Supplemental Cash Flow Information Narrative (Details) (USD $)	11 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	Dec. 31, 2011 Successor	Dec. 29, 2012 Successor	Jan. 28, 2011 Predecessor	Jan. 01, 2011 Predecessor	Jan. 01, 2011 Common Class A Predecessor
Supplemental Cash Flow [Line Items]
Interest paid, capitalized	$ 1,800,000	$ 1,800,000	$ 200,000	$ 900,000
Noncash investing or financing transactions of property, plant and equipment	4,900,000	900,000	700,000
Surrender of shares to satisfy employee withholding tax obligations, shares					106,909
Surrender of shares to satisfy employee withholding tax obligations				$ 2,026,000	$ 1,600,000