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SEGMENT REPORTING (Tables) | 12 Months Ended
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Dec. 31, 2022
Segment Reporting [Abstract] |
Schedule of Reconciliation of Third Party Revenues to Direct Revenues | The following tables reconcile third-party revenues to direct revenues for the years ended December 31, 2022, 2021 and 2020 (in thousands):
| For the year ended December 31, 2022
| Environmental Services |  | Safety-Kleen Sustainability Solutions |  | Corporate Items |  | Totals
Third-party revenues | $ | 4,144,973 |  |  | $ | 1,021,125 |  |  | $ | 507 |  |  | $ | 5,166,605 |
Intersegment revenues (expense), net | 26,733 |  |  | (26,733) |  |  | — |  |  | — |
Direct revenues | $ | 4,171,706 |  |  | $ | 994,392 |  |  | $ | 507 |  |  | $ | 5,166,605 |
| For the year ended December 31, 2021
| Environmental Services |  | Safety-Kleen Sustainability Solutions |  | Corporate Items |  | Totals
Third-party revenues | $ | 3,025,907 |  |  | $ | 779,360 |  |  | $ | 299 |  |  | $ | 3,805,566 |
Intersegment revenues (expense), net | 6,547 |  |  | (6,547) |  |  | — |  |  | — |
Direct revenues | $ | 3,032,454 |  |  | $ | 772,813 |  |  | $ | 299 |  |  | $ | 3,805,566 |
| For the year ended December 31, 2020
| Environmental Services |  | Safety-Kleen Sustainability Solutions |  | Corporate Items |  | Totals
Third-party revenues | $ | 2,637,641 |  |  | $ | 506,166 |  |  | $ | 290 |  |  | $ | 3,144,097 |
Intersegment revenues (expense), net | (1,740) |  |  | 1,740 |  |  | — |  |  | — |
Direct revenues | $ | 2,635,901 |  |  | $ | 507,906 |  |  | $ | 290 |  |  | $ | 3,144,097 |
Schedule of Reconciliation to Consolidated Statements of Income to Adjusted EBITDA | The following table presents Adjusted EBITDA information used by management by reported segment (in thousands):
| For the years ended December 31,
| 2022 |  | 2021 |  | 2020
Adjusted EBITDA: |  |  |  |  |
Environmental Services | $ | 953,053 |  |  | $ | 659,718 |  |  | $ | 665,918 |
Safety-Kleen Sustainability Solutions | 306,327 |  |  | 227,354 |  |  | 83,214 |
Corporate Items | (237,252) |  |  | (210,466) |  |  | (175,328) |
Total | 1,022,128 |  |  | 676,606 |  |  | 573,804 |
Reconciliation to Consolidated Statements of Operations: |  |  |  |  |
Accretion of environmental liabilities | 12,943 |  |  | 11,745 |  |  | 11,051 |
Stock-based compensation | 26,844 |  |  | 18,839 |  |  | 18,502 |
Depreciation and amortization | 347,594 |  |  | 298,135 |  |  | 292,915 |
Income from operations | 634,747 |  |  | 347,887 |  |  | 251,336 |
Other (income) expense, net | (2,472) |  |  | 515 |  |  | 290 |
Loss on early extinguishment of debt | 422 |  |  | — |  |  | — |
(Gain) loss on sale of businesses | (8,864) |  |  | — |  |  | 3,376 |
Interest expense, net of interest income | 107,663 |  |  | 77,657 |  |  | 73,120 |
Income from operations before provision for income taxes | $ | 537,998 |  |  | $ | 269,715 |  |  | $ | 174,550 |
Schedule of Segment Reporting Information, by Segment | The following table presents assets by reported segment and in the aggregate (in thousands):
| December 31, 2022 |  | December 31, 2021
Property, plant and equipment, net |  |  |
Environmental Services | $ | 1,467,641 |  |  | $ | 1,374,913 |
Safety-Kleen Sustainability Solutions | 398,660 |  |  | 373,721 |
Corporate Items | 114,001 |  |  | 114,541 |
Total property, plant and equipment, net | $ | 1,980,302 |  |  | $ | 1,863,175 |
Goodwill and Permits and other intangibles, net |  |  |
Environmental Services |  |  |
Goodwill | $ | 1,071,846 |  |  | $ | 1,085,534 |
Permits and other intangibles, net | 462,050 |  |  | 498,739 |
Total Environmental Services | 1,533,896 |  |  | 1,584,273 |
Safety-Kleen Sustainability Solutions |  |  |
Goodwill | $ | 175,032 |  |  | $ | 141,508 |
Permits and other intangibles, net | 158,732 |  |  | 146,173 |
Total Safety-Kleen Sustainability Solutions | 333,764 |  |  | 287,681 |
Total | $ | 1,867,660 |  |  | $ | 1,871,954 |
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas | As of December 31, 2022 and 2021, the Company had property, plant and equipment, net of depreciation and amortization and permits and other intangible assets, net of amortization in the following geographic locations (in thousands):
| December 31, 2022 |  | December 31, 2021
| Total |  | % of Total |  | Total |  | % of Total
Property, plant and equipment, net |  |  |  |  |  |  |
United States | $ | 1,765,291 |  |  | 89.1 | % |  | $ | 1,610,402 |  |  | 86.4 | %
Canada and other foreign | 215,011 |  |  | 10.9 |  |  | 252,773 |  |  | 13.6 |
Total property, plant and equipment, net | $ | 1,980,302 |  |  | 100.0 | % |  | $ | 1,863,175 |  |  | 100.0 | %
Permits and other intangibles, net |  |  |  |  |  |  |
United States | $ | 585,887 |  |  | 94.4 | % |  | $ | 604,076 |  |  | 93.7 | %
Canada and other foreign | 34,895 |  |  | 5.6 |  |  | 40,836 |  |  | 6.3 |
Total permits and other intangibles, net | $ | 620,782 |  |  | 100.0 | % |  | $ | 644,912 |  |  | 100.0 | %
Schedule of Long-lived Assets by Geographic Areas | The following table presents the total assets by geographical area (in thousands):
| December 31, 2022 |  | December 31, 2021 |  |
United States | $ | 5,595,255 |  |  | $ | 5,077,585 |  |  |
Canada and other foreign | 534,452 |  |  | 576,114 |  |  |
Total | $ | 6,129,707 |  |  | $ | 5,653,699 |  |  |

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