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Business Segments - Income (Loss) Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Operating income (loss)	$ 211,031	$ (677,750)	$ (892,258)
Credit loss expense	0	1,500	(5,606)
Interest income	360	222	1,254
Interest expense	(40,256)	(41,978)	(40,770)
Other	(3,273)	(275)	756
Income (loss) before income taxes	167,862	(719,781)	(931,018)
Other Operations
Segment Reporting Information [Line Items]
Operating income (loss)	7,810	(9,905)	(41,685)
Contract Drilling | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	140,239	(423,029)	(543,438)
Pressure Pumping | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	134,103	(118,863)	(166,666)
Directional Drilling | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	15,534	(35,301)	(40,612)
Corporate Segment | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)	$ (86,655)	$ (92,152)	$ (94,251)

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