CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023		Mar. 31, 2022
Cash Flows From Operating Activities
Net income	$ 89,949		$ 689,931
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Change in fair value of investments, net	243,258		147,119
Change in fair value of equity investments	2,098		(256)
Change in fair value of secured notes and bonds payable	2,500		(7,194)
(Gain) loss on settlement of investments, net	(167,609)		(61,184)
(Gain) loss on sale of originated residential mortgage loans, held-for-sale, net	(109,268)		(471,996)
(Gain) loss on transfer of loans to REO	(3,276)		(2,944)
Accretion and other amortization	(18,270)		(15,095)
Provision (reversal) for credit losses on securities, loans and real estate owned	(2,803)		3,740
Non-cash portions of servicing revenue, net	149,730		(645,018)
Deferred tax provision	(16,822)		201,354
Mortgage loans originated and purchased for sale, net of fees	(7,531,856)		(29,446,744)
Sales proceeds and loan repayment proceeds for residential mortgage loans, held-for-sale	8,227,517		33,244,922
Interest received from servicer advance investments, RMBS, loans and other	13,705		41,721
Changes in:
Servicer advances receivable, net	230,596		202,938
Other assets	50,472		(268,772)
Due to affiliate	0		(7,887)
Accrued expenses and other liabilities	21,346		285,517
Net cash provided by (used in) operating activities	1,181,267		3,890,152
Cash Flows From Investing Activities
Purchase of servicer advance investments	(232,446)		(257,807)
Purchase of MSRs, MSR financing receivables and servicer advances receivable	0		(655)
Purchase of RMBS	(2,883,278)		(1,006,483)
Purchase of residential mortgage loans	(1,269)		(7,182)
Purchase of SFR properties, real estate owned and other assets	(4,607)		(239,347)
Draws on revolving consumer loans	(6,831)		(7,163)
Net settlement of derivatives	225,560		65,436
Return of investments in Excess MSRs	7,821		2,680
Principal repayments from servicer advance investments	240,331		290,128
Principal repayments from RMBS	155,002		355,028
Principal repayments from residential mortgage loans	8,272		24,121
Principal repayments from consumer loans	24,784		39,935
Principal repayments from MSRs and MSR financing receivables	0		703
Proceeds from sale of MSRs and MSR financing receivables	1,357		454
Proceeds from sale of RMBS	1,869,053		0
Proceeds from sale of real estate owned	5,678		3,832
Net cash provided by (used in) investing activities	(590,573)		(736,320)
Cash Flows From Financing Activities
Repayments of secured financing agreements	(11,327,261)		(9,638,525)
Repayments of warehouse credit facilities	(8,473,149)		(33,378,329)
Net settlement of margin deposits under repurchase agreements and derivatives	(387,780)		137,418
Repayments of secured notes and bonds payable	(1,677,534)		(1,047,972)
Deferred financing fees	(2,103)		(4,472)
Dividends paid on common and preferred stock	(140,968)		(139,185)
Borrowings under secured financing agreements	12,240,027		10,081,997
Borrowings under warehouse credit facilities	8,062,420		29,622,712
Borrowings under secured notes and bonds payable	1,303,796		1,675,265
Repurchase of preferred stock	0		(3,814)
Noncontrolling interest in equity of consolidated subsidiaries - distributions	(5,430)		(8,879)
Payment of contingent consideration	0		(12,276)
Net cash provided by (used in) financing activities	(407,982)		(2,716,060)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	182,712		437,772
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	1,617,634		1,528,442
Cash, Cash Equivalents and Restricted Cash, End of Period	1,800,346		1,966,214
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	286,434		132,817
Cash paid during the period for income taxes	402		36
Supplemental Schedule of Non-Cash Investing and Financing Activities
Dividends declared but not paid on common and preferred stock	143,149		139,158
Transfer from residential mortgage loans to real estate owned and other assets	6,025		2,034
Real estate securities retained from loan securitizations	0		113,695
Residential mortgage loans subject to repurchase	1,189,907	[1]	1,700,426
Cashless exercise of 2020 Warrants (par)	$ 93		$ 0

[1] See Note 5 for details.