Discontinued Operations (Components Of Income (Loss) From Discontinued Operations) (Details) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Feb. 02, 2021	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation, depletion, amortization and accretion	$ 8,358	$ 219,859	$ 81,068	$ 98,060
General and administrative expenses	11,052	117,575	125,659	128,294
Other (gains) and losses, net	0	16,726	(6,549)	(29,134)
Net income (loss) from operations	(4,525)	(150,610)	241,821	203,414
Other income (expense)	(2,105)	(7,128)	(13,391)	(1,804)
Income (loss) from discontinued operations, net of income tax	(352)	(40,069)	426	(4,577)
Pumpco [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	10,719	90,682	0	0
Cost of services	10,398	85,191	0	0
Depreciation, depletion, amortization and accretion	2,141	31,502	0	0
General and administrative expenses	1,119	8,847	590	8,043
Other (gains) and losses, net	0	15,807	(1,129)	(2,249)
Net income (loss) from operations	(2,939)	(50,665)	539	(5,794)
Other income (expense)	2,485	188	0	0
Loss from discontinued operations before tax	(454)	(50,477)	539	(5,794)
Income tax benefit (expense)	102	10,408	(113)	1,217
Income (loss) from discontinued operations, net of income tax	$ (352)	$ (40,069)	$ 426	$ (4,577)