CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 404,487,743	$ 428,403,272	$ 318,757,352
Other comprehensive income (loss) before tax:
Foreign currency translation adjustments	(1,283,017)	(502,480)	(4,952,828)
Unrealized gains (losses) on available-for-sale securities, net	1,811,137	10,238,344	(14,072,595)
Other comprehensive income (loss), before tax	528,120	9,735,864	(19,025,423)
Expense (benefit) for income taxes related to components of other comprehensive income (loss)	380,339	2,150,052	(2,955,245)
Other comprehensive income (loss), net of tax	147,781	7,585,812	(16,070,178)
Comprehensive income	$ 404,635,524	$ 435,989,084	$ 302,687,174