Fair Value Measurement (Tables)

12 Months Ended

Dec. 31, 2016

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, 2016 and 2015:

(in thousands)	December 31, 2016		Quoted Prices in Active Markets for Identical Assets (level 1)		Significant Other Observable Inputs (level 2)		Significant Unobservable Inputs (level 3)		Investments Measured at Net Asset Value
Recurring fair value measurements
Trading securities	$	7,071	$	5,633	$	—	$	—	$	1,438
Securities—available-for-sale
U.S. Government sponsored entities and agencies		54,043		—		54,043		—		—
Residential mortgage-backed securities and collateralized mortgage obligations of government agencies		1,035,099		—		1,035,099		—		—
Obligations of state and political subdivisions		111,663		—		111,663		—		—
Corporate debt securities		35,301		—		35,301		—		—
Equity securities		5,070		2,938		2,132		—		—
Total securities—available-for-sale	$	1,241,176	$	2,938	$	1,238,238	$	—	$	—
Other assets—interest rate derivatives agreements	$	5,596	$	—	$	5,596	$	—	$	—
Total assets recurring fair value measurements	$	1,253,843	$	8,571	$	1,243,834	$	—	$	1,438
Other liabilities—interest rate derivatives agreements	$	5,199	$	—	$	5,199	$	—	$	—
Total liabilities recurring fair value measurements	$	5,199	$	—	$	5,199	$	—	$	—
Nonrecurring fair value measurements
Impaired loans	$	3,405	$	—	$	—	$	3,405	$	—
Other real estate owned and repossessed assets		8,346		—		—		8,346		—
Loans held for sale		17,315		—		17,315		—		—
Total nonrecurring fair value measurements	$	29,066	$	—	$	17,315	$	11,751	$	—

			December 31, 2015 Fair Value Measurements Using:
(in thousands)	December 31, 2015		Quoted Prices in Active Markets for Identical Assets (level 1)		Significant Other Observable Inputs (level 2)		Significant Unobservable Inputs (level 3)		Investments Measured at Net Asset Value
Recurring fair value measurements
Trading securities	$	6,451	$	5,226	$	—	$	—	$	1,225
Securities—available-for-sale
U.S. Government sponsored entities and agencies		83,505		—		83,505		—		—
Residential mortgage-backed securities and collateralized mortgage obligations of government agencies		1,176,080		—		1,176,080		—		—
Obligations of state and political subdivisions		80,265		—		80,265		—		—
Corporate debt securities		58,593		—		58,593		—		—
Equity securities		4,626		2,735		1,891		—		—
Total securities—available-for-sale	$	1,403,069	$	2,735	$	1,400,334	$	—	$	—
Other assets—interest rate derivatives agreements	$	1,893	$	—	$	1,893	$	—	$	—
Total assets recurring fair value measurements	$	1,411,413	$	7,961	$	1,402,227	$	—	$	1,225
Other liabilities—interest rate derivatives agreements	$	1,991	$	—	$	1,991	$	—	$	—
Total liabilities recurring fair value measurements	$	1,991	$	—	$	1,991	$	—	$	—
Nonrecurring fair value measurements
Impaired loans	$	6,363	$	—	$	—	$	6,363	$	—
Other real estate owned and repossessed assets		5,825		—		—		5,825		—
Loans held for sale		7,899		—		7,899		—		—
Total nonrecurring fair value measurements	$	20,087	$	—	$	7,899	$	12,188	$	—

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, 2016:
Impaired loans	$	3,405	Appraisal of collateral (1)	Appraisal adjustments (2)	0% to (70.0%) / (36.6%)
				Liquidation expenses (2)	(1.5%) to (8.0%) / (4.6%)
Other real estate owned and repossessed assets		8,346	Appraisal of collateral (1)(3)
December 31, 2015:
Impaired loans	$	6,363	Appraisal of collateral (1)	Appraisal adjustments (2)	0% to (40.6%) / (25.1%)
				Liquidation expenses (2)	(3.0%) to (8.0%) / (6.7%)
Other real estate owned and repossessed assets		5,825	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

The estimated fair values of WesBanco’s financial instruments are summarized below:

	Carrying Amount		Fair Value Estimate		Fair Value Measurements at December 31, 2016
(in thousands)					Quoted Prices in Active Markets for Identical Assets (level 1)		Significant Other Observable Inputs (level 2)		Significant Unobservable Inputs (level 3)		Investments Measured at Net Asset Value
Financial Assets
Cash and due from banks	$	128,170	$	128,170	$	128,170	$	—	$	—	$	—
Trading securities		7,071		7,071		5,633		—		—		1,438
Securities available-for-sale		1,241,176		1,241,176		2,938		1,238,238		—		—
Securities held-to-maturity		1,067,967		1,076,790		—		1,076,189		601		—
Net loans		6,205,762		6,073,558		—		—		6,073,558		—
Loans held for sale		17,315		17,315		—		17,315		—		—
Other assets—interest rate derivatives		5,596		5,596		—		5,596		—		—
Accrued interest receivable		28,299		28,299		28,299		—		—		—
Financial Liabilities
Deposits		7,040,879		7,052,501		5,545,057		1,507,444		—		—
Federal Home Loan Bank borrowings		968,946		974,430		—		974,430		—		—
Other borrowings		199,376		199,385		197,164		2,221		—		—
Subordinated debt and junior subordinated debt		163,598		134,859		—		134,859		—		—
Other liabilities—interest rate derivatives		5,199		5,199		—		5,199		—		—
Accrued interest payable		2,204		2,204		2,204		—		—		—

	Carrying Amount		Fair Value Estimate		Fair Value Measurements at December 31, 2015
(in thousands)					Quoted Prices in Active Markets for Identical Assets (level 1)		Significant Other Observable Inputs (level 2)		Significant Unobservable Inputs (level 3)		Investments Measured at Net Asset Value
Financial Assets
Cash and due from banks	$	86,685	$	86,685	$	86,685	$	—	$	—	$	—
Trading securities		6,451		6,451		5,226		—		—		1,225
Securities available-for-sale		1,403,069		1,403,069		2,735		1,400,334		—		—
Securities held-to-maturity		1,012,930		1,038,207		—		1,037,490		717		—
Net loans		5,024,132		4,936,236		—		—		4,936,236		—
Loans held for sale		7,899		7,899		—		7,899		—		—
Other assets—interest rate derivatives		1,893		1,893		—		1,893		—		—
Accrued interest receivable		25,759		25,759		25,759		—		—		—
Financial Liabilities
Deposits		6,066,299		6,075,433		4,508,461		1,566,972		—		—
Federal Home Loan Bank borrowings		1,041,750		1,041,752		—		1,041,752		—		—
Other borrowings		81,356		81,361		78,682		2,679		—		—
Junior subordinated debt		106,196		79,681		—		79,681		—		—
Other liabilities—interest rate derivatives		1,991		1,991		—		1,991		—		—
Accrued interest payable		1,715		1,715		1,715		—		—		—