Commitments and Contingencies (Details)	3 Months Ended		14 Months Ended
	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($)	Apr. 30, 2025 USD ($) complaint	Jan. 31, 2025 USD ($)
Other Commitments [Line Items]
Asset impairment charges	$ 106,488,000	$ 0
Lease not yet commenced	48,200,000		$ 48,200,000
Sublease income	1,400,000	2,400,000
Cost of matching contributions	0	$ 0
Loss contingency accrual	0		0	$ 0
Letters of credit outstanding	20,800,000		$ 20,800,000
San Mateo Office Facility
Other Commitments [Line Items]
Operating lease, impairment loss	85,900,000
Leasehold Improvements And Furniture And Fixtures | San Mateo Office Facility
Other Commitments [Line Items]
Asset impairment charges	$ 20,600,000
US District Court Of California V Snowflake, Inc.
Other Commitments [Line Items]
Loss contingency, number of new claims filed | complaint			4
Minimum
Other Commitments [Line Items]
Lease not yet commenced, term of contract (in years)	5 years 3 months 18 days		5 years 3 months 18 days
Loss contingency, range of possible loss	$ 0		$ 0
Maximum
Other Commitments [Line Items]
Lease not yet commenced, term of contract (in years)	12 years 9 months 18 days		12 years 9 months 18 days
Loss contingency, range of possible loss	$ 25,000,000		$ 25,000,000