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SHARE-BASED COMPENSATION PLANS (Narrative) (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock authorized 100,000,000 100,000,000  
2014 Omnibus Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock authorized 2,400,000    
Non Qualfied Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total intrinsic value of stock options exercised $ 5.2 $ 8.7 $ 10.1
Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Requisite service period 3 years    
Aggregate Intrinsic Value, Outstanding $ 12.5    
Unrecognized compensation cost $ 4.8    
Unrecognized compensation expense, period of recognition 1 year 8 months 12 days    
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Requisite service period 3 years    
Aggregate Intrinsic Value, Outstanding $ 26.4    
Unrecognized compensation cost $ 8.8    
Unrecognized compensation expense, period of recognition 2 years    
Employee Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Purchase price percentage of fair market value 85.00%