Wesbanco Bank Community Development Corporation - Schedule of Condensed Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
ASSETS
Cash and due from banks	$ 128,170	$ 86,685	$ 94,002	$ 95,551
Loans, net of allowance for loan losses of $249	6,205,762	5,024,132
Other assets	180,488	149,302
Total Assets	9,790,877	8,470,298
Liabilities	8,449,469	7,348,166
Shareholder Equity	1,341,408	1,122,132	$ 788,190	$ 746,595
Total Liabilities and Shareholder Equity	9,790,877	8,470,298
WBCDC [Member]
ASSETS
Cash and due from banks	31,303	$ 26,317
Loans, net of allowance for loan losses of $249	39,589
Investments	968
Other assets	286
Total Assets	72,146
Liabilities	274
Shareholder Equity	71,872
Total Liabilities and Shareholder Equity	$ 72,146