Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue Recognition
Revenues	$ 734,798	$ 767,067	$ 1,468,502	$ 1,546,206
Operating segments | Lower 48
Revenue Recognition
Revenues	290,243	355,720	591,132	746,583
Operating segments | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	30,953	35,439	62,504	69,932
Operating segments | Alaska
Revenue Recognition
Revenues	11,249	10,136	23,101	23,460
Operating segments | Canada
Revenue Recognition
Revenues	1,825	2,456	3,981	4,683
Operating segments | Middle East & Asia
Revenue Recognition
Revenues	281,885	275,078	563,253	526,024
Operating segments | Latin America
Revenue Recognition
Revenues	111,247	95,272	215,032	187,708
Operating segments | Europe, Africa & CIS
Revenue Recognition
Revenues	21,561	18,799	37,038	38,732
Operating segments | U.S. Drilling
Revenue Recognition
Revenues	259,723	314,830	531,712	665,482
Operating segments | U.S. Drilling | Lower 48
Revenue Recognition
Revenues	220,797	272,909	452,921	579,027
Operating segments | U.S. Drilling | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	28,351	32,316	57,045	63,976
Operating segments | U.S. Drilling | Alaska
Revenue Recognition
Revenues	10,575	9,605	21,746	22,479
Operating segments | International Drilling
Revenue Recognition
Revenues	356,733	337,650	706,092	657,698
Operating segments | International Drilling | Middle East & Asia
Revenue Recognition
Revenues	249,291	238,276	500,532	461,228
Operating segments | International Drilling | Latin America
Revenue Recognition
Revenues	87,975	83,583	172,275	164,634
Operating segments | International Drilling | Europe, Africa & CIS
Revenue Recognition
Revenues	19,467	15,791	33,285	31,836
Operating segments | Drilling Solutions
Revenue Recognition
Revenues	82,961	76,855	158,535	151,898
Operating segments | Drilling Solutions | Lower 48
Revenue Recognition
Revenues	47,434	51,157	92,136	102,941
Operating segments | Drilling Solutions | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	2,602	3,123	5,459	5,956
Operating segments | Drilling Solutions | Alaska
Revenue Recognition
Revenues	674	531	1,355	981
Operating segments | Drilling Solutions | Canada
Revenue Recognition
Revenues	432	312	866	670
Operating segments | Drilling Solutions | Middle East & Asia
Revenue Recognition
Revenues	13,086	11,770	24,042	22,038
Operating segments | Drilling Solutions | Latin America
Revenue Recognition
Revenues	18,339	9,490	34,054	18,560
Operating segments | Drilling Solutions | Europe, Africa & CIS
Revenue Recognition
Revenues	394	472	623	752
Operating segments | Rig Technologies
Revenue Recognition
Revenues	49,546	63,565	99,702	122,044
Operating segments | Rig Technologies | Lower 48
Revenue Recognition
Revenues	22,012	31,654	46,075	64,615
Operating segments | Rig Technologies | Canada
Revenue Recognition
Revenues	1,393	2,144	3,115	4,013
Operating segments | Rig Technologies | Middle East & Asia
Revenue Recognition
Revenues	19,508	25,032	38,679	42,758
Operating segments | Rig Technologies | Latin America
Revenue Recognition
Revenues	4,933	2,199	8,703	4,514
Operating segments | Rig Technologies | Europe, Africa & CIS
Revenue Recognition
Revenues	1,700	2,536	3,130	6,144
Eliminations & other
Revenue Recognition
Revenues	$ (14,165)	$ (25,833)	$ (27,539)	$ (50,916)