2,471
60-89 Days Past Due [Member] | Residential Real Estate [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	36
60-89 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,028	1,178
60-89 Days Past Due [Member] | Consumer [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	36
90 Days or More Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	32,559	25,302
90 Days or More Past Due [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	472		362
90 Days or More Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	4,748	4,037
90 Days or More Past Due [Member] | Home Equity [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	176		72
90 Days or More Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	4,427	4,779
90 Days or More Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	15,918	10,594
90 Days or More Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	15,918	10,594
90 Days or More Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan			270
90 Days or More Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	7,032	5,331
90 Days or More Past Due [Member] | Residential Real Estate [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	265
90 Days or More Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	434	561
90 Days or More Past Due [Member] | Consumer [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	31		20
Total Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	54,108	50,183
Total Past Due [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	696		523
Total Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	9,835	9,926
Total Past Due [Member] | Home Equity [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	191		90
Total Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,592	6,674
Total Past Due [Member] | Commercial and Industrial [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	100		143
Total Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	20,452	18,637
Total Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	20,452	18,637
Total Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	16		270
Total Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	12,142	9,374
Total Past Due [Member] | Residential Real Estate [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	301
Total Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5,087	5,572
Total Past Due [Member] | Consumer [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	88		20
Current [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	12,203,403	11,588,278
Current [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	28,227		23,763
Current [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	760,764	724,293
Current [Member] | Home Equity [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	750		668
Current [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,753,887	1,663,985
Current [Member] | Commercial and Industrial [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	405		9,168
Current [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,978,436	6,546,811
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,061,390	1,055,865
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5		6,449
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5,917,046	5,490,946
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	25,585		7,105
Current [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,494,815	2,429,200
Current [Member] | Residential Real Estate [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,252		100
Current [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	215,501	$ 223,989
Current [Member] | Consumer [Member] | ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	$ 230		$ 273

