BORROWINGS (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 16, 2014	Dec. 18, 2014
Details of Company's borrowings
Carrying value	$ 5,255,834,000	$ 5,501,099,000
Successor Company
Details of Company's borrowings
Total borrowings	5,949,477,000	6,237,674,000
Total borrowings, carrying value	5,967,306,000	6,162,530,000
Collateral amount	6,031,562,000	6,528,921,000
Successor Company | CLO 2005-1 senior secured notes
Details of Company's borrowings
Par	185,604,000	192,384,000
Carrying value	187,166,000	192,260,000
Weighted Average Borrowing Rate (as a percent)	1.90%	1.84%
Weighted Average Remaining Maturity (in days)	757 days	847 days
Collateral amount	204,052,000	224,716,000
Successor Company | CLO 2005-2 senior secured notes
Details of Company's borrowings
Par	221,222,000	242,928,000
Carrying value	224,521,000	242,365,000
Weighted Average Borrowing Rate (as a percent)	0.72%	0.68%
Weighted Average Remaining Maturity (in days)	971 days	1061 days
Collateral amount	337,201,000	381,362,000
Successor Company | CLO 2006-1 senior secured notes
Details of Company's borrowings
Par		166,841,000
Carrying value		166,710,000
Weighted Average Borrowing Rate (as a percent)		1.28%
Weighted Average Remaining Maturity (in days)		1333 days
Collateral amount		400,165,000
Successor Company | CLO 2007-1 senior secured notes
Details of Company's borrowings
Par	1,765,059,000	1,906,409,000
Carrying value	1,794,221,000	1,891,228,000
Weighted Average Borrowing Rate (as a percent)	0.84%	0.80%
Weighted Average Remaining Maturity (in days)	2237 days	2327 days
Collateral amount	1,924,255,000	2,182,078,000
Successor Company | CLO 2007-1 mezzanine notes
Details of Company's borrowings
Par	489,723,000	489,723,000
Carrying value	497,814,000	486,575,000
Weighted Average Borrowing Rate (as a percent)	3.86%	3.84%
Weighted Average Remaining Maturity (in days)	2237 days	2327 days
Collateral amount	533,893,000	560,538,000
Successor Company | CLO 2007-1 subordinated notes
Details of Company's borrowings
Par	134,468,000	134,468,000
Carrying value	115,521,000	119,112,000
Weighted Average Borrowing Rate (as a percent)	16.31%	13.75%
Weighted Average Remaining Maturity (in days)	2237 days	2327 days
Collateral amount	146,596,000	153,912,000
Successor Company | CLO 2007-A subordinated notes
Details of Company's borrowings
Par	15,096,000	15,096,000
Carrying value	24,739,000	25,921,000
Weighted Average Borrowing Rate (as a percent)	6.73%	88.02%
Weighted Average Remaining Maturity (in days)	929 days	1019 days
Collateral amount	63,829,000	66,044,000
Successor Company | CLO 2011-1 senior debt
Details of Company's borrowings
Par	400,995,000	402,515,000
Carrying value	400,995,000	402,515,000
Weighted Average Borrowing Rate (as a percent)	1.61%	1.58%
Weighted Average Remaining Maturity (in days)	1233 days	1323 days
Collateral amount	489,314,000	508,625,000
Successor Company | CLO 2012-1 senior secured notes
Details of Company's borrowings
Par	367,500,000	367,500,000
Carrying value	369,669,000	364,063,000
Weighted Average Borrowing Rate (as a percent)	2.36%	2.33%
Weighted Average Remaining Maturity (in days)	3547 days	3637 days
Collateral amount	368,793,000	365,662,000
Successor Company | CLO 2012-1 subordinated notes
Details of Company's borrowings
Par	18,000,000	18,000,000
Carrying value	12,843,000	12,986,000
Weighted Average Borrowing Rate (as a percent)	14.55%	16.86%
Weighted Average Remaining Maturity (in days)	3547 days	3637 days
Collateral amount	18,063,000	17,910,000
Successor Company | CLO 2013-1 senior secured notes
Details of Company's borrowings
Par	458,500,000	458,500,000
Carrying value	456,463,000	441,153,000
Weighted Average Borrowing Rate (as a percent)	1.99%	9.60%
Weighted Average Remaining Maturity (in days)	3759 days	3849 days
Collateral amount	488,482,000	477,691,000
Successor Company | CLO 2013-2 senior secured notes
Details of Company's borrowings
Par	339,250,000	339,250,000
Carrying value	339,181,000	331,383,000
Weighted Average Borrowing Rate (as a percent)	2.24%	2.21%
Weighted Average Remaining Maturity (in days)	3951 days	4041 days
Collateral amount	360,116,000	357,722,000
Successor Company | CLO 9 senior secured notes
Details of Company's borrowings
Par	463,750,000	463,750,000	463,800,000.0
Carrying value	456,724,000	449,349,000
Weighted Average Borrowing Rate (as a percent)	2.26%	2.28%
Weighted Average Remaining Maturity (in days)	4216 days	4306 days
Collateral amount	470,211,000	474,072,000
Successor Company | CLO 9 subordinated notes
Details of Company's borrowings
Par	15,000,000	15,000,000	15,000,000.0
Carrying value	13,602,000	13,531,000
Weighted Average Borrowing Rate (as a percent)	0.00%	0.00%
Weighted Average Remaining Maturity (in days)	4216 days	4306 days
Collateral amount	15,209,000	15,334,000
Successor Company | CLO 10 senior notes
Details of Company's borrowings
Par	368,000,000	368,000,000		368,000,000.0
Carrying value	362,375,000	361,948,000
Weighted Average Borrowing Rate (as a percent)	2.50%	2.50%
Weighted Average Remaining Maturity (in days)	3912 days	4002 days
Collateral amount	388,721,000	343,090,000
Successor Company | Collaterized loan obligation secured notes
Details of Company's borrowings
Par	5,242,167,000	5,580,364,000
Carrying value	5,255,834,000	5,501,099,000
Collateral amount	5,808,735,000	6,528,921,000
Successor Company | CLO 11 Warehouse Facility
Details of Company's borrowings
Par	50,000,000
Carrying value	50,000,000
Weighted Average Borrowing Rate (as a percent)	1.52%
Weighted Average Remaining Maturity (in days)	37 days
Collateral amount	222,827,000
Successor Company | 8.375% Senior notes
Details of Company's borrowings
Par	258,750,000	258,750,000
Carrying value	290,567,000	290,861,000
Weighted Average Borrowing Rate (as a percent)	8.38%	8.38%
Weighted Average Remaining Maturity (in days)	9726 days	9816 days
Successor Company | 7.500% Senior notes
Details of Company's borrowings
Par	115,043,000	115,043,000
Carrying value	123,585,000	123,663,000
Weighted Average Borrowing Rate (as a percent)	7.50%	7.50%
Weighted Average Remaining Maturity (in days)	9851 days	9941 days
Successor Company | Junior subordinated notes
Details of Company's borrowings
Par	283,517,000	283,517,000
Carrying value	$ 247,320,000	$ 246,907,000
Weighted Average Borrowing Rate (as a percent)	5.40%	5.39%
Weighted Average Remaining Maturity (in days)	7859 days	7949 days