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Business Segments - Depreciation, Depletion, Amortization and Impairment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Depreciation, depletion, amortization and impairment	$ 122,150	$ 141,065	$ 360,641	$ 437,984
Other Operations
Segment Reporting Information [Line Items]
Depreciation, depletion, amortization and impairment	8,212	5,866	21,412	17,309
Operating Segments | Contract Drilling
Segment Reporting Information [Line Items]
Depreciation, amortization and impairment	83,851	97,160	250,779	297,426
Operating Segments | Pressure Pumping
Segment Reporting Information [Line Items]
Depreciation, amortization and impairment	24,746	29,838	73,244	98,963
Operating Segments | Directional Drilling
Segment Reporting Information [Line Items]
Depreciation, amortization and impairment	4,056	6,772	11,259	19,863
Operating Segments | Corporate Segment
Segment Reporting Information [Line Items]
Depreciation	$ 1,285	$ 1,429	$ 3,947	$ 4,423

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- Definition

Depreciation, amortization and impairment.

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Depreciation depletion amortization and impairment.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
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-Paragraph 28
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