OTHER FINANCIAL STATEMENT INFORMATION - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jul. 01, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 164,817	$ 162,137
Less: accumulated depreciation and amortization	(123,213)	(119,416)
Total	41,604	42,721
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	80,200	78,461
Capitalized software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	37,945	38,306
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	40,347	40,658
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,904	2,820
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 3,421	$ 1,892