WesBanco (WSBC) 10-Q 3 Aug 23 2023 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2023	Jul. 26, 2023
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2023
Document Fiscal Year Focus	2023
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		59,355,062
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, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks, including interest bearing amounts of $384,261 and $242,229, respectively	$ 562,318	$ 408,411
Securities:
Equity securities, at fair value	11,948	11,506
Available-for-sale debt securities, at fair value	2,329,222	2,529,140
Held-to-maturity debt securities (fair values of $1,072,229 and $1,084,390, respectively)	1,224,470	1,248,629
Allowance for credit losses, held-to-maturity debt securities	(193)	(220)
Net held-to-maturity debt securities	1,224,277	1,248,409
Total securities	3,565,447	3,789,055
Loans held for sale	28,970	8,249
Portfolio loans, net of unearned income	11,129,964	10,702,728
Allowance for credit losses - loans	(120,166)	(117,790)
Net portfolio loans	11,009,798	10,584,938
Premises and equipment, net	219,934	220,892
Accrued interest receivable	69,773	68,522
Goodwill and other intangible assets, net	1,136,773	1,141,355
Bank-owned life insurance	355,204	352,361
Other assets	408,737	358,122
Total Assets	17,356,954	16,931,905
Deposits:
Non-interest bearing demand	4,286,235	4,700,438
Interest bearing demand	3,273,745	3,119,807
Money market	1,685,667	1,684,023
Savings deposits	2,655,680	2,741,004
Certificates of deposit	960,107	885,818
Total deposits	12,861,434	13,131,090
Federal Home Loan Bank borrowings	1,380,000	705,000
Other short-term borrowings	101,286	135,069
Subordinated debt and junior subordinated debt	281,854	281,404
Total borrowings	1,763,140	1,121,473
Accrued interest payable	8,869	4,593
Other liabilities	258,513	248,087
Total Liabilities	14,891,956	14,505,243
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, 2023 and December 31, 2022, respectively	144,484	144,484
Common stock, $2.0833 par value; 100,000,000 shares authorized; 68,081,306 shares issued; 59,355,062 and 59,198,963 shares outstanding at June 30, 2023 and December 31, 2022, respectively	141,834	141,834
Capital surplus	1,630,963	1,635,877
Retained earnings	1,118,135	1,077,675
Treasury stock (8,726,244 and 8,882,343 shares - at cost, respectively)	(303,770)	(308,964)
Accumulated other comprehensive loss	(264,627)	(262,416)
Deferred benefits for directors	(2,021)	(1,828)
Total Shareholders' Equity	2,464,998	2,426,662
Total Liabilities and Shareholders' Equity	$ 17,356,954	$ 16,931,905

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Interest bearing deposits, banks	$ 384,261,000	$ 242,229,000
Held-to-maturity securities, fair values	$ 1,072,229,000	$ 1,084,390,000
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	59,355,062	59,198,963
Treasury stock, shares	8,726,244	8,882,343

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
INTEREST AND DIVIDEND INCOME
Loans, including fees	$ 145,741	$ 96,412	$ 279,147	$ 189,532
Interest and dividends on securities:
Taxable	18,483	15,825	37,569	29,937
Tax-exempt	4,723	4,706	9,513	9,049
Total interest and dividends on securities	23,206	20,531	47,082	38,986
Other interest income	7,108	1,504	10,380	2,103
Total interest and dividend income	176,055	118,447	336,609	230,621
INTEREST EXPENSE
Interest bearing demand deposits	17,203	1,153	28,309	1,965
Money market deposits	7,220	383	11,472	704
Savings deposits	5,860	330	9,860	595
Certificates of deposit	2,906	1,116	4,109	2,389
Total interest expense on deposits	33,189	2,982	53,750	5,653
Federal Home Loan Bank borrowings	16,713	411	28,013	986
Other short-term borrowings	492	48	909	96
Subordinated debt and junior subordinated debt	4,094	2,778	8,039	3,948
Total interest expense	54,488	6,219	90,711	10,683
NET INTEREST INCOME	121,567	112,228	245,898	219,938
Provision for credit losses	3,028	(812)	6,605	(4,250)
Net interest income after provision for credit losses	118,539	113,040	239,293	224,188
NON-INTEREST INCOME
Trust fees	6,918	6,527	14,412	14,362
Service charges on deposits	6,232	6,487	12,401	12,577
Electronic banking fees	5,010	5,154	9,615	10,499
Net securities brokerage revenue	2,523	2,258	5,098	4,478
Bank-owned life insurance	3,189	2,384	5,149	6,264
Mortgage banking income	601	1,328	1,027	3,251
Net securities gains (losses)	205	(1,183)	350	(1,832)
Net gain (loss) on other real estate owned and other assets	871	(1,302)	1,104	(2,108)
Other income	6,292	5,330	10,337	9,874
Total non-interest income	31,841	26,983	59,493	57,365
NON-INTEREST EXPENSE
Salaries and wages	44,471	41,213	86,422	80,150
Employee benefits	11,511	8,722	23,570	17,880
Net occupancy	6,132	6,119	12,775	13,354
Equipment and software	8,823	7,702	17,885	15,713
Marketing	2,763	2,749	5,088	5,170
FDIC insurance	2,871	1,937	5,755	3,459
Amortization of intangible assets	2,282	2,579	4,583	5,178
Restructuring and merger-related expense	35	52	3,188	1,646
Other operating expenses	17,549	15,946	33,294	32,019
Total non-interest expense	96,437	87,019	192,560	174,569
Income before provision for income taxes	53,943	53,004	106,226	106,984
Provision for income taxes	9,063	10,256	19,005	20,114
Net income	44,880	42,748	87,221	86,870
Preferred stock dividends	2,531	2,531	5,063	5,063
Net income available to common shareholders	$ 42,349	$ 40,217	$ 82,158	$ 81,807
EARNINGS PER COMMON SHARE
Basic	$ 0.71	$ 0.67	$ 1.39	$ 1.35
Diluted	$ 0.71	$ 0.67	$ 1.38	$ 1.34
AVERAGE COMMON SHARES OUTSTANDING
Basic	59,263,949	60,036,103	59,240,958	60,736,858
Diluted	59,385,847	60,185,207	59,389,314	60,899,270
DIVIDENDS DECLARED PER COMMON SHARE	$ 0.35	$ 0.34	$ 0.7	$ 0.68

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 44,880	$ 42,748	$ 87,221	$ 86,870
Debt securities available-for-sale:
Net change in unrealized losses on debt securities available-for-sale	(40,018)	(85,314)	(3,408)	(225,167)
Related income tax effect	9,709	20,503	927	54,109
Net securities losses reclassified into earnings	8	9	159	10
Related income tax effect	(2)	(2)	(39)	(2)
Net effect on other comprehensive income for the period	(30,303)	(64,804)	(2,361)	(171,050)
Defined benefit plans:
Amortization of net loss and prior service costs	99	73	198	144
Related income tax effect	(24)	(18)	(48)	(35)
Net effect on other comprehensive income for the period	75	55	150	109
Total other comprehensive loss	(30,228)	(64,749)	(2,211)	(170,941)
Comprehensive income (loss)	$ 14,652	$ (22,001)	$ 85,010	$ (84,071)

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, 2021	$ 2,693,166	$ 144,484	$ 141,834	$ 1,635,642	$ 977,765	$ (199,759)	$ (5,120)	$ (1,680)
Beginning Balance, shares at Dec. 31, 2021			62,307,245
Net income	86,870				86,870
Other comprehensive loss	(170,941)						(170,941)
Comprehensive income (loss)	(84,071)
Common dividends declared	(40,726)				(40,726)
Preferred dividends declared	(5,063)				(5,063)
Stock issued for dividend reinvestment					(637)	637
Stock issued for dividend reinvestment, shares			18,646
Treasury shares acquired	(99,420)					(99,420)
Treasury shares acquired, shares			(2,841,043)
Stock options exercised	1,378			(306)		1,684
Stock options exercised, shares			49,734
Restricted stock granted				(5,521)		5,521
Restricted stock granted, shares			164,206
Stock compensation expense	2,792			2,792
Deferred benefits for directors- net	(105)			10				(115)
Ending Balance at Jun. 30, 2022	2,467,951	144,484	$ 141,834	1,632,617	1,018,209	(291,337)	(176,061)	(1,795)
Ending Balance, shares at Jun. 30, 2022			59,698,788
Beginning Balance at Mar. 31, 2022	2,547,316	144,484	$ 141,834	1,636,705	998,315	(261,012)	(111,312)	(1,698)
Beginning Balance, shares at Mar. 31, 2022			60,613,414
Net income	42,748				42,748
Other comprehensive loss	(64,749)						(64,749)
Comprehensive income (loss)	(22,001)
Common dividends declared	(20,191)				(20,191)
Preferred dividends declared	(2,531)				(2,531)
Stock issued for dividend reinvestment					(132)	132
Stock issued for dividend reinvestment, shares			4,115
Treasury shares acquired	(37,096)					(37,096)
Treasury shares acquired, shares			(1,116,472)
Stock options exercised	1,004			(114)		1,118
Stock options exercised, shares			33,525
Restricted stock granted				(5,521)		5,521
Restricted stock granted, shares			164,206
Stock compensation expense	1,551			1,551
Deferred benefits for directors- net	(101)			(4)				(97)
Ending Balance at Jun. 30, 2022	2,467,951	144,484	$ 141,834	1,632,617	1,018,209	(291,337)	(176,061)	(1,795)
Ending Balance, shares at Jun. 30, 2022			59,698,788
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 (loss)	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 (loss)	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

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Stockholders' Equity [Abstract]
Common dividends declared, per share	$ 0.35	$ 0.34	$ 0.7	$ 0.68
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, 2023	Jun. 30, 2022
OPERATING ACTIVITIES
NET CASH PROVIDED BY OPERATING ACTIVITIES	$ 57,941	$ 85,795
INVESTING ACTIVITIES
Net increase in loans held for investment	(427,264)	(465,440)
Available-for-sale debt securities:
Proceeds from sales	28,317	0
Proceeds from maturities, prepayments and calls	167,849	344,948
Purchases of securities	0	(446,268)
Held-to-maturity debt securities:
Proceeds from maturities, prepayments and calls	22,929	50,295
Purchases of securities	(2,500)	(328,238)
Proceeds from bank owned life insurance	2,306	7,816
Purchases of premises and equipment – net	(16,916)	(2,807)
Net cash used in investing activities	(225,279)	(839,694)
FINANCING ACTIVITIES
(Decrease) increase in deposits	(269,018)	4,596
Proceeds from Federal Home Loan Bank borrowings	1,380,000	0
Repayment of Federal Home Loan Bank borrowings	(705,000)	(61,318)
(Decrease) increase in other short-term borrowings	(33,783)	6,071
Principal repayments of finance lease obligations	(1,148)	(214)
Issuance of subordinated debt, net of issuance costs	0	147,655
Dividends paid to common shareholders	(41,120)	(41,135)
Dividends paid to preferred shareholders	(5,063)	(5,063)
Treasury shares purchased - net	(3,623)	(98,042)
Net cash provided by (used in) financing activities	321,245	(47,450)
Net increase (decrease) in cash, cash equivalents and restricted cash	153,907	(801,349)
Cash, cash equivalents and restricted cash at beginning of the period	408,411	1,251,358
Cash, cash equivalents and restricted cash at end of the period	562,318	450,009
SUPPLEMENTAL DISCLOSURES
Interest paid on deposits and other borrowings	86,623	10,484
Income taxes paid	24,240	15,190
Transfers of loans to other real estate owned	$ 147	$ 87

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ 44,880	$ 42,748	$ 87,221	$ 86,870

Insider Trading Arrangements

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

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2023
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, 2022. 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 2022 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. Modifications for Borrowers Experiencing Financial Difficulty (“MBEFD”) — A modification of a loan for borrowers experiencing financial difficulty is applicable when the loan modification results in a direct change in the timing or amount of contractual cash flows. The most common modifications provided to borrowers experiencing financial difficulty are expected to occur in the form of principal forgiveness, interest rate reductions, other-than-insignificant-payment delays, or term extensions under ASC 310-10-50-39. Upon Wesbanco's adoption of Accounting Standards Update (“ASU”) 2022-02 on January 1, 2023, Troubled Debt Restructuring ("TDR") accounting was prospectively discontinued and economic concessions for modifications occurring on or after the adoption date are no longer measured. This accounting also results in the elimination of any existing economic concession related to a loan that was previously designated as a TDR if such loan is restructured on or after January 1, 2023. Due to the elimination of economic concessions under ASU 2022-02, the standard may result in modified loans being subject to the new disclosures that would have not been considered concessions and not treated as TDRs. When determining whether a debtor is experiencing financial difficulties, consideration is given to any known default on any of its debt or whether it is probable that the debtor would be in payment default in the foreseeable future without the modification. Other indicators of financial difficulty include whether the debtor has declared or is in the process of declaring bankruptcy, the debtor’s ability to continue as a going concern, or the debtor’s projected cash flow to service its debt (including principal & interest) in accordance with the contractual terms for the foreseeable future, without a modification. If the payment of principal at original maturity is primarily dependent on the value of collateral, the current value of that collateral is considered in determining whether the principal will be paid. The modification of a loan does not increase the allowance or provision for credit losses unless the loan is extended, or the loans are commercial loans that are individually evaluated for impairment, in which case a specific reserve is established pursuant to GAAP. Portfolio segment loss history is the primary factor for establishing the allowance for residential real estate, home equity and consumer MBEFDs. Non-accrual loans that are restructured remain on non-accrual, but may move to accrual status after they have performed according to the restructured terms for a period of time. MBEFDs on accrual status generally remain on accrual as long as they continue to perform in accordance with their modified terms. MBEFDs may also be placed on non-accrual if they do not perform in accordance with the restructured terms. Loans may be removed from MBEFD status after they have performed according to the renegotiated terms for a period of time. Recent accounting pronouncements— The Financial Accounting Standards Board (“FASB”) issued Accounting Standards Updates (“ASU”) as noted below. 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 are effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. The adoption of this pronouncement is not expected to 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 are effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. 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 not expected to 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 is effective for fiscal years beginning after December 15, 2023. The adoption of this full pronouncement is not expected to 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 are effective for fiscal years beginning after December 15, 2023, and interim periods within those fiscal years. Wesbanco is currently assessing the impact of ASU 2022-03 on its Consolidated Financial Statements. ASU 2022-02 Financial Instruments - Credit Losses (Topic 326) In March 2022, the FASB issued ASU 2022-02, "Financial Instruments - Credit Losses (Topic 326)." The amendments in this ASU eliminate the accounting guidance for TDRs by creditors in Subtopic 310-40, "Receivables - Troubled Debt Restructurings by Creditors," while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. Specifically, rather than applying the recognition and measurement guidance for TDRs, an entity must apply the loan refinancing and restructuring guidance in paragraphs 310-20-35-9 through 35-11 to determine whether a modification results in a new loan or a continuation of an existing loan. In addition, for public business entities, the amendments in this Update require that an entity disclose current-period gross writeoffs by year of origination for financing receivables and net investments in leases within the scope of Subtopic 326-20, "Financial Instruments - Credit Losses - Measured at Amortized Cost." For Wesbanco, this update was effective beginning on January 1, 2023 . The adoption of this pronouncement did not have a material impact on the Consolidated Financial Statements. For the additional disclosure requirements in this ASU, please refer to the MBEFD policy above and Footnote 4, "Loans and the Allowance for Credit Losses." ASU 2020-04, ASU 2021-01 and ASU 2022-06 Reference Rate Reform (Topic 848) In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform (Topic 848).” This ASU provided temporary, optional guidance to ease the potential burden in accounting for, or recognizing the effects of, the transition away from the London Interbank Offered Rate ("LIBOR") or other reference rate expected to be discontinued on financial reporting. The ASU also provides optional expedients for contract modifications that replace a reference rate affected by reference rate reform. The guidance is effective as of March 12, 2020 through December 31, 2022, and can be adopted at any time during this period. In January 2021, the FASB issued ASU 2021-01, “Reference Rate Reform (Topic 848): Scope.” This ASU refines the scope of Topic 848 and addresses questions about whether Topic 848 can be applied to derivative instruments that do not reference a rate that is expected to be discontinued, but that use an interest rate for margining, discounting or contract price alignment that is expected to be modified as a result of reference rate reform. ASU 2021-01 is effective upon issuance through December 31, 2024, and can be adopted at any time during this period. Wesbanco has not offered LIBOR for any new contracts after December 31, 2021. Wesbanco has chosen the One Month Term Secured Overnight Financing Rate ("1M Term SOFR") as its alternative replacement rate for LIBOR on both back-to-back swaps and on one-month variable loans. A transition plan was implemented in 2021 to identify and modify Wesbanco's loans and other financial instruments with attributes that are either directly or indirectly influenced by LIBOR. In December 2022, the FASB issued ASU 2022-06, “Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848.” In the Update, the Board decided to defer the sunset date of Topic 848 to December 31, 2024, to permit entities to apply the guidance in Topic 848 through the expected cessation date of USD LIBOR. In the Board’s view, that time frame would have been sufficient to provide flexibility for additional unforeseen changes to the timeline of USD LIBOR cessation and to accommodate global interbank offered rate (IBOR) transition. The update did not have a material impact on Wesbanco’s Consolidated Financial Statements.

Earnings Per Common Share

Earnings Per Common Share	6 Months Ended
	Jun. 30, 2023
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) 2023 2022 2023 2022 Numerator for both basic and diluted earnings per common share: Net income available to common shareholders $ 42,349 $ 40,217 $ 82,158 $ 81,807 Denominator: Total average basic common shares outstanding 59,263,949 60,036,103 59,240,958 60,736,858 Effect of dilutive stock options and other stock compensation 121,898 149,104 148,356 162,412 Total diluted average common shares outstanding 59,385,847 60,185,207 59,389,314 60,899,270 Earnings per common share - basic $ 0.71 $ 0.67 $ 1.39 $ 1.35 Earnings per common share - diluted $ 0.71 $ 0.67 $ 1.38 $ 1.34 As of June 30, 2023 and 2022, 603,767 and 524,211 options to purchase shares were not included in the diluted share computation for the three and six months ended June 30, 2023 and 2022, 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, 2023, an aggregate of 37,296 contingently issuable shares were estimated to be awarded under the 2022 and 2021 total shareholder return ("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. As of June 30, 2022 , 34,656 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. As of June 30, 2022, the shares related to the 2020 TSR plan were not included in the calculation because they had not met performance measures and the effect would be antidilutive. In addition, performance-based restricted stock ("PBRS") compensation totaling 68,767 and 62,314 shares were estimated to be awarded as of June 30, 2023 and June 30, 2022 , respectively.

