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Business Segments - Income (Loss) Before Income Taxes (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]        
Operating income (loss) $ 104,582 $ 36,762 $ 230,545 $ 17,881
Interest income 1,212 14 2,452 29
Interest expense (9,738) (10,658) (18,564) (21,223)
Other 2,323 (2,452) 3,809 (870)
Income (loss) before income taxes 98,379 23,666 218,242 (4,183)
Operating Segments | Contract Drilling        
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]        
Operating income (loss) 113,342 21,720 213,672 18,556
Operating Segments | Pressure Pumping        
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]        
Operating income (loss) 25,304 20,091 69,736 26,512
Operating Segments | Directional Drilling        
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]        
Operating income (loss) 1,341 4,028 3,449 5,816
Operating Segments | Corporate Segment        
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]        
Operating income (loss) (33,410) (12,377) (55,152) (37,044)
Other Operations        
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]        
Operating income (loss) $ (1,995) $ 3,300 $ (1,160) $ 4,041