Condensed Consolidated Statements of Cash Flows (Unaudited) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)
Cash flows from operating activities
Net income (loss)	$ 139,515	$ (197,699)
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	(5,711)	10,216
Net (gain) loss on extinguishment of debt	(2,415)	0
Unrealized (depreciation) appreciation on investments allocable to noncontrolling interests	(1,975)	(15,535)
Net realized and unrealized (gain) loss on investments	(114,931)	153,567
Depreciation and net amortization	3,285	18,273
Net realized and unrealized (gain) loss on debt	(15,216)	63,173
Net realized and unrealized (gain) loss on debt to affiliates	2,613	0
Changes in assets and liabilities:
Interest receivable	699	1,217
Other assets	(2,267)	(16,611)
Related party payable	(75)	(1,225)
Accounts payable, accrued expenses and other liabilities	(1,328)	(13,274)
Accrued interest payable	4,178	3,181
Net cash provided by (used in) operating activities	6,372	5,283
Cash flows from investing activities
Principal payments from corporate loans	331,946	223,558
Principal payments from securities	27,554	17,133
Proceeds from sales of corporate loans	105,266	374,229
Proceeds from sales of securities	20,463	13,024
Proceeds from equity and other investments	23,969	75,852
Purchases of corporate loans	(949,510)	(363,541)
Purchases of securities	(2,842)	0
Purchases of equity and other investments	(18,443)	(14,615)
Net change in proceeds, purchases and settlements of derivatives	3,057	11,058
Net change in restricted cash and cash equivalents	11,345	110,295
Net cash provided by (used in) investing activities	(447,195)	446,993
Cash flows from financing activities
Issuance of collateralized loan obligation secured notes	605,162	0
Retirement of collateralized loan obligation secured notes	(80,378)	(361,550)
Proceeds from collateralized loan obligation warehouse facility	283,000	0
Repayment of collateralized loan obligation warehouse facility	(303,000)	0
Issuance of senior notes	372,356	0
Repayment of junior subordinated notes	(13,168)	0
Distributions on common shares	(53,432)	(38,314)
Distributions on preferred shares	(6,891)	(6,891)
Distributions to Parent	(16,652)	0
Capital distributions to noncontrolling interests	(3,066)	(6,005)
Capital contributions from noncontrolling interests	2,245	1,706
Other capitalized costs	(3,750)	0
Net cash provided by (used in) financing activities	782,426	(411,054)
Net increase (decrease) in cash and cash equivalents	341,603	41,222
Cash and cash equivalents at beginning of period	627,237	320,122
Cash and cash equivalents at end of period	968,840	361,344
Supplemental cash flow information
Cash paid for interest	35,396	41,104
Net cash paid (refunded) for income taxes	65	11
Non-cash investing and financing activities
Assets contributed from Parent	17,621	0
Preferred share distributions declared, not yet paid	$ 6,891	$ 6,891