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v3.24.2

SEGMENT REPORTING - Reconciliation to Consolidated Statements of Income to Adjusted EBITDA (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Segment Reporting Information [Line Items] |  |  |  |
Adjusted EBITDA | $ 327,816 | $ 287,506 | $ 557,911 | $ 502,644
Reconciliation to Consolidated Statements of Operations: |  |  |  |
Accretion of environmental liabilities | 3,304 | 3,486 | 6,521 | 6,893
Stock-based compensation | 8,515 | 4,500 | 14,853 | 10,518
Depreciation and amortization | 100,504 | 89,697 | 195,569 | 174,455
Income from operations | 215,493 | 189,823 | 340,968 | 310,778
Other expense, net | 167 | 1,283 | 1,308 | 1,167
Loss on early extinguishment of debt | 0 | 0 | 0 | 2,362
Interest expense, net of interest income | 36,449 | 30,072 | 64,988 | 50,704
Income before provision for income taxes | 178,877 | 158,468 | 274,672 | 256,545
Operating Segments | Environmental Services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjusted EBITDA | 359,915 | 305,622 | 624,390 | 533,967
Operating Segments | Safety-Kleen Sustainability Solutions |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjusted EBITDA | 51,476 | 53,415 | 81,176 | 94,878
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjusted EBITDA | $ (83,575) | $ (71,531) | $ (147,655) | $ (126,201)

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