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Fair Value Measurements - Summary of Derivative Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2023
USD ($)
Derivative Liabilities  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Beginning balance $ 300
Change in fair value measurement 1,280
Ending balance 1,580
ACEA Therapeutics, Inc  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Beginning balance 49,346
Change in fair value measurement 3,800
Ending balance $ 53,146