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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

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- Definition

Indicates title and position of individual or name of group identified as chief operating decision maker (CODM) for segment reporting.

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Description of how chief operating decision maker (CODM) uses reported segment profit (loss) measure to assess performance and allocate resource.

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Basis of Presentation and Significant Accounting Policies - Additional Information (Details) - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
	Oct. 02, 2026	Oct. 02, 2026	Jan. 02, 2026
Organization And Description Of Business And Accounting Policies [Line Items]
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]		srt:ExecutiveOfficerMember
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description		The CODM assesses performance by comparing actual results to forecasts and decides how to allocate resources, i.e., headcount and compensation, based on net income or on operating results, if a net loss.
Alcon Research, LLC
Organization And Description Of Business And Accounting Policies [Line Items]
Professional fees and expenses		$ 6,743,000
Vendor Concentration Risk \| Vendor \| Consolidated Purchases
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration risk, aggregate of percentage	10.00%
Vendor Concentration Risk \| Two Vendors \| Consolidated Accounts Payable
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration risk, aggregate of percentage		34.00%	30.00%