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Balance Sheet Components - Additional Information (Detail) - USD ($) $ in Millions | Sep. 30, 2025 | Apr. 30, 2025 | Dec. 31, 2024 | Jun. 28, 2024
--- | --- | --- | --- | ---
Percentage of equity interest |  | 18.35% |  |
Total investment | $ 1.7 |  | $ 1.7 |
Affiliates |  |  |  |
Long-term investments | $ 1.6 |  | $ 1.6 |
Maximum |  |  |  |
Investment obligation amount |  |  |  | $ 4.2
Percentage of equity interest |  |  |  | 18.93%

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