Loans and the Allowance for _18

Loans and the Allowance for Credit Losses - Summary of Amortized Cost Basis Loan Balances by Year of Origination and Credit Quality Indicator (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 12,257,511	$ 11,638,461
30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,656	15,152
60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	9,893	9,729
90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	32,559	25,302
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	11,124	12,828
Amortized Cost Basis by Origination Year 2023	2,114	1,959
Amortized Cost Basis by Origination Year 2022	3,237	1,568
Amortized Cost Basis by Origination Year 2021	1,363	2,449
Amortized Cost Basis by Origination Year 2020	2,914	1,964
Amortized Cost Basis by Origination Year, Prior to 2019	25,629	26,482
Revolving Loans	722,064	685,163
Revolving Loans Converted to Term	2,154	1,806
Total loans	770,599	734,219
Home Equity [Member] | Current [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	11,124	12,675
Amortized Cost Basis by Origination Year 2023	1,221	1,235
Amortized Cost Basis by Origination Year 2022	2,297	1,467
Amortized Cost Basis by Origination Year 2021	961	1,571
Amortized Cost Basis by Origination Year 2020	1,961	1,614
Amortized Cost Basis by Origination Year, Prior to 2019	21,870	22,484
Revolving Loans	719,968	681,848
Revolving Loans Converted to Term	1,362	1,399
Total loans	760,764	724,293
Home Equity [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024		34
Amortized Cost Basis by Origination Year 2023	17	193
Amortized Cost Basis by Origination Year 2022	414	85
Amortized Cost Basis by Origination Year 2021	65	73
Amortized Cost Basis by Origination Year 2020	239	44
Amortized Cost Basis by Origination Year, Prior to 2019	701	947
Revolving Loans	2,096	3,315
Revolving Loans Converted to Term	130
Total loans	3,662	4,691
Home Equity [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024		119
Amortized Cost Basis by Origination Year 2023	146	318
Amortized Cost Basis by Origination Year 2022	175	16
Amortized Cost Basis by Origination Year 2021	89	68
Amortized Cost Basis by Origination Year 2020		76
Amortized Cost Basis by Origination Year, Prior to 2019	668	524
Revolving Loans Converted to Term	347	77
Total loans	1,425	1,198
Home Equity [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	730	213
Amortized Cost Basis by Origination Year 2022	351
Amortized Cost Basis by Origination Year 2021	248	737
Amortized Cost Basis by Origination Year 2020	714	230
Amortized Cost Basis by Origination Year, Prior to 2019	2,390	2,527
Revolving Loans Converted to Term	315	330
Total loans	4,748	4,037
Home Equity [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	44	139
Amortized Cost Basis by Origination Year 2022	105	57
Amortized Cost Basis by Origination Year 2021	16	29
Amortized Cost Basis by Origination Year 2020	35	79
Amortized Cost Basis by Origination Year, Prior to 2019	171	615
Revolving Loans	20	6
Revolving Loans Converted to Term	22
Total loans	413	925
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,998,888	6,565,448
Commercial Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,415	4,416
Commercial Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,119	3,627
Commercial Real Estate [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	15,918	10,594
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	97,366	277,790
Amortized Cost Basis by Origination Year 2023	261,988	430,634
Amortized Cost Basis by Origination Year 2022	362,299	445,356
Amortized Cost Basis by Origination Year 2021	417,196	185,480
Amortized Cost Basis by Origination Year 2020	178,983	86,412
Amortized Cost Basis by Origination Year, Prior to 2019	517,523	464,727
Revolving Loans Converted to Term	671,602	548,175
Total loans	2,506,957	2,438,574
Residential Real Estate [Member] | Current [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	97,366	277,790
Amortized Cost Basis by Origination Year 2023	261,988	429,835
Amortized Cost Basis by Origination Year 2022	361,520	445,322
Amortized Cost Basis by Origination Year 2021	417,068	185,139
Amortized Cost Basis by Origination Year 2020	178,481	86,149
Amortized Cost Basis by Origination Year, Prior to 2019	509,163	456,818
Revolving Loans Converted to Term	669,229	548,147
Total loans	2,494,815	2,429,200
Residential Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year, Prior to 2019	1,123	1,572
Total loans	1,123	1,572
Residential Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2022	125
Amortized Cost Basis by Origination Year 2021	94	341
Amortized Cost Basis by Origination Year 2020	337
Amortized Cost Basis by Origination Year, Prior to 2019	2,672	2,130
Revolving Loans Converted to Term	759
Total loans	3,987	2,471
Residential Real Estate [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023		799
Amortized Cost Basis by Origination Year 2022	654	34
Amortized Cost Basis by Origination Year 2021	34
Amortized Cost Basis by Origination Year 2020	165	263
Amortized Cost Basis by Origination Year, Prior to 2019	4,565	4,207
Revolving Loans Converted to Term	1,614	28
Total loans	7,032	5,331
Residential Real Estate [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2020		5
Amortized Cost Basis by Origination Year, Prior to 2019	214	387
Revolving Loans Converted to Term	58
Total loans	272	392
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	34,360	85,480
Amortized Cost Basis by Origination Year 2023	70,051	60,006
Amortized Cost Basis by Origination Year 2022	48,825	22,853
Amortized Cost Basis by Origination Year 2021	17,369	13,707
Amortized Cost Basis by Origination Year 2020	9,285	11,134
Amortized Cost Basis by Origination Year, Prior to 2019	15,275	12,429
Revolving Loans	25,422	23,948
Revolving Loans Converted to Term	1	4
Total loans	220,588	229,561
Consumer [Member] | Current [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	34,018	84,526
Amortized Cost Basis by Origination Year 2023	68,563	57,661
Amortized Cost Basis by Origination Year 2022	47,131	21,592
Amortized Cost Basis by Origination Year 2021	16,596	13,189
Amortized Cost Basis by Origination Year 2020	8,993	10,958
Amortized Cost Basis by Origination Year, Prior to 2019	14,813	12,143
Revolving Loans	25,387	23,916
Revolving Loans Converted to Term		4
Total loans	215,501	223,989
Consumer [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	269	699
Amortized Cost Basis by Origination Year 2023	1,031	1,526
Amortized Cost Basis by Origination Year 2022	1,160	952
Amortized Cost Basis by Origination Year 2021	643	343
Amortized Cost Basis by Origination Year 2020	200	162
Amortized Cost Basis by Origination Year, Prior to 2019	286	119
Revolving Loans	35	32
Revolving Loans Converted to Term	1
Total loans	3,625	3,833
Consumer [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	71	191
Amortized Cost Basis by Origination Year 2023	287	616
Amortized Cost Basis by Origination Year 2022	422	195
Amortized Cost Basis by Origination Year 2021	111	112
Amortized Cost Basis by Origination Year 2020	43	5
Amortized Cost Basis by Origination Year, Prior to 2019	94	59
Total loans	1,028	1,178
Consumer [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	2	64
Amortized Cost Basis by Origination Year 2023	170	203
Amortized Cost Basis by Origination Year 2022	112	114
Amortized Cost Basis by Origination Year 2021	19	63
