Annual report pursuant to Section 13 and 15(d)

Deferred Compensation Plan - Narrative (Detail)

v3.20.4
Deferred Compensation Plan - Narrative (Detail) - USD ($)
12 Months Ended
Dec. 26, 2020
Dec. 28, 2019
Dec. 29, 2018
Retirement Benefits [Abstract]      
Percentage of deferred salary and commissions (up to) 25.00%    
Percentage of bonuses (up to) 100.00%    
Percentage of deferred matching contribution amount 25.00%    
Matching contribution on deferred amount (up to) $ 10,000    
Vesting schedule 5 years    
Assets held in mutual funds $ 1,911,000 $ 1,911,000  
Assets held in mutual funds, current 595,000 355,000  
Distributions from the deferred compensation plan aggregated $ 527,000 $ 686,000 $ 849,000