Consumer Loans, Credit Quality Information And Allowances And Liabilities For Losses On Consumer Loans (Narrative) (Details) (USD $)	Sep. 30, 2011	Jun. 30, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Dec. 31, 2009
Consumer Loans, Credit Quality Information And Allowances And Liabilities For Losses On Consumer Loans [Abstract]
Allowance deducted from the carrying value of consumer loans	$ 47,335,000	$ 37,211,000	$ 38,953,000	$ 45,586,000	$ 36,723,000	$ 27,350,000
Active consumer loans owned by third-party lenders	51,200,000		48,800,000	48,400,000
Accrual for losses on consumer loan guaranty obligations	$ 2,500,000		$ 2,800,000	$ 2,800,000