Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022		Sep. 30, 2021
Cash Flows From Operating Activities
Net income	$ 877,452		$ 617,743
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Change in fair value of investments, net	(587,181)		(1,224)
Change in fair value of equity investments	8,535		(5,929)
Change in fair value of secured notes and bonds payable	(50,279)		(5,245)
(Gain) loss on settlement of investments, net	848,334		188,919
(Gain) loss on sale of originated residential mortgage loans, held-for-sale, net	(980,266)		(1,257,094)
(Gain) loss on transfer of loans to REO	(6,263)		(3,412)
Accretion and other amortization	(45,230)		(36,559)
Provision (reversal) for credit losses on securities, loans and real estate owned	14,272		(47,637)
Non-cash portions of servicing revenue, net	(894,778)		421,332
Deferred tax provision	297,517		119,679
Mortgage loans originated and purchased for sale, net of fees	(65,446,856)		(90,408,805)
Sales proceeds and loan repayment proceeds for residential mortgage loans, held-for-sale	72,072,003		89,660,032
Interest received from servicer advance investments, RMBS, loans and other	46,797		107,899
Changes in:
Servicer advances receivable, net	332,902		303,841
Other assets	(54,485)		(112,329)
Due to affiliates	(17,819)		(555)
Accrued expenses and other liabilities	317,256		(227,151)
Net cash provided by (used in) operating activities	6,731,911		(686,495)
Cash Flows From Investing Activities
Business acquisitions, net of cash acquired	0		(811,207)
Purchase of servicer advance investments	(744,671)		(976,629)
Purchase of MSRs, MSR financing receivables and servicer advances receivable	(1,259)		(15,617)
Purchase of RMBS	(9,597,580)		(6,098,841)
Purchase of residential mortgage loans	(7,182)		0
Purchase of SFR properties, real estate owned and other assets	(396,981)		(631,489)
Draws on revolving consumer loans	(22,070)		(21,680)
Net settlement of derivatives	282,827		(140,512)
Return of investments in Excess MSRs	12,264		40,835
Principal repayments from servicer advance investments	791,653		1,034,242
Principal repayments from RMBS	915,913		1,810,195
Principal repayments from residential mortgage loans	69,020		86,878
Principal repayments from consumer loans	112,228		184,057
Principal repayments from MSRs and MSR financing receivables	1,509		1,086
Proceeds from sale of MSRs and MSR financing receivables	3,975		59,163
Proceeds from sale of RMBS	7,716,127		8,238,924
Proceeds from sale of real estate owned	9,652		47,638
Net cash provided by (used in) investing activities	(854,575)		2,807,043
Cash Flows From Financing Activities
Repayments of secured financing agreements	(39,920,856)		(58,118,431)
Repayments of warehouse credit facilities	(73,028,747)		(88,254,304)
Net settlement of margin deposits under repurchase agreements and derivatives	1,007,970		178,745
Repayments of secured notes and bonds payable	(3,174,439)		(5,920,361)
Deferred financing fees	(8,992)		(4,385)
Dividends paid on common and preferred stock	(417,445)		(302,297)
Borrowings under secured financing agreements	39,713,905		54,297,394
Borrowings under warehouse credit facilities	66,296,292		90,195,545
Borrowings under secured notes and bonds payable	4,101,314		5,402,819
Issuance of common stock	0		512,012
Issuance of preferred stock	0		449,506
Repurchase of preferred stock	(3,814)		0
Costs related to issuance of common stock	0		(525)
Noncontrolling interest in equity of consolidated subsidiaries - distributions	(21,391)		(45,017)
Payment of contingent consideration	0		(7,776)
Purchase of  noncontrolling interest in the Buyer at a discount	0		(22,523)
Net cash provided by (used in) financing activities	(5,456,203)		(1,639,598)
Net Increase (Decrease) in Cash, Cash Equivalents, and Restricted Cash	421,133		480,950
Cash, Cash Equivalents, and Restricted Cash, Beginning of Period	1,528,442		1,080,473
Cash, Cash Equivalents, and Restricted Cash, End of Period	1,949,575		1,561,423
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	468,991		365,241
Cash paid during the period for income taxes	1,757		20,732
Supplemental Schedule of Non-Cash Investing and Financing Activities
Dividends declared but not paid on common and preferred stock	140,856		136,246
Transfer from residential mortgage loans to real estate owned and other assets	10,762		34,697
Real estate securities retained from loan securitizations	167,246		145,920
Residential mortgage loans subject to repurchase	1,897,142	[1]	1,826,620
Purchase of Agency RMBS, settled after quarter-end	$ 498,933		$ 0

[1] See Note 5 for details.