Solar Energy Systems, Net (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Property Subject To Or Available For Operating Lease [Line Items] | ||
| Solar energy systems, gross | $ 2,837,454 | $ 2,091,585 |
| Less: Accumulated depreciation and amortization | (303,305) | (212,671) |
| Add: Construction-in-progress | 95,217 | 113,107 |
| Total solar energy systems, net | 2,629,366 | 1,992,021 |
| Solar Energy System Equipment Costs | ||
| Property Subject To Or Available For Operating Lease [Line Items] | ||
| Solar energy systems, gross | 2,459,856 | 1,846,103 |
| Inverters | ||
| Property Subject To Or Available For Operating Lease [Line Items] | ||
| Solar energy systems, gross | 260,011 | 177,202 |
| Initial Direct Costs | ||
| Property Subject To Or Available For Operating Lease [Line Items] | ||
| Solar energy systems, gross | $ 117,587 | $ 68,280 |