Other Charges - Restructuring Provision (Details) $ in Thousands	6 Months Ended
Jul. 31, 2025 USD ($)
Fiscal 2025 Restructuring Plan
Balance	$ 162
Accruals and adjustments	80
Cash draw downs	(242)
Fiscal 2026 Restructuring Plan
Accruals and adjustments	4,068
Cash draw downs	(3,533)
Balance	535
Workforce Reduction \| Fiscal 2025 Restructuring Plan
Balance	162
Accruals and adjustments	80
Cash draw downs	(242)
Workforce Reduction \| Fiscal 2026 Restructuring Plan
Accruals and adjustments	3,846
Cash draw downs	(3,311)
Balance	535
Office Closures \| Fiscal 2026 Restructuring Plan
Accruals and adjustments	164
Cash draw downs	(164)
Other \| Fiscal 2026 Restructuring Plan
Accruals and adjustments	58
Cash draw downs	$ (58)

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482017/420-10-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 17
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-17

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4.b.2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482017/420-10-50-1

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- Definition

Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

+ References

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