Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue Recognition
Revenues	$ 832,788	$ 734,798	$ 1,568,974	$ 1,468,502
Operating Segments
Revenue Recognition
Revenues	847,218	748,963	1,597,026	1,496,041
Operating Segments \| Lower 48
Revenue Recognition
Revenues	308,234	290,243	564,657	591,132
Operating Segments \| U.S. Offshore
Revenue Recognition
Revenues	32,706	30,953	59,246	62,504
Operating Segments \| Alaska
Revenue Recognition
Revenues	36,629	11,249	56,102	23,101
Operating Segments \| Canada
Revenue Recognition
Revenues	14,472	1,825	19,523	3,981
Operating Segments \| Middle East & Asia
Revenue Recognition
Revenues	301,632	281,885	598,850	563,253
Operating Segments \| Latin America
Revenue Recognition
Revenues	114,298	111,247	231,044	215,032
Operating Segments \| Europe, Africa & CIS
Revenue Recognition
Revenues	39,247	21,561	67,604	37,038
Operating Segments \| U.S. Drilling
Revenue Recognition
Revenues	255,438	259,723	486,184	531,712
Operating Segments \| U.S. Drilling \| Lower 48
Revenue Recognition
Revenues	190,087	220,797	378,494	452,921
Operating Segments \| U.S. Drilling \| U.S. Offshore
Revenue Recognition
Revenues	31,380	28,351	55,187	57,045
Operating Segments \| U.S. Drilling \| Alaska
Revenue Recognition
Revenues	33,971	10,575	52,503	21,746
Operating Segments \| International Drilling
Revenue Recognition
Revenues	384,970	356,733	766,688	706,092
Operating Segments \| International Drilling \| Canada
Revenue Recognition
Revenues	12,472		15,043
Operating Segments \| International Drilling \| Middle East & Asia
Revenue Recognition
Revenues	252,011	249,291	510,426	500,532
Operating Segments \| International Drilling \| Latin America
Revenue Recognition
Revenues	89,765	87,975	185,230	172,275
Operating Segments \| International Drilling \| Europe, Africa & CIS
Revenue Recognition
Revenues	30,722	19,467	55,989	33,285
Operating Segments \| Drilling Solutions
Revenue Recognition
Revenues	170,283	82,961	263,462	158,535
Operating Segments \| Drilling Solutions \| Lower 48
Revenue Recognition
Revenues	99,213	47,434	148,372	92,136
Operating Segments \| Drilling Solutions \| U.S. Offshore
Revenue Recognition
Revenues	1,326	2,602	4,059	5,459
Operating Segments \| Drilling Solutions \| Alaska
Revenue Recognition
Revenues	2,654	674	3,595	1,355
Operating Segments \| Drilling Solutions \| Canada
Revenue Recognition
Revenues	455	432	1,073	866
Operating Segments \| Drilling Solutions \| Middle East & Asia
Revenue Recognition
Revenues	34,823	13,086	52,458	24,042
Operating Segments \| Drilling Solutions \| Latin America
Revenue Recognition
Revenues	23,661	18,339	43,539	34,054
Operating Segments \| Drilling Solutions \| Europe, Africa & CIS
Revenue Recognition
Revenues	8,151	394	10,366	623
Operating Segments \| Rig Technologies
Revenue Recognition
Revenues	36,527	49,546	80,692	99,702
Operating Segments \| Rig Technologies \| Lower 48
Revenue Recognition
Revenues	18,934	22,012	37,791	46,075
Operating Segments \| Rig Technologies \| Alaska
Revenue Recognition
Revenues	4		4
Operating Segments \| Rig Technologies \| Canada
Revenue Recognition
Revenues	1,545	1,393	3,407	3,115
Operating Segments \| Rig Technologies \| Middle East & Asia
Revenue Recognition
Revenues	14,798	19,508	35,966	38,679
Operating Segments \| Rig Technologies \| Latin America
Revenue Recognition
Revenues	872	4,933	2,275	8,703
Operating Segments \| Rig Technologies \| Europe, Africa & CIS
Revenue Recognition
Revenues	374	1,700	1,249	3,130
Eliminations & other
Revenue Recognition
Revenues	(14,430)	(14,165)	(28,052)	(27,539)
Eliminations & other \| Other
Revenue Recognition
Revenues	$ (14,430)	$ (14,165)	$ (28,052)	$ (27,539)