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Shareholders' Equity - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021	Jun. 04, 2019	Aug. 22, 2017
Equity, Class of Treasury Stock [Line Items]
Common shares authorized for repurchase, shares				20,000,000	20,000,000
Remaining common shares authorized for repurchase, shares	19,156,390
Common stock repurchased and retired,value	$ 118,776	$ 63,555	$ 10,912
Stock Repurchased and Retired During Period, Value	$ 118,776	$ 63,555	$ 10,912
Employee Stock
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased and retired,shares	248,812	229,082
Common stock repurchased and retired,value	$ 6,760	$ 7,790
Stock Repurchased and Retired During Period, Shares	248,812	229,082
Stock Repurchased and Retired During Period, Value	$ 6,760	$ 7,790

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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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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