Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Oct. 03, 2020	Sep. 28, 2019
Components of Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 451,010	$ 414,375	$ 431,548	$ 385,544
Change in fair value of derivatives	1,563	(1,136)	(2,120)	(2,083)
Amounts reclassified from other comprehensive loss	532	1,532	2,737	3,670
Tax effect	(524)	(102)	(154)	(406)
Other comprehensive income, net of tax	1,571	294	463	1,181
Ending Balance	471,354	425,632	471,354	425,632
Accumulated Other Comprehensive Income (Loss) [Member]
Components of Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(1,346)	(2,178)	(238)	(3,065)
Other comprehensive income, net of tax	1,571	294	463	1,181
Ending Balance	225	(1,884)	225	(1,884)
Aluminum Forward Contracts [Member]
Components of Accumulated Other Comprehensive Income (Loss) [Line Items]
Change in fair value of derivatives	1,452	(1,136)	(2,152)	(2,083)
Amounts reclassified from other comprehensive loss	680	1,532	2,798	3,670
Tax effect	(533)	(102)	(161)	(406)
Other comprehensive income, net of tax	1,599	294	485	1,181
Aluminum Forward Contracts [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Components of Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(1,352)	(2,178)	(238)	(3,065)
Ending Balance	247	$ (1,884)	247	$ (1,884)
MTP Contracts [Member]
Components of Accumulated Other Comprehensive Income (Loss) [Line Items]
Change in fair value of derivatives	111		32
Amounts reclassified from other comprehensive loss	(148)		(61)
Tax effect	9		7
Other comprehensive income, net of tax	(28)		(22)
MTP Contracts [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Components of Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	6
Ending Balance	$ (22)		$ (22)