Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash Flows From Operating Activities
Net income (loss)	$ (48,296)	$ 49,084
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized loss on RMBS, available-for-sale, net	0	5,002
Unrealized gain (loss) on investments in Servicing Related Assets	71,217	(12,133)
Realized loss on derivatives, net	7,841	2,020
Unrealized (gain) loss on derivatives, net	12,091	(25,635)
Realized (gain) on TBA dollar rolls, net	(643)	(602)
Amortization of premiums on RMBS, available-for-sale	4,794	7,819
Amortization of deferred financing costs	501	66
LTIP-OP Unit awards	514	300
Changes in:
Receivables and other assets	(8,747)	(2,015)
Due to affiliates	643	671
Accrued interest on derivatives	(3,105)	8
Dividends payable	(1,478)	1,586
Accrued expenses and other liabilities	883	12,891
Net cash provided by operating activities	36,215	39,062
Cash Flows From Investing Activities
Purchase of RMBS	(423,208)	(342,612)
Principal paydown of RMBS	93,701	84,238
Proceeds from sale of RMBS	0	186,262
Acquisition of MSRs	(50,009)	(96,609)
Purchase of derivatives	(393)	(1,838)
Proceeds from sale of derivatives	7,470	56
Net cash used in investing activities	(372,439)	(170,503)
Cash Flows From Financing Activities
Borrowings under repurchase agreements	3,454,895	3,603,964
Repayments of repurchase agreements	(3,110,976)	(3,577,192)
Proceeds from derivative financing	(16,566)	14,577
Proceeds from bank loans	10,782	41,195
Principal paydown of bank loans	(16,799)	(1,004)
Dividends paid	(20,878)	(16,524)
LTIP-OP Units distributions paid	(267)	(155)
Conversion of OP units	(103)	0
Issuance of common stock, net of offering costs	4,020	53,619
Issuance of preferred stock, net of offering costs	49,642	3,981
Net cash provided by financing activities	353,750	122,461
Net Increase in Cash, Cash Equivalents and Restricted Cash	17,526	(8,980)
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	40,019	56,495
Cash, Cash Equivalents and Restricted Cash, End of Period	57,545	47,515
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest expense	21,411	15,368
Dividends declared but not paid	$ 10,369	$ 8,859