Derivatives (Summary Of Types Of Derivatives, Separately By Assets And Liabilities And Fair Value Of Derivatives) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Interest Rate Lock Commitments [Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	$ 3,008	$ 1,496
Total liability derivatives	0	18
Interest Rate Forward Sales Commitments [Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	0	133
Total liability derivatives	3,784	905
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	14,477	22,213
Total liability derivatives	13,211	22,048
Interest Rate Contracts [Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	17,485	23,842
Total liability derivatives	16,995	22,971
Interest Rate Contracts [Member] | Interest Rate Lock Commitments [Member] | Other Assets[Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	3,008	1,496
Interest Rate Contracts [Member] | Interest Rate Lock Commitments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liability derivatives	0	18
Interest Rate Contracts [Member] | Interest Rate Forward Sales Commitments [Member] | Other Assets[Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	0	133
Interest Rate Contracts [Member] | Interest Rate Forward Sales Commitments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liability derivatives	3,784	905
Interest Rate Contracts [Member] | Interest Rate Swap [Member] | Other Assets[Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	14,477	22,213
Interest Rate Contracts [Member] | Interest Rate Swap [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liability derivatives	$ 13,211	$ 22,048