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Business Segments - Income (Loss) Before Income Taxes (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |  |
Operating income (loss) | $ (677,750) | $ (892,258) | $ (461,576)
Credit loss expense | 1,500 | (5,606) | (5,683)
Interest income | 222 | 1,254 | 6,013
Interest expense | 41,978 | 40,770 | 75,204
Other income (expense) | (275) | 756 | 389
Loss before income taxes | (719,781) | (931,018) | (530,378)
Other Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating income (loss) | 9,905 | (41,685) | (54,725)
Contract Drilling | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating income (loss) | 423,029 | (543,438) | (151,329)
Pressure Pumping | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating income (loss) | 118,863 | (166,666) | (102,701)
Directional Drilling | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating income (loss) | 35,301 | (40,612) | (52,724)
Corporate Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating income (loss) | $ (92,152) | $ (94,251) | $ (94,414)

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