INCOME TAXES - Components of the Company's Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current:
Federal	$ 5.0	$ 6.2	$ 4.6
State	3.7	1.6	5.4
Foreign	0.5	1.2	0.9
Total current taxes	9.2	9.0	10.9
Deferred:
Federal	(2.2)	8.7	11.0
State	(1.9)	0.2	3.4
Foreign	2.2	1.7	0.7
Total deferred taxes	(1.9)	10.6	15.1
Income tax expense (benefit)	$ 7.3	$ 19.6	$ 26.0