Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Estimated Useful Lives of the Respective Assets

Depreciation and amortization is calculated using the straight-line method over the estimated useful lives of the respective assets as follows: 

	Useful Lives
System equipment costs	30 years
Initial direct costs related to solar energy systems	Lease term (20 years)

Schedule of Future Minimum Annual Lease Receipts From Customers

Future minimum annual lease receipts from customers under Solar Leases are as follows (in thousands):

Years Ending December 31,
2017	$	4,962
2018		5,106
2019		5,254
2020		5,406
2021		5,565