Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Restricted cash	$ 70,707	$ 47,717
Loans held for sale, at fair value	$ 395,421	$ 286,802
Common stock, par value (in usd per share)	$ 0	$ 0
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	220,216,672	220,161,120
Common stock, shares outstanding	220,216,672	220,161,120