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Revenues (Tables)
 9 Months Ended
Sep. 30, 2024
Revenues [Abstract]  
Revenues

During the three and nine months ended September 30, 2024 and 2023, our revenues were comprised of the following (in thousands):

 
Three Months Ended
September 30,
    
Nine Months Ended
September 30,
  
   
2024
    
2023
    
2024
    
2023
  
Revenue:
                        
Commercial revenue:
                        
SPINRAZA royalties
  
$
57,208
    
$
67,253
    
$
152,406
    
$
178,511
  
WAINUA royalties
    
5,371
      
—
      
10,278
      
—
  
Other commercial revenue:
                                
TEGSEDI and WAYLIVRA revenue, net
    
8,924
      
8,286
      
25,744
      
25,420
  
Licensing and other royalty revenue
    
4,228
      
8,542
      
18,932
      
25,815
  
Total other commercial revenue
    
13,152
      
16,828
      
44,676
      
51,235
  
Total commercial revenue
    
75,731
      
84,081
      
207,360
      
229,746
  
Research and development revenue:
                                
Collaborative agreement revenue
    
44,883
      
44,167
      
235,753
      
173,513
  
WAINUA joint development revenue
    
13,200
      
15,959
      
35,449
      
59,883
  
Total research and development revenue
    
58,083
      
60,126
      
271,202
      
233,396
  
Total revenue
  
$
133,814
    
$
144,207
    
$
478,562
    
$
463,142