Quarterly report pursuant to Section 13 or 15(d)

Reporting Segments (Details)

v3.10.0.1
Reporting Segments (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
segment
Jun. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Segment Reporting Information [Line Items]            
Number of reportable segments | segment     4      
Revenue $ 533,594 $ 98,262 $ 1,027,843 $ 173,228    
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion 339,828 77,340 665,929 135,838    
Intersegment cost of revenues 0 0 0 0    
Total cost of revenue 339,828 77,340 665,929 135,838    
Selling, general and administrative 65,127 7,700 103,638 14,437    
Depreciation, depletion, amortization and accretion 30,795 19,893 57,703 37,130    
Impairment of long-lived assets 187 0 187 0    
Operating income (loss) 97,657 (6,671) 200,386 (14,177)    
Interest expense, net 959 1,112 2,196 1,509    
Bargain purchase gain 0 (4,012) 0 (4,012)    
Other expense 486 203 514 387    
Income (loss) before income taxes 96,212 (3,974) 197,676 (12,061)    
Total assets 1,029,123   1,029,123   $ 867,243  
Accounts receivable, net 312,850   312,850   243,746  
Goodwill 101,511   101,511   99,811 $ 88,727
Pressure Pumping            
Segment Reporting Information [Line Items]            
Revenue 100,333 49,924 196,912 90,377    
Infrastructure services            
Segment Reporting Information [Line Items]            
Revenue 360,250 1,709 685,709 1,709    
Sand            
Segment Reporting Information [Line Items]            
Revenue 37,439 24,000 73,942 38,912    
Drilling            
Segment Reporting Information [Line Items]            
Revenue 17,126 12,472 32,354 23,223    
All Other            
Segment Reporting Information [Line Items]            
Revenue 18,446 10,157 38,926 19,007    
Intersegment revenues            
Segment Reporting Information [Line Items]            
Revenue 0 0 0 0    
Intersegment revenues | Pressure Pumping            
Segment Reporting Information [Line Items]            
Revenue 1,073 272 5,632 459    
Intersegment revenues | Infrastructure services            
Segment Reporting Information [Line Items]            
Revenue 0 0 0 0    
Intersegment revenues | Sand            
Segment Reporting Information [Line Items]            
Revenue 15,406 762 29,918 1,447    
Intersegment revenues | Drilling            
Segment Reporting Information [Line Items]            
Revenue 84 0 86 0    
Intersegment revenues | All Other            
Segment Reporting Information [Line Items]            
Revenue 1,721 85 4,136 85    
Eliminations            
Segment Reporting Information [Line Items]            
Revenue (18,284) (1,119) (39,772) (1,991)    
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion 0 0 0 0    
Intersegment cost of revenues (18,036) (1,119) (39,782) (1,991)    
Total cost of revenue (18,036) (1,119) (39,782) (1,991)    
Selling, general and administrative 0 0 0 0    
Depreciation, depletion, amortization and accretion 0 0 0 0    
Impairment of long-lived assets 0   0      
Operating income (loss) (248) 0 10 0    
Interest expense, net 0 0 0 0    
Bargain purchase gain   0   0    
Other expense 0 0 0 0    
Income (loss) before income taxes (248) 0 10 0    
Total assets (32,521)   (32,521)   (158,325)  
Goodwill 0   0   0  
Eliminations | All Other            
Segment Reporting Information [Line Items]            
Accounts receivable, net 16,900   16,900   137,400  
Operating Segments | Pressure Pumping            
Segment Reporting Information [Line Items]            
Revenue 101,406 50,196 202,544 90,836    
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion 61,593 35,826 128,205 64,533    
Intersegment cost of revenues 16,174 847 31,576 1,532    
Total cost of revenue 77,767 36,673 159,781 66,065    
Selling, general and administrative 20,822 2,403 23,485 4,180    
