Property, Plant and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 26, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 364,713	$ 339,205
Less: accumulated depreciation and amortization	(233,779)	(214,787)
Property, plant and equipment, net	130,934	124,418
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	13,605	12,143
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	35,106	35,801
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	9,271	10,148
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	211,671	196,270
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	71,306	68,748
Furniture and office equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,692	5,236
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 18,062	$ 10,859
Minimum | Buildings
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years
Minimum | Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives	2 years
Minimum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Minimum | Computer hardware and software
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Minimum | Furniture and office equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Maximum | Buildings
Property, Plant and Equipment [Line Items]
Estimated useful lives	39 years
Maximum | Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years
Maximum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	8 years
Maximum | Computer hardware and software
Property, Plant and Equipment [Line Items]
Estimated useful lives	13 years
Maximum | Furniture and office equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years