Finance Receivables And Allowance For Credit Losses (Schedule Of Average Balance And Interest Income Recognized On Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 64,194		$ 51,217
Interest Income Recognized	2,214	[1]	1,279	[1]
Commercial [Member] | Impaired Financing Receivable With No Related Allowance [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	8,105		4,972
Interest Income Recognized	357	[1]	61	[1]
Commercial [Member] | Impaired Financing Receivable With Related Allowance [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	19,786		19,129
Interest Income Recognized	679	[1]	545	[1]
Commercial Real Estate - Construction [Member] | Impaired Financing Receivable With No Related Allowance [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	305		0
Interest Income Recognized	0	[1]	0	[1]
Commercial Real Estate - Construction [Member] | Impaired Financing Receivable With Related Allowance [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,128		135
Interest Income Recognized	89	[1]	0	[1]
Commercial Real Estate - Other [Member] | Impaired Financing Receivable With No Related Allowance [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	14,346		9,693
Interest Income Recognized	463	[1]	250	[1]
Commercial Real Estate - Other [Member] | Impaired Financing Receivable With Related Allowance [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	20,524		17,288
Interest Income Recognized	$ 626	[1]	$ 423	[1]

[1] The Company does not record interest on nonaccrual loans until principal is recovered.