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Common Stock - Equity Offering (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 99 Months Ended
Jan. 08, 2024
Jan. 04, 2024
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2024
Mar. 04, 2024
Mar. 03, 2024
Dec. 31, 2023
Class of Stock [Line Items]                
Proceeds from issuance of private placement         $ 430,900      
Reclassification of future tranche right liability upon settlement           $ 4,800    
Common stock, shares authorized (in shares) 130,000,000   500,000,000   500,000,000 500,000,000   130,000,000
Change in fair value of the tranche rights     $ 4,796 $ 0        
Equity                
Class of Stock [Line Items]                
Change in fair value of the tranche rights     4,000          
Other Nonoperating Income (Expense)                
Class of Stock [Line Items]                
Change in fair value of the tranche rights     $ 1,700          
Minimum                
Class of Stock [Line Items]                
Common stock, shares authorized (in shares)           130,000,000    
Maximum                
Class of Stock [Line Items]                
Common stock, shares authorized (in shares)           500,000,000    
Common Stock | Common Stock                
Class of Stock [Line Items]                
Reclassification of future tranche right liability upon settlement $ 23,600              
Common stock, shares authorized (in shares)           500,000,000 130,000,000  
Private Placement | Common Stock                
Class of Stock [Line Items]                
Sale of stock, price per share (in USD per share)   $ 0.0001            
Private Placement | Common Stock | Share-Based Payment Arrangement, Tranche One                
Class of Stock [Line Items]                
Proceeds from issuance of private placement $ 80,000              
Private Placement | Common Stock | Tranche 2                
Class of Stock [Line Items]                
Proceeds from issuance of private placement   $ 80,000            
Private Placement | Common Stock | Tranche 3                
Class of Stock [Line Items]                
Proceeds from issuance of private placement   $ 80,000            
Private Placement | Pre-funded stock warrants                
Class of Stock [Line Items]                
Sale of stock, price per share (in USD per share)   $ 0.0001            
Private Placement | Accredited Investors                
Class of Stock [Line Items]                
Proceeds from issuance of private placement   $ 240,000            
Private Placement | Accredited Investors | Common Stock | Share-Based Payment Arrangement, Tranche One                
Class of Stock [Line Items]                
Sale of stock, price per share (in USD per share) $ 1.43              
Consideration received on transaction $ 80,000              
Number of shares registered for resale 55,944,850              
Private Placement | Accredited Investors | Common Stock | Tranche 2                
Class of Stock [Line Items]                
Sale of stock, price per share (in USD per share)   $ 1.716            
Consideration received on transaction   $ 80,000            
Sale of stock, consideration received, percentage   120.00%            
Threshold trading days for weighted average price calculation   10 days            
Weighted average price (in USD per share)   $ 8.00            
Threshold trading days for aggregate trading volume calculation   10 days            
Aggregate trading volume of last 10 days   $ 100,000            
Private Placement | Accredited Investors | Common Stock | Tranche 3                
Class of Stock [Line Items]                
Consideration received on transaction   $ 80,000            
Third tranche close period after second tranche (in years)   3 years            
Common Stock and Pre-funded Warrants | Common Stock and Pre-funded Warrants                
Class of Stock [Line Items]                
Tranche rights as a liability, remainder amount $ 80,000              
Tranche rights as a liability, received amount $ 56,400