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Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Parenthetical) (Detail) - USD ($)
$ in Thousands
12 Months Ended
Aug. 29, 2015
Aug. 30, 2014
Aug. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Pension liability adjustments, taxes $ 4,638 $ 8,287 $ 27,972
Unrealized (losses) gains on marketable securities, taxes 55 54 202
Net derivative activities, taxes 68 87 $ 440
Pension Liability [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Pension liability adjustments, taxes 3,571 2,683  
Net Unrealized Gain on Securities [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Unrealized (losses) gains on marketable securities, taxes 12 30  
Derivatives [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Net derivative activities, taxes $ 68 $ 87