Segment Information - Operating revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Information
Operating revenues	$ 767,067	$ 630,943	$ 1,546,206	$ 1,199,482
Operating segments | U.S. Drilling
Segment Information
Operating revenues	314,830	253,008	665,482	470,591
Operating segments | International Drilling
Segment Information
Operating revenues	337,650	296,320	657,698	575,350
Operating segments | Drilling Solutions
Segment Information
Operating revenues	76,855	55,879	151,898	110,061
Operating segments | Rig Technologies
Segment Information
Operating revenues	63,565	45,094	122,044	81,830
Other reconciling items
Segment Information
Operating revenues	$ (25,833)	$ (19,358)	$ (50,916)	$ (38,350)