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Marketable Securities - Summary of Contractual Maturities of Available-for-sale Debt Securities (Detail) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Marketable Securities [Line Items] |  |
Amortized Cost | $ 1,107,854 | $ 972,670
Fair Value | 1,110,207 | $ 972,611
Due within one year [Member] |  |
Marketable Securities [Line Items] |  |
Amortized Cost | 523,630 |
Fair Value | 524,421 |
Due after one year through three years [Member] |  |
Marketable Securities [Line Items] |  |
Amortized Cost | 584,224 |
Fair Value | $ 585,786 |

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