Restructuring Costs and Other - Reserve (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20	$ 17.4
Pre-tax Restructuring Costs	3.5	$ 3.0
Utilization and Foreign Exchange	(7.3)
Ending Accrued Restructuring Balance 3/31/2020	13.6
2020 Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20	0.0
Pre-tax Restructuring Costs	1.2
Utilization and Foreign Exchange	(0.4)
Ending Accrued Restructuring Balance 3/31/2020	0.8
2020 Restructuring Actions | Severance
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20	0.0
Pre-tax Restructuring Costs	1.1
Utilization and Foreign Exchange	(0.3)
Ending Accrued Restructuring Balance 3/31/2020	0.8
2020 Restructuring Actions | Asset write-downs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20	0.0
Pre-tax Restructuring Costs	0.0
Utilization and Foreign Exchange	0.0
Ending Accrued Restructuring Balance 3/31/2020	0.0
2020 Restructuring Actions | Facility closure and other costs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20	0.0
Pre-tax Restructuring Costs	0.1
Utilization and Foreign Exchange	(0.1)
Ending Accrued Restructuring Balance 3/31/2020	0.0
2019 and Prior Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20	17.4
Pre-tax Restructuring Costs	2.3
Utilization and Foreign Exchange	(6.9)
Ending Accrued Restructuring Balance 3/31/2020	12.8
2019 and Prior Restructuring Actions | Severance
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20	11.3
Pre-tax Restructuring Costs	(0.6)
Utilization and Foreign Exchange	(4.0)
Ending Accrued Restructuring Balance 3/31/2020	6.7
2019 and Prior Restructuring Actions | Asset write-downs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20	0.0
Pre-tax Restructuring Costs	0.1
Utilization and Foreign Exchange	(0.1)
Ending Accrued Restructuring Balance 3/31/2020	0.0
2019 and Prior Restructuring Actions | Facility closure and other costs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20	6.1
Pre-tax Restructuring Costs	2.8
Utilization and Foreign Exchange	(2.8)
Ending Accrued Restructuring Balance 3/31/2020	$ 6.1