Consolidated Statements Of Comprehensive Income (Loss) (Unaudited) Consolidated Statements of comprehensive Income (Loss) Parenthetical - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Unrealized (loss) income on derivative instruments, net of tax benefit (expense) of $0.6 and $(0.3) and $1.3 and $0.9, respectively	$ 0.6	$ (0.3)	$ 1.3	$ 0.9
Foreign currency translation adjustments, net of tax benefit (expense) of $4.2 and $0.0 and $4.2 and $0.0, respectively	4.2	0.0	4.2	0.0
Recognition of deferred pension and other post-retirement items, net of tax benefit (expense) of $0.7 and $(1.8) and $0.8 and $(2.7), respectively	$ 0.7	$ (1.8)	$ 0.8	$ (2.7)