Summary of Significant Accounting Policies - Preferred Stock Tranche Liability, At Fair Value (Details) - Allianz Strategic Investments S.à.r.l. (“Allianz”) - Allianz Tranche Right - Series A Preferred Stock - Allianz Investment Agreement - USD ($) $ in Millions	Sep. 30, 2025	May 13, 2025	Feb. 22, 2024
Class of Warrant or Right [Line Items]
Number of securities called by warrants or rights (in shares)	1,523,289	18,471	50,000
Value of securities called by warrant or right			$ 50