Premises And Equipment (Premises And Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	$ 57,179	$ 48,863
Accumulated depreciation	(35,548)	(31,166)
Premises and equipment, net	21,631	17,697
Furniture, Fixtures, and Equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	$ 46,409	41,765
Furniture, Fixtures, and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	12 years
Furniture, Fixtures, and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, Gross	$ 10,770	$ 7,098
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	6 years