Business Segments - Identifiable Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	$ 7,226,188	$ 7,420,031
Operating Segments | Drilling Services
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	2,208,251	2,368,604
Operating Segments | Completion Services
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	3,786,399	3,835,699
Operating Segments | Drilling Products
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	996,195	1,011,870
Operating Segments | Corporate Segment
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	176,951	144,637
Other Operations
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	$ 58,392	$ 59,221