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BUSINESS COMBINATIONS - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Dec. 31, 2022
Business Acquisition [Line Items] |  |  |  |
Goodwill | $ 1,477,199 | $ 1,287,736 |  | $ 1,246,878
Measurement Period Adjustments, Goodwill | 218 | 360 |  |
HEPACO |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Accounts receivable, including unbilled receivables | 69,072 |  |  |
Inventories and supplies | 384 |  |  |
Prepaid expenses and other current assets | 4,383 |  |  |
Property, plant and equipment | 47,125 |  |  |
Permits and other intangibles | 130,500 |  |  |
Operating lease right-of-use assets | 9,385 |  |  |
Other long-term assets | 5,712 |  |  |
Accounts payable | (30,602) |  |  |
Accrued expenses and other current liabilities | (16,005) |  |  |
Current portion of operating lease liabilities | (2,758) |  |  |
Operating lease liabilities, less current portion | (6,627) |  |  |
Closure and post-closure liabilities | (2,492) |  |  |
Remedial liabilities | (2,435) |  |  |
Other long-term liabilities | (374) |  |  |
Total identifiable net assets | 205,268 |  |  |
Goodwill | 186,911 |  |  |
Total purchase price | 392,179 |  |  |
Noble Oil Services , Inc. Acquisition |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Accounts receivable, including unbilled receivables | 5,855 |  |  |
Inventories and supplies | 6,598 |  |  |
Prepaid expenses and other current assets | 408 |  |  |
Property, plant and equipment | 55,615 |  |  |
Permits and other intangibles | 14,500 |  |  |
Operating lease right-of-use assets | 3,615 |  |  |
Other long-term assets | 92 |  |  |
Accounts payable | (7,752) |  |  |
Accrued expenses and other current liabilities | (1,145) |  |  |
Current portion of operating lease liabilities | (1,823) |  |  |
Operating lease liabilities, less current portion | (1,792) |  |  |
Closure and post-closure liabilities | (8,929) |  |  |
Remedial liabilities | (2,757) |  |  |
Total identifiable net assets | 62,485 |  |  |
Goodwill | 6,257 |  |  |
Total purchase price | 68,742 |  |  |
Thompson Industrial |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Accounts receivable, including unbilled receivables | 25,160 | 25,233 |  |
Inventories and supplies | 228 | 228 |  |
Prepaid expenses and other current assets | 1,302 | 1,302 |  |
Property, plant and equipment | 26,719 | 26,719 |  |
Permits and other intangibles | 28,900 | 28,900 |  |
Operating lease right-of-use assets | 4,716 | 4,716 |  |
Other long-term assets | 72 | 72 |  |
Accounts payable | (7,240) | (7,185) |  |
Accrued expenses and other current liabilities | (3,290) | (3,200) |  |
Current portion of operating lease liabilities | (1,653) | (1,653) |  |
Operating lease liabilities, less current portion | (3,063) | (3,063) |  |
Other long-term liabilities | (560) | (560) |  |
Total identifiable net assets | 71,291 | 71,509 |  |
Goodwill | 39,564 | 39,346 |  |
Total purchase price | 110,855 | $ 110,855 |  |
Measurement Period Adjustments, Accounts receivable | (73) |  |  |
Measurement Period Adjustments, Accounts payable | (55) |  |  |
Measurement Period Adjustments, Accrued expenses and other current liabilities | (90) |  |  |
Measurement Period Adjustments, Total identifiable net assets | (218) |  |  |
Measurement Period Adjustments, Goodwill | 218 |  |  |
Measurement Period Adjustments, Total purchase price | $ 0 |  |  |
June 17, 2022 Acquisition |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Accounts receivable, including unbilled receivables |  |  | $ 1,089 |
Inventories and supplies |  |  | 5,745 |
Prepaid expenses and other current assets |  |  | 144 |
Property, plant and equipment |  |  | 22,231 |
Permits and other intangibles |  |  | 23,500 |
Operating lease right-of-use assets |  |  | 585 |
Other long-term assets |  |  | 13 |
Accrued expenses and other current liabilities |  |  | (3,375) |
Current portion of operating lease liabilities |  |  | (186) |
Operating lease liabilities, less current portion |  |  | (399) |
Other long-term liabilities |  |  | (2,681) |
Total identifiable net assets |  |  | 46,666 |
Goodwill |  |  | 32,212 |
Total purchase price |  |  | $ 78,878 |

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