Condensed Consolidated Statements of Operations - USD ($) shares in Thousands	1 Months Ended	3 Months Ended		8 Months Ended	9 Months Ended
	Feb. 02, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues:
Total revenues	$ 45,928,000	$ 178,583,000	$ 135,976,000	$ 450,318,000	$ 521,797,000
Costs and expenses:
Cost of revenues (exclusive of depreciation, depletion, amortization and accretion)	29,773,000	124,973,000	87,074,000	296,420,000	318,013,000
Depreciation, depletion, amortization and accretion	8,358,000	59,208,000	28,163,000	158,256,000	89,052,000
General and administrative expenses	11,052,000	33,671,000	51,440,000	84,417,000	164,957,000
Restructuring and other expenses	1,270,000	4,712,000	25,746,000	20,533,000	27,033,000
Reduction in value of assets	0	0	2,929,000	0	19,451,000
Loss from operations	(4,525,000)	(43,981,000)	(59,376,000)	(109,308,000)	(96,709,000)
Other income (expense):
Interest income (expense), net	202,000	647,000	(24,800,000)	1,394,000	(74,698,000)
Reorganization items, net	335,560,000			0	0
Other expense	(2,105,000)	(6,224,000)	(1,399,000)	(6,499,000)	(4,810,000)
Income (loss) from continuing operations before income taxes	329,132,000	(49,558,000)	(85,575,000)	(114,413,000)	(176,217,000)
Income tax benefit (expense)	(60,003,000)	9,518,000	(1,815,000)	15,550,000	12,345,000
Net income (loss) from continuing operations	269,129,000	(40,040,000)	(87,390,000)	(98,863,000)	(163,872,000)
Loss from discontinued operations, net of income tax	(352,000)	(5,161,000)	(69,914,000)	(33,967,000)	(138,002,000)
Net income (loss)	$ 268,777,000	$ (45,201,000)	$ (157,304,000)	$ (132,830,000)	$ (301,874,000)
Income (loss) per share -basic and diluted
Net income (loss) from continuing operations		$ (2.00)	$ (5.89)
Loss from discontinued operations, net of income tax		(0.26)	(4.72)
Net income (loss)		$ (2.26)	$ (10.61)
Income (loss) per share -basic
Net income (loss) from continuing operations	$ 18.13			$ (4.94)	$ (11.08)
Loss from discontinued operations, net of income tax	(0.02)			(1.70)	(9.32)
Net income (loss)	18.11			(6.64)	(20.40)
Income (loss) per share - diluted:
Net income (loss) from continuing operations	18.06			(4.94)	(11.08)
Loss from discontinued operations, net of income tax	(0.03)			(1.70)	(9.32)
Net income (loss)	$ 18.03			$ (6.64)	$ (20.40)
Weighted-average shares outstanding - basic and diluted		19,999	14,827
Weighted-average shares outstanding - basic	14,845			19,997	14,795
Weighted-average shares outstanding - diluted	14,905			19,997	14,795
Services [Member]
Revenues:
Total revenues	$ 19,234,000	$ 85,667,000	$ 67,213,000	$ 209,133,000	$ 230,935,000
Costs and expenses:
Cost of revenues (exclusive of depreciation, depletion, amortization and accretion)	15,080,000	70,591,000	53,467,000	166,069,000	176,334,000
Depreciation, depletion, amortization and accretion	3,500,000	28,426,000	13,670,000	73,174,000	39,501,000
Rentals [Member]
Revenues:
Total revenues	14,434,000	59,420,000	41,351,000	143,972,000	182,436,000
Costs and expenses:
Cost of revenues (exclusive of depreciation, depletion, amortization and accretion)	5,876,000	26,011,000	21,743,000	60,960,000	71,977,000
Depreciation, depletion, amortization and accretion	2,627,000	19,717,000	8,814,000	50,558,000	31,080,000
Product Sales [Member]
Revenues:
Total revenues	12,260,000	33,496,000	27,412,000	97,213,000	108,426,000
Costs and expenses:
Cost of revenues (exclusive of depreciation, depletion, amortization and accretion)	8,817,000	28,371,000	11,864,000	69,391,000	69,702,000
Depreciation, depletion, amortization and accretion	$ 2,231,000	$ 11,065,000	$ 5,679,000	$ 34,524,000	$ 18,471,000