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Investments - Investment Income (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Realized gains (losses) | $ 1,185,429 | $ 512,265 | $ 5,244,509 | $ (1,231,163)
Unrealized gains (losses) | (4,689,325) | 4,040,917 | 1,572,140 | (6,478,411)
Dividends | 971,107 | 518,472 | 2,241,037 | 1,983,423
Other | (96,800) | (18,860) | (146,735) | (56,523)
Investment income (loss), net | $ (2,629,589) | $ 5,052,794 | $ 8,910,951 | $ (5,782,674)

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