Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment (Details)

v3.19.2
Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 767,576   $ 734,654
Deposits on equipment and equipment in process of assembly 8,860   16,865
Total property, plant and equipment, net 408,408   436,699
Proceeds from disposal of property and equipment 2,465 $ 898  
Gain (loss) on disposal of property and equipment (176) 128  
Pressure pumping equipment      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 214,588   208,968
Pressure pumping equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 3 years    
Pressure pumping equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 5 years    
Drilling rigs and related equipment      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 122,998   122,198
Proceeds from disposal of property and equipment 600 600  
Gain (loss) on disposal of property and equipment $ 500 $ 500  
Drilling rigs and related equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 3 years    
Drilling rigs and related equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 15 years    
Machinery and equipment      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 196,691   173,867
Machinery and equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 7 years    
Machinery and equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 20 years    
Buildings      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 16,887   16,887
Buildings | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 15 years    
Buildings | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 39 years    
Vehicles, trucks and trailers      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 134,952   132,337
Vehicles, trucks and trailers | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 5 years    
Vehicles, trucks and trailers | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 10 years    
Coil tubing equipment      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 29,846   29,128
Coil tubing equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 4 years    
Coil tubing equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 10 years    
Land      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 13,687   14,235
Land improvements      
Property, Plant and Equipment [Line Items]      
Useful Life 15 years    
Property, plant, and equipment $ 10,056   9,614
Rail improvements      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 13,806   13,806
Rail improvements | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 10 years    
Rail improvements | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 20 years    
Other property and equipment      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 14,065   13,614
Other property and equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 3 years    
Other property and equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 12 years    
Assets held and used      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross $ 776,436   751,519
Less: accumulated depreciation 390,168   337,514
Total property, plant and equipment, net 386,268   414,005
Equipment leased to other party      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 35,662   34,430
Less: accumulated depreciation 13,522   11,736
Total property, plant and equipment, net 22,140   22,694
Buildings      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross $ 30,725   29,493
Buildings | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 15 years    
Buildings | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 30 years    
Helicopters      
Property, Plant and Equipment [Line Items]      
Useful Life 6 years    
Property, plant and equipment, gross $ 4,937   $ 4,937