Acquisitions - Components of Intangible Assets and Estimated Useful Lives (Details) - USD ($) $ in Thousands	Oct. 10, 2021	Jun. 09, 2020
Adamas Pharmaceuticals
Business Acquisition [Line Items]
Estimated Fair Value	$ 450,100
Adamas Pharmaceuticals | Minimum
Business Acquisition [Line Items]
Remaining Weighted- Average Amortization Period (Years)	3 years 1 month 6 days
Adamas Pharmaceuticals | Maximum
Business Acquisition [Line Items]
Remaining Weighted- Average Amortization Period (Years)	8 years 1 month 6 days
USWM Acquisition
Business Acquisition [Line Items]
Estimated Fair Value		$ 355,000
USWM Acquisition | Acquired In-process Research & Development
Business Acquisition [Line Items]
Estimated Fair Value		124,000
USWM Acquisition | Acquired Developed Technology and Product Rights
Business Acquisition [Line Items]
Estimated Fair Value		$ 231,000
USWM Acquisition | Acquired Developed Technology and Product Rights | Minimum
Business Acquisition [Line Items]
Remaining Weighted- Average Amortization Period (Years)		10 years 6 months
USWM Acquisition | Acquired Developed Technology and Product Rights | Maximum
Business Acquisition [Line Items]
Remaining Weighted- Average Amortization Period (Years)		12 years 6 months