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Summary of Significant Accounting Policies - Preferred Stock Tranche Liability, At Fair Value (Details) - USD ($)
$ / shares in Units, $ in Millions
May 13, 2025
Jul. 31, 2024
Feb. 22, 2024
Dec. 31, 2025
Jun. 07, 2023
Class of Warrant or Right [Line Items]          
Number of securities called by warrants or rights (in shares)         19,892,387
Allianz Strategic Investments S.à.r.l. (“Allianz”) | Series A Preferred Stock | Allianz Investment Agreement          
Class of Warrant or Right [Line Items]          
Preferred stock, dividend rate, per-dollar amount (in dollars per share) $ 1,000 $ 1,000      
Allianz Strategic Investments S.à.r.l. (“Allianz”) | Allianz Tranche Right | Series A Preferred Stock | Allianz Investment Agreement          
Class of Warrant or Right [Line Items]          
Number of securities called by warrants or rights (in shares) 18,471   50,000 1,523,289  
Value of securities called by warrant or right     $ 50    
Preferred stock, dividend rate, per-dollar amount (in dollars per share)     $ 1,000