CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 91.2	$ 66.1	$ 165.5	$ 121.5
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	13.0	(0.7)	(34.3)	3.7
Defined benefit pension and other postretirement plan adjustments, net of tax of $(1.7), $0, $(1.1), and $0, respectively	(5.8)	0.1	(3.8)	(0.2)
Net (loss) gain on derivatives, net of tax of $(1.5), $0.8, $(0.2) and $(0.8), respectively	(2.7)	1.8	(0.1)	(1.5)
Other comprehensive income (loss), net of tax	4.5	1.2	(38.2)	2.0
Comprehensive income	$ 95.7	$ 67.3	$ 127.3	$ 123.5