Restructuring and Repositioning Expenses, Asset Impairments - Restructuring Liability (Details) - USD ($) $ in Millions	3 Months Ended		8 Months Ended	27 Months Ended	39 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 2020
Restructuring Reserve [Roll Forward]
Beginning balance	$ 2.7
Expense	2.1
Payments	(1.3)
Impact of foreign currency and other	(0.2)
Ending balance	3.3		$ 3.3	$ 3.3	$ 3.3
Asset impairments	1.0	$ 0.2
2019 Plan | Severance and other employee costs
Restructuring Reserve [Roll Forward]
Beginning balance	0.2
Expense	0.2
Payments	(0.1)
Impact of foreign currency and other	0.0
Ending balance	0.3		0.3	0.3	0.3
2019 Plan | Other Costs
Restructuring Reserve [Roll Forward]
Beginning balance	0.0
Expense	0.2
Payments	0.0
Impact of foreign currency and other	0.0
Ending balance	0.2		0.2	0.2	0.2
2019 Phase 2 Plan
Restructuring Reserve [Roll Forward]
Payments	(1.6)		(2.6)
2019 Phase 2 Plan | Severance and other employee costs
Restructuring Reserve [Roll Forward]
Beginning balance	0.9
Expense	1.7
Payments	(0.6)
Impact of foreign currency and other
Ending balance	2.0		2.0	2.0	2.0
2019 Phase 2 Plan | Capital expenditures
Restructuring Reserve [Roll Forward]
Payments			(0.1)
2018 Plan
Restructuring Reserve [Roll Forward]
Payments	(0.1)			(11.6)
2018 Plan | Severance and other employee costs
Restructuring Reserve [Roll Forward]
Beginning balance	1.0
Expense	0.0
Payments	(0.2)
Impact of foreign currency and other	(0.1)
Ending balance	0.7		0.7	0.7	0.7
2018 Plan | Other Costs
Restructuring Reserve [Roll Forward]
Beginning balance	0.4
Expense	0.0
Payments	(0.3)
Impact of foreign currency and other	(0.1)
Ending balance	0.0		0.0	0.0	0.0
2018 Plan | Capital expenditures
Restructuring Reserve [Roll Forward]
Payments				(0.9)
2017 Plan
Restructuring Reserve [Roll Forward]
Payments	(0.7)				(21.5)
2017 Plan | Severance and other employee costs
Restructuring Reserve [Roll Forward]
Beginning balance	0.2
Expense	0.0
Payments	(0.1)
Impact of foreign currency and other	0.0
Ending balance	$ 0.1		$ 0.1	$ 0.1	0.1
2017 Plan | Capital expenditures
Restructuring Reserve [Roll Forward]
Payments					$ (11.9)