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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-42

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-21

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-20

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-18

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-20

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Disaggregation of Sales, Geographic Sales and Product Sales - Additional Information (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 27, 2024 Country	Sep. 29, 2023	Sep. 27, 2024 Country Segment	Sep. 29, 2023	Dec. 29, 2023
Geographic and Product Data [Line Items]
Number of countries in which Company operates \| Country	75		75
Number of operating segments \| Segment			1
Sales Revenue, Net \| Geographic Concentration Risk [Member] \| Other than China and Japan [Member] \| Maximum
Geographic and Product Data [Line Items]
Concentration risk, percentage			10.00%
Sales Revenue, Net \| Geographic Concentration Risk [Member] \| China [Member]
Geographic and Product Data [Line Items]
Concentration risk, percentage	59.00%	60.00%	58.00%	59.00%
Sales Revenue, Net \| Product Concentration Risk [Member] \| Ophthalmic Surgical Product [Member]
Geographic and Product Data [Line Items]
Concentration risk, percentage			100.00%
Accounts Receivable [Member] \| Geographic Concentration Risk [Member] \| China [Member]
Geographic and Product Data [Line Items]
Concentration risk, percentage			69.00%		70.00%