Balance Sheet Components - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Jan. 31, 2023
Property Plant And Equipment [Line Items]
Accumulated depreciation of property and equipment acquired under finance lease	$ 221.0		$ 226.2
Depreciation expense	9.3	$ 14.8
Servers and Related Equipment and Construction in Progress
Property Plant And Equipment [Line Items]
Gross amount of property and equipment acquired under finance lease	$ 246.2		$ 258.3