Finance Receivables And Allowance For Credit Losses (Schedule Of Risk Category Of Loans) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Commercial [Member] | Grade, Pass [Member]
Risk category of loans	$ 1,110,329	$ 1,105,382
Commercial Real Estate - Construction [Member] | Grade, Pass [Member]
Risk category of loans	18,233	77,241
Commercial Real Estate - Other [Member] | Grade, Pass [Member]
Risk category of loans	936,709	729,243
Commercial [Member] | Grade, Criticized [Member]
Risk category of loans	45,244	38,629
Commercial Real Estate - Construction [Member] | Grade, Criticized [Member]
Risk category of loans	13,998	16,223
Commercial Real Estate - Other [Member] | Grade, Criticized [Member]
Risk category of loans	39,274	29,161
Commercial [Member] | Grade, Classified - Substandard [Member]
Risk category of loans	52,978	41,899
Commercial Real Estate - Construction [Member] | Grade, Classified - Substandard [Member]
Risk category of loans	11,653	7,552
Commercial Real Estate - Other [Member] | Grade, Classified - Substandard [Member]
Risk category of loans	35,790	52,559
Commercial [Member] | Grade, Classified - Doubtful [Member]
Risk category of loans	37,738	25,489
Commercial Real Estate - Construction [Member] | Grade, Classified - Doubtful [Member]
Risk category of loans	6,232	0
Commercial Real Estate - Other [Member] | Grade, Classified - Doubtful [Member]
Risk category of loans	66,485	30,416
Commercial [Member]
Risk category of loans	1,246,289	1,211,399
Commercial Real Estate - Construction [Member]
Risk category of loans	50,116	101,016
Commercial Real Estate - Other [Member]
Risk category of loans	$ 1,078,258	$ 841,379