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Number of treasury stock used to settle stock option exercises and other stock share based awards.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of noncash expense for share-based payment arrangement.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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STOCK-BASED COMPENSATION - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award
Stock compensation expense	$ 1,200	$ 1,200	$ 3,390	$ 3,416
Unrecognized compensation cost	5,900		$ 5,900
Compensation expense recognize, period			3 years
Intrinsic value of the stock options exercised			$ 24,100	$ 1,500
Intrinsic value of outstanding stock options	48,200		48,200
Intrinsic value of exercisable stock options	$ 42,900		$ 42,900
Cash dividends deemed paid on shares			3,988
Shares paid for tax withholding for share based compensation			532,860	29,058
Share-based payment			$ 73.92	$ 47.16
Treasury stock to settle stock option exercises and other share-based awards			337,884	132,656
Performance-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award
The number of shares issuable under restricted stock units awarded during the period	5,000		5,000
Earnings per share performance-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award
The number of shares issuable under restricted stock units awarded during the period	10,000		10,000
Renewable energy performance-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award
The number of shares issuable under restricted stock units awarded during the period	5,000		5,000
Time-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award
The number of shares issuable under restricted stock units awarded during the period	42,050		42,050