Wesbanco Bank Community Development Corporation - Schedule of Condensed Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Cash and due from banks	$ 905,447	$ 234,796
Other assets	240,970	215,762
Total Assets	16,425,610	15,720,112
Liabilities	13,668,873	13,126,191
Shareholder Equity	2,756,737	2,593,921	$ 1,978,827	$ 1,395,321
Total Liabilities and Shareholders’ Equity	16,425,610	$ 15,720,112
WBCDC [Member]
ASSETS
Cash and due from banks	65,282
Loans, net of allowance for loan losses of $1.0 million	46,951
Investments	1,634
Other assets	794
Total Assets	114,661
Liabilities	246
Shareholder Equity	114,415
Total Liabilities and Shareholders’ Equity	$ 114,661