XML 11 R1.htm IDEA: XBRL DOCUMENT v3.25.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2025
May 02, 2025
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Mar. 31, 2025  
Document Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q1  
Entity File Number 001-39513  
Entity Registrant Name Outset Medical, Inc.  
Entity Central Index Key 0001484612  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 20-0514392  
Entity Address, Address Line One 3052 Orchard Dr.  
Entity Address, City or Town San Jose  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 95134  
City Area Code 669  
Local Phone Number 231-8200  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol OM  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   17,722,310