Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Narrative (Detail)

v3.19.3
Commitments and Contingencies - Narrative (Detail) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 29, 2018
Jun. 30, 2018
Dec. 30, 2017
Loss Contingencies [Line Items]          
Losses up to per occurrence related to product liability, automotive, workers' compensation and general liability $ 250,000        
Letters of credit, outstanding 11,736,000        
Maximum          
Loss Contingencies [Line Items]          
Occurrences in excess for purchased catastrophic coverage 60,000,000        
Minimum          
Loss Contingencies [Line Items]          
Occurrences in excess for purchased catastrophic coverage 250,000        
Insurance Claims          
Loss Contingencies [Line Items]          
Liability recorded for such risk insurance reserves 1,968,000        
Group Health Insurance Claims          
Loss Contingencies [Line Items]          
Losses up to per occurrence related to product liability, automotive, workers' compensation and general liability 250,000        
Liability recorded for such risk insurance reserves $ 2,162,000        
Anti-dumping duties          
Loss Contingencies [Line Items]          
Loss contingency accrual       $ 2,146,000 $ 6,274,000
Loss contingency, (income) in period   $ 0 $ (4,128,000)