Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues:
Total revenues	$ 244,958	$ 226,073	$ 758,542	$ 618,014
Operating expenses:
Depreciation	27,785	26,069	83,596	78,714
General and administrative	16,649	16,320	53,058	52,805
Gain on disposition of assets	(955)	(73)	(4,102)	(4,802)
Total operating expenses	244,095	233,648	752,396	669,268
Operating income (loss)	863	(7,575)	6,146	(51,254)
Other income (expense):
Interest income	161	11	173	12
Interest expense, net of amounts capitalized	(13,774)	(10,364)	(38,569)	(28,792)
Foreign currency transaction (loss) gain	184	237	(3,057)	(285)
Loss on extinguishment of long-term debt	(6,529)	0	(6,529)	0
Other, net	(485)	172	(502)	1,487
Loss before income tax (expense) benefit	(19,580)	(17,519)	(42,338)	(78,832)
Income tax (expense) benefit	(125,436)	23,029	143,334	28,059
Net (loss) income	$ (145,016)	$ 5,510	$ 100,996	$ (50,773)
(Loss) earnings per share, Basic	$ (1.42)	$ 0.05	$ 0.99	$ (0.51)
(Loss) earnings per share, Diluted	$ (1.42)	$ 0.05	$ 0.97	$ (0.51)
Weighted-average shares outstanding, Basic	102,215	100,875	101,681	100,356
Weighted-average shares outstanding, Diluted	102,215	102,273	104,256	100,356
Contract Drilling [Member]
Revenues:
Total revenues	$ 224,929	$ 189,861	$ 704,302	$ 516,992
Operating expenses:
Contract drilling, excluding depreciation	181,954	155,567	568,390	442,619
Reimbursable Expenses [Member]
Revenues:
Total revenues	20,029	36,212	54,240	101,022
Operating expenses:
Contract drilling, excluding depreciation	$ 18,662	$ 35,765	$ 51,454	$ 99,932