Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net income before noncontrolling interests	$ 86,206	$ 77,740
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	(82,209)	(79,737)
Change in the fair value of premiums and origination fees	938	(3,527)
Amortization and depreciation	75,284	69,124
Provision for credit losses	3,636	323
Originations of loans held for sale	(7,913,982)	(5,946,251)
Sales of loans to third parties	7,696,034	5,645,888
Other operating activities, net	(25,111)	(17,710)
Net cash provided by (used in) operating activities	(159,204)	(254,150)
Cash flows from investing activities
Capital expenditures	(3,392)	(1,151)
Purchase of pledged available-for-sale securities	(7,562)	(38,566)
Funding of preferred equity investments		(1,100)
Distributions from (investments in) Interim Program JV	(18,518)	1,209
Acquisitions, net of cash acquired	(7,180)	(33,102)
Purchase of mortgage servicing rights		(1,814)
Originations of loans held for investment	(83,402)	(151,754)
Principal collected on loans held for investment upon payoff	150,761	87,688
Net cash provided by (used in) investing activities	30,707	(138,590)
Cash flows from financing activities
Borrowings (repayments) of warehouse notes payable, net	129,412	323,153
Borrowings of interim warehouse notes payable	54,757	50,455
Repayments of interim warehouse notes payable	(32,264)	(61,049)
Repayments of note payable	(1,500)	(552)
Proceeds from issuance of common stock	4,188	8,067
Repurchase of common stock	(25,915)	(21,457)
Cash dividends paid	(18,630)	(15,699)
Payment of contingent consideration	(6,450)	(5,150)
Debt issuance costs	(1,729)	(1,881)
Net cash provided by (used in) financing activities	101,869	275,887
Net increase (decrease) in cash, cash equivalents, restricted cash, and restricted cash equivalents (NOTE 2)	(26,628)	(116,853)
Cash, cash equivalents, restricted cash, and restricted cash equivalents at beginning of period	120,348	286,680
Total of cash, cash equivalents, restricted cash, and restricted cash equivalents at end of period	93,720	169,827
Supplemental Disclosure of Cash Flow Information:
Cash paid to third parties for interest	36,003	21,338
Cash paid for income taxes	$ 24,865	$ 31,299