XML 28 R19.htm IDEA: XBRL DOCUMENT v3.22.2
CLOSURE AND POST-CLOSURE LIABILITIES
 6 Months Ended
Jun. 30, 2022
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, 2022 through June 30, 2022 were as follows (in thousands):
Landfill
Retirement
Liability		Non-Landfill
Retirement
Liability		Total
Balance at January 1, 2022$53,425 $45,678 $99,103 
New asset retirement obligations1,657 — 1,657 
Accretion2,250 1,993 4,243 
Changes in estimates recorded to consolidated statement of operations329 47 376 
Changes in estimates recorded to consolidated balance sheet— 504 504 
Expenditures(2,126)(622)(2,748)
Currency translation and other(100)(38)(138)
Balance at June 30, 2022$55,435 $47,562 $102,997 
In the six months ended June 30, 2022, there were no significant charges or benefits resulting from changes in estimates for closure and post-closure liabilities.
New asset retirement obligations incurred during the first six months of 2022 were discounted at the credit-adjusted risk-free rate of 5.37%.