Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Revenue Recognition
Revenues	$ 736,186	$ 733,704
Operating Segments
Revenue Recognition
Revenues	749,808	747,078
Operating Segments | Lower 48
Revenue Recognition
Revenues	256,420	300,888
Operating Segments | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	26,540	31,551
Operating Segments | Alaska
Revenue Recognition
Revenues	19,474	11,852
Operating Segments | Canada
Revenue Recognition
Revenues	5,049	2,157
Operating Segments | Middle East & Asia
Revenue Recognition
Revenues	297,222	281,368
Operating Segments | Latin America
Revenue Recognition
Revenues	116,745	103,785
Operating Segments | Europe, Africa & CIS
Revenue Recognition
Revenues	28,358	15,477
Operating Segments | U.S. Drilling
Revenue Recognition
Revenues	230,746	271,989
Operating Segments | U.S. Drilling | Lower 48
Revenue Recognition
Revenues	188,407	232,124
Operating Segments | U.S. Drilling | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	23,807	28,694
Operating Segments | U.S. Drilling | Alaska
Revenue Recognition
Revenues	18,532	11,171
Operating Segments | International Drilling
Revenue Recognition
Revenues	381,718	349,359
Operating Segments | International Drilling | Canada
Revenue Recognition
Revenues	2,570
Operating Segments | International Drilling | Middle East & Asia
Revenue Recognition
Revenues	258,418	251,240
Operating Segments | International Drilling | Latin America
Revenue Recognition
Revenues	95,464	84,300
Operating Segments | International Drilling | Europe, Africa & CIS
Revenue Recognition
Revenues	25,266	13,819
Operating Segments | Drilling Solutions
Revenue Recognition
Revenues	93,179	75,574
Operating Segments | Drilling Solutions | Lower 48
Revenue Recognition
Revenues	49,157	44,704
Operating Segments | Drilling Solutions | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	2,733	2,857
Operating Segments | Drilling Solutions | Alaska
Revenue Recognition
Revenues	942	681
Operating Segments | Drilling Solutions | Canada
Revenue Recognition
Revenues	617	434
Operating Segments | Drilling Solutions | Middle East & Asia
Revenue Recognition
Revenues	17,634	10,955
Operating Segments | Drilling Solutions | Latin America
Revenue Recognition
Revenues	19,879	15,715
Operating Segments | Drilling Solutions | Europe, Africa & CIS
Revenue Recognition
Revenues	2,217	228
Operating Segments | Rig Technologies
Revenue Recognition
Revenues	44,165	50,156
Operating Segments | Rig Technologies | Lower 48
Revenue Recognition
Revenues	18,856	24,060
Operating Segments | Rig Technologies | Canada
Revenue Recognition
Revenues	1,862	1,723
Operating Segments | Rig Technologies | Middle East & Asia
Revenue Recognition
Revenues	21,170	19,173
Operating Segments | Rig Technologies | Latin America
Revenue Recognition
Revenues	1,402	3,770
Operating Segments | Rig Technologies | Europe, Africa & CIS
Revenue Recognition
Revenues	875	1,430
Eliminations & other
Revenue Recognition
Revenues	(13,622)	(13,374)
Eliminations & other | Other
Revenue Recognition
Revenues	$ (13,622)	$ (13,374)