Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 10,936	$ 9,286
Less: accumulated depreciation	(1,380)	(1,055)
Property and equipment, net	9,556	8,231
Rooftop Solar Panel Systems
Property Plant And Equipment [Line Items]
Property and equipment, gross	5,075	5,094
Properties Held for Use
Property Plant And Equipment [Line Items]
Property and equipment, gross	4,399	2,790
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	772	749
Software Systems
Property Plant And Equipment [Line Items]
Property and equipment, gross	318	318
Computers and Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	265	265
Office Equipment and Furniture
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 107	$ 70

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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