v2.4.0.6
Document and Entity Information
9 Months Ended
Sep. 29, 2012
Entity Information [Line Items]  
Document Type 10-Q
Amendment Flag false
Document Period End Date Sep. 29, 2012
Document Fiscal Year Focus 2012
Document Fiscal Period Focus Q3
Trading Symbol MASI
Entity Registrant Name MASIMO CORP
Entity Central Index Key 0000937556
Current Fiscal Year End Date --12-29
Entity Filer Category Large Accelerated Filer
Entity Common Stock, Shares Outstanding 57,232,216