COMMITMENTS AND CONTINGENCIES (Tables)

9 Months Ended

Sep. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Summary of Environmental Liability Associated with Potsdam

A summary of the changes to the environmental remediation liability associated with the Potsdam environmental remediation liability follows:

	Nine Months Ended September 30,
	2016			2015
Beginning balance	$	5,221		$	5,142
Accretion expense	—			59
Obligations settled (1)	(255		)	—
Ending balance	$	4,966		$	5,201

(1) Includes amounts that are being processed through accounts payable as a part of our disbursement cycle.