BUSINESS COMBINATIONS (Tables)

12 Months Ended

Dec. 31, 2024

Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The following table summarizes the preliminary determination and recognition of assets acquired and liabilities assumed (in thousands):

	At Acquisition Date As Reported December 31, 2024
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

The following table summarizes the preliminary determination and recognition of assets acquired and liabilities assumed (in thousands):

	At Acquisition Date As Reported December 31, 2024
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

The following table summarizes the preliminary and final determination and recognition of assets acquired and liabilities assumed (in thousands):

	Preliminary Allocation As Reported December 31, 2023		Measurement Period Adjustments		Final Allocation as Reported December, 31, 2024
Accounts receivable, including unbilled receivables	$	25,233	$	(73)	$	25,160
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	(7,185)		(55)		(7,240)
Accrued expenses and other current liabilities	(3,200)		(90)		(3,290)
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	71,509		(218)		71,291
Goodwill	39,346		218		39,564
Total purchase price	$	110,855	$	—	$	110,855

The following table summarizes the final determination and recognition of assets acquired and liabilities assumed (in thousands):

	Final Allocation
Accounts receivable	$	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