Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Details)

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Long-Term Debt - Additional Information (Details) - USD ($)
shares in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Jun. 30, 2017
Sep. 07, 2016
May 31, 2015
Mar. 31, 2017
Dec. 31, 2016
Debt Instrument [Line Items]          
Debt instrument aggregate principal amount       $ 873,733,000 $ 873,733,000
8.50% Unsecured Senior Notes, Due June 2019          
Debt Instrument [Line Items]          
Debt instrument aggregate principal amount       $ 189,829,000 $ 189,829,000
Debt instrument maturity date       Jun. 15, 2019 Jun. 15, 2019
Debt instrument interest rate       8.50% 8.50%
Debt instrument payment terms       semi-annually in arrears on June 15 and December 15  
Annual effective interest rate       8.30%  
9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020          
Debt Instrument [Line Items]          
Debt instrument aggregate principal amount       $ 163,007,000 $ 163,007,000
Debt instrument maturity date       May 15, 2020  
Debt instrument interest rate   9.00%   9.00%  
Debt instrument paid in kind interest rate       10.75%  
Debt instrument payment terms       Cash interest accrues at 9.00% per annum and is payable on May 15 and November 15 of each year. The Second Lien PIK Toggle Notes contain PIK interest provisions, where certain semi-annual interest is added to the principal amount instead of being paid in cash in the then current semi-annual period. We have the option for the first 18 months to pay all or a portion of interest in kind at a rate of 10.75% per annum.  
Debt instrument, period in which interest can be paid-in-kind   18 months      
Debt instrument stated interest rate percentage for payment-in-kind   10.75%      
8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021          
Debt Instrument [Line Items]          
Debt instrument aggregate principal amount       $ 145,897,000 145,897,000
Debt instrument maturity date       Jun. 15, 2021  
Debt instrument interest rate   8.50%   8.50%  
Debt instrument paid in kind interest rate       10.00%  
Debt instrument payment terms       The maturity date will accelerate to February 28, 2019 if the remaining Unsecured Senior Notes have not been extended, renewed, refunded, defeased, discharged, replaced or refinanced by February 28, 2019. Cash interest accrues at 8.50% per annum and is payable on June 15 and December 15 of each year. The Third Lien PIK Toggle Notes contain PIK interest provisions, where certain semi-annual interest is added to the principal amount instead of being paid in cash in the then current semi-annual period. We have the option for the first 24 months to pay all or a portion of interest in kind at a rate of 10.00% per annum.  
Debt instrument, period in which interest can be paid-in-kind   24 months      
Debt instrument stated interest rate percentage for payment-in-kind   10.00%      
11.00% 1.5 Lien Term Loan, Due November 2019          
Debt Instrument [Line Items]          
Debt instrument aggregate principal amount       $ 75,000,000 75,000,000
Debt instrument maturity date       Nov. 15, 2019  
Debt instrument interest rate       11.00%  
Revolving Bank Credit Facility Due November 2018          
Debt Instrument [Line Items]          
Revolving bank credit facility borrowing base       $ 150,000,000  
Revolving bank credit facility maximum lender commitment       150,000,000  
Outstanding balances on the revolving bank credit facility (including letters of credit)       $ 5,000,000  
Unused portion of the borrowing base commitment fee       0.50%  
Credit agreement expiration date       Nov. 08, 2018  
Revolving bank credit facility borrowings outstanding       $ 0 0
Letters of credit outstanding       500,000 500,000
Remaining availability       $ 149,500,000  
Revolving Bank Credit Facility Due November 2018 | Scenario Covenants          
Debt Instrument [Line Items]          
First lien leverage ratio, through June 30, 2017       250.00%  
Maximum unrestricted cash balance if revolver balance is above $5 million       $ 35,000,000  
Revolving Bank Credit Facility Due November 2018 | Scenario Forecast          
Debt Instrument [Line Items]          
First lien leverage ratio, after June 30, 2017 200.00%        
Revolving Bank Credit Facility Due November 2018 | Minimum          
Debt Instrument [Line Items]          
Current ratio       100.00%  
Revolving Bank Credit Facility Due November 2018 | Minimum | Eurodollar          
Debt Instrument [Line Items]          
Debt instrument, basis spread on variable rate       3.00%  
Revolving Bank Credit Facility Due November 2018 | Maximum | Eurodollar          
Debt Instrument [Line Items]          
Debt instrument, basis spread on variable rate       4.00%  
11.00% 1.5 Lien Term Loan, Due November 2019          
Debt Instrument [Line Items]          
Debt instrument maturity date   Nov. 15, 2019      
Debt instrument interest rate   11.00%      
Debt instrument payment terms       Interest accrues at 11.00% per annum and is payable quarterly in cash.  
Debt instrument frequency of interest payment in cash       quarterly  
Debt instrument, maturity date, description       1.5 Lien Term Loan on September 7, 2016 with a maturity date of November 15, 2019. The maturity date will accelerate to February 28, 2019 if the remaining Unsecured Senior Notes have not been extended, renewed, refunded, defeased, discharged, replaced or refinanced by February 28, 2019.  
9.00 % Second Lien Term Loan, Due May 2020          
Debt Instrument [Line Items]          
Debt instrument aggregate principal amount       $ 300,000,000 $ 300,000,000
Debt instrument maturity date       May 15, 2020 May 15, 2020
Debt instrument interest rate     9.00% 9.00% 9.00%
Debt instrument payment terms       Interest on the Second Lien Term Loan is payable in arrears semi-annually on May 15 and November 15.  
Debt instrument discount rate     1.00%    
Annual effective interest rate       9.60%  
Exchange Transaction | 8.50% Unsecured Senior Notes, Due June 2019          
Debt Instrument [Line Items]          
Debt instrument aggregate principal amount   $ 710,200,000      
Percentage of unsecured senior notes exchanged   79.00%      
Debt instrument maturity date       Jun. 15, 2019  
Exchange Transaction | 8.50% Unsecured Senior Notes, Due June 2019 | Common Stock          
Debt Instrument [Line Items]          
Debt conversion, common stock shares issued   60.4      
Exchange Transaction | 9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020          
Debt Instrument [Line Items]          
Debt instrument aggregate principal amount   $ 159,800,000      
Debt instrument maturity date       May 15, 2020  
Exchange Transaction | 9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020 | Minimum          
Debt Instrument [Line Items]          
Debt instrument interest rate   9.00%      
Exchange Transaction | 9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020 | Maximum          
Debt Instrument [Line Items]          
Debt instrument paid in kind interest rate   10.75%      
Exchange Transaction | 8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021          
Debt Instrument [Line Items]          
Debt instrument aggregate principal amount   $ 142,000,000      
Debt instrument maturity date       Jun. 15, 2021  
Exchange Transaction | 8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021 | Minimum          
Debt Instrument [Line Items]          
Debt instrument interest rate   8.50%      
Exchange Transaction | 8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021 | Maximum          
Debt Instrument [Line Items]          
Debt instrument paid in kind interest rate   10.00%      
Exchange Transaction | 11.00% 1.5 Lien Term Loan, Due November 2019          
Debt Instrument [Line Items]          
Debt instrument aggregate principal amount   $ 75,000,000      
Debt instrument maturity date       Nov. 15, 2019  
Debt instrument interest rate   11.00%      
Exchange Transaction | 1.5 Lien Term Loan          
Debt Instrument [Line Items]          
Interest expense recorded for new debt       $ 0