Lease Pass-Through Financing Obligations	6 Months Ended
Jun. 30, 2017
Property Subject to or Available for Operating Lease, Net [Abstract]
Lease Pass-Through Financing Obligations	Lease Pass-Through Financing Obligations The Company has five ongoing transactions referred to as “lease pass-through arrangements.” Under lease pass-through arrangements, the Company leases solar energy systems to Fund investors under a master lease agreement, and these investors in turn are assigned the leases with customers. The Company receives all of the value attributable to the accelerated tax depreciation and some or all of the value attributable to the other incentives. The Company assigns to the Fund investors the value attributable to the investment tax credit (“ITC”) and, for the duration of the master lease term, the long-term recurring customer payments. Given the assignment of the operating cash flows, these arrangements are accounted for as financing obligations. In addition, in one of the lease pass-through structures, the Company sold, as well as leased, solar energy systems to a Fund investor under a master purchase agreement. As the substantial risks and rewards in the underlying solar energy systems were retained by the Company, this arrangement was also accounted for as a financing obligation. Under these lease pass-through arrangements, wholly owned subsidiaries of the Company finance the cost of solar energy systems with investors for an initial term of 20 – 25 years. The solar energy systems are subject to Customer Agreements with an initial term not exceeding 20 years. These solar energy systems are reported under the line item solar energy systems, net in the consolidated balance sheets. As of June 30, 2017 and December 31, 2016, the cost of the solar energy systems placed in service under the lease pass-through arrangements was $494.0 million and $494.9 million, respectively. The accumulated depreciation related to these assets as of June 30, 2017 and December 31, 2016 was $59.8 million and $50.8 million, respectively. In 2015, the Company entered into a lease pass-through arrangement and in connection with this arrangement, the Company agreed to defer a portion (up to 25%) of the amounts required to be paid upfront under the arrangement through a loan between an indirect wholly owned subsidiary of the Company and a subsidiary of the Fund investor. The loan is collateralized by the related cash flows assigned to the Fund investor. There is a legal right to offset the loan if an event of default has occurred. Therefore, the lease pass-through financing obligation related to this arrangement is recorded net of the loan. As of June 30, 2017 and December 31, 2016, the loan amount was $21.9 million and $23.2 million, respectively.

Lease Pass-Through Financing Obligations

The Company has five ongoing transactions referred to as “lease pass-through arrangements.” Under lease pass-through arrangements, the Company leases solar energy systems to Fund investors under a master lease agreement, and these investors in turn are assigned the leases with customers. The Company receives all of the value attributable to the accelerated tax depreciation and some or all of the value attributable to the other incentives. The Company assigns to the Fund investors the value attributable to the investment tax credit (“ITC”) and, for the duration of the master lease term, the long-term recurring customer payments. Given the assignment of the operating cash flows, these arrangements are accounted for as financing obligations. In addition, in one of the lease pass-through structures, the Company sold, as well as leased, solar energy systems to a Fund investor under a master purchase agreement. As the substantial risks and rewards in the underlying solar energy systems were retained by the Company, this arrangement was also accounted for as a financing obligation.

Under these lease pass-through arrangements, wholly owned subsidiaries of the Company finance the cost of solar energy systems with investors for an initial term of 20 – 25 years. The solar energy systems are subject to Customer Agreements with an initial term not exceeding 20 years. These solar energy systems are reported under the line item solar energy systems, net in the consolidated balance sheets. As of June 30, 2017 and December 31, 2016, the cost of the solar energy systems placed in service under the lease pass-through arrangements was $494.0 million and $494.9 million, respectively. The accumulated depreciation related to these assets as of June 30, 2017 and December 31, 2016 was $59.8 million and $50.8 million, respectively.

In 2015, the Company entered into a lease pass-through arrangement and in connection with this arrangement, the Company agreed to defer a portion (up to 25%) of the amounts required to be paid upfront under the arrangement through a loan between an indirect wholly owned subsidiary of the Company and a subsidiary of the Fund investor. The loan is collateralized by the related cash flows assigned to the Fund investor. There is a legal right to offset the loan if an event of default has occurred. Therefore, the lease pass-through financing obligation related to this arrangement is recorded net of the loan. As of June 30, 2017 and December 31, 2016, the loan amount was $21.9 million and $23.2 million, respectively.