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REVENUES - Narrative (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) source | Dec. 31, 2023 USD ($)
Disaggregation of Revenue [Line Items] |  |
Deferred contract cost, recognition period | 3 months |
Deferred contracts costs | $ | $ 28.2 | $ 29.9
Environmental Services |  |
Disaggregation of Revenue [Line Items] |  |
Number of revenue sources | 4 |
Safety-Kleen Sustainability Solutions |  |
Disaggregation of Revenue [Line Items] |  |
Number of revenue sources | 2 |

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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
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