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Long-Term Debt - Senior Secured Credit Facility - Additional Information (Details)
1 Months Ended 3 Months Ended 6 Months Ended
Jun. 29, 2020
Jun. 11, 2020
USD ($)
Jul. 28, 2015
Jul. 31, 2015
USD ($)
Mar. 31, 2019
Jun. 30, 2020
USD ($)
Aug. 14, 2020
USD ($)
Jul. 02, 2020
USD ($)
Jul. 01, 2020
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]                      
Senior Secured Credit Facility           $ 285,000,000         $ 247,000,000
Incremental default interest 0.020                    
Maximum debt EBITDAX ratio           4.0          
Current ratio           100.00%          
Senior Secured Credit Facility                      
Debt Instrument [Line Items]                      
Senior secured credit facility sub limit           $ 2,500,000          
Debt instrument expanded borrowing base   $ 286,000,000             $ 286,000,000 $ 290,000,000  
Senior Secured Credit Facility | Minimum                      
Debt Instrument [Line Items]                      
Commitment fee percentage           0.375%          
Senior Secured Credit Facility | Maximum                      
Debt Instrument [Line Items]                      
Commitment fee percentage   0.50%       0.50%          
Letter of Credit | Senior Secured Credit Facility                      
Debt Instrument [Line Items]                      
Debt instrument borrowing base                     $ 400,000
LRAI | Senior Secured Credit Facility | Minimum                      
Debt Instrument [Line Items]                      
Percentage of assets secured under credit facility   100.00%     80.00%            
LRAI | Citibank N A | Senior Secured Credit Facility                      
Debt Instrument [Line Items]                      
Debt instrument face amount       $ 500,000,000              
Senior Secured Credit Facility           $ 285,000,000.0          
Weighted average interest rate on borrowings           3.73%          
Debt instrument borrowing base           $ 600,000          
Federal Funds Effective Rate | LRAI | Senior Secured Credit Facility                      
Debt Instrument [Line Items]                      
Variable rate     0.50%                
LIBOR | Senior Secured Credit Facility | Minimum                      
Debt Instrument [Line Items]                      
Variable rate   3.00%   2.00%              
LIBOR | Senior Secured Credit Facility | Maximum                      
Debt Instrument [Line Items]                      
Variable rate   4.50%   3.00%              
LIBOR | LRAI | Senior Secured Credit Facility                      
Debt Instrument [Line Items]                      
Variable rate     1.00%                
Alternate Base Rate | Senior Secured Credit Facility | Minimum                      
Debt Instrument [Line Items]                      
Variable rate   2.00%   1.00%              
Alternate Base Rate | Senior Secured Credit Facility | Maximum                      
Debt Instrument [Line Items]                      
Variable rate   3.50%   2.00%              
Subsequent Event                      
Debt Instrument [Line Items]                      
Senior Secured Credit Facility             $ 285,000,000.0        
Subsequent Event | Senior Secured Credit Facility                      
Debt Instrument [Line Items]                      
Senior Secured Credit Facility             285,000,000 $ 285,000,000      
Debt instrument expanded borrowing base               225,000,000      
Borrowing deficiency             60,400,000 $ 60,400,000      
Line of credit facility, covenant, payment requirement             $ 60,000,000