Certain Relationships and Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended		3 Months Ended	12 Months Ended	11 Months Ended	12 Months Ended	1 Months Ended
	Dec. 29, 2012 Person	Jan. 28, 2011	Mar. 31, 2012 Selling, general and administrative expenses	Dec. 31, 2011 Selling, general and administrative expenses	Dec. 31, 2011 Management Services Agreement Special Charges Net	Jan. 01, 2011 Predecessor Special Charges Net	Jan. 28, 2011 Successor Special Charges Net
Related Party Transaction [Line Items]
Number of related party members in board of directors	3
Number of outside members in board of directors	2
Number of CEOs in board of directors	1
Advisory and management services fees						$ 2.0	$ 4.5
Non refundable advisory fees receivable each year if it is more than specified percentage of EBITDA	3.0
Percentage of non refundable advisory fees receivable each year if it is more than specified amount	2.00%
Advisory fee			3.0	3.0
Transaction fees of financial and structural analysis	8.0
Advisory fees recognized					7.9
Capitalization of deferred financing cost		0.8
Reimbursable expenses	$ 0.4