Long-term Debt - Schedule of Aggregate Payments on Long-Term Debt (Details) $ in Thousands |
Dec. 31, 2015
USD ($)
|
|---|---|
| Debt Instrument [Line Items] | |
| 2016 | $ 11,044 |
| 2017 | 10,721 |
| 2018 | 10,079 |
| 2019 | 148,555 |
| 2020 | 17,318 |
| Thereafter | 1,111,618 |
| Total | 1,309,335 |
| Corporate-level | |
| Debt Instrument [Line Items] | |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 135,000 |
| 2020 | 0 |
| Thereafter | 801,395 |
| Total | 936,395 |
| Project level | |
| Debt Instrument [Line Items] | |
| 2016 | 11,044 |
| 2017 | 10,721 |
| 2018 | 10,079 |
| 2019 | 13,555 |
| 2020 | 17,318 |
| Thereafter | 310,223 |
| Total | $ 372,940 |