Commitments and Contingencies (Details)	1 Months Ended	3 Months Ended		9 Months Ended		20 Months Ended
	Nov. 30, 2025 USD ($)	Oct. 31, 2025 USD ($)	Oct. 31, 2024 USD ($)	Oct. 31, 2025 USD ($)	Oct. 31, 2024 USD ($)	Oct. 31, 2025 USD ($) complaint	Nov. 01, 2025 USD ($)	Oct. 29, 2025 motion	Jan. 31, 2025 USD ($)
Other Commitments [Line Items]
Asset impairment charges				$ 108,715,000	$ 0
Lease not yet commenced		$ 72,300,000		72,300,000		$ 72,300,000
Sublease income		0	$ 0	0	0
Cost of matching contributions		0	0	0	0
Loss contingency accrual		0		0		0			$ 0
Letters of credit outstanding		23,400,000		23,400,000		$ 23,400,000
Indemnification Agreement
Other Commitments [Line Items]
Loss contingency, loss in period		0	$ 0	0	$ 0
San Mateo Office Facility
Other Commitments [Line Items]
Operating lease, impairment loss				87,900,000
Leasehold Improvements And Furniture And Fixtures | San Mateo Office Facility
Other Commitments [Line Items]
Asset impairment charges				20,800,000
US District Court Of California V Snowflake, Inc.
Other Commitments [Line Items]
Loss contingency, number of new claims filed | complaint						5
LAUSD Claims
Other Commitments [Line Items]
Loss contingency, number of pending claims | motion								3
Third Party Cloud Infrastructure Agreements, Spending Commitments Between November 2025 And October 2030
Other Commitments [Line Items]
Purchase commitment							$ 530,000,000
Purchase commitment, maximum amount eligible to be credited toward future purchases							$ 100,000,000
Purchase obligation, credit carryforward period							1 year
Third-Party Cloud Infrastructure Agreements And Subscription Arrangements, Spending Commitments Between January 2024 And December 2028
Other Commitments [Line Items]
Purchase commitment		$ 171,300,000		$ 171,300,000		$ 171,300,000
Third-Party AI Service Agreement, Spending Commitments | Subsequent Event
Other Commitments [Line Items]
Purchase commitment	$ 200,000,000.0
Purchase commitment, contract term	3 years
Third-Party AI Service Agreement, Spending Commitments, Contract Year Ending November 2026 | Subsequent Event
Other Commitments [Line Items]
Purchase commitment	$ 50,000,000
Third-Party AI Service Agreement, Spending Commitments, Contract Year Ending November 2027 | Subsequent Event
Other Commitments [Line Items]
Purchase commitment	70,000,000
Third-Party AI Service Agreement, Spending Commitments, Contract Year Ending November 2028 | Subsequent Event
Other Commitments [Line Items]
Purchase commitment	$ 80,000,000
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		5 years 3 months 18 days
Loss contingency, range of possible loss		$ 0		$ 0		$ 0
Maximum
Other Commitments [Line Items]
Lease not yet commenced, term of contract (in years)		9 years 1 month 6 days		9 years 1 month 6 days		9 years 1 month 6 days
Loss contingency, range of possible loss		$ 25,000,000		$ 25,000,000		$ 25,000,000