Derivatives - Summary of Fair Value of Hedges (Detail) - USD ($) $ in Thousands	Jan. 02, 2021	Dec. 28, 2019
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Assets	$ 3,692	$ 193
Total derivative instruments Liabilities	(81)	(510)
Aluminum Forward Contracts [Member] | Other Current Assets [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Assets	3,243	193
Aluminum Forward Contracts [Member] | Accrued Liabilities [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Liabilities	(28)	$ (510)
Aluminum Forward Contracts [Member] | Other Liabilities [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Liabilities	(25)
MTP Contracts [Member] | Other Current Assets [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Assets	423
MTP Contracts [Member] | Other Assets [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Assets	26
MTP Contracts [Member] | Accrued Liabilities [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Liabilities	(24)
MTP Contracts [Member] | Other Liabilities [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Liabilities	$ (4)