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COMMITMENTS - Employee Benefit Plans (Details) - USD ($) $ in Millions | 12 Months Ended
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Jan. 31, 2025 | Jan. 31, 2024 | Jan. 31, 2023
Employee Benefit Plans |  |  |
Company's expense for defined contribution savings plans | $ 3.4 | $ 2.9 | $ 2.7
Minimum |  |  |
Employee Benefit Plans |  |  |
Deferred period | 4 years |  |
Maximum |  |  |
Employee Benefit Plans |  |  |
Deferred period | 7 years |  |

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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 70 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480794/715-70-50-1 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 70 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480794/715-70-50-1 + Details
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