v3.26.3
Nature of the Business (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Feb. 05, 2026
Aug. 31, 2026
May 31, 2026
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Dec. 22, 2025
Subsidiary, Sale of Stock [Line Items]                          
Common stock, par value (in usd per share) $ 0.00001   $ 0.00001 $ 0.00001           $ 0.00001   $ 0.00001 $ 0.00001
Stock issued for conversion (in shares)   300,000                      
Warrants, purchase price (in usd per share)     99.99999                    
Pre-funded warrants, net of issuance costs                   $ 28,120 $ 0    
Net losses       $ 20,999 $ 23,502 $ 27,232 $ 20,103 $ 15,645 $ 12,400 71,733 48,148    
Negative cash flows from operations                   58,603 $ 47,974    
Accumulated deficit       195,154           195,154   $ 123,421  
Cash and cash equivalents and marketable securities       $ 798,400           $ 798,400      
Prefunded Warrant                          
Subsidiary, Sale of Stock [Line Items]                          
Warrants, exercise price (in usd per share)   $ 0.00001 $ 0.00001                    
IPO                          
Subsidiary, Sale of Stock [Line Items]                          
Gross proceeds from sale of stock $ 294,800                        
Net proceeds from sale of stock $ 269,100                        
Follow-On Public Offering                          
Subsidiary, Sale of Stock [Line Items]                          
Gross proceeds from sale of stock     $ 442,000                    
Net proceeds from sale of stock     414,300                    
Private Placement                          
Subsidiary, Sale of Stock [Line Items]                          
Net proceeds from sale of stock     $ 28,100                    
Common stock issuable for warrants (in shares)     300,000                    
Warrants, purchase price (in usd per share)     $ 99.99999                    
Pre-funded warrants, net of issuance costs     $ 30,000                    
Private Placement | Prefunded Warrant                          
Subsidiary, Sale of Stock [Line Items]                          
Common stock issuable for warrants (in shares)     300,000                    
Warrants, exercise price (in usd per share)     $ 0.00001                    
Common Stock                          
Subsidiary, Sale of Stock [Line Items]                          
Stock issued for conversion (in shares) 19,250,410                        
Common Stock | IPO                          
Subsidiary, Sale of Stock [Line Items]                          
Shares sold (in shares) 17,339,294                        
Common stock, par value (in usd per share) $ 0.00001                        
Sales price/share (in usd per share) $ 17.00                        
Stock issued for conversion (in shares) 19,250,410                        
Common Stock | Underwriters' over-allotment option                          
Subsidiary, Sale of Stock [Line Items]                          
Shares sold (in shares) 2,261,647   576,568                    
Common Stock | Follow-On Public Offering                          
Subsidiary, Sale of Stock [Line Items]                          
Shares sold (in shares)     4,420,358                    
Sales price/share (in usd per share)     $ 100.00