Premises and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Land	$ 185,119	$ 184,762
Investment Building and Building Improvements	509,151	497,449
Fixtures and Equipment, Gross	664,556	622,170
Leasehold Improvements, Gross	129,056	121,953
Property, Plant and Equipment, Gross	1,487,882	1,426,334
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	761,510	717,452
Premises and equipment, net	$ 726,372	$ 708,882