Fresh Start Accounting (Fresh Start II) (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	2 Months Ended	12 Months Ended
	Feb. 02, 2021	Feb. 02, 2021	Feb. 02, 2021	Mar. 31, 2021	Dec. 31, 2021	Feb. 03, 2021	Dec. 31, 2020
Reorganization Adjustments, Cash And Cash Equivalents [Abstract]
Payment of debtor in possession financing fees	$ (183)		$ (183)
Payment of professional fees at the Emergence Date			(2,649)
Payment of lease rejection damages classified as liabilities subject to compromise			(400)
Transfers from cash to restricted cash for Professional Fees Escrow and General Unsecured Creditors Escrow			(16,751)
Payment of debt issuance costs for the Credit Facility			(1,920)
Net change in cash and cash equivalents			(21,903)
Reorganization Adjustments, Restricted Cash [Abstract]
Restricted Cash and Cash Equivalents, Current	16,751	$ 16,751	16,751			$ 16,751
Debtor Reorganization Items, Accounts Receivables			11
Reorganization Adjustments, Intangibles [Abstract]
Write-off of deferred financing costs related to the Delayed-Draw Term Loan		(12,000)	(12,000)
Capitalization of debt issuance costs associated with the Credit Facility			1,920
Net change in intangibles and other long-term assets			(10,080)
Reorganization Adjustments, Accounts Payable [Abstract]
Payment of professional fees at the Emergence Date			(2,649)
Professional fees recognized and payable at the Emergence Date			1,949
Net change in accounts payable			(700)
Reorganization Adjustments, Accrued Liabilities [Abstract]
Payment of debtor in possession financing fees	(183)		(183)
Accrual of professional fees	6,500
Accrual for transfer taxes	1,900
Reinstatement of lease rejection liabilities to be settled post-emergence	700
Accrual of general unsecured claims against parent	125
Net change in accrued liabilities	9,042
Liabilities Subject To Compromise, Settled [Abstract]
Debt Instrument, Interest Rate, Stated Percentage					7.125%
Prepetition 7.125% and 7.750% notes including accrued interest and unpaid interest	1,335,794	1,335,794	1,335,794
Rejected lease liability claims	4,956	4,956	4,956
Allowed Class 6 General Unsecured Claims against Parent	232,022	232,022	232,022
Liabilities subject to compromise settled in accordance with the Plan	1,572,772	1,572,772	1,572,772				$ 1,335,794
Reorganization Adjustments, Gain (Loss) On Settlement[Abstract]
Accrued liabilities for lease rejection claims			(700)
Lease liabilities settled at Emergence Date			(1,614)
Payment to settle lease rejection claims			(400)
Proceeds from rights offering		963,000	963
Cash payout provided to cash opt-in noteholders			(952)
Cash Pool to settle general unsecured claims against the Predecessor			(125)
Issuance of Successor Class A common stock to prepetition noteholders (par value)			(193)
Additional paid-in capital (Successor)			(869,311)
Successor Class A common stock issued to cash opt-out noteholders in the rights offering (par value)			(7)
Additional paid-in capital (rights offering shares)			(33,175)
Gain on settlement of liabilities subject to compromise		667,258	667,258
Proceeds from rights offering		963,000	963
Cash payout provided to cash opt-in noteholders		$ 952,000
Debtor Reorganization Items, Discount Price		$ 1.31
Debtor Reorganization Items, Implied Discount		$ 32,200
Debtor Reorganization Items, Settlement Value Per Share		$ 46.82
Debtor Reorganization Items, Implied Share Price		$ 45.14
Debtor Reorganization Items, Cancellation Of Common Stock		$ 16
Reorganization Adjustments, APIC [Abstract]
Extinguishment of APIC related to Predecessor's outstanding equity interests		(2,758,812)
Extinguishment of RSUs for the Predecessor's incentive plan		988
Net change in Predecessor's additional paid-in capital		(2,757,824)
Reorganization Adjustments, APIC, Successor [Abstract]
Postconfirmation, Additional APIC, Common Shares		869,311
Postconfirmation, Additional APIC, Rights Offering		33,175
Postconfirmation, Change In APIC		902,486
Reorganization Adjustments, Retained Earnings [Abstract]
Gain on settlement of liabilities subject to compromise		667,258	667,258
Accrual for transfer tax		(1,900)
Extinguishment of RSUs for the Predecessor's incentive plan		(988)
Adjustment to net deferred tax liability taken to tax expense		(3,100)
Professional fees earned and payable as a result of consummation of the Plan of Reorganization		(8,449)
Debtor-in-Possession Financing, Amount Arranged		(12,000)	(12,000)
