FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 2) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets:
Total securities	$ 417,519	$ 638,605
Corporate loans	5,188,610	6,506,564
Equity investments, at estimated fair value	262,946	181,378
Interests in joint ventures and partnerships, at estimated fair value	888,408	718,772
Derivatives:
Total derivative assets	40,852	33,566
Derivatives:
Total derivative liabilities	43,892	55,127
Successor Company
Assets:
Corporate debt securities	417,519	638,605
Liabilities:
Collateralized loan obligation secured notes	5,540,207	6,237,674
Successor Company | Recurring basis | Estimated Fair Value
Assets:
Total securities	417,519	638,605
Corporate loans	5,188,610	6,506,564
Equity investments, at estimated fair value	262,946	181,378
Interests in joint ventures and partnerships, at estimated fair value	888,408	718,772
Other assets		4,645
Derivatives:
Total derivative assets	40,852	33,566
Total	6,798,335	8,083,530
Liabilities:
Collateralized loan obligation secured notes	4,843,746	5,501,099
Derivatives:
Total derivative liabilities	43,892	55,127
Total	4,887,638	5,556,226
Successor Company | Recurring basis | Estimated Fair Value | Corporate Debt Securities
Assets:
Corporate debt securities	367,898	583,421
Successor Company | Recurring basis | Estimated Fair Value | Residential Mortgage- Backed Securities
Assets:
Residential mortgage-backed securities	49,621	55,184
Successor Company | Recurring basis | Estimated Fair Value | Interest rate swaps
Derivatives:
Derivative liabilities	41,743	54,071
Successor Company | Recurring basis | Estimated Fair Value | Total rate of return swaps
Derivatives:
Derivative liabilities		130
Successor Company | Recurring basis | Estimated Fair Value | Foreign exchange forward contracts
Derivatives:
Derivative assets	40,757	28,354
Derivatives:
Derivative liabilities	2,149	926
Successor Company | Recurring basis | Estimated Fair Value | Options
Derivatives:
Derivative assets	95	5,212
Successor Company | Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Total securities	0	0
Corporate loans	0	0
Equity investments, at estimated fair value	40,765	25,692
Interests in joint ventures and partnerships, at estimated fair value	0	0
Other assets		0
Derivatives:
Total derivative assets	0	0
Total	40,765	25,692
Liabilities:
Collateralized loan obligation secured notes	0	0
Derivatives:
Total derivative liabilities	0	0
Total	0	0
Successor Company | Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate Debt Securities
Assets:
Corporate debt securities	0	0
Successor Company | Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential Mortgage- Backed Securities
Assets:
Residential mortgage-backed securities	0	0
Successor Company | Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate swaps
Derivatives:
Derivative liabilities	0	0
Successor Company | Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Total rate of return swaps
Derivatives:
Derivative liabilities		0
Successor Company | Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign exchange forward contracts
Derivatives:
Derivative assets	0	0
Derivatives:
Derivative liabilities	0	0
Successor Company | Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Options
Derivatives:
Derivative assets	0	0
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2)
Assets:
Total securities	172,912	266,387
Corporate loans	4,889,876	6,159,487
Equity investments, at estimated fair value	75,533	73,967
Interests in joint ventures and partnerships, at estimated fair value	0	0
Other assets		4,645
Derivatives:
Total derivative assets	37,120	28,354
Total	5,175,441	6,532,840
Liabilities:
Collateralized loan obligation secured notes	4,843,746	0
Derivatives:
Total derivative liabilities	43,142	55,127
Total	4,886,888	55,127
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Corporate Debt Securities
Assets:
Corporate debt securities	172,912	266,387
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Residential Mortgage- Backed Securities
Assets:
Residential mortgage-backed securities	0	0
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Interest rate swaps
Derivatives:
Derivative liabilities	41,743	54,071
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Total rate of return swaps
Derivatives:
Derivative liabilities		130
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Foreign exchange forward contracts
Derivatives:
Derivative assets	37,120	28,354
Derivatives:
Derivative liabilities	1,399	926
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Options
Derivatives:
Derivative assets	0	0
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3)
Assets:
Total securities	244,607	372,218
Corporate loans	298,734	347,077
Equity investments, at estimated fair value	146,648	81,719
Interests in joint ventures and partnerships, at estimated fair value	888,408	718,772
Other assets		0
Derivatives:
Total derivative assets	3,732	5,212
Total	1,582,129	1,524,998
Liabilities:
Collateralized loan obligation secured notes	0	5,501,099
Derivatives:
Total derivative liabilities	750	0
Total	750	5,501,099
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3) | Corporate Debt Securities
Assets:
Corporate debt securities	194,986	317,034
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3) | Residential Mortgage- Backed Securities
Assets:
Residential mortgage-backed securities	49,621	55,184
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3) | Interest rate swaps
Derivatives:
Derivative liabilities	0	0
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3) | Total rate of return swaps
Derivatives:
Derivative liabilities		0
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3) | Foreign exchange forward contracts
Derivatives:
Derivative assets	3,637	0
Derivatives:
Derivative liabilities	750	0
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3) | Options
Derivatives:
Derivative assets	$ 95	$ 5,212