EMPLOYEE RELATED LIABILITIES (Schedule of Impact of One-Percentage Point Change in Assumed Health Care Cost) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($)
Postemployment Benefits [Abstract]
Effect on service cost and interest cost, Increase	$ 4
Effect on post-retirement benefit obligation, Increase	40
Effect on service cost and interest cost, Decrease	(3)
Effect on post-retirement benefit obligation, Decrease	$ (32)

Amount of decrease in accumulated postretirement benefit obligation from one-percentage-point decrease in assumed health care cost trend rate.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (m)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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- Definition

Amount of decrease in service and interest cost components of net periodic postretirement benefit cost from one-percentage-point decrease in assumed health care cost trend rate.

+ References

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- Definition

Amount of increase in accumulated postretirement benefit obligation from one-percentage-point increase in assumed health care cost trend rate.

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- Definition

Amount of increase in service and interest cost components of net periodic postretirement benefit cost from one-percentage-point increase in assumed health care cost trend rate.

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- References

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