FOREIGN OPERATIONS (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 423.9	$ 420.0	$ 433.8	$ 450.2	$ 454.8	$ 448.6	$ 326.7	$ 260.7	$ 1,727.8	$ 1,490.8	$ 827.9
Long-lived Assets	4,076.7				4,160.8				4,076.7	4,160.8
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									789.1	785.4	627.6
Long-lived Assets	740.5				788.2				740.5	788.2
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									895.9	659.2	186.2
Long-lived Assets	3,255.0				3,290.1				3,255.0	3,290.1
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									42.8	46.2	$ 14.1
Long-lived Assets	$ 81.2				$ 82.5				$ 81.2	$ 82.5