Other Comprehensive (Loss) Earnings - Amounts Recognized in OCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Foreign currency translation:
Foreign currency translation, before tax	$ 0.8	$ (71.7)	$ (78.6)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent	0.0	0.0	0.0
Foreign currency translation, net of tax	0.8	(71.7)	(78.6)
Employee benefit plans:
Employee benefit plans, before Tax	(5.0)	0.2	(4.4)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax, Portion Attributable to Parent	(0.1)	0.0	0.9
Net change in employee benefit plans	(5.1)	0.2	(3.5)
Changes in fair value of cash flow hedges:
Change in fair value of cash flow hedges, before tax	(2.2)	(1.4)	(0.3)
Change in fair value of cash flow hedges, tax	0.6	0.0	0.1
Total cash flow hedges	(1.6)	(1.4)	(0.2)
Total:
Other Comprehensive Income (Loss), before tax	(6.4)	(72.9)	(83.3)
Other Comprehensive Income (Loss), tax	0.5	0.0	1.0
Other comprehensive loss, net of tax	$ (5.9)	$ (72.9)	$ (82.3)