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GOODWILL AND INTANGIBLES - Schedule of Amortization Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]    
Amortization expense $ 2.9  
Impairment of intangible assets, finite lived 1.9  
2019 0.3  
2020 0.3  
2021 0.3  
2022 0.2  
2023 and after 0.4  
Net Book Value $ 1.5 $ 4.4