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Restructuring Expenses - Restructuring Expenses by Reportable Segment (Detail) - Operating Segments $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($)
Restructuring Cost And Reserve [Line Items] |
Severance costs | $ 6,500
Contract termination costs | 20,373
Other exit costs | 1,544
Right-of-use asset abandonments | 9,921
Total | 38,338
Contract Drilling |
Restructuring Cost And Reserve [Line Items] |
Severance costs | 1,821
Other exit costs | 523
Right-of-use asset abandonments | 86
Total | 2,430
Pressure Pumping |
Restructuring Cost And Reserve [Line Items] |
Severance costs | 3,460
Contract termination costs | 20,373
Other exit costs | 194
Right-of-use asset abandonments | 7,304
Total | 31,331
Directional Drilling |
Restructuring Cost And Reserve [Line Items] |
Severance costs | 503
Other exit costs | 827
Right-of-use asset abandonments | 1,845
Total | 3,175
Other Operation |
Restructuring Cost And Reserve [Line Items] |
Severance costs | 501
Total | 501
Corporate Segment |
Restructuring Cost And Reserve [Line Items] |
Severance costs | 215
Right-of-use asset abandonments | 686
Total | $ 901

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