STOCK-BASED COMPENSATION (Restricted Stock) - Non-Employee Directors' Stock Incentive Plan 2012 [Member] - Restricted Stock [Member] - $ / shares shares in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Compensation Arrangement with Individual, Shares Issued	0	0	36
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value			$ 62.82

Number of shares issued pursuant to the terms of a deferred compensation arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
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-Publisher FASB
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