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Preferred Stock (Additional Information) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2023
Nov. 03, 2023
Dec. 31, 2022
Class of Stock [Line Items]      
Preferred stock, shares issued 0   0
Preferred Stock, Shares Authorized 10,000,000   0
Preferred stock, par value $ 0.001   $ 0.001
Preferred Stock, Shares Outstanding 0   0
Preferred Stock, Convertible, Conversion Ratio 4.9688%    
Preferred Stock [Member]      
Class of Stock [Line Items]      
Percentage of outstanding shares of Preferred Stock 66.00%    
Preferred Stock, Dividend Rate, Percentage 8.00%    
Preferred Stock, Convertible, Conversion Ratio 4.9688%    
Preferred Stock [Member] | Minimum [Member]      
Class of Stock [Line Items]      
Sale of Stock, Price Per Share $ 111.9    
Proceeds from Issuance Initial Public Offering $ 75,000    
Percentage of outstanding shares of Preferred Stock 66.00%    
Series A Convertible Preferred Stock [Member]      
Class of Stock [Line Items]      
Sale of Stock, Price Per Share $ 45.08    
Preferred Stock, Shares Outstanding 0   2,029,666
Preferred Stock, Convertible, Conversion Price $ 45.08    
Series B Preferred Stock      
Class of Stock [Line Items]      
Preferred Stock, Shares Outstanding 0   1,104,178
Series B-1 Preferred Stock [Member]      
Class of Stock [Line Items]      
Sale of Stock, Price Per Share $ 52.53    
Preferred Stock, Convertible, Conversion Price 52.53    
Series B-2 Preferred Stock [Member]      
Class of Stock [Line Items]      
Sale of Stock, Price Per Share 55.95    
Preferred Stock, Convertible, Conversion Price 55.95    
Series Seed Preferred Stock [Member]      
Class of Stock [Line Items]      
Sale of Stock, Price Per Share $ 20.13    
Preferred Stock, Shares Outstanding 0   684,739
Preferred Stock, Convertible, Conversion Price $ 20.13    
Series Seed-3 Preferred Stock [Member]      
Class of Stock [Line Items]      
Sale of Stock, Price Per Share 26.16    
Preferred Stock, Convertible, Conversion Price $ 26.16    
Legacy Korro [Member]      
Class of Stock [Line Items]      
Preferred stock, shares issued     4,042,000
Preferred Stock, Shares Authorized     4,855,239
Preferred Stock, Shares Outstanding     4,042,000
Legacy Korro [Member] | Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred stock, shares issued     0
Preferred Stock, Shares Authorized     10,000,000
Preferred stock, par value     $ 0.001
Preferred Stock, Shares Outstanding     0
Preferred Stock, Convertible, Conversion Ratio   4.9688%  
Legacy Korro [Member] | Series A Convertible Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred stock, shares issued     2,029,666
Preferred Stock, Shares Authorized     2,029,666
Preferred Stock, Shares Outstanding     2,029,666
Legacy Korro [Member] | Series B-1 Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred stock, shares issued     1,104,178
Preferred Stock, Shares Authorized     1,104,178
Preferred Stock, Shares Outstanding     1,104,178
Legacy Korro [Member] | Series B-2 Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred stock, shares issued     223,417
Preferred Stock, Shares Authorized     1,036,656
Preferred Stock, Shares Outstanding     223,417
Legacy Korro [Member] | Series Seed Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred stock, shares issued     684,739
Preferred Stock, Shares Authorized     684,739
Preferred Stock, Shares Outstanding     684,739