Prepaids and Other Current Assets Related Party Text (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Prepaid Expense and Other Assets, Current [Abstract]
Pfizer MSA Product Costs	$ 18.1	$ 14.7
ICU Medical MSA Revenue	$ 17.2	$ 12.5