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v3.19.1

Disaggregation of Revenues, Geographic Sales and Product Sales - Additional Information (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 29, 2019 Country Segment | Mar. 30, 2018 | Dec. 28, 2018
Geographic and Product Data [Line Items] |  |  |
Number of countries in which Company operates | Country | 75 |  |
Number of operating segments | Segment | 1 |  |
Sales Revenue, Net | Customer One [Member] |  |  |
Geographic and Product Data [Line Items] |  |  |
Concentration risk, percentage | 36.00% | 29.00% |
Sales Revenue, Net | Geographic Concentration Risk [Member] | Other than China, Japan, Korea [Member] | Maximum |  |  |
Geographic and Product Data [Line Items] |  |  |
Concentration risk, percentage | 10.00% |  |
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] | Customer One [Member] |  |  |
Geographic and Product Data [Line Items] |  |  |
Concentration risk, percentage | 37.00% |  | 36.00%

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