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Revenues - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024	Jan. 31, 2025
Disaggregation of Revenue [Line Items]
Deferred revenue	$ 546.0		$ 546.0		$ 608.6
Deferred revenue, revenue recognized out of beginning balance	241.6	$ 225.4	526.4	$ 512.1
Remaining performance obligation, revenue expected to be recognized	$ 1,500.0		$ 1,500.0
Geographic Concentration Risk | Revenue | United States
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage	62.00%	64.00%	63.00%	65.00%
Geographic Concentration Risk | Revenue | Japan
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage	26.00%	24.00%	25.00%	23.00%

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