Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	May 02, 2021	Jan. 31, 2021
Property Plant And Equipment [Line Items]
Total property and equipment	$ 491,722	$ 475,515
Less: accumulated depreciation and amortization	(319,341)	(312,474)
Property and equipment, net	172,381	163,041
Test equipment
Property Plant And Equipment [Line Items]
Total property and equipment	243,564	238,069
Computer equipment and software
Property Plant And Equipment [Line Items]
Total property and equipment	194,991	184,518
Furniture and fixtures
Property Plant And Equipment [Line Items]
Total property and equipment	8,492	8,484
Leasehold improvements
Property Plant And Equipment [Line Items]
Total property and equipment	$ 44,675	$ 44,444

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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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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