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Available-for-Sale-Securities - Classification on Consolidated Balance Sheets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale debt securities | $ 44,657 | $ 64,740
Cash and cash equivalents |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale debt securities | 16,715 | 27,668
Marketable securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale debt securities | $ 27,942 | $ 37,072

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