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Fair Value Measurements - Additional Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]    
Measurement at fair value, transfers among Level 1, Level 2 or Level 3 $ 0  
Affini T Therapeutics, Inc.    
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]    
Investment in equity securities 2,000,000.0 $ 2,000,000.0
Adjustments to value of investment in equity securities $ 0