Organization and Business (Details 3) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended
	Oct. 02, 2012	Dec. 31, 2012
Segment information
Number of reportable segments		1
Eagle Property Acquisition
Acquisition information
Purchase price, cash	$ 325
Eagle Property Acquisition | 10.75% senior unsecured notes
Acquisition information
Aggregate principal amount borrowed	$ 600
Interest rate (as a percent)	10.75%
Eagle Property Acquisition | Series A Preferred Stock
Acquisition information
Purchase price, preferred shares	325,000	325,000
Liquidation value (in dollars per share)	$ 1,000	$ 1,000