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Segment Information - Financial Information with Respect to Reportable Segments (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Revenue from External Customer [Line Items]        
Revenue $ 128,986 $ 108,083 $ 376,640 $ 336,473
Operating loss (13,591) (35,080) (72,280) (105,656)
Adjusted EBITDA 11,616 1,973 20,410 7,073
International Services        
Revenue from External Customer [Line Items]        
Adjusted EBITDA 7,848 11,151 23,894 25,459
U.S. Services        
Revenue from External Customer [Line Items]        
Adjusted EBITDA (846) (11,322) (16,526) (27,775)
Tubular Sales        
Revenue from External Customer [Line Items]        
Adjusted EBITDA 286 (1,333) 2,644 1,736
Blackhawk        
Revenue from External Customer [Line Items]        
Adjusted EBITDA 4,328 3,477 10,398 7,653
Operating Segments | International Services        
Revenue from External Customer [Line Items]        
Revenue 53,891 53,742 161,985 153,851
Operating loss 1,423 (2,647) (12,350) (19,140)
Operating Segments | U.S. Services        
Revenue from External Customer [Line Items]        
Revenue 38,292 29,065 106,035 89,936
Operating loss (14,482) (25,453) (56,382) (73,092)
Operating Segments | Tubular Sales        
Revenue from External Customer [Line Items]        
Revenue 12,871 7,701 42,152 40,787
Operating loss (493) (3,967) (57) (782)
Operating Segments | Blackhawk        
Revenue from External Customer [Line Items]        
Revenue 23,932 17,575 66,468 51,899
Operating loss (39) (3,013) (3,491) (12,642)
Eliminations        
Revenue from External Customer [Line Items]        
Revenue (6,778) (7,209) (16,301) (23,363)
Eliminations | International Services        
Revenue from External Customer [Line Items]        
Revenue (44) 3 (123) 18
Eliminations | U.S. Services        
Revenue from External Customer [Line Items]        
Revenue 4,694 4,062 13,549 12,890
Eliminations | Tubular Sales        
Revenue from External Customer [Line Items]        
Revenue 92 3,111 285 10,350
Eliminations | Blackhawk        
Revenue from External Customer [Line Items]        
Revenue $ 2,036 $ 33 $ 2,590 $ 105