Amortized Cost Basis by Origination Year 2020	49	9
Amortized Cost Basis by Origination Year, Prior to 2019	82	108
Total loans	434	561
Consumer [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024		251
Amortized Cost Basis by Origination Year 2023	560	1,921
Amortized Cost Basis by Origination Year 2022	860	901
Amortized Cost Basis by Origination Year 2021	308	301
Amortized Cost Basis by Origination Year 2020	115	100
Amortized Cost Basis by Origination Year, Prior to 2019	137	247
Revolving Loans		4
Total loans	1,980	3,725
Commercial Real Estate - Land and Construction [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	813
Revolving Loans Converted to Term		222
Total loans	813	222
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	79,862	290,954
Amortized Cost Basis by Origination Year 2023	349,374	349,549
Amortized Cost Basis by Origination Year 2022	336,084	145,043
Amortized Cost Basis by Origination Year 2021	91,369	54,172
Amortized Cost Basis by Origination Year 2020	23,345	48,655
Amortized Cost Basis by Origination Year, Prior to 2019	57,083	35,942
Revolving Loans	67,563	82,587
Revolving Loans Converted to Term	56,710	48,963
Total loans	1,061,390	1,055,865
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	79,862	290,954
Amortized Cost Basis by Origination Year 2023	349,190	349,549
Amortized Cost Basis by Origination Year 2022	336,084	145,043
Amortized Cost Basis by Origination Year 2021	91,369	54,172
Amortized Cost Basis by Origination Year 2020	23,345	48,655
Amortized Cost Basis by Origination Year, Prior to 2019	57,058	35,917
Revolving Loans	67,265	82,288
Revolving Loans Converted to Term	54,566	46,781
Total loans	1,058,739	1,053,359
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member] | Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year, Prior to 2019	17	16
Revolving Loans	298	299
Revolving Loans Converted to Term	657	2,182
Total loans	972	2,497
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member] | Classified - substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	184
Amortized Cost Basis by Origination Year, Prior to 2019	8	9
Revolving Loans Converted to Term	1,487
Total loans	1,679	9
Commercial Real Estate - Improved Property [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2022		372
Amortized Cost Basis by Origination Year, Prior to 2019	815	1,505
Total loans	815	1,877
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	262,116	496,063
Amortized Cost Basis by Origination Year 2023	545,264	1,093,322
Amortized Cost Basis by Origination Year 2022	1,153,548	612,401
Amortized Cost Basis by Origination Year 2021	605,407	588,343
Amortized Cost Basis by Origination Year 2020	605,940	543,180
Amortized Cost Basis by Origination Year, Prior to 2019	2,151,455	1,787,604
Revolving Loans	184,196	105,840
Revolving Loans Converted to Term	429,572	282,830
Total loans	5,937,498	5,509,583
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,415	4,416
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,119	3,627
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	15,918	10,594
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	258,814	494,142
Amortized Cost Basis by Origination Year 2023	529,239	1,076,535
Amortized Cost Basis by Origination Year 2022	1,134,557	603,354
Amortized Cost Basis by Origination Year 2021	596,861	581,540
Amortized Cost Basis by Origination Year 2020	598,755	514,523
Amortized Cost Basis by Origination Year, Prior to 2019	2,054,008	1,706,804
Revolving Loans	181,757	103,467
Revolving Loans Converted to Term	401,693	257,029
Total loans	5,755,684	5,337,394
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	3,302
Amortized Cost Basis by Origination Year 2023	14,165	16,270
Amortized Cost Basis by Origination Year 2022	13,200	8,630
Amortized Cost Basis by Origination Year 2021	8,135	4,387
Amortized Cost Basis by Origination Year 2020	3,549	5,185
Amortized Cost Basis by Origination Year, Prior to 2019	36,258	44,861
Revolving Loans	2,139	2,373
Revolving Loans Converted to Term	27,845	25,767
Total loans	108,593	107,473
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Classified - substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024		1,921
Amortized Cost Basis by Origination Year 2023	1,860	517
Amortized Cost Basis by Origination Year 2022	5,791	417
Amortized Cost Basis by Origination Year 2021	411	2,416
Amortized Cost Basis by Origination Year 2020	3,636	23,472
Amortized Cost Basis by Origination Year, Prior to 2019	61,189	35,939
Revolving Loans	300
Revolving Loans Converted to Term	34	34
Total loans	73,221	64,716
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	153,946	239,554
Amortized Cost Basis by Origination Year 2023	201,919	235,503
Amortized Cost Basis by Origination Year 2022	225,393	140,482
Amortized Cost Basis by Origination Year 2021	127,590	80,591
Amortized Cost Basis by Origination Year 2020	58,972	47,418
Amortized Cost Basis by Origination Year, Prior to 2019	300,709	286,268
Revolving Loans	617,003	567,823
Revolving Loans Converted to Term	74,947	73,020
Total loans	1,760,479	1,670,659
Commercial and Industrial [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	831	640
Commercial and Industrial [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,334	1,255
Commercial and Industrial [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,427	4,779
Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024	153,946	238,427
Amortized Cost Basis by Origination Year 2023	195,932	234,520
Amortized Cost Basis by Origination Year 2022	222,272	136,998
Amortized Cost Basis by Origination Year 2021	125,094	78,836
Amortized Cost Basis by Origination Year 2020	57,423	39,259
Amortized Cost Basis by Origination Year, Prior to 2019	261,606	252,826
Revolving Loans	598,810	541,400
Revolving Loans Converted to Term	66,496	64,417
Total loans	1,681,579	1,586,683
Commercial and Industrial [Member] | Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024		1,094
Amortized Cost Basis by Origination Year 2023	5,914	834
Amortized Cost Basis by Origination Year 2022	2,573	3,169
Amortized Cost Basis by Origination Year 2021	1,768	1,490
Amortized Cost Basis by Origination Year 2020	1,432	7,334
Amortized Cost Basis by Origination Year, Prior to 2019	37,694	31,526
Revolving Loans	13,199	20,626
Revolving Loans Converted to Term	7,476	7,131
Total loans	70,056	73,204
Commercial and Industrial [Member] | Classified - substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024		33
Amortized Cost Basis by Origination Year 2023	73	149
Amortized Cost Basis by Origination Year 2022	548	315
Amortized Cost Basis by Origination Year 2021	728	265
Amortized Cost Basis by Origination Year 2020	117	825
Amortized Cost Basis by Origination Year, Prior to 2019	1,409	1,916
Revolving Loans	4,994	5,797
Revolving Loans Converted to Term	975	1,472
Total loans	8,844	10,772
Commercial and Industrial [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2024		98
Amortized Cost Basis by Origination Year 2023	487	205
Amortized Cost Basis by Origination Year 2022	580	603
Amortized Cost Basis by Origination Year 2021	86	353
Amortized Cost Basis by Origination Year 2020	143	20
Amortized Cost Basis by Origination Year, Prior to 2019	325	463
Revolving Loans	1
Revolving Loans Converted to Term	4,450	541
Total loans	$ 6,072	$ 2,283

