CLOSURE AND POST-CLOSURE LIABILITIES

3 Months Ended

Mar. 31, 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 March 31, 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 obligations	891		—		891
Accretion	1,129		982		2,111
Changes in estimates recorded to consolidated statement of operations	—		53		53
Changes in estimates recorded to consolidated balance sheet	—		37		37
Expenditures	(1,604)		(27)		(1,631)
Currency translation and other	98		37		135
Balance at March 31, 2022	$	53,939	$	46,760	$	100,699

In the three months ended March 31, 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 three months of 2022 were discounted at the credit-adjusted risk-free rate of 5.37%.