Segment Information - Adjusted operating income (loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Information
Total segment adjusted operating income (loss)	$ 104,107	$ 118,658
Operating segments
Segment Information
Total segment adjusted operating income (loss)	104,107	118,658
Operating segments | U.S. Drilling
Segment Information
Total segment adjusted operating income (loss)	50,529	85,869
Operating segments | International Drilling
Segment Information
Total segment adjusted operating income (loss)	22,476	1,957
Operating segments | Drilling Solutions
Segment Information
Total segment adjusted operating income (loss)	26,893	27,138
Operating segments | Rig Technologies
Segment Information
Total segment adjusted operating income (loss)	$ 4,209	$ 3,694