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Commitments and Contingencies (Details) |  |  |  |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |
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Jun. 12, 2025 USD ($) | May 26, 2025 USD ($) | Feb. 28, 2025 USD ($) | Jan. 17, 2025 USD ($) | Nov. 13, 2024 USD ($) shares | Jan. 01, 2024 | Jun. 05, 2023 USD ($) | Jan. 30, 2023 patent | Oct. 13, 2020 patent | Nov. 04, 2015 USD ($) | Oct. 31, 2024 USD ($) | Feb. 28, 2023 patent | Jun. 28, 2025 USD ($) executiveOfficer distributor | Jun. 29, 2024 distributor | Jun. 28, 2025 USD ($) distributor executiveOfficer shares | Jun. 29, 2024 distributor shares | Dec. 28, 2024 USD ($) | Oct. 24, 2024 USD ($) | Oct. 20, 2022 complaint
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Severance plan participation agreements | executiveOfficer |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  | 3 |  |  |  |
Required notice of resignation |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 months |  |  |  |
Royalty obligation |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,000,000 |  | $ 5,000,000 |  |  |  |
License fee |  |  |  |  |  |  |  |  |  |  |  |  | 2,500,000 |  | 2,500,000 |  |  |  |
Change in control |  |  |  |  |  |  |  |  |  |  |  |  | 15,000,000 |  | 15,000,000 |  |  | $ 15,000,000 |
Royalty guarantees, commitments, additional, change in control |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000 |  | 2,000,000 |  |  | 2,000,000 |
License fee paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,500,000 |
Remaining commitment |  |  |  |  |  |  |  |  |  |  |  |  | 223,200,000 |  | 223,200,000 |  |  |  |
Other commitment |  |  |  |  |  |  |  |  |  |  |  |  | 4,200,000 |  | 4,200,000 |  |  |  |
Success fee payment period |  |  |  |  |  | 60 days |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, success fee, payments | $ 2,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Success fees outstanding |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  | 149,600,000 |  | 149,600,000 |  | $ 123,600,000 |  |
Bank balance covered by federal deposit insurance corporation limit |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,000,000.0 |  | $ 4,000,000.0 |  |  |  |
Ms Catherine Szyman |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual base salary |  |  |  | $ 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual target long-term incentive award |  |  |  | $ 7,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retirement policy attainment period |  |  |  | 60 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuous employment period |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum | Ms Catherine Szyman |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base salary percentage |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum | Ms Catherine Szyman |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base salary percentage |  |  |  | 200.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Masimo Vs. Apple Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents found infringed | patent |  |  |  |  |  |  |  | 1 |  |  |  | 2 |  |  |  |  |  |  |
Masimo Vs. Apple Inc | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asserted patents found valid | patent |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |
Asserted patents found invalid | patent |  |  |  |  |  |  |  |  | 9 |  |  |  |  |  |  |  |  |  |
Apple, Inc. Patent Infringement | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of complaints | complaint |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2
Loss contingency, damages awarded, value |  |  |  |  |  |  |  |  |  |  | $ 250 |  |  |  |  |  |  |  |
Brennan Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual base salary |  |  |  |  | $ 1,042,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discretionary bonus of target amount |  |  |  |  | 621,250 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discretionary bonus amount |  |  |  |  | $ 1,087,190 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Masimo V.S. Mr. Kiani | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, damages sought, value |  |  | $ 100,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Masimo v.s. Willow Laboratories | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, damages sought, value |  | $ 2,750,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributors | distributor |  |  |  |  |  |  |  |  |  |  |  |  | 1 | 1 | 1 | 1 |  |  |
GPO Members | Revenue Benchmark | Customer Concentration Risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  |  |  |  |  |  |  |  |  |  | 59.00% | 59.80% | 58.90% | 58.20% |  |  |
Just in time distributor one | Revenue Benchmark | Customer Concentration Risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  |  |  |  |  |  |  |  |  |  | 19.20% | 20.90% | 19.00% | 18.50% |  |  |
Customer One | Accounts Receivable | Customer Concentration Risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of accounts receivable balance |  |  |  |  |  |  |  |  |  |  |  |  | 19.90% |  | 19.90% |  | 12.20% |  |
Customer Two | Accounts Receivable | Customer Concentration Risk |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of accounts receivable balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11.90% |  |
Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted (in units) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 |  |  |  |
Restricted Stock Units (RSUs) | Brennan Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted (in units) | shares |  |  |  |  | 8,916 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chief Executive Officer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Severance payment period |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |
Equity awards |  |  |  |  |  |  |  |  |  | $ 2,700,000 |  |  |  |  |  |  |  |  |
Cash payment |  |  |  |  |  |  |  |  |  | $ 35,000,000 |  |  |  |  |  |  |  |  |
Qualifying termination |  |  |  |  |  |  | $ 479,700,000 |  |  |  |  |  |  |  |  |  |  |  |
Chief Executive Officer | Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingencies And Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted (in units) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,700,000 | 2,700,000 |  |  |

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