Leases - Summary of Balances Related to Lease Portfolio within Condensed Consolidated Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Lessee Disclosure [Line Items]
Total lease cost	$ 10,735	$ 9,752
Cost of sales
Lessee Disclosure [Line Items]
Operating lease costs	1,385	1,341
Short-term and variable leases	2,600	2,262
Depreciation expense from financing leases	354	353
Total lease cost	4,339	3,956
SD&A expenses
Lessee Disclosure [Line Items]
Operating lease costs	4,669	2,896
Short-term and variable leases	890	1,059
Depreciation expense from financing leases	571	1,139
Total lease cost	6,130	5,094
Interest expense, net
Lessee Disclosure [Line Items]
Interest expense on financing lease obligations	266	702
Total lease cost	$ 266	$ 702