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SUMMARY OF PERFORMANCE-BASED AWARDS (Details) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Unvested (in shares) 307,614   307,614   195,305
Granted (in shares) 0 0 158,756 126,874  
Vested (in shares)     (25,909)    
Forfeited (in shares)     (20,538)    
Unvested, Weighted Average Fair Value (in dollars per share) $ 52.60   $ 52.60   $ 60.24
Granted, Weighted Average Fair Value (in dollars per share) $ 0 $ 0 48.67 $ 54.64  
Vested in Period, Weighted Average Fair Value (in dollars per share)     78.04    
Forfeited in Period, Weighted Average Fair Value (in dollars per share)     $ 71.47    
Share-based Payment Arrangement, Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Unvested (in shares) 307,614   307,614    
Share-based Payment Arrangement, Tranche Two [Member] | Net Income Growth Rate [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Unvested (in shares) 134,010   134,010    
Share-based Payment Arrangement, Tranche Two [Member] | Earnings Per Share Growth [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Unvested (in shares) 153,807   153,807    
Share-based Payment Arrangement, Tranche Two [Member] | Return on Net Assets [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]          
Unvested (in shares) 19,797   19,797