INCOME TAXES - Income (Loss) from Continuing Operations Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
United States	$ 84.5	$ 80.5	$ 65.8
Foreign	3.1	3.5	0.3
Income from continuing operations before income taxes	$ 87.6	$ 84.0	$ 66.1

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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