Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 17.2	$ 33.5	$ 78.7	$ 86.9
Other comprehensive income (loss), net of income taxes
Foreign currency translation adjustments	0.3	(9.8)	(25.0)	(13.4)
Pension and other postretirement benefits adjustments	1.8	1.1	4.6	3.9
Derivatives designated as hedges	(0.1)	(0.2)	(4.5)	(1.8)
Other comprehensive income (loss)	2.0	(8.9)	(24.9)	(11.3)
Comprehensive income	$ 19.2	$ 24.6	$ 53.8	$ 75.6