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Basis of Presentation and Significant Accounting Policies - Additional Information (Details) |  | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Aug. 04, 2025 USD ($) $ / shares | Sep. 26, 2025 USD ($) | Jun. 27, 2025 | Sep. 26, 2025 USD ($) Property
Organization And Description Of Business And Accounting Policies [Line Items] |  |  |  |
Recognized costs of severance and reduction in workforce |  | $ 18,000 |  | $ 12,471,000
Consulting expenses |  | 8,000 |  | 874,000
Impairment on real property right-of-use assets |  | 0 |  | $ 4,083,000
Number of leased properties looking for subleases | Property |  |  |  | 2
Restructuring, impairment and related charges |  | 26,000 |  | $ 27,938,000
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] |  |  |  | srt:ChiefExecutiveOfficerMember
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 consolidated net loss.
Leasehold Improvements |  |  |  |
Organization And Description Of Business And Accounting Policies [Line Items] |  |  |  |
Recognized cost |  | 0 |  | $ 7,759,000
Internally Developed Software |  |  |  |
Organization And Description Of Business And Accounting Policies [Line Items] |  |  |  |
Impairment of internally developed software |  | $ 0 |  | $ 2,751,000
STAAR Surgical Company |  |  |  |
Organization And Description Of Business And Accounting Policies [Line Items] |  |  |  |
Merger termination fee | $ 72,400,000 |  |  |
Alcon Research, LLC |  |  |  |
Organization And Description Of Business And Accounting Policies [Line Items] |  |  |  |
Business acquisition, share cancellation and conversion price in cash | $ / shares | $ 28 |  |  |
Merger termination fee | $ 43,400,000 |  |  |
Maximum | Consolidated Accounts Payable | Vendor Concentration Risk |  |  |  |
Organization And Description Of Business And Accounting Policies [Line Items] |  |  |  |
Concentration risk, aggregate of percentage |  | 10.00% | 10.00% |

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