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Shareholders' Equity - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024	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	14,682,130		14,682,130
Stock Repurchased and Retired During Period, Value	$ 844	$ 53,034	$ 174,213	$ 67,479
Employee Stock
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Shares			392,163	355,439
Stock Repurchased and Retired During Period, Value			$ 21,144	$ 14,977

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

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+ References

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- Definition

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.

+ References

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- Definition

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

+ References

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- Definition

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).

+ References

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