Restructuring Costs - Reserve (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/16	$ 7.9
Pre-tax Restructuring Costs	5.8	$ 2.7
Utilization and Foreign Exchange	(4.7)
Ending Accrued Restructuring Balance 3/31/2016	9.0
2016 Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/16	0.0
Pre-tax Restructuring Costs	5.4
Utilization and Foreign Exchange	(2.2)
Ending Accrued Restructuring Balance 3/31/2016	3.2
2016 Restructuring Actions | Severance
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/16	0.0
Pre-tax Restructuring Costs	3.2
Utilization and Foreign Exchange	(0.2)
Ending Accrued Restructuring Balance 3/31/2016	3.0
2016 Restructuring Actions | Asset write-downs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/16	0.0
Pre-tax Restructuring Costs	2.0
Utilization and Foreign Exchange	(2.0)
Ending Accrued Restructuring Balance 3/31/2016	0.0
2016 Restructuring Actions | Facility closure and other costs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/16	0.0
Pre-tax Restructuring Costs	0.2
Utilization and Foreign Exchange	0.0
Ending Accrued Restructuring Balance 3/31/2016	0.2
2015 and Prior Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/16	7.9
Pre-tax Restructuring Costs	0.4
Utilization and Foreign Exchange	(2.5)
Ending Accrued Restructuring Balance 3/31/2016	5.8
2015 and Prior Restructuring Actions | Severance
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/16	7.5
Pre-tax Restructuring Costs	0.2
Utilization and Foreign Exchange	(2.2)
Ending Accrued Restructuring Balance 3/31/2016	5.5
2015 and Prior Restructuring Actions | Asset write-downs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/16	0.0
Pre-tax Restructuring Costs	0.0
Utilization and Foreign Exchange	0.0
Ending Accrued Restructuring Balance 3/31/2016	0.0
2015 and Prior Restructuring Actions | Facility closure and other costs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/16	0.4
Pre-tax Restructuring Costs	0.2
Utilization and Foreign Exchange	(0.3)
Ending Accrued Restructuring Balance 3/31/2016	$ 0.3