Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Narrative (Details)

v3.20.2
Fair Value Measurements - Narrative (Details)
3 Months Ended 12 Months Ended
Dec. 08, 2017
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]        
Impairment of proved oil and gas properties   $ 333,840,000 $ 0  
Series B Preferred Stock        
Debt Instrument [Line Items]        
Series B preferred stock, dividend rate 10.00% 10.00%   10.00%
Level 2 | Second Lien Notes | Senior Notes        
Debt Instrument [Line Items]        
Fair value of second lien notes   $ 80,800,000   $ 98,500,000
Discount rate        
Debt Instrument [Line Items]        
Measurement input   0.10