Fair Value Measurement (Tables)

12 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Assets and Liabilities Measured on Recurring and Nonrecurring Basis

. 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 December 31, 2020 and December 31, 2019:

			December 31, 2020
			Fair Value Measurements Using:
(in thousands)	December 31, 2020		Quoted Prices in Active Markets for Identical Assets (level 1)		Significant Other Observable Inputs (level 2)		Significant Unobservable Inputs (level 3)
Recurring fair value measurements
Equity securities	$	13,047	$	13,047	$	—	$	—
Available-for-sale debt securities:
U.S. Treasury		39,982		—		39,982		—
U.S. Government sponsored entities and agencies		211,682		—		211,682		—
Residential mortgage-backed securities and collateralized    mortgage obligations of government sponsored    entities and agencies		1,264,737		—		1,264,737		—
Commercial mortgage-backed securities and collateralized    mortgage obligations of government sponsored entities    and agencies		320,098		—		320,098		—
Obligations of state and political subdivisions		115,762		—		114,227		1,535
Corporate debt securities		25,875		—		25,875		—
Total available-for-sale debt securities	$	1,978,136	$	—	$	1,976,601	$	1,535
Loans held for sale		168,378		—		168,378		—
Other assets—interest rate derivatives agreements		46,418		—		46,418		—
Total assets recurring fair value measurements	$	2,205,979	$	13,047	$	2,191,397	$	1,535
Other liabilities—interest rate derivatives agreements		49,917		—		49,917		—
Total liabilities recurring fair value measurements	$	49,917	$	—	$	49,917	$	—
Nonrecurring fair value measurements
Individually-evaluated nonperforming loans	$	1,958	$	—	$	—	$	1,958
Other real estate owned and repossessed assets		549		—		—		549
Total nonrecurring fair value measurements	$	2,507	$	—	$	—	$	2,507

	December 31, 2019
	Fair Value Measurements Using:
(in thousands)	December 31, 2019		Quoted Prices in Active Markets for Identical Assets (level 1)		Significant Other Observable Inputs (level 2)		Significant Unobservable Inputs (level 3)
Recurring fair value measurements
Equity securities	$	12,343	$	12,343	$	—	$	—
Available-for-sale debt securities:
U.S. Treasury		32,836		—		32,836		—
U.S. Government sponsored entities and agencies		159,628		—		159,628		—
Residential mortgage-backed securities and collateralized    mortgage obligations of government sponsored    entities and agencies		1,815,987		—		1,815,987		—
Commercial mortgage-backed securities and collateralized    mortgage obligations of government sponsored entities    and agencies		190,409		—		190,409		—
Obligations of state and political subdivisions		145,609		—		144,004		1,605
Corporate debt securities		49,089		—		49,089		—
Total available-for-sale debt securities	$	2,393,558	$	—	$	2,391,953	$	1,605
Loans held for sale		43,013		—		43,013		—
Other assets—interest rate derivatives agreements		14,585		—		14,585		—
Total assets recurring fair value measurements	$	2,463,499	$	12,343	$	2,449,551	$	1,605
Other liabilities—interest rate derivatives agreements		16,117		—		16,117		—
Total liabilities recurring fair value measurements	$	16,117	$	—	$	16,117	$	—
Nonrecurring fair value measurements
Impaired loans	$	2,362	$	—	$	—	$	2,362
Other real estate owned and repossessed assets		4,178		—		—		4,178
Total nonrecurring fair value measurements	$	6,540	$	—	$	—	$	6,540

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
(in thousands)	Fair Value Estimate		Valuation Techniques	Unobservable Input	Range / Weighted Average
December 31, 2020:
Individually-evaluated nonperforming loans	$	1,958	Appraisal of collateral (1)	Appraisal adjustments (2)	(30.0%)/(30.0%)
				Liquidation expenses (2)	(5.6%)/(5.6%)
Other real estate owned and    repossessed assets		549	Appraisal of collateral (1)(3)
December 31, 2019:
Impaired loans	$	2,362	Appraisal of collateral (1)	Appraisal adjustments (2)	(29.8%)/(29.8%)
				Liquidation expenses (2)	(5.3%)/(5.3%)
Other real estate owned and    repossessed assets		4,178	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 expenses 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

					Fair Value Measurements at December 31, 2020
(in thousands)	Carrying Amount		Fair Value Estimate		Quoted Prices in Active Markets for Identical Assets (level 1)		Significant Other Observable Inputs (level 2)		Significant Unobservable Inputs (level 3)
Financial Assets
Cash and due from banks	$	905,447	$	905,447	$	905,447	$	—	$	—
Equity securities		13,047		13,047		13,047		—		—
Available-for-sale debt securities		1,978,136		1,978,136		—		1,976,601		1,535
Held-to-maturity debt securities		730,886		768,183		—		767,720		463
Net loans		10,603,406		10,802,883		—		—		10,802,883
Loans held for sale		168,378		168,378		—		168,378		—
Other assets—interest rate derivatives		46,418		46,418		—		46,418		—
Accrued interest receivable		66,790		66,790		66,790		—		—
Financial Liabilities
Deposits		12,429,373		12,439,981		10,810,863		1,629,118		—
Federal Home Loan Bank borrowings		549,003		555,375		—		555,375		—
Other borrowings		241,950		235,796		235,796		—		—
Subordinated debt and junior subordinated debt		192,291		174,452		—		105,768		68,684
Other liabilities—interest rate derivatives		49,917		49,917		—		49,917		—
Accrued interest payable		4,314		4,314		4,314		—		—

					Fair Value Measurements at December 31, 2019
(in thousands)	Carrying Amount		Fair Value Estimate		Quoted Prices in Active Markets for Identical Assets (level 1)		Significant Other Observable Inputs (level 2)		Significant Unobservable Inputs (level 3)
Financial Assets
Cash and due from banks	$	234,796	$	234,796	$	234,796	$	—	$	—
Equity securities		12,343		12,343		12,343		—		—
Available-for-sale debt securities		2,393,558		2,393,558		—		2,391,953		1,605
Held-to-maturity debt securities		851,753		874,523		—		873,995		528
Net loans		10,215,556		10,297,989		—		—		10,297,989
Loans held for sale		43,013		43,013		—		43,013		—
Other assets—interest rate derivatives		14,585		14,585		—		14,585		—
Accrued interest receivable		43,648		43,648		43,648		—		—
Financial Liabilities
Deposits		11,004,006		10,989,818		8,948,086		2,041,732		—
Federal Home Loan Bank borrowings		1,415,615		1,420,302		—		1,420,302		—
Other borrowings		282,362		282,691		279,345		3,346		—
Subordinated debt and junior subordinated debt		199,869		188,349		—		122,934		65,415
Other liabilities—interest rate derivatives		16,117		16,117		—		16,117		—
Accrued interest payable		8,077		8,077		8,077		—		—