Loans and the Allowance for _19

Loans and the Allowance for Credit Losses - Summary of Other Real Estate Owned and Repossessed Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Receivables [Abstract]
Other real estate owned	$ 1,219	$ 1,207
Repossessed assets	109	290
Total other real estate owned and repossessed assets	$ 1,328	$ 1,497

Investments In Limited Partne_3

Investments In Limited Partnerships - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) Partnership	Jun. 30, 2023 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Schedule of Investments [Line Items]
Unfunded equity commitments in other liabilities	$ 15,584,096		$ 15,584,096			$ 15,179,312
Partnerships losses and impairment	1,200	$ 1,100	$ 2,300	$ 2,100
Number of limited partnerships held | Partnership			3
Net Income (Loss)	28,916	44,880	$ 64,609	87,221
Equity Method Investments [Member]
Schedule of Investments [Line Items]
Income tax credits and adjustments						3,800
Equity Method Investments [Member] | Forecast [Member]
Schedule of Investments [Line Items]
Income tax credits and adjustments					$ 4,500
Limited Liability Company [Member]
Schedule of Investments [Line Items]
Amount invested in partnerships	2,900		2,900			3,000
Limited Liability Company [Member] | Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Schedule of Investments [Line Items]
Partnership income (loss) under equity method	12	$ (6)	(11)	$ 5
Variable Interest Entity, Not Primary Beneficiary [Member]
Schedule of Investments [Line Items]
Unfunded equity commitments in other liabilities	15,300		15,300			13,900
Variable Interest Entity, Not Primary Beneficiary [Member] | Other Assets [Member]
Schedule of Investments [Line Items]
Amount invested in partnerships	$ 35,600		$ 35,600			$ 31,900

Investments In Limited Partne_4

Investments In Limited Partnerships - Schedule Of Equity Commitments (Details) - Variable Interest Entity, Not Primary Beneficiary [Member] $ in Thousands	Jun. 30, 2024 USD ($)
Schedule of Investments [Line Items]
2024	$ 3,790
2025	5,085
2026	3,148
2027	950
2028	588
2029 and thereafter	1,726
Total	$ 15,287

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($) Derivative	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) Derivative	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) Derivative
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Collateral posted with market value on liability positions with credit risk-related contingent features	$ 47,200,000		$ 47,200,000		$ 26,000,000
Interest Rate Swaps and Caps [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of interest rate swaps | Derivative	267		267		236
Aggregate notional amount	$ 1,800,000,000		$ 1,800,000,000		$ 1,600,000,000
Income (loss) on derivative instrument not designated hedges	$ 1,800,000	$ 2,400,000	$ 2,500,000	$ 4,300,000
Risk Participation in Agreements [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of interest rate swaps | Derivative	22		22		19
Aggregate notional amount	$ 228,400,000		$ 228,400,000		$ 197,200,000
Risk Participation out Agreement [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of interest rate swaps | Derivative	8		8		5
Aggregate notional amount	$ 68,100,000		$ 68,100,000		$ 40,900,000
Other Contract [Member] | Forward TBA Contracts [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Aggregate notional amount	$ 51,000,000		$ 51,000,000		$ 27,000,000

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities - Summary of Fair Values of Derivative Instruments on Balance Sheets (Detail) - USD ($)	Jun. 30, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 81,205,000	$ 72,267,000
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets	Other Assets
Liability Derivatives	$ 81,443,000	$ 73,288,000
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities
Interest Rate Swaps and Caps [Member] | Loan Swaps [Member]
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	$ 1,829,685,000	$ 1,573,152,000
Asset Derivatives	81,205,000	72,183,000
Liability Derivatives	81,308,000	73,083,000
Interest Rate Lock Commitments [Member] | Other Contract [Member]
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	27,118,000	16,524,000
Asset Derivatives		84,000
Liability Derivatives	32,000
Forward TBA Contracts [Member] | Other Contract [Member]
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	51,000,000	27,000,000
Liability Derivatives	$ 103,000	$ 205,000

