11. Fair Value Financial Assets (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets:
Cash and cash equivalents	$ 24,128	$ 12,966
Restricted cash and equivalents	129,450	104,445
Finance receivables, net	1,025,398	740,511
Finance receivables measured at fair value	21,217	59,668
Residual interest in securitizations	1,426	4,824
Accrued interest receivable	15,146	10,411
Liabilities:
Warehouse lines of credit	26,959	21,731
Accrued interest payable	2,733	2,795
Residual interest financing	20,000	13,773
Debt secured by receivables measured at fair value	16,888	57,107
Securitization trust debt	1,107,865	803,290
Senior secured debt	38,963	50,135
Subordinated renewable notes	20,640	23,281
Fair Value Inputs Level 1 [Member]
Assets:
Cash and cash equivalents	24,128	12,966
Restricted cash and equivalents	129,450	104,445
Finance receivables, net
Finance receivables measured at fair value
Residual interest in securitizations
Accrued interest receivable
Liabilities:
Warehouse lines of credit
Accrued interest payable
Residual interest financing
Debt secured by receivables measured at fair value
Securitization trust debt
Senior secured debt
Subordinated renewable notes
Level 2 [Member]
Assets:
Cash and cash equivalents
Restricted cash and equivalents
Finance receivables, net
Finance receivables measured at fair value
Residual interest in securitizations
Accrued interest receivable
Liabilities:
Warehouse lines of credit
Accrued interest payable
Residual interest financing
Debt secured by receivables measured at fair value
Securitization trust debt
Senior secured debt
Subordinated renewable notes
Level 3 [Member]
Assets:
Cash and cash equivalents
Restricted cash and equivalents
Finance receivables, net	1,025,398	740,511
Finance receivables measured at fair value	21,217	59,668
Residual interest in securitizations	1,426	4,824
Accrued interest receivable	15,146	10,411
Liabilities:
Warehouse lines of credit	26,959	21,731
Accrued interest payable	2,733	2,795
Residual interest financing	20,000	13,773
Debt secured by receivables measured at fair value	16,888	57,107
Securitization trust debt	1,107,865	803,290
Senior secured debt	38,963	50,135
Subordinated renewable notes	20,640	23,281
Carrying Value [Member]
Assets:
Cash and cash equivalents	24,128	12,966
Restricted cash and equivalents	129,450	104,445
Finance receivables, net	1,046,818	744,749
Finance receivables measured at fair value	21,217	59,668
Residual interest in securitizations	1,426	4,824
Accrued interest receivable	15,146	10,411
Liabilities:
Warehouse lines of credit	26,959	21,731
Accrued interest payable	2,733	2,795
Residual interest financing	20,000	13,773
Debt secured by receivables measured at fair value	16,888	57,107
Securitization trust debt	1,094,559	792,497
Senior secured debt	38,963	50,135
Subordinated renewable notes	$ 20,640	$ 23,281