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Restructuring Expenses - Restructuring Expenses by Reportable Segment (Detail) - Operating Segments - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2020
Restructuring Cost And Reserve [Line Items] |  |
Severance costs | $ 6,500 | $ 6,500
Contract termination costs | 20,373 | 20,373
Other exit costs | 1,544 | 1,544
ROU asset abandonments | 9,921 | 9,921
Total | 38,338 | 38,338
Contract Drilling |  |
Restructuring Cost And Reserve [Line Items] |  |
Severance costs | 1,821 | 1,821
Other exit costs | 523 | 523
ROU asset abandonments | 86 | 86
Total | 2,430 | 2,430
Pressure Pumping |  |
Restructuring Cost And Reserve [Line Items] |  |
Severance costs | 3,460 | 3,460
Contract termination costs | 20,373 | 20,373
Other exit costs | 194 | 194
ROU asset abandonments | 7,304 | 7,304
Total | 31,331 | 31,331
Directional Drilling |  |
Restructuring Cost And Reserve [Line Items] |  |
Severance costs | 503 | 503
Other exit costs | 827 | 827
ROU asset abandonments | 1,845 | 1,845
Total | 3,175 | 3,175
Other Operations |  |
Restructuring Cost And Reserve [Line Items] |  |
Severance costs | 501 | 501
Total | 501 | 501
Corporate |  |
Restructuring Cost And Reserve [Line Items] |  |
Severance costs | 215 | 215
ROU asset abandonments | 686 | 686
Total | $ 901 | $ 901

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