Derivatives (Summary Of Types Of Derivatives, Separately By Assets And Liabilities And Fair Value Of Derivatives) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Asset derivatives	$ 93,747	$ 43,549
Liability derivatives	95,103	41,514
Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Asset derivatives	131	196
Liability derivatives	334	305
Foreign Exchange Contract | Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	131	196
Foreign Exchange Contract | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	334	305
Interest Rate Lock Commitments
Derivatives, Fair Value [Line Items]
Asset derivatives	11,028	3,631
Interest Rate Lock Commitments | Interest Rate Contracts | Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	11,028	3,631
Interest Rate Lock Commitments | Interest Rate Contracts | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0	0
Interest Rate Forward Sales Commitments
Derivatives, Fair Value [Line Items]
Asset derivatives		1,155
Liability derivatives	7,224	971
Interest Rate Forward Sales Commitments | Interest Rate Contracts | Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0	1,155
Interest Rate Forward Sales Commitments | Interest Rate Contracts | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	7,224	971
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Asset derivatives	82,588	38,567
Liability derivatives	87,545	40,238
Interest Rate Swap | Interest Rate Contracts | Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	82,588	38,567
Interest Rate Swap | Interest Rate Contracts | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	$ 87,545	$ 40,238