Securities

Securities	6 Months Ended
	Jun. 30, 2023
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, 2023 December 31, 2022 (unaudited, in thousands) Amortized Gross Gross Fair Amortized Gross Gross Fair Available-for-sale debt securities U.S. Government sponsored entities and agencies $ 246,526 $ — $ ( 34,575 ) $ 211,951 $ 259,418 $ 2 $ ( 33,450 ) $ 225,970 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 2,023,958 17 ( 302,088 ) 1,721,887 2,144,015 25 ( 297,987 ) 1,846,053 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 313,521 — ( 8,279 ) 305,242 359,811 — ( 10,080 ) 349,731 Obligations of states and political subdivisions 82,146 113 ( 3,828 ) 78,431 96,081 244 ( 4,097 ) 92,228 Corporate debt securities 11,956 — ( 245 ) 11,711 15,451 — ( 293 ) 15,158 Total available-for-sale debt securities $ 2,678,107 $ 130 $ ( 349,015 ) $ 2,329,222 $ 2,874,776 $ 271 $ ( 345,907 ) $ 2,529,140 Held-to-maturity debt securities U.S. Government sponsored entities and agencies $ 3,887 $ — $ ( 404 ) $ 3,483 $ 4,357 $ — $ ( 416 ) $ 3,941 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 42,371 — ( 3,796 ) 38,575 45,909 — ( 3,809 ) 42,100 Obligations of states and political subdivisions 1,157,889 354 ( 147,762 ) 1,010,481 1,177,986 577 ( 159,975 ) 1,018,588 Corporate debt securities 20,323 — ( 633 ) 19,690 20,377 — ( 616 ) 19,761 Total held-to-maturity debt securities (1) $ 1,224,470 $ 354 $ ( 152,595 ) $ 1,072,229 $ 1,248,629 $ 577 $ ( 164,816 ) $ 1,084,390 Total debt securities $ 3,902,577 $ 484 $ ( 501,610 ) $ 3,401,451 $ 4,123,405 $ 848 $ ( 510,723 ) $ 3,613,530 (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, 2023 and December 31, 2022 , respectively. At June 30, 2023 and December 31, 2022 , 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 $ 9.4 million 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 $ 11.9 million and $ 11.5 million at June 30, 2023 and December 31, 2022, 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, 2023. 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 $ 26,813 $ 26,470 After 1 year through 5 years 130,304 125,997 After 5 years through 10 years 395,725 374,036 After 10 years 2,125,265 1,802,719 Total available-for-sale debt securities $ 2,678,107 $ 2,329,222 Held-to-maturity debt securities Within one year $ 18,112 $ 18,003 After 1 year through 5 years 112,213 110,347 After 5 years through 10 years 411,700 383,357 After 10 years 682,445 560,522 Total held-to-maturity debt securities $ 1,224,470 $ 1,072,229 Total debt securities $ 3,902,577 $ 3,401,451 Securities with an aggregate fair value of $ 1.9 billion and $ 2.1 billion at June 30, 2023 and December 31, 2022, 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 and 2022 totaled $ 28.3 million and $ 0 million, respectively. Net unrealized losses on available-for-sale securities included in accumulated other comprehensive income, net of tax, as of June 30, 2023 and December 31, 2022 were $ 264.2 million and $ 261.8 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, 2023 and 2022, respectively. All gains and losses presented in the table below are included in the net securities gains (losses) line item of the 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) 2023 2022 2023 2022 Debt securities: Gross realized gains $ 2 $ 107 $ 65 $ 138 Gross realized losses ( 9 ) ( 9 ) ( 206 ) ( 11 ) Net (losses) gains on debt securities ( 7 ) 98 ( 141 ) 127 Equity securities: Net unrealized gains (losses) recognized on securities still held 212 ( 1,281 ) 491 ( 1,959 ) Net securities gains (losses) $ 205 $ ( 1,183 ) $ 350 $ ( 1,832 ) 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 income statement in the provision for credit losses. Accrued interest receivable on held-to-maturity securities, which was $ 9.1 million and $ 9.5 million as of June 30, 2023 and December 31, 2022 , 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, 2023 and 2022: Allowance for Credit Losses By Category For the Six Months Ended June 30, 2023 and 2022 Residential mortgage -backed securities and collateralized mortgage obligations Obligations of U.S. Government of government states and Corporate sponsored sponsored entities political debt (unaudited, in thousands) entities and agencies and agencies subdivisions Securities Total 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 . Balance at December 31, 2021 $ — $ — $ 174 $ 94 $ 268 Current period provision (1) — — 8 ( 11 ) ( 3 ) Write-offs — — — — — Recoveries — — — — — Balance at June 30, 2022 $ — $ — $ 182 $ 83 $ 265 (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 Footnote 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, 2023 and December 31, 2022, respectively: June 30, 2023 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 $ 21,031 $ ( 1,455 ) 14 $ 190,885 $ ( 33,120 ) 31 $ 211,916 $ ( 34,575 ) 45 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 142,697 ( 9,003 ) 66 1,577,076 ( 293,085 ) 414 1,719,773 ( 302,088 ) 480 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 26,808 ( 373 ) 4 278,434 ( 7,906 ) 63 305,242 ( 8,279 ) 67 Obligations of states and political subdivisions 43,840 ( 1,052 ) 79 25,416 ( 2,776 ) 35 69,256 ( 3,828 ) 114 Corporate debt securities 7,270 ( 186 ) 2 4,442 ( 59 ) 4 11,712 ( 245 ) 6 Total $ 241,646 $ ( 12,069 ) 165 $ 2,076,253 $ ( 336,946 ) 547 $ 2,317,899 $ ( 349,015 ) 712 December 31, 2022 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 $ 107,011 $ ( 8,435 ) 35 $ 118,779 $ ( 25,015 ) 13 $ 225,790 $ ( 33,450 ) 48 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 514,789 ( 39,246 ) 294 1,328,906 ( 258,741 ) 202 1,843,695 ( 297,987 ) 496 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 190,189 ( 5,106 ) 38 159,543 ( 4,974 ) 36 349,732 ( 10,080 ) 74 Obligations of states and political subdivisions 67,822 ( 1,815 ) 128 7,812 ( 2,282 ) 10 75,634 ( 4,097 ) 138 Corporate debt securities 7,225 ( 226 ) 3 4,433 ( 67 ) 3 11,658 ( 293 ) 6 Total $ 887,036 $ ( 54,828 ) 498 $ 1,619,473 $ ( 291,079 ) 264 $ 2,506,509 $ ( 345,907 ) 762 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 $ 63.2 million and $ 36.2 million at June 30, 2023 and December 31, 2022, 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, 2023
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 $ 10.3 million and $ 9.6 million at June 30, 2023 and December 31, 2022 , respectively. The un-accreted discount on purchased loans from acquisitions was $ 15.5 million at June 30, 2023 and $ 18.0 million at December 31, 2022. June 30, December 31, (unaudited, in thousands) 2023 2022 Commercial real estate: Land and construction $ 829,744 $ 943,887 Improved property 5,465,723 5,117,457 Total commercial real estate 6,295,467 6,061,344 Commercial and industrial 1,558,491 1,579,395 Residential real estate 2,341,928 2,140,584 Home equity 701,824 695,065 Consumer 232,254 226,340 Total portfolio loans 11,129,964 10,702,728 Loans held for sale 28,970 8,249 Total loans $ 11,158,934 $ 10,710,977 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. For the calculation as of June 30, 2023, 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 4.0 %, and subsequently increase to an average of 4.8 % over the remainder of the forecast period. Accrued interest receivable for loans was $ 54.0 million and $ 51.8 million at June 30, 2023 and December 31, 2022 , 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 $ 16.2 million and $ 17.0 million at June 30, 2023 and December 31, 2022, 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, 2023 and 2022 (unaudited, in thousands) Commercial Commercial Commercial Residential Home Consumer Deposit Total 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 Balance at December 31, 2021 Allowance for credit $ 7,310 $ 65,355 $ 26,875 $ 15,401 $ 724 $ 3,737 $ 2,220 $ 121,622 Allowance for credit 4,180 201 1,497 1,576 49 272 — 7,775 Total beginning allowance for credit 11,490 65,556 28,372 16,977 773 4,009 2,220 129,397 Provision for credit losses: Provision for loan losses 845 ( 6,401 ) 1,097 ( 491 ) 38 780 ( 58 ) ( 4,190 ) Provision for loan commitments 696 ( 201 ) ( 1,288 ) 582 14 140 — ( 57 ) Total provision for credit 1,541 ( 6,602 ) ( 191 ) 91 52 920 ( 58 ) ( 4,247 ) Charge-offs ( 73 ) ( 137 ) ( 355 ) ( 243 ) ( 178 ) ( 1,690 ) ( 776 ) ( 3,452 ) Recoveries 25 740 551 264 193 1,477 173 3,423 Net (charge-offs) recoveries ( 48 ) 603 196 21 15 ( 213 ) ( 603 ) ( 29 ) Balance at June 30, 2022 Allowance for credit 8,107 59,557 28,168 14,931 777 4,304 1,559 117,403 Allowance for credit 4,876 — 209 2,158 63 412 — 7,718 Total ending allowance for credit $ 12,983 $ 59,557 $ 28,377 $ 17,089 $ 840 $ 4,716 $ 1,559 $ 125,121 (1) Deposit overdrafts of $ 4.5 million and $ 11.3 million are included in total portfolio loans for the periods ending June 30, 2023 and June 30, 2022, 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 Footnote 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, 2023 Allowance for credit losses: Loans individually-evaluated $ — $ 2,125 $ — $ — $ — $ — $ — $ 2,125 Loans collectively-evaluated 5,798 50,826 32,137 20,315 4,420 3,450 1,095 118,041 Loan commitments (2) 7,193 182 527 1,594 628 — — 10,124 Total allowance for credit $ 12,991 $ 53,133 $ 32,664 $ 21,909 $ 5,048 $ 3,450 $ 1,095 $ 130,290 Portfolio loans: Individually-evaluated for credit $ — $ 28,107 $ 242 $ — $ — $ — $ — $ 28,349 Collectively-evaluated for credit 829,744 5,437,616 1,558,249 2,341,928 701,824 232,254 — 11,101,615 Total portfolio loans $ 829,744 $ 5,465,723 $ 1,558,491 $ 2,341,928 $ 701,824 $ 232,254 $ — $ 11,129,964 December 31, 2022 Allowance for credit losses: Loans individually-evaluated $ — $ 2,988 $ 130 $ — $ — $ — $ — $ 3,118 Loans collectively-evaluated 6,737 49,671 31,410 18,208 4,234 3,127 1,285 114,672 Loan commitments (2) 6,025 — — 2,215 128 — — 8,368 Total allowance for credit $ 12,762 $ 52,659 $ 31,540 $ 20,423 $ 4,362 $ 3,127 $ 1,285 $ 126,158 Portfolio loans: Individually-evaluated for credit $ 24,629 $ 25,369 $ 401 $ — $ — $ — $ — $ 50,399 Collectively-evaluated for credit 919,258 5,092,088 1,578,994 2,140,584 695,065 226,340 — 10,652,329 Total portfolio loans $ 943,887 $ 5,117,457 $ 1,579,395 $ 2,140,584 $ 695,065 $ 226,340 $ — $ 10,702,728 (1) Deposit overdrafts of $ 4.5 million and $ 4.4 million are included in total portfolio loans for the periods ending June 30, 2023 and December 31, 2022, respectively. (2) For additional detail relating to loan commitments, see Footnote 10, "Commitments and Contingent Liabilities." 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, 2023 Pass $ 820,779 $ 5,340,591 $ 1,505,781 $ 7,667,151 Criticized - compromised 2,954 70,896 45,921 119,771 Classified - substandard 6,011 54,236 6,789 67,036 Classified - doubtful — — — — Total $ 829,744 $ 5,465,723 $ 1,558,491 $ 7,853,958 As of December 31, 2022 Pass $ 911,804 $ 4,940,135 $ 1,538,300 $ 7,390,239 Criticized - compromised 1,329 121,393 25,223 147,945 Classified - substandard 30,754 55,929 15,872 102,555 Classified - doubtful — — — — Total $ 943,887 $ 5,117,457 $ 1,579,395 $ 7,640,739 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, 2023 and $ 24.8 million at December 31, 2022 , of which $ 3.4 million and $ 5.9 million were accruing, for each period, respectively. These loans are not included in the tables above. In addition, $ 12.1 million and $ 25.0 million of unfunded commercial loan commitments are also not included in the tables above at June 30, 2023 and December 31, 2022, respectively. 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, 2023 Commercial real estate: Land and construction $ 829,744 $ — $ — $ — $ — $ 829,744 $ — Improved property 5,446,988 260 6,761 11,714 18,735 5,465,723 1,235 Total commercial real estate 6,276,732 260 6,761 11,714 18,735 6,295,467 1,235 Commercial and industrial 1,554,606 749 422 2,714 3,885 1,558,491 537 Residential real estate 2,333,554 591 2,287 5,496 8,374 2,341,928 1,301 Home equity 692,980 3,039 1,167 4,638 8,844 701,824 1,655 Consumer 227,778 3,098 912 466 4,476 232,254 419 Total portfolio loans 11,085,650 7,737 11,549 25,028 44,314 11,129,964 5,147 Loans held for sale 28,970 — — — — 28,970 — Total loans $ 11,114,620 $ 7,737 $ 11,549 $ 25,028 $ 44,314 $ 11,158,934 $ 5,147 Nonperforming loans included above are as follows: Non-accrual loans $ 10,736 $ 285 $ 653 $ 19,881 $ 20,819 $ 31,555 As of December 31, 2022 Commercial real estate: Land and construction $ 942,236 $ — $ 910 $ 741 $ 1,651 $ 943,887 $ 629 Improved property 5,099,342 2,147 331 15,637 18,115 5,117,457 84 Total commercial real estate 6,041,578 2,147 1,241 16,378 19,766 6,061,344 713 Commercial and industrial 1,574,311 1,427 519 3,138 5,084 1,579,395 1,586 Residential real estate 2,129,095 853 3,536 7,100 11,489 2,140,584 1,551 Home equity 686,762 3,885 621 3,797 8,303 695,065 1,063 Consumer 222,153 2,910 704 573 4,187 226,340 530 Total portfolio loans 10,653,899 11,222 6,621 30,986 48,829 10,702,728 5,443 Loans held for sale 8,249 — — — — 8,249 — Total loans $ 10,662,148 $ 11,222 $ 6,621 $ 30,986 $ 48,829 $ 10,710,977 $ 5,443 Nonperforming loans included above are as follows: Non-accrual loans $ 10,337 $ 1,495 $ 870 $ 25,483 $ 27,848 $ 38,185 TDRs accruing interest 3,131 7 32 60 99 3,230 Total nonperforming loans $ 13,468 $ 1,502 $ 902 $ 25,543 $ 27,947 $ 41,415 (1) For the table presented as of December 31, 2022 , loans 90 days or more past due and accruing interest exclude TDRs 90 days or more past due and accruing interest. The following tables summarize nonperforming loans: Nonperforming Loans June 30, 2023 December 31, 2022 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 $ — $ — $ — $ 112 $ 112 $ — Improved property 12,958 11,196 — 18,367 16,601 — Commercial and industrial 2,894 2,350 — 4,102 3,112 — Residential real estate 17,308 12,650 — 21,084 16,057 — Home equity 6,901 5,261 — 6,970 5,374 — Consumer 175 98 — 316 159 — Total nonperforming loans without a specific allowance 40,236 31,555 — 50,951 41,415 — Total nonperforming loans with a specific allowance — — — — — — Total nonperforming loans $ 40,236 $ 31,555 $ — $ 50,951 $ 41,415 $ — (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, 2023 June 30, 2022 June 30, 2023 June 30, 2022 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 $ — $ — $ 105 $ 1 $ 37 $ — $ 94 $ 2 Improved property 14,698 — 7,595 6 15,332 — 7,750 14 Commercial and industrial 2,780 — 4,631 — 2,890 — 4,831 3 Residential real estate 12,744 — 18,149 36 13,848 — 18,728 72 Home equity 5,061 — 5,411 3 5,165 — 5,396 6 Consumer 104 — 464 1 122 — 496 2 Total nonperforming loans without a specific allowance 35,386 — 36,354 47 37,394 — 37,295 99 With a specific allowance recorded: Commercial real estate: Land and construction — — — — — — — — Improved property — — — — — — — — Total nonperforming loans with a specific allowance — — — — — — — — Total nonperforming loans $ 35,386 $ — $ 36,354 $ 47 $ 37,394 $ — $ 37,295 $ 99 The following table presents the recorded investment in non-accrual loans: Non-accrual Loans (1) June 30, December 31, (unaudited, in thousands) 2023 2022 Commercial real estate: Land and construction $ — $ 112 Improved property 11,196 16,254 Total commercial real estate 11,196 16,366 Commercial and industrial 2,350 2,946 Residential real estate 12,650 13,695 Home equity 5,261 5,044 Consumer 98 134 Total $ 31,555 $ 38,185 (1) At June 30, 2023 , there were three borrowers with a loan balance greater than $ 1.0 million, which totaled $ 8.3 million, as compared to three borrowers with a loan balance greater than $ 1.0 million totaling $ 11.8 million at December 31, 2022 . Total non-accrual loans include loans that are also restructured for borrowers experiencing financial difficulty or were previously designated as TDRs prior to the adoption of ASU 2022-02. 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, 2023 presented by loan category: For the Three Months Ended June 30, 2023 (unaudited, in thousands) Term Payment Total % 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, 2023 (unaudited, in thousands) Term Payment Total % 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 0.0 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 $ 3.5 million at June 30, 2023 . These commitments are not included in the table 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, 2023, presented by loan category: For the Three Months Ended June 30, 2023 (unaudited, in thousands) Weighted-Average Commercial real estate - land and construction 12 Commercial real estate - improved property 9 Commercial and industrial 8 Residential real estate — Home equity — Consumer — For the Six Months Ended June 30, 2023 (unaudited, in thousands) Weighted-Average Commercial real estate - land and construction 4 Commercial real estate - improved property 22 Commercial and industrial 9 Residential real estate — Home equity 120 Consumer — There have been no MBEFDs which defaulted (defined as past due 90 days) after the loan was modified during the three and six months ended June 30, 2023. The following table presents an aging analysis of portfolio loans that were modified on or after January 1, 2023, the date that Wesbanco adopted ASU 2022-02, by loan category, as of June 30, 2023: 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. Troubled Debt Restructuring Disclosures (prior to the adoption of ASU 2022-02) The following table presents details related to loans identified as TDRs during the three and six months ended June 30, 2022: New TDRs (1) For the Three Months Ended June 30, 2022 Pre- Post- Modification Modification Outstanding Outstanding Number of Recorded Recorded (unaudited, dollars in thousands) Modifications Investment Investment Commercial real estate: Land and construction — $ — $ — Improved property 1 186 184 Total commercial real estate 1 186 184 Commercial and industrial — — — Residential real estate — — — Home equity — — — Consumer — — — Total 1 $ 186 $ 184 New TDRs (1) For the Six Months Ended June 30, 2022 Pre- Post- Modification Modification Outstanding Outstanding Number of Recorded Recorded (unaudited, dollars in thousands) Modifications Investment Investment Commercial real estate: Land and construction 1 $ 84 $ 54 Improved property 1 189 184 Total commercial real estate 2 273 238 Commercial and industrial — — — Residential real estate — — — Home equity — — — Consumer — — — Total 2 $ 273 $ 238 (1) Excludes loans that were either paid off or charged-off by period end. The pre-modification balance represents the balance outstanding at the beginning of the period. The post-modification balance represents the outstanding balance at period end. There were no TDRs which defaulted (defined as past due 90 days) during the three months ended June 30, 2022 that were restructured within the last twelve months prior to June 30, 2022. The following tables summarize amortized cost basis loan balances by year of origination and credit quality indicator: Loans As of June 30, 2023 Amortized Cost Basis by Origination Year (unaudited, 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 $ 96,806 $ 234,122 $ 139,586 $ 51,797 $ 50,568 $ 42,964 $ 135,538 $ 69,398 $ 820,779 Criticized - compromised — — 260 — — 20 — 2,674 2,954 Classified - substandard — — — — — 11 — 6,000 6,011 Classified - doubtful — — — — — — — — — Total $ 96,806 $ 234,122 $ 139,846 $ 51,797 $ 50,568 $ 42,995 $ 135,538 $ 78,072 $ 829,744 Current-period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ 222 $ 222 Commercial real estate: improved property Risk rating: Pass $ 288,153 $ 1,095,462 $ 612,900 $ 605,147 $ 572,255 $ 1,883,067 $ 74,855 $ 208,752 $ 5,340,591 Criticized - compromised — 858 1,677 5,107 3,898 58,364 992 — 70,896 Classified - substandard — 515 416 714 13,397 24,612 137 14,445 54,236 Classified - doubtful — — — — — — — — — Total $ 288,153 $ 1,096,835 $ 614,993 $ 610,968 $ 589,550 $ 1,966,043 $ 75,984 $ 223,197 $ 5,465,723 Current-period gross charge-offs $ — $ — $ — $ — $ — $ 1,381 $ — $ — $ 1,381 Commercial and industrial Risk rating: Pass $ 118,188 $ 256,690 $ 165,711 $ 100,007 $ 48,413 $ 289,745 $ 487,460 $ 39,567 $ 1,505,781 Criticized - compromised 1,077 497 1,350 330 7,109 18,315 10,562 6,681 45,921 Classified - substandard 50 215 94 88 1,253 2,184 1,478 1,427 6,789 Classified - doubtful — — — — — — — — — Total $ 119,315 $ 257,402 $ 167,155 $ 100,425 $ 56,775 $ 310,244 $ 499,500 $ 47,675 $ 1,558,491 Current-period gross charge-offs $ 48 $ 86 $ 404 $ 43 $ — $ 211 $ — $ 207 $ 999 Residential real estate Loan delinquency: Current $ 161,338 $ 536,141 $ 484,264 $ 192,707 $ 91,106 $ 493,384 $ — $ 374,614 $ 2,333,554 30-59 days past due — — — — — 591 — — 591 60-89 days past due — — 188 — — 2,099 — — 2,287 90 days or more past due — — — — 843 4,618 — 35 5,496 Total $ 161,338 $ 536,141 $ 484,452 $ 192,707 $ 91,949 $ 500,692 $ — $ 374,649 $ 2,341,928 Current-period gross charge-offs $ — $ — $ — $ — $ 5 $ ( 12 ) $ — $ — $ ( 7 ) Home equity Loan delinquency: Current $ 11,595 $ 806 $ 1,871 $ 1,539 $ 1,747 $ 25,019 $ 649,356 $ 1,047 $ 692,980 30-59 days past due — 58 — 252 269 555 1,905 — 3,039 60-89 days past due — — 15 101 41 1,010 — — 1,167 90 days or more past due — 305 110 595 286 2,921 — 421 4,638 Total $ 11,595 $ 1,169 $ 1,996 $ 2,487 $ 2,343 $ 29,505 $ 651,261 $ 1,468 $ 701,824 Current-period gross charge-offs $ — $ 3 $ — $ — $ 11 $ 295 $ 6 $ — $ 315 Consumer Loan delinquency: Current $ 53,436 $ 69,969 $ 28,595 $ 18,303 $ 17,244 $ 16,699 $ 23,530 $ 2 $ 227,778 30-59 days past due 173 1,364 659 419 65 391 27 — 3,098 60-89 days past due — 467 303 57 32 53 — — 912 90 days or more past due — 98 94 136 4 134 — — 466 Total $ 53,609 $ 71,898 $ 29,651 $ 18,915 $ 17,345 $ 17,277 $ 23,557 $ 2 $ 232,254 Current-period gross charge-offs $ — $ 814 $ 510 $ 98 $ 49 $ 130 $ — $ — $ 1,601 Loans As of December 31, 2022 Amortized Cost Basis by Origination Year (unaudited, in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: land and construction Risk rating: Pass $ 159,769 $ 136,131 $ 138,171 $ 155,141 $ 61,823 $ 51,381 $ 117,237 $ 92,151 $ 911,804 Criticized - compromised 559 265 — — 24 31 — 450 1,329 Classified - substandard — — 6,001 — — 124 — 24,629 30,754 Classified - doubtful — — — — — — — — — Total $ 160,328 $ 136,396 $ 144,172 $ 155,141 $ 61,847 $ 51,536 $ 117,237 $ 117,230 $ 943,887 Current-period gross charge-offs $ — $ — $ — $ — $ 73 $ — $ — $ — $ 73 Commercial real estate: improved property Risk rating: Pass $ 1,082,984 $ 620,205 $ 613,663 $ 528,004 $ 371,880 $ 1,551,478 $ 72,327 $ 99,594 $ 4,940,135 Criticized - compromised 10,554 354 2,877 7,659 13,551 85,332 1,066 — 121,393 Classified - substandard — 658 275 15,489 9,761 29,712 34 — 55,929 Classified - doubtful — — — — — — — — — Total $ 1,093,538 $ 621,217 $ 616,815 $ 551,152 $ 395,192 $ 1,666,522 $ 73,427 $ 99,594 $ 5,117,457 Current-period gross charge-offs $ — $ — $ 128 $ 100 $ 3 $ 564 $ — $ — $ 795 Commercial and industrial Risk rating: Pass $ 280,510 $ 184,805 $ 116,890 $ 72,142 $ 103,660 $ 232,062 $ 526,025 $ 22,206 $ 1,538,300 Criticized - compromised 917 1,192 270 8,278 264 2,524 7,654 4,124 25,223 Classified - substandard 93 3,209 976 2,157 97 2,854 1,066 5,420 15,872 Classified - doubtful — — — — — — — — — Total $ 281,520 $ 189,206 $ 118,136 $ 82,577 $ 104,021 $ 237,440 $ 534,745 $ 31,750 $ 1,579,395 Current-period gross charge-offs $ — $ 16 $ 234 $ 275 $ 70 $ 182 $ — $ 291 $ 1,068 Residential real estate Loan delinquency: Current $ 541,659 $ 556,928 $ 211,496 $ 97,160 $ 52,135 $ 478,977 $ — $ 190,740 $ 2,129,095 30-59 days past due — — — — — 853 — — 853 60-89 days past due — 442 349 65 — 2,680 — — 3,536 90 days or more past due — — — 285 119 6,654 — 42 7,100 Total $ 541,659 $ 557,370 $ 211,845 $ 97,510 $ 52,254 $ 489,164 $ — $ 190,782 $ 2,140,584 Current-period gross charge-offs $ — $ — $ — $ — $ 6 $ 494 $ — $ — $ 500 Home equity Loan delinquency: Current $ 10,718 $ 1,459 $ 1,133 $ 1,774 $ 1,088 $ 25,203 $ 644,430 $ 957 $ 686,762 30-59 days past due 80 61 180 67 34 1,165 2,260 38 3,885 60-89 days past due — 15 — 50 88 458 — 10 621 90 days or more past due — — 572 93 257 2,425 16 434 3,797 Total $ 10,798 $ 1,535 $ 1,885 $ 1,984 $ 1,467 $ 29,251 $ 646,706 $ 1,439 $ 695,065 Current-period gross charge-offs $ — $ — $ — $ — $ — $ 310 $ — $ 48 $ 358 Consumer Loan delinquency: Current $ 84,817 $ 36,123 $ 25,071 $ 25,535 $ 8,488 $ 16,337 $ 25,755 $ 27 $ 222,153 30-59 days past due 980 937 488 159 98 217 31 — 2,910 60-89 days past due 184 293 94 47 29 57 — — 704 90 days or more past due 183 208 69 32 2 79 — — 573 Total $ 86,164 $ 37,561 $ 25,722 $ 25,773 $ 8,617 $ 16,690 $ 25,786 $ 27 $ 226,340 Current-period gross charge-offs $ 769 $ 1,237 $ 624 $ 333 $ 186 $ 326 $ — $ 1 $ 3,476 The following table summarizes other real estate owned and repossessed assets included in other assets: June 30, December 31, (unaudited, in thousands) 2023 2022 Other real estate owned $ 1,289 $ 1,397 Repossessed assets 143 89 Total other real estate owned and repossessed assets $ 1,432 $ 1,486 Residential real estate included in other real estate owned was $ 0.1 million and $ 0 at June 30, 2023 and December 31, 2022, respectively. At June 30, 2023 and December 31, 2022 , formal foreclosure proceedings were in process on residential real estate loans totaling $ 4.4 million and $ 4.9 million, respectively.