Derivatives and Hedging Activ_5

Derivatives and Hedging Activities - Summary of Effect of Derivative Instruments on Income Statement (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Derivatives, Fair Value [Line Items]
Total gain (loss) on derivative financial instruments	$ (34)	$ 498	$ 786	$ (543)
Interest Rate Swaps and Caps [Member]
Derivatives, Fair Value [Line Items]
Total gain (loss) on derivative financial instruments	$ 9	$ 176	$ 807	$ (863)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Net Swap Fee and Valuation Income	Net Swap Fee and Valuation Income	Net Swap Fee and Valuation Income	Net Swap Fee and Valuation Income
Interest Rate Lock Commitments [Member]
Derivatives, Fair Value [Line Items]
Total gain (loss) on derivative financial instruments	$ (90)	$ (315)	$ (116)	$ (128)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Non Interest Income Derived From Mortgage Banking Activities	Non Interest Income Derived From Mortgage Banking Activities	Non Interest Income Derived From Mortgage Banking Activities	Non Interest Income Derived From Mortgage Banking Activities
Forward TBA Contracts [Member]
Derivatives, Fair Value [Line Items]
Total gain (loss) on derivative financial instruments	$ 47	$ 637	$ 95	$ 448
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Non Interest Income Derived From Mortgage Banking Activities	Non Interest Income Derived From Mortgage Banking Activities	Non Interest Income Derived From Mortgage Banking Activities	Non Interest Income Derived From Mortgage Banking Activities

Benefit Plans - Defined Benefit

Benefit Plans - Defined Benefit Pension Plan (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Retirement Benefits [Abstract]
Service cost – benefits earned during year	$ 330	$ 354	$ 660	$ 704
Interest cost on projected benefit obligation	1,603	1,572	3,206	3,126
Expected return on plan assets	$ (2,599)	$ (2,781)	$ (5,198)	$ (5,531)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Employee Benefits	Employee Benefits	Employee Benefits	Employee Benefits
Amortization of prior service cost	$ (8)	$ (9)	$ (17)	$ (18)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Employee Benefits	Employee Benefits	Employee Benefits	Employee Benefits
Amortization of net loss	$ 21	$ 225	$ 42	$ 448
Net periodic pension income	$ (653)	$ (639)	$ (1,307)	$ (1,271)

Benefit Plans - Additional Info

Benefit Plans - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Retirement Benefits [Abstract]
Service cost	$ 330,000	$ 354,000	$ 660,000	$ 704,000
Periodic pension income			2,000,000	$ 2,000,000
Minimum required pension plan contribution	2,600,000		2,600,000
Available credit balance	$ 64,200,000		64,200,000
Expected voluntary contribution for the year 2024			$ 0

Fair Value Measurement - Schedu

Fair Value Measurement - Schedule of Fair Value of Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	$ 13,091	$ 12,320
Available-for-sale debt securities	2,102,123	2,194,329
Loans held for sale	25,433	16,354
Other real estate owned and repossessed assets	1,328	1,497
Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	13,091	12,320
Available-for-sale debt securities	2,102,123	2,194,329
Loans held for sale	25,433	16,354
Other assets - interest rate swaps	81,205	72,183
Total assets	2,221,852	2,295,186
Other liabilities - interest rate swaps	81,308	73,083
Total liabilities recurring fair value measurements	81,308	73,083
Nonrecurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent loans	18,876	18,273
Other real estate owned and repossessed assets	1,328	1,497
Total assets	20,204	19,770
U.S. Treasury [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	49,103
U.S. Treasury [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	49,103
U.S. Government Sponsored Entities and Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	199,258	208,366
U.S. Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	199,258	208,366
Residential Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	1,514,028	1,629,684
Residential Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	1,514,028	1,629,684
Commercial Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	256,190	268,307
Commercial Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	256,190	268,307
Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	71,756	76,125
Obligations of States and Political Subdivisions [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	71,756	76,125
Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	11,788	11,847
Corporate Debt Securities [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	11,788	11,847
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	13,091	12,320
Available-for-sale debt securities	49,103
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	13,091	12,320
Available-for-sale debt securities	49,103
Total assets	62,194	12,320
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	49,103
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	2,051,900	2,193,162
Loans held for sale	25,433	16,354
Other assets - interest rate swaps	81,205	72,183
Other liabilities - interest rate swaps	81,308	73,083
Significant Other Observable Inputs (Level 2) [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	2,051,900	2,193,162
Loans held for sale	25,433	16,354
Other assets - interest rate swaps	81,205	72,183
Total assets	2,158,538	2,281,699
Other liabilities - interest rate swaps	81,308	73,083
Total liabilities recurring fair value measurements	81,308	73,083
Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	199,258	208,366
Significant Other Observable Inputs (Level 2) [Member] | Residential Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	1,514,028	1,629,684
Significant Other Observable Inputs (Level 2) [Member] | Commercial Mortgage-Backed Securities and Collateralized Mortgage Obligations of Government Sponsored Entities and Agencies [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	256,190	268,307
Significant Other Observable Inputs (Level 2) [Member] | Obligations of States and Political Subdivisions [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	70,636	74,958
Significant Other Observable Inputs (Level 2) [Member] | Corporate Debt Securities [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	11,788	11,847
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	1,120	1,167
Significant Unobservable Inputs (Level 3) [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	1,120	1,167
Total assets	1,120	1,167
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent loans	18,876	18,273
Other real estate owned and repossessed assets	1,328	1,497
Total assets	20,204	19,770
Significant Unobservable Inputs (Level 3) [Member] | Obligations of States and Political Subdivisions [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	$ 1,120	$ 1,167

