Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Financial Information with Respect to Reportable Segments (Details)

v3.19.1
Segment Information - Financial Information with Respect to Reportable Segments (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Segment Reporting, Revenue Reconciling Item [Line Items]    
Revenues $ 141,665 $ 141,268
Depreciation and amortization 12,440 11,078
Capital expenditures 12,638 12,414
Directional Drilling    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Revenues 61,956 37,602
Depreciation and amortization 2,966 2,607
Capital expenditures 3,391 2,708
Pressure Pumping    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Revenues 28,631 53,400
Depreciation and amortization 5,478 5,536
Capital expenditures 3,289 5,211
Pressure Control    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Revenues 28,775 27,961
Depreciation and amortization 2,932 1,913
Capital expenditures 5,048 4,380
Wireline    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Revenues 22,303 22,305
Depreciation and amortization 1,064 1,022
Capital expenditures $ 910 $ 115