Revenue by Geography - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025
Disaggregation of Revenue [Line Items]
Total revenue	$ 427,260	$ 309,860	$ 814,328	$ 588,341
United States
Disaggregation of Revenue [Line Items]
Total revenue	$ 287,500	$ 216,600	$ 555,700	$ 411,900
United States \| Revenue \| Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	67.00%	70.00%	68.00%	70.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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