Segment Information - Adjusted operating income (loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Information
Total segment adjusted operating income (loss)	$ 119,218	$ 33,280	$ 237,876	$ 33,060
Operating segments
Segment Information
Total segment adjusted operating income (loss)	119,218	33,280	237,876	33,060
Operating segments | U.S. Drilling
Segment Information
Total segment adjusted operating income (loss)	75,408	8,288	161,277	2,437
Operating segments | International Drilling
Segment Information
Total segment adjusted operating income (loss)	10,407	4,605	12,364	(1,722)
Operating segments | Drilling Solutions
Segment Information
Total segment adjusted operating income (loss)	28,351	18,260	55,489	32,969
Operating segments | Rig Technologies
Segment Information
Total segment adjusted operating income (loss)	$ 5,052	$ 2,127	$ 8,746	$ (624)