Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 10, 2016
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Oct. 10, 2016
Dec. 31, 2015
Dec. 31, 2014
Successor                        
Income Tax [Line Items]                        
Income tax (benefit) expense at the federal statutory rate   $ (3,145)                    
State income taxes - net of federal income tax benefits   0                    
Excess depletion   0                    
Noncontrolling interest in partnership   273                    
Nondeductible expenses   4                    
Change in valuation allowance   2,868                    
Income tax benefit (expense)   $ 0                    
Predecessor                        
Income Tax [Line Items]                        
Income tax (benefit) expense at the federal statutory rate                   $ 0 $ 0 $ 0
State income taxes - net of federal income tax benefits                   406 572 (1,524)
Excess depletion                   0 0 0
Noncontrolling interest in partnership                   0 0 0
Nondeductible expenses                   0 0 0
Change in valuation allowance                   0 0 0
Income tax benefit (expense) $ 0   $ 0 $ (406) $ 0 $ (572) $ 0 $ 0 $ 0 $ 406 $ 572 $ (1,524)