EQUITY METHOD INVESTMENTS (Details 2) - USD ($) $ in Thousands	4 Months Ended	8 Months Ended	12 Months Ended
	Apr. 30, 2014	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2013
Credit
Equity Method Investment, Summarized Financial Information [Abstract]
Total assets		$ 639,567	$ 1,188,855
Total liabilities		208,812	574,635
Redeemable stock		0	0
Noncontrolling interests		0	0
Credit | Successor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues		22,535	87,561
Expenses		19,356	60,623
Net income (loss)		(24,364)	(41,201)
Credit | Predecessor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues	$ 3,967			$ 1,093
Expenses	4,357			132
Net income (loss)	11,437			(1,050)
Commercial Real Estate
Equity Method Investment, Summarized Financial Information [Abstract]
Total assets		959,488	878,878
Total liabilities		836,066	812,935
Redeemable stock		0	0
Noncontrolling interests		0	0
Commercial Real Estate | Successor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues		77,661	138,431
Expenses		80,685	148,463
Net income (loss)		(3,024)	21,629
Commercial Real Estate | Predecessor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues	30,338			83,300
Expenses	36,914			96,883
Net income (loss)	(6,576)			(13,583)
Natural Resources
Equity Method Investment, Summarized Financial Information [Abstract]
Total assets		1,488,275	723,063
Total liabilities		615,543	376,638
Redeemable stock		0	0
Noncontrolling interests		268	264
Natural Resources | Successor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues		77,038	179,482
Expenses		100,618	305,164
Net income (loss)		$ (58,869)	$ (522,601)
Natural Resources | Predecessor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues	2,578			3,625
Expenses	1,763			5,136
Net income (loss)	$ 815			$ (1,511)