Commitments and Contingencies - Summary of Company's Purchases from Manufacturing Cooperatives (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Loss Contingencies [Line Items]
Total purchases from manufacturing cooperatives	$ 72,862	$ 71,772
Southeastern
Loss Contingencies [Line Items]
Total purchases from manufacturing cooperatives	31,028	34,326
SAC
Loss Contingencies [Line Items]
Total purchases from manufacturing cooperatives	$ 41,834	$ 37,446