CONDENSED 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	$ 994,342	$ 1,328,574
Adjustments to reconcile net income to net cash provided by operating activities:
Reserve for representations and warranties	37,877	34,262
Capitalization of mortgage servicing rights	(1,740,625)	(1,843,861)
Change in fair value of mortgage servicing rights	(434,912)	448,825
Depreciation & amortization	36,455	26,761
Stock-based compensation expense	5,490	4,453
Retention of investment securities	0	(42,164)
Decrease in fair value of investment securities	28,330	149
Decrease in fair value of warrants liability	(7,737)	(30,944)
(Increase) decrease in:
Mortgage loans at fair value	12,132,107	(3,820,127)
Derivative assets	(317,991)	(82,735)
Other assets	(124,946)	(64,272)
Increase (decrease) in:
Derivative liabilities	178,589	(4,803)
Other liabilities	25,843	292,023
Net cash provided by (used in) operating activities	10,812,822	(3,753,859)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of premises and equipment	(20,741)	(52,271)
Net proceeds from sale of mortgage servicing rights	1,171,430	241,634
Proceeds from principal payments on investment securities	8,569	206
Margin calls on borrowings against investment securities	(14,682)	0
Net cash provided by investing activities	1,144,576	189,569
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings (repayments) under warehouse lines of credit	(11,242,219)	3,546,551
Repayments of finance lease liabilities	(13,023)	(9,620)
Borrowings under equipment notes payable	0	1,078
Repayments under equipment notes payable	(763)	(25,365)
Borrowings under operating lines of credit	0	79,700
Repayments under operating lines of credit	0	(400,000)
Proceeds from issuance of senior notes	0	700,000
Discount and direct issuance costs on senior notes	0	(7,036)
Borrowings against investment securities	28,648	32,560
Repayments of borrowings against investment securities	(32,559)	0
Proceeds from business combination transaction	0	895,134
Costs incurred related to business combination transaction	0	(11,260)
Dividends paid to Class A common stockholders	(27,678)	(20,547)
Member distributions paid to SFS Corp.	(601,358)	(1,468,837)
Class A common stock repurchased	0	(20,995)
Net cash (used in) provided by financing activities	(11,888,952)	3,291,363
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	68,446	(272,927)
CASH AND CASH EQUIVALENTS, BEGINNING OF THE PERIOD	731,088	1,223,837
CASH AND CASH EQUIVALENTS, END OF THE PERIOD	799,534	950,910
SUPPLEMENTAL INFORMATION
Cash paid for interest	122,049	176,304
Cash paid for taxes	$ 0	$ 1,738