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COMMITMENTS AND CONTINGENCIES - Schedule of Environmental Liability Associated with Potsdam (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accrual for Environmental Loss Contingencies [Roll Forward]
Ending balance	$ 5,747
Potsdam Environmental Remediation Liability
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	5,614	$ 5,758
Obligations settled	(4,463)	(171)
Obligations incurred	0	27
Ending balance	$ 1,151	$ 5,614

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- Definition

Accrual For Environmental Loss Contingencies, Obligations Incurred

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- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
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- Definition

Amount of cash outflow to settle environmental loss contingencies.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-Topic 450
-SubTopic 20
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