Prepaids and Other Current Assets Related Party (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Due from Related Parties, Current	$ 98,807	$ 0
Pfizer MSA Product Costs	72,400
ICU Medical MSA Revenue	70,200
Accounts Receivable [Member]
Related Party Transaction [Line Items]
Due from Related Parties, Current	36,425	0
Prepaid Expenses and Other Current Assets [Member]
Related Party Transaction [Line Items]
Due from Related Parties, Current	$ 62,382	$ 0
Hospira [Member]
Related Party Transaction [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	3,200