Annual report pursuant to Section 13 and 15(d)

Related Party Transactions (Details)

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Related Party Transactions (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
May 31, 2018
May 01, 2018
Investee          
Related Party Transaction [Line Items]          
Equity investment ownership interest   21.90%      
Stingray Cementing LLC          
Related Party Transaction [Line Items]          
Equity investment ownership interest 0.00%        
Stingray Energy Services LLC          
Related Party Transaction [Line Items]          
Equity investment ownership interest 0.00%        
Mammoth Energy Partners LP | Investee          
Related Party Transaction [Line Items]          
Equity investment ownership interest 21.80%        
Due to related parties $ 8.4 $ 10.9      
Oil and natural gas properties $ 109.9 139.7      
Strike Force Midstream LLC          
Related Party Transaction [Line Items]          
Equity investment ownership interest 0.00%     25.00% 25.00%
Strike Force Midstream LLC | Equity Method Investee          
Related Party Transaction [Line Items]          
Oil and natural gas properties   18.5 $ 23.1    
Lease operating expense | Stingray Cementing LLC | Investee          
Related Party Transaction [Line Items]          
Related party services provided $ 0.6 $ 2.0 $ 2.1