Number of shares authorized to be purchased under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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Number of shares remaining authorized to be purchased under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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Number of shares that have been repurchased and retired during the period.

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Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Shareholders' Equity - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023	Jun. 04, 2019
Equity, Class of Treasury Stock [Line Items]
Common shares authorized for repurchase, shares					20,000,000
Remaining common shares authorized for repurchase, shares	17,956,390		17,956,390
Stock Repurchased and Retired During Period, Value	$ 53,034	$ 334	$ 67,479	$ 8,184
Employee Stock
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Shares			355,439	303,579
Stock Repurchased and Retired During Period, Value			$ 14,977	$ 8,184