Equity - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Schedule of accumulated other comprehensive (loss) income
Balance at the beginning of the period	$ (99.7)
Current-period change	7.7
Balance at the end of the period	(92.0)
Deferred tax assets in accumulated other comprehensive loss, pension liabilities	15.6	$ 15.6
Foreign Currency Transaction (Loss) Gain
Schedule of accumulated other comprehensive (loss) income
Balance at the beginning of the period	(74.2)
Current-period change	7.7
Balance at the end of the period	(66.5)
Pension and Postretirement Benefit Adjustments, Net of Tax
Schedule of accumulated other comprehensive (loss) income
Balance at the beginning of the period	(25.5)
Balance at the end of the period	$ (25.5)