Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue Recognition
Revenues	$ 733,704	$ 779,139
Operating segments | Lower 48
Revenue Recognition
Revenues	300,888	390,859
Operating segments | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	31,551	34,492
Operating segments | Alaska
Revenue Recognition
Revenues	11,852	13,326
Operating segments | Canada
Revenue Recognition
Revenues	2,157	2,227
Operating segments | Middle East & Asia
Revenue Recognition
Revenues	281,368	250,949
Operating segments | Latin America
Revenue Recognition
Revenues	103,785	92,437
Operating segments | Europe, Africa & CIS
Revenue Recognition
Revenues	15,477	19,932
Operating segments | U.S. Drilling
Revenue Recognition
Revenues	271,989	350,652
Operating segments | U.S. Drilling | Lower 48
Revenue Recognition
Revenues	232,124	306,118
Operating segments | U.S. Drilling | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	28,694	31,659
Operating segments | U.S. Drilling | Alaska
Revenue Recognition
Revenues	11,171	12,875
Operating segments | International Drilling
Revenue Recognition
Revenues	349,359	320,048
Operating segments | International Drilling | Middle East & Asia
Revenue Recognition
Revenues	251,240	222,952
Operating segments | International Drilling | Latin America
Revenue Recognition
Revenues	84,300	81,052
Operating segments | International Drilling | Europe, Africa & CIS
Revenue Recognition
Revenues	13,819	16,044
Operating segments | Drilling Solutions
Revenue Recognition
Revenues	75,574	75,043
Operating segments | Drilling Solutions | Lower 48
Revenue Recognition
Revenues	44,704	51,782
Operating segments | Drilling Solutions | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	2,857	2,833
Operating segments | Drilling Solutions | Alaska
Revenue Recognition
Revenues	681	451
Operating segments | Drilling Solutions | Canada
Revenue Recognition
Revenues	434	358
Operating segments | Drilling Solutions | Middle East & Asia
Revenue Recognition
Revenues	10,955	10,268
Operating segments | Drilling Solutions | Latin America
Revenue Recognition
Revenues	15,715	9,071
Operating segments | Drilling Solutions | Europe, Africa & CIS
Revenue Recognition
Revenues	228	280
Operating segments | Rig Technologies
Revenue Recognition
Revenues	50,156	58,479
Operating segments | Rig Technologies | Lower 48
Revenue Recognition
Revenues	24,060	32,959
Operating segments | Rig Technologies | Canada
Revenue Recognition
Revenues	1,723	1,869
Operating segments | Rig Technologies | Middle East & Asia
Revenue Recognition
Revenues	19,173	17,729
Operating segments | Rig Technologies | Latin America
Revenue Recognition
Revenues	3,770	2,314
Operating segments | Rig Technologies | Europe, Africa & CIS
Revenue Recognition
Revenues	1,430	3,608
Eliminations & other
Revenue Recognition
Revenues	$ (13,374)	$ (25,083)