Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 109,155,403	$ 72,404,403	$ 206,733,664	$ 159,933,028
Other comprehensive (loss) income before tax:
Foreign currency translation adjustments	(1,456,377)	(3,131,326)	(1,577,544)	(4,027,746)
Unrealized gains (losses) on debt securities, net	554,565	(3,414,108)	3,136,342	(11,209,338)
Other comprehensive (loss) income, before tax	(901,812)	(6,545,434)	1,558,798	(15,237,084)
Income tax impact related to components of other comprehensive income (loss)	116,459	(716,963)	658,632	(2,353,961)
Other comprehensive (loss) income, net of tax	(1,018,271)	(5,828,471)	900,166	(12,883,123)
Comprehensive income	$ 108,137,132	$ 66,575,932	$ 207,633,830	$ 147,049,905