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Long-Term Debt - Senior Secured Credit Facility - Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 04, 2018
Jul. 28, 2015
Jan. 31, 2018
Sep. 30, 2017
Dec. 31, 2017
Jun. 15, 2017
Dec. 31, 2016
Debt Instrument [Line Items]              
Senior Secured Credit Facility         $ 142,080   $ 43,500
Senior secured credit facility sub limit         2,500    
Debt instrument expanded borrowing base         $ 160,000    
Debt instrument borrowing base determination         semi-annually as of May 1 and November 1    
Leverage ratio       4.00% 1.00%    
Minimum              
Debt Instrument [Line Items]              
Commitment fee percentage         0.375%    
Debt instrument expanded borrowing base           $ 112,000  
Maximum              
Debt Instrument [Line Items]              
Commitment fee percentage         0.50%    
Debt instrument expanded borrowing base           $ 160,000  
Senior Secured Credit Facility              
Debt Instrument [Line Items]              
Debt instrument covenant description         The Credit Facility contains two financial covenants, as defined in the Credit Facility: (a) a maximum debt to EBITDAX ratio (discussed further below) and (b) a current ratio of not less than 1.0 to 1.0. As of December 31, 2017, the Company was in compliance with the minimum debt to EBITDAX ratio; however, the current ratio as of December 31, 2017 was approximately 0.7 to 1.0 due to low availability under the Credit Facility.    
Minimum current ratio         100.00%    
Current ratio         70.00%    
Citibank N A | Senior Secured Credit Facility              
Debt Instrument [Line Items]              
Debt instrument maturity date   Oct. 16, 2018          
Debt instrument interest rate         8.75%    
Senior Secured Credit Facility         $ 142,100   $ 43,500
Borrowing availability         $ 17,400    
LRAI | Senior Secured Credit Facility              
Debt Instrument [Line Items]              
Debt instrument basis spread on variable rate         5.13%    
Lien percentage of assets for senior secured credit facility         90.00%    
LRAI | Senior Secured Credit Facility | Federal Funds Effective Rate              
Debt Instrument [Line Items]              
Debt instrument basis spread on variable rate   0.50%          
LRAI | Senior Secured Credit Facility | Adjusted LIBOR Rate              
Debt Instrument [Line Items]              
Debt instrument basis spread on variable rate   1.00%          
Margin of loans, minimum   2.50%          
Margin of loans, maximum   3.50%          
LRAI | Senior Secured Credit Facility | ABR              
Debt Instrument [Line Items]              
Margin of loans, minimum   1.50%          
Margin of loans, maximum   2.50%          
LRAI | Senior Secured Credit Facility | Minimum              
Debt Instrument [Line Items]              
Lien percentage of assets for senior secured credit facility         80.00%    
LRAI | Citibank N A | Senior Secured Credit Facility              
Debt Instrument [Line Items]              
Debt instrument face amount   $ 500,000          
Subsequent Event | Senior Secured Credit Facility              
Debt Instrument [Line Items]              
Debt instrument expanded borrowing base $ 160,000            
Credit facility's outstanding balance paid down     $ 80,000        
Subsequent Event | 11.25% Senior Notes              
Debt Instrument [Line Items]              
Debt instrument maturity date Jan. 01, 2023            
Debt instrument interest rate 11.25%   11.25%        
Subsequent Event | Citibank N A | Senior Secured Credit Facility              
Debt Instrument [Line Items]              
Debt instrument maturity date     Jul. 28, 2020        
Debt instrument interest rate     8.75%