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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Unrecognized Compensation Expense) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized Compensation Expense, Total/weighted-average $ 21,751
Expected Weighted-average Recognition (Years) 1 year 8 months 12 days
SOSARs [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized Compensation Expense, SOSARs $ 2,168 [1]
Expected Weighted-average Recognition (Years) 1 year 2 months 12 days [1]
Performance Shares [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized Compensation Expense, shares $ 11,580
Expected Weighted-average Recognition (Years) 1 year 8 months 12 days
Restricted Shares [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized Compensation Expense, shares $ 8,003
Expected Weighted-average Recognition (Years) 1 year 9 months 18 days
[1] Stock-Only Stock Appreciation Rights (SOSARs)