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Net Income per Share - Additional Information (Detail) - shares
3 Months Ended
Mar. 01, 2021
Mar. 01, 2020
Mar. 01, 2019
Jan. 01, 2019
Mar. 27, 2021
Mar. 28, 2020
Earnings Per Share Note [Line Items]            
Antidilutive securities excluded from computation of earnings per share         4,027  
Common Class A            
Earnings Per Share Note [Line Items]            
Antidilutive securities excluded from computation of earnings per share         6,035 33,000
Investment Share Program            
Earnings Per Share Note [Line Items]            
Vesting period         5 years  
Investment Share Program | Minimum            
Earnings Per Share Note [Line Items]            
Requirement tenure of employee for investment share program, purchase shares at discount         1 year  
Discount from current market value         20.00%  
Investment Share Program | Maximum            
Earnings Per Share Note [Line Items]            
Requirement tenure of employee for investment share program, purchase shares at discount         2 years  
Discount from current market value         40.00%  
Restricted Stock Awards            
Earnings Per Share Note [Line Items]            
Vesting period 4 years 4 years 4 years 5 years    
Performance Based Awards | Common Class A            
Earnings Per Share Note [Line Items]            
Number of shares not included because the performance criteria was not expected to be met           10,000