v3.26.3
Other Balance Sheet Accounts - Summary of Prepaid Expenses and Other Current Assets (Detail) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Materials and supplies $ 100,076 $ 47,387
Advance payments to suppliers 20,787 14,251
Inventories, net 35,281 10,310
Prepaid expenses 33,511 12,192
Strategic investments 71,598 0
Accrued interest receivable 14,126 18,494
Prepaid research and development arrangements 14,175 7,154
Other current assets 28,365 17,963
Total prepaid expenses and other current assets $ 317,919 $ 127,751