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Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024	Jan. 31, 2025
Lessee, Lease, Description [Line Items]
Impairment charge	$ 30,700	$ 0	$ 30,700	$ 0
Discounted at a rate (in percent)	9.60%		9.60%
Sublease term (in years)	4 years		4 years		5 years
Sublease income	$ 1,000	$ 400	$ 2,200	$ 1,300
Lessee, operating lease, lease not yet commenced, term (less than) (in years)	7 years		7 years
Total sublease payments to be received	$ 17,824		$ 17,824
Operating Lease, Lease Not yet Commenced
Lessee, Lease, Description [Line Items]
Operating lease not yet commenced	$ 2,200		$ 2,200

X

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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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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- Definition

Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of lease payments to be received by lessor for operating lease.

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- Definition

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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- Definition

Amount of sublease income excluding finance and operating lease expense.

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- Definition

Amount of unrecorded obligation to transfer funds in future for fixed or minimum amount or quantity of product and service at fixed or minimum price. Includes, but is not limited to, lease not yet commenced and take-or-pay and throughput contracts.

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