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Related Party Transactions (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Related Party Transaction [Line Items]        
Research and development expense $ 58,767,000 $ 99,524,000 $ 183,920,000 $ 219,462,000
Limited Liability Company        
Related Party Transaction [Line Items]        
Research and development expense $ 0 $ 0 $ 0 $ 300,000