Revenue - Summary of Revenue Disaggregated by Source (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation Of Revenue [Line Items]
Total revenue	$ 36,858,083	$ 21,969,241	$ 71,960,074	$ 47,301,055
Services [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	34,595,901	20,229,773	67,300,484	42,985,224
Product Sales and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 2,262,182	$ 1,739,468	$ 4,659,590	$ 4,315,831