Income Taxes - Schedule of Interim Income Tax Provision (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025
Income Tax Disclosure [Abstract]
Income tax provision	$ 22,221	$ 18,194	$ 45,216	$ 35,232
Effective income tax rate	25.30%	23.30%	25.10%	23.60%

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details