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BASIS OF PRESENTATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Basis of Presentation [Line Items]
Other components of net periodic pension income	$ 1,008	$ 2,079
Operating Income (Loss) [Member] | Adjustments for New Accounting Pronouncement [Member]
Basis of Presentation [Line Items]
Other components of net periodic pension income		2,079
Cost of Sales [Member] | Adjustments for New Accounting Pronouncement [Member]
Basis of Presentation [Line Items]
Other components of net periodic pension income		1,193
Selling, General and Administrative Expenses [Member] | Adjustments for New Accounting Pronouncement [Member]
Basis of Presentation [Line Items]
Other components of net periodic pension income		$ 886

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[Line Items] for Basis of Presentation [Table]

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Amount of defined benefit plan cost (credit), classified as other.

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