v3.25.1
NET REVENUES FROM COLLABORATIONS - Schedule of Revenue Recognized by Accounting Guidance (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]    
Revenue Recognized $ 594,189 $ 494,333
Regeneron Pharmaceuticals | Research Services Obligation | Global Strategic Collaboration    
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]    
Revenue Recognized 13,800 14,700
Regeneron Pharmaceuticals | C5 License Obligation | Global Strategic Collaboration    
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]    
Revenue Recognized $ 21,500 $ 1,700