Segment Information - Operating revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Information
Operating revenues	$ 779,139	$ 568,539
U.S. Drilling
Segment Information
Operating revenues	350,652	217,583
International Drilling
Segment Information
Operating revenues	320,048	279,030
Drilling Solutions
Segment Information
Operating revenues	75,043	54,182
Rig Technologies
Segment Information
Operating revenues	58,479	36,736
Operating segments | U.S. Drilling
Segment Information
Operating revenues	350,652	217,583
Operating segments | International Drilling
Segment Information
Operating revenues	320,048	279,030
Operating segments | Drilling Solutions
Segment Information
Operating revenues	75,043	54,182
Operating segments | Rig Technologies
Segment Information
Operating revenues	58,479	36,736
Other reconciling items
Segment Information
Operating revenues	$ (25,083)	$ (18,992)