FAIR VALUE (Quantitative Information) (Details) (USD $) In Thousands, unless otherwise specified							6 Months Ended				6 Months Ended									6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Level 3 [Member]	Dec. 31, 2013 Level 3 [Member]	Jun. 30, 2014 Recurring [Member] Level 3 [Member]	Dec. 31, 2013 Recurring [Member] Level 3 [Member]	Jun. 30, 2014 Recurring [Member] Level 3 [Member] Discounted Cash Flow [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Mortgage banking interest rate lock commitments [Member]	Dec. 31, 2013 Recurring [Member] Level 3 [Member] Mortgage banking interest rate lock commitments [Member]	Jun. 30, 2014 Recurring [Member] Level 3 [Member] Mortgage banking interest rate lock commitments [Member] Discounted Cash Flow [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Mortgage banking interest rate lock commitments [Member] Discounted Cash Flow [Member] Minimum [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Mortgage banking interest rate lock commitments [Member] Discounted Cash Flow [Member] Maximum [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Mortgage banking interest rate lock commitments [Member] Discounted Cash Flow [Member] Weighted average [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Financing bonds [Member] Discounted Cash Flow [Member]	Jun. 30, 2014 Recurring [Member] Level 3 [Member] Financing bonds [Member] Discounted Cash Flow [Member] Minimum [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Financing bonds [Member] Discounted Cash Flow [Member] Maximum [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Financing bonds [Member] Discounted Cash Flow [Member] Weighted average [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Sale-lease back securities [Member] Consensus Pricing [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Retail installment contracts held for investment [Member] Discounted Cash Flow [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Retail installment contracts held for investment [Member] Discounted Cash Flow [Member] Minimum [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Retail installment contracts held for investment [Member] Discounted Cash Flow [Member] Maximum [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Retail installment contracts held for investment [Member] Discounted Cash Flow [Member] Weighted average [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Mortgage servicing rights [Member] Discounted Cash Flow [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Mortgage servicing rights [Member] Discounted Cash Flow [Member] Minimum [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Mortgage servicing rights [Member] Discounted Cash Flow [Member] Maximum [Member]		Jun. 30, 2014 Recurring [Member] Level 3 [Member] Mortgage servicing rights [Member] Discounted Cash Flow [Member] Weighted average [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Financing bonds																			$ 1,190,008
Available-for-sale at fair value	11,675,042	11,646,240	1,243,872	52,940	1,243,872	52,940																				53,864	[1]
Retail installment contracts held for investment	1,273,072	0			1,273,072																							1,273,072
Mortgage servicing rights			124,118	141,787	124,118	141,787																														124,118
Derivative assets at fair value	$ 251,741	$ 222,491	$ 4,102	$ 561					$ 4,092	$ 547	$ 4,092
Fair Value Inputs [Abstract]
Discount rate																				0.51%	[2]	2.01%	[2]	1.24%	[2]					5.29%	[3]	12.00%	[3]	7.12%	[3]	9.55%	[4]
Offered quotes																										136.47%	[5]
ABS																												40.00%	[6]
Prepayment rate (CPR)							11.00%	[7]																														0.54%	[8]	39.20%	[8]	10.27%	[8]
Recovery rate																														25.00%	[9]	47.00%	[9]	42.05%	[9]
Pull through percentage											72.99%	[10]
MSR value													0.69%	[11]	1.02%	[11]	0.96%	[11]

[1] Consensus pricing refers to fair value estimates that are generally developed using information such as dealer quotes or other third-party valuations or comparable asset prices.

[2] Based on the applicable term and discount index.

[3] Based on the cost of funding of debt issuance and recent historical equity yields.

[4] Based on the nature of the input, a range or weighted average does not exist.

[5] Based on the nature of the input, a range or weighted average does not exist. For sale-lease back securities, the Company owns one security.

[6] Based on the historical default rate and adjustments to reflect voluntary prepayments.

[7] Based on the analysis of available data from a comparable market securitization of similar assets.

[8] Average CPR projected from collateral stratified by loan type, note rate and maturity.

[9] Based on the average severity utilizing reported severity rates and loss severity utilizing available market data from a comparable securitized pool.

[10] Historical weighted average based on principal balance calculated as the percentage of loans originated for sale divided by total commitments less outstanding commitments.

[11] MSR value is the estimated value of the servicing right embedded in the underlying loan, expressed in basis points of outstanding unpaid principal balance.