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INCOME TAXES - Income (Loss) from Continuing Operations Before Income Taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
United States $ 65.8 $ 62.8 $ 45.6
Foreign 0.3 0.1 (0.1)
Income from continuing operations before income taxes $ 66.1 $ 62.9 $ 45.5