Summary of Significant Accounting Policies - Summary of Revenues Based Upon Sales Channel (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Amount	$ 56,067,826	$ 42,889,965	$ 110,736,024	$ 87,373,705
Percent of Total	100.00%	100.00%	100.00%	100.00%
Sales Channel Directly To Consumer Subscription Sales [Member]
Disaggregation of Revenue [Line Items]
Amount	$ 9,667,533	$ 5,546,028	$ 18,015,429	$ 11,026,552
Percent of Total	17.20%	12.90%	16.30%	12.60%
Sales Channel Directly To Consumer Transaction Sales [Member]
Disaggregation of Revenue [Line Items]
Amount	$ 19,214,981	$ 11,486,170	$ 36,677,282	$ 25,409,646
Percent of Total	34.30%	26.80%	33.10%	29.10%
Sales Channel Professional Business To Business Sales [Member]
Disaggregation of Revenue [Line Items]
Amount	$ 27,185,312	$ 25,857,767	$ 56,043,313	$ 50,937,507
Percent of Total	48.50%	60.30%	50.60%	58.30%