Business Segments - Identifiable Assets (Detail) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Segment Reporting Asset Reconciling Item [Line Items]
Total assets		$ 2,888,964	$ 2,957,848
Corporate Segment
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	[1]	89,077	156,928
Operating Segments | Contract Drilling
Segment Reporting Asset Reconciling Item [Line Items]
Total assets		2,166,964	2,169,501
Operating Segments | Pressure Pumping
Segment Reporting Asset Reconciling Item [Line Items]
Total assets		444,486	458,202
Operating Segments | Directional Drilling
Segment Reporting Asset Reconciling Item [Line Items]
Total assets		97,093	87,285
Other Operations
Segment Reporting Asset Reconciling Item [Line Items]
Total assets		$ 91,344	$ 85,932

[1] Corporate assets primarily include cash on hand and certain property and equipment.