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REVENUES FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Millions | 12 Months Ended |
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Jan. 31, 2023 | Jan. 31, 2022 | Apr. 30, 2023
REVENUES FROM CONTRACTS WITH CUSTOMERS |  |  |
Revenue recognized | $ 50.9 | $ 67.3 |
Retained amounts by project owners | $ 49.1 |  | $ 25.0
Amounts of unpriced change orders included in transaction prices | 11.6 |  | 12.2

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- Definition The amounts retained by project owners under construction contracts. + References No definition available. + Details
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- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130549-203045 + Details
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