Wesbanco Bank Community Development Corporation - Additional Information (Detail) - WBCDC [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Subsidiary Financial Statements Table [Line Items]
New Markets Tax Credits	$ 125,000,000.0
New Markets Tax Credits invested	112,500,000
New Markets Tax Credits not invested	$ 12,500,000
Lower limit of poverty rate tracts	20.00%
Percentage income of median family	80.00%
Percentage of credit provided to the investor	39.00%
Period of credit allowance	7 years
Percentage of total amount investor receives as credit	5.00%
Percentage of total amount investor receives as credit for the remaining four years	6.00%
Amount received as tax credit	$ 29,300,000
Investment limit for credit allowance	112,500,000
Amount eligible to receive as tax credit	14,600,000
Amount received as tax credit			$ 4,900,000
Investment limit for credit allowance			12,500,000
Provision for income tax	2,600,000	$ 2,000,000.0	$ 1,600,000
Tax credit carry forward	$ 0
Minimum percentage of QEI proceeds utilized	85.00%
Net gain on investments	$ 3,782,000
NMTC [Member]
Schedule Of Subsidiary Financial Statements Table [Line Items]
New Markets Tax Credits invested	$ 0