Fair value measurements (Counterparty Credit Risk) (Detail) $ in Thousands |
Mar. 31, 2017
USD ($)
Financial_Institutions
|
Dec. 31, 2016
USD ($)
Financial_Institutions
|
|---|---|---|
| Counterparty Credit Risk | ||
| Derivative liabilities subject to acceleration | $ | $ 363 | |
| Predecessor | ||
| Counterparty Credit Risk | ||
| Derivative liabilities subject to acceleration | $ | $ 13,553 | |
| Concentration of Counterparty Credit Risk | ||
| Counterparty Credit Risk | ||
| Counterparty Credit Risk | 4 | |
| Concentration of Counterparty Credit Risk | Predecessor | ||
| Counterparty Credit Risk | ||
| Counterparty Credit Risk | 4 | |
| Derivative contracts, number of counterparties subject to offset under existing credit facility | 4 |