Finance Receivables And Allowance For Credit Losses (Schedule Of Activity Of Purchased Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	$ 83,395	$ 65,684
Carrying amount, net of allowance	79,120	63,982
Allowance for loan losses	4,275	1,702
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	7,859	1,143
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	52,981	23,059
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	22,432	41,064
Residential [Member]
Financing Receivable, Impaired [Line Items]
Purchased impaired loans	$ 123	$ 418