v3.26.1
Intangible Assets and Goodwill - Narrative (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
May 14, 2026
Dec. 31, 2025
Goodwill [Line Items]            
Amortization and impairment of acquired intangible assets $ 168,200,000 $ 130,900,000 $ 304,700,000 $ 242,700,000    
Impairment of intangible assets 0 3,500,000 0 3,500,000    
Accumulated impairment losses related to goodwill 0   0      
Amortization of intangible assets 168,200,000 $ 127,400,000 304,700,000 $ 239,200,000    
Apellis Pharmaceuticals, Inc.            
Goodwill [Line Items]            
Amortization of intangible assets $ 22,600,000   $ 22,600,000      
Acquired and in-licensed rights and patents            
Goodwill [Line Items]            
Weighted-Average remaining useful life 13 years   13 years     13 years
Completed Technology | Apellis Pharmaceuticals, Inc.            
Goodwill [Line Items]            
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived         $ 4,630,000,000  
Completed Technology | Apellis Pharmaceuticals, Inc. | EMPAVELI            
Goodwill [Line Items]            
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived         $ 2,400,000,000  
Minimum            
Goodwill [Line Items]            
Estimated life (in years) 1 year   1 year     1 year
Maximum            
Goodwill [Line Items]            
Estimated life (in years) 30 years   30 years     30 years