Loans Receivables (Summary Of Information Related To New Consumer Loan Assignments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Contractual net cash flows at the time of assignment	$ 516,852	[1]	$ 486,416	[1]	$ 1,164,019	[1]	$ 1,077,883	[1]
Expected net cash flows at the time of assignment	469,039	[2]	441,094	[2]	1,051,968	[2]	979,305	[2]
Fair value at the time of assignment	326,919	[3]	304,568	[3]	736,100	[3]	673,702	[3]
Dealer Loans [Member]
Contractual net cash flows at the time of assignment	465,139	[1]	424,471	[1]	1,041,121	[1]	947,451	[1]
Expected net cash flows at the time of assignment	431,749	[2]	395,540	[2]	963,777	[2]	883,308	[2]
Fair value at the time of assignment	300,954	[3]	273,799	[3]	675,346	[3]	610,207	[3]
Purchased Loans [Member]
Contractual net cash flows at the time of assignment	51,713	[1]	61,945	[1]	122,898	[1]	130,432	[1]
Expected net cash flows at the time of assignment	37,290	[2]	45,554	[2]	88,191	[2]	95,997	[2]
Fair value at the time of assignment	$ 25,965	[3]	$ 30,769	[3]	$ 60,754	[3]	$ 63,495	[3]

[1] The Dealer Loans amount represents the repayments that we were contractually owed at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related Dealer Holdback payments that we would be required to make if we collected all of the contractual repayments.  The Purchased Loans amount represents the repayments that we were contractually owed at the time of assignment on Consumer Loans assigned under our Purchase Program.

[2] The Dealer Loans amount represents the repayments that we expected to collect at the time of assignment on Consumer Loans assigned under our Portfolio Program, less the related Dealer Holdback payments that we expected to make.  The Purchased Loans amount represents the repayments that we expected to collect at the time of assignment on Consumer Loans assigned under our Purchase Program.

[3] The Dealer Loans amount represents advances paid to Dealers on Consumer Loans assigned under our Portfolio Program.  The Purchased Loans amount represents one-time payments made to Dealers to purchase Consumer Loans assigned under our Purchase Program.