Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Feb. 06, 2022	Jan. 31, 2021
Property Plant And Equipment [Line Items]
Total property and equipment	$ 537,348	$ 475,515
Less: accumulated depreciation and amortization	(342,066)	(312,474)
Property and equipment, net	195,282	163,041
Test equipment
Property Plant And Equipment [Line Items]
Total property and equipment	266,672	238,069
Computer equipment and software
Property Plant And Equipment [Line Items]
Total property and equipment	206,053	183,763
Furniture and fixtures
Property Plant And Equipment [Line Items]
Total property and equipment	8,652	8,484
Leasehold improvements
Property Plant And Equipment [Line Items]
Total property and equipment	47,443	44,444
Capitalized software development costs
Property Plant And Equipment [Line Items]
Total property and equipment	$ 8,528	$ 755

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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