Interest Expense (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		5 Months Ended	6 Months Ended	5 Months Ended	6 Months Ended	5 Months Ended	6 Months Ended	5 Months Ended	6 Months Ended	5 Months Ended	6 Months Ended	1 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011 Amortization of deferred financing costs	Jul. 28, 2012 Amortization of deferred financing costs	Jul. 30, 2011 Other, net of interest income	Jul. 28, 2012 Other, net of interest income	Jul. 30, 2011 Term Loan	Jul. 28, 2012 Term Loan	Jul. 30, 2011 Notes	Jul. 28, 2012 Notes	Mar. 07, 2011 Predecessor	Mar. 07, 2011 Predecessor Amortization of deferred financing costs	Mar. 07, 2011 Predecessor Other, net of interest income
Debt Instrument [Line Items]
Interest expense, net	$ 25,359	$ 25,713	$ 41,239	$ 50,771	$ 4,001	$ 4,801	$ 884	$ 951	$ 23,116	$ 28,581	$ 13,238	$ 16,438	$ 1,166	$ 970	$ 196