Debt (Components of Debt) (Parenthetical) (Detail) - USD ($) $ in Thousands |
Mar. 31, 2017 |
Mar. 21, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|---|---|
| Mortgages | Predecessor | ||||
| Debt Instrument [Line Items] | ||||
| Stated interest rate | 5.46% | 5.46% | ||
| Maximum | Secured Debt | Predecessor | ||||
| Debt Instrument [Line Items] | ||||
| Stated interest rate | 5.00% | 5.00% | ||
| Minimum | Secured Debt | Predecessor | ||||
| Debt Instrument [Line Items] | ||||
| Stated interest rate | 2.85% | 2.85% | ||
| 9.875% Senior Notes due 2020 | Predecessor | ||||
| Debt Instrument [Line Items] | ||||
| Unamortized discount | $ 0 | $ 4,185 | ||
| Stated interest rate | 9.875% | 9.875% | ||
| 8.25% Senior Notes due 2021 | Predecessor | ||||
| Debt Instrument [Line Items] | ||||
| Stated interest rate | 8.25% | 8.25% | ||
| 7.625% Senior Notes due 2022 | Predecessor | ||||
| Debt Instrument [Line Items] | ||||
| Debt instrument unamortized premium | $ 0 | $ 4,939 | ||
| Stated interest rate | 7.625% | 7.625% | ||
| New Term Loan | ||||
| Debt Instrument [Line Items] | ||||
| Unamortized discount | $ 745 | $ 750 | ||
| New Term Loan | Predecessor | ||||
| Debt Instrument [Line Items] | ||||
| Unamortized discount | $ 0 |