Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net income before noncontrolling interests	$ 162,854	$ 130,275
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	(236,434)	(132,995)
Change in the fair value of premiums and origination fees	(24,393)	920
Amortization and depreciation	123,998	112,920
Provision (benefit) for credit losses	32,029	2,864
Originations of loans held for sale	(15,923,846)	(12,098,180)
Sales of loans to third parties	13,517,432	11,910,016
Other operating activities, net	51,492	(18,848)
Net cash provided by (used in) operating activities	(2,296,868)	(93,028)
Cash flows from investing activities
Capital expenditures	(2,050)	(4,166)
Purchase of equity-method investments	(974)
Purchase of pledged available-for-sale ("AFS") securities	(14,130)	(25,611)
Proceeds from prepayment of pledged AFS securities	15,531	18,116
Distributions from (investments in) joint ventures, net	(3,538)	(10,377)
Acquisitions, net of cash acquired	(46,784)	(7,180)
Originations of loans held for investment	(36,950)	(154,302)
Principal collected on loans held for investment upon payoff	236,519	200,315
Net cash provided by (used in) investing activities	147,624	16,795
Cash flows from financing activities
Borrowings (repayments) of warehouse notes payable, net	2,497,627	53,372
Borrowings of interim warehouse notes payable	34,028	85,678
Repayments of interim warehouse notes payable	(109,860)	(38,527)
Repayments of note payable	(2,234)	(2,250)
Proceeds from issuance of common stock	12,587	4,453
Repurchase of common stock	(42,525)	(29,850)
Purchase of noncontrolling interests	(10,400)
Cash dividends paid	(33,984)	(27,936)
Payment of contingent consideration	(1,641)	(6,450)
Debt issuance costs	(2,340)	(2,465)
Net cash provided by (used in) financing activities	2,341,258	36,025
Net increase in cash, cash equivalents, restricted cash, and restricted cash equivalents (NOTE 2)	192,014	(40,208)
Cash, cash equivalents, restricted cash, and restricted cash equivalents at beginning of period	136,566	120,348
Total of cash, cash equivalents, restricted cash, and restricted cash equivalents at end of period	328,580	80,140
Supplemental Disclosure of Cash Flow Information:
Cash paid to third parties for interest	33,116	51,085
Cash paid for income taxes	$ 21,437	$ 33,665