Segment Information - Total assets (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Dec. 31, 2023
Segment Information
Total assets	[1]	$ 4,553,636	$ 5,277,965
Operating segments | U.S. Drilling
Segment Information
Total assets		1,108,961	1,239,765
Operating segments | International Drilling
Segment Information
Total assets		2,321,729	2,227,308
Operating segments | Drilling Solutions
Segment Information
Total assets		77,810	78,472
Operating segments | Rig Technologies
Segment Information
Total assets		213,507	239,167
Other reconciling items
Segment Information
Total assets		$ 831,629	$ 1,493,253

[1] The condensed consolidated balance sheets as of September 30, 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.