Prepaids and Other Current Assets Related Party Text (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Prepaid Expense and Other Assets, Current [Abstract]
Pfizer MSA Product Costs	$ 21.7	$ 16.2	$ 59.3	$ 51.9
ICU Medical MSA Revenue	$ 17.5	$ 16.1	$ 57.4	$ 55.0