Acquisition - Components of Intangible Assets and Estimated Useful Lives (Details) - Adamas Pharmaceuticals - USD ($) $ in Thousands	Jan. 01, 2020	Nov. 24, 2021
Business Acquisition [Line Items]
Intangibles		$ 450,100
Acquired developed technology and product rights
Business Acquisition [Line Items]
Intangibles		$ 450,100
Acquired developed technology and product rights | Minimum
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	3 years 1 month 6 days
Acquired developed technology and product rights | Maximum
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life	8 years 1 month 6 days