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Acquisition - Narrative (Details)
Nov. 24, 2021
USD ($)
marketProduct
$ / shares
Mar. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Business Acquisition [Line Items]      
Contingent consideration   $ 56,142,000 $ 80,477,000
Adamas Pharmaceuticals      
Business Acquisition [Line Items]      
Number of established marketed products | marketProduct 2    
Adamas Pharmaceuticals      
Business Acquisition [Line Items]      
Cash consideration paid $ 400,806,000    
Rights per share (in dollars per share) | $ / shares $ 0.50    
Additional cash payments upon milestone achievements minimum $ 150,000,000    
Additional cash payments upon milestone achievements maximum 225,000,000    
Contingent consideration 10,300,000    
Additional cash payments upon milestone achievements minimum 0    
Additional cash payments upon milestone achievements maximum $ 50,900,000