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Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024
Schedule Of Unrecognized Tax Benefits Roll Forward Abstract
Unrecognized tax benefits, beginning of year	$ 18,978	$ 18,965
Changes for tax positions for prior years	13	14
Changes for tax positions for current year
Unrecognized tax benefits, end of year	$ 18,991	$ 18,979

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Amount of unrecognized tax benefits.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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