Joint Ventures (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025	Dec. 31, 2024
Joint Ventures
Redeemable noncontrolling interest			$ 489,129	$ 482,446
Assets:
Cash and cash equivalents			500,807	940,707	$ 396,470	$ 389,652
Accounts receivable			417,717	391,705
Other current assets			143,873	124,341
Property, plant and equipment, net			2,914,886	2,920,019
Other long-term assets			133,510	128,841
Total assets	[1]		4,385,636	4,789,657
Liabilities:
Accounts payable			322,837	300,467
Other liabilities			234,891	234,700
Total liabilities	[1]		2,944,107	3,352,014
SANAD
Joint Ventures
Cash contribution for capitalizing the joint venture upon formation		$ 20,000
Additional contribution amount		$ 394,000
Maturity period		25 years
SANAD
Joint Ventures
Redeemable noncontrolling interest			489,100	482,400
Assets:
Cash and cash equivalents			136,224	179,907
Accounts receivable			122,018	101,382
Other current assets			27,055	8,107
Property, plant and equipment, net			1,126,353	1,068,919
Other long-term assets			14,783	18,497
Total assets			1,426,433	1,376,812
Liabilities:
Accounts payable			101,370	102,543
Accrued liabilities			24,762	30,694
Other liabilities			65,813	62,306
Total liabilities			$ 191,945	$ 195,543

[1] The condensed consolidated balance sheets as of March 31, 2026 and December 31, 2025 include assets and liabilities of variable interest entities. See Note 4—Joint Ventures for additional information.