FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets:
Total securities	$ 592,270	$ 638,605
Corporate loans	6,031,524	6,506,564
Equity investments, at estimated fair value	201,593	181,378
Interests in joint ventures and partnerships, at estimated fair value	719,290	718,772
Derivatives:
Derivative assets	72,867	33,566
Derivatives:
Total derivative liabilities	55,562	55,127
Successor Company
Assets:
Corporate debt securities	592,270	638,605
Liabilities:
Collateralized loan obligation secured notes	5,949,477	6,237,674
Successor Company | Recurring basis | Estimated Fair Value
Assets:
Total securities	592,270	638,605
Corporate loans	6,031,524	6,506,564
Equity investments, at estimated fair value	201,593	181,378
Interests in joint ventures and partnerships, at estimated fair value	719,290	718,772
Other assets	3,992	4,645
Derivatives:
Derivative assets	72,867	33,566
Total	7,621,536	8,083,530
Liabilities:
Collateralized loan obligation secured notes	5,255,834	5,501,099
Derivatives:
Total derivative liabilities	55,562	55,127
Total	5,311,396	5,556,226
Successor Company | Recurring basis | Estimated Fair Value | Residential Mortgage- Backed Securities
Assets:
Residential mortgage-backed securities	53,935	55,184
Successor Company | Recurring basis | Estimated Fair Value | Corporate Debt Securities
Assets:
Corporate debt securities	538,335	583,421
Successor Company | Recurring basis | Estimated Fair Value | Interest rate swaps
Derivatives:
Derivative liabilities	53,801	54,071
Successor Company | Recurring basis | Estimated Fair Value | Total rate of return swaps
Derivatives:
Derivative liabilities	151	130
Successor Company | Recurring basis | Estimated Fair Value | Foreign exchange forward contracts
Derivatives:
Derivative assets	68,037	28,354
Derivatives:
Derivative liabilities	1,610	926
Successor Company | Recurring basis | Estimated Fair Value | Common stock warrants
Derivatives:
Derivative assets	521
Successor Company | Recurring basis | Estimated Fair Value | Options
Derivatives:
Derivative assets	4,309	5,212
Successor Company | Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Equity investments, at estimated fair value	23,505	25,692
Interests in joint ventures and partnerships, at estimated fair value		0
Derivatives:
Total	23,505	25,692
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2)
Assets:
Total securities	230,424	266,387
Corporate loans	5,695,338	6,159,487
Equity investments, at estimated fair value	74,769	73,967
Interests in joint ventures and partnerships, at estimated fair value	0
Other assets	3,992	4,645
Derivatives:
Derivative assets	68,037	28,354
Total	6,072,560	6,532,840
Liabilities:
Collateralized loan obligation secured notes	5,255,834	0
Derivatives:
Total derivative liabilities	55,562	55,127
Total	5,311,396	55,127
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Corporate Debt Securities
Assets:
Corporate debt securities	230,424	266,387
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Interest rate swaps
Derivatives:
Derivative liabilities	53,801	54,071
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Total rate of return swaps
Derivatives:
Derivative liabilities	151	130
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Foreign exchange forward contracts
Derivatives:
Derivative assets	68,037	28,354
Derivatives:
Derivative liabilities	1,610	926
Successor Company | Recurring basis | Significant Other Observable Inputs (Level 2) | Common stock warrants
Derivatives:
Derivative assets	0
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3)
Assets:
Total securities	361,846	372,218
Corporate loans	336,186	347,077
Equity investments, at estimated fair value	103,319	81,719
Interests in joint ventures and partnerships, at estimated fair value	719,290	718,772
Derivatives:
Derivative assets	4,830	5,212
Total	1,525,471	1,524,998
Liabilities:
Collateralized loan obligation secured notes	0	5,501,099
Derivatives:
Total derivative liabilities		0
Total	0	5,501,099
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3) | Residential Mortgage- Backed Securities
Assets:
Residential mortgage-backed securities	53,935	55,184
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3) | Corporate Debt Securities
Assets:
Corporate debt securities	307,911	317,034
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3) | Common stock warrants
Derivatives:
Derivative assets	521
Successor Company | Recurring basis | Significant Unobservable Inputs (Level 3) | Options
Derivatives:
Derivative assets	$ 4,309	$ 5,212