Business Segments - Capital Expenditures (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Capital expenditures	$ 160,422	$ 126,355	$ 410,417	$ 317,553
Operating Segments | Drilling Services
Segment Reporting Information [Line Items]
Capital expenditures	89,242	72,683	261,155	181,754
Operating Segments | Completion Services
Segment Reporting Information [Line Items]
Capital expenditures	56,464	46,653	107,529	114,669
Operating Segments | Drilling Produtcs
Segment Reporting Information [Line Items]
Capital expenditures	7,940	0	7,940	0
Operating Segments | Other Operations
Segment Reporting Information [Line Items]
Capital expenditures	5,972	6,457	18,387	19,654
Operating Segments | Corporate Segment
Segment Reporting Information [Line Items]
Capital expenditures	$ 804	$ 562	$ 15,406	$ 1,476