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair value transfer amount	$ 0	$ 0

Fair Value Measurement - Sche_2

Fair Value Measurement - Schedule of Assets Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Fair Value Inputs Asset Quantitative Information [Line Items]
Other real estate owned and repossessed assets	$ 1,328	$ 1,497
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans	18,876	18,273
Other real estate owned and repossessed assets	1,328	1,497
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans	18,876	18,273
Other real estate owned and repossessed assets	$ 1,328	$ 1,497
Collateral dependent loans, Appraisal adjustments	0%	0%
Collateral dependent loans, Liquidation expenses	(8.00%)
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans, Liquidation expenses		0%
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans, Liquidation expenses		(8.00%)
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans, Appraisal adjustments	0%	0%
Collateral dependent loans, Liquidation expenses	(8.00%)	(7.80%)

Fair Value Measurement - Estima

Fair Value Measurement - Estimates Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Financial Assets
Cash and due from banks	$ 486,789	$ 595,383
Equity securities	13,091	12,320
Available-for-sale debt securities	2,102,123	2,194,329
Net held-to-maturity debt securities	1,179,684	1,199,527
Net loans	12,121,002	11,507,786
Loans held for sale	25,433	16,354
Accrued interest receivable	79,759	77,435
Financial Liabilities
Deposits	13,432,373	13,168,704
Federal Home Loan Bank borrowings	1,475,000	1,350,000
Other borrowings	105,757	105,893
Subordinated debt and junior subordinated debt	279,193	279,078
Accrued interest payable	15,393	11,121
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial Assets
Cash and due from banks	486,789	595,383
Equity securities	13,091	12,320
Available-for-sale debt securities	49,103
Accrued interest receivable	79,759	77,435
Financial Liabilities
Deposits	12,044,435	11,937,002
Other borrowings	101,959	103,057
Accrued interest payable	15,393	11,121
Significant Other Observable Inputs (Level 2) [Member]
Financial Assets
Available-for-sale debt securities	2,051,900	2,193,162
Net held-to-maturity debt securities	1,028,202	1,068,896
Loans held for sale	25,433	16,354
Other assets - interest rate derivatives	81,205	72,183
Financial Liabilities
Deposits	1,367,316	1,209,819
Federal Home Loan Bank borrowings	1,473,741	1,349,217
Subordinated debt and junior subordinated debt	228,588	240,898
Other liabilities - interest rate derivatives	81,308	73,083
Significant Unobservable Inputs (Level 3) [Member]
Financial Assets
Available-for-sale debt securities	1,120	1,167
Net held-to-maturity debt securities	230	263
Net loans	11,636,263	11,134,250
Carrying Amount [Member]
Financial Assets
Cash and due from banks	486,789	595,383
Equity securities	13,091	12,320
Available-for-sale debt securities	2,102,123	2,194,329
Net held-to-maturity debt securities	1,179,521	1,199,335
Net loans	12,121,002	11,507,786
Loans held for sale	25,433	16,354
Other assets - interest rate derivatives	81,205	72,183
Accrued interest receivable	79,759	77,435
Financial Liabilities
Deposits	13,432,373	13,168,704
Federal Home Loan Bank borrowings	1,475,000	1,350,000
Other borrowings	105,757	105,893
Subordinated debt and junior subordinated debt	279,193	279,078
Other liabilities - interest rate derivatives	81,308	73,083
Accrued interest payable	15,393	11,121
Fair Value Estimate [Member]
Financial Assets
Cash and due from banks	486,789	595,383
Equity securities	13,091	12,320
Available-for-sale debt securities	2,102,123	2,194,329
Net held-to-maturity debt securities	1,028,432	1,069,159
Net loans	11,636,263	11,134,250
Loans held for sale	25,433	16,354
Other assets - interest rate derivatives	81,205	72,183
Accrued interest receivable	79,759	77,435
Financial Liabilities
Deposits	13,411,751	13,146,821
Federal Home Loan Bank borrowings	1,473,741	1,349,217
Other borrowings	101,959	103,057
Subordinated debt and junior subordinated debt	228,588	240,898
Other liabilities - interest rate derivatives	81,308	73,083
Accrued interest payable	$ 15,393	$ 11,121

