Segment Information - Total assets (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Segment Information
Total assets	[1]	$ 5,277,965	$ 4,729,854
Operating segments | U.S. Drilling
Segment Information
Total assets		1,239,765	1,389,459
Operating segments | International Drilling
Segment Information
Total assets		2,227,308	2,273,766
Operating segments | Drilling Solutions
Segment Information
Total assets		78,472	63,652
Operating segments | Rig Technologies
Segment Information
Total assets		239,167	207,345
Other reconciling items
Segment Information
Total assets		$ 1,493,253	$ 795,632

[1] The consolidated balance sheets include assets and liabilities of consolidated joint ventures. See Note 13—Joint Ventures for additional information.