Business Combinations (Schedule Of Purchased Performing And Impaired Loans) (Details) (VBB Acquisition [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Jul. 29, 2011
Business Acquisition [Line Items]
Contractual principal payments receivable		$ 70,893
Loans discount fair value adjustment	(7,500)	(13,964)
Fair value of acquired loans		56,929
Purchased Performing [Member]
Business Acquisition [Line Items]
Contractual principal payments receivable		30,671
Loans discount fair value adjustment		(1,274)
Fair value of acquired loans		29,397
Purchased Impaired [Member]
Business Acquisition [Line Items]
Contractual principal payments receivable		40,222
Loans discount fair value adjustment		(12,690)
Fair value of acquired loans		$ 27,532