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Accumulated Other Comprehensive Income - Component of Accumulated Other Comprehensive Income (Details) - USD ($)	Jul. 31, 2025	Jan. 31, 2025	Jul. 31, 2024
Accumulated Other Comprehensive Income Loss [Line Items]
Foreign currency translation adjustments	$ 101,840,000	$ 81,519,000	$ 89,291,000
Available-for-sale securities	186,000	215,000	189,000
Cash flow hedges	(800,000)	0	15,000
Unrecognized prior service cost related to defined benefit pension plan	(96,000)	(122,000)	(147,000)
Net actuarial loss related to defined benefit pension plan	(1,631,000)	(1,631,000)	(1,546,000)
Total accumulated other comprehensive income	$ 99,499,000	$ 79,981,000	$ 87,802,000

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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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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.

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