Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities
Net income before noncontrolling interests	$ 47,444	$ 41,604
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	(79,496)	(63,675)
Change in the fair value of premiums and origination fees	(11,954)	(2,031)
Amortization and depreciation	51,580	48,144
Provision (benefit) for credit losses	(117)	482
Other operating activities, net	314,038	189,365
Net cash provided by (used in) operating activities	321,495	213,889
Cash flows from investing activities
Capital expenditures	(777)	(940)
Net cash paid to increase ownership interest in a previously held equity method investment	(1,058)
Acquisitions, net of cash received		(12,767)
Purchase of mortgage servicing rights	(43,374)
Originations of loans held for investment	(141,842)	(114,945)
Principal collected on loans held for investment	133,120	22,920
Net cash provided by (used in) investing activities	(53,931)	(105,732)
Cash flows from financing activities
Borrowings (repayments) of warehouse notes payable, net	(333,615)	(176,469)
Borrowings of interim warehouse notes payable	98,863	88,325
Repayments of interim warehouse notes payable	(97,873)	(17,190)
Repayments of note payable	(552)	(4,268)
Proceeds from issuance of common stock	3,291	5,677
Repurchase of common stock	(11,979)	(49,681)
Debt issuance costs	(1,689)	(793)
Distributions to noncontrolling interests	(5)
Tax benefit from vesting of equity awards		677
Net cash provided by (used in) financing activities	(343,559)	(153,722)
Net increase (decrease) in cash and cash equivalents	(75,995)	(45,565)
Cash and cash equivalents at beginning of period	136,988	113,354
Cash and cash equivalents at end of period	60,993	67,789
Supplemental Disclosure of Cash Flow Information:
Cash paid to third parties for interest	18,008	17,047
Cash paid for income taxes	$ 16,426	$ 16,584