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v3.23.2

SEGMENT REPORTING - Reconciliation to Consolidated Statements of Income to Adjusted EBITDA (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Segment Reporting Information [Line Items] |  |  |  |  |
Adjusted EBITDA | $ 287,506 |  | $ 309,070 | $ 502,644 | $ 489,329
Reconciliation to Consolidated Statements of Operations: |  |  |  |  |
Accretion of environmental liabilities | 3,486 |  | 3,197 | 6,893 | 6,353
Stock-based compensation | 4,500 |  | 6,835 | 10,518 | 12,547
Depreciation and amortization | 89,697 |  | 87,868 | 174,455 | 172,166
Income from operations | 189,823 |  | 211,170 | 310,778 | 298,263
Other expense (income), net | 1,283 |  | (1,265) | 1,167 | (1,969)
Loss on early extinguishment of debt | 0 | $ 2,400 | 0 | 2,362 | 0
Gain on sale of business | 0 |  | (8,864) | 0 | (8,864)
Interest expense, net of interest income | 30,072 |  | 26,256 | 50,704 | 51,273
Income before provision for income taxes | 158,468 |  | 195,043 | 256,545 | 257,823
Operating Segments | Environmental Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Adjusted EBITDA | 305,622 |  | 269,341 | 533,967 | 452,943
Operating Segments | Safety-Kleen Sustainability Solutions |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Adjusted EBITDA | 53,415 |  | 97,010 | 94,878 | 148,887
Corporate |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Adjusted EBITDA | $ (71,531) |  | $ (57,281) | $ (126,201) | $ (112,501)

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