Accumulated Other Comprehensive (Loss) Income - Schedule of Changes in AOCI (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ (387.6)
Other Comprehensive (Loss) Income before Reclassifications	17.6
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	0.1
Total Other Comprehensive Income, Net of Tax	17.7	$ 6.6
Ending balance	(369.9)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(5.4)
Other Comprehensive (Loss) Income before Reclassifications	(1.3)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	(0.6)
Total Other Comprehensive Income, Net of Tax	(1.9)
Ending balance	(7.3)
Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(146.7)
Other Comprehensive (Loss) Income before Reclassifications	18.9
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	0.0
Total Other Comprehensive Income, Net of Tax	18.9
Ending balance	(127.8)
Pension and Postretirement Benefit Plans | Pension Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(250.2)
Other Comprehensive (Loss) Income before Reclassifications	0.0
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	1.1
Total Other Comprehensive Income, Net of Tax	1.1
Ending balance	(249.1)
Pension and Postretirement Benefit Plans | Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	14.7
Other Comprehensive (Loss) Income before Reclassifications	0.0
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	(0.4)
Total Other Comprehensive Income, Net of Tax	(0.4)
Ending balance	$ 14.3