Long-Term Debt and Credit Agreements - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Jul. 28, 2012	Mar. 07, 2011
ABL Facility
Debt Instrument [Line Items]
Outstanding stand-by letters of credit	$ 9.2
Letters of credit, remaining borrowing capacity	240.8
Line of credit facility borrowing capacity		250
Documentary Letters of Credit
Debt Instrument [Line Items]
Outstanding stand-by letters of credit	19.4
Letters of credit, remaining borrowing capacity	15.6
Line of credit facility borrowing capacity	$ 35