Debtor Reorganization Items, Extinguishment Of Equity		2,754,538
Net change in retained earnings		3,395,359
Debtor Reorganization Items, Change In Income Tax Receivable			170
Reorganization Adjustments, Change In Inventory And Other Current Assets [Abstract]
Fair value adjustment to other current assets			(1,070)
Net change in inventory and other current assets due to the adoption of fresh start accounting			11,067
Debtor Reorganization Items, Fair Value Adjustment, Assets Held For Sale			3,500	$ 16,500	20,400
Debtor Reorganization Items, Fair Value Adjustment, PPE					$ 139,600
Reorganization Adjustments, PPE [Abstract]
Property, Plant and Equipment			1,977,815	540,850
Less: Accumulated Depreciation and Depletion			1,576,552
Property, Plant and Equipment, net			401,263	540,850
Debtor Reorganization Items, Fair Value Adjustment, Right Of Use Assets			1,400
Debtor Reorganization Items, Change In Goodwill			138,900
Debtor Reorganization Items, Fair Value Adjustment, Intangible Assets	1,400
Reorganization Adjustments, Intangible Assets [Abstract]
Debtor Reorganization Items, Intangible Assets, Fair Value	4,912	4,912	4,912	6,286
Debtor Reorganization Items, Change In Other Long Term Assets			17,100
Debtor Reorganization Items, Fair Value Adjustment, Accrued Expenses			1,400
Debtor Reorganization Items, Fair Value Adjustment, Current ARO			4,000
Debtor Reorganization Items, Fair Value Adjustment, Non-Current ARO			34,600
Debtor Reorganization Items, Change In Deferred Tax Liabilities			70,400
Debtor Reorganization Items, Change In Realizable Deferred Tax Assets			18,800
Debtor Reorganization Items, Reclassification Of Deferred Revenue			45,800
Debtor Reorganization Items, FIN48			1,500
Debtor Reorganization Items, Reorganization Expense AOCI			(77,376)
Debtor Reorganization Items, Cumulative Adjustment			(53,251)
Debtor Reorganization Items, Elimination Of AOCI			(130,627)
Global [Member]
Reorganization Adjustments, Change In Inventory And Other Current Assets [Abstract]
Fair value adjustment to inventory		12,137
Patents
Reorganization Adjustments, Intangible Assets [Abstract]
Debtor Reorganization Items, Intangible Assets, Fair Value				2,120
TrademarksMember
Reorganization Adjustments, Intangible Assets [Abstract]
Debtor Reorganization Items, Intangible Assets, Fair Value	11	11	11	4,166
Customer relationships
Reorganization Adjustments, Intangible Assets [Abstract]
Debtor Reorganization Items, Intangible Assets, Fair Value	$ 4,901	$ 4,901	4,901
Land, Buildings and Improvements [Member]
Reorganization Adjustments, PPE [Abstract]
Property, Plant and Equipment			205,237	117,341
Machinery And Equipment [Member]
Reorganization Adjustments, PPE [Abstract]
Property, Plant and Equipment			1,103,501	290,593
Rental Services Equipment [Member]
Reorganization Adjustments, PPE [Abstract]
Property, Plant and Equipment			617,762	92,861
Other Capitalized Property Plant and Equipment [Member]
Reorganization Adjustments, PPE [Abstract]
Property, Plant and Equipment			46,403	35,143
Construction in Progress [Member]
Reorganization Adjustments, PPE [Abstract]
Property, Plant and Equipment			$ 4,912	$ 4,912
New Senior Unsecured Notes Due 2021 [Member]
Liabilities Subject To Compromise, Settled [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	7.125%	7.125%	7.125%		7.125%
Senior Unsecured Notes Due 2024 [Member]
Liabilities Subject To Compromise, Settled [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	7.75%	7.75%	7.75%		7.75%
Reorganization, Chapter 11, Fresh-Start Adjustment
Reorganization Adjustments, Restricted Cash [Abstract]
Restricted Cash and Cash Equivalents, Current	$ 16,751	$ 16,751	$ 16,751
Professional Fee Escrow | Reorganization, Chapter 11, Fresh-Start Adjustment
Reorganization Adjustments, Restricted Cash [Abstract]
Restricted Cash and Cash Equivalents, Current	16,626	16,626	16,626
General Unsecured Creditors Escrow | Reorganization, Chapter 11, Fresh-Start Adjustment
Reorganization Adjustments, Restricted Cash [Abstract]
Restricted Cash and Cash Equivalents, Current	$ 125	125	$ 125
Common Class A [Member]
Reorganization Adjustments, Changes In Common Stock [Abstract]
Issuance of successor Class A common stock to prepetition noteholders (par value)		193
Successor Class A common stock issued to cash opt-out noteholders in the rights offering (par value)		7
Net change in Successor Class A common stock		$ 200