Fair Value - Schedule of Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Jul. 02, 2022	Jan. 01, 2022
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets (Liabilities)	$ (3,186)	$ 9,428
Aluminum Contracts [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets (Liabilities)	(5,173)	4,829
MTP Contracts [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets (Liabilities)	1,987	4,599
Significant Other Observable Inputs (Level 2) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets (Liabilities)	(3,186)	9,428
Significant Other Observable Inputs (Level 2) [Member] | Aluminum Contracts [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets (Liabilities)	(5,173)	4,829
Significant Other Observable Inputs (Level 2) [Member] | MTP Contracts [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets (Liabilities)	$ 1,987	$ 4,599