Restructuring Costs and Other - Reserve (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/21			$ 10.6
Pre-tax Restructuring Costs	$ 1.5	$ 5.7	2.1	$ 9.2
Utilization and Foreign Exchange			(5.6)
Ending Accrued Restructuring Balance 6/30/2021	7.1		7.1
2021 Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/21			0.0
Pre-tax Restructuring Costs			0.3
Utilization and Foreign Exchange			(0.2)
Ending Accrued Restructuring Balance 6/30/2021	0.1		0.1
2021 Restructuring Actions | Severance
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/21			0.0
Pre-tax Restructuring Costs			0.3
Utilization and Foreign Exchange			(0.2)
Ending Accrued Restructuring Balance 6/30/2021	0.1		0.1
2021 Restructuring Actions | Asset write-downs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/21			0.0
Pre-tax Restructuring Costs			0.0
Utilization and Foreign Exchange			0.0
Ending Accrued Restructuring Balance 6/30/2021	0.0		0.0
2021 Restructuring Actions | Facility closure and other costs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/21			0.0
Pre-tax Restructuring Costs			0.0
Utilization and Foreign Exchange			0.0
Ending Accrued Restructuring Balance 6/30/2021	0.0		0.0
2020 and Prior Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/21			10.6
Pre-tax Restructuring Costs			1.8
Utilization and Foreign Exchange			(5.4)
Ending Accrued Restructuring Balance 6/30/2021	7.0		7.0
2020 and Prior Restructuring Actions | Severance
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/21			8.9
Pre-tax Restructuring Costs			0.2
Utilization and Foreign Exchange			(3.5)
Ending Accrued Restructuring Balance 6/30/2021	5.6		5.6
2020 and Prior Restructuring Actions | Asset write-downs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/21			0.0
Pre-tax Restructuring Costs			0.0
Utilization and Foreign Exchange			0.0
Ending Accrued Restructuring Balance 6/30/2021	0.0		0.0
2020 and Prior Restructuring Actions | Facility closure and other costs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/21			1.7
Pre-tax Restructuring Costs			1.6
Utilization and Foreign Exchange			(1.9)
Ending Accrued Restructuring Balance 6/30/2021	$ 1.4		$ 1.4