Finance Receivables And Allowance For Credit Losses (Schedule Of Risk Category Of Loans) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Commercial [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	$ 1,216,654	$ 1,211,399
Commercial Real Estate - Construction [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	46,141	101,016
Commercial Real Estate - Other [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	1,021,229	841,379
Grade, Pass [Member] | Commercial [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	1,103,556	1,105,382
Grade, Pass [Member] | Commercial Real Estate - Construction [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	16,841	77,241
Grade, Pass [Member] | Commercial Real Estate - Other [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	895,543	729,243
Grade, Criticized [Member] | Commercial [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	36,212	38,629
Grade, Criticized [Member] | Commercial Real Estate - Construction [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	13,605	16,223
Grade, Criticized [Member] | Commercial Real Estate - Other [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	30,331	29,161
Grade, Classified - Substandard [Member] | Commercial [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	41,695	41,899
Grade, Classified - Substandard [Member] | Commercial Real Estate - Construction [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	10,147	7,552
Grade, Classified - Substandard [Member] | Commercial Real Estate - Other [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	34,478	52,559
Grade, Classified - Doubtful [Member] | Commercial [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	35,191	25,489
Grade, Classified - Doubtful [Member] | Commercial Real Estate - Construction [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	5,548	0
Grade, Classified - Doubtful [Member] | Commercial Real Estate - Other [Member]
Risk Category Of Loans [Line Items]
Risk category of loans	$ 60,877	$ 30,416