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Other Investments - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020 | Nov. 30, 2020
Schedule of Investments [Line Items] |  |  |  |  |  |
Other Investments | $ 83,448 |  | $ 83,448 |  | $ 83,448 |
Adjustments To The Carrying Amount For Other Investments | 0 | $ 0 | 0 | $ 0 |  |
Outpace Bio Inc [Member] |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |
Strategic equity investment | $ 13,000 |  | $ 13,000 |  | $ 13,000 | $ 13,000

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