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Commitments and Contingencies - Additional Information - (Detail)
$ in Millions
1 Months Ended 12 Months Ended
Sep. 07, 2023
USD ($)
Jan. 30, 2023
patent
Apr. 21, 2021
patent
Feb. 28, 2023
patent
Jul. 31, 2017
Dec. 30, 2023
USD ($)
customer
agreement
distributor
Dec. 31, 2022
customer
distributor
Jan. 01, 2022
distributor
Oct. 20, 2022
complaint
Contingencies And Commitments [Line Items]                  
Severance plan participation agreements | agreement           6      
Period for notice of resignation           6 months      
Current annual minimum royalty obligation           $ 5.0      
License fee           2.5      
Royalty guarantees, commitments, change in control           15.0      
Royalty guarantees, commitments, additional, change in control           2.0      
Remaining amount committed           274.5      
Other commitment           4.3      
Bank balances           163.0      
Bank balance covered by Federal Deposit Insurance Corporation limit           $ 7.6      
Masimo Vs. Apple Inc                  
Contingencies And Commitments [Line Items]                  
Number of patents found infringed | patent   2   2          
Masimo Vs. Apple Inc | Pending Litigation                  
Contingencies And Commitments [Line Items]                  
Patents found infringed upon | patent     3            
Patents found not infringed upon | patent     9            
Apple, Inc. Patent Infringement | Pending Litigation                  
Contingencies And Commitments [Line Items]                  
Number of complaints | complaint                 2
Masimo Vs. Politan Capital Management LP and Politan Capital NY LLC | Pending Litigation                  
Contingencies And Commitments [Line Items]                  
Attorney fees $ 18.0                
Sales                  
Contingencies And Commitments [Line Items]                  
Number of just-in-time distributors | distributor           1 1 1  
Accounts Receivable                  
Contingencies And Commitments [Line Items]                  
Concentration risk accounts receivable customer | customer           1 1    
GPO Members | Revenue Benchmark | Customer Concentration Risk                  
Contingencies And Commitments [Line Items]                  
Concentration risk, percentage           53.20% 53.80% 51.90%  
Just in time distributor one | Revenue Benchmark | Customer Concentration Risk                  
Contingencies And Commitments [Line Items]                  
Concentration risk, percentage           18.10% 10.10%    
Just in time distributor two | Revenue Benchmark | Customer Concentration Risk                  
Contingencies And Commitments [Line Items]                  
Concentration risk, percentage               14.60%  
Customer One | Accounts Receivable | Customer Concentration Risk                  
Contingencies And Commitments [Line Items]                  
Percentage of accounts receivable balance           6.40% 9.10%    
Chief Executive Officer                  
Contingencies And Commitments [Line Items]                  
Qualifying termination           $ 479.7      
Chief Executive Officer | Cash Distribution                  
Contingencies And Commitments [Line Items]                  
Severance terms         50.00%        
Chief Executive Officer | Restricted Stock Units (RSUs)                  
Contingencies And Commitments [Line Items]                  
Severance terms         50.00%