Derivatives (Summary Of Types Of Derivatives, Separately By Assets And Liabilities And Fair Value Of Derivatives) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Derivative assets	$ 43,549	$ 29,210
Interest Rate Lock Commitments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	3,631	2,867
Interest Rate Forward Sales Commitments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	1,155	16
Total liability derivatives	971	2,627
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	38,567	26,327
Total liability derivatives	40,238	28,158
Interest Rate Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	43,549	29,775
Total liability derivatives	41,514	30,888
Interest Rate Contracts [Member] | Interest Rate Lock Commitments [Member] | Other Assets[Member]
Derivatives, Fair Value [Line Items]
Derivative assets	3,631	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]
Derivative assets	1,155	16
Interest Rate Contracts [Member] | Interest Rate Forward Sales Commitments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liability derivatives	971	2,627
Interest Rate Contracts [Member] | Interest Rate Swap [Member] | Other Assets[Member]
Derivatives, Fair Value [Line Items]
Derivative assets	38,567	26,327
Interest Rate Contracts [Member] | Interest Rate Swap [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liability derivatives	40,238	28,158
Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	196	565
Total liability derivatives	305	103
Foreign Exchange Contract [Member] | Other Assets[Member]
Derivatives, Fair Value [Line Items]
Derivative assets	196	565
Foreign Exchange Contract [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liability derivatives	$ 305	$ 103