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Commitments and Contingencies (Details)									1 Months Ended		12 Months Ended
Commitments and Contingencies (Details)	Jun. 12, 2025 USD ($)	May 26, 2025 USD ($)	Jan. 17, 2025 USD ($)	Nov. 13, 2024 USD ($) shares	Jun. 05, 2023 USD ($)	Jan. 30, 2023 patent	Oct. 13, 2020 patent	Nov. 04, 2015 USD ($)	Nov. 30, 2025 USD ($)	Oct. 31, 2024 USD ($)	Jan. 03, 2026 USD ($) distributor executiveOfficer customer shares	Dec. 28, 2024 USD ($) distributor customer shares	Dec. 30, 2023 distributor shares	Oct. 24, 2024 USD ($)	Oct. 20, 2022 complaint
Contingencies And Commitments [Line Items]
Severance plan participation agreements \| executiveOfficer											3
Period for notice of resignation											6 months
License fee paid														$ 2,500,000
Royalty guarantees, commitments, change in control											$ 15,000,000.0			15,000,000.0
Royalty guarantees, commitments, additional, change in control														$ 2,000,000.0
Remaining amount committed											258,400,000
Other commitment											4,100,000
Loss contingency, success fee, payments	$ 2,800,000
Success fees outstanding											0
Cash and cash equivalents											152,300,000	$ 123,600,000
Bank balance covered by federal deposit insurance corporation limit											$ 4,200,000
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%
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 Vs. Apple Inc
Contingencies And Commitments [Line Items]
Number of patents found infringed \| patent						1
Masimo Vs. Apple Inc \| Pending Litigation
Contingencies And Commitments [Line Items]
Patents found infringed upon \| patent							3
Patents found not infringed upon \| patent							9
Loss contingency, damages awarded, value									$ 634,000,000
Apple, Inc. Patent Infringement \| Pending Litigation
Contingencies And Commitments [Line Items]
Loss contingency, damages awarded, value										$ 250
Number of complaints \| complaint															2
Masimo v.s. Willow Laboratories \| Pending Litigation
Contingencies And Commitments [Line Items]
Loss contingency, damages sought, value		$ 6,100,000
Sales
Contingencies And Commitments [Line Items]
Number of just-in-time distributors \| distributor											1	1	1
GPO Members \| Revenue Benchmark \| Customer Concentration Risk
Contingencies And Commitments [Line Items]
Concentration risk, percentage											57.20%	56.90%	53.20%
Just in time distributor one \| Revenue Benchmark \| Customer Concentration Risk
Contingencies And Commitments [Line Items]
Concentration risk, percentage											18.80%	18.50%	18.10%
Customer Two \| Accounts Receivable
Contingencies And Commitments [Line Items]
Concentration risk accounts receivable customer \| customer											2	2
Customer Two \| Accounts Receivable \| Customer Concentration Risk
Contingencies And Commitments [Line Items]
Percentage of accounts receivable balance											10.10%	11.90%
Customer One \| Accounts Receivable \| Customer Concentration Risk
Contingencies And Commitments [Line Items]
Percentage of accounts receivable balance											26.50%	12.20%
Restricted Stock Units (RSUs)
Contingencies And Commitments [Line Items]
Granted (in shares) \| shares											300,000	200,000	500,000
Restricted Stock Units (RSUs) \| Brennan Agreement
Contingencies And Commitments [Line Items]
Granted (in shares) \| 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