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	NOTE 5. 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, 2023 and December 31, 2022 , Wesbanco had 186 and 159 customer interest rate swaps and caps with an aggregate notional amount of $ 1.2 billion and $ 0.9 billion, respectively, related to this program. Wesbanco recognized income for the related swap and cap fees of $ 2.4 million and $ 0.9 million for the three months ended June 30, 2023 and 2022 , respectively, and $ 4.3 million and $ 1.0 million for the six months ended June 30, 2023 and 2022, 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, 2023 and December 31, 2022 , Wesbanco had 18 and 16 risk participation-in agreements with an aggregate notional amount of $ 198.1 million and $ 187.8 million, respectively. As of June 30, 2023 and December 31, 2022 , Wesbanco had one risk participation-out agreement with an aggregate notional amount of $ 9.4 million and $ 9.6 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 $ 14.5 million at June 30, 2023 and December 31, 2022, 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, 2023 and December 31, 2022: June 30, 2023 December 31, 2022 (unaudited, in thousands) Notional or Asset Liability Notional or Asset Liability Derivatives Loan Swaps: Interest rate swaps and caps $ 1,243,199 $ 77,753 $ 77,458 $ 936,834 $ 75,840 $ 74,683 Other contracts: Interest rate lock commitments 33,293 — 171 10,071 — 43 Forward TBA contracts 51,000 322 — 14,500 53 — Total derivatives $ 78,075 $ 77,629 $ 75,893 $ 74,726 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, 2023 and 2022, respectively. For the Three Months For the Six Months (unaudited, in thousands) Location of Gain/(Loss) 2023 2022 2023 2022 Interest rate swaps and caps Other income $ 176 $ 1,142 $ ( 863 ) $ 2,603 Interest rate lock commitments Mortgage banking income ( 315 ) 362 ( 128 ) 44 Forward TBA contracts Mortgage banking income 637 605 448 2,048 Total $ 498 $ 2,109 $ ( 543 ) $ 4,695 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, 2023, 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 recent rise in interest rates, as of June 30, 2023 , Wesbanco is holding collateral from various derivative counterparties with a market value of $ 44.3 million.

Benefit Plans

Benefit Plans	6 Months Ended
	Jun. 30, 2023
Retirement Benefits [Abstract]
Benefit Plans	NOTE 6. 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) 2023 2022 2023 2022 Service cost – benefits earned during year $ 354 $ 546 $ 704 $ 1,086 Interest cost on projected benefit obligation 1,572 1,026 3,126 2,039 Expected return on plan assets ( 2,781 ) ( 2,885 ) ( 5,531 ) ( 5,738 ) Amortization of prior service cost ( 9 ) ( 9 ) ( 18 ) ( 17 ) Amortization of net loss 225 126 448 251 Net periodic pension income $ ( 639 ) $ ( 1,196 ) $ ( 1,271 ) $ ( 2,379 ) The service cost of $ 0.7 million and $ 1.1 million for the six months ended June 30, 2023 and 2022 , respectively, is included in salaries and wages, and periodic pension income of $ 2.0 million and $ 3.5 million for the six months ended June 30, 2023 and 2022, respectively, 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 is not required for 2023 , and Wesbanco currently does no t expect to make a voluntary contribution to the Plan in 2023 .

Fair Value Measurement

Fair Value Measurement	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurement	NOTE 7. 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, 2023 and December 31, 2022: June 30, 2023 Fair Value Measurements Using: June 30, Quoted Prices in Significant Significant (unaudited, in thousands) 2023 (level 1) (level 2) (level 3) Recurring fair value measurements Equity securities $ 11,948 $ 11,948 $ — $ — Available-for-sale debt securities U.S. Government sponsored entities and agencies 211,951 — 211,951 — Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 1,721,887 — 1,721,887 — Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 305,242 — 305,242 — Obligations of states and political subdivisions 78,431 — 77,254 1,177 Corporate debt securities 11,711 — 11,711 — Total available-for-sale debt securities $ 2,329,222 $ — $ 2,328,045 $ 1,177 Loans held for sale 28,970 — 28,970 — Other assets - interest rate swaps 77,753 — 77,753 — Total assets recurring fair value measurements $ 2,447,893 $ 11,948 $ 2,434,768 $ 1,177 Other liabilities - interest rate swaps $ 77,458 $ — $ 77,458 $ — Total liabilities recurring fair value measurements $ 77,458 $ — $ 77,458 $ — Nonrecurring fair value measurements Collateral dependent loans $ 941 $ — $ — $ 941 Other real estate owned and repossessed assets 1,432 — — 1,432 Total nonrecurring fair value measurements $ 2,373 $ — $ — $ 2,373 December 31, 2022 Fair Value Measurements Using: December 31, Quoted Prices in Significant Significant (in thousands) 2022 (level 1) (level 2) (level 3) Recurring fair value measurements Equity securities $ 11,506 $ 11,506 $ — $ — Available-for-sale debt securities U.S. Government sponsored entities and agencies 225,970 — 225,970 — Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 1,846,053 — 1,846,053 — Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 349,731 — 349,731 — Obligations of states and political subdivisions 92,228 — 91,049 1,179 Corporate debt securities 15,158 — 15,158 — Total available-for-sale debt securities $ 2,529,140 $ — $ 2,527,961 $ 1,179 Loans held for sale 8,249 — 8,249 — Other assets - interest rate swaps 75,840 — 75,840 — Total assets recurring fair value measurements $ 2,624,735 $ 11,506 $ 2,612,050 $ 1,179 Other liabilities - interest rate swaps $ 74,683 $ — $ 74,683 $ — Total liabilities recurring fair value measurements $ 74,683 $ — $ 74,683 $ — Nonrecurring fair value measurements Collateral dependent loans $ 878 $ — $ — $ 878 Other real estate owned and repossessed assets 1,486 — — 1,486 Total nonrecurring fair value measurements $ 2,364 $ — $ — $ 2,364 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, 2023 or for the year ended December 31, 2022. 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, 2023 Collateral dependent loans $ 941 Appraisal of collateral (1) Appraisal adjustments (2) ( 0.0 %)/( 0.0 %) Liquidation expenses (2) ( 3.7 %)/( 3.7 %) Other real estate owned and repossessed assets $ 1,432 Appraisal of collateral (1), (3) December 31, 2022 Collateral dependent loans $ 878 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 $ 1,486 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, 2023 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 $ 562,318 $ 562,318 $ 562,318 $ — $ — Equity securities 11,948 11,948 11,948 — — Available-for-sale debt securities 2,329,222 2,329,222 — 2,328,045 1,177 Net held-to-maturity debt securities 1,224,277 1,072,229 — 1,071,938 291 Net loans 11,009,798 10,931,441 — — 10,931,441 Loans held for sale 28,970 28,970 — 28,970 — Other assets - interest rate swaps 77,753 77,753 — 77,753 — Accrued interest receivable 69,773 69,773 69,773 — — Financial Liabilities Deposits 12,861,434 12,855,884 11,901,327 954,557 — Federal Home Loan Bank borrowings 1,380,000 1,377,968 — 1,377,968 — Other borrowings 101,286 95,095 95,095 — — Subordinated debt and junior subordinated debt 281,854 245,460 — 245,460 — Other liabilities - interest rate swaps 77,458 77,458 — 77,458 — Accrued interest payable 8,869 8,869 8,869 — — Fair Value Measurements at December 31, 2022 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 $ 408,411 $ 408,411 $ 408,411 $ — $ — Equity securities 11,506 11,506 11,506 — — Available-for-sale debt securities 2,529,140 2,529,140 — 2,527,961 1,179 Net held-to-maturity debt securities 1,248,409 1,084,390 — 1,084,071 319 Net loans 10,584,938 9,487,038 — — 9,487,038 Loans held for sale 8,249 8,249 — 8,249 — Other assets - interest rate swaps 75,840 75,840 — 75,840 — Accrued interest receivable 68,522 68,522 68,522 — — Financial Liabilities Deposits 13,131,090 13,142,943 12,245,272 897,671 — Federal Home Loan Bank borrowings 705,000 705,094 — 705,094 — Other borrowings 135,069 122,926 122,926 — — Subordinated debt and junior subordinated debt 281,404 258,631 — 258,631 — Other liabilities - interest rate swaps 74,683 74,683 — 74,683 — Accrued interest payable 4,593 4,593 4,593 — — 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, 2023
Revenue Recognition [Abstract]
Revenue Recognition	NOTE 8. REVENUE RECOGNITION Interest income, net securities gains (losses) 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, electronic banking fees, mortgage banking income and net gain or loss on sale of 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, 2023 and 2022, respectively: Point of Revenue For the Three Months For the Six Months (unaudited, in thousands) Recognition 2023 2022 2023 2022 Revenue Streams Trust fees Trust account fees Over time $ 5,009 $ 4,416 $ 10,614 $ 9,958 WesMark fees Over time 1,909 2,111 3,798 4,404 Total trust fees 6,918 6,527 14,412 14,362 Service charges on deposits Commercial banking fees Over time 650 602 1,259 1,170 Personal service charges At a point in time and over time 5,582 5,885 11,142 11,407 Total service charges on deposits 6,232 6,487 12,401 12,577 Net securities brokerage revenue Annuity commissions At a point in time 1,840 1,679 3,885 3,261 Equity and debt security trades At a point in time 149 8 149 65 Managed money Over time 284 327 567 654 Trail commissions Over time 250 244 497 498 Total net securities brokerage revenue 2,523 2,258 5,098 4,478 Payment processing fees (1) At a point in time and over time 951 877 1,822 1,618 Electronic banking fees At a point in time 5,010 5,154 9,615 10,499 Mortgage banking income At a point in time 601 1,328 1,027 3,251 Net gain (loss) on other real estate owned and other assets (2) At a point in time and over time 871 ( 1,302 ) 1,104 ( 2,108 ) (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 investments funded by Wesbanco CDC is not within the scope of ASC 606. There were no gains or losses recorded in the current period; however, losses of $ 1.4 million were recorded for the three months ended June 30, 2022, and losses of $ 2.6 million were recorded for the six months ended June 30, 2022.

Comprehensive Income_(Loss)

Comprehensive Income/(Loss)	6 Months Ended
	Jun. 30, 2023
Equity [Abstract]
Comprehensive Income/(Loss)	NOTE 9. COMPREHENSIVE INCOME/(LOSS) The activity in accumulated other comprehensive income/(loss) for the six months ended June 30, 2023 and 2022 is as follows: Accumulated Other Comprehensive Income/(Loss) (1) (unaudited, in thousands) Defined Unrealized Total 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 loss 150 120 270 Period change 150 ( 2,361 ) ( 2,211 ) Balance at June 30, 2023 $ ( 385 ) $ ( 264,242 ) $ ( 264,627 ) Balance at December 31, 2021 $ ( 398 ) $ ( 4,722 ) $ ( 5,120 ) Other comprehensive loss before reclassifications — ( 171,058 ) ( 171,058 ) Amounts reclassified from accumulated other comprehensive loss 109 8 117 Period change 109 ( 171,050 ) ( 170,941 ) Balance at June 30, 2022 $ ( 289 ) $ ( 175,772 ) $ ( 176,061 ) (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, 2023 and 2022: Details about Accumulated Other Comprehensive For the Three Months For the Six Months Affected Line Item in the Statement (unaudited, in thousands) 2023 2022 2023 2022 Debt securities available-for-sale (1) : Net securities losses reclassified into earnings $ 8 $ 9 $ 159 $ 10 Net securities gains/(losses) (Non-interest income) Related income tax effect ⁽²⁾ ( 2 ) ( 2 ) ( 39 ) ( 2 ) Provision for income taxes Net effect on accumulated other comprehensive 6 7 120 8 Defined benefit plans (3) : Amortization of net loss and prior service costs 99 73 198 144 Employee benefits (Non-interest expense) Related income tax effect ⁽²⁾ ( 24 ) ( 18 ) ( 48 ) ( 35 ) Provision for income taxes Net effect on accumulated other comprehensive 75 55 150 109 Total reclassifications for the period $ 81 $ 62 $ 270 $ 117 (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 6, “Benefit Plans” for additional detail.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	NOTE 10. 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 $ 10.1 million and $ 8.4 million at June 30, 2023 and December 31, 2022, 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 $ 0.3 million and $ 0.2 million as of June 30, 2023 and December 31, 2022, respectively. 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) 2023 2022 Lines of credit $ 4,204,247 $ 3,806,398 Loans approved but not closed 466,599 398,204 Overdraft limits 389,271 380,143 Letters of credit 33,991 30,362 Contingent obligations and other guarantees 23,002 30,782 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, 2023
Segment Reporting [Abstract]
Business Segments	NOTE 11. 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 $ 5.1 billion and $ 4.8 billion at June 30, 2023 and 2022, 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, 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 Three Months Ended June 30, 2022 Interest and dividend income $ 118,447 $ — $ 118,447 Interest expense 6,219 — 6,219 Net interest income 112,228 — 112,228 Provision for credit losses ( 812 ) — ( 812 ) Net interest income after provision for credit losses 113,040 — 113,040 Non-interest income 20,456 6,527 26,983 Non-interest expense 83,112 3,907 87,019 Income before provision for income taxes 50,384 2,620 53,004 Provision for income taxes 9,706 550 10,256 Net income 40,678 2,070 42,748 Preferred stock dividends 2,531 — 2,531 Net income available to common shareholders $ 38,147 $ 2,070 $ 40,217 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 For the Six Months Ended June 30, 2022 Interest and dividend income $ 230,621 $ — $ 230,621 Interest expense 10,683 — 10,683 Net interest income 219,938 — 219,938 Provision for credit losses ( 4,250 ) — ( 4,250 ) Net interest income after provision for credit losses 224,188 — 224,188 Non-interest income 43,003 14,362 57,365 Non-interest expense 166,339 8,230 174,569 Income before provision for income taxes 100,852 6,132 106,984 Provision for income taxes 18,826 1,288 20,114 Net income 82,026 4,844 86,870 Preferred stock dividends 5,063 — 5,063 Net income available to common shareholders $ 76,963 $ 4,844 $ 81,807 Total non-fiduciary assets of the trust and investment services segment were $ 3.4 million (including $ 1.0 million of trust customer intangibles) and $ 3.7 million (including $ 1.3 million of trust customer intangibles) at June 30, 2023 and 2022 , respectively. All other assets, including goodwill and the remainder of other intangible assets, were allocated to the Community Banking segment.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2023
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, 2022. 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 2022 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.
Modifications for Borrowers Experiencing Financial Difficulty ("MBEFD")	Modifications for Borrowers Experiencing Financial Difficulty (“MBEFD”) — A modification of a loan for borrowers experiencing financial difficulty is applicable when the loan modification results in a direct change in the timing or amount of contractual cash flows. The most common modifications provided to borrowers experiencing financial difficulty are expected to occur in the form of principal forgiveness, interest rate reductions, other-than-insignificant-payment delays, or term extensions under ASC 310-10-50-39. Upon Wesbanco's adoption of Accounting Standards Update (“ASU”) 2022-02 on January 1, 2023, Troubled Debt Restructuring ("TDR") accounting was prospectively discontinued and economic concessions for modifications occurring on or after the adoption date are no longer measured. This accounting also results in the elimination of any existing economic concession related to a loan that was previously designated as a TDR if such loan is restructured on or after January 1, 2023. Due to the elimination of economic concessions under ASU 2022-02, the standard may result in modified loans being subject to the new disclosures that would have not been considered concessions and not treated as TDRs. When determining whether a debtor is experiencing financial difficulties, consideration is given to any known default on any of its debt or whether it is probable that the debtor would be in payment default in the foreseeable future without the modification. Other indicators of financial difficulty include whether the debtor has declared or is in the process of declaring bankruptcy, the debtor’s ability to continue as a going concern, or the debtor’s projected cash flow to service its debt (including principal & interest) in accordance with the contractual terms for the foreseeable future, without a modification. If the payment of principal at original maturity is primarily dependent on the value of collateral, the current value of that collateral is considered in determining whether the principal will be paid. The modification of a loan does not increase the allowance or provision for credit losses unless the loan is extended, or the loans are commercial loans that are individually evaluated for impairment, in which case a specific reserve is established pursuant to GAAP. Portfolio segment loss history is the primary factor for establishing the allowance for residential real estate, home equity and consumer MBEFDs. Non-accrual loans that are restructured remain on non-accrual, but may move to accrual status after they have performed according to the restructured terms for a period of time. MBEFDs on accrual status generally remain on accrual as long as they continue to perform in accordance with their modified terms. MBEFDs may also be placed on non-accrual if they do not perform in accordance with the restructured terms. Loans may be removed from MBEFD status after they have performed according to the renegotiated terms for a period of time.
Recent accounting pronouncements	Recent accounting pronouncements— The Financial Accounting Standards Board (“FASB”) issued Accounting Standards Updates (“ASU”) as noted below. 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 are effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. The adoption of this pronouncement is not expected to 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 are effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. 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 not expected to 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 is effective for fiscal years beginning after December 15, 2023. The adoption of this full pronouncement is not expected to 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 are effective for fiscal years beginning after December 15, 2023, and interim periods within those fiscal years. Wesbanco is currently assessing the impact of ASU 2022-03 on its Consolidated Financial Statements. ASU 2022-02 Financial Instruments - Credit Losses (Topic 326) In March 2022, the FASB issued ASU 2022-02, "Financial Instruments - Credit Losses (Topic 326)." The amendments in this ASU eliminate the accounting guidance for TDRs by creditors in Subtopic 310-40, "Receivables - Troubled Debt Restructurings by Creditors," while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. Specifically, rather than applying the recognition and measurement guidance for TDRs, an entity must apply the loan refinancing and restructuring guidance in paragraphs 310-20-35-9 through 35-11 to determine whether a modification results in a new loan or a continuation of an existing loan. In addition, for public business entities, the amendments in this Update require that an entity disclose current-period gross writeoffs by year of origination for financing receivables and net investments in leases within the scope of Subtopic 326-20, "Financial Instruments - Credit Losses - Measured at Amortized Cost." For Wesbanco, this update was effective beginning on January 1, 2023 . The adoption of this pronouncement did not have a material impact on the Consolidated Financial Statements. For the additional disclosure requirements in this ASU, please refer to the MBEFD policy above and Footnote 4, "Loans and the Allowance for Credit Losses." ASU 2020-04, ASU 2021-01 and ASU 2022-06 Reference Rate Reform (Topic 848) In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform (Topic 848).” This ASU provided temporary, optional guidance to ease the potential burden in accounting for, or recognizing the effects of, the transition away from the London Interbank Offered Rate ("LIBOR") or other reference rate expected to be discontinued on financial reporting. The ASU also provides optional expedients for contract modifications that replace a reference rate affected by reference rate reform. The guidance is effective as of March 12, 2020 through December 31, 2022, and can be adopted at any time during this period. In January 2021, the FASB issued ASU 2021-01, “Reference Rate Reform (Topic 848): Scope.” This ASU refines the scope of Topic 848 and addresses questions about whether Topic 848 can be applied to derivative instruments that do not reference a rate that is expected to be discontinued, but that use an interest rate for margining, discounting or contract price alignment that is expected to be modified as a result of reference rate reform. ASU 2021-01 is effective upon issuance through December 31, 2024, and can be adopted at any time during this period. Wesbanco has not offered LIBOR for any new contracts after December 31, 2021. Wesbanco has chosen the One Month Term Secured Overnight Financing Rate ("1M Term SOFR") as its alternative replacement rate for LIBOR on both back-to-back swaps and on one-month variable loans. A transition plan was implemented in 2021 to identify and modify Wesbanco's loans and other financial instruments with attributes that are either directly or indirectly influenced by LIBOR. In December 2022, the FASB issued ASU 2022-06, “Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848.” In the Update, the Board decided to defer the sunset date of Topic 848 to December 31, 2024, to permit entities to apply the guidance in Topic 848 through the expected cessation date of USD LIBOR. In the Board’s view, that time frame would have been sufficient to provide flexibility for additional unforeseen changes to the timeline of USD LIBOR cessation and to accommodate global interbank offered rate (IBOR) transition. The update did not have a material impact on Wesbanco’s Consolidated Financial Statements.

