v2.4.0.6
Carrying Value and Estimated Fair Value of Company's Long-Term Debt (Parenthetical) (Detail) (5.5% Senior Notes due March 2017)
3 Months Ended
Nov. 25, 2012
5.5% Senior Notes due March 2017
 
Debt Instrument [Line Items]  
Loan interest rate, fixed 5.50%
Debt instrument, principal due date 2017-03