Segment Information - Total assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024		Dec. 31, 2023	[1]	Mar. 31, 2023
Segment Information
Total assets	$ 4,644,972	[1]	$ 5,277,965		$ 5,277,965
Operating segments | U.S. Drilling
Segment Information
Total assets	1,192,528				1,239,765
Operating segments | International Drilling
Segment Information
Total assets	2,280,486				2,227,308
Operating segments | Drilling Solutions
Segment Information
Total assets	78,278				78,472
Operating segments | Rig Technologies
Segment Information
Total assets	235,320				239,167
Other reconciling items
Segment Information
Total assets	$ 858,360				$ 1,493,253

[1] The condensed consolidated balance sheets as of March 31, 2024 and December 31, 2023 include assets and liabilities of variable interest entities. See Note 3—Joint Ventures and Note 13—Special Purpose Acquisition Company for additional information.