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2023
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) 2023 2022 2023 2022 Numerator for both basic and diluted earnings per common share: Net income available to common shareholders $ 42,349 $ 40,217 $ 82,158 $ 81,807 Denominator: Total average basic common shares outstanding 59,263,949 60,036,103 59,240,958 60,736,858 Effect of dilutive stock options and other stock compensation 121,898 149,104 148,356 162,412 Total diluted average common shares outstanding 59,385,847 60,185,207 59,389,314 60,899,270 Earnings per common share - basic $ 0.71 $ 0.67 $ 1.39 $ 1.35 Earnings per common share - diluted $ 0.71 $ 0.67 $ 1.38 $ 1.34

Securities (Tables)

Securities (Tables)	6 Months Ended
	Jun. 30, 2023
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, 2023 December 31, 2022 (unaudited, in thousands) Amortized Gross Gross Fair Amortized Gross Gross Fair Available-for-sale debt securities U.S. Government sponsored entities and agencies $ 246,526 $ — $ ( 34,575 ) $ 211,951 $ 259,418 $ 2 $ ( 33,450 ) $ 225,970 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 2,023,958 17 ( 302,088 ) 1,721,887 2,144,015 25 ( 297,987 ) 1,846,053 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 313,521 — ( 8,279 ) 305,242 359,811 — ( 10,080 ) 349,731 Obligations of states and political subdivisions 82,146 113 ( 3,828 ) 78,431 96,081 244 ( 4,097 ) 92,228 Corporate debt securities 11,956 — ( 245 ) 11,711 15,451 — ( 293 ) 15,158 Total available-for-sale debt securities $ 2,678,107 $ 130 $ ( 349,015 ) $ 2,329,222 $ 2,874,776 $ 271 $ ( 345,907 ) $ 2,529,140 Held-to-maturity debt securities U.S. Government sponsored entities and agencies $ 3,887 $ — $ ( 404 ) $ 3,483 $ 4,357 $ — $ ( 416 ) $ 3,941 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 42,371 — ( 3,796 ) 38,575 45,909 — ( 3,809 ) 42,100 Obligations of states and political subdivisions 1,157,889 354 ( 147,762 ) 1,010,481 1,177,986 577 ( 159,975 ) 1,018,588 Corporate debt securities 20,323 — ( 633 ) 19,690 20,377 — ( 616 ) 19,761 Total held-to-maturity debt securities (1) $ 1,224,470 $ 354 $ ( 152,595 ) $ 1,072,229 $ 1,248,629 $ 577 $ ( 164,816 ) $ 1,084,390 Total debt securities $ 3,902,577 $ 484 $ ( 501,610 ) $ 3,401,451 $ 4,123,405 $ 848 $ ( 510,723 ) $ 3,613,530 (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, 2023 and December 31, 2022 , respectively.
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, 2023. 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 $ 26,813 $ 26,470 After 1 year through 5 years 130,304 125,997 After 5 years through 10 years 395,725 374,036 After 10 years 2,125,265 1,802,719 Total available-for-sale debt securities $ 2,678,107 $ 2,329,222 Held-to-maturity debt securities Within one year $ 18,112 $ 18,003 After 1 year through 5 years 112,213 110,347 After 5 years through 10 years 411,700 383,357 After 10 years 682,445 560,522 Total held-to-maturity debt securities $ 1,224,470 $ 1,072,229 Total debt securities $ 3,902,577 $ 3,401,451
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, 2023 and 2022, respectively. All gains and losses presented in the table below are included in the net securities gains (losses) line item of the 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) 2023 2022 2023 2022 Debt securities: Gross realized gains $ 2 $ 107 $ 65 $ 138 Gross realized losses ( 9 ) ( 9 ) ( 206 ) ( 11 ) Net (losses) gains on debt securities ( 7 ) 98 ( 141 ) 127 Equity securities: Net unrealized gains (losses) recognized on securities still held 212 ( 1,281 ) 491 ( 1,959 ) Net securities gains (losses) $ 205 $ ( 1,183 ) $ 350 $ ( 1,832 )
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, 2023 and 2022: Allowance for Credit Losses By Category For the Six Months Ended June 30, 2023 and 2022 Residential mortgage -backed securities and collateralized mortgage obligations Obligations of U.S. Government of government states and Corporate sponsored sponsored entities political debt (unaudited, in thousands) entities and agencies and agencies subdivisions Securities Total 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 . Balance at December 31, 2021 $ — $ — $ 174 $ 94 $ 268 Current period provision (1) — — 8 ( 11 ) ( 3 ) Write-offs — — — — — Recoveries — — — — — Balance at June 30, 2022 $ — $ — $ 182 $ 83 $ 265 (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 Footnote 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, 2023 and December 31, 2022, respectively: June 30, 2023 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 $ 21,031 $ ( 1,455 ) 14 $ 190,885 $ ( 33,120 ) 31 $ 211,916 $ ( 34,575 ) 45 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 142,697 ( 9,003 ) 66 1,577,076 ( 293,085 ) 414 1,719,773 ( 302,088 ) 480 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 26,808 ( 373 ) 4 278,434 ( 7,906 ) 63 305,242 ( 8,279 ) 67 Obligations of states and political subdivisions 43,840 ( 1,052 ) 79 25,416 ( 2,776 ) 35 69,256 ( 3,828 ) 114 Corporate debt securities 7,270 ( 186 ) 2 4,442 ( 59 ) 4 11,712 ( 245 ) 6 Total $ 241,646 $ ( 12,069 ) 165 $ 2,076,253 $ ( 336,946 ) 547 $ 2,317,899 $ ( 349,015 ) 712 December 31, 2022 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 $ 107,011 $ ( 8,435 ) 35 $ 118,779 $ ( 25,015 ) 13 $ 225,790 $ ( 33,450 ) 48 Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 514,789 ( 39,246 ) 294 1,328,906 ( 258,741 ) 202 1,843,695 ( 297,987 ) 496 Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 190,189 ( 5,106 ) 38 159,543 ( 4,974 ) 36 349,732 ( 10,080 ) 74 Obligations of states and political subdivisions 67,822 ( 1,815 ) 128 7,812 ( 2,282 ) 10 75,634 ( 4,097 ) 138 Corporate debt securities 7,225 ( 226 ) 3 4,433 ( 67 ) 3 11,658 ( 293 ) 6 Total $ 887,036 $ ( 54,828 ) 498 $ 1,619,473 $ ( 291,079 ) 264 $ 2,506,509 $ ( 345,907 ) 762

Loans and the Allowance for C_2

Loans and the Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2023
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 $ 10.3 million and $ 9.6 million at June 30, 2023 and December 31, 2022 , respectively. The un-accreted discount on purchased loans from acquisitions was $ 15.5 million at June 30, 2023 and $ 18.0 million at December 31, 2022. June 30, December 31, (unaudited, in thousands) 2023 2022 Commercial real estate: Land and construction $ 829,744 $ 943,887 Improved property 5,465,723 5,117,457 Total commercial real estate 6,295,467 6,061,344 Commercial and industrial 1,558,491 1,579,395 Residential real estate 2,341,928 2,140,584 Home equity 701,824 695,065 Consumer 232,254 226,340 Total portfolio loans 11,129,964 10,702,728 Loans held for sale 28,970 8,249 Total loans $ 11,158,934 $ 10,710,977
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, 2023 and 2022 (unaudited, in thousands) Commercial Commercial Commercial Residential Home Consumer Deposit Total 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 Balance at December 31, 2021 Allowance for credit $ 7,310 $ 65,355 $ 26,875 $ 15,401 $ 724 $ 3,737 $ 2,220 $ 121,622 Allowance for credit 4,180 201 1,497 1,576 49 272 — 7,775 Total beginning allowance for credit 11,490 65,556 28,372 16,977 773 4,009 2,220 129,397 Provision for credit losses: Provision for loan losses 845 ( 6,401 ) 1,097 ( 491 ) 38 780 ( 58 ) ( 4,190 ) Provision for loan commitments 696 ( 201 ) ( 1,288 ) 582 14 140 — ( 57 ) Total provision for credit 1,541 ( 6,602 ) ( 191 ) 91 52 920 ( 58 ) ( 4,247 ) Charge-offs ( 73 ) ( 137 ) ( 355 ) ( 243 ) ( 178 ) ( 1,690 ) ( 776 ) ( 3,452 ) Recoveries 25 740 551 264 193 1,477 173 3,423 Net (charge-offs) recoveries ( 48 ) 603 196 21 15 ( 213 ) ( 603 ) ( 29 ) Balance at June 30, 2022 Allowance for credit 8,107 59,557 28,168 14,931 777 4,304 1,559 117,403 Allowance for credit 4,876 — 209 2,158 63 412 — 7,718 Total ending allowance for credit $ 12,983 $ 59,557 $ 28,377 $ 17,089 $ 840 $ 4,716 $ 1,559 $ 125,121 (1) Deposit overdrafts of $ 4.5 million and $ 11.3 million are included in total portfolio loans for the periods ending June 30, 2023 and June 30, 2022, 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 Footnote 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, 2023 Allowance for credit losses: Loans individually-evaluated $ — $ 2,125 $ — $ — $ — $ — $ — $ 2,125 Loans collectively-evaluated 5,798 50,826 32,137 20,315 4,420 3,450 1,095 118,041 Loan commitments (2) 7,193 182 527 1,594 628 — — 10,124 Total allowance for credit $ 12,991 $ 53,133 $ 32,664 $ 21,909 $ 5,048 $ 3,450 $ 1,095 $ 130,290 Portfolio loans: Individually-evaluated for credit $ — $ 28,107 $ 242 $ — $ — $ — $ — $ 28,349 Collectively-evaluated for credit 829,744 5,437,616 1,558,249 2,341,928 701,824 232,254 — 11,101,615 Total portfolio loans $ 829,744 $ 5,465,723 $ 1,558,491 $ 2,341,928 $ 701,824 $ 232,254 $ — $ 11,129,964 December 31, 2022 Allowance for credit losses: Loans individually-evaluated $ — $ 2,988 $ 130 $ — $ — $ — $ — $ 3,118 Loans collectively-evaluated 6,737 49,671 31,410 18,208 4,234 3,127 1,285 114,672 Loan commitments (2) 6,025 — — 2,215 128 — — 8,368 Total allowance for credit $ 12,762 $ 52,659 $ 31,540 $ 20,423 $ 4,362 $ 3,127 $ 1,285 $ 126,158 Portfolio loans: Individually-evaluated for credit $ 24,629 $ 25,369 $ 401 $ — $ — $ — $ — $ 50,399 Collectively-evaluated for credit 919,258 5,092,088 1,578,994 2,140,584 695,065 226,340 — 10,652,329 Total portfolio loans $ 943,887 $ 5,117,457 $ 1,579,395 $ 2,140,584 $ 695,065 $ 226,340 $ — $ 10,702,728 (1) Deposit overdrafts of $ 4.5 million and $ 4.4 million are included in total portfolio loans for the periods ending June 30, 2023 and December 31, 2022, respectively. (2) For additional detail relating to loan commitments, see Footnote 10, "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, 2023 Pass $ 820,779 $ 5,340,591 $ 1,505,781 $ 7,667,151 Criticized - compromised 2,954 70,896 45,921 119,771 Classified - substandard 6,011 54,236 6,789 67,036 Classified - doubtful — — — — Total $ 829,744 $ 5,465,723 $ 1,558,491 $ 7,853,958 As of December 31, 2022 Pass $ 911,804 $ 4,940,135 $ 1,538,300 $ 7,390,239 Criticized - compromised 1,329 121,393 25,223 147,945 Classified - substandard 30,754 55,929 15,872 102,555 Classified - doubtful — — — — Total $ 943,887 $ 5,117,457 $ 1,579,395 $ 7,640,739
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, 2023 Commercial real estate: Land and construction $ 829,744 $ — $ — $ — $ — $ 829,744 $ — Improved property 5,446,988 260 6,761 11,714 18,735 5,465,723 1,235 Total commercial real estate 6,276,732 260 6,761 11,714 18,735 6,295,467 1,235 Commercial and industrial 1,554,606 749 422 2,714 3,885 1,558,491 537 Residential real estate 2,333,554 591 2,287 5,496 8,374 2,341,928 1,301 Home equity 692,980 3,039 1,167 4,638 8,844 701,824 1,655 Consumer 227,778 3,098 912 466 4,476 232,254 419 Total portfolio loans 11,085,650 7,737 11,549 25,028 44,314 11,129,964 5,147 Loans held for sale 28,970 — — — — 28,970 — Total loans $ 11,114,620 $ 7,737 $ 11,549 $ 25,028 $ 44,314 $ 11,158,934 $ 5,147 Nonperforming loans included above are as follows: Non-accrual loans $ 10,736 $ 285 $ 653 $ 19,881 $ 20,819 $ 31,555 As of December 31, 2022 Commercial real estate: Land and construction $ 942,236 $ — $ 910 $ 741 $ 1,651 $ 943,887 $ 629 Improved property 5,099,342 2,147 331 15,637 18,115 5,117,457 84 Total commercial real estate 6,041,578 2,147 1,241 16,378 19,766 6,061,344 713 Commercial and industrial 1,574,311 1,427 519 3,138 5,084 1,579,395 1,586 Residential real estate 2,129,095 853 3,536 7,100 11,489 2,140,584 1,551 Home equity 686,762 3,885 621 3,797 8,303 695,065 1,063 Consumer 222,153 2,910 704 573 4,187 226,340 530 Total portfolio loans 10,653,899 11,222 6,621 30,986 48,829 10,702,728 5,443 Loans held for sale 8,249 — — — — 8,249 — Total loans $ 10,662,148 $ 11,222 $ 6,621 $ 30,986 $ 48,829 $ 10,710,977 $ 5,443 Nonperforming loans included above are as follows: Non-accrual loans $ 10,337 $ 1,495 $ 870 $ 25,483 $ 27,848 $ 38,185 TDRs accruing interest 3,131 7 32 60 99 3,230 Total nonperforming loans $ 13,468 $ 1,502 $ 902 $ 25,543 $ 27,947 $ 41,415 (1) For the table presented as of December 31, 2022 , loans 90 days or more past due and accruing interest exclude TDRs 90 days or more past due and accruing interest.
Summary of Nonperforming Loans	The following tables summarize nonperforming loans: Nonperforming Loans June 30, 2023 December 31, 2022 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 $ — $ — $ — $ 112 $ 112 $ — Improved property 12,958 11,196 — 18,367 16,601 — Commercial and industrial 2,894 2,350 — 4,102 3,112 — Residential real estate 17,308 12,650 — 21,084 16,057 — Home equity 6,901 5,261 — 6,970 5,374 — Consumer 175 98 — 316 159 — Total nonperforming loans without a specific allowance 40,236 31,555 — 50,951 41,415 — Total nonperforming loans with a specific allowance — — — — — — Total nonperforming loans $ 40,236 $ 31,555 $ — $ 50,951 $ 41,415 $ — (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, 2023 June 30, 2022 June 30, 2023 June 30, 2022 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 $ — $ — $ 105 $ 1 $ 37 $ — $ 94 $ 2 Improved property 14,698 — 7,595 6 15,332 — 7,750 14 Commercial and industrial 2,780 — 4,631 — 2,890 — 4,831 3 Residential real estate 12,744 — 18,149 36 13,848 — 18,728 72 Home equity 5,061 — 5,411 3 5,165 — 5,396 6 Consumer 104 — 464 1 122 — 496 2 Total nonperforming loans without a specific allowance 35,386 — 36,354 47 37,394 — 37,295 99 With a specific allowance recorded: Commercial real estate: Land and construction — — — — — — — — Improved property — — — — — — — — Total nonperforming loans with a specific allowance — — — — — — — — Total nonperforming loans $ 35,386 $ — $ 36,354 $ 47 $ 37,394 $ — $ 37,295 $ 99
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) 2023 2022 Commercial real estate: Land and construction $ — $ 112 Improved property 11,196 16,254 Total commercial real estate 11,196 16,366 Commercial and industrial 2,350 2,946 Residential real estate 12,650 13,695 Home equity 5,261 5,044 Consumer 98 134 Total $ 31,555 $ 38,185 (1) At June 30, 2023 , there were three borrowers with a loan balance greater than $ 1.0 million, which totaled $ 8.3 million, as compared to three borrowers with a loan balance greater than $ 1.0 million totaling $ 11.8 million at December 31, 2022 . Total non-accrual loans include loans that are also restructured for borrowers experiencing financial difficulty or were previously designated as TDRs prior to the adoption of ASU 2022-02. 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, 2023 presented by loan category: For the Three Months Ended June 30, 2023 (unaudited, in thousands) Term Payment Total % 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, 2023 (unaudited, in thousands) Term Payment Total % 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 0.0 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 $ 3.5 million at June 30, 2023 . These commitments are not included in the table 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, 2023, presented by loan category: For the Three Months Ended June 30, 2023 (unaudited, in thousands) Weighted-Average Commercial real estate - land and construction 12 Commercial real estate - improved property 9 Commercial and industrial 8 Residential real estate — Home equity — Consumer — For the Six Months Ended June 30, 2023 (unaudited, in thousands) Weighted-Average Commercial real estate - land and construction 4 Commercial real estate - improved property 22 Commercial and industrial 9 Residential real estate — Home equity 120 Consumer —
Summary of Aging Analysis of Portfolio Loans Restructured	The following table presents an aging analysis of portfolio loans that were modified on or after January 1, 2023, the date that Wesbanco adopted ASU 2022-02, by loan category, as of June 30, 2023: 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.
Loans Identified as TDRs	The following table presents details related to loans identified as TDRs during the three and six months ended June 30, 2022: New TDRs (1) For the Three Months Ended June 30, 2022 Pre- Post- Modification Modification Outstanding Outstanding Number of Recorded Recorded (unaudited, dollars in thousands) Modifications Investment Investment Commercial real estate: Land and construction — $ — $ — Improved property 1 186 184 Total commercial real estate 1 186 184 Commercial and industrial — — — Residential real estate — — — Home equity — — — Consumer — — — Total 1 $ 186 $ 184 New TDRs (1) For the Six Months Ended June 30, 2022 Pre- Post- Modification Modification Outstanding Outstanding Number of Recorded Recorded (unaudited, dollars in thousands) Modifications Investment Investment Commercial real estate: Land and construction 1 $ 84 $ 54 Improved property 1 189 184 Total commercial real estate 2 273 238 Commercial and industrial — — — Residential real estate — — — Home equity — — — Consumer — — — Total 2 $ 273 $ 238 (1) Excludes loans that were either paid off or charged-off by period end. The pre-modification balance represents the balance outstanding at the beginning of the period. The post-modification balance represents the outstanding 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, 2023 Amortized Cost Basis by Origination Year (unaudited, 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 $ 96,806 $ 234,122 $ 139,586 $ 51,797 $ 50,568 $ 42,964 $ 135,538 $ 69,398 $ 820,779 Criticized - compromised — — 260 — — 20 — 2,674 2,954 Classified - substandard — — — — — 11 — 6,000 6,011 Classified - doubtful — — — — — — — — — Total $ 96,806 $ 234,122 $ 139,846 $ 51,797 $ 50,568 $ 42,995 $ 135,538 $ 78,072 $ 829,744 Current-period gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ 222 $ 222 Commercial real estate: improved property Risk rating: Pass $ 288,153 $ 1,095,462 $ 612,900 $ 605,147 $ 572,255 $ 1,883,067 $ 74,855 $ 208,752 $ 5,340,591 Criticized - compromised — 858 1,677 5,107 3,898 58,364 992 — 70,896 Classified - substandard — 515 416 714 13,397 24,612 137 14,445 54,236 Classified - doubtful — — — — — — — — — Total $ 288,153 $ 1,096,835 $ 614,993 $ 610,968 $ 589,550 $ 1,966,043 $ 75,984 $ 223,197 $ 5,465,723 Current-period gross charge-offs $ — $ — $ — $ — $ — $ 1,381 $ — $ — $ 1,381 Commercial and industrial Risk rating: Pass $ 118,188 $ 256,690 $ 165,711 $ 100,007 $ 48,413 $ 289,745 $ 487,460 $ 39,567 $ 1,505,781 Criticized - compromised 1,077 497 1,350 330 7,109 18,315 10,562 6,681 45,921 Classified - substandard 50 215 94 88 1,253 2,184 1,478 1,427 6,789 Classified - doubtful — — — — — — — — — Total $ 119,315 $ 257,402 $ 167,155 $ 100,425 $ 56,775 $ 310,244 $ 499,500 $ 47,675 $ 1,558,491 Current-period gross charge-offs $ 48 $ 86 $ 404 $ 43 $ — $ 211 $ — $ 207 $ 999 Residential real estate Loan delinquency: Current $ 161,338 $ 536,141 $ 484,264 $ 192,707 $ 91,106 $ 493,384 $ — $ 374,614 $ 2,333,554 30-59 days past due — — — — — 591 — — 591 60-89 days past due — — 188 — — 2,099 — — 2,287 90 days or more past due — — — — 843 4,618 — 35 5,496 Total $ 161,338 $ 536,141 $ 484,452 $ 192,707 $ 91,949 $ 500,692 $ — $ 374,649 $ 2,341,928 Current-period gross charge-offs $ — $ — $ — $ — $ 5 $ ( 12 ) $ — $ — $ ( 7 ) Home equity Loan delinquency: Current $ 11,595 $ 806 $ 1,871 $ 1,539 $ 1,747 $ 25,019 $ 649,356 $ 1,047 $ 692,980 30-59 days past due — 58 — 252 269 555 1,905 — 3,039 60-89 days past due — — 15 101 41 1,010 — — 1,167 90 days or more past due — 305 110 595 286 2,921 — 421 4,638 Total $ 11,595 $ 1,169 $ 1,996 $ 2,487 $ 2,343 $ 29,505 $ 651,261 $ 1,468 $ 701,824 Current-period gross charge-offs $ — $ 3 $ — $ — $ 11 $ 295 $ 6 $ — $ 315 Consumer Loan delinquency: Current $ 53,436 $ 69,969 $ 28,595 $ 18,303 $ 17,244 $ 16,699 $ 23,530 $ 2 $ 227,778 30-59 days past due 173 1,364 659 419 65 391 27 — 3,098 60-89 days past due — 467 303 57 32 53 — — 912 90 days or more past due — 98 94 136 4 134 — — 466 Total $ 53,609 $ 71,898 $ 29,651 $ 18,915 $ 17,345 $ 17,277 $ 23,557 $ 2 $ 232,254 Current-period gross charge-offs $ — $ 814 $ 510 $ 98 $ 49 $ 130 $ — $ — $ 1,601 Loans As of December 31, 2022 Amortized Cost Basis by Origination Year (unaudited, in thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Amortized Cost Basis Revolving Loans Converted to Term Total Commercial real estate: land and construction Risk rating: Pass $ 159,769 $ 136,131 $ 138,171 $ 155,141 $ 61,823 $ 51,381 $ 117,237 $ 92,151 $ 911,804 Criticized - compromised 559 265 — — 24 31 — 450 1,329 Classified - substandard — — 6,001 — — 124 — 24,629 30,754 Classified - doubtful — — — — — — — — — Total $ 160,328 $ 136,396 $ 144,172 $ 155,141 $ 61,847 $ 51,536 $ 117,237 $ 117,230 $ 943,887 Current-period gross charge-offs $ — $ — $ — $ — $ 73 $ — $ — $ — $ 73 Commercial real estate: improved property Risk rating: Pass $ 1,082,984 $ 620,205 $ 613,663 $ 528,004 $ 371,880 $ 1,551,478 $ 72,327 $ 99,594 $ 4,940,135 Criticized - compromised 10,554 354 2,877 7,659 13,551 85,332 1,066 — 121,393 Classified - substandard — 658 275 15,489 9,761 29,712 34 — 55,929 Classified - doubtful — — — — — — — — — Total $ 1,093,538 $ 621,217 $ 616,815 $ 551,152 $ 395,192 $ 1,666,522 $ 73,427 $ 99,594 $ 5,117,457 Current-period gross charge-offs $ — $ — $ 128 $ 100 $ 3 $ 564 $ — $ — $ 795 Commercial and industrial Risk rating: Pass $ 280,510 $ 184,805 $ 116,890 $ 72,142 $ 103,660 $ 232,062 $ 526,025 $ 22,206 $ 1,538,300 Criticized - compromised 917 1,192 270 8,278 264 2,524 7,654 4,124 25,223 Classified - substandard 93 3,209 976 2,157 97 2,854 1,066 5,420 15,872 Classified - doubtful — — — — — — — — — Total $ 281,520 $ 189,206 $ 118,136 $ 82,577 $ 104,021 $ 237,440 $ 534,745 $ 31,750 $ 1,579,395 Current-period gross charge-offs $ — $ 16 $ 234 $ 275 $ 70 $ 182 $ — $ 291 $ 1,068 Residential real estate Loan delinquency: Current $ 541,659 $ 556,928 $ 211,496 $ 97,160 $ 52,135 $ 478,977 $ — $ 190,740 $ 2,129,095 30-59 days past due — — — — — 853 — — 853 60-89 days past due — 442 349 65 — 2,680 — — 3,536 90 days or more past due — — — 285 119 6,654 — 42 7,100 Total $ 541,659 $ 557,370 $ 211,845 $ 97,510 $ 52,254 $ 489,164 $ — $ 190,782 $ 2,140,584 Current-period gross charge-offs $ — $ — $ — $ — $ 6 $ 494 $ — $ — $ 500 Home equity Loan delinquency: Current $ 10,718 $ 1,459 $ 1,133 $ 1,774 $ 1,088 $ 25,203 $ 644,430 $ 957 $ 686,762 30-59 days past due 80 61 180 67 34 1,165 2,260 38 3,885 60-89 days past due — 15 — 50 88 458 — 10 621 90 days or more past due — — 572 93 257 2,425 16 434 3,797 Total $ 10,798 $ 1,535 $ 1,885 $ 1,984 $ 1,467 $ 29,251 $ 646,706 $ 1,439 $ 695,065 Current-period gross charge-offs $ — $ — $ — $ — $ — $ 310 $ — $ 48 $ 358 Consumer Loan delinquency: Current $ 84,817 $ 36,123 $ 25,071 $ 25,535 $ 8,488 $ 16,337 $ 25,755 $ 27 $ 222,153 30-59 days past due 980 937 488 159 98 217 31 — 2,910 60-89 days past due 184 293 94 47 29 57 — — 704 90 days or more past due 183 208 69 32 2 79 — — 573 Total $ 86,164 $ 37,561 $ 25,722 $ 25,773 $ 8,617 $ 16,690 $ 25,786 $ 27 $ 226,340 Current-period gross charge-offs $ 769 $ 1,237 $ 624 $ 333 $ 186 $ 326 $ — $ 1 $ 3,476
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) 2023 2022 Other real estate owned $ 1,289 $ 1,397 Repossessed assets 143 89 Total other real estate owned and repossessed assets $ 1,432 $ 1,486

