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Emergence from Voluntary Reorganization under Chapter 11 Proceedings (Details)
$ / shares in Units, $ in Millions
Dec. 31, 2016
USD ($)
item
shares
Oct. 21, 2016
USD ($)
$ / shares
shares
Nov. 09, 2016
shares
Oct. 20, 2016
USD ($)
Apr. 30, 2016
USD ($)
Apr. 01, 2016
USD ($)
Dec. 31, 2015
shares
Oct. 01, 2015
Aug. 03, 2015
shares
Jun. 02, 2015
May 21, 2015
May 31, 2013
2016 Reorganization                        
Common stock, shares issued 24,994,867                      
Common stock, shares authorized 250,000,000                      
Percentage of Management Equity Incentive Plan   10.00%                    
Common Stock                        
2016 Reorganization                        
Common stock, shares issued 24,994,867                      
Exit Facility                        
2016 Reorganization                        
Maximum borrowing capacity | $ $ 170.0                      
Number of additional borrowing base redeterminations at company request per 6 month period following each scheduled borrowing base redetermination | item 0                      
Reduction of borrowing base under the Exit Facility | $ $ 40.0                      
Exit Facility | Minimum                        
2016 Reorganization                        
Liquidity of the Company (as a percent) 20.0                      
Bankruptcy Reorganization Chapter 11 | Plan Support Agreement | Common Stock                        
2016 Reorganization                        
Common stock, shares issued   24,687,500 294,967                  
Number of shares available for future issuance   17,533                    
Common stock, shares authorized   250,000,000                    
Bankruptcy Reorganization Chapter 11 | Plan Support Agreement | Preferred Stock                        
2016 Reorganization                        
Preferred stock, shares authorized   50,000,000                    
Bankruptcy Reorganization Chapter 11 | Plan Support Agreement | Exit Facility                        
2016 Reorganization                        
Permanent pay-down | $   $ 81.3                    
Anticipated borrowing base after emergence from bankruptcy | $   170.0                    
Maximum borrowing capacity | $   170.0     $ 170.0              
Predecessor                        
2016 Reorganization                        
Common stock, shares issued             10,962,105          
Common stock, shares authorized             100,000,000          
Predecessor | Common Stock                        
2016 Reorganization                        
Common stock, shares issued             10,962,105          
Common stock, shares authorized                 100,000,000      
2020 Senior Notes | Predecessor                        
2016 Reorganization                        
Debt Instrument, Interest Rate, Stated Percentage               10.75%   10.75%    
2021 Senior Notes | Predecessor                        
2016 Reorganization                        
Debt Instrument, Interest Rate, Stated Percentage                   9.25%   9.25%
Second Lien Notes                        
2016 Reorganization                        
Permanent pay-down | $   60.0                    
Second Lien Notes | Bankruptcy Reorganization Chapter 11 | Plan Support Agreement                        
2016 Reorganization                        
Permanent pay-down | $   $ 60.0                    
Second Lien Notes | Predecessor                        
2016 Reorganization                        
Debt Instrument, Interest Rate, Stated Percentage                     10.00%  
Third Lien Notes | Bankruptcy Reorganization Chapter 11 | Plan Support Agreement | Warrants                        
2016 Reorganization                        
Warrants to acquire common stock shares (in shares)   4,411,765                    
Warrant strike price (in dollars per share) | $ / shares   $ 24.00                    
Warrants expiration term   42 months                    
Third Lien Notes | Predecessor                        
2016 Reorganization                        
Debt Instrument, Interest Rate, Stated Percentage                     12.00%  
Unsecured Notes | Bankruptcy Reorganization Chapter 11 | Plan Support Agreement | Warrant B                        
2016 Reorganization                        
Warrants to acquire common stock shares (in shares)   2,213,789                    
Warrant strike price (in dollars per share) | $ / shares   $ 46.00                    
Warrants expiration term   42 months                    
Senior Revolving Credit Facility, due 2018                        
2016 Reorganization                        
Permanent pay-down | $   $ 121.3                    
Senior Revolving Credit Facility, due 2018 | Predecessor                        
2016 Reorganization                        
Maximum borrowing capacity | $       $ 750.0                
Reduction of borrowing base under the Exit Facility | $           $ 82.0