Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue Recognition
Revenues	$ 2,930,126	$ 3,005,981	$ 2,653,766
Other
Revenue Recognition
Revenues	(59,836)	(91,422)	(84,608)
Operating Segments
Revenue Recognition
Revenues	2,989,962	3,097,403	2,738,374
Operating Segments | Lower 48
Revenue Recognition
Revenues	1,128,577	1,370,484	1,182,838
Operating Segments | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	117,196	129,365	133,201
Operating Segments | Alaska
Revenue Recognition
Revenues	50,884	38,870	65,880
Operating Segments | Canada
Revenue Recognition
Revenues	8,178	8,792	7,247
Operating Segments | Middle East & Asia
Revenue Recognition
Revenues	1,144,916	1,081,213	911,940
Operating Segments | Latin America
Revenue Recognition
Revenues	448,627	397,054	340,338
Operating Segments | Europe, Africa & CIS
Revenue Recognition
Revenues	91,584	71,625	96,930
Operating Segments | U.S. Drilling
Revenue Recognition
Revenues	1,028,122	1,207,629	1,100,614
Operating Segments | U.S. Drilling | Lower 48
Revenue Recognition
Revenues	872,432	1,052,274	913,932
Operating Segments | U.S. Drilling | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	107,253	118,218	122,536
Operating Segments | U.S. Drilling | Alaska
Revenue Recognition
Revenues	48,437	37,137	64,146
Operating Segments | International Drilling
Revenue Recognition
Revenues	1,446,092	1,345,249	1,199,282
Operating Segments | International Drilling | Middle East & Asia
Revenue Recognition
Revenues	1,002,350	943,285	805,944
Operating Segments | International Drilling | Latin America
Revenue Recognition
Revenues	360,092	341,470	309,320
Operating Segments | International Drilling | Europe, Africa & CIS
Revenue Recognition
Revenues	83,650	60,494	84,018
Operating Segments | Drilling Solutions
Revenue Recognition
Revenues	314,071	301,757	243,349
Operating Segments | Drilling Solutions | Lower 48
Revenue Recognition
Revenues	172,832	196,252	157,709
Operating Segments | Drilling Solutions | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	9,943	11,147	10,665
Operating Segments | Drilling Solutions | Alaska
Revenue Recognition
Revenues	2,447	1,733	1,734
Operating Segments | Drilling Solutions | Canada
Revenue Recognition
Revenues	1,847	1,522	1,521
Operating Segments | Drilling Solutions | Middle East & Asia
Revenue Recognition
Revenues	51,222	44,896	41,257
Operating Segments | Drilling Solutions | Latin America
Revenue Recognition
Revenues	74,225	44,422	29,515
Operating Segments | Drilling Solutions | Europe, Africa & CIS
Revenue Recognition
Revenues	1,555	1,785	948
Operating Segments | Rig Technologies
Revenue Recognition
Revenues	201,677	242,768	195,129
Operating Segments | Rig Technologies | Lower 48
Revenue Recognition
Revenues	83,313	121,958	111,197
Operating Segments | Rig Technologies | Canada
Revenue Recognition
Revenues	6,331	7,270	5,726
Operating Segments | Rig Technologies | Middle East & Asia
Revenue Recognition
Revenues	91,344	93,032	64,739
Operating Segments | Rig Technologies | Latin America
Revenue Recognition
Revenues	14,310	11,162	1,503
Operating Segments | Rig Technologies | Europe, Africa & CIS
Revenue Recognition
Revenues	6,379	9,346	11,964
Eliminations & other
Revenue Recognition
Revenues	(59,836)	(91,422)	(84,608)
Eliminations & other | Other
Revenue Recognition
Revenues	$ (59,836)	$ (91,422)	$ (84,608)