Revenue Recognition - Summary of Disaggregated Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Mar. 26, 2022
Disaggregation Of Revenue [Line Items]
Total	$ 466,738	$ 401,579
Net sales to U.S. customers
Disaggregation Of Revenue [Line Items]
Total	430,693	373,618
Net sales to non-U.S. customers
Disaggregation Of Revenue [Line Items]
Total	36,045	27,961
Powertrain
Disaggregation Of Revenue [Line Items]
Total	171,035	152,228
Chassis
Disaggregation Of Revenue [Line Items]
Total	188,864	160,862
Motor Vehicle body
Disaggregation Of Revenue [Line Items]
Total	91,159	73,280
Hardware
Disaggregation Of Revenue [Line Items]
Total	$ 15,680	$ 15,209