Intangibles - Components of Gross Carrying Amount and Accumulated Amortization of Intangible Assets (Detail) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Intangible assets:
Total intangible assets	$ 54,843,484	$ 22,686,665
Total accumulated amortization	(8,328,658)	(4,110,547)
Intangible assets, net	46,514,826	18,576,118
In-Place Lease Intangibles [Member]
Intangible assets:
Total intangible assets	52,730,750	22,234,766
Total accumulated amortization	(8,138,885)	(4,005,777)
Intangible assets, net	44,591,865
Above-Market Lease Intangibles [Member]
Intangible assets:
Total intangible assets	2,112,734	451,899
Total accumulated amortization	(189,773)	$ (104,770)
Intangible assets, net	$ 1,922,961