v3.26.1
Information Concerning the Group's Consolidated Operations - Revenues by Country of Origin and Other Income (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Oct. 15, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of revenue [line items]        
Revenue   $ 72,949 $ 41,505 $ 755
Research tax credit subsidy $ 5,300 6,644 6,447 6,582
Other subsidies and other   0 1,265 1,856
Other income   6,644 7,712 8,438
Total revenues and other income   79,592 49,217 9,193
France [Member]        
Disclosure of revenue [line items]        
Revenue   $ 72,949 $ 41,505 $ 755