CONDENSED STATEMENT OF CHANGES IN STOCKHOLDERS'/MEMBERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Capital Contributions	Additional Paid-in-Capital	Retained Deficit/Accumulated Loss
Balance at Dec. 31, 2011	$ 285,502		$ 322,496		$ (36,994)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock		476	(476)
Issuance of common stock (in shares)		47,634,353.0
Reclassification of members' contributions			(322,020)	322,020
Proceeds from the sale of common stock	213,839	180		213,659
Proceeds from the sale of common stock (in shares)		18,000,000
Stock-based compensation	682	9		673
Stock-based compensation (in shares)		915,210
Net loss	(129,884)				(129,884)
Balance at Jun. 30, 2012	$ 370,139	$ 665		$ 536,352	$ (166,878)
Balance (in shares) at Jun. 30, 2012	66,549,563	66,549,563