Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Details)

v3.5.0.2
Long-Term Debt - Additional Information (Details) - USD ($)
6 Months Ended
Jun. 30, 2016
Mar. 23, 2016
Feb. 29, 2016
Dec. 31, 2015
Jun. 30, 2015
May 31, 2015
Debt Instrument [Line Items]            
First lien leverage ratio 95.00%          
Current ratio 201.00%          
Secured debt leverage ratio 286.00%          
Maximum | Covenants            
Debt Instrument [Line Items]            
First lien leverage ratio 150.00%          
Secured debt leverage ratio 350.00%          
Minimum | Covenants            
Debt Instrument [Line Items]            
Current ratio 100.00%          
8.50% Senior Notes due June 2019            
Debt Instrument [Line Items]            
Debt instrument interest rate 8.50%     8.50%    
Debt instrument payment terms semi-annually in arrears on June 15 and December 15          
Effective interest rate 8.40%          
Senior notes maturity date Jun. 15, 2019          
9.00% Term Loan due 2020            
Debt Instrument [Line Items]            
Debt instrument interest rate 9.00%     9.00% 9.00% 9.00%
Debt instrument payment terms Interest on the 9.00% Term Loan is payable in arrears semi-annually on May 15 and November 15          
Effective interest rate           9.70%
Revolving Bank Credit Facility Due November 2018            
Debt Instrument [Line Items]            
Effective interest rate 5.50%          
Borrowings and letters of credit, repayment terms To the extent borrowings and letters of credit outstanding exceed the redetermined borrowing base, such excess is required to be repaid within 90 days in three equal monthly payments.          
Credit agreement expiration date Nov. 08, 2018          
Revolving bank credit facility borrowing base   $ 150,000,000 $ 350,000,000      
Unamortized costs related to Credit Agreement $ 1,400,000          
Letters of credit outstanding 900,000     $ 900,000    
Revolving Bank Credit Facility Due November 2018 | Letter Of Credit            
Debt Instrument [Line Items]            
Revolving bank credit facility maximum lender commitment $ 150,000,000