GOODWILL AND INTANGIBLES (Details 2) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Schedule Of Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	$ 773.3	$ 777.8	$ 765.3
Finite-Lived Intangible Assets, Accumulated Amortization	(392.3)	(378.4)	(333.9)
Finite-Lived Intangible Assets, Net	381.0	399.4	431.4
Customers, customer contracts and relationships
Schedule Of Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	677.2	681.0	671.7
Finite-Lived Intangible Assets, Accumulated Amortization	(323.5)	(312.5)	(272.5)
Finite-Lived Intangible Assets, Net	353.7	368.5	399.2
Trade name
Schedule Of Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	0.0	0.0	7.0
Finite-Lived Intangible Assets, Accumulated Amortization	0.0	0.0	(6.3)
Finite-Lived Intangible Assets, Net	0.0	0.0	0.7
Acquired technology
Schedule Of Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	94.3	95.0	84.8
Finite-Lived Intangible Assets, Accumulated Amortization	(68.2)	(65.3)	(54.5)
Finite-Lived Intangible Assets, Net	26.1	29.7	30.3
Other
Schedule Of Finite Lived And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	1.8	1.8	1.8
Finite-Lived Intangible Assets, Accumulated Amortization	(0.6)	(0.6)	(0.6)
Finite-Lived Intangible Assets, Net	$ 1.2	$ 1.2	$ 1.2