Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 17.4	$ 5.1
Other comprehensive income
Foreign currency translation adjustments	4.3	7.6
Pension and other postretirement benefits adjustments, net of tax of $0.4 and $0.3 for 2017 and 2016, respectively	0.8	0.5
Derivatives designated as hedges, net of tax of $0.3 and ($1.4) for 2017 and 2016, respectively	0.4	(2.2)
Other comprehensive income	5.5	5.9
Comprehensive income	$ 22.9	$ 11.0