Condensed Consolidated Balance Sheets (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Entity Registrant Name	ICU MEDICAL INC/DE
CURRENT ASSETS:
Cash and cash equivalents	$ 121,560	$ 99,590
Investment securities	71,931	60,395	[1]
Cash, cash equivalents and investment securities	193,491	159,985	[1]
Accounts receivable, net of allowance for doubtful accounts of $1,056 at June 30, 2012 and $1,293 at December 31, 2011	43,839	43,571	[1]
Inventories	36,535	40,423	[1]
Prepaid income taxes	9,257	5,589	[1]
Prepaid expenses and other current assets	5,849	6,759	[1]
Deferred income taxes	4,467	4,081	[1]
Total current assets	293,438	260,408	[1]
PROPERTY AND EQUIPMENT, net	82,175	83,048	[1]
GOODWILL	1,478	1,478	[1]
INTANGIBLE ASSETS, net	10,749	11,419	[1]
DEFERRED INCOME TAXES	4,751	4,759	[1]
TOTAL ASSETS	392,591	361,112	[1]
CURRENT LIABILITIES:
Accounts payable	12,277	13,251	[1]
Accrued liabilities	17,548	16,059	[1]
Total current liabilities	29,825	29,310	[1]
COMMITMENTS AND CONTINGENCIES
DEFERRED INCOME TAXES	7,160	7,144	[1]
INCOME TAX LIABILITY	4,081	4,081	[1]
STOCKHOLDERS' EQUITY:
Convertible preferred stock, $1.00 par value Authorized-500 shares; Issued and outstanding - none	0	0	[1]
Common stock, $0.10 par value - Authorized-80,000 shares; Issued 14,855 shares at June 30, 2012 and December 31, 2011, outstanding 14,117 shares at June 30, 2012 and 13,871 shares at December 31, 2011	1,486	1,486	[1]
Additional paid-in capital	60,200	56,796	[1]
Treasury stock, at cost - 738 shares at June 30, 2012 and 984 shares at December 31, 2011	(22,537)	(35,348)	[1]
Retained earnings	317,627	300,877	[1]
Accumulated other comprehensive income (loss)	(5,251)	(3,234)	[1]
Total stockholders' equity	351,525	320,577	[1]
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 392,591	$ 361,112	[1]
Entity Central Index Key	0000883984
Document Type	10-Q
Document Period End Date	Jun. 30, 2012
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding	14,268,055
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2

[1] December 31, 2011 balances were derived from audited consolidated financial statements.