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2023
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, 2023 and December 31, 2022: June 30, 2023 December 31, 2022 (unaudited, in thousands) Notional or Asset Liability Notional or Asset Liability Derivatives Loan Swaps: Interest rate swaps and caps $ 1,243,199 $ 77,753 $ 77,458 $ 936,834 $ 75,840 $ 74,683 Other contracts: Interest rate lock commitments 33,293 — 171 10,071 — 43 Forward TBA contracts 51,000 322 — 14,500 53 — Total derivatives $ 78,075 $ 77,629 $ 75,893 $ 74,726
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, 2023 and 2022, respectively. For the Three Months For the Six Months (unaudited, in thousands) Location of Gain/(Loss) 2023 2022 2023 2022 Interest rate swaps and caps Other income $ 176 $ 1,142 $ ( 863 ) $ 2,603 Interest rate lock commitments Mortgage banking income ( 315 ) 362 ( 128 ) 44 Forward TBA contracts Mortgage banking income 637 605 448 2,048 Total $ 498 $ 2,109 $ ( 543 ) $ 4,695

Benefit Plans (Tables)

Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2023
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) 2023 2022 2023 2022 Service cost – benefits earned during year $ 354 $ 546 $ 704 $ 1,086 Interest cost on projected benefit obligation 1,572 1,026 3,126 2,039 Expected return on plan assets ( 2,781 ) ( 2,885 ) ( 5,531 ) ( 5,738 ) Amortization of prior service cost ( 9 ) ( 9 ) ( 18 ) ( 17 ) Amortization of net loss 225 126 448 251 Net periodic pension income $ ( 639 ) $ ( 1,196 ) $ ( 1,271 ) $ ( 2,379 )

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	6 Months Ended
	Jun. 30, 2023
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, 2023 and December 31, 2022: June 30, 2023 Fair Value Measurements Using: June 30, Quoted Prices in Significant Significant (unaudited, in thousands) 2023 (level 1) (level 2) (level 3) Recurring fair value measurements Equity securities $ 11,948 $ 11,948 $ — $ — Available-for-sale debt securities U.S. Government sponsored entities and agencies 211,951 — 211,951 — Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 1,721,887 — 1,721,887 — Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 305,242 — 305,242 — Obligations of states and political subdivisions 78,431 — 77,254 1,177 Corporate debt securities 11,711 — 11,711 — Total available-for-sale debt securities $ 2,329,222 $ — $ 2,328,045 $ 1,177 Loans held for sale 28,970 — 28,970 — Other assets - interest rate swaps 77,753 — 77,753 — Total assets recurring fair value measurements $ 2,447,893 $ 11,948 $ 2,434,768 $ 1,177 Other liabilities - interest rate swaps $ 77,458 $ — $ 77,458 $ — Total liabilities recurring fair value measurements $ 77,458 $ — $ 77,458 $ — Nonrecurring fair value measurements Collateral dependent loans $ 941 $ — $ — $ 941 Other real estate owned and repossessed assets 1,432 — — 1,432 Total nonrecurring fair value measurements $ 2,373 $ — $ — $ 2,373 December 31, 2022 Fair Value Measurements Using: December 31, Quoted Prices in Significant Significant (in thousands) 2022 (level 1) (level 2) (level 3) Recurring fair value measurements Equity securities $ 11,506 $ 11,506 $ — $ — Available-for-sale debt securities U.S. Government sponsored entities and agencies 225,970 — 225,970 — Residential mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 1,846,053 — 1,846,053 — Commercial mortgage-backed securities and collateralized mortgage obligations of government sponsored entities and agencies 349,731 — 349,731 — Obligations of states and political subdivisions 92,228 — 91,049 1,179 Corporate debt securities 15,158 — 15,158 — Total available-for-sale debt securities $ 2,529,140 $ — $ 2,527,961 $ 1,179 Loans held for sale 8,249 — 8,249 — Other assets - interest rate swaps 75,840 — 75,840 — Total assets recurring fair value measurements $ 2,624,735 $ 11,506 $ 2,612,050 $ 1,179 Other liabilities - interest rate swaps $ 74,683 $ — $ 74,683 $ — Total liabilities recurring fair value measurements $ 74,683 $ — $ 74,683 $ — Nonrecurring fair value measurements Collateral dependent loans $ 878 $ — $ — $ 878 Other real estate owned and repossessed assets 1,486 — — 1,486 Total nonrecurring fair value measurements $ 2,364 $ — $ — $ 2,364
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, 2023 Collateral dependent loans $ 941 Appraisal of collateral (1) Appraisal adjustments (2) ( 0.0 %)/( 0.0 %) Liquidation expenses (2) ( 3.7 %)/( 3.7 %) Other real estate owned and repossessed assets $ 1,432 Appraisal of collateral (1), (3) December 31, 2022 Collateral dependent loans $ 878 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 $ 1,486 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, 2023 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 $ 562,318 $ 562,318 $ 562,318 $ — $ — Equity securities 11,948 11,948 11,948 — — Available-for-sale debt securities 2,329,222 2,329,222 — 2,328,045 1,177 Net held-to-maturity debt securities 1,224,277 1,072,229 — 1,071,938 291 Net loans 11,009,798 10,931,441 — — 10,931,441 Loans held for sale 28,970 28,970 — 28,970 — Other assets - interest rate swaps 77,753 77,753 — 77,753 — Accrued interest receivable 69,773 69,773 69,773 — — Financial Liabilities Deposits 12,861,434 12,855,884 11,901,327 954,557 — Federal Home Loan Bank borrowings 1,380,000 1,377,968 — 1,377,968 — Other borrowings 101,286 95,095 95,095 — — Subordinated debt and junior subordinated debt 281,854 245,460 — 245,460 — Other liabilities - interest rate swaps 77,458 77,458 — 77,458 — Accrued interest payable 8,869 8,869 8,869 — — Fair Value Measurements at December 31, 2022 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 $ 408,411 $ 408,411 $ 408,411 $ — $ — Equity securities 11,506 11,506 11,506 — — Available-for-sale debt securities 2,529,140 2,529,140 — 2,527,961 1,179 Net held-to-maturity debt securities 1,248,409 1,084,390 — 1,084,071 319 Net loans 10,584,938 9,487,038 — — 9,487,038 Loans held for sale 8,249 8,249 — 8,249 — Other assets - interest rate swaps 75,840 75,840 — 75,840 — Accrued interest receivable 68,522 68,522 68,522 — — Financial Liabilities Deposits 13,131,090 13,142,943 12,245,272 897,671 — Federal Home Loan Bank borrowings 705,000 705,094 — 705,094 — Other borrowings 135,069 122,926 122,926 — — Subordinated debt and junior subordinated debt 281,404 258,631 — 258,631 — Other liabilities - interest rate swaps 74,683 74,683 — 74,683 — Accrued interest payable 4,593 4,593 4,593 — —

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2023
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, 2023 and 2022, respectively: Point of Revenue For the Three Months For the Six Months (unaudited, in thousands) Recognition 2023 2022 2023 2022 Revenue Streams Trust fees Trust account fees Over time $ 5,009 $ 4,416 $ 10,614 $ 9,958 WesMark fees Over time 1,909 2,111 3,798 4,404 Total trust fees 6,918 6,527 14,412 14,362 Service charges on deposits Commercial banking fees Over time 650 602 1,259 1,170 Personal service charges At a point in time and over time 5,582 5,885 11,142 11,407 Total service charges on deposits 6,232 6,487 12,401 12,577 Net securities brokerage revenue Annuity commissions At a point in time 1,840 1,679 3,885 3,261 Equity and debt security trades At a point in time 149 8 149 65 Managed money Over time 284 327 567 654 Trail commissions Over time 250 244 497 498 Total net securities brokerage revenue 2,523 2,258 5,098 4,478 Payment processing fees (1) At a point in time and over time 951 877 1,822 1,618 Electronic banking fees At a point in time 5,010 5,154 9,615 10,499 Mortgage banking income At a point in time 601 1,328 1,027 3,251 Net gain (loss) on other real estate owned and other assets (2) At a point in time and over time 871 ( 1,302 ) 1,104 ( 2,108 ) (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 investments funded by Wesbanco CDC is not within the scope of ASC 606. There were no gains or losses recorded in the current period; however, losses of $ 1.4 million were recorded for the three months ended June 30, 2022, and losses of $ 2.6 million were recorded for the six months ended June 30, 2022.

Comprehensive Income_(Loss) (Ta

Comprehensive Income/(Loss) (Tables)	6 Months Ended
	Jun. 30, 2023
Equity [Abstract]
Components of Accumulated Other Comprehensive Income (Loss)	The activity in accumulated other comprehensive income/(loss) for the six months ended June 30, 2023 and 2022 is as follows: Accumulated Other Comprehensive Income/(Loss) (1) (unaudited, in thousands) Defined Unrealized Total 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 loss 150 120 270 Period change 150 ( 2,361 ) ( 2,211 ) Balance at June 30, 2023 $ ( 385 ) $ ( 264,242 ) $ ( 264,627 ) Balance at December 31, 2021 $ ( 398 ) $ ( 4,722 ) $ ( 5,120 ) Other comprehensive loss before reclassifications — ( 171,058 ) ( 171,058 ) Amounts reclassified from accumulated other comprehensive loss 109 8 117 Period change 109 ( 171,050 ) ( 170,941 ) Balance at June 30, 2022 $ ( 289 ) $ ( 175,772 ) $ ( 176,061 ) (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, 2023 and 2022: Details about Accumulated Other Comprehensive For the Three Months For the Six Months Affected Line Item in the Statement (unaudited, in thousands) 2023 2022 2023 2022 Debt securities available-for-sale (1) : Net securities losses reclassified into earnings $ 8 $ 9 $ 159 $ 10 Net securities gains/(losses) (Non-interest income) Related income tax effect ⁽²⁾ ( 2 ) ( 2 ) ( 39 ) ( 2 ) Provision for income taxes Net effect on accumulated other comprehensive 6 7 120 8 Defined benefit plans (3) : Amortization of net loss and prior service costs 99 73 198 144 Employee benefits (Non-interest expense) Related income tax effect ⁽²⁾ ( 24 ) ( 18 ) ( 48 ) ( 35 ) Provision for income taxes Net effect on accumulated other comprehensive 75 55 150 109 Total reclassifications for the period $ 81 $ 62 $ 270 $ 117 (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 6, “Benefit Plans” for additional detail.

