Derivative Instruments - Gain (Loss) On Derivative Instruments (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Net gain (loss) on derivative instruments | $ 2,529 | $ 6,288 | ||
| Predecessor | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Net gain (loss) on derivative instruments | $ (7,843) | $ (5,925) | ||