Prepaids and Other Current Assets Related Party Text (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Prepaid Expense and Other Assets, Current [Abstract]
Pfizer MSA Product Costs	$ 19.5	$ 21.0	$ 37.6	$ 35.7
ICU Medical MSA Revenue	$ 22.6	$ 26.3	$ 39.8	$ 38.8