FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 3) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended		4 Months Ended	6 Months Ended
	Apr. 30, 2014	Jun. 30, 2014	Jun. 30, 2015	Mar. 31, 2014	Apr. 30, 2014	Jun. 30, 2015
Successor Company
Reconciliation of liabilities measured on Level 3 basis
Transfers from Level 1 into Level 2		$ 0	$ 0			$ 0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount			0			0
Successor Company | Collateralized Loan Obligation Secured Notes
Reconciliation of liabilities measured on Level 3 basis
Balance at the beginning of the period		5,663,665				5,501,099
Included in earnings		28,669
Transfers into Level 3		0
Transfers out of level 3		0				(5,501,099)
Purchases		52,594
Settlements		(197,014)
Balance at the end of the period	$ 5,663,665	5,547,914	0		$ 5,663,665	0
Change in unrealized gains or losses for the period included in earnings for liabilities held at the end of the reporting period		28,669				0
Successor Company | Corporate Debt Securities
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period		156,500	307,911			317,034
Included in earnings		2,185	(7,763)			(11,759)
Purchases		20,000	0			0
Sales		(3,966)	(76,366)			(80,579)
Settlements		(5,127)	2,109			1,195
Balance at the end of the period	156,500	169,592	225,891		156,500	225,891
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period		2,185	(11,907)			(14,418)
Successor Company | Residential Mortgage- Backed Securities
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period		59,623	53,935			55,184
Included in earnings		1,359	1,239			3,015
Sales		0
Settlements		(1,740)	(2,785)			(5,810)
Balance at the end of the period	59,623	59,242	52,389		59,623	52,389
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period		623	43			196
Successor Company | Corporate loans, at estimated fair value
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period		294,218	336,186			347,077
Included in earnings		2,951	(2,278)			(58,048)
Purchases		1,261	10,999			12,307
Sales		(2,912)	0			(25,511)
Settlements		4,764	(3,860)			65,222
Balance at the end of the period	294,218	300,282	341,047		294,218	341,047
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period		2,073	(2,374)			(57,161)
Successor Company | Equity Investments, at Estimated Fair Value
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period		157,765	103,319			81,719
Included in earnings		2,160	2,213			(21,114)
Transfers out of Level 3		(1,230)
Settlements		(17,535)	61,347			106,274
Balance at the end of the period	157,765	141,160	166,879		157,765	166,879
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period		2,160	2,213			(20,418)
Successor Company | Interests in Joint Ventures and Partnerships
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period		472,467	719,290			718,772
Included in earnings		21,690	12,204			(20,158)
Purchases		27,466	13,830			49,367
Settlements		(6,067)	(5,727)			(8,384)
Balance at the end of the period	472,467	515,556	739,597		472,467	739,597
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period		21,690	12,204			(19,982)
Successor Company | Foreign Exchange Options, Net
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period		8,854
Included in earnings		(1,798)
Balance at the end of the period	8,854	7,056			8,854
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period		(1,798)
Successor Company | Common stock warrants
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period			521			0
Included in earnings			(110)			(2,001)
Settlements			0			2,412
Balance at the end of the period			411			411
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period			(110)			(2,001)
Successor Company | Options
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period		6,684	4,309			5,212
Included in earnings		(509)	(1,399)			(2,302)
Balance at the end of the period	6,684	6,175	2,910		6,684	2,910
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period		(509)	$ (1,399)			$ (2,302)
Predecessor Company
Reconciliation of liabilities measured on Level 3 basis
Transfers from Level 1 into Level 2	0				0
Predecessor Company | Securities Available- For-Sale
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period	23,528	30,510		$ 23,401	23,401
Included in earnings	44			22
Included in other comprehensive income	33			121
Transfers into Level 3	6,937			0
Settlements	(32)			(16)
Balance at the end of the period	30,510			23,528	30,510
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	44				66
Predecessor Company | Other Securities, at Estimated Fair Value
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period	125,511	125,990		107,530	107,530
Included in earnings	479			3,059
Purchases	0			25,000
Settlements	0			(10,078)
Balance at the end of the period	125,990			125,511	125,990
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	479				2,683
Predecessor Company | Residential Mortgage- Backed Securities
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period	58,753	59,623		76,004	76,004
Included in earnings	1,416			3,088
Sales				(17,810)
Settlements	(546)			(2,529)
Balance at the end of the period	59,623			58,753	59,623
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	1,503				5,242
Predecessor Company | Corporate loans, at estimated fair value
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period	153,395	156,907		152,800	152,800
Included in earnings	1,240			(5,123)
Purchases	0			8,822
Settlements	2,272			(3,104)
Balance at the end of the period	156,907			153,395	156,907
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	1,240				4,445
Predecessor Company | Equity Investments, at Estimated Fair Value
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period	258,977	152,070		138,059	138,059
Included in earnings	12,126			9,076
Transfers out of Level 3	(119,033)			(8,751)
Settlements	0			120,593
Balance at the end of the period	152,070			258,977	152,070
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	12,126				20,499
Predecessor Company | Interests in Joint Ventures and Partnerships
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period	494,420	470,693		415,247	415,247
Included in earnings	(24,158)			22,377
Purchases	1,615			42,683
Settlements	(1,184)			14,113
Balance at the end of the period	470,693			494,420	470,693
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	(24,158)				(1,781)
Predecessor Company | Foreign Exchange Options, Net
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period	8,128	8,854		8,941	8,941
Included in earnings	726			(813)
Balance at the end of the period	8,854			8,128	8,854
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	726				(87)
Predecessor Company | Options
Reconciliation of assets measured on Level 3 basis
Balance at the beginning of the period	6,492	$ 6,684		6,794	6,794
Included in earnings	192			(302)
Balance at the end of the period	6,684			$ 6,492	6,684
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	$ 192				$ (110)