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Segment Information (Tables)
 3 Months Ended
Mar. 31, 2025
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment The approximate disaggregated amounts that comprise R&D expenses regularly reviewed by the CODM are as follows:
Three Months Ended
March 31,
(in thousands)20252024
Program third-party research and development expenses$8,429 $3,331 
Other research and development expenses(1)
27,885 44,693 
Total research and development expenses$36,314 $48,024 
(1)Other R&D expenses consist of all other R&D costs incurred for the benefit of multiple R&D programs, including legal, employee costs, depreciation, information technology, other facility-bases expenses and other third-party costs.