Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net income before noncontrolling interests	$ 15,333	$ 21,313
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	(23,917)	(31,317)
Change in the fair value of premiums and origination fees	(63)	(7,381)
Amortization and depreciation	25,155	24,674
Provision for credit losses	(409)	84
Other operating activities, net	1,940,132	(228,032)
Net cash provided by (used in) operating activities	1,956,231	(220,659)
Cash flows from investing activities
Capital expenditures	(484)	(448)
Net cash paid to increase ownership interest in a previously held equity method investment	(1,058)
Originations of loans held for investment		(8,420)
Principal collected on loans held for investment	41,548
Net cash provided by (used in) investing activities	40,006	(8,868)
Cash flows from financing activities
(Repayments) borrowings of warehouse notes payable, net	(1,999,202)	221,525
Borrowings of interim warehouse notes payable		6,315
Repayments of interim warehouse notes payable	(30,469)
Repayments of note payable	(276)	(438)
Proceeds from issuance of common stock	3,291	2,819
Repurchase of common stock	(8,345)	(47,804)
Debt issuance costs		(662)
Tax shortfall from vesting of equity awards		(66)
Net cash provided by (used in) financing activities	(2,035,001)	181,689
Net increase (decrease) in cash and cash equivalents	(38,764)	(47,838)
Cash and cash equivalents at beginning of period	136,988	113,354
Cash and cash equivalents at end of period	98,224	65,516
Supplemental Disclosure of Cash Flow Information:
Cash paid to third parties for interest	11,880	7,793
Cash paid for taxes	$ 11,315	$ 9,114