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CLOSURE AND POST-CLOSURE LIABILITIES - Changes in Post-Closure Liabilities (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2024
USD ($)
Changes to post-closure liabilities  
Beginning balance $ 118,600
New asset retirement obligations 947
Accretion 4,600
Changes in estimates recorded to consolidated statement of operations (182)
Changes in estimates recorded to consolidated balance sheet 97
Expenditures (4,664)
Currency translation and other (286)
Ending balance 119,112
Landfill Retirement Liability  
Changes to post-closure liabilities  
Beginning balance 59,443
New asset retirement obligations 947
Accretion 2,415
Changes in estimates recorded to consolidated statement of operations 0
Changes in estimates recorded to consolidated balance sheet 46
Expenditures (2,701)
Currency translation and other (160)
Ending balance 59,990
Non-Landfill Retirement Liability  
Changes to post-closure liabilities  
Beginning balance 59,157
New asset retirement obligations 0
Accretion 2,185
Changes in estimates recorded to consolidated statement of operations (182)
Changes in estimates recorded to consolidated balance sheet 51
Expenditures (1,963)
Currency translation and other (126)
Ending balance $ 59,122