Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
ASSETS
Loans held for investment, fair value	$ 1,273,072,000	$ 0
Accumulated depreciation	732,500,000	584,200,000
STOCKHOLDER'S EQUITY
Preferred Stock, no par value (in usd per share)
Preferred Stock, liquidation preference per share (in usd per share)	$ 25,000	$ 25,000
Preferred Stock, shares authorized	7,500,000	7,500,000
Preferred Stock, shares outstanding	8,000	8,000
Common Stock, no par value (in usd per share)
Common Stock, shares authorized	800,000,000	800,000,000
Common Stock, shares outstanding	530,391,043	520,307,043
Residential mortgages [Member]
ASSETS
Residential servicing rights at fair value	$ 124,118,000	$ 141,787,000