Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 10.4	$ 3.6
Other comprehensive (loss) income, net of tax:
Unrealized income (loss) on derivative instruments, net of tax (expense) benefit of $(0.3) and $0.7, respectively	0.6	(1.9)
Foreign currency translation adjustments, net of tax (expense) benefit of $(2.7) and $0.0, respectively	(4.3)	12.5
Recognition of deferred pension and other post-retirement items, net of tax benefit of $0.9 and $0.1, respectively	(2.6)	(0.5)
Other comprehensive (loss) income, net of tax	(6.3)	10.1
Comprehensive income	$ 4.1	$ 13.7