Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Condensed Consolidated Balance Sheets
Loans held-for-investment, participation liability	$ 95,000	$ 95,000
Loans held-for-sale at fair value	279,121	0
Investment securities, fair value	529,423	884,254
Intangible assets - servicing rights at fair value	$ 158,023	$ 0
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	100,000,000	100,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	195,887,275	136,125,356
Common stock, shares outstanding	195,261,425	135,499,506
Treasury stock, shares	625,850	625,850