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Stock-Based Compensation Expense - Additional Information (Details) - USD ($) $ in Thousands |  | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 28, 2021 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2021 | Jan. 01, 2024 | Jan. 01, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Common stock shares issued |  | 39,617,334 |  | 36,139,513 |  |  |
Shares of common stock reserved |  | 8,385,548 |  | 8,364,218 |  |  |
Stock-Based Compensation, Terms of Award |  | Stock option awards are granted with an exercise price of no less than 100% of estimated fair market value on the date of grant. Time based awards generally vest over four years as follows, subject to the optionee’s continuing service: (i) one fourth of the total number of shares vest and become exercisable on the one-year anniversary and then 1/48th of the total number of shares subject to the option vest and become exercisable on each monthly anniversary thereafter for the remaining three years, or (ii) 1/48th of the total number of shares subject to the option vest and become exercisable each month over four years. |  |  |  |  |
Total unrecognized expense related to unvested stock options |  | $ 15,300 |  | $ 8,300 |  |  |
Proceeds from issuance of common stock |  | 13,993 | $ 3,896 |  |  |  |
The Calhoun Vision, Inc. 2015 Equity Incentive Plan and the Calhoun Vision, Inc. 2006 Stock Plan [Member] |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Intrinsic Value of Vested Options |  | 170,100 |  | 121,300 |  |  |
Intrinsic Value of Outstanding Options |  | 257,200 |  | $ 185,000 |  |  |
Total Cash Received from the Exercise of Stock Options |  | 13,300 | 3,400 |  |  |  |
Total Fair Value Less Strike Price of Stock Options Exercised |  | $ 50,500 | $ 5,200 |  |  |  |
Number of Options, Unvested |  | 2,620,861 |  | 2,539,445 |  |  |
Total unrecognized expense related to unvested stock options |  | $ 44,100 |  | $ 22,700 |  |  |
Weighted average period for recognition of expenses |  | 2 years 6 months |  | 2 years 4 months 24 days |  |  |
2021 Equity Incentive Plan |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Common stock available for issuance | 2,420,135 |  |  |  |  |  |
Common stock shares issued | 7,260,406 |  |  |  |  |  |
Shares of common stock reserved |  | 951,817 |  |  |  | 1,445,580 | 1,130,735
Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Outstanding Stock Maximum | 4.00% |  |  |  |  |  |
Weighted average period for recognition of expenses |  | 2 years 4 months 24 days |  | 2 years 3 months 18 days |  |  |
2021 Equity Incentive Plan | Maximum [Member] |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Shares of common stock reserved | 4,569,530 |  |  |  |  |  |
2021 Employee Stock Purchase Plan |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Common stock shares issued |  | 538,942 |  |  |  |  |
Shares of common stock reserved | 1,452,081 |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Outstanding Stock Maximum | 1.00% |  |  |  |  |  |
2021 Employee Stock Purchase Plan | Maximum [Member] |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Outstanding Stock Maximum | 85.00% |  |  |  |  |  |
Employee Stock Option |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Stock-Based Compensation, Vesting period |  |  |  |  | 4 years |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |  |  |
Shares of common stock reserved |  | 649,988 |  | 650,357 |  |  |
Number of Options, Unvested |  | 649,988 |  |  |  |  |

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