Segment Information (Schedule Of Segment Reporting Information) (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
Segment Reporting Information [Line Items]
Total revenues	$ 45,928	$ 222,287	$ 178,583	$ 450,318	$ 644,857
Cost of revenues (exclusive of depreciation, depletion, amortization and accretion)	29,773	116,081	126,070	297,152	349,429
Depreciation, depletion, amortization and accretion	8,358	20,508	59,208	158,256	77,939
General and administrative expenses	11,052	31,841	33,671	84,417	94,090
Restructuring expense	1,270	1,223	4,712	20,533	4,441
Other (gains) and losses, net		(13,397)	1,097	(732)	(30,263)
Income (loss) from operations	(4,525)	66,031	(43,981)	(109,308)	149,221
Rentals [Member]
Segment Reporting Information [Line Items]
Total revenues	18,339	104,557	76,217	185,902	297,042
Cost of revenues (exclusive of depreciation, depletion, amortization and accretion)	7,839	33,638	32,638	75,433	101,250
Depreciation, depletion, amortization and accretion	4,271	12,554	41,641	111,781	46,099
General and administrative expenses	2,027	7,020	7,184	16,986	20,944
Other (gains) and losses, net		(4,946)	800	1,360	(4,886)
Income (loss) from operations	4,202	56,291	(6,046)	(19,658)	133,635
Well Services [Member]
Segment Reporting Information [Line Items]
Total revenues	27,589	117,730	102,366	264,416	347,815
Cost of revenues (exclusive of depreciation, depletion, amortization and accretion)	21,934	82,443	93,432	221,719	248,179
Depreciation, depletion, amortization and accretion	3,666	6,900	15,615	41,991	28,290
General and administrative expenses	4,111	10,220	13,445	35,029	32,823
Other (gains) and losses, net		(8,082)	(1,897)	(2,092)	(25,008)
Income (loss) from operations	(2,122)	26,249	(18,229)	(32,231)	63,531
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Depreciation, depletion, amortization and accretion	421	1,054	1,952	4,484	3,550
General and administrative expenses	4,914	14,601	13,042	32,402	40,323
Restructuring expense	1,270	1,223	4,712	20,533	4,441
Other (gains) and losses, net		(369)			(369)
Income (loss) from operations	$ (6,605)	$ (16,509)	$ (19,706)	$ (57,419)	$ (47,945)