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INCOME TAXES (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Income Tax Disclosure [Abstract]          
Unrecognized tax benefits $ 5.7   $ 5.7   $ 4.5
Decrease in income tax expense $ 1.7   $ 4.3    
Effective tax rate 6.40% 28.10% 12.00% 22.50%  
Decrease in effective tax rate 21.70%   10.50%