Discontinued Operation (Cash Flow Of Discontinued Operations) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		8 Months Ended	9 Months Ended
	Feb. 02, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other (gains) and losses, net		$ (13,397)	$ (1,097)	$ (732)	$ (30,263)
Pumpco Member
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Gain)/loss on sale of assets	$ (43)			0	0
Other (gains) and losses, net	0	$ (303)	$ 3,815	11,333	(5,496)
Depreciation, depletion, amortization and accretion	2,141			31,502	0
Proceeds from sales of assets	$ 486			$ 53,225	$ 18,782