Property and Equipment - Components of Property and Equipment (Detail) - USD ($) $ in Thousands	Jan. 01, 2022	Jan. 02, 2021
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 430,294	$ 406,647
Accumulated depreciation	(157,501)	(134,136)
Property and equipment, net	272,793	272,511
Building and building improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	142,132	122,310
Machinery, equipment and tooling
Property, Plant and Equipment [Line Items]
Total property and equipment	103,451	90,843
Land
Property, Plant and Equipment [Line Items]
Total property and equipment	57,027	57,151
Transportation, vehicles and other
Property, Plant and Equipment [Line Items]
Total property and equipment	33,082	33,175
Computer equipment and software
Property, Plant and Equipment [Line Items]
Total property and equipment	32,450	24,693
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	21,894	19,295
Furniture and office equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	14,200	13,567
Demonstration units
Property, Plant and Equipment [Line Items]
Total property and equipment	949	1,024
Construction-in-progress (CIP)
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 25,109	$ 44,589