DEBT - SCHEDULE OF SHORT-TERM DEBT (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Jun. 03, 2019
Short-term Debt [Line Items]
4.625% Senior notes due 2020	$ 0.0	$ 413.7
2019 Term Loan			$ 850.0
Short term debt issuance costs	0.4	0.7
Notes Payable, Current	2.1	2.2
Debt, Current	376.7	415.2
2019 Term Loan [Member]
Short-term Debt [Line Items]
2019 Term Loan	$ 375.0	$ 0.0