CONSOLIDATED STATEMENTS OF SHAREHOLDER'S EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total USD ($)	Predecessor USD ($)	Preferred Stock Predecessor USD ($)	Common Stock	Common Stock Predecessor USD ($)	Additional Paid-In Capital USD ($)	Additional Paid-In Capital Predecessor USD ($)	Retained Earnings USD ($)	Retained Earnings Predecessor USD ($)	Accumulated Other Comprehensive Income/(Loss) USD ($)	Accumulated Other Comprehensive Income/(Loss) Predecessor USD ($)	Noncontrolling Interests USD ($)	Noncontrolling Interests Predecessor USD ($)
Balance at Dec. 31, 2009		$ 432,725	$ 46,609		$ 50,577		$ 94,892		$ 248,697		$ (7,195)		$ (855)
Balance (in shares) at Dec. 31, 2009			48,000		29,453,000
Increase (Decrease) in Stockholders' Equity
Net income (loss)		(176,349)							(176,177)				(172)
Foreign currency translation adjustment arising during period		(627)									(627)
Share-based compensation		6,201					6,201
Purchase minority interest							(745)						745
Reclass deferred director's fees to accrued expenses		(724)					(724)
Shares issued under stock option plans, including related tax benefit		(3,605)					(3,605)
Shares issued under stock option plans, including related tax benefit (in shares)					(116,000)
Balance at Nov. 15, 2010		257,621	46,609		50,577		96,019		72,520		(7,822)		(282)
Balance (in shares) at Nov. 15, 2010			48,000		29,337,000
Balance at Nov. 16, 2010	452,644					452,444						200
Balance (in shares) at Nov. 16, 2010				21,345,000
Increase (Decrease) in Stockholders' Equity
Net income (loss)	6,183							6,201				(18)
Foreign currency translation adjustment arising during period	257									257
Return on preferred shares	(753)							(753)
Payments for common share exchange	(56,875)					(56,875)
Redemption of preferred shares	(158,843)					(158,843)
Balance at Dec. 31, 2010	242,613					236,726		5,448		257		182
Balance (in shares) at Dec. 31, 2010				21,345,000
Increase (Decrease) in Stockholders' Equity
Net income (loss)	52,992							53,163				(171)
Foreign currency translation adjustment arising during period	(433)									(433)
Share-based compensation	2,383					2,383
Funds contributed by co-investors	1,400					1,400
Balance at Dec. 31, 2011	298,955					240,509		58,611		(176)		11
Balance (in shares) at Dec. 31, 2011	21,344,741			21,345,000
Increase (Decrease) in Stockholders' Equity
Net income (loss)	41,013							41,123				(110)
Foreign currency translation adjustment arising during period	206									206
Share-based compensation	3,836					3,836
Balance at Dec. 31, 2012	$ 344,010					$ 244,345		$ 99,734		$ 30		$ (99)
Balance (in shares) at Dec. 31, 2012	21,344,741			21,345,000