v3.26.1
Employee Benefits (Details)
$ in Millions
3 Months Ended
Apr. 04, 2026
USD ($)
plan
Mar. 29, 2025
USD ($)
Defined Contribution Plan Disclosure [Line Items]    
Defined contribution plan, number of plans | plan 1  
Masimo Retirement Savings Plan    
Defined Contribution Plan Disclosure [Line Items]    
Percent of employees' gross pay 100.00%  
Percent of match 3.00%  
Company's contribution to employee retirement savings plan $ 1.1 $ 1.0
Masimo Retirement Savings Plan | Foreign Plan    
Defined Contribution Plan Disclosure [Line Items]    
Company's contribution to employee retirement savings plan $ 0.6 $ 0.6