Segment Information - Financial Information by Segment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) segment	Jun. 30, 2025 USD ($)
Segment Information
Number of reportable segments | segment			4
Operating revenues	$ 814,795	$ 832,788	$ 1,598,343	$ 1,568,974
Direct costs	(507,551)	(488,881)	(1,001,020)	(936,181)
Depreciation and amortization	(160,549)	(175,061)	(316,735)	(329,699)
Other segment expenses	(85,584)	(95,448)	(170,850)	(177,989)
Capital expenditures	158,223	198,536	317,534	349,045
Operating Segments
Segment Information
Operating revenues	833,081	847,218	1,627,165	1,597,026
Direct costs	(522,132)	(500,510)	(1,023,749)	(956,336)
Depreciation and amortization	(157,364)	(173,229)	(310,512)	(326,037)
Other segment expenses	(43,142)	(45,554)	(87,096)	(84,923)
Total adjusted operating income (loss)	110,443	127,925	205,808	229,730
Capital expenditures	159,498	197,764	317,624	345,747
Operating Segments | U.S. Drilling
Segment Information
Operating revenues	252,459	255,438	493,603	486,184
Direct costs	(151,713)	(147,288)	(297,787)	(279,216)
Depreciation and amortization	(63,120)	(62,033)	(126,561)	(123,145)
Other segment expenses	(6,665)	(6,329)	(13,670)	(12,436)
Total adjusted operating income (loss)	30,961	39,788	55,585	71,387
Capital expenditures	61,818	35,499	99,812	67,899
Operating Segments | International Drilling
Segment Information
Operating revenues	432,497	384,970	851,993	766,688
Direct costs	(283,390)	(247,946)	(562,247)	(496,386)
Depreciation and amortization	(84,673)	(81,607)	(165,197)	(164,135)
Other segment expenses	(18,574)	(19,366)	(37,932)	(37,158)
Total adjusted operating income (loss)	45,860	36,051	86,617	69,009
Capital expenditures	93,487	127,383	211,043	235,511
Operating Segments | Drilling Solutions
Segment Information
Operating revenues	110,640	170,283	216,862	263,462
Direct costs	(59,728)	(80,482)	(116,618)	(124,705)
Depreciation and amortization	(7,888)	(26,136)	(14,678)	(34,076)
Other segment expenses	(10,899)	(13,300)	(21,569)	(21,403)
Total adjusted operating income (loss)	32,125	50,365	63,997	83,278
Capital expenditures	3,820	34,414	5,964	41,586
Operating Segments | Rig Technologies
Segment Information
Operating revenues	37,485	36,527	64,707	80,692
Direct costs	(27,301)	(24,794)	(47,097)	(56,029)
Depreciation and amortization	(1,683)	(3,453)	(4,076)	(4,681)
Other segment expenses	(7,004)	(6,559)	(13,925)	(13,926)
Total adjusted operating income (loss)	1,497	1,721	(391)	6,056
Capital expenditures	373	468	805	751
Other items
Segment Information
Operating revenues	(18,286)	(14,430)	(28,822)	(28,052)
Direct costs	14,581	11,629	22,729	20,155
Depreciation and amortization	(3,185)	(1,832)	(6,223)	(3,662)
Other segment expenses	(42,442)	(49,894)	(83,754)	(93,066)
Capital expenditures	$ (1,275)	$ 772	$ (90)	$ 3,298