Commitments and Contingencies - Summary of Company's Purchases from Manufacturing Cooperatives (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2021	Sep. 27, 2020	Oct. 01, 2021	Sep. 27, 2020
Loss Contingencies [Line Items]
Total purchases from manufacturing cooperatives	$ 73,284	$ 68,202	$ 218,667	$ 214,060
Southeastern
Loss Contingencies [Line Items]
Total purchases from manufacturing cooperatives	31,417	31,196	92,990	94,835
SAC
Loss Contingencies [Line Items]
Total purchases from manufacturing cooperatives	$ 41,867	$ 37,006	$ 125,677	$ 119,225