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Fair Value Measurements - Summary of Company's Available for Sale Securities (Details) - USD ($) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | $ 552,335,654 | $ 99,596,821
Gross Unrealized Gains | 103,619 | 560,797
Gross Unrealized Losses | (590,163) |
Fair Value | 551,849,110 | $ 100,157,618
Corporate Bonds One Maturing 2021-2022 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 368,182,546 |
Gross Unrealized Gains | 103,619 |
Gross Unrealized Losses | (93,213) |
Fair Value | $ 368,192,952 |
Corporate Bonds One Maturing 2021-2022 | Minimum |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Effective Maturity | 2021 |
Corporate Bonds One Maturing 2021-2022 | Maximum |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Effective Maturity | 2022 |
Corporate Bonds Maturing 2022-2023 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | $ 178,904,470 |
Gross Unrealized Losses | (496,456) |
Fair Value | $ 178,408,014 |
Corporate Bonds Maturing 2022-2023 | Minimum |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Effective Maturity | 2022 |
Corporate Bonds Maturing 2022-2023 | Maximum |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Effective Maturity | 2023 |
Government Securities Maturing 2022 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Effective Maturity | 2022 |
Amortized Cost | $ 5,248,638 |
Gross Unrealized Losses | (494) |
Fair Value | $ 5,248,144 |
Corporate Bonds Maturing 2021 |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Effective Maturity |  | 2021
Amortized Cost |  | $ 99,596,821
Gross Unrealized Gains |  | 560,797
Fair Value |  | $ 100,157,618

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