Segment Information - Financial Information by Segment (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2025 USD ($) segment	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Segment Information
Number of reportable segments | segment		4
Operating revenues	[1]	$ 3,184,693	$ 2,930,126	$ 3,005,981
Direct costs		(1,914,376)	(1,742,411)	(1,790,380)
Depreciation and amortization		(649,234)	(633,408)	(645,294)
Other segment expenses		(357,650)	(306,380)	(300,444)
Capital expenditures		694,921	609,727	552,908
Operating Segments
Segment Information
Operating revenues		3,241,728	2,989,962	3,097,403
Direct costs		(1,955,415)	(1,785,968)	(1,866,216)
Depreciation and amortization		(641,587)	(630,671)	(645,595)
Other segment expenses		(173,675)	(156,554)	(151,885)
Total adjusted operating income (loss)		471,051	416,769	433,707
Capital expenditures		692,071	593,551	540,870
Operating Segments | U.S. Drilling
Segment Information
Operating revenues		976,644	1,028,122	1,207,629
Direct costs		(569,204)	(554,527)	(647,251)
Depreciation and amortization		(250,534)	(272,559)	(271,310)
Other segment expenses		(25,534)	(24,755)	(26,715)
Total adjusted operating income (loss)		131,372	176,281	262,353
Capital expenditures		139,180	110,822	136,311
Operating Segments | International Drilling
Segment Information
Operating revenues		1,597,765	1,446,092	1,345,249
Direct costs		(1,028,942)	(941,118)	(892,182)
Depreciation and amortization		(327,834)	(328,924)	(347,786)
Other segment expenses		(76,866)	(68,192)	(64,413)
Total adjusted operating income (loss)		164,123	107,858	40,868
Capital expenditures		488,677	459,175	357,609
Operating Segments | Drilling Solutions
Segment Information
Operating revenues		513,283	314,071	301,757
Direct costs		(250,049)	(151,387)	(145,139)
Depreciation and amortization		(52,040)	(19,988)	(18,634)
Other segment expenses		(43,912)	(30,309)	(27,027)
Total adjusted operating income (loss)		167,282	112,387	110,957
Capital expenditures		62,490	17,787	25,721
Operating Segments | Rig Technologies
Segment Information
Operating revenues		154,036	201,677	242,768
Direct costs		(107,220)	(138,936)	(181,644)
Depreciation and amortization		(11,179)	(9,200)	(7,865)
Other segment expenses		(27,363)	(33,298)	(33,730)
Total adjusted operating income (loss)		8,274	20,243	19,529
Capital expenditures		1,724	5,767	21,229
Other items
Segment Information
Operating revenues		(57,035)	(59,836)	(91,422)
Direct costs		41,039	43,557	75,836
Depreciation and amortization		(7,647)	(2,737)	301
Other segment expenses		(183,975)	(149,826)	(148,559)
Capital expenditures		$ 2,850	$ 16,176	$ 12,038

[1] Includes related party revenues of $1.1 billion, $0.9 billion, and $0.8 billion for the years ended December 31, 2025, 2024 and 2023, respectively.