DEI Document	6 Months Ended
	Jun. 30, 2019 shares
Document And Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2019
Document Transition Report	false
Entity File Number	001-34634
Entity Registrant Name	ICU MEDICAL INC/DE
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	33-0022692
Entity Address, Address Line One	951 Calle Amanecer
Entity Address, City or Town	San Clemente
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92673
City Area Code	949
Local Phone Number	366-2183
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common stock, par value $0.10 per share
Trading Symbol	ICUI
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding	20,665,818
Entity Central Index Key	0000883984
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2