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	6 Months Ended
	Jun. 30, 2023
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) 2023 2022 Lines of credit $ 4,204,247 $ 3,806,398 Loans approved but not closed 466,599 398,204 Overdraft limits 389,271 380,143 Letters of credit 33,991 30,362 Contingent obligations and other guarantees 23,002 30,782

Business Segments (Tables)

Business Segments (Tables)	6 Months Ended
	Jun. 30, 2023
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, 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 Three Months Ended June 30, 2022 Interest and dividend income $ 118,447 $ — $ 118,447 Interest expense 6,219 — 6,219 Net interest income 112,228 — 112,228 Provision for credit losses ( 812 ) — ( 812 ) Net interest income after provision for credit losses 113,040 — 113,040 Non-interest income 20,456 6,527 26,983 Non-interest expense 83,112 3,907 87,019 Income before provision for income taxes 50,384 2,620 53,004 Provision for income taxes 9,706 550 10,256 Net income 40,678 2,070 42,748 Preferred stock dividends 2,531 — 2,531 Net income available to common shareholders $ 38,147 $ 2,070 $ 40,217 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 For the Six Months Ended June 30, 2022 Interest and dividend income $ 230,621 $ — $ 230,621 Interest expense 10,683 — 10,683 Net interest income 219,938 — 219,938 Provision for credit losses ( 4,250 ) — ( 4,250 ) Net interest income after provision for credit losses 224,188 — 224,188 Non-interest income 43,003 14,362 57,365 Non-interest expense 166,339 8,230 174,569 Income before provision for income taxes 100,852 6,132 106,984 Provision for income taxes 18,826 1,288 20,114 Net income 82,026 4,844 86,870 Preferred stock dividends 5,063 — 5,063 Net income available to common shareholders $ 76,963 $ 4,844 $ 81,807

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Details)	Jun. 30, 2023
ASU 2022-02 Financial Instruments - Credit Losses (Topic 326)
Summary Of Significant Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2023

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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Numerator for both basic and diluted earnings per common share:
Net income available to common shareholders	$ 42,349	$ 40,217	$ 82,158	$ 81,807
Denominator:
Total average basic common shares outstanding	59,263,949	60,036,103	59,240,958	60,736,858
Effect of dilutive stock options and other stock compensation	121,898	149,104	148,356	162,412
Total diluted average common shares outstanding	59,385,847	60,185,207	59,389,314	60,899,270
Earnings per common share - basic	$ 0.71	$ 0.67	$ 1.39	$ 1.35
Earnings per common share - diluted	$ 0.71	$ 0.67	$ 1.38	$ 1.34

Earnings Per Common Share - Add

Earnings Per Common Share - Additional Information (Detail) - shares	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Schedule Of Antidilutive Securities Included In Computation Of Earnings Per Share [Line Items]
Shares contingently issuable under shareholder return plan	37,296	34,656
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	603,767	524,211
Restricted Stock [Member]
Schedule Of Antidilutive Securities Included In Computation Of Earnings Per Share [Line Items]
Shares contingently issuable under shareholder return plan	68,767	62,314
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, 2023	Dec. 31, 2022
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	$ 2,678,107	$ 2,874,776
Available-for-sale, Gross Unrealized Gains	130	271
Available-for-sale, Gross Unrealized Losses	(349,015)	(345,907)
Available-for-sale, Fair Value	2,329,222	2,529,140
Held-to-maturity, Amortized Cost	1,224,470	1,248,629
Held-to-maturity, Gross Unrealized Gains	354	577
Held-to-maturity, Gross Unrealized Losses	(152,595)	(164,816)
Held-to-maturity securities, Fair value	1,072,229	1,084,390
Total securities, Amortized Cost	3,902,577	4,123,405
Total securities, Gross Unrealized Gains	484	848
Total securities, Gross Unrealized Losses	(501,610)	(510,723)
Total securities, Fair Value	3,401,451	3,613,530
U.S. Government Sponsored Entities and Agencies [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	246,526	259,418
Available-for-sale, Gross Unrealized Gains		2
Available-for-sale, Gross Unrealized Losses	(34,575)	(33,450)
Available-for-sale, Fair Value	211,951	225,970
Held-to-maturity, Amortized Cost	3,887	4,357
Held-to-maturity, Gross Unrealized Losses	(404)	(416)
Held-to-maturity securities, Fair value	3,483	3,941
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	2,023,958	2,144,015
Available-for-sale, Gross Unrealized Gains	17	25
Available-for-sale, Gross Unrealized Losses	(302,088)	(297,987)
Available-for-sale, Fair Value	1,721,887	1,846,053
Held-to-maturity, Amortized Cost	42,371	45,909
Held-to-maturity, Gross Unrealized Losses	(3,796)	(3,809)
Held-to-maturity securities, Fair value	38,575	42,100
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	313,521	359,811
Available-for-sale, Gross Unrealized Losses	(8,279)	(10,080)
Available-for-sale, Fair Value	305,242	349,731
Obligations of State and Political Subdivisions [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	82,146	96,081
Available-for-sale, Gross Unrealized Gains	113	244
Available-for-sale, Gross Unrealized Losses	(3,828)	(4,097)
Available-for-sale, Fair Value	78,431	92,228
Held-to-maturity, Amortized Cost	1,157,889	1,177,986
Held-to-maturity, Gross Unrealized Gains	354	577
Held-to-maturity, Gross Unrealized Losses	(147,762)	(159,975)
Held-to-maturity securities, Fair value	1,010,481	1,018,588
Corporate Debt Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale, Amortized Cost	11,956	15,451
Available-for-sale, Gross Unrealized Losses	(245)	(293)
Available-for-sale, Fair Value	11,711	15,158
Held-to-maturity, Amortized Cost	20,323	20,377
Held-to-maturity, Gross Unrealized Losses	(633)	(616)
Held-to-maturity securities, Fair value	$ 19,690	$ 19,761

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, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Allowance for credit losses, held-to-maturity debt securities	$ 193	$ 220

Securities - Additional Informa

Securities - Additional Information (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($) Holding	Jun. 30, 2022 USD ($)	Dec. 31, 2022 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	$ 11,948		$ 11,506
Other assets	408,737		358,122
Proceeds from sale of available-for-sale securities	28,317	$ 0
Net unrealized losses on available-for-sale securities included in AOCI	264,200		261,800
Accrued interest receivable	69,773		68,522
Federal home loan bank stock, Total	63,200		36,200
Asset Pledged as Security
Schedule Of Available For Sale Securities And Held To Maturity [Line Items]
Other assets	1,900,000		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	9,100		$ 9,500
Grantor Trusts [Member]
Schedule Of Available For Sale Securities And Held To Maturity [Line Items]
Equities securities	$ 9,400

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, 2023	Dec. 31, 2022
Amortized Cost And Fair Value Debt Securities [Abstract]
Total available-for-sale debt securities, Amortized Cost, Within one year	$ 26,813
Total available-for-sale debt securities, Amortized Cost, After 1 year through 5 years	130,304
Total available-for-sale debt securities, Amortized Cost, After 5 years through 10 years	395,725
Total available-for-sale debt securities, Amortized Cost, After 10 years	2,125,265
Available-for-sale, Amortized Cost	2,678,107	$ 2,874,776
Total held-to-maturity debt securities, Amortized Cost, Within one year	18,112
Total held-to-maturity debt securities, Amortized Cost, After 1 year through 5 years	112,213
Total held-to-maturity debt securities, Amortized Cost, After 5 years through 10 years	411,700
Total held-to-maturity debt securities, Amortized Cost, After 10 years	682,445
Held-to-maturity, Amortized Cost	1,224,470	1,248,629
Total debt securities, Amortized Cost	3,902,577
Total available-for-sale debt securities, Fair Value, Within one year	26,470
Total available-for-sale debt securities, Fair Value, After 1 year through 5 years	125,997
Total available-for-sale debt securities, Fair Value, After 5 years through 10 years	374,036
Total available-for-sale debt securities, Fair Value, After 10 years	1,802,719
Total available-for-sale debt securities, Fair Value	2,329,222	2,529,140
Total held-to-maturity debt securities, Fair Value, Within one year	18,003
Total held-to-maturity debt securities, Fair Value, After 1 year through 5 years	110,347
Total held-to-maturity debt securities, Fair Value, After 5 years through 10 years	383,357
Total held-to-maturity debt securities, Fair Value, After 10 years	560,522
Total held-to-maturity debt securities, Fair Value	1,072,229	1,084,390
Total debt securities, Fair Value	$ 3,401,451	$ 3,613,530

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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Securities Gross Realized Gain Loss [Abstract]
Gross realized gains	$ 2	$ 107	$ 65	$ 138
Gross realized losses	(9)	(9)	(206)	(11)
Net (losses) gains on debt securities	(7)	98	(141)	127
Net Unrealized gains (losses) recognized on securities still held	212	(1,281)	491	(1,959)
Net securities gains (losses)	$ 205	$ (1,183)	$ 350	$ (1,832)

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, 2023	Jun. 30, 2022
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items]
Beginning balance	$ 220
Ending balance	193
ASU 2016-13 [Member]
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items]
Beginning balance	220	$ 268
Current period provision	(27)	(3)
Ending balance	193	265
ASU 2016-13 [Member] | Obligations of State and Political Subdivisions [Member]
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items]
Beginning balance	167	174
Current period provision	(12)	8
Ending balance	155	182
ASU 2016-13 [Member] | Corporate Debt Securities [Member]
Debt Securities Heldtomaturity Allowance For Credit Loss [Line Items]
Beginning balance	53	94
Current period provision	(15)	(11)
Ending balance	$ 38	$ 83

Securities - Schedule of Unreal

Securities - Schedule of Unrealized Losses on Investment Securities (Detail) $ in Thousands	Jun. 30, 2023 USD ($) Security	Dec. 31, 2022 USD ($) Security
Net Unrealized Gains And Losses On Investments [Line Items]
Less than 12 months, Fair Value	$ 241,646	$ 887,036
Less than 12 months, Unrealized Losses	$ (12,069)	$ (54,828)
Less than 12 months, Number of Securities | Security	165	498
12 months or more, Fair Value	$ 2,076,253	$ 1,619,473
12 months or more, Unrealized Losses	$ (336,946)	$ (291,079)
12 months or more, Number of Securities | Security	547	264
Fair Value, Total	$ 2,317,899	$ 2,506,509
Unrealized Losses, Total	$ (349,015)	$ (345,907)
Number of Securities Total | Security	712	762
U.S. Government Sponsored Entities and Agencies [Member]
Net Unrealized Gains And Losses On Investments [Line Items]
Less than 12 months, Fair Value	$ 21,031	$ 107,011
Less than 12 months, Unrealized Losses	$ (1,455)	$ (8,435)
Less than 12 months, Number of Securities | Security	14	35
12 months or more, Fair Value	$ 190,885	$ 118,779
12 months or more, Unrealized Losses	$ (33,120)	$ (25,015)
12 months or more, Number of Securities | Security	31	13
Fair Value, Total	$ 211,916	$ 225,790
Unrealized Losses, Total	$ (34,575)	$ (33,450)
Number of Securities Total | Security	45	48
Residential 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	$ 142,697	$ 514,789
Less than 12 months, Unrealized Losses	$ (9,003)	$ (39,246)
Less than 12 months, Number of Securities | Security	66	294
12 months or more, Fair Value	$ 1,577,076	$ 1,328,906
12 months or more, Unrealized Losses	$ (293,085)	$ (258,741)
12 months or more, Number of Securities | Security	414	202
Fair Value, Total	$ 1,719,773	$ 1,843,695
Unrealized Losses, Total	$ (302,088)	$ (297,987)
Number of Securities Total | Security	480	496
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	$ 26,808	$ 190,189
Less than 12 months, Unrealized Losses	$ (373)	$ (5,106)
Less than 12 months, Number of Securities | Security	4	38
12 months or more, Fair Value	$ 278,434	$ 159,543
12 months or more, Unrealized Losses	$ (7,906)	$ (4,974)
12 months or more, Number of Securities | Security	63	36
Fair Value, Total	$ 305,242	$ 349,732
Unrealized Losses, Total	$ (8,279)	$ (10,080)
Number of Securities Total | Security	67	74
Obligations of State and Political Subdivisions [Member]
Net Unrealized Gains And Losses On Investments [Line Items]
Less than 12 months, Fair Value	$ 43,840	$ 67,822
Less than 12 months, Unrealized Losses	$ (1,052)	$ (1,815)
Less than 12 months, Number of Securities | Security	79	128
12 months or more, Fair Value	$ 25,416	$ 7,812
12 months or more, Unrealized Losses	$ (2,776)	$ (2,282)
12 months or more, Number of Securities | Security	35	10
Fair Value, Total	$ 69,256	$ 75,634
Unrealized Losses, Total	$ (3,828)	$ (4,097)
Number of Securities Total | Security	114	138
Corporate Debt Securities [Member]
Net Unrealized Gains And Losses On Investments [Line Items]
Less than 12 months, Fair Value	$ 7,270	$ 7,225
Less than 12 months, Unrealized Losses	$ (186)	$ (226)
Less than 12 months, Number of Securities | Security	2	3
12 months or more, Fair Value	$ 4,442	$ 4,433
12 months or more, Unrealized Losses	$ (59)	$ (67)
12 months or more, Number of Securities | Security	4	3
Fair Value, Total	$ 11,712	$ 11,658
Unrealized Losses, Total	$ (245)	$ (293)
Number of Securities Total | Security	6	6

Loans and the Allowance for C_3

Loans and the Allowance for Credit Losses - Additional Information (Detail)	3 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 Contract	Dec. 31, 2022 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Net deferred loan fee income (costs)	$ (10,300,000)		$ (9,600,000)
Un-accreted discount on purchased loans from acquisitions	15,500,000		18,000,000
Reserve on accrued interest related to CARES Act	$ 100,000
Percentage of national unemployment projection	4%
Expected average percentage of national unemployment in future	4.80%
Accrued interest receivable for loans	$ 54,000,000		51,800,000
Accrued interest receivable for loans related to CARES Act	16,200,000		17,000,000
Aggregate amount of residential real estate, home equity and consumer loans classified as substandard	21,400,000		24,800,000
Internally assigned loan grades to residential real estate, home equity and consumer loans	3,400,000		5,900,000
Unfunded commercial loan commitments	12,100,000		25,000,000
TDRs defaulted | Contract		0
Other real estate owned	1,289,000		1,397,000
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	4,400,000		$ 4,900,000
90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Modifications loans	0
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]
Modifications loans	$ 3,500,000

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, 2023	Dec. 31, 2022
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	$ 11,129,964	$ 10,702,728
Loans held for sale	28,970	8,249
Total loans	11,158,934	10,710,977
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	1,558,491	1,579,395
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	6,295,467	6,061,344
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	829,744	943,887
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	5,465,723	5,117,457
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	2,341,928	2,140,584
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	232,254	226,340
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total portfolio loans	$ 701,824	$ 695,065

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, 2023	Jun. 30, 2022
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	$ 117,790	$ 121,622
Allowance for credit losses - loan commitments, beginning balance	8,368	7,775
Total beginning allowance for credit losses - loans and loan commitments	126,158	129,397
Provision for loan losses	4,876	(4,190)
Provision for loan commitments	1,756	(57)
Total provision for credit losses - loans and loan commitments	6,632	(4,247)
Charge-offs	(5,329)	(3,452)
Recoveries	2,829	3,423
Net (charge-offs) recoveries	(2,500)	(29)
Allowance for credit losses - loans, ending balance	120,166	117,403
Allowance for credit losses - loan commitments, ending balance	10,124	7,718
Total ending allowance for credit losses - loans and loan commitments	130,290	125,121
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	31,540	26,875
Allowance for credit losses - loan commitments, beginning balance		1,497
Total beginning allowance for credit losses - loans and loan commitments	31,540	28,372
Provision for loan losses	1,337	1,097
Provision for loan commitments	527	(1,288)
Total provision for credit losses - loans and loan commitments	1,864	(191)
Charge-offs	(999)	(355)
Recoveries	259	551
Net (charge-offs) recoveries	(740)	196
Allowance for credit losses - loans, ending balance	32,137	28,168
Allowance for credit losses - loan commitments, ending balance	527	209
Total ending allowance for credit losses - loans and loan commitments	32,664	28,377
Deposit Overdrafts [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	1,285	2,220
Total beginning allowance for credit losses - loans and loan commitments	1,285	2,220
Provision for loan losses	407	(58)
Total provision for credit losses - loans and loan commitments	407	(58)
Charge-offs	(818)	(776)
Recoveries	221	173
Net (charge-offs) recoveries	(597)	(603)
Allowance for credit losses - loans, ending balance	1,095	1,559
Total ending allowance for credit losses - loans and loan commitments	1,095	1,559
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	6,737	7,310
Allowance for credit losses - loan commitments, beginning balance	6,025	4,180
Total beginning allowance for credit losses - loans and loan commitments	12,762	11,490
Provision for loan losses	(845)	845
Provision for loan commitments	1,168	696
Total provision for credit losses - loans and loan commitments	323	1,541
Charge-offs	(222)	(73)
Recoveries	128	25
Net (charge-offs) recoveries	(94)	(48)
Allowance for credit losses - loans, ending balance	5,798	8,107
Allowance for credit losses - loan commitments, ending balance	7,193	4,876
Total ending allowance for credit losses - loans and loan commitments	12,991	12,983
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	52,659	65,355
Allowance for credit losses - loan commitments, beginning balance		201
Total beginning allowance for credit losses - loans and loan commitments	52,659	65,556
Provision for loan losses	1,246	(6,401)
Provision for loan commitments	182	(201)
Total provision for credit losses - loans and loan commitments	1,428	(6,602)
Charge-offs	(1,381)	(137)
Recoveries	427	740
Net (charge-offs) recoveries	(954)	603
Allowance for credit losses - loans, ending balance	52,951	59,557
Allowance for credit losses - loan commitments, ending balance	182
Total ending allowance for credit losses - loans and loan commitments	53,133	59,557
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	18,208	15,401
Allowance for credit losses - loan commitments, beginning balance	2,215	1,576
Total beginning allowance for credit losses - loans and loan commitments	20,423	16,977
Provision for loan losses	1,787	(491)
Provision for loan commitments	(621)	582
Total provision for credit losses - loans and loan commitments	1,166	91
Charge-offs	7	(243)
Recoveries	313	264
Net (charge-offs) recoveries	320	21
Allowance for credit losses - loans, ending balance	20,315	14,931
Allowance for credit losses - loan commitments, ending balance	1,594	2,158
Total ending allowance for credit losses - loans and loan commitments	21,909	17,089
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	3,127	3,737
Allowance for credit losses - loan commitments, beginning balance		272
Total beginning allowance for credit losses - loans and loan commitments	3,127	4,009
Provision for loan losses	693	780
Provision for loan commitments		140
Total provision for credit losses - loans and loan commitments	693	920
Charge-offs	(1,601)	(1,690)
Recoveries	1,231	1,477
Net (charge-offs) recoveries	(370)	(213)
Allowance for credit losses - loans, ending balance	3,450	4,304
Allowance for credit losses - loan commitments, ending balance		412
Total ending allowance for credit losses - loans and loan commitments	3,450	4,716
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for credit losses - loans, beginning balance	4,234	724
Allowance for credit losses - loan commitments, beginning balance	128	49
Total beginning allowance for credit losses - loans and loan commitments	4,362	773
Provision for loan losses	251	38
Provision for loan commitments	500	14
Total provision for credit losses - loans and loan commitments	751	52
Charge-offs	(315)	(178)
Recoveries	250	193
Net (charge-offs) recoveries	(65)	15
Allowance for credit losses - loans, ending balance	4,420	777
Allowance for credit losses - loan commitments, ending balance	628	63
Total ending allowance for credit losses - loans and loan commitments	$ 5,048	$ 840

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, 2023	Dec. 31, 2022	Jun. 30, 2022
Receivables [Abstract]
Deposit overdrafts	$ 4.5	$ 4.4	$ 11.3

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, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans individually evaluated for impairment	$ 2,125	$ 3,118
Allowance for loans collectively evaluated for impairment	118,041	114,672
Allowance for loan commitments	10,124	8,368	$ 7,718	$ 7,775
Total allowance for credit losses - loans and commitments	130,290	126,158	125,121	129,397
Individually evaluated for credit loss	28,349	50,399
Collectively-evaluated for credit losses	11,101,615	10,652,329
Total loans	11,129,964	10,702,728
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans individually evaluated for impairment		130
Allowance for loans collectively evaluated for impairment	32,137	31,410
Allowance for loan commitments	527		209	1,497
Total allowance for credit losses - loans and commitments	32,664	31,540	28,377	28,372
Individually evaluated for credit loss	242	401
Collectively-evaluated for credit losses	1,558,249	1,578,994
Total loans	1,558,491	1,579,395
Deposit Overdrafts [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans collectively evaluated for impairment	1,095	1,285
Total allowance for credit losses - loans and commitments	1,095	1,285	1,559	2,220
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	6,295,467	6,061,344
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	5,798	6,737
Allowance for loan commitments	7,193	6,025	4,876	4,180
Total allowance for credit losses - loans and commitments	12,991	12,762	12,983	11,490
Individually evaluated for credit loss		24,629
Collectively-evaluated for credit losses	829,744	919,258
Total loans	829,744	943,887
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	2,125	2,988
Allowance for loans collectively evaluated for impairment	50,826	49,671
Allowance for loan commitments	182			201
Total allowance for credit losses - loans and commitments	53,133	52,659	59,557	65,556
Individually evaluated for credit loss	28,107	25,369
Collectively-evaluated for credit losses	5,437,616	5,092,088
Total loans	5,465,723	5,117,457
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans collectively evaluated for impairment	20,315	18,208
Allowance for loan commitments	1,594	2,215	2,158	1,576
Total allowance for credit losses - loans and commitments	21,909	20,423	17,089	16,977
Collectively-evaluated for credit losses	2,341,928	2,140,584
Total loans	2,341,928	2,140,584
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans collectively evaluated for impairment	3,450	3,127
Allowance for loan commitments			412	272
Total allowance for credit losses - loans and commitments	3,450	3,127	4,716	4,009
Collectively-evaluated for credit losses	232,254	226,340
Total loans	232,254	226,340
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loans collectively evaluated for impairment	4,420	4,234
Allowance for loan commitments	628	128	63	49
Total allowance for credit losses - loans and commitments	5,048	4,362	$ 840	$ 773
Collectively-evaluated for credit losses	701,824	695,065
Total loans	$ 701,824	$ 695,065

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, 2023	Dec. 31, 2022	Jun. 30, 2022
Receivables [Abstract]
Deposit overdrafts	$ 4.5	$ 4.4	$ 11.3

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, 2023	Dec. 31, 2022
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	$ 11,129,964	$ 10,702,728
Commercial Real Estate - Improved Property [Member] | Pass [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	5,340,591
Commercial and Industrial [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,558,491	1,579,395
Commercial and Industrial [Member] | Pass [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,505,781	1,538,300
Commercial and Industrial [Member] | Criticized [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	45,921	25,223
Commercial and Industrial [Member] | Classified - substandard [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	6,789	15,872
Commercial Portfolio Segment [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	7,853,958	7,640,739
Commercial Portfolio Segment [Member] | Pass [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	7,667,151	7,390,239
Commercial Portfolio Segment [Member] | Criticized [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	119,771	147,945
Commercial Portfolio Segment [Member] | Classified - substandard [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	67,036	102,555
Commercial Portfolio Segment [Member] | Commercial Real Estate - Land and Construction [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	829,744	943,887
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	820,779	911,804
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	2,954	1,329
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	6,011	30,754
Commercial Portfolio Segment [Member] | Commercial Real Estate - Improved Property [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	5,465,723	5,117,457
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	5,340,591	4,940,135
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	70,896	121,393
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	54,236	55,929
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,558,491	1,579,395
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Pass [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	1,505,781	1,538,300
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Criticized [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	45,921	25,223
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Classified - substandard [Member]
Summary of commercial loans by risk grade
Portfolio loans, net of unearned income	$ 6,789	$ 15,872

