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Employment Agreement, Severance Benefits, Special Payment, Qualifying Termination

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Percentage Of Accounts Receivable Balance From Two Just In Time Distributor

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Percentage of the Company's total revenue that is from one customer.

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Percentage of revenue two customer.

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The amount of square feet occupied.

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Sales of products to customers affiliated with Group Purchasing Organizations.

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Royalty revenue earned during the period from a third party resulting from a settlement agreement.

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Royalty Revenue, Number of Days Royalty Revenue is Adjusted Subsequent to Quarter End

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Severance plan participation agreements.

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Supplemental Unemployment Benefits, Severance Benefits, Required Notice of Resignation

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for contractual rent under lease arrangements.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Amount necessary to reduce net minimum lease payments to present value for capital leases.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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Amount of discretionary contributions made by an employer to a defined contribution plan.

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Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

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Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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Liability for amount due employees, in addition to wages and any other money that employers owe employees, when their employment ends through a layoff or other termination. For example, a company may provide involuntarily terminated employees with a lump sum payment equal to one week's salary for every year of employment.

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Commitments and Contingencies - Additional Information (Detail) shares in Millions				3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 27, 2017	Nov. 04, 2015 USD ($)	Jan. 03, 2014 USD ($)	Jul. 01, 2017 USD ($) distributor Agreement shares	Jul. 02, 2016 USD ($) distributor shares	Jul. 01, 2017 USD ($) ft² distributor Agreement shares	Jul. 02, 2016 USD ($) distributor shares	Dec. 31, 2016 USD ($) distributor	Jan. 31, 2014 participant
Contingencies And Commitments [Line Items]
Options to purchase of shares of common stock \| shares				0.1	1.6	0.1	1.4
Property Plant and Equipment, Occupied Square Feet \| ft²						16,830
Accrued rent expense				$ 1,400,000		$ 1,400,000		$ 700,000
Rental expense related to operating leases				1,600,000	$ 1,600,000	3,200,000	$ 3,100,000
Capital Leases, Future Minimum Payments, Interest Included in Payments				$ 100,000		$ 100,000
Company contribution percentage based on employee contribution of up to 3% of employee's compensation						3.00%
Severance plan participation agreements \| Agreement				6		6
Supplemental Unemployment Benefits, Severance Benefits, Required Notice of Resignation						6 months
Purchase Commitment, Remaining Minimum Amount Committed				$ 77,900,000		$ 77,900,000
Other Commitment				300,000		300,000
Bank balances				331,400,000		331,400,000
Bank balance covered by Federal Deposit Insurance Corporation limit				3,100,000		3,100,000
Royalty				$ 10,131,000	$ 8,029,000	$ 18,336,000	$ 15,906,000
Number of participants in the surfactant, positive pressure, and oxygenation randomized trial \| participant									2
Percentage Of Revenue One Customer				13.30%	14.80%	13.70%	15.40%
Percentage Of Revenue Two Customer				11.30%	12.70%	11.70%	11.90%
Number of days royalty revenue is adjusted subsequent to quarter end						60 days
Contractual Obligation				$ 27,161,000		$ 27,161,000
Sales [Member]
Contingencies And Commitments [Line Items]
Concentration Risk, Just-in-time Distributors \| distributor				2	2	2	2
Accounts Receivable [Member]
Contingencies And Commitments [Line Items]
Concentration Risk, Just-in-time Distributors \| distributor						2		2
Sales Revenue, Product Line [Member]
Contingencies And Commitments [Line Items]
Revenue Customer Concentration				$ 105,600,000	$ 93,300,000	$ 205,300,000	$ 185,300,000
Just in time distributor one [Member]
Contingencies And Commitments [Line Items]
Percentage Of Accounts Receivable Balance From Two Just In Time Distributor						8.30%		7.50%
Just in time distributor two [Member]
Contingencies And Commitments [Line Items]
Percentage Of Accounts Receivable Balance From Two Just In Time Distributor						5.00%		5.60%
Masimo vs. Physicians Healthsource, Inc.
Contingencies And Commitments [Line Items]
Loss contingency, damages sought			$ 500
Employment Contracts [Member]
Contingencies And Commitments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award		2.7
International
Contingencies And Commitments [Line Items]
Company's contribution to employee retirement savings plan				100,000	100,000	$ 200,000	200,000
United States
Contingencies And Commitments [Line Items]
Company's contribution to employee retirement savings plan				$ 600,000	$ 500,000	1,200,000	$ 1,100,000
Chief Executive Officer [Member]
Contingencies And Commitments [Line Items]
Employment Agreement, Severance Terms		$ 0
Employment Agreement, Severance Terms		10.00%
Employment Agreement, Severance Benefits, Special Payment, Qualifying Termination						$ 257,900,000
Chief Executive Officer [Member] \| Deferred Bonus [Member] \| Maximum
Contingencies And Commitments [Line Items]
Employment Agreement, Severance Terms		100.00%
Chief Executive Officer [Member] \| Deferred Bonus [Member] \| Subsequent Event [Member] \| Maximum
Contingencies And Commitments [Line Items]
Employment Agreement, Severance Terms	200.00%
Chief Executive Officer [Member] \| Employee Stock Option [Member]
Contingencies And Commitments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award		300000
Chief Executive Officer [Member] \| Restricted Stock Units (RSUs) [Member]
Contingencies And Commitments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award		2.7
Chief Executive Officer [Member] \| Restricted Stock Units (RSUs) [Member] \| Subsequent Event [Member]
Contingencies And Commitments [Line Items]
Employment Agreement, Severance Terms	50.00%
Chief Executive Officer [Member] \| Cash Distribution [Member] \| Subsequent Event [Member]
Contingencies And Commitments [Line Items]
Employment Agreement, Severance Terms	50.00%