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CLOSURE AND POST-CLOSURE LIABILITIES
 3 Months Ended
Mar. 31, 2023
Asset Retirement Obligation Disclosure [Abstract]  
CLOSURE AND POST-CLOSURE LIABILITIES CLOSURE AND POST-CLOSURE LIABILITIES
The changes to closure and post-closure liabilities (also referred to as “asset retirement obligations”) from January 1, 2023 through March 31, 2023 were as follows (in thousands):
Landfill
Retirement
Liability		Non-Landfill
Retirement
Liability		Total
Balance at January 1, 2023$62,251 $56,550 $118,801 
Measurement period adjustments from prior period acquisitions— 3,015 3,015 
New asset retirement obligations641 — 641 
Accretion1,286 1,056 2,342 
Changes in estimates recorded to consolidated statement of operations— 24 24 
Changes in estimates recorded to consolidated balance sheet— 1,437 1,437 
Expenditures(3,187)(1,472)(4,659)
Currency translation and other7 3 10 
Balance at March 31, 2023$60,998 $60,613 $121,611 
During the three months ended March 31, 2023, the Company's non-commercial landfill at the Deer Park, Texas incineration facility reached its permitted capacity, as expected. The Company has commenced closure activities; however, there have been no changes to the liabilities related to this location. In the three months ended March 31, 2023, there were no significant benefits or charges resulting from changes in estimates for closure and post-closure liabilities.