Premises and Equipment (Premises and Equipment) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Abstract]
Land	$ 97,095	$ 105,004
Buildings	231,066	238,782
Furniture and equipment	212,169	201,843
Leasehold improvements	61,221	59,489
Construction in progress	10,074	3,503
Premises and equipment, Gross	611,625	608,621
Less accumulated depreciation and amortization	(298,294)	(292,687)
Total premises and equipment, net	$ 313,331	$ 315,934