Annual report pursuant to Section 13 and 15(d)

Related Party Transactions - Narrative (Details)

v3.8.0.1
Related Party Transactions - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Jun. 30, 2017
May 31, 2017
Dec. 31, 2014
Stingray Cementing LLC          
Related Party Transaction [Line Items]          
Equity investment ownership interest 0.00%     50.00%  
Stingray Cementing LLC | Investee          
Related Party Transaction [Line Items]          
Due to related parties   $ 0.5 $ 0.5    
Stingray Energy Services LLC          
Related Party Transaction [Line Items]          
Equity investment ownership interest 0.00%     50.00%  
Stingray Energy Services LLC | Investee          
Related Party Transaction [Line Items]          
Due to related parties   $ 3.6 $ 1.6    
Mammoth Energy Partners LP          
Related Party Transaction [Line Items]          
Equity investment ownership interest 25.10% 24.20%     30.50%
Mammoth Energy Partners LP | Investee          
Related Party Transaction [Line Items]          
Equity investment ownership interest 25.10%        
Due to related parties $ 32.0 $ 23.5      
Oil and natural gas properties $ 196.5 110.5      
Strike Force Midstream LLC          
Related Party Transaction [Line Items]          
Equity investment ownership interest 25.00%        
Strike Force Midstream LLC | Investee          
Related Party Transaction [Line Items]          
Due to related parties $ 8.4 1.6      
Strike Force Midstream LLC | Equity Method Investee          
Related Party Transaction [Line Items]          
Oil and natural gas properties 23.1 $ 1.8      
Lease Operating Expense [Member] | Stingray Cementing LLC | Investee          
Related Party Transaction [Line Items]          
Related party services provided $ 2.1