CLOSURE AND POST-CLOSURE LIABILITIES

3 Months Ended

Mar. 31, 2017

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, 2017 through March 31, 2017 were as follows (in thousands):

	Landfill Retirement Liability			Non-Landfill Retirement Liability			Total
Balance at January 1, 2017	$	30,630		$	27,701		$	58,331
Measurement period adjustments from prior period acquisitions	—			596			596
New asset retirement obligations	431			—			431
Accretion	534			623			1,157
Changes in estimates recorded to statement of operations	—			(6		)	(6		)
Expenditures	(119		)	(73		)	(192		)
Currency translation and other	20			14			34
Balance at March 31, 2017	$	31,496		$	28,855		$	60,351

All of the landfill facilities included in the above were active as of March 31, 2017. There were no significant charges (benefits) in 2017 resulting from changes in estimates for closure and post-closure liabilities.

New asset retirement obligations incurred during the first three months of 2017 were discounted at the credit-adjusted risk-free rate of 6.12%.