v2.4.0.6
Expected Amortization for Each of Next Five Fiscal Years (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jul. 28, 2012
Expected Amortization Expense [Line Items]  
Fiscal 2013 $ 2.5
Fiscal 2014 2.5
Fiscal 2015 2.4
Fiscal 2016 0.2
Fiscal 2017 0.1
Total $ 7.7