Other Expense (Income) - Narrative (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Jul. 31, 2020	Feb. 28, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2013
Summary of Investment Holdings [Line Items]
Total restructuring and related charges			$ 4.6	$ 4.9	$ 9.1
Severance Costs			4.6	2.6	3.1
Asset-related charges			0.0	0.3	2.2
Other charges			0.0	2.0	3.8
Argentina currency devaluation			0.0	1.0	1.1
Tax recovery			0.0	4.7	0.0
Development and licensing income			0.9	0.9	0.9
Deferred income			57.1	34.9
SmartDose
Summary of Investment Holdings [Line Items]
Development and licensing income			0.9	0.9	0.9
Deferred income						$ 20.0
2020 Restructuring Plan
Summary of Investment Holdings [Line Items]
Restructuring and related activities, period of implementation	24 months
Restructuring and related cost, cumulative cost incurred			4.6
Restructuring and severance related charges			4.6
2018 Restructuring Plan
Summary of Investment Holdings [Line Items]
Restructuring and related activities, period of implementation		24 months
Restructuring and related cost, expected cost		$ 16.0
Restructuring and related cost, cumulative cost incurred			$ 13.7
Total restructuring and related charges				4.9	8.8
Severance Costs				2.6	3.1
Asset-related charges				0.3	2.2
Other charges				2.0	3.5
Argentina currency devaluation				1.0	1.1
Restructuring and severance related charges				$ 4.9	$ 0.3
Minimum | 2020 Restructuring Plan
Summary of Investment Holdings [Line Items]
Restructuring and related cost, expected cost	$ 15.0
Effect on future earnings, amount	3.5
Maximum | 2020 Restructuring Plan
Summary of Investment Holdings [Line Items]
Restructuring and related cost, expected cost	17.0
Effect on future earnings, amount	$ 4.5