Other Income (Expense) - Schedule of Other Nonoperating Income (Expense) (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Fair value adjustments on equity investments	$ (4,074,934)	$ 7,284,213	$ 14,604,387	$ 6,717,178
Fair value adjustments on variable note receivable	0	0	0	(815,937)
Loss on extinguishment of debt	0	0	(9,881,847)	0
Fair value adjustment on warrants issued	13,461,750	(3,181,114)	5,451,000	(2,060,771)
Fair value adjustments on contingent consideration	(249,078)	442,991	(662,027)	425,426
Earnings from equity method investments	(316,177)	850,000	1,330,196	1,400,000
Other	(696,948)	1,036,793	(1,036,636)	1,835,670
Total Other Income (Expense)	$ 8,124,613	$ 6,432,883	$ 9,805,073	$ 7,501,566