DEBT OBLIGATIONS - Schedule of Contractual Maturities of Debt Obligations (Details) $ in Thousands	Jun. 30, 2015 USD ($)
Debt maturing in:
July 1 through December 31, 2015	$ 3,164,957
2016	4,783,237
2017	1,850,252
2018	513,000
Total	10,311,446
Nonrecourse [Member]
Debt maturing in:
July 1 through December 31, 2015	1,203,382
2016	4,386,775
2017	1,654,662
2018	513,000
Total	7,757,819
Recourse [Member]
Debt maturing in:
July 1 through December 31, 2015	1,961,575
2016	396,462
2017	195,590
2018	0
Total	$ 2,553,627