Premises and Equipment Text Details (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Depreciation	$ 6,235,000	$ 6,570,000	$ 6,236,000
Guarantor Obligations, Maximum Exposure within Next Twelve Months	700,000
Guarantor Obligations, Maximum Exposure within One to Two Years	700,000
Guarantor Obligations, Maximum Exposure within Two to Three Years	500,000
Operating Leases, Rent Expense, Net	$ 14,800,000	$ 16,300,000	$ 14,600,000