Revenue Recognition - Summary o

Revenue Recognition - Summary of Revenue Recognition (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Schedule Of Revenue Recognition [Line Items]
Total net securities brokerage revenue	$ 2,601	$ 2,523	$ 5,149	$ 5,098
Digital banking income	5,040	5,010	9,745	9,615
Net swap fee and valuation income	1,776	2,612	3,339	3,411
Mortgage banking income	1,069	601	1,762	1,027
Net gain on other real estate owned and other assets	34	871	188	1,104
Total Service Charges on Deposits [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	7,111	6,232	13,895	12,401
Trust Account fees [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	5,305	5,009	$ 11,405	10,614
Point of revenue recognition			Over time
WesMark Fees [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	1,998	1,909	$ 3,980	3,798
Point of revenue recognition			Over time
Total Trust Fees [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	7,303	6,918	$ 15,385	14,412
Commercial Banking Fees [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	1,297	650	$ 2,485	1,259
Point of revenue recognition			Over time
Personal Service Charges [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	5,814	5,582	$ 11,410	11,142
Point of revenue recognition			At a point in time and over time
Annuity Commissions [Member]
Schedule Of Revenue Recognition [Line Items]
Total net securities brokerage revenue	1,978	1,840	$ 3,950	3,885
Point of revenue recognition			At a point in time
Equity And Debt Security Trades [Member]
Schedule Of Revenue Recognition [Line Items]
Total net securities brokerage revenue	70	149	$ 150	149
Point of revenue recognition			At a point in time
Managed Money [Member]
Schedule Of Revenue Recognition [Line Items]
Total net securities brokerage revenue	272	284	$ 526	567
Point of revenue recognition			Over time
Trail Commissions [Member]
Schedule Of Revenue Recognition [Line Items]
Total net securities brokerage revenue	281	250	$ 523	497
Point of revenue recognition			Over time
Payment Processing Fees [Member]
Schedule Of Revenue Recognition [Line Items]
Payment Processing Fees	$ 906	$ 951	$ 1,734	$ 1,822
Point of revenue recognition			At a point in time and over time
Digital Banking Income [Member]
Schedule Of Revenue Recognition [Line Items]
Point of revenue recognition			At a point in time
Net Swap Fee and Valuation Income [Member]
Schedule Of Revenue Recognition [Line Items]
Point of revenue recognition			At a point in time
Mortgage [Member]
Schedule Of Revenue Recognition [Line Items]
Point of revenue recognition			At a point in time
Other Real Estate Owned and Other Assets [Member]
Schedule Of Revenue Recognition [Line Items]
Point of revenue recognition			At a point in time and over time

Revenue Recognition - Summary_2

Revenue Recognition - Summary of Revenue Recognition (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net Swap Fee and Valuation Income [Member]
Schedule Of Revenue Recognition [Line Items]
Gain (loss) on change in fair value of underlying swaps not within the scope of ASC 606	$ 0.2	$ 0.8	$ (0.9)

Comprehensive Income_(Loss) - C

Comprehensive Income/(Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 2,538,362	$ 2,475,457	$ 2,533,062	$ 2,426,662
Amounts reclassified from accumulated other comprehensive income/(loss)	(126)	81	(237)	270
Total other comprehensive loss	(286)	(30,228)	(8,515)	(2,211)
Ending Balance	2,544,279	2,464,998	2,544,279	2,464,998
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			6,515	(535)
Other comprehensive loss before reclassifications			0	0
Amounts reclassified from accumulated other comprehensive income/(loss)	(77)	75	(130)	150
Total other comprehensive loss			(130)	150
Ending Balance	6,385	(385)	6,385	(385)
Accumulated Unrealized Gains (Losses) on Debt Securities Available for Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(233,208)	(261,881)
Other comprehensive loss before reclassifications			(8,278)	(2,481)
Amounts reclassified from accumulated other comprehensive income/(loss)	(49)	6	(107)	120
Total other comprehensive loss			(8,385)	(2,361)
Ending Balance	(241,593)	(264,242)	(241,593)	(264,242)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(234,922)	(234,399)	(226,693)	(262,416)
Other comprehensive loss before reclassifications			(8,278)	(2,481)
Amounts reclassified from accumulated other comprehensive income/(loss)			(237)	270
Total other comprehensive loss	(286)	(30,228)	(8,515)	(2,211)
Ending Balance	$ (235,208)	$ (264,627)	$ (235,208)	$ (264,627)

Comprehensive Income_(Loss) -_2

Comprehensive Income/(Loss) - Components of Accumulated Other Comprehensive Income (Parenthetical) (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Percentage of Federal and State income tax rate	24%	24%	24%	24%

