Other Balance Sheet Accounts - Summary of Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Materials and supplies	$ 23,967	$ 18,658
Prepaid expenses	4,452	4,890
Accrued interest receivable	4,151	2,221
Other current assets	6,657	2,556
Total prepaid expenses and other current assets	$ 39,227	$ 28,325