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Fair Value Measurements and Marketable Equity Securities - Additional Information (Detail) - USD ($) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 11, 2025 | Aug. 31, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Contingent consideration classified as equity, fair value disclosure |  |  | $ 1,104,000 |  | $ 1,104,000 |  |
Aggregate proceeds from sale of marketable equity securities |  |  |  |  | 8,316,000 | $ 23,098,000 |
Marketable equity securities outstanding |  |  | $ 104,996,000 |  | $ 104,996,000 |  | $ 107,309,000
Investment In Recursion Pharmaceuticals Class A Common Stock [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Investment in equity securities at fair value sold number of shares |  |  | 0 | 0 | 737,466 | 1,725,902 |
Weighted average price per share of investment sold |  |  |  |  | $ 11.28 | $ 13.38 |
Aggregate proceeds from sale of marketable equity securities |  |  |  |  | $ 8,300,000 | $ 23,100,000 |
Deep 6 Acquisition [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Number of held back shares in connection with business acquisition | 17,372 |  |  |  |  |  |
Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Contingent consideration classified as equity, fair value disclosure |  |  | $ 1,104,000 |  | 1,104,000 |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Contingent consideration classified as equity, fair value disclosure |  |  | 0 |  | 0 |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Contingent consideration classified as equity, fair value disclosure |  |  | 0 |  | 0 |  |
Gain or loss due to change in fair value for assets and liabilities measured at fair value using significant unobservable inputs (Level 3) |  |  | $ 0 |  | 0 |  |
Company recognized gain (loss) due change fair value of warrant liability |  |  |  | $ 1,700,000 |  | $ 900,000 |
Warrant [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Warrant issued |  |  |  |  | $ 100,000,000 |  |
Commercialization And Reference Laboratory Agreement [Member] | Personalis Inc [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Class Of Warrant Share Issued |  |  | 9,218,800 |  | 9,218,800 |  |
Common stock purchase price |  | $ 18,400,000 |  |  |  |  |
Purchase of additional shares of common stock |  | 3,500,000 |  |  |  |  |
Purchase of additional shares of common stock value |  | $ 17,700,000 |  |  |  |  |
Outstanding common stock percentage |  | 20.00% |  |  |  |  |
Commercialization And Reference Laboratory Agreement [Member] | Personalis Inc [Member] | Prior December312024 [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  | $ 1.5 |  | $ 1.5 |  |
Commercialization And Reference Laboratory Agreement [Member] | Personalis Inc [Member] | Prior December312025 [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  | $ 2.5 |  | $ 2.5 |  |
Maximum [Member] | Commercialization And Reference Laboratory Agreement [Member] | Personalis Inc [Member] | Prior December312024 [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Class Of Warrant Excisable At Cash |  |  | 4,609,400 |  | 4,609,400 |  |
Maximum [Member] | Commercialization And Reference Laboratory Agreement [Member] | Personalis Inc [Member] | Prior December312025 [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Class Of Warrant Excisable At Cash |  |  | 4,609,400 |  | 4,609,400 |  |
Contingent Consideration [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Contingent consideration classified as equity, fair value disclosure |  |  | $ 800,000 |  | $ 800,000 |  |
Contingent Consideration [Member] | Common Stock [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Contingent consideration arrangement of non voting common stock |  |  |  |  | 35,000 |  |
Contingent Consideration [Member] | Common Stock [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Contingent consideration arrangement of non voting common stock |  |  |  |  | 35,000 |  |

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