Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue Recognition
Revenues	$ 779,139	$ 568,539
U.S. Drilling
Revenue Recognition
Revenues	350,652	217,583
International Drilling
Revenue Recognition
Revenues	320,048	279,030
Drilling Solutions
Revenue Recognition
Revenues	75,043	54,182
Rig Technologies
Revenue Recognition
Revenues	58,479	36,736
Operating segments | Lower 48
Revenue Recognition
Revenues	390,859	229,545
Operating segments | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	34,492	33,676
Operating segments | Alaska
Revenue Recognition
Revenues	13,326	14,622
Operating segments | Canada
Revenue Recognition
Revenues	2,227	1,415
Operating segments | Middle East & Asia
Revenue Recognition
Revenues	250,949	211,522
Operating segments | Latin America
Revenue Recognition
Revenues	92,437	74,824
Operating segments | Europe, Africa & CIS
Revenue Recognition
Revenues	19,932	21,927
Operating segments | U.S. Drilling
Revenue Recognition
Revenues	350,652	217,583
Operating segments | U.S. Drilling | Lower 48
Revenue Recognition
Revenues	306,118	172,797
Operating segments | U.S. Drilling | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	31,659	30,440
Operating segments | U.S. Drilling | Alaska
Revenue Recognition
Revenues	12,875	14,346
Operating segments | International Drilling
Revenue Recognition
Revenues	320,048	279,030
Operating segments | International Drilling | Middle East & Asia
Revenue Recognition
Revenues	222,952	190,696
Operating segments | International Drilling | Latin America
Revenue Recognition
Revenues	81,052	68,895
Operating segments | International Drilling | Europe, Africa & CIS
Revenue Recognition
Revenues	16,044	19,439
Operating segments | Drilling Solutions
Revenue Recognition
Revenues	75,043	54,182
Operating segments | Drilling Solutions | Lower 48
Revenue Recognition
Revenues	51,782	34,060
Operating segments | Drilling Solutions | U.S. Offshore Gulf Of Mexico
Revenue Recognition
Revenues	2,833	3,236
Operating segments | Drilling Solutions | Alaska
Revenue Recognition
Revenues	451	276
Operating segments | Drilling Solutions | Canada
Revenue Recognition
Revenues	358	436
Operating segments | Drilling Solutions | Middle East & Asia
Revenue Recognition
Revenues	10,268	10,026
Operating segments | Drilling Solutions | Latin America
Revenue Recognition
Revenues	9,071	5,929
Operating segments | Drilling Solutions | Europe, Africa & CIS
Revenue Recognition
Revenues	280	219
Operating segments | Rig Technologies
Revenue Recognition
Revenues	58,479	36,736
Operating segments | Rig Technologies | Lower 48
Revenue Recognition
Revenues	32,959	22,688
Operating segments | Rig Technologies | Canada
Revenue Recognition
Revenues	1,869	979
Operating segments | Rig Technologies | Middle East & Asia
Revenue Recognition
Revenues	17,729	10,800
Operating segments | Rig Technologies | Latin America
Revenue Recognition
Revenues	2,314
Operating segments | Rig Technologies | Europe, Africa & CIS
Revenue Recognition
Revenues	3,608	2,269
Eliminations & other
Revenue Recognition
Revenues	(25,083)	(18,992)
Eliminations & other | Other
Revenue Recognition
Revenues	$ (25,083)	$ (18,992)