Stock-based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2011

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Performance Award Activity

Performance shares activity from December 31, 2008 to February 5, 2009 was as follows:

Predecessor	Number of Shares		Weighted-Average Fair Value Per Share
Total at December 31, 2008:	244,390		$	25.65
Granted	—		—
Vested	(244,390	)	25.65
Forfeited	—		—
Performance Shares Outstanding at February 5, 2009:	—		$	—

Schedule of Restricted Stock Activity

Restricted stock activity for the year ended December 31, 2009 was as follows:

Predecessor	Number of Shares		Weighted-Average Fair Value Per Share
Restricted Stock Outstanding at December 31, 2008:	227,643		$	24.64
Granted	—		—
Vested	(227,643	)	24.64
Forfeited	—		—
Restricted Stock Outstanding at February 5, 2009:	—		$	—