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, 2023	Dec. 31, 2022
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	$ 11,129,964	$ 10,702,728
90 Days or More Past Due and Accruing	5,147	5,443
Loans held for sale	28,970	8,249
Total loans, current	11,114,620	10,662,148
Total loans	11,158,934	10,710,977
Total Non-performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		41,415
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	701,824	695,065
90 Days or More Past Due and Accruing	1,655	1,063
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	6,295,467	6,061,344
90 Days or More Past Due and Accruing	1,235	713
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	2,341,928	2,140,584
90 Days or More Past Due and Accruing	1,301	1,551
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	232,254	226,340
90 Days or More Past Due and Accruing	419	530
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	829,744	943,887
90 Days or More Past Due and Accruing		629
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	5,465,723	5,117,457
90 Days or More Past Due and Accruing	1,235	84
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,558,491	1,579,395
90 Days or More Past Due and Accruing	537	1,586
Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	31,555	38,185
TDRs Accruing Interest [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		3,230
Current [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	11,085,650	10,653,899
Loans held for sale, current	28,970	8,249
Current [Member] | Total Non-performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		13,468
Current [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	692,980	686,762
Current [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	6,276,732	6,041,578
Current [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	2,333,554	2,129,095
Current [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	227,778	222,153
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	829,744	942,236
Current [Member] | Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	5,446,988	5,099,342
Current [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,554,606	1,574,311
Current [Member] | Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	10,736	10,337
Current [Member] | TDRs Accruing Interest [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		3,131
30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	7,737	11,222
30-59 Days Past Due [Member] | Total Non-performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		1,502
30-59 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	3,039	3,885
30-59 Days Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	260	2,147
30-59 Days Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	591	853
30-59 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	3,098	2,910
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	260	2,147
30-59 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	749	1,427
30-59 Days Past Due [Member] | Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	285	1,495
30-59 Days Past Due [Member] | TDRs Accruing Interest [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		7
60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	11,549	6,621
60-89 Days Past Due [Member] | Total Non-performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		902
60-89 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	1,167	621
60-89 Days Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	6,761	1,241
60-89 Days Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	2,287	3,536
60-89 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	912	704
60-89 Days Past Due [Member] | Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		910
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	6,761	331
60-89 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	422	519
60-89 Days Past Due [Member] | Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	653	870
60-89 Days Past Due [Member] | TDRs Accruing Interest [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		32
90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	25,028	30,986
90 Days or More Past Due [Member] | Total Non-performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		25,543
90 Days or More Past Due [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	4,638	3,797
90 Days or More Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	11,714	16,378
90 Days or More Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	5,496	7,100
90 Days or More Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	466	573
90 Days or More Past Due [Member] | Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		741
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	11,714	15,637
90 Days or More Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	2,714	3,138
90 Days or More Past Due [Member] | Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	19,881	25,483
90 Days or More Past Due [Member] | TDRs Accruing Interest [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		60
Total Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	44,314	48,829
Total Past Due [Member] | Total Non-performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		27,947
Total Past Due [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	8,844	8,303
Total Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	18,735	19,766
Total Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	8,374	11,489
Total Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	4,476	4,187
Total Past Due [Member] | Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		1,651
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	18,735	18,115
Total Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	3,885	5,084
Total Past Due [Member] | Non-Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income	$ 20,819	27,848
Total Past Due [Member] | TDRs Accruing Interest [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio loans, net of unearned income		$ 99

Loans and the Allowance for _11

Loans and the Allowance for Credit Losses - Summary of Age Analysis of Loan Categories (Parenthetical) (Detail)	6 Months Ended
	Jun. 30, 2023
Receivables [Abstract]
Past due loans excluded TDRs past due and accruing	90 days

Loans and the Allowance for _12

Loans and the Allowance for Credit Losses - Summary of Nonperforming Loans (Detail) - Nonperforming Loans [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	$ 40,236		$ 40,236		$ 50,951
Recorded Investment, With no specific allowance recorded	31,555		31,555		41,415
Total impaired loans, Unpaid principal balance	40,236		40,236		50,951
Total impaired loans, Recorded investment	31,555		31,555		41,415
Average recorded investment, with no related specific allowance	35,386	$ 36,354	37,394	$ 37,295
Interest income recognized, With no related specific allowance		47		99
Total impaired loans, Average recorded investment	35,386	36,354	37,394	37,295
Total impaired loans, Interest income recognized		47		99
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	17,308		17,308		21,084
Recorded Investment, With no specific allowance recorded	12,650		12,650		16,057
Average recorded investment, with no related specific allowance	12,744	18,149	13,848	18,728
Interest income recognized, With no related specific allowance		36		72
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	175		175		316
Recorded Investment, With no specific allowance recorded	98		98		159
Average recorded investment, with no related specific allowance	104	464	122	496
Interest income recognized, With no related specific allowance		1		2
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	6,901		6,901		6,970
Recorded Investment, With no specific allowance recorded	5,261		5,261		5,374
Average recorded investment, with no related specific allowance	5,061	5,411	5,165	5,396
Interest income recognized, With no related specific allowance		3		6
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded					112
Recorded Investment, With no specific allowance recorded					112
Average recorded investment, with no related specific allowance		105	37	94
Interest income recognized, With no related specific allowance		1		2
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	12,958		12,958		18,367
Recorded Investment, With no specific allowance recorded	11,196		11,196		16,601
Average recorded investment, with no related specific allowance	14,698	7,595	15,332	7,750
Interest income recognized, With no related specific allowance		6		14
Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance, With no specific allowance recorded	2,894		2,894		4,102
Recorded Investment, With no specific allowance recorded	2,350		2,350		$ 3,112
Average recorded investment, with no related specific allowance	$ 2,780	$ 4,631	$ 2,890	4,831
Interest income recognized, With no related specific allowance				$ 3

Loans and the Allowance for _13

Loans and the Allowance for Credit Losses - Recorded Investment in Non-Accrual Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Impaired [Line Items]
Non-accrual loans	$ 31,555	$ 38,185
Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	2,350	2,946
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	5,261	5,044
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	11,196	16,366
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans		112
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	11,196	16,254
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	12,650	13,695
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Non-accrual loans	$ 98	$ 134

Loans and the Allowance for _14

Loans and the Allowance for Credit Losses - Recorded Investment in Non-Accrual Loans (Parenthetical) (Detail) $ in Millions	Jun. 30, 2023 USD ($) Borrower	Dec. 31, 2022 USD ($) Borrower
Receivables [Abstract]
Number of borrowers with loan balance greater than one million | Borrower	3	3
Borrowers with large amount of loans outstanding, minimum amount of loans per borrower	$ 1	$ 1
Borrowers with large amount of loans outstanding, net	$ 8.3	$ 11.8

Loans and the Allowance for _15

Loans and the Allowance for Credit Losses - Summary of Details of Portfolio Loans Modified by Loan Category (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Financing Receivable, Modified [Line Items]
Modification loans		$ 184		$ 238
ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 11,832		$ 24,286
Percentage of total by loan category	0.10%		0.20%
Term Extension [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 10,812		$ 22,872
Payment Delay [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	1,020		1,414
Home Equity [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 483		$ 759
Percentage of total by loan category	0.10%		0.10%
Home Equity [Member] | Term Extension [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans			$ 8
Home Equity [Member] | Payment Delay [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 483		751
Commercial Real Estate [Member]
Financing Receivable, Modified [Line Items]
Modification loans		184		238
Residential Real Estate [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans			$ 100
Percentage of total by loan category			0%
Residential Real Estate [Member] | Payment Delay [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans			$ 100
Consumer [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 267		$ 293
Percentage of total by loan category	0.10%		0.10%
Consumer [Member] | Payment Delay [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 267		$ 293
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified [Line Items]
Modification loans				54
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 448		$ 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] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 448		$ 6,449
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified [Line Items]
Modification loans		$ 184		$ 184
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 4,090		$ 7,375
Percentage of total by loan category	0.10%		0.10%
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Term Extension [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 3,820		$ 7,105
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Payment Delay [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	270		270
Commercial and Industrial [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 6,544		$ 9,310
Percentage of total by loan category	0.40%		0.60%
Commercial and Industrial [Member] | Term Extension [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified [Line Items]
Modification loans	$ 6,544		$ 9,310

Loans and the Allowance for _16

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

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, 2023	Dec. 31, 2022
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	$ 11,129,964	$ 10,702,728
ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	24,286
Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	701,824	695,065
Home Equity [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	758
Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,558,491	1,579,395
Commercial and Industrial [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	9,311
Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,295,467	6,061,344
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	829,744	943,887
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,449
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5,465,723	5,117,457
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	7,375
Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,341,928	2,140,584
Residential Real Estate [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	100
Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	232,254	226,340
Consumer [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	293
30-59 Days Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	7,737	11,222
30-59 Days Past Due [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	161
30-59 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,039	3,885
30-59 Days Past Due [Member] | Home Equity [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	18
30-59 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	749	1,427
30-59 Days Past Due [Member] | Commercial and Industrial [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	143
30-59 Days Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	260	2,147
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	260	2,147
30-59 Days Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	591	853
30-59 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,098	2,910
60-89 Days Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	11,549	6,621
60-89 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,167	621
60-89 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	422	519
60-89 Days Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,761	1,241
60-89 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan		910
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	6,761	331
60-89 Days Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,287	3,536
60-89 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	912	704
90 Days or More Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	25,028	30,986
90 Days or More Past Due [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	362
90 Days or More Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	4,638	3,797
90 Days or More Past Due [Member] | Home Equity [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	72
90 Days or More Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,714	3,138
90 Days or More Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	11,714	16,378
90 Days or More Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan		741
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	11,714	15,637
90 Days or More Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | ASU 2022-02 [Member]
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	5,496	7,100
90 Days or More Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	466	573
90 Days or More Past Due [Member] | Consumer [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	20
Total Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	44,314	48,829
Total Past Due [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	523
Total Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	8,844	8,303
Total Past Due [Member] | Home Equity [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	90
Total Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,885	5,084
Total Past Due [Member] | Commercial and Industrial [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	143
Total Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	18,735	19,766
Total Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan		1,651
Total Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	18,735	18,115
Total Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	270
Total Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	8,374	11,489
Total Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	4,476	4,187
Total Past Due [Member] | Consumer [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	20
Current [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	11,085,650	10,653,899
Current [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	23,763
Current [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	692,980	686,762
Current [Member] | Home Equity [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	668
Current [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,554,606	1,574,311
Current [Member] | Commercial and Industrial [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	9,168
Current [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,276,732	6,041,578
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	829,744	942,236
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,449
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5,446,988	5,099,342
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	7,105
Current [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,333,554	2,129,095
Current [Member] | Residential Real Estate [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	100
Current [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	227,778	$ 222,153
Current [Member] | Consumer [Member] | ASU 2022-02 [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	$ 273

Loans and the Allowance for _18

Loans and the Allowance for Credit Losses - Loans Identified as TDRs (Detail) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022 USD ($) Contract	Jun. 30, 2022 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Number of Modifications | Contract	1	2
Pre-Modification Outstanding Recorded Investment	$ 186	$ 273
Post-Modification Outstanding Recorded Investment	$ 184	$ 238
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications | Contract	1	2
Pre-Modification Outstanding Recorded Investment	$ 186	$ 273
Post-Modification Outstanding Recorded Investment	$ 184	$ 238
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications | Contract		1
Pre-Modification Outstanding Recorded Investment		$ 84
Post-Modification Outstanding Recorded Investment		$ 54
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications | Contract	1	1
Pre-Modification Outstanding Recorded Investment	$ 186	$ 189
Post-Modification Outstanding Recorded Investment	$ 184	$ 184

Loans and the Allowance for _19

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, 2023	Dec. 31, 2022
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ (11,129,964)	$ (10,702,728)
30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(7,737)	(11,222)
60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(11,549)	(6,621)
90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(25,028)	(30,986)
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	11,595	10,798
Amortized Cost Basis by Origination Year 2022	1,169	1,535
Amortized Cost Basis by Origination Year 2021	1,996	1,885
Amortized Cost Basis by Origination Year 2020	2,487	1,984
Amortized Cost Basis by Origination Year 2019	2,343	1,467
Amortized Cost Basis by Origination Year, Prior to 2019	(29,505)	(29,251)
Revolving Loans	651,261	646,706
Revolving Loans Converted to Term	1,468	1,439
Total loans	(701,824)	(695,065)
Home Equity [Member] | Current [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	11,595	10,718
Amortized Cost Basis by Origination Year 2022	806	1,459
Amortized Cost Basis by Origination Year 2021	1,871	1,133
Amortized Cost Basis by Origination Year 2020	1,539	1,774
Amortized Cost Basis by Origination Year 2019	1,747	1,088
Amortized Cost Basis by Origination Year, Prior to 2019	(25,019)	(25,203)
Revolving Loans	649,356	644,430
Revolving Loans Converted to Term	1,047	957
Total loans	(692,980)	(686,762)
Home Equity [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023		80
Amortized Cost Basis by Origination Year 2022	58	61
Amortized Cost Basis by Origination Year 2021		180
Amortized Cost Basis by Origination Year 2020	252	67
Amortized Cost Basis by Origination Year 2019	269	34
Amortized Cost Basis by Origination Year, Prior to 2019	(555)	(1,165)
Revolving Loans	1,905	2,260
Revolving Loans Converted to Term		38
Total loans	(3,039)	(3,885)
Home Equity [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2022		15
Amortized Cost Basis by Origination Year 2021	15
Amortized Cost Basis by Origination Year 2020	101	50
Amortized Cost Basis by Origination Year 2019	41	88
Amortized Cost Basis by Origination Year, Prior to 2019	(1,010)	(458)
Revolving Loans Converted to Term		10
Total loans	(1,167)	(621)
Home Equity [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2022	305
Amortized Cost Basis by Origination Year 2021	110	572
Amortized Cost Basis by Origination Year 2020	595	93
Amortized Cost Basis by Origination Year 2019	286	257
Amortized Cost Basis by Origination Year, Prior to 2019	(2,921)	(2,425)
Revolving Loans		16
Revolving Loans Converted to Term	421	434
Total loans	(4,638)	(3,797)
Home Equity [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2022	3
Amortized Cost Basis by Origination Year 2019	11
Amortized Cost Basis by Origination Year, Prior to 2019	(295)	(310)
Revolving Loans	6
Revolving Loans Converted to Term		48
Total loans	(315)	(358)
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(6,295,467)	(6,061,344)
Commercial Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(260)	(2,147)
Commercial Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(6,761)	(1,241)
Commercial Real Estate [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(11,714)	(16,378)
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	161,338	541,659
Amortized Cost Basis by Origination Year 2022	536,141	557,370
Amortized Cost Basis by Origination Year 2021	484,452	211,845
Amortized Cost Basis by Origination Year 2020	192,707	97,510
Amortized Cost Basis by Origination Year 2019	91,949	52,254
Amortized Cost Basis by Origination Year, Prior to 2019	(500,692)	(489,164)
Revolving Loans Converted to Term	374,649	190,782
Total loans	(2,341,928)	(2,140,584)
Residential Real Estate [Member] | Current [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	161,338	541,659
Amortized Cost Basis by Origination Year 2022	536,141	556,928
Amortized Cost Basis by Origination Year 2021	484,264	211,496
Amortized Cost Basis by Origination Year 2020	192,707	97,160
Amortized Cost Basis by Origination Year 2019	91,106	52,135
Amortized Cost Basis by Origination Year, Prior to 2019	(493,384)	(478,977)
Revolving Loans Converted to Term	374,614	190,740
Total loans	(2,333,554)	(2,129,095)
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	(591)	(853)
Total loans	(591)	(853)
Residential Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2022		442
Amortized Cost Basis by Origination Year 2021	188	349
Amortized Cost Basis by Origination Year 2020		65
Amortized Cost Basis by Origination Year 2019
Amortized Cost Basis by Origination Year, Prior to 2019	(2,099)	(2,680)
Total loans	(2,287)	(3,536)
Residential Real Estate [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2020		285
Amortized Cost Basis by Origination Year 2019	843	119
Amortized Cost Basis by Origination Year, Prior to 2019	(4,618)	(6,654)
Revolving Loans Converted to Term	35	42
Total loans	(5,496)	(7,100)
Residential Real Estate [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2019	5	6
Amortized Cost Basis by Origination Year, Prior to 2019	(12)	(494)
Total loans	(7)	(500)
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	53,609	86,164
Amortized Cost Basis by Origination Year 2022	71,898	37,561
Amortized Cost Basis by Origination Year 2021	29,651	25,722
Amortized Cost Basis by Origination Year 2020	18,915	25,773
Amortized Cost Basis by Origination Year 2019	17,345	8,617
Amortized Cost Basis by Origination Year, Prior to 2019	(17,277)	(16,690)
Revolving Loans	23,557	25,786
Revolving Loans Converted to Term	2	27
Total loans	(232,254)	(226,340)
Consumer [Member] | Current [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	53,436	84,817
Amortized Cost Basis by Origination Year 2022	69,969	36,123
Amortized Cost Basis by Origination Year 2021	28,595	25,071
Amortized Cost Basis by Origination Year 2020	18,303	25,535
Amortized Cost Basis by Origination Year 2019	17,244	8,488
Amortized Cost Basis by Origination Year, Prior to 2019	(16,699)	(16,337)
Revolving Loans	23,530	25,755
Revolving Loans Converted to Term	2	27
Total loans	(227,778)	(222,153)
Consumer [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	173	980
Amortized Cost Basis by Origination Year 2022	1,364	937
Amortized Cost Basis by Origination Year 2021	659	488
Amortized Cost Basis by Origination Year 2020	419	159
Amortized Cost Basis by Origination Year 2019	65	98
Amortized Cost Basis by Origination Year, Prior to 2019	(391)	(217)
Revolving Loans	27	31
Total loans	(3,098)	(2,910)
Consumer [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023		184
Amortized Cost Basis by Origination Year 2022	467	293
Amortized Cost Basis by Origination Year 2021	303	94
Amortized Cost Basis by Origination Year 2020	57	47
Amortized Cost Basis by Origination Year 2019	32	29
Amortized Cost Basis by Origination Year, Prior to 2019	(53)	(57)
Total loans	(912)	(704)
Consumer [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023		183
Amortized Cost Basis by Origination Year 2022	98	208
Amortized Cost Basis by Origination Year 2021	94	69
Amortized Cost Basis by Origination Year 2020	136	32
Amortized Cost Basis by Origination Year 2019	4	2
Amortized Cost Basis by Origination Year, Prior to 2019	(134)	(79)
Total loans	(466)	(573)
Consumer [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023		769
Amortized Cost Basis by Origination Year 2022	814	1,237
Amortized Cost Basis by Origination Year 2021	510	624
Amortized Cost Basis by Origination Year 2020	98	333
Amortized Cost Basis by Origination Year 2019	49	186
Amortized Cost Basis by Origination Year, Prior to 2019	(130)	(326)
Revolving Loans Converted to Term		1
Total loans	(1,601)	(3,476)
Commercial Real Estate - Land and Construction [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Revolving Loans Converted to Term	222
Total loans	(222)
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	96,806	160,328
Amortized Cost Basis by Origination Year 2022	234,122	136,396
Amortized Cost Basis by Origination Year 2021	139,846	144,172
Amortized Cost Basis by Origination Year 2020	51,797	155,141
Amortized Cost Basis by Origination Year 2019	50,568	61,847
Amortized Cost Basis by Origination Year, Prior to 2019	(42,995)	(51,536)
Revolving Loans	135,538	117,237
Revolving Loans Converted to Term	78,072	117,230
Total loans	(829,744)	(943,887)
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		(910)
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		(741)
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 2023	96,806	159,769
Amortized Cost Basis by Origination Year 2022	234,122	136,131
Amortized Cost Basis by Origination Year 2021	139,586	138,171
Amortized Cost Basis by Origination Year 2020	51,797	155,141
Amortized Cost Basis by Origination Year 2019	50,568	61,823
Amortized Cost Basis by Origination Year, Prior to 2019	(42,964)	(51,381)
Revolving Loans	135,538	117,237
Revolving Loans Converted to Term	69,398	92,151
Total loans	(820,779)	(911,804)
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 2023		559
Amortized Cost Basis by Origination Year 2022		265
Amortized Cost Basis by Origination Year 2021	260
Amortized Cost Basis by Origination Year 2020
Amortized Cost Basis by Origination Year 2019		24
Amortized Cost Basis by Origination Year, Prior to 2019	(20)	(31)
Revolving Loans Converted to Term	2,674	450
Total loans	(2,954)	(1,329)
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 2021		6,001
Amortized Cost Basis by Origination Year, Prior to 2019	(11)	(124)
Revolving Loans Converted to Term	6,000	24,629
Total loans	(6,011)	(30,754)
Commercial Real Estate - Land and Construction [Member] | Commercial Real Estate [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2019		73
Total loans		(73)
Commercial Real Estate - Improved Property [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	288,153
Amortized Cost Basis by Origination Year 2022	1,095,462
Amortized Cost Basis by Origination Year 2021	612,900
Amortized Cost Basis by Origination Year 2020	605,147
Amortized Cost Basis by Origination Year 2019	572,255
Amortized Cost Basis by Origination Year, Prior to 2019	(1,883,067)
Revolving Loans	74,855
Revolving Loans Converted to Term	208,752
Total loans	(5,340,591)
Commercial Real Estate - Improved Property [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year, Prior to 2019	(1,381)
Total loans	(1,381)
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	288,153	1,093,538
Amortized Cost Basis by Origination Year 2022	1,096,835	621,217
Amortized Cost Basis by Origination Year 2021	614,993	616,815
Amortized Cost Basis by Origination Year 2020	610,968	551,152
Amortized Cost Basis by Origination Year 2019	589,550	395,192
Amortized Cost Basis by Origination Year, Prior to 2019	(1,966,043)	(1,666,522)
Revolving Loans	75,984	73,427
Revolving Loans Converted to Term	223,197	99,594
Total loans	(5,465,723)	(5,117,457)
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(260)	(2,147)
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(6,761)	(331)
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	(11,714)	(15,637)
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023		1,082,984
Amortized Cost Basis by Origination Year 2022		620,205
Amortized Cost Basis by Origination Year 2021		613,663
Amortized Cost Basis by Origination Year 2020		528,004
Amortized Cost Basis by Origination Year 2019		371,880
Amortized Cost Basis by Origination Year, Prior to 2019		(1,551,478)
Revolving Loans		72,327
Revolving Loans Converted to Term		99,594
Total loans		(4,940,135)
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023		10,554
Amortized Cost Basis by Origination Year 2022	858	354
Amortized Cost Basis by Origination Year 2021	1,677	2,877
Amortized Cost Basis by Origination Year 2020	5,107	7,659
Amortized Cost Basis by Origination Year 2019	3,898	13,551
Amortized Cost Basis by Origination Year, Prior to 2019	(58,364)	(85,332)
Revolving Loans	992	1,066
Total loans	(70,896)	(121,393)
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 2022	515	658
Amortized Cost Basis by Origination Year 2021	416	275
Amortized Cost Basis by Origination Year 2020	714	15,489
Amortized Cost Basis by Origination Year 2019	13,397	9,761
Amortized Cost Basis by Origination Year, Prior to 2019	(24,612)	(29,712)
Revolving Loans	137	34
Revolving Loans Converted to Term	14,445
Total loans	(54,236)	(55,929)
Commercial Real Estate - Improved Property [Member] | Commercial Real Estate [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2021		128
Amortized Cost Basis by Origination Year 2020		100
Amortized Cost Basis by Origination Year 2019		3
Amortized Cost Basis by Origination Year, Prior to 2019		(564)
Total loans		(795)
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	119,315	281,520
Amortized Cost Basis by Origination Year 2022	257,402	189,206
Amortized Cost Basis by Origination Year 2021	167,155	118,136
Amortized Cost Basis by Origination Year 2020	100,425	82,577
Amortized Cost Basis by Origination Year 2019	56,775	104,021
Amortized Cost Basis by Origination Year, Prior to 2019	(310,244)	(237,440)
Revolving Loans	499,500	534,745
Revolving Loans Converted to Term	47,675	31,750
Total loans	(1,558,491)	(1,579,395)
Commercial and Industrial [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(749)	(1,427)
Commercial and Industrial [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(422)	(519)
Commercial and Industrial [Member] | 90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	(2,714)	(3,138)
Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	118,188	280,510
Amortized Cost Basis by Origination Year 2022	256,690	184,805
Amortized Cost Basis by Origination Year 2021	165,711	116,890
Amortized Cost Basis by Origination Year 2020	100,007	72,142
Amortized Cost Basis by Origination Year 2019	48,413	103,660
Amortized Cost Basis by Origination Year, Prior to 2019	(289,745)	(232,062)
Revolving Loans	487,460	526,025
Revolving Loans Converted to Term	39,567	22,206
Total loans	(1,505,781)	(1,538,300)
Commercial and Industrial [Member] | Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	1,077	917
Amortized Cost Basis by Origination Year 2022	497	1,192
Amortized Cost Basis by Origination Year 2021	1,350	270
Amortized Cost Basis by Origination Year 2020	330	8,278
Amortized Cost Basis by Origination Year 2019	7,109	264
Amortized Cost Basis by Origination Year, Prior to 2019	(18,315)	(2,524)
Revolving Loans	10,562	7,654
Revolving Loans Converted to Term	6,681	4,124
Total loans	(45,921)	(25,223)
Commercial and Industrial [Member] | Classified - substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	50	93
Amortized Cost Basis by Origination Year 2022	215	3,209
Amortized Cost Basis by Origination Year 2021	94	976
Amortized Cost Basis by Origination Year 2020	88	2,157
Amortized Cost Basis by Origination Year 2019	1,253	97
Amortized Cost Basis by Origination Year, Prior to 2019	(2,184)	(2,854)
Revolving Loans	1,478	1,066
Revolving Loans Converted to Term	1,427	5,420
Total loans	(6,789)	(15,872)
Commercial and Industrial [Member] | Current-period gross charge-offs [Member]
Financing Receivable, Recorded Investment [Line Items]
Amortized Cost Basis by Origination Year 2023	48
Amortized Cost Basis by Origination Year 2022	86	16
Amortized Cost Basis by Origination Year 2021	404	234
Amortized Cost Basis by Origination Year 2020	43	275
Amortized Cost Basis by Origination Year 2019		70
Amortized Cost Basis by Origination Year, Prior to 2019	(211)	(182)
Revolving Loans Converted to Term	207	291
Total loans	$ (999)	$ (1,068)

