Consolidated Statement Of Cash Flows - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS:
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		$ 21,171	$ (18,184)
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		9,370	14,322
Change in net unrealized (gain) loss on investments and financial derivatives, and foreign currency translation		(6,796)	24,894
Amortization of premiums and accretion of discounts (net)		15,618	10,333
Purchase of investments		(1,445,940)	(1,299,234)
Proceeds from disposition of investments		1,022,560	1,264,889
Proceeds from principal payments of investments		134,770	120,017
Proceeds from investments sold short		1,207,603	773,556
Repurchase of investments sold short		(1,116,008)	(905,408)
Payments on financial derivatives	[1]	(44,958)	(168,054)
Proceeds from financial derivatives	[1]	48,528	155,132
Share-based LTIP expense		189	199
Repurchase agreements		(81,840)	(10,303)
(Increase) decrease in assets:
Receivable for securities sold and financial derivatives		(39,012)	168,812
Due from brokers		30,717	(57,520)
Interest and principal receivable		547	1,359
Restricted cash		230	952
Other assets		(3,522)	2,383
Increase (decrease) in liabilities:
Due to brokers		(8,882)	(20,082)
Payable for securities purchased and financial derivatives		139,361	31,799
Accounts payable and accrued expenses		669	(571)
Other liabilities		102	(504)
Interest and dividends payable		517	717
Base management fee payable		(45)	(220)
Net cash provided by (used in) operating activities		(115,051)	89,284
Cash flows provided by (used in) financing activities:
Contributions from non-controlling interests		11,321	684
Shares repurchased		(2,868)	(6,624)
Dividends paid		(29,579)	(33,616)
Distributions to non-controlling interests		(8,050)	(2,228)
Proceeds from issuance of other secured borrowings		81,648	23,238
Principal payments on other secured borrowings		(11,837)	(10,205)
Borrowings under reverse repurchase agreements		7,089,080	3,220,229
Repayments of reverse repurchase agreements		(7,003,423)	(3,324,313)
Net cash provided by (used in) financing activities		126,292	(132,835)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		11,241	(43,551)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		123,274	183,909
CASH AND CASH EQUIVALENTS, END OF PERIOD		134,515	140,358
Supplemental disclosure of cash flow information:
Interest paid		12,554	7,442
Share-based LTIP awards (non-cash)		189	199
Aggregate TBA trade activity (buys sells) (non-cash)		11,157,765	11,246,156
Purchase of investments (non-cash)		(24,211)	0
Proceeds from principal payments of investments (non-cash)		4,315	0
Proceeds from the disposition of investments (non-cash)		25,693	0
Proceeds from Issuance of Securitized Debt Non Cash		17,175	0
Principal payments on other secured borrowings (non-cash)		$ (22,972)	$ 0

[1] Conformed to current period presentation.