XML 11 R1.htm IDEA: XBRL DOCUMENT v3.19.2
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2019
Jul. 26, 2019
Document and Entity Information [Abstract]    
Title of 12(b) Security Common Stock, $0.001 par value  
Entity Incorporation, State or Country Code DE  
Document Transition Report false  
Document Quarterly Report true  
Entity Registrant Name OMNICELL, INC  
Entity Address, Address Line One 590 East Middlefield Road  
Entity Address, City or Town Mountain View  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94043  
City Area Code 650  
Local Phone Number 251-6100  
Entity Shell Company false  
Entity Central Index Key 0000926326  
Document Type 10-Q  
Document Period End Date Jun. 30, 2019  
Entity File Number 000-33043  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   41,655,702
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Entity Emerging Growth Company false  
Entity Small Business false  
Entity Tax Identification Number 94-3166458  
Security Exchange Name NASDAQ  
Trading Symbol OMCL  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes