CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 37.6	$ 1.5	$ 104.5	$ 62.2
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	5.9	(13.5)	15.9	(58.0)
Defined benefit pension and other postretirement plan adjustments, net of tax of $0.3, $11.4, $0.9 and $12.3, respectively	0.6	19.7	2.2	21.3
Net gains (losses) on derivatives, net of tax of $(0.1), $(0.1), $0.4 and $0.7, respectively	0.0	(0.4)	0.7	1.5
Other comprehensive income (loss), net of tax	6.5	5.8	18.8	(35.2)
Comprehensive income	$ 44.1	$ 7.3	$ 123.3	$ 27.0