Depreciation, depletion, amortization and accretion 13,829 9,626 27,815 18,784    
Impairment of long-lived assets 0   0      
Operating income (loss) (11,012) 1,494 (8,537) 1,807    
Interest expense, net 341 303 845 431    
Bargain purchase gain   0   0    
Other expense 80 4 92 7    
Income (loss) before income taxes (11,433) 1,187 (9,474) 1,369    
Total assets 277,895   277,895   297,140  
Goodwill 86,043   86,043   86,043  
Operating Segments | Infrastructure services            
Segment Reporting Information [Line Items]            
Revenue 360,250 1,709 685,709 1,709    
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion 210,189 1,626 404,265 1,712    
Intersegment cost of revenues 754 0 2,545 0    
Total cost of revenue 210,943 1,626 406,810 1,712    
Selling, general and administrative 39,786 307 71,637 355    
Depreciation, depletion, amortization and accretion 4,094 340 6,501 340    
Impairment of long-lived assets 0   0      
Operating income (loss) 105,427 (564) 200,761 (698)    
Interest expense, net 106 4 182 4    
Bargain purchase gain   0   0    
Other expense 330 0 332 0    
Income (loss) before income taxes 104,991 (568) 200,247 (702)    
Total assets 341,171   341,171   205,275  
Goodwill 891   891   891  
Operating Segments | Sand            
Segment Reporting Information [Line Items]            
Revenue 52,845 24,762 103,860 40,359    
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion 35,117 19,974 68,447 32,582    
Intersegment cost of revenues 1,019 267 5,305 454    
Total cost of revenue 36,136 20,241 73,752 33,036    
Selling, general and administrative 1,787 2,416 3,431 4,474    
Depreciation, depletion, amortization and accretion 3,881 2,206 6,197 3,569    
Impairment of long-lived assets 0   0      
Operating income (loss) 11,041 (101) 20,480 (720)    
Interest expense, net 76 353 156 486    
Bargain purchase gain   (4,012)   (4,012)    
Other expense 36 140 23 154    
Income (loss) before income taxes 10,929 3,418 20,301 2,652    
Total assets 199,421   199,421   190,859  
Goodwill 2,684   2,684   2,684  
Operating Segments | Drilling            
Segment Reporting Information [Line Items]            
Revenue 17,210 12,472 32,440 23,223    
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion 15,280 12,033 29,755 22,986    
Intersegment cost of revenues (40) 0 122 0    
Total cost of revenue 15,240 12,033 29,877 22,986    
Selling, general and administrative 1,591 1,435 2,844 2,728    
Depreciation, depletion, amortization and accretion 5,349 4,974 9,704 9,942    
Impairment of long-lived assets 187   187      
Operating income (loss) (5,157) (5,970) (10,172) (12,433)    
Interest expense, net 265 440 660 657    
Bargain purchase gain   0   0    
Other expense 32 60 72 224    
Income (loss) before income taxes (5,454) (6,470) (10,904) (13,314)    
Total assets 92,578   92,578   88,527  
Goodwill 0   0   0  
Operating Segments | All Other            
Segment Reporting Information [Line Items]            
Revenue 20,167 10,242 43,062 19,092    
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion 17,649 7,881 35,257 14,025    
Intersegment cost of revenues 129 5 234 5    
Total cost of revenue 17,778 7,886 35,491 14,030    
Selling, general and administrative 1,141 1,139 2,241 2,700    
Depreciation, depletion, amortization and accretion 3,642 2,747 7,486 4,495    
Impairment of long-lived assets 0   0      
Operating income (loss) (2,394) (1,530) (2,156) (2,133)    
Interest expense, net 171 12 353 (69)    
Bargain purchase gain   0   0    
Other expense 8 (1) (5) 2    
Income (loss) before income taxes (2,573) $ (1,541) (2,504) $ (2,066)    
Total assets 150,579   150,579   243,767  
Goodwill 11,893   11,893   10,193  
Corporate | All Other            
Segment Reporting Information [Line Items]            
Total assets $ 34,300   $ 34,300   $ 148,800