Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities
Net income before noncontrolling interests	$ 74,135	$ 171,296
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Gains attributable to the fair value of future servicing rights, net of guaranty obligation	(107,446)	(159,970)
Change in the fair value of premiums and origination fees	6,634	8,586
Amortization and depreciation	170,737	177,101
Provision (benefit) for credit losses	(11,088)	(13,120)
Gain from revaluation of previously held equity-method investment		(39,641)
Originations of loans held for sale	(8,402,185)	(13,877,961)
Proceeds from transfers of loans held for sale	8,023,294	13,283,455
Other operating activities, net	(86,493)	(16,512)
Net cash provided by (used in) operating activities	(332,412)	(466,766)
Cash flows from investing activities
Capital expenditures	(13,880)	(19,302)
Purchases of equity-method investments	(15,062)	(25,098)
Purchases of pledged available-for-sale ("AFS") securities		(51,302)
Proceeds from prepayment and sale of pledged AFS securities	9,274	9,261
Investments in joint ventures		(5,040)
Distributions from joint ventures	5,436	11,926
Acquisitions, net of cash acquired		(114,163)
Originations of loans held for investment		(50,772)
Principal collected on loans held for investment	160,801	73,500
Net cash provided by (used in) investing activities	146,569	(170,990)
Cash flows from financing activities
Borrowings (repayments) of warehouse notes payable, net	387,109	593,685
Borrowings of interim warehouse notes payable		36,459
Repayments of interim warehouse notes payable	(119,835)	(26,000)
Repayments of notes payable	(120,046)	(29,487)
Borrowings of notes payable	196,000
Proceeds from issuance of common stock	2,186	263
Repurchase of common stock	(18,928)	(40,675)
Cash dividends paid	(63,540)	(60,025)
Payment of contingent consideration	(26,090)	(19,720)
Distributions to noncontrolling interest holders	(3,328)	(2,035)
Debt issuance costs	(5,321)	(2,831)
Net cash provided by (used in) financing activities	228,207	449,634
Net increase (decrease) in cash, cash equivalents, restricted cash, and restricted cash equivalents (NOTE 2)	42,364	(188,122)
Cash, cash equivalents, restricted cash, and restricted cash equivalents at beginning of period	258,283	393,180
Total of cash, cash equivalents, restricted cash, and restricted cash equivalents at end of period	300,647	205,058
Supplemental Disclosure of Cash Flow Information:
Cash paid to third parties for interest	86,663	48,590
Cash paid for income taxes	$ 26,656	$ 56,099