Consolidated Statements of Cash Flows - USD ($) $ in Thousands		1 Months Ended	2 Months Ended	3 Months Ended				4 Months Ended	8 Months Ended	12 Months Ended
		Apr. 30, 2014	Jun. 30, 2014	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Apr. 30, 2014	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from financing activities
Cash and cash equivalents at beginning of period					$ 163,405					$ 163,405
Cash and cash equivalents at end of period				$ 320,122		$ 163,405			$ 163,405	320,122	$ 163,405
Successor Company
Net income (loss)			$ 45,144	(168,074)	(46,546)	(187,172)			(219,229)	(334,675)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Net realized and unrealized (gain) loss on derivatives and foreign exchange									18,507	(2,158)
Net (gain) loss on restructuring and extinguishment of debt									0	0
Unrealized (depreciation) appreciation on investments allocable to noncontrolling interests									5,956	(23,429)
Write-off of debt issuance costs									0	0
Lower of cost or estimated fair value adjustment on corporate loans held for sale									0	0
Provision for loan losses									0	0
Impairment charges									0	0
Share-based compensation									0	0
Net realized and unrealized (gain) loss on investments									343,416	451,138
Depreciation and net amortization									21,391	28,242
Net realized and unrealized (gain) loss on debt									(16,478)	19,659
Changes in assets and liabilities:
Interest receivable									(11,485)	26,607
Other assets									(21,117)	(33,780)
Related party payable									5,724	(1,512)
Preferred share distribution payable									0	0
Accounts payable, accrued expenses and other liabilities									(20,561)	30,949
Accrued interest payable									1,769	1,217
Accrued interest payable to affiliates									0	0
Net cash provided by (used in) operating activities									107,893	162,258
Cash flows from investing activities
Principal payments from corporate loans									634,536	1,401,760
Principal payments from securities									60,056	14,044
Proceeds from sales of corporate loans									575,099	1,509,737
Proceeds from sales of securities									38,342	173,075
Proceeds from equity and other investments									89,697	74,609
Purchases of corporate loans									(1,245,460)	(1,873,963)
Purchases of securities									(95,881)	(19,387)
Purchases of equity and other investments									(158,618)	(102,365)
Net change in proceeds, purchases and settlements of derivatives									(7,295)	22,176
Net change in restricted cash and cash equivalents									202,355	(39,867)
Net cash provided by (used in) investing activities									92,831	1,159,819
Cash flows from financing activities
Issuance of collateralized loan obligation secured notes									885,983	965,823
Retirement of collateralized loan obligation secured notes									(1,045,041)	(1,672,467)
Net proceeds from issuance of preferred shares									0	0
Distributions on common shares									(121,088)	(179,081)
Distributions on preferred shares	[1]								(13,782)	(27,564)
Distributions to Parent									(203,568)	(251,748)
Capital distributions to noncontrolling interests									0	(2,728)
Contributions from Parent									235,759	0
Capital contributions from Parent									605	0
Capital contributions from noncontrolling interests									1,110	8,867
Other capitalized costs									(7,810)	(6,462)
Net cash provided by (used in) financing activities									(247,732)	(1,165,360)
Net increase (decrease) in cash and cash equivalents									(47,008)	156,717
Cash and cash equivalents at beginning of period			210,413		$ 163,405				210,413	163,405
Cash and cash equivalents at end of period		$ 210,413		320,122		163,405		$ 210,413	163,405	320,122	163,405
Supplemental cash flow information
Cash paid for interest									114,939	167,215
Net cash paid (refunded) for income taxes									93	(4,532)
Non-cash investing and financing activities
Assets distributed to Parent									(292,425)	0
Assets contributed from Parent									239,085	251,748
Assets contributed from noncontrolling interests									105,015	0
Natural resources assets transferred out									(114,546)	0
Interest in Trinity transferred in									114,546	0
Preferred share distributions declared, not yet paid				$ 6,891		$ 6,891			6,891	6,891	6,891
Loans transferred from held for investment to held for sale									0	0
Conversion of convertible senior notes to common shares									0	0
Issuance of restricted common shares									0	0
Predecessor Company
Net income (loss)		(2,203)					$ 108,183	105,980				$ 293,230
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Net realized and unrealized (gain) loss on derivatives and foreign exchange								9,783				6,838
