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STOCK-BASED COMPENSATION - Summary of Activity under Company's Stock Option Plans (Details) - $ / shares shares in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2024 | Jan. 31, 2024
STOCK-BASED COMPENSATION |  |
Shares, Outstanding, Beginning balance | 1,365 |
Shares, Granted | 6 |
Shares, Exercised | (249) |
Shares, Forfeited | (4) |
Shares, Outstanding, Ending balance | 1,118 | 1,365
Shares, Exercisable | 1,047 |
Shares, Vested or expected to vest | 1,118 |
Weighted Average Exercise Price Per Share, Outstanding, Beginning balance | $ 44.95 |
Weighted Average Exercise Price Per Share, Granted | 61.22 |
Weighted Average Exercise Price Per Share, Exercised | 41.58 |
Weighted Average Exercise Price Per Share, Forfeited | 60.07 |
Weighted Average Exercise Price Per Share, Outstanding, Ending balance | 45.73 | $ 44.95
Weighted Average Exercise Price Per Share, Exercisable | 46.13 |
Weighted Average Exercise Price Per Share, Vested or expected to vest | $ 45.73 |
Weighted Average Remaining Contractual Term (Years), Outstanding | 4 years 5 months 19 days | 4 years 8 months 1 day
Weighted Average Remaining Contractual Term (Years), Exercisable | 4 years 2 months 8 days |
Weighted Average Remaining Contractual Term (Years), Vested or expected to vest | 4 years 5 months 19 days |
Weighted Average Grant Date Fair Value Per Share, Outstanding | $ 10.63 | $ 10.43
Weighted Average Grant Date Fair Value Per Share, Exercisable | 10.81 |
Weighted Average Grant Date Fair Value Per Share, Vested or expected to vest | $ 10.63 |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(03) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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