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COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($)
COMMITMENTS AND CONTINGENCIES
Percentage of vehicles in which certain employees at some of the facilities altered emissions controls systems	5.00%
Litigation Settlement Accrual	$ 4.3
Litigation Payment Accrual	$ 1.7

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Amount of loss contingency liability.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
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Amount of cash outflow reducing loss contingency liability.

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-Topic 450
-SubTopic 20
-Section 50
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Represents the percentage of vehicles in which certain employees at some of the facilities altered emissions controls systems.

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