Consolidated Statements of Operations and Comprehensive Income (Loss) (Parenthetical) (USD $) In Thousands, unless otherwise specified	11 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	Dec. 31, 2010 Successor Company	Dec. 31, 2011 Successor Company	Jan. 31, 2010 Predecessor Company	Dec. 31, 2009 Predecessor Company
Comprehensive Income (Loss):
Amortization of gain on interest rate swaps, net of tax			$ 0	$ 0
Benefit plans adjustment, net of tax	$ (3,504)	$ 0	$ 0	$ 0