REMEDIAL LIABILITIES (Tables)

6 Months Ended

Jun. 30, 2018

Environmental Remediation Obligations [Abstract]

Changes to remedial liabilities

The changes to remedial liabilities for the six months ended June 30, 2018 were as follows (in thousands):

	Remedial Liabilities for Landfill Sites			Remedial Liabilities for Inactive Sites			Remedial Liabilities (Including Superfund) for Non-Landfill Operations			Total
Balance at January 1, 2018	$	1,800		$	65,342		$	57,326		$	124,468
Accretion	43			1,375			931			2,349
Changes in estimates recorded to statement of operations	—			83			(841		)	(758		)
Expenditures	(23		)	(1,939		)	(2,176		)	(4,138		)
Currency translation and other	—			882			(1,528		)	(646		)
Balance at June 30, 2018	$	1,820		$	65,743		$	53,712		$	121,275