INCENTIVE PLANS (Cash and Stock Consideration Received and Tax Benefit Realized from SOSAR Exercises and Compensation Cost Recorded) (Details) - SOSARs [Member] - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash and stock consideration received from exercises	$ 0	$ 0	$ 0
Tax benefit from exercises	29,000	19,083	5,331
Compensation cost	$ 4,042	$ 4,763	$ 3,723

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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