Summary Of Significant Accounting Policies (Premises And Equipment Useful Life) (Details)	12 Months Ended
	Dec. 31, 2012
Maximum [Member] | Building And Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, estimated useful lives	40 years
Maximum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, estimated useful lives	10 years
Maximum [Member] | Furniture, Fixtures And Equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, estimated useful lives	10 years
Maximum [Member] | Computer Equipment And Software [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, estimated useful lives	5 years
Minimum [Member] | Building And Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, estimated useful lives	20 years
Minimum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, estimated useful lives	5 years
Minimum [Member] | Furniture, Fixtures And Equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, estimated useful lives	5 years
Minimum [Member] | Computer Equipment And Software [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, estimated useful lives	3 years