Other Expense Other (Income) Development and Licensing Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Jun. 30, 2013
Development and licensing income [Line Items]
Development and licensing income	$ 0.2	$ 0.4	$ 0.4	$ 0.8
Deferred income	24.2		24.2		$ 33.6
SmartDose [Member]
Development and licensing income [Line Items]
Development and licensing income	$ 0.2	$ 0.4	$ 0.4	$ 0.8
Deferred income						$ 20.0