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Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2021
Accounting Policies [Abstract] |
Schedule of Property and Equipment Useful Lives | The estimated useful lives of property and equipment by asset category are described below:
Property and Equipment Category |  | Estimated Useful Life
Rooftop solar panel systems |  | Thirty years
Properties held for use |  | Twenty seven and a half years
Leasehold improvements |  | Lesser of estimated useful life or remaining lease term
Computers and equipment |  | Five years
Office equipment and furniture |  | Seven years
Software systems |  | Four to five years

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