Comprehensive Income_(Loss) - S

Comprehensive Income/(Loss) - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income/(Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities losses (gains) reclassified into earnings	$ (135)	$ (205)	$ (672)	$ (350)
Provision for income taxes	6,099	9,063	13,795	19,005
Employee benefits (Non-interest expense)	10,579	11,511	22,763	23,570
Net effect on accumulated other comprehensive income/(loss) for the period	(126)	81	(237)	270
Accumulated Unrealized Gains (Losses) on Debt Securities Available for Sale [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net effect on accumulated other comprehensive income/(loss) for the period	(49)	6	(107)	120
Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net effect on accumulated other comprehensive income/(loss) for the period	(77)	75	(130)	150
Amounts Reclassified From Accumulated Other Comprehensive Income/(Loss) [Member] | Accumulated Unrealized Gains (Losses) on Debt Securities Available for Sale [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities losses (gains) reclassified into earnings	12	8	12	159
Provision for income taxes	(61)	(2)	(119)	(39)
Amounts Reclassified From Accumulated Other Comprehensive Income/(Loss) [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Provision for income taxes	24	(24)	72	(48)
Employee benefits (Non-interest expense)	$ (101)	$ 99	$ (202)	$ 198

Comprehensive Income_(Loss) -_3

Comprehensive Income/(Loss) - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income/(Loss) (Parenthetical) (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Percentage of Federal and State income tax rate	24%	24%	24%	24%

Commitments and Contingent Li_3

Commitments and Contingent Liabilities - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Allowance for credit losses associated with loan commitments	$ 9.2	$ 8.6
Liability associated with letters of credit	$ 0.2	$ 0.2

Commitments and Contingent Li_4

Commitments and Contingent Liabilities - Commitments to Extend Credit, Guarantees and Various Letters of Credit Outstanding (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Lines of credit	$ 4,146,287	$ 4,016,658
Loans approved but not closed	402,020	275,954
Overdraft limits	396,034	391,598
Letters of credit	43,591	38,929
Contingent obligations and other guarantees	$ 9,394	$ 15,037

Business Segments - Additional

Business Segments - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2024 USD ($) Segment	Jun. 30, 2023 USD ($)
Segment Reporting Information [Line Items]
Operating segments | Segment	2
Trust and Investment Services [Member]
Segment Reporting Information [Line Items]
Market value of assets managed or held in custody by trust and investment services segment	$ 5,600	$ 5,100
Total non-fiduciary assets of the trust and investment services segment	3.3	3.4
Trust and Investment Services [Member] | Customer-Related Intangible Assets [Member]
Segment Reporting Information [Line Items]
Total non-fiduciary assets of the trust and investment services segment	$ 0.8	$ 1

Business Segments - Financial I

Business Segments - Financial Information by Business Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Interest and dividend income	$ 202,993	$ 176,055	$ 398,327	$ 336,609
Interest expense	86,400	54,488	167,767	90,711
NET INTEREST INCOME	116,593	121,567	230,560	245,898
Provision for credit losses	10,541	3,028	14,555	6,605
Net interest income after provision for credit losses	106,052	118,539	216,005	239,293
Non-interest income	31,355	31,841	61,984	59,493
Non-interest expense	102,392	96,437	199,585	192,560
Income before provision for income taxes	35,015	53,943	78,404	106,226
Provision for income taxes	6,099	9,063	13,795	19,005
Net income	28,916	44,880	64,609	87,221
Preferred stock dividends	2,531	2,531	5,063	5,063
Net income available to common shareholders	26,385	42,349	59,546	82,158
Community Banking [Member]
Segment Reporting Information [Line Items]
Interest and dividend income	202,993	176,055	398,327	336,609
Interest expense	86,400	54,488	167,767	90,711
NET INTEREST INCOME	116,593	121,567	230,560	245,898
Provision for credit losses	10,541	3,028	14,555	6,605
Net interest income after provision for credit losses	106,052	118,539	216,005	239,293
Non-interest income	24,052	24,923	46,599	45,081
Non-interest expense	97,403	91,818	189,373	183,433
Income before provision for income taxes	32,701	51,644	73,231	100,941
Provision for income taxes	5,613	8,580	12,709	17,895
Net income	27,088	43,064	60,522	83,046
Preferred stock dividends	2,531	2,531	5,063	5,063
Net income available to common shareholders	24,557	40,533	55,459	77,983
Trust and Investment Services [Member]
Segment Reporting Information [Line Items]
Non-interest income	7,303	6,918	15,385	14,412
Non-interest expense	4,989	4,619	10,212	9,127
Income before provision for income taxes	2,314	2,299	5,173	5,285
Provision for income taxes	486	483	1,086	1,110
Net income	1,828	1,816	4,087	4,175
Net income available to common shareholders	$ 1,828	$ 1,816	$ 4,087	$ 4,175

Subsequent Events - Additional

Subsequent Events - Additional Information (Details) - Subsequent Event [Member] $ / shares in Units, $ in Millions	Jul. 25, 2024 USD ($) $ / shares shares
Securities Purchase Agreement [Member] | Private Placement [Member]
Subsequent Event [Line Items]
Issuance of common stock | shares	7,272,728
Sale of shares price per share | $ / shares	$ 27.5
Proceeds from issuance of private placement | $	$ 200
Premier Financial Corporation [Member] | Merger Agreement [Member]
Subsequent Event [Line Items]
Ratio for exchange of common stock for each share	0.8
Common dividends declared, per share | $ / shares	$ 0.31
Payment of termination fee | $	$ 37