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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