Consolidated Statement Of Cash Flows - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017
INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH:
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		$ 50,981	$ 27,766
Reconciliation of the net increase (decrease) in equity resulting from operations to net cash provided by (used in) operating activities:
Net realized (gain) loss on investments, financial derivatives, and foreign currency transactions		(19,335)	13,018
Change in net unrealized (gain) loss on investments, other secured borrowings, financial derivatives, and foreign currency translation		7,263	(7,472)
Amortization of premiums and accretion of discounts (net)		35,130	23,010
Purchase of investments		(2,626,320)	(1,847,795)
Proceeds from disposition of investments		1,558,821	1,378,115
Proceeds from principal payments of investments		383,847	214,636
Proceeds from investments sold short		1,926,781	1,456,930
Repurchase of investments sold short		(1,858,064)	(1,382,642)
Payments on financial derivatives		(78,447)	(76,667)
Proceeds from financial derivatives		77,314	79,207
Amortization of deferred debt issuance costs		198	30
Share-based long term incentive plan unit expense		296	285
Interest income related to consolidated securitization trust	[1]	(2,493)	0
Interest expense related to consolidated securitization trust	[1]	2,493	0
Repurchase agreements		(4,473)	(8,251)
(Increase) decrease in assets(2):
Receivable for securities sold and financial derivatives		(194,952)	(53,941)
Due from brokers		56,489	(14,522)
Interest and principal receivable		(8,947)	(3,302)
Other assets		38,563	190
Increase (decrease) in liabilities:
Due to brokers		2,830	(9,167)
Payable for securities purchased and financial derivatives		228,105	84,549
Accounts payable and accrued expenses		1,452	515
Incentive fee payable		424	0
Other liabilities		700	181
Interest and dividends payable		547	1,408
Base management fee payable to affiliate		(283)	(255)
Net cash provided by (used in) operating activities(2)		(421,051)	(124,174)
Cash flows provided by (used in) financing activities:
Contributions from non-controlling interests		11,900	14,201
Shares repurchased		(17,593)	(4,791)
Dividends paid		(38,152)	(44,336)
Distributions to non-controlling interests		(11,744)	(8,178)
Proceeds from issuance of Other secured borrowings		83,380	94,878
Principal payments on Other secured borrowings		(27,099)	(21,020)
Proceeds from Issuance of Senior Long-term Debt		0	86,000
Payments of Debt Issuance Costs		0	(890)
Borrowings under reverse repurchase agreements		6,771,029	8,663,470
Repayments of reverse repurchase agreements		(6,344,305)	(8,667,241)
Net cash provided by (used in) financing activities		427,416	112,093
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH(2)		6,365	(12,081)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, BEGINNING OF PERIOD	[2]	47,658	123,929
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, END OF PERIOD	[2]	54,023	111,848
Supplemental disclosure of cash flow information:
Interest paid		40,097	19,683
Share-based long term incentive plan unit awards (non-cash)		296	285
Aggregate TBA trade activity (buys sells) (non-cash)		21,475,863	17,198,330
Purchase of investments (non-cash)		(15,533)	(25,318)
Proceeds from principal payments of investments (non-cash)		34,697	6,815
Proceeds from the disposition of investments (non-cash)		15,533	26,800
Proceeds received from Other secured borrowings, at fair value (non-cash)		0	17,175
Principal payments on Other secured borrowings (non-cash)		0	(25,473)
Principal payments on Other secured borrowings, at fair value (non-cash)		(34,697)	0
Shares Issued In Connection With Incentive Fee Payment Non-Cash		$ 29	$ 0

[1] Related to non-qualified mortgage securitization transaction. See Note 6 for further details.

[2] Conformed to current period presentation.