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Stock-based Incentive Compensation Plans - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Nov. 25, 2012
Nov. 27, 2011
Nov. 28, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense $ 5.1 $ 6.6 $ 11.7
Tax benefit (expense) realized from exercise of stock options (2.6) 2.7 4.5
Total compensation cost not yet recognized $ 11.7    
Total compensation cost not yet recognized, period for recognition 2 years 10 months 21 days    
Total Shareholder Return Plan (TSRP)
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized 700,000    
Number of shares available for grant 585,895    
Contractual term, maximum 10 years    
Total Shareholder Return Plan (TSRP) | Restricted stock units (RSUs)
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 6 months    
Requisite service period 3 years    
Total Shareholder Return Plan (TSRP) | Put rights
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 6 months    
Total Shareholder Return Plan (TSRP) | Call rights
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 6 months    
2006 Equity incentive plan (EIP) | Stock appreciation rights (SARs) | Minimum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 2 years 6 months    
Maximum contractual term 6 years 6 months    
2006 Equity incentive plan (EIP) | Stock appreciation rights (SARs) | Maximum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 4 years    
Maximum contractual term 10 years