EQUITY INVESTMENTS AND INTERESTS IN JOINT VENTURES AND PARTNERSHIPS (Details 3) - USD ($) $ in Thousands	4 Months Ended	8 Months Ended	12 Months Ended
	Apr. 30, 2014	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015
Credit
Equity Method Investment, Summarized Financial Information [Abstract]
Total assets			$ 761,512	$ 628,165
Total liabilities			532,693	418,281
Redeemable stock			0	0
Noncontrolling interests			0	0
Credit | Successor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues		$ 14,157	45,332	29,503
Expenses		19,325	55,412	40,408
Net income (loss) (2)		(19,118)	12,709	(20,796)
Credit | Predecessor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues	$ 3,967
Expenses	4,350
Net income (loss) (2)	8,741
Commercial Real Estate
Equity Method Investment, Summarized Financial Information [Abstract]
Total assets			710,688	878,878
Total liabilities			682,865	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	186,252	138,431
Expenses		80,685	124,070	148,463
Net income (loss) (2)		(3,024)	62,181	21,629
Commercial Real Estate | Predecessor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues	30,338
Expenses	36,914
Net income (loss) (2)	(6,576)
Natural Resources
Equity Method Investment, Summarized Financial Information [Abstract]
Total assets			137,518	137,128
Total liabilities			0	90
Redeemable stock			0	0
Noncontrolling interests			0	0
Natural Resources | Successor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues		5,057	6,479	4,673
Expenses		3,600	791	5,685
Net income (loss) (2)		$ 1,457	$ 5,688	$ (1,012)
Natural Resources | Predecessor Company
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues	2,579
Expenses	1,763
Net income (loss) (2)	$ 815