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Financial Instruments - Additional Information (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 USD ($) security | Sep. 30, 2024 USD ($) security
Financial Instruments |  |
Interest receivable | $ 43,000 | $ 43,000
Allowance for credit loss | 0 | 0
Available for sales debt securities, current | 6,000,000 | 6,000,000
Available for sales debt securities, non-current | $ 3,900,000 | $ 3,900,000
Available-for-sale debt securities, loss position, current, number of positions | security | 0 | 0
Available-for-sale debt securities, loss position, non-current, number of positions | security | 10 | 10
Available-for-sale debt securities, loss position, non-current | $ 9,600,000 | $ 9,600,000
BFTR, LLC |  |
Financial Instruments |  |
Investment percentage (percent) | 18.00% | 18.00%

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