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License and Collaboration Agreements - Collaboration with Tyme (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Jan. 07, 2020
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Gain (loss) on fair value adjustments $ (6,170,000) $ (5,300,000) $ 0  
Collaborative Arrangement, Transaction with Party to Collaborative Arrangement | Tyme        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Co-promotion agreement, percentage of promotional sales effort responsible for       25.00%
Co-promotion agreement, percentage of net revenue receivable       15.00%
Co-promotion agreement, percentage of net revenue receivable due to collaborator       85.00%
Co-promotion agreement, right to repurchase, amount       $ 200,000,000
Gain (loss) on fair value adjustments $ (6,200,000) $ 5,300,000