Net (gain) loss on restructuring and extinguishment of debt								0				20,015
Unrealized (depreciation) appreciation on investments allocable to noncontrolling interests								0				0
Write-off of debt issuance costs								1,472				6,674
Lower of cost or estimated fair value adjustment on corporate loans held for sale								(5,038)				5,899
Provision for loan losses								0				32,812
Impairment charges								4,391				19,512
Share-based compensation								1,018				4,559
Net realized and unrealized (gain) loss on investments								(60,906)				(182,485)
Depreciation and net amortization								15,832				7,123
Net realized and unrealized (gain) loss on debt								0				0
Changes in assets and liabilities:
Interest receivable								(6,753)				3,333
Other assets								(19,668)				(37,660)
Related party payable								(1,815)				(4,144)
Preferred share distribution payable								0				(6,891)
Accounts payable, accrued expenses and other liabilities								27,211				(13,674)
Accrued interest payable								(1,470)				3,056
Accrued interest payable to affiliates								0				(6,632)
Net cash provided by (used in) operating activities								70,037				151,565
Cash flows from investing activities
Principal payments from corporate loans								906,166				1,437,139
Principal payments from securities								21,223				169,646
Proceeds from sales of corporate loans								36,595				270,204
Proceeds from sales of securities								44,373				39,431
Proceeds from equity and other investments								48,911				155,132
Purchases of corporate loans								(886,230)				(2,099,033)
Purchases of securities								(78,106)				(228,131)
Purchases of equity and other investments								(104,301)				(513,933)
Net change in proceeds, purchases and settlements of derivatives								(7,265)				(3,110)
Net change in restricted cash and cash equivalents								(299,579)				546,011
Net cash provided by (used in) investing activities								(318,213)				(226,644)
Cash flows from financing activities
Issuance of collateralized loan obligation secured notes								648,197				665,188
Retirement of collateralized loan obligation secured notes								(221,914)				(839,625)
Net proceeds from issuance of preferred shares								0				361,622
Distributions on common shares								(45,061)				(184,314)
Distributions on preferred shares	[1]							(13,782)				(20,520)
Distributions to Parent								0				0
Capital distributions to noncontrolling interests								0				0
Contributions from Parent								0				0
Capital contributions from Parent								0				0
Capital contributions from noncontrolling interests								0				0
Other capitalized costs								(3,918)				(5,211)
Net cash provided by (used in) financing activities								301,422				(5,360)
Net increase (decrease) in cash and cash equivalents								53,246				(80,439)
Cash and cash equivalents at beginning of period			$ 210,413				$ 157,167	157,167	210,413		$ 157,167	237,606
Cash and cash equivalents at end of period		210,413						210,413				157,167
Supplemental cash flow information
Cash paid for interest								53,576				155,184
Net cash paid (refunded) for income taxes								157				7,685
Non-cash investing and financing activities
Assets distributed to Parent								0				0
Assets contributed from Parent								0				0
Assets contributed from noncontrolling interests								0				0
Natural resources assets transferred out								0				0
Interest in Trinity transferred in								0				0
Preferred share distributions declared, not yet paid		$ 0						0				0
Loans transferred from held for investment to held for sale								348,808				323,416
Conversion of convertible senior notes to common shares								0				186,254
Issuance of restricted common shares								0				3,282
Other Credit Facilities | Successor Company
Cash flows from financing activities
Proceeds from credit facilities									115,100	0
Repayment of credit facilities									(95,000)	0
Other Credit Facilities | Predecessor Company
Cash flows from financing activities
Proceeds from credit facilities								13,300				79,200
Repayment of credit facilities								(75,400)				(61,700)
CLO Warehouse Facility | Successor Company
Cash flows from financing activities
Proceeds from credit facilities									0	274,296
Repayment of credit facilities									$ 0	$ (274,296)
CLO Warehouse Facility | Predecessor Company
Cash flows from financing activities
Proceeds from credit facilities								0				0
Repayment of credit facilities								$ 0				$ 0

[1] For the four months ended April 30, 2014, $6.9 million of distributions on preferred shares was previously presented as "preferred share distribution payable" within operating activities of the consolidated statements of cash flows.