Balance Sheet Components - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Jan. 31, 2020
Property Plant And Equipment [Line Items]
Total property and equipment, gross	$ 481,558	$ 447,996
Less: accumulated depreciation	(307,937)	(257,020)
Total property and equipment, net	173,621	190,976
Servers and related equipment
Property Plant And Equipment [Line Items]
Total property and equipment, gross	348,945	312,369
Leasehold improvements
Property Plant And Equipment [Line Items]
Total property and equipment, gross	80,536	79,979
Computer hardware
Property Plant And Equipment [Line Items]
Total property and equipment, gross	26,052	23,086
Furniture and fixtures
Property Plant And Equipment [Line Items]
Total property and equipment, gross	14,420	14,192
Construction in progress
Property Plant And Equipment [Line Items]
Total property and equipment, gross	$ 11,605	$ 18,370

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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