Other Expense Development and Licensing Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2013
Development and licensing income [Line Items]
Development and licensing income	$ 0.9	$ 0.9	$ 10.6
Deferred income	34.9	33.4
SmartDose [Member]
Development and licensing income [Line Items]
Development and licensing income	$ 0.9	0.9	$ 1.5
Deferred income				$ 20.0
Other [Member]
Development and licensing income [Line Items]
Development and licensing income		$ 9.1