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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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