BUSINESS COMBINATIONS - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Business Acquisition [Line Items]
Goodwill	$ 1,477,307	$ 1,477,199
Measurement Period Adjustments, Goodwill	47
HEPACO
Business Acquisition [Line Items]
Accounts receivable, including unbilled receivables	68,216	69,072
Inventories and supplies	384	384
Prepaid expenses and other current assets	4,260	4,383
Property, plant and equipment	47,510	47,125
Permits and other intangibles	130,500	130,500
Operating lease right-of-use assets	9,385	9,385
Other long-term assets	6,845	5,712
Accounts payable	(30,602)	(30,602)
Accrued expenses and other current liabilities	(16,305)	(16,005)
Current portion of operating lease liabilities	(2,758)	(2,758)
Operating lease liabilities, less current portion	(6,627)	(6,627)
Closure and post-closure liabilities	(2,877)	(2,492)
Remedial liabilities	(2,435)	(2,435)
Other long-term liabilities	(374)	(374)
Total identifiable net assets	205,122	205,268
Goodwill	187,057	186,911
Total purchase price	392,179	392,179
Measurement Period Adjustments, Accounts receivable, including Unbilled receivables	(856)
Measurement Period Adjustments, Prepaid expenses and other current assets	(123)
Measurement Period Adjustments, Property, plant and equipment	385
Measurement Period Adjustments, Other long-term assets	1,133
Measurement Period Adjustments, Accrued expenses and other current liabilities	(300)
Measurement Period Adjustments, Closure and post closure liabilities	(385)
Measurement Period Adjustments, Total identifiable net assets	(146)
Measurement Period Adjustments, Goodwill	146
Measurement Period Adjustments, Total purchase price	0
Noble Oil Services , Inc. Acquisition
Business Acquisition [Line Items]
Accounts receivable, including unbilled receivables	5,847	5,855
Inventories and supplies	6,598	6,598
Prepaid expenses and other current assets	408	408
Property, plant and equipment	55,650	55,615
Permits and other intangibles	14,500	14,500
Operating lease right-of-use assets	3,615	3,615
Other long-term assets	92	92
Accounts payable	(7,752)	(7,752)
Accrued expenses and other current liabilities	(1,128)	(1,145)
Current portion of operating lease liabilities	(1,823)	(1,823)
Operating lease liabilities, less current portion	(1,792)	(1,792)
Closure and post-closure liabilities	(8,964)	(8,929)
Remedial liabilities	(2,667)	(2,757)
Total identifiable net assets	62,584	62,485
Goodwill	6,158	6,257
Total purchase price	68,742	$ 68,742
Measurement Period Adjustments, Accounts receivable, including Unbilled receivables	(8)
Measurement Period Adjustments, Property, plant and equipment	35
Measurement Period Adjustments, Accrued expenses and other current liabilities	17
Measurement Period Adjustments, Closure and post closure liabilities	(35)
Measurement Period Adjustments, Remedial liabilities	90
Measurement Period Adjustments, Total identifiable net assets	99
Measurement Period Adjustments, Goodwill	(99)
Measurement Period Adjustments, Total purchase price	$ 0