Annual report pursuant to Section 13 and 15(d)

Equity Investments - Investments Accounted for by the Equity Method (Details)

v3.6.0.2
Equity Investments - Investments Accounted for by the Equity Method (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Oct. 31, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Feb. 29, 2016
Nov. 30, 2014
Sep. 30, 2014
Oct. 11, 2012
Schedule of Equity Method Investments [Line Items]                
Carrying value of equity investments   $ 243,920 $ 242,393          
Loss (income) from equity method investments   $ 33,985 106,093 $ (139,434)        
Investment in Tatex Thailand II, LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   23.50%            
Carrying value of equity investments   $ 0 0          
Loss (income) from equity method investments   $ (412) 189 (475)        
Investment in Tatex Thailand III, LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   17.90%            
Carrying value of equity investments   $ 0 0          
Loss (income) from equity method investments   $ 0 0 12,408        
Investment in Grizzly Oil Sands ULC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   24.9999%            
Carrying value of equity investments   $ 45,213 50,645          
Loss (income) from equity method investments   $ 25,150 115,544 13,159        
Investment in Bison Drilling and Field Services LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   0.00%            
Carrying value of equity investments   $ 0 0          
Loss (income) from equity method investments   $ 0 0 213        
Investment in Muskie Proppant LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   0.00%            
Carrying value of equity investments   $ 0 0          
Loss (income) from equity method investments   $ 0 0 371        
Investment in Timber Wolf Terminals LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   50.00%            
Carrying value of equity investments   $ 991 999          
Loss (income) from equity method investments   $ 8 14 9        
Investment in Windsor Midstream LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   22.50%            
Carrying value of equity investments   $ 25,749 27,955          
Loss (income) from equity method investments   $ (13,618) (18,398) (477)        
Investment in Stingray Pressure Pumping LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   0.00%            
Carrying value of equity investments   $ 0 0          
Loss (income) from equity method investments   $ 0 0 2,027        
Investment in Stingray Cementing LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   50.00%            
Carrying value of equity investments   $ 1,920 2,487          
Loss (income) from equity method investments   $ 263 147 344        
Investment in Blackhawk Midstream LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   48.50%            
Carrying value of equity investments   $ 0 0          
Loss (income) from equity method investments   $ 0 (7,216) (84,787)        
Investment in Stingray Logistics LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   0.00%            
Carrying value of equity investments   $ 0 0          
Loss (income) from equity method investments   $ 0 0 (464)        
Investment in Diamondback Energy, Inc.                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   0.00%       20.00%    
Carrying value of equity investments   $ 0 0         $ 138,500
Loss (income) from equity method investments   $ 0 0 (79,654)        
Investment in Stingray Energy Services LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   50.00%            
Carrying value of equity investments   $ 4,215 5,908          
Loss (income) from equity method investments   $ 1,044 557 (88)        
Investment in Sturgeon Acquisitions LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   25.00%         25.00%  
Carrying value of equity investments   $ 20,526 22,769          
Loss (income) from equity method investments   $ 993 (1,229) $ (1,819)        
Investment in Mammoth Energy Services, Inc.                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   24.20%   30.50%        
Carrying value of equity investments   $ 111,717 131,630          
Loss (income) from equity method investments $ (3,400) $ 20,646 16,485 $ (201)        
Investment in Strike Force Midstream LLC                
Schedule of Equity Method Investments [Line Items]                
Approximate Ownership %   25.00%     25.00%      
Carrying value of equity investments   $ 33,589 0          
Loss (income) from equity method investments   $ (89) $ 0 $ 0