Loans and the Allowance for _20

Loans and the Allowance for Credit Losses - Summary of Other Real Estate Owned and Repossessed Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Receivables [Abstract]
Other real estate owned	$ 1,289	$ 1,397
Repossessed assets	143	89
Total other real estate owned and repossessed assets	$ 1,432	$ 1,486

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) Derivative	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) Derivative	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) Derivative
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Collateral posted with market value on liability positions with credit risk-related contingent features	$ 44,300,000		$ 44,300,000
Interest Rate Swaps and Caps [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of interest rate swaps | Derivative	186		186		159
Aggregate notional amount	$ 1,200,000,000		$ 1,200,000,000		$ 900,000,000
Income (loss) on derivative instrument not designated hedges	$ 2,400,000	$ 900,000	$ 4,300,000	$ 1,000,000
Risk Participation in Agreements [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of interest rate swaps | Derivative	18		18		16
Aggregate notional amount	$ 198,100,000		$ 198,100,000		$ 187,800,000
Risk Participation out Agreement [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of interest rate swaps | Derivative	1		1		1
Aggregate notional amount	$ 9,400,000		$ 9,400,000		$ 9,600,000
Other Contract [Member] | Forward TBA Contracts [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Aggregate notional amount	$ 51,000,000		$ 51,000,000		$ 14,500,000

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities - Summary of Fair Values of Derivative Instruments on Balance Sheets (Detail) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 78,075,000	$ 75,893,000
Liability Derivatives	77,629,000	74,726,000
Interest Rate Swaps and Caps [Member] | Loan Swaps [Member]
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	1,243,199,000	936,834,000
Asset Derivatives	77,753,000	75,840,000
Liability Derivatives	77,458,000	74,683,000
Interest Rate Lock Commitments [Member] | Other Contract [Member]
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	33,293,000	10,071,000
Liability Derivatives	171,000	43,000
Forward TBA Contracts [Member] | Other Contract [Member]
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	51,000,000	14,500,000
Asset Derivatives	$ 322,000	$ 53,000

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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivatives, Fair Value [Line Items]
Total gain (loss) on derivative financial instruments	$ 498	$ 2,109	$ (543)	$ 4,695
Interest Rate Swaps and Caps [Member]
Derivatives, Fair Value [Line Items]
Total gain (loss) on derivative financial instruments	$ 176	$ 1,142	$ (863)	$ 2,603
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income
Interest Rate Lock Commitments [Member]
Derivatives, Fair Value [Line Items]
Total gain (loss) on derivative financial instruments	$ (315)	$ 362	$ (128)	$ 44
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	$ 637	$ 605	$ 448	$ 2,048
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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Retirement Benefits [Abstract]
Service cost – benefits earned during year	$ 354	$ 546	$ 704	$ 1,086
Interest cost on projected benefit obligation	1,572	1,026	3,126	2,039
Expected return on plan assets	$ (2,781)	$ (2,885)	$ (5,531)	$ (5,738)
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	$ (9)	$ (9)	$ (18)	$ (17)
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	$ 225	$ 126	$ 448	$ 251
Net periodic pension income	$ (639)	$ (1,196)	$ (1,271)	$ (2,379)

Benefit Plans - Additional Info

Benefit Plans - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Retirement Benefits [Abstract]
Service cost	$ 354,000	$ 546,000	$ 704,000	$ 1,086,000
Periodic pension income			2,000,000	$ 3,500,000
Expected voluntary contribution for the year 2023			$ 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, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	$ 11,948	$ 11,506
Available-for-sale debt securities	2,329,222	2,529,140
Loans held for sale	28,970	8,249
Other real estate owned and repossessed assets	1,432	1,486
Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	11,948	11,506
Available-for-sale debt securities	2,329,222	2,529,140
Loans held for sale	28,970	8,249
Other assets - interest rate swaps	77,753	75,840
Total assets	2,447,893	2,624,735
Other liabilities - interest rate swaps	77,458	74,683
Total liabilities recurring fair value measurements	77,458	74,683
Nonrecurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent loans	941	878
Other real estate owned and repossessed assets	1,432	1,486
Total assets	2,373	2,364
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	211,951	225,970
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	211,951	225,970
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	1,721,887	1,846,053
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	1,721,887	1,846,053
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	305,242	349,731
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	305,242	349,731
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	78,431	92,228
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	78,431	92,228
Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	11,711	15,158
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	11,711	15,158
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	11,948	11,506
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	11,948	11,506
Total assets	11,948	11,506
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	2,328,045	2,527,961
Loans held for sale	28,970	8,249
Other assets - interest rate swaps	77,753	75,840
Other liabilities - interest rate swaps	77,458	74,683
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	2,328,045	2,527,961
Loans held for sale	28,970	8,249
Other assets - interest rate swaps	77,753	75,840
Total assets	2,434,768	2,612,050
Other liabilities - interest rate swaps	77,458	74,683
Total liabilities recurring fair value measurements	77,458	74,683
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	211,951	225,970
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	1,721,887	1,846,053
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	305,242	349,731
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	77,254	91,049
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	11,711	15,158
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale debt securities	1,177	1,179
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	1,177	1,179
Total assets	1,177	1,179
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	941	878
Other real estate owned and repossessed assets	1,432	1,486
Total assets	2,373	2,364
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	$ 1,177	$ 1,179

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Fair value transfer amount	$ 0	$ 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, 2023	Dec. 31, 2022
Fair Value Inputs Asset Quantitative Information [Line Items]
Other real estate owned and repossessed assets	$ 1,432	$ 1,486
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans	941	878
Other real estate owned and repossessed assets	1,432	1,486
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans	941	878
Other real estate owned and repossessed assets	$ 1,432	$ 1,486
Collateral dependent loans, Appraisal adjustments	(0.00%)	(0.00%)
Collateral dependent loans, Liquidation expenses	(3.70%)	(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	(0.00%)	(0.00%)
Collateral dependent loans, Liquidation expenses	(3.70%)	(8.00%)

Fair Value Measurement - Estima

Fair Value Measurement - Estimates Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financial Assets
Cash and due from banks	$ 562,318	$ 408,411
Equity securities	11,948	11,506
Available-for-sale debt securities	2,329,222	2,529,140
Net held-to-maturity debt securities	1,224,277	1,248,409
Loans held for sale	28,970	8,249
Accrued interest receivable	69,773	68,522
Financial Liabilities
Deposits	12,861,434	13,131,090
Federal Home Loan Bank borrowings	1,380,000	705,000
Other borrowings	101,286	135,069
Subordinated debt and junior subordinated debt	281,854	281,404
Accrued interest payable	8,869	4,593
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial Assets
Cash and due from banks	562,318	408,411
Equity securities	11,948	11,506
Accrued interest receivable	69,773	68,522
Financial Liabilities
Deposits	11,901,327	12,245,272
Other borrowings	95,095	122,926
Accrued interest payable	8,869	4,593
Significant Other Observable Inputs (Level 2) [Member]
Financial Assets
Available-for-sale debt securities	2,328,045	2,527,961
Net held-to-maturity debt securities	1,071,938	1,084,071
Loans held for sale	28,970	8,249
Other assets - interest rate swaps	77,753	75,840
Financial Liabilities
Deposits	954,557	897,671
Federal Home Loan Bank borrowings	1,377,968	705,094
Subordinated debt and junior subordinated debt	245,460	258,631
Other liabilities - interest rate swaps	77,458	74,683
Significant Unobservable Inputs (Level 3) [Member]
Financial Assets
Available-for-sale debt securities	1,177	1,179
Net held-to-maturity debt securities	291	319
Net loans	10,931,441	9,487,038
Carrying Amount [Member]
Financial Assets
Cash and due from banks	562,318	408,411
Equity securities	11,948	11,506
Available-for-sale debt securities	2,329,222	2,529,140
Net held-to-maturity debt securities	1,224,277	1,248,409
Net loans	11,009,798	10,584,938
Loans held for sale	28,970	8,249
Other assets - interest rate swaps	77,753	75,840
Accrued interest receivable	69,773	68,522
Financial Liabilities
Deposits	12,861,434	13,131,090
Federal Home Loan Bank borrowings	1,380,000	705,000
Other borrowings	101,286	135,069
Subordinated debt and junior subordinated debt	281,854	281,404
Other liabilities - interest rate swaps	77,458	74,683
Accrued interest payable	8,869	4,593
Fair Value Estimate [Member]
Financial Assets
Cash and due from banks	562,318	408,411
Equity securities	11,948	11,506
Available-for-sale debt securities	2,329,222	2,529,140
Net held-to-maturity debt securities	1,072,229	1,084,390
Net loans	10,931,441	9,487,038
Loans held for sale	28,970	8,249
Other assets - interest rate swaps	77,753	75,840
Accrued interest receivable	69,773	68,522
Financial Liabilities
Deposits	12,855,884	13,142,943
Federal Home Loan Bank borrowings	1,377,968	705,094
Other borrowings	95,095	122,926
Subordinated debt and junior subordinated debt	245,460	258,631
Other liabilities - interest rate swaps	77,458	74,683
Accrued interest payable	$ 8,869	$ 4,593

Revenue Recognition - Summary o

Revenue Recognition - Summary of Revenue Recognition (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Schedule Of Revenue Recognition [Line Items]
Total net securities brokerage revenue	$ 2,523	$ 2,258	$ 5,098	$ 4,478
Electronic banking fees	5,010	5,154	9,615	10,499
Mortgage banking income	601	1,328	1,027	3,251
Net gain (loss) on other real estate owned and other assets	871	(1,302)	1,104	(2,108)
Total Service Charges on Deposits [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	6,232	6,487	12,401	12,577
Trust Account fees [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	5,009	4,416	$ 10,614	9,958
Point of revenue recognition			Over time
WesMark Fees [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	1,909	2,111	$ 3,798	4,404
Point of revenue recognition			Over time
Total Trust Fees [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	6,918	6,527	$ 14,412	14,362
Commercial Banking Fees [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	650	602	$ 1,259	1,170
Point of revenue recognition			Over time
Personal Service Charges [Member]
Schedule Of Revenue Recognition [Line Items]
Total trust fees/Total service charges on deposits	5,582	5,885	$ 11,142	11,407
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	1,840	1,679	$ 3,885	3,261
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	149	8	$ 149	65
Point of revenue recognition			At a point in time
Managed Money [Member]
Schedule Of Revenue Recognition [Line Items]
Total net securities brokerage revenue	284	327	$ 567	654
Point of revenue recognition			Over time
Trail Commissions [Member]
Schedule Of Revenue Recognition [Line Items]
Total net securities brokerage revenue	250	244	$ 497	498
Point of revenue recognition			Over time
Payment Processing Fees [Member]
Schedule Of Revenue Recognition [Line Items]
Payment Processing Fees	$ 951	$ 877	$ 1,822	$ 1,618
Point of revenue recognition			At a point in time and over time
Electronic Banking Fees [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, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue Recognition [Abstract]
Gain (losses) on change in fair value of other real estate owned and other assets not within scope of ASC 606	$ (1.4)	$ 0	$ (2.6)

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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 2,475,457	$ 2,547,316	$ 2,426,662	$ 2,693,166
Amounts reclassified from accumulated other comprehensive loss	81	62	270	117
Total other comprehensive loss	(30,228)	(64,749)	(2,211)	(170,941)
Ending Balance	2,464,998	2,467,951	2,464,998	2,467,951
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(535)	(398)
Other comprehensive loss before reclassifications			0	0
Amounts reclassified from accumulated other comprehensive loss	75	55	150	109
Total other comprehensive loss			150	109
Ending Balance	(385)	(289)	(385)	(289)
Accumulated Unrealized Gains (Losses) on Debt Securities Available for Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(261,881)	(4,722)
Other comprehensive loss before reclassifications			(2,481)	(171,058)
Amounts reclassified from accumulated other comprehensive loss	6	7	120	8
Total other comprehensive loss			(2,361)	(171,050)
Ending Balance	(264,242)	(175,772)	(264,242)	(175,772)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(234,399)	(111,312)	(262,416)	(5,120)
Other comprehensive loss before reclassifications			(2,481)	(171,058)
Amounts reclassified from accumulated other comprehensive loss			270	117
Total other comprehensive loss	(30,228)	(64,749)	(2,211)	(170,941)
Ending Balance	$ (264,627)	$ (176,061)	$ (264,627)	$ (176,061)

Comprehensive Income_(Loss) -_2

Comprehensive Income/(Loss) - Components of Accumulated Other Comprehensive Income (Parenthetical) (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
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 (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities gains reclassified into earnings	$ (205)	$ 1,183	$ (350)	$ 1,832
Provision for income taxes	9,063	10,256	19,005	20,114
Employee benefits (Non-interest expense)	11,511	8,722	23,570	17,880
Net effect on accumulated other comprehensive income/(loss) for the period	81	62	270	117
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	6	7	120	8
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	75	55	150	109
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 gains reclassified into earnings	8	9	159	10
Provision for income taxes	(2)	(2)	(39)	(2)
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)	(18)	(48)	(35)
Employee benefits (Non-interest expense)	$ 99	$ 73	$ 198	$ 144

Comprehensive Income_(Loss) -_3

Comprehensive Income/(Loss) - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income (Parenthetical) (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
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, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Allowance for credit losses associated with loan commitments	$ 10.1	$ 8.4
Liability associated with letters of credit	$ 0.3	$ 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, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Lines of credit	$ 4,204,247	$ 3,806,398
Loans approved but not closed	466,599	398,204
Overdraft limits	389,271	380,143
Letters of credit	33,991	30,362
Contingent obligations and other guarantees	$ 23,002	$ 30,782

Business Segments - Additional

Business Segments - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($) Segment	Jun. 30, 2022 USD ($)
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	$ 5,100	$ 4,800
Total non-fiduciary assets of the trust and investment services segment	3.4	3.7
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	$ 1	$ 1.3

Business Segments - Financial I

Business Segments - Financial Information by Business Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Interest and dividend income	$ 176,055	$ 118,447	$ 336,609	$ 230,621
Interest expense	54,488	6,219	90,711	10,683
NET INTEREST INCOME	121,567	112,228	245,898	219,938
Provision for credit losses	3,028	(812)	6,605	(4,250)
Net interest income after provision for credit losses	118,539	113,040	239,293	224,188
Non-interest income	31,841	26,983	59,493	57,365
Non-interest expense	96,437	87,019	192,560	174,569
Income before provision for income taxes	53,943	53,004	106,226	106,984
Provision for income taxes	9,063	10,256	19,005	20,114
Net income	44,880	42,748	87,221	86,870
Preferred stock dividends	2,531	2,531	5,063	5,063
Net income available to common shareholders	42,349	40,217	82,158	81,807
Community Banking [Member]
Segment Reporting Information [Line Items]
Interest and dividend income	176,055	118,447	336,609	230,621
Interest expense	54,488	6,219	90,711	10,683
NET INTEREST INCOME	121,567	112,228	245,898	219,938
Provision for credit losses	3,028	(812)	6,605	(4,250)
Net interest income after provision for credit losses	118,539	113,040	239,293	224,188
Non-interest income	24,923	20,456	45,081	43,003
Non-interest expense	91,818	83,112	183,433	166,339
Income before provision for income taxes	51,644	50,384	100,941	100,852
Provision for income taxes	8,580	9,706	17,895	18,826
Net income	43,064	40,678	83,046	82,026
Preferred stock dividends	2,531	2,531	5,063	5,063
Net income available to common shareholders	40,533	38,147	77,983	76,963
Trust and Investment Services [Member]
Segment Reporting Information [Line Items]
Non-interest income	6,918	6,527	14,412	14,362
Non-interest expense	4,619	3,907	9,127	8,230
Income before provision for income taxes	2,299	2,620	5,285	6,132
Provision for income taxes	483	550	1,110	1,288
Net income	1,816	2,070	4,175	4,844
Net income available to common shareholders	$ 1,816	$ 2,070	$ 4,175	$ 4,844