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Cash, Cash Equivalents and Investments - Gross Unrealized Losses and Fair Value for Available-for-Sale Investments (Detail) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value, Less than 12 months | $ 30,602 | $ 225,222
Unrealized Losses, Less than 12 months | (73) | (3,199)
Fair Value, Greater than 12 Months | 26,594 | 93,582
Unrealized Losses, Greater than 12 Months | (456) | (2,118)
Fair Value | 57,196 | 318,804
Unrealized Losses | (529) | (5,317)
Treasury Bills [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value, Less than 12 months |  | 42,149
Unrealized Losses, Less than 12 months |  | (425)
Fair Value, Greater than 12 Months |  | 2,487
Unrealized Losses, Greater than 12 Months |  | (14)
Fair Value |  | 44,636
Unrealized Losses |  | (439)
Asset-Backed Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value, Less than 12 months | 0 | 11,024
Unrealized Losses, Less than 12 months | 0 | (547)
Fair Value, Greater than 12 Months | 4,182 | 2,290
Unrealized Losses, Greater than 12 Months | (289) | (10)
Fair Value | 4,182 | 13,314
Unrealized Losses | (289) | (557)
Sovereign Bonds [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value, Less than 12 months |  | 0
Unrealized Losses, Less than 12 months |  | 0
Fair Value, Greater than 12 Months |  | 990
Unrealized Losses, Greater than 12 Months |  | (23)
Fair Value |  | 990
Unrealized Losses |  | (23)
Corporate Bonds [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value, Less than 12 months | 30,602 | 172,049
Unrealized Losses, Less than 12 months | (73) | (2,227)
Fair Value, Greater than 12 Months | 22,412 | 87,815
Unrealized Losses, Greater than 12 Months | (167) | (2,071)
Fair Value | 53,014 | 259,864
Unrealized Losses | $ (240) | $ (4,298)

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