Leases - Summary of Balances Related to Lease Portfolio within Condensed Consolidated Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019		Jul. 01, 2018	Jun. 30, 2019		Jul. 01, 2018
Lessee Disclosure [Line Items]
Total lease cost	$ 9,670			$ 19,422
Cost of Sales [Member]
Lessee Disclosure [Line Items]
Operating leases costs	1,342			2,683
Short-term and variable leases	2,317			4,579
Depreciation expense from financing leases	354	[1]	$ 300	707	[1]	$ 700
Total lease cost	4,013			7,969
Selling, Delivery and Administrative Expenses [Member]
Lessee Disclosure [Line Items]
Operating leases costs	3,026			5,922
Short-term and variable leases	779			1,838
Depreciation expense from financing leases	1,137	[1]	1,200	2,276	[1]	2,300
Total lease cost	4,942			10,036
Interest Expense, Net [Member]
Lessee Disclosure [Line Items]
Interest payments on financing lease obligations	715	[2]	$ 900	1,417	[2]	$ 1,800
Total lease cost	$ 715			$ 1,417

[1] During the second quarter of 2018, the Company had depreciation expense from capital leases of $0.3 million and $1.2 million in cost of sales and SD&A expenses, respectively. During the first half of 2018, the Company had depreciation expense from capital leases of $0.7 million and $2.3 million in cost of sales and SD&A expenses, respectively.

[2] The Company had interest payments on capital lease obligations of $0.9 million during the second quarter of 2018 and $1.8 million during the first half of 2018.