Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 9.1	$ 18.3	$ 22.7	$ 33.2
Other comprehensive (loss) income:
Change in foreign currency translation adjustment	(3.1)	4.6	6.0	(7.3)
Change in unrecognized net actuarial losses related to pension benefit plans, net of income tax expense of $0.7, $0.4, $1.5 and $1.3, respectively	2.0	0.3	3.8	2.2
Change in unrealized net gain on derivatives, net of income tax	0.0	0.0	(0.1)	0.0
Total other comprehensive (loss) income	(1.1)	4.9	9.7	(5.1)
Comprehensive income	$ 8.0	$ 23.2	$ 32.4	$ 28.1