Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018		Dec. 31, 2017	Mar. 31, 2017
Statement of Cash Flows [Abstract]
Proceeds from sale of mortgage loans held for sale from prior years	$ (500)
Proceeds from sale of real estate held for investment related to sales from prior years	(1,400)
Cash and cash equivalents	68,373	[1]	$ 76,674	$ 62,568
Restricted cash	44,786		106,009	54,440
Total cash, cash equivalents and restricted cash shown in the consolidated statement of cash flows	$ 113,159		$ 182,683	$ 117,008

[1] Includes amounts relating to consolidated variable interest entities. See Note 3.