v2.4.0.8
Document and Entity Information (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 28, 2013
Jan. 31, 2014
Jun. 29, 2013
Document And Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 28, 2013    
Document Fiscal Year Focus 2013    
Document Fiscal Period Focus FY    
Trading Symbol MASI    
Entity Registrant Name MASIMO CORP    
Entity Central Index Key 0000937556    
Current Fiscal Year End Date --12-28    
Enitity Well-known Seasoned Issuer Yes    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Large Accelerated Filer    
Entity Common Stock, Shares Outstanding   56,705,362  
Entity Public Float     $ 789.9