Derivatives (Summary Of Types Of Derivatives, Separately By Assets And Liabilities And Fair Value Of Derivatives) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Total asset derivatives	$ 50,608	$ 29,775
Total liability derivatives	52,796	30,888
Interest Rate Lock Commitments [Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	5,466	2,867
Interest Rate Forward Sales Commitments [Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	2	16
Total liability derivatives	5,271	2,627
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	45,134	26,327
Total liability derivatives	47,520	28,158
Interest Rate Contracts [Member] | Interest Rate Lock Commitments [Member] | Other Assets[Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	5,466	2,867
Interest Rate Contracts [Member] | Interest Rate Lock Commitments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liability derivatives	0	0
Interest Rate Contracts [Member] | Interest Rate Forward Sales Commitments [Member] | Other Assets[Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	2	16
Interest Rate Contracts [Member] | Interest Rate Forward Sales Commitments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liability derivatives	5,271	2,627
Interest Rate Contracts [Member] | Interest Rate Swap [Member] | Other Assets[Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	45,134	26,327
Interest Rate Contracts [Member] | Interest Rate Swap [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liability derivatives	47,520	28,158
Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	6	565
Total liability derivatives	5	103
Foreign Exchange Contract [Member] | Other Assets[Member]
Derivatives, Fair Value [Line Items]
Total asset derivatives	6	565
Foreign Exchange Contract [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liability derivatives	$ 5	$ 103