Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies - Additional Information (Details)

v3.6.0.2
Significant Accounting Policies - Additional Information (Details)
 3 Months Ended 4 Months Ended 12 Months Ended
Dec. 31, 2016
USD ($)
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Sep. 30, 2015
USD ($)
Jun. 30, 2015
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
$ / bbl
$ / MMBTU
$ / Mcf
Dec. 31, 2015
USD ($)
$ / Mcf
Dec. 31, 2014
USD ($)
$ / Mcf
Dec. 31, 2013
$ / Mcf
Sep. 07, 2016
Significant Accounting Policies [Line Items]                            
Natural gas imbalances $ 5,300,000       $ 6,900,000       $ 5,300,000 $ 5,300,000 $ 6,900,000      
Allowance for doubtful accounts receivable 7,600,000       2,500,000       $ 7,600,000 7,600,000 2,500,000      
Reductions recorded in allowance for doubtful accounts                   $ 0 0      
Percentage of discount from proved reserves                   10.00%        
Ceiling test write-down of oil and natural gas properties $ 0 $ 57,900,000 $ 104,600,000 $ 116,600,000 $ 32,400,000 $ 441,600,000 $ 252,800,000 $ 260,400,000   $ 279,063,000 987,238,000 $ 0    
Proved undeveloped reserves classification period to be drilled                   5 years        
Write-offs of debt issuance costs                   $ 1,400,000 $ 3,200,000      
Hurricane Ike                            
Significant Accounting Policies [Line Items]                            
Other income related to settlement of insurance claims                   $ 7,700,000        
11.00% 1.5 Lien Term Loan, Due November 2019                            
Significant Accounting Policies [Line Items]                            
Debt instrument interest rate 11.00%               11.00% 11.00%        
11.00% 1.5 Lien Term Loan, Due November 2019 | Exchange Transaction                            
Significant Accounting Policies [Line Items]                            
Debt instrument interest rate                           11.00%
1.5 Lien Term Loan | Exchange Transaction                            
Significant Accounting Policies [Line Items]                            
Interest expense recorded for new debt                 $ 0          
Natural Gas                            
Significant Accounting Policies [Line Items]                            
Weighted price | $ / Mcf                   2.47 2.50 4.27 3.80  
SEC Methodology | Natural Gas                            
Significant Accounting Policies [Line Items]                            
Weighted price | $ / MMBTU                   2.48        
SEC Methodology | Crude Oil Per Barrel                            
Significant Accounting Policies [Line Items]                            
Weighted price | $ / bbl                   39.25        
Fixtures and Non-Oil and Natural Gas Property and Equipment | Minimum                            
Significant Accounting Policies [Line Items]                            
Estimated useful lives                   5 years        
Fixtures and Non-Oil and Natural Gas Property and Equipment | Maximum                            
Significant Accounting Policies [Line Items]                            
Estimated useful lives                   7 years        
Accounting Standards Update 2016-09                            
Significant Accounting Policies [Line Items]                            
Prior period reclassification adjustment                     $ 700,000 $ 800,000