CLOSURE AND POST-CLOSURE LIABILITIES

9 Months Ended

Sep. 30, 2018

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, 2018 through September 30, 2018 were as follows (in thousands):

	Landfill Retirement Liability			Non-Landfill Retirement Liability			Total
Balance at January 1, 2018	$	32,382		$	28,655		$	61,037
Liabilities assumed in acquisition	—			354			354
New asset retirement obligations	2,052			—			2,052
Accretion	1,898			1,897			3,795
Changes in estimates recorded to statement of operations	—			400			400
Changes in estimates recorded to balance sheet	871			64			935
Expenditures	(787		)	(269		)	(1,056		)
Currency translation and other	(79		)	(57		)	(136		)
Balance at September 30, 2018	$	36,337		$	31,044		$	67,381

All of the landfill facilities included in the above were active as of September 30, 2018. There were no significant charges (benefits) in 2018 resulting from changes in estimates for closure and post-closure liabilities.

New asset retirement obligations incurred during the first nine months of 2018 were discounted at the credit-adjusted risk-free rate of 5.66%.