Segment Information - Financial Information by Segment (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($) segment	Mar. 31, 2024 USD ($)
Segment Information
Number of reportable segments | segment	4
Operating revenues	$ 736,186	$ 733,704
Direct costs	(447,300)	(437,077)
Depreciation and amortization	(154,638)	(157,685)
Other segment expenses	(82,541)	(75,614)
Total adjusted operating income (loss)	51,707	63,328
Capital expenditures	150,511	112,396
Operating Segments
Segment Information
Operating revenues	749,808	747,078
Direct costs	(455,826)	(447,131)
Depreciation and amortization	(152,808)	(157,382)
Other segment expenses	(39,369)	(38,458)
Total adjusted operating income (loss)	101,805	104,107
Capital expenditures	147,983	109,464
Operating Segments | U.S. Drilling
Segment Information
Operating revenues	230,746	271,989
Direct costs	(131,928)	(145,426)
Depreciation and amortization	(61,112)	(69,874)
Other segment expenses	(6,107)	(6,160)
Total adjusted operating income (loss)	31,599	50,529
Capital expenditures	32,400	29,943
Operating Segments | International Drilling
Segment Information
Operating revenues	381,718	349,359
Direct costs	(248,440)	(230,938)
Depreciation and amortization	(82,528)	(80,022)
Other segment expenses	(17,792)	(15,923)
Total adjusted operating income (loss)	32,958	22,476
Capital expenditures	108,128	73,584
Operating Segments | Drilling Solutions
Segment Information
Operating revenues	93,179	75,574
Direct costs	(44,223)	(36,508)
Depreciation and amortization	(7,940)	(4,894)
Other segment expenses	(8,103)	(7,279)
Total adjusted operating income (loss)	32,913	26,893
Capital expenditures	7,172	3,531
Operating Segments | Rig Technologies
Segment Information
Operating revenues	44,165	50,156
Direct costs	(31,235)	(34,259)
Depreciation and amortization	(1,228)	(2,592)
Other segment expenses	(7,367)	(9,096)
Total adjusted operating income (loss)	4,335	4,209
Capital expenditures	283	2,406
Other items
Segment Information
Operating revenues	(13,622)	(13,374)
Direct costs	8,526	10,054
Depreciation and amortization	(1,830)	(303)
Other segment expenses	(43,172)	(37,156)
Total adjusted operating income (loss)	(50,098)	(40,779)
Capital expenditures	$ 2,528	$ 2,932