Derivatives - Summary of Fair Values of Hedges and MTP Contracts (Detail) - USD ($) $ in Thousands	Apr. 04, 2020	Dec. 28, 2019
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Assets		$ 193
Total derivative instruments Liabilities	$ (4,918)	(510)
Aluminum Forward Contracts [Member] | Other Current Assets [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Assets		193
Aluminum Forward Contracts [Member] | Accrued Liabilities [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Liabilities	(3,990)	$ (510)
Aluminum Forward Contracts [Member] | Other Liabilities [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Liabilities	(875)
MTP Contracts [Member] | Accrued Liabilities [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Liabilities	(20)
MTP Contracts [Member] | Other Liabilities [Member]
Derivative Instruments And Hedging Activities [Line Items]
Total derivative instruments Liabilities	$ (33)