Segment Information (Schedule Of Segment Reporting Information) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	Feb. 02, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2022
Segment Reporting Information [Line Items]
Total revenues	$ 45,928	$ 224,640	$ 165,892	$ 271,735	$ 422,570
Cost of revenues (exclusive of depreciation, depletion, amortization and accretion)	29,773	120,968	103,045	171,082	233,348
Depreciation, depletion, amortization and accretion	8,358	23,346	59,018	99,048	57,431
General and administrative expenses	11,052	30,231	32,308	50,746	62,249
Restructuring expense	1,270	1,663	7,438	15,821	3,218
Other (gains) and losses, net		(18,013)	534	365	(16,866)
Income (loss) from operations	(4,525)	66,445	(36,451)	(65,327)	83,190
Rentals [Member]
Segment Reporting Information [Line Items]
Total revenues	18,339	103,729	67,237	109,685	192,485
Cost of revenues (exclusive of depreciation, depletion, amortization and accretion)	7,839	35,860	27,309	42,795	67,612
Depreciation, depletion, amortization and accretion	4,271	12,556	42,083	70,141	33,545
General and administrative expenses	2,027	6,559	6,352	9,803	13,924
Other (gains) and losses, net		195	725	560	60
Income (loss) from operations	4,202	48,559	(9,232)	(13,614)	77,344
Well Services [Member]
Segment Reporting Information [Line Items]
Total revenues	27,589	120,911	98,655	162,050	230,085
Cost of revenues (exclusive of depreciation, depletion, amortization and accretion)	21,934	85,108	75,736	128,287	165,736
Depreciation, depletion, amortization and accretion	3,666	9,662	15,213	26,376	21,390
General and administrative expenses	4,111	11,202	13,123	21,584	22,603
Other (gains) and losses, net		(18,208)	(191)	(195)	(16,926)
Income (loss) from operations	(2,122)	33,147	(5,226)	(14,002)	37,282
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Depreciation, depletion, amortization and accretion	421	1,128	1,722	2,531	2,496
General and administrative expenses	4,914	12,470	12,833	19,359	25,722
Restructuring expense	1,270	1,663	7,438	15,821	3,218
Income (loss) from operations	$ (6,605)	$ (15,261)	$ (21,993)	$ (37,711)	$ (31,436)