Segment Information - Financial Information by Segment (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) segment	Sep. 30, 2024 USD ($)
Segment Information
Number of reportable segments | segment			4
Operating revenues	$ 818,190	$ 731,805	$ 2,387,164	$ 2,200,307
Direct costs	(491,828)	(431,705)	(1,428,009)	(1,309,007)
Depreciation and amortization	(160,347)	(159,234)	(490,046)	(477,060)
Other segment expenses	(90,054)	(78,380)	(268,043)	(230,510)
Capital expenditures	188,053	117,909	537,098	368,556
Operating Segments
Segment Information
Operating revenues	834,610	748,720	2,431,636	2,244,761
Direct costs	(503,795)	(444,159)	(1,460,131)	(1,341,599)
Depreciation and amortization	(158,384)	(159,158)	(484,421)	(475,793)
Other segment expenses	(44,667)	(39,535)	(129,590)	(116,458)
Total adjusted operating income (loss)	127,764	105,868	357,494	310,911
Capital expenditures	188,619	113,124	534,366	355,191
Operating Segments | U.S. Drilling
Segment Information
Operating revenues	249,836	254,773	736,020	786,485
Direct costs	(149,156)	(139,702)	(428,372)	(425,182)
Depreciation and amortization	(62,732)	(66,966)	(185,877)	(205,775)
Other segment expenses	(6,519)	(6,411)	(18,955)	(18,220)
Total adjusted operating income (loss)	31,429	41,694	102,816	137,308
Capital expenditures	39,238	25,778	107,137	87,597
Operating Segments | International Drilling
Segment Information
Operating revenues	407,235	368,594	1,173,923	1,074,686
Direct costs	(260,004)	(235,402)	(756,390)	(699,863)
Depreciation and amortization	(82,075)	(83,769)	(246,210)	(246,490)
Other segment expenses	(19,680)	(17,241)	(56,838)	(50,003)
Total adjusted operating income (loss)	45,476	32,182	114,485	78,330
Capital expenditures	132,678	81,903	368,189	251,163
Operating Segments | Drilling Solutions
Segment Information
Operating revenues	141,942	79,544	405,404	238,079
Direct costs	(69,186)	(37,353)	(193,891)	(116,645)
Depreciation and amortization	(10,684)	(5,080)	(44,760)	(15,123)
Other segment expenses	(12,090)	(7,880)	(33,493)	(22,868)
Total adjusted operating income (loss)	49,982	29,231	133,260	83,443
Capital expenditures	16,186	4,857	57,772	12,273
Operating Segments | Rig Technologies
Segment Information
Operating revenues	35,597	45,809	116,289	145,511
Direct costs	(25,449)	(31,702)	(81,478)	(99,909)
Depreciation and amortization	(2,893)	(3,343)	(7,574)	(8,405)
Other segment expenses	(6,378)	(8,003)	(20,304)	(25,367)
Total adjusted operating income (loss)	877	2,761	6,933	11,830
Capital expenditures	517	586	1,268	4,158
Other items
Segment Information
Operating revenues	(16,420)	(16,915)	(44,472)	(44,454)
Direct costs	11,967	12,454	32,122	32,592
Depreciation and amortization	(1,963)	(76)	(5,625)	(1,267)
Other segment expenses	(45,387)	(38,845)	(138,453)	(114,052)
Capital expenditures	$ (566)	$ 4,785	$ 2,732	$ 13,365