Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net income before noncontrolling interests	$ 124,637	$ 114,110
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	(104,679)	(119,784)
Change in the fair value of premiums and origination fees	7,852	9,047
Amortization and depreciation	117,255	95,381
Provision (benefit) for credit losses	(14,338)	(15,646)
Gain from revaluation of previously held equity-method investment	(39,641)
Originations of loans held for sale	(8,805,659)	(7,293,128)
Proceeds from transfers of loans held for sale	9,637,859	8,024,903
Other operating activities, net	(69,417)	(55,541)
Net cash provided by (used in) operating activities	853,869	759,342
Cash flows from investing activities
Capital expenditures	(11,902)	(3,800)
Purchase of equity-method investments	(12,029)	(3,248)
Purchase of pledged available-for-sale ("AFS") securities	(46,395)	(2,000)
Proceeds from prepayment and sale of pledged AFS securities	6,101	22,092
Investments in joint ventures	(5,040)	(38,805)
Distributions from joint ventures	11,359	22,113
Acquisitions, net of cash acquired	(78,465)	(10,507)
Originations of loans held for investment	(49,057)	(116,087)
Principal collected on loans held for investment upon payoff	71,500	205,653
Net cash provided by (used in) investing activities	(113,928)	75,411
Cash flows from financing activities
Borrowings (repayments) of warehouse notes payable, net	(826,454)	(744,281)
Borrowings of interim warehouse notes payable	36,459	84,766
Repayments of interim warehouse notes payable	(26,000)	(34,174)
Repayments of notes payable	(21,244)	(1,490)
Repayments of secured borrowings		(73,312)
Proceeds from issuance of common stock	263	13,137
Repurchase of common stock	(39,380)	(14,190)
Cash dividends paid	(40,143)	(32,122)
Payment of contingent consideration	(17,612)
Distributions to noncontrolling interests	(1,675)
Debt issuance costs	(1,573)	(1,333)
Net cash provided by (used in) financing activities	(937,359)	(802,999)
Net increase (decrease) in cash, cash equivalents, restricted cash, and restricted cash equivalents (NOTE 2)	(197,418)	31,754
Cash, cash equivalents, restricted cash, and restricted cash equivalents at beginning of period	393,180	358,002
Total of cash, cash equivalents, restricted cash, and restricted cash equivalents at end of period	195,762	389,756
Supplemental Disclosure of Cash Flow Information:
Cash paid to third parties for interest	28,023	16,708
Cash paid for income taxes	$ 45,300	$ 26,723