Property and Equipment, Net - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Total, at cost	$ 33,377	$ 30,257
Less: accumulated depreciation and amortization	(13,755)	(12,831)
Property and equipment, net	19,622	17,426
Land [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	2,582	2,582
Building [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	10,141	10,141
Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	8,578	7,204
Office Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	1,366	1,355
Tenant and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	9,990	8,255
Vehicle Fleet [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	$ 720	$ 720