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Summary of Significant Accounting Policies (Tables)
9 Months Ended
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