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Privately-Held Securities - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2025 | Dec. 31, 2024
Privately Held Securities [Line Items] |  |  |
Other noncurrent assets | $ 39,189,000 | $ 39,189,000 | $ 4,437,000
Subscription Agreement [Member] |  |  |
Privately Held Securities [Line Items] |  |  |
Other noncurrent assets | 28,000,000 | 28,000,000 |
Impairments of privately held securities |  | 0 |
Commercial Contract [Member] |  |  |
Privately Held Securities [Line Items] |  |  |
Revenue recognized from commercial contract | $ 900,000 | $ 900,000 |

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- Definition Privately held securities. + References No definition available. + Details
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- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-8 + Details
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