Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Summary of the estimated useful lives for each major depreciable classification of property and equipment (Detail)

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Summary of Significant Accounting Policies - Summary of the estimated useful lives for each major depreciable classification of property and equipment (Detail)
 6 Months Ended
Jun. 26, 2021
Manufacturing machinery and equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment, useful life 3 years
Manufacturing machinery and equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment, useful life 7 years
Office furniture and equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment, useful life 3 years
Office furniture and equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment, useful life 7 years
Vehicles | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment, useful life 3 years
Vehicles | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment, useful life 10 years
Leasehold improvements | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment, useful life 3 years
Leasehold improvements | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment, useful life 20 years