Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenue Recognition
Revenues	$ 818,190	$ 731,805	$ 2,387,164	$ 2,200,307
Operating Segments
Revenue Recognition
Revenues	834,610	748,720	2,431,636	2,244,761
Operating Segments | Lower 48
Revenue Recognition
Revenues	278,584	279,960	843,238	871,091
Operating Segments | U.S. Offshore
Revenue Recognition
Revenues	33,645	27,479	92,891	89,984
Operating Segments | Alaska
Revenue Recognition
Revenues	35,812	12,626	91,915	35,726
Operating Segments | Canada
Revenue Recognition
Revenues	17,385	1,352	36,908	5,333
Operating Segments | Middle East & Asia
Revenue Recognition
Revenues	316,759	283,128	915,611	846,382
Operating Segments | Latin America
Revenue Recognition
Revenues	113,273	118,236	344,317	333,269
Operating Segments | Europe, Africa & CIS
Revenue Recognition
Revenues	39,152	25,939	106,756	62,976
Operating Segments | U.S. Drilling
Revenue Recognition
Revenues	249,836	254,773	736,020	786,485
Operating Segments | U.S. Drilling | Lower 48
Revenue Recognition
Revenues	185,404	217,138	563,898	670,060
Operating Segments | U.S. Drilling | U.S. Offshore
Revenue Recognition
Revenues	30,802	25,510	85,989	82,555
Operating Segments | U.S. Drilling | Alaska
Revenue Recognition
Revenues	33,630	12,125	86,133	33,870
Operating Segments | International Drilling
Revenue Recognition
Revenues	407,235	368,594	1,173,923	1,074,686
Operating Segments | International Drilling | Canada
Revenue Recognition
Revenues	15,633		30,676
Operating Segments | International Drilling | Middle East & Asia
Revenue Recognition
Revenues	270,003	250,740	780,429	751,271
Operating Segments | International Drilling | Latin America
Revenue Recognition
Revenues	91,050	94,140	276,279	266,416
Operating Segments | International Drilling | Europe, Africa & CIS
Revenue Recognition
Revenues	30,549	23,714	86,539	56,999
Operating Segments | Drilling Solutions
Revenue Recognition
Revenues	141,942	79,544	405,404	238,079
Operating Segments | Drilling Solutions | Lower 48
Revenue Recognition
Revenues	71,336	42,161	219,707	134,296
Operating Segments | Drilling Solutions | U.S. Offshore
Revenue Recognition
Revenues	2,843	1,969	6,902	7,429
Operating Segments | Drilling Solutions | Alaska
Revenue Recognition
Revenues	2,182	501	5,778	1,856
Operating Segments | Drilling Solutions | Canada
Revenue Recognition
Revenues	575	416	1,648	1,282
Operating Segments | Drilling Solutions | Middle East & Asia
Revenue Recognition
Revenues	34,549	13,321	87,006	37,363
Operating Segments | Drilling Solutions | Latin America
Revenue Recognition
Revenues	21,917	20,735	65,458	54,789
Operating Segments | Drilling Solutions | Europe, Africa & CIS
Revenue Recognition
Revenues	8,540	441	18,905	1,064
Operating Segments | Rig Technologies
Revenue Recognition
Revenues	35,597	45,809	116,289	145,511
Operating Segments | Rig Technologies | Lower 48
Revenue Recognition
Revenues	21,844	20,661	59,633	66,735
Operating Segments | Rig Technologies | Alaska
Revenue Recognition
Revenues			4
Operating Segments | Rig Technologies | Canada
Revenue Recognition
Revenues	1,177	936	4,584	4,051
Operating Segments | Rig Technologies | Middle East & Asia
Revenue Recognition
Revenues	12,207	19,067	48,176	57,748
Operating Segments | Rig Technologies | Latin America
Revenue Recognition
Revenues	306	3,361	2,580	12,064
Operating Segments | Rig Technologies | Europe, Africa & CIS
Revenue Recognition
Revenues	63	1,784	1,312	4,913
Eliminations & other
Revenue Recognition
Revenues	(16,420)	(16,915)	(44,472)	(44,454)
Eliminations & other | Other
Revenue Recognition
Revenues	$ (16,420)	$ (16,915)	$ (44,472)	$ (44,454)