ACCRUED FINAL CAPPING, CLOSURE AND POST CLOSURE (Tables)

6 Months Ended

Jun. 30, 2023

Asset Retirement Obligation Disclosure [Abstract]

Summary of Changes to Accrued Capping, Closure and Post-Closure Liabilities

A summary of the changes to accrued final capping, closure and post-closure liabilities follows:

	Six Months Ended June 30,
	2023		2022
Beginning balance	$	113,678	$	86,914
Obligations incurred	2,615		2,244
Revision in estimates (1)	—		1,443
Accretion expense	4,809		3,799
Obligations settled (2)	(2,386)		(2,027)
Ending balance	$	118,716	$	92,373

(1)Relates to a change in estimates concerning anticipated capping costs at one of our landfills.

(2)May include amounts that are being processed through accounts payable as a part of our disbursements cycle.