Segment Information - Financial Information by Segment (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2026 USD ($) segment	Mar. 31, 2025 USD ($)
Segment Information
Number of reportable segments | segment	4
Operating revenues	$ 783,548	$ 736,186
Direct costs	(493,469)	(447,300)
Depreciation and amortization	(156,186)	(154,638)
Other segment expenses	(85,266)	(82,541)
Capital expenditures	159,312	150,511
Operating Segments
Segment Information
Operating revenues	794,084	749,808
Direct costs	(501,617)	(455,826)
Depreciation and amortization	(153,148)	(152,808)
Other segment expenses	(43,954)	(39,369)
Total adjusted operating income (loss)	95,365	101,805
Capital expenditures	158,127	147,983
Operating Segments | U.S. Drilling
Segment Information
Operating revenues	241,144	230,746
Direct costs	(146,074)	(131,928)
Depreciation and amortization	(63,441)	(61,112)
Other segment expenses	(7,005)	(6,107)
Total adjusted operating income (loss)	24,624	31,599
Capital expenditures	37,995	32,400
Operating Segments | International Drilling
Segment Information
Operating revenues	419,496	381,718
Direct costs	(278,857)	(248,440)
Depreciation and amortization	(80,524)	(82,528)
Other segment expenses	(19,358)	(17,792)
Total adjusted operating income (loss)	40,757	32,958
Capital expenditures	117,556	108,128
Operating Segments | Drilling Solutions
Segment Information
Operating revenues	106,222	93,179
Direct costs	(56,890)	(44,223)
Depreciation and amortization	(6,790)	(7,940)
Other segment expenses	(10,670)	(8,103)
Total adjusted operating income (loss)	31,872	32,913
Capital expenditures	2,144	7,172
Operating Segments | Rig Technologies
Segment Information
Operating revenues	27,222	44,165
Direct costs	(19,796)	(31,235)
Depreciation and amortization	(2,393)	(1,228)
Other segment expenses	(6,921)	(7,367)
Total adjusted operating income (loss)	(1,888)	4,335
Capital expenditures	432	283
Other items
Segment Information
Operating revenues	(10,536)	(13,622)
Direct costs	8,148	8,526
Depreciation and amortization	(3,038)	(1,830)
Other segment expenses	(41,312)	(43,172)
Capital expenditures	$ 1,185	$ 2,528