Fair Value Measurement (Schedule Of Reconciliation Of Assets And Liabilities Measured At Fair Value Using Significant Unobservable Inputs (Level 3) On A Recurring Basis) (Details) (Level 3 [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Junior Subordinated Debentures [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Junior subordinated debentures, at fair value, Beginning Balance	$ 85,081	$ 82,905
Junior subordinated debentures, at fair value, Change included in earnings	6,090	6,350
Junior subordinated debentures, at fair value, Purchases and issuances	0	0
Junior subordinated debentures, at fair value, Sales and settlements	(3,897)	(4,174)
Junior subordinated debentures, at fair value, Ending Balance	87,274	85,081
Junior subordinated debentures, at fair value, Net change in unrealized gains or (losses) relating to items held at end of period	6,090	6,350
Interest Rate Lock Commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Interest rate lock commitment, Beginning Balance	1,478	1,749
Interest rate lock commitment, Change included in earnings	(1,478)	(1,749)
Interest rate lock commitment, Purchases and issuances	62,560	111,473
Interest rate lock commitment, Sales and settlements	(61,854)	(109,995)
Interest rate lock commitment, Ending Balance	706	1,478
Interest rate lock commitment, Net change in unrealized gains or (losses) relating to items held at end of period	706	1,478
Mortgage Servicing Rights [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Mortgage servicing rights, at fair value, Beginning Balance	27,428	18,184
Mortgage servicing rights, at fair value, Change included in earnings	2,374	(8,466)
Mortgage servicing rights, at fair value, Purchases and issuances	17,963	17,710
Mortgage servicing rights, at fair value, Sales and settlements	0	0
Mortgage servicing rights, at fair value, Ending Balance	47,765	27,428
Mortgage servicing rights, at fair value, Net change in unrealized gains or (losses) relating to items held at end of period	$ 2,376	$ (3,778)