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Investments - Fair Values and Gross Unrealized Gains and Losses on Investments (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Schedule of Held-to-Maturity Securities [Line Items] |  |
Cash and cash equivalents | $ 12,502 | $ 6,690
Investments, amortized cost | 16,799 | 58,733
Investments, gross unrealized gains | 0 | 0
Investments, gross unrealized losses | (10) | (144)
Investments, fair value | 16,789 | 58,589
Investments, net carrying value | 16,799 | 58,733
Commercial paper |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Cash and cash equivalents | 4,976 |
Cash equivalents, gross unrealized gains | 10 |
Cash equivalents, gross unrealized losses | 0 |
Cash equivalents, fair value | 4,986 |
Commercial paper |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Investments, amortized cost | 16,799 | 58,733
Investments, gross unrealized gains | 0 | 0
Investments, gross unrealized losses | (10) | (144)
Investments, fair value | 16,789 | 58,589
Investments, net carrying value | $ 16,799 | $ 58,733

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