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REMEDIAL LIABILITIES - Estimates (Details) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 USD ($) facility | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Site Contingency [Line Items] |  |  |
Accrual for environmental loss contingencies | $ 116,290 | $ 111,873 | $ 114,813
% of Total | 100.00% |  |
Reasonably possible additional liabilities | $ 22,772 |  |
Loss contingency accrual | 37,100 | 36,100 |
Total remedial liabilities | 116,290 | 111,873 | $ 114,813
Legal and Administrative Proceedings |  |  |
Site Contingency [Line Items] |  |  |
Loss contingency accrual | 24,100 | $ 24,100 |
Inactive facilities not used in active conduct of the Company's business, most of which were assumed through prior period acquisitions (25 facilities) |  |  |
Site Contingency [Line Items] |  |  |
Accrual for environmental loss contingencies | $ 59,759 |  |
% of Total | 51.40% |  |
Reasonably possible additional liabilities | $ 10,295 |  |
Number of facility by type | facility | 25 |  |
Total remedial liabilities | $ 59,759 |  |
Facilities now used in active conduct of the Company's business (45 facilities) |  |  |
Site Contingency [Line Items] |  |  |
Accrual for environmental loss contingencies | $ 47,951 |  |
% of Total | 41.20% |  |
Reasonably possible additional liabilities | $ 11,189 |  |
Number of facility by type | facility | 45 |  |
Total remedial liabilities | $ 47,951 |  |
Superfund sites |  |  |
Site Contingency [Line Items] |  |  |
Accrual for environmental loss contingencies | $ 8,580 |  |
% of Total | 7.40% |  |
Reasonably possible additional liabilities | $ 1,288 |  |
Number of facility by type | facility | 16 |  |
Total remedial liabilities | $ 8,580 |  |
Superfund sites | Various |  |  |
Site Contingency [Line Items] |  |  |
Accrual for environmental loss contingencies | $ 8,580 |  |
% of Total | 7.40% |  |
Reasonably possible additional liabilities | $ 1,288 |  |
Number of facility by type | facility | 16 |  |
Total remedial liabilities | $ 8,580 |  |
Closed incinerator and landfill | Baton Rouge, LA |  |  |
Site Contingency [Line Items] |  |  |
Accrual for environmental loss contingencies | $ 26,604 |  |
% of Total | 22.90% |  |
Reasonably possible additional liabilities | $ 4,547 |  |
Total remedial liabilities | 26,604 |  |
Closed incinerator | Bridgeport, NJ |  |  |
Site Contingency [Line Items] |  |  |
Accrual for environmental loss contingencies | $ 18,089 |  |
% of Total | 15.60% |  |
Reasonably possible additional liabilities | $ 3,364 |  |
Total remedial liabilities | 18,089 |  |
Operating solvent recycling center | Linden, NJ |  |  |
Site Contingency [Line Items] |  |  |
Accrual for environmental loss contingencies | $ 14,479 |  |
% of Total | 12.50% |  |
Reasonably possible additional liabilities | $ 3,352 |  |
Total remedial liabilities | 14,479 |  |
Idled incinerator | Mercier, Quebec |  |  |
Site Contingency [Line Items] |  |  |
Accrual for environmental loss contingencies | $ 10,996 |  |
% of Total | 9.50% |  |
Reasonably possible additional liabilities | $ 1,659 |  |
Total remedial liabilities | 10,996 |  |
All other incinerators, landfills, wastewater treatment facilities and service centers (66 facilities) | Various |  |  |
Site Contingency [Line Items] |  |  |
Accrual for environmental loss contingencies | $ 37,542 |  |
% of Total | 32.10% |  |
Reasonably possible additional liabilities | $ 8,562 |  |
Number of facility by type | facility | 66 |  |
Total remedial liabilities | $ 37,542 |  |

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