Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash Flows from Operating Activities:
Net Income	$ 59,353	$ 88,138	$ 70,682
Adjustments to Reconcile Net Income to Net Cash (Used in) Provided by Operating Activities:
Provision for Credit Losses	253,603	207,198	175,900
Depreciation Expense	20,150	16,075	13,751
Amortization of Debt Issuance Costs and Debt Premium and Discount	8,163	11,880	17,610
Non-Cash Compensation Expense	1,546	2,789	1,125
Loss (Gain) from Disposal of Property and Equipment	(153)	81	206
Originations of Finance Receivables	(917,093)	(829,164)	(747,329)
Collections and Recoveries on Finance Receivable Principal Balances	559,517	549,888	492,294
(Increase) Decrease in Accrued Interest Receivable and Loan Origination Costs	(4,252)	(1,011)	726
(Increase) in Inventory	(58,403)	(66,286)	(30,704)
(Increase) in Other Assets	(3,903)	(12,282)	(12,029)
Increase in Accounts Payable, Accrued Expenses and Other Liabilities	11,574	9,059	25,679
Increase (Decrease) in Accrued Expenses-Related Party	20	(1,561)	(1,974)
Net Cash (Used in) Provided By Operating Activities	(69,878)	(25,196)	5,937
Cash Flows from Investing Activities:
Originations of Dealer Finance Receivables	(45,438)	0	0
Collections and Recoveries of Dealer Finance Receivables	4,506	0	0
Proceeds from Disposal of Property and Equipment	1,932	519	423
Purchase of Property and Equipment	(25,567)	(44,792)	(20,881)
Net Cash (Used in) Investing Activities	(64,567)	(44,273)	(20,458)
Cash Flows from Financing Activities:
Increase (Decrease) in Restricted Cash	15,421	18,193	(28,982)
Deposits into Investments Held in Trust	(15,864)	(13,199)	(4,500)
Change in Investments Held in Trust and Collection Account Cash	(6,913)	(22,819)	35,655
Additions to Portfolio Term Financings	857,246	707,947	387,304
Repayments of Portfolio Term Financings	(590,151)	(339,110)	(768,850)
Additions to Portfolio Warehouse Facilities	827,300	970,600	940,150
Repayments of Portfolio Warehouse Facilities	(911,492)	(1,232,215)	(614,649)
Additions to Senior Secured Notes Payable	0	0	161,109
Additions to Other Secured Notes Payable	83,968	44,500	2,776
Repayments of Other Secured Notes Payable	(65,982)	(542)	(22,715)
Repayments of Senior Unsecured Notes Payable	0	0	(1,500)
Payment of Debt Issuance Costs	(7,343)	(9,788)	(22,816)
Dividend Distributions	(51,195)	(51,845)	(46,310)
Net Cash Provided by Financing Activities	134,995	71,722	16,672
Net Increase in Cash and Cash Equivalents	550	2,253	2,151
Cash and Cash Equivalents at Beginning of Period	25,930	23,677	21,526
Cash and Cash Equivalents at End of Period	26,480	25,930	23,677
Supplemental Statement of Cash Flow Information:
Interest Paid	72,872	70,648	83,694
Interest Paid-Related Party	261	2,680	15,024
Income Taxes Paid	1,506	1,078	1,184
Supplemental Statement of Non-Cash Investing and Financing Activities:
Purchase of Property and Equipment Under Capital Lease	91	922	3,755
Disposal of Fully Depreciated Property & Equipment	1,746	1,855	4,504
Exchange of Other Secured Notes Payable to Equity—Related Party	0	0	60,088
Exchange of Subordinated Notes Payable to Equity—Related Party	0	0	40,000
Exchange of Other Secured Notes Payable-Related Party to Senior Secured Notes Payable	0	0	2,000
Exchange of Subordinated Notes Payable-Related Party to Senior Secured Notes Payable	0	0	35,000
Loss on Extinguishment of Debt	$ 0	$ 0	$ (3,418)