Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash Flows From Operating Activities
Net income (loss)	$ 9,615	$ (61,519)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss on RMBS, available-for-sale, net	(3,077)	19,312
Unrealized (gain) loss on investments in Servicing Related Assets	(1,963)	110,878
Realized loss on investments in MSRs, net	0	11,347
Realized (gain) loss on acquired assets, net	(34)	502
Realized loss on derivatives, net	14,880	14,198
Unrealized (gain) loss on derivatives, net	4,511	(47,619)
Realized gain on TBA dollar rolls, net	(6,243)	(1,927)
Amortization of premiums on RMBS, available-for-sale	8,464	7,470
Amortization of deferred financing costs	99	288
LTIP-OP Unit awards	522	571
Changes in:
Receivables and other assets, net	2,540	(7,435)
Due to affiliates	1,318	(120)
Accrued interest on derivatives, net	(2,234)	(3,025)
Dividends payable	15	(2,048)
Accrued expenses and other liabilities, net	(257)	(11,034)
Net cash provided by operating activities	28,156	29,839
Cash Flows From Investing Activities
Purchase of RMBS	(338,186)	(580,466)
Principal paydown of RMBS	151,367	151,507
Proceeds from sale of RMBS	389,531	1,406,447
Proceeds from sale of MSRs	0	15,831
Acquisition of MSRs	(35,617)	(24,783)
Payments for settlement of derivatives	(8,548)	(890)
Proceeds from settlement of derivatives	0	42,567
Net cash provided by investing activities	158,547	1,010,213
Cash Flows From Financing Activities
Borrowings under repurchase agreements	3,036,304	4,510,387
Repayments of repurchase agreements	(3,289,235)	(5,452,707)
Proceeds from derivative financing	(9,000)	(11,446)
Proceeds from bank loans	23,500	18,204
Principal paydown of bank loans	0	(53,701)
Dividends paid	(14,160)	(16,141)
LTIP-OP Units distributions paid	(178)	(169)
Conversion of OP units	(147)	(76)
Redemption of OP units for cash	(69)	0
Issuance of common stock, net of offering costs	252	3,481
Repurchase of common stock	0	(1,748)
Net cash used in financing activities	(252,733)	(1,003,916)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(66,030)	36,136
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	130,218	91,708
Cash, Cash Equivalents and Restricted Cash, End of Period	64,188	127,844
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest expense	461	15,429
Cash paid during the period for income taxes	47	5
Supplemental Schedule of Non-Cash Investing and Financing Activities
Dividends declared but not paid	6,740	6,720
Purchase of RMBS, settled after period end	$ 0	$ 35,898