Discontinued Operation (Cash Flow Of Discontinued Operations) (Details) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Feb. 02, 2021	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other (gains) and losses, net		$ 16,726	$ (29,134)
Pumpco Member
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Reduction in value of assets	$ 0	0	0	$ 117,335
(Gain)/loss on sale of assets	(43)	0	0	286
Other (gains) and losses, net	0	15,807	(2,249)	0
Depreciation, depletion, amortization and accretion	2,141	31,502	0	31,022
Proceeds from sales of assets	$ 486	$ 88,332	$ 20,110	$ 22,224