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Nature of Business - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Net loss $ 425,377 $ 260,756 $ 126,219
Accumulated deficit $ 972,429 $ 547,052