v3.23.1
Product Revenues, Accounts Receivable, and Reserves for Product Sales - Schedule of Disaggregation of Product Revenue by Major Source (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Product Revenues Accounts Receivable And Reserves For Product Sales [Line Items]    
Total Product revenue, net $ 44,846 $ 14,381
EMPAVELI [Member]    
Product Revenues Accounts Receivable And Reserves For Product Sales [Line Items]    
Total Product revenue, net 20,440 12,109
SYFOVRE [Member]    
Product Revenues Accounts Receivable And Reserves For Product Sales [Line Items]    
Total Product revenue, net 18,360  
Product Revenue, Net [Member]    
Product Revenues Accounts Receivable And Reserves For Product Sales [Line Items]    
Total Product revenue, net $ 38,800 $ 12,109