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INCOME TAXES (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Income Tax Disclosure [Abstract]          
Effective income tax rate 30.70% 30.80% 37.20% 48.00%  
Unrecognized tax benefits $ 4.8   $ 4.8   $ 3.2
Interest on unrecognized tax benefits $ 1.2   1.2   $ 0.8
Reduction in unrecognized tax benefits from expiring statue of limitations     $ 0.6