v3.25.4
Segment and Geographic Information - Summary of Reconciliation of Segment Financial Information to Loss from Operations (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment Reporting Information [Line Items]      
Income from operations $ 1,414,015 $ 310,403 $ 119,966
Total stock-based compensation expense 684,033 691,638 475,903
Reconciling items      
Segment Reporting Information [Line Items]      
Income from operations 1,414,015 310,403 119,966
Research and development expenses 420,838 342,813 306,560
General and administrative expenses 423,811 375,094 343,126
Total stock-based compensation expense 684,033 691,638 475,903
Operating Segments      
Segment Reporting Information [Line Items]      
Total contribution $ 2,942,697 $ 1,719,948 $ 1,245,555