Restructuring - Schedule of Restructuring (Details) - March 2026 Reorganization - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 8,359	$ 0
Severance and employment-related termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	7,319
Facility and other contract terminations
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,040
Cost of revenue
Restructuring Cost and Reserve [Line Items]
Restructuring charges	730
Cost of revenue \| Severance and employment-related termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	730
Cost of revenue \| Facility and other contract terminations
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring charges	4,122
Research and development \| Severance and employment-related termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	4,122
Research and development \| Facility and other contract terminations
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Sales and marketing
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,681
Sales and marketing \| Severance and employment-related termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,681
Sales and marketing \| Facility and other contract terminations
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
General and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,826
General and administrative \| Severance and employment-related termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	786
General and administrative \| Facility and other contract terminations
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,040

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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- Definition

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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