Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	May 03, 2020	Feb. 02, 2020
Property Plant And Equipment [Line Items]
Total property and equipment	$ 418,028	$ 395,622
Less: accumulated depreciation and amortization	(281,820)	(272,882)
Property and equipment, net	136,208	122,740
Test equipment
Property Plant And Equipment [Line Items]
Total property and equipment	216,184	205,555
Computer equipment and software
Property Plant And Equipment [Line Items]
Total property and equipment	150,012	141,387
Furniture and fixtures
Property Plant And Equipment [Line Items]
Total property and equipment	8,800	8,324
Leasehold improvements
Property Plant And Equipment [Line Items]
Total property and equipment	$ 43,032	$ 40,356

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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