v2.4.0.8
Document and Entity Information (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Mar. 07, 2014
Jun. 30, 2013
Document Information [Line Items]      
Entity Registrant Name OMNICELL, Inc    
Entity Central Index Key 0000926326    
Document Type 10-K    
Document Period End Date Dec. 31, 2013    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 690.5
Entity Common Stock, Shares Outstanding   36,362,249  
Document Fiscal Year Focus 2013    
Document Fiscal Period Focus FY