CLOSURE AND POST-CLOSURE LIABILITIES (Tables)

3 Months Ended

Mar. 31, 2026

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Closure and Post-Closure Liabilities

The changes to closure and post-closure liabilities (also referred to as “asset retirement obligations”) from January 1, 2026 through March 31, 2026 were as follows (in thousands):


	Landfill Retirement Liability		Non-Landfill Retirement Liability		Total
Balance at January 1, 2026	$	59,763	$	75,565	$	135,328


New asset retirement obligations	874		—		874

Accretion	1,245		1,401		2,646
Changes in estimates recorded to consolidated statement of operations	(1,908)		29		(1,879)
Changes in estimates recorded to consolidated balance sheet	—		192		192
Expenditures	(932)		(60)		(992)
Currency translation and other	(43)		(660)		(703)
Balance at March 31, 2026	$	58,999	$	76,467	$	135,466