Revenue - Revenue by Region (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 30, 2026	Apr. 30, 2025
Disaggregation of Revenue [Line Items]
Revenue	$ 220,231	$ 157,461
Revenue Benchmark \| Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of Revenue	100.00%	100.00%
United States
Disaggregation of Revenue [Line Items]
Revenue	$ 144,706	$ 95,804
United States \| Revenue Benchmark \| Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of Revenue	66.00%	61.00%
United Kingdom
Disaggregation of Revenue [Line Items]
Revenue	$ 37,667	$ 34,641
United Kingdom \| Revenue Benchmark \| Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of Revenue	17.00%	22.00%
Rest of World
Disaggregation of Revenue [Line Items]
Revenue	$ 37,858	$ 27,016
Rest of World \| Revenue Benchmark \| Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of Revenue	17.00%	17.00%

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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