CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 180,531	$ (138,613)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Reserve for representations and warranties	10,463	7,527
Capitalization of mortgage servicing rights	(535,951)	(525,396)
Change in fair value of mortgage servicing rights	15,563	337,287
Depreciation & amortization	12,323	12,653
Stock-based compensation expense	5,876	2,482
Decrease (increase) in fair value of investment securities	269	(2,600)
Increase (decrease) in fair value of warrants liability	(686)	2,098
Decrease (increase) in:
Mortgage loans at fair value	(1,888,251)	2,334,701
Derivative assets	(1,031)	21,733
Other assets	35,719	(27,818)
Increase (decrease) in:
Derivative liabilities	(13,863)	12,994
Other liabilities	(23,702)	(44,126)
Net cash (used in) provided by operating activities	(2,202,740)	1,992,922
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of premises and equipment	(6,973)	(7,952)
Net proceeds from sale of mortgage servicing rights	1,293,861	650,707
Proceeds from principal payments on investment securities	1,760	1,614
Margin calls on borrowings against investment securities	(1,146)	0
Net cash provided by investing activities	1,287,502	644,369
CASH FLOWS FROM FINANCING ACTIVITIES
Net repayments under warehouse lines of credit	1,779,826	(2,184,157)
Repayments of finance lease liabilities	(2,142)	(6,692)
Repayments under equipment notes payable	0	(505)
Borrowings under secured lines of credit	100,000	500,000
Repayments under secured lines of credit	(650,000)	(750,000)
Borrowings against investment securities	94,064	0
Repayments of borrowings against investment securities	(93,814)	0
Dividends paid to Class A common stockholders	(9,365)	(9,258)
Member distributions paid to SFS Corp.	(194,261)	(150,207)
Other financing activities	(899)	(1,307)
Net cash provided by (used in) financing activities	1,023,409	(2,602,126)
INCREASE IN CASH AND CASH EQUIVALENTS	108,171	35,165
CASH AND CASH EQUIVALENTS, BEGINNING OF THE PERIOD	497,468	704,898
CASH AND CASH EQUIVALENTS, END OF THE PERIOD	605,639	740,063
SUPPLEMENTAL INFORMATION
Cash paid for interest	68,839	63,322
Cash paid (received) for taxes	$ 363	$ (124)