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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Commitments and Contingencies - Narrative (Detail) $ in Millions		1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 21, 2021 patent	Jul. 31, 2017	Jul. 01, 2023 USD ($) executiveOfficer customer distributor	Jul. 02, 2022 distributor	Jul. 01, 2023 USD ($) executiveOfficer distributor customer	Jul. 02, 2022 distributor	Dec. 31, 2022 customer	Oct. 20, 2022 complaint
Contingencies And Commitments [Line Items]
Severance plan participation agreements \| executiveOfficer			5		5
Required notice of resignation					6 months
Royalty obligation			$ 5.0		$ 5.0
License fee			2.5		2.5
Change in control			15.0		15.0
Royalty guarantees, commitments, additional, change in control			2.0		2.0
Remaining commitment			360.6		360.6
Other commitment			4.3		4.3
Bank balances			150.7		150.7
Bank balance covered by federal deposit insurance corporation limit			$ 7.9		$ 7.9
Percentage of revenue one customer			12.00%	10.60%	10.30%	11.60%
Concentration risk, AR balance one customer \| customer			1		1		1
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
Sales
Contingencies And Commitments [Line Items]
Distributors \| distributor			1	1	1	1
Accounts Receivable
Contingencies And Commitments [Line Items]
Percentage of accounts receivable balance			8.90%		8.90%		9.10%
Sales Revenue, Product Line
Contingencies And Commitments [Line Items]
Percentage of revenue - customer concentration			58.50%	49.60%	54.10%	52.30%
Chief Executive Officer
Contingencies And Commitments [Line Items]
Severance payment period		3 years
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%