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Financial Instruments - Additional Information (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021
Schedule Of Investments [Line Items] |  |
Cash, cash equivalents and short -term investments | $ 114,600,000 | $ 141,000,000.0
Impairment charges related to marketable debt securities | 0 |
Provision for credit loss expense related available for sale debt securities | 0 | 0
Operating Accounts |  |
Schedule Of Investments [Line Items] |  |
Cash, cash equivalents and short -term investments | $ 81,500,000 | $ 38,600,000

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