Accumulated Other Comprehensive Income - Component of Accumulated Other Comprehensive Income/(loss) (Details) - USD ($) $ in Thousands	Jul. 31, 2022	Jan. 31, 2022	Jul. 31, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Foreign currency translation adjustments	$ 74,194	$ 84,725	$ 91,058
Available-for-sale securities	158	172	149
Hedging contracts	1,140	194	0
Total accumulated other comprehensive income	75,724	85,295	90,486
Unrecognized Prior Service Cost
Accumulated Other Comprehensive Income Loss [Line Items]
Defined benefit pension plan	(259)	(287)	(315)
Net Actuarial Gain (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Defined benefit pension plan	$ 491	$ 491	$ (406)

Amount, after tax, of accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

+ References

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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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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount, after tax, of accumulated gain (loss) from increase (decrease) in value of excluded component of derivative hedge.

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