$NBR
NABORS INDUSTRIES LTD Stock $nbr

$nbr Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000155837022001407 Filed on February 18, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$543.5M	$2.018B	$443.4M
YoY Change	22.59%	-5.46%	-37.92%
Cost Of Revenue	$347.2M	$1.287B	$274.3M
YoY Change	26.59%	-3.46%	-37.12%
Gross Profit	$196.3M	$730.7M	$169.1M
YoY Change	16.09%	-8.78%	-39.17%
Gross Profit Margin	36.12%	36.21%	38.14%
Selling, General & Admin	$54.42M	$213.6M	$53.70M
YoY Change	1.34%	4.94%	-14.22%
% of Gross Profit	27.72%	29.23%	31.76%
Research & Development	$10.22M	$35.15M	$7.300M
YoY Change	40.04%	4.73%	-43.41%
% of Gross Profit	5.21%	4.81%	4.32%
Depreciation & Amortization	$168.0M	$693.4M	$208.7M
YoY Change	-19.52%	-18.78%	-7.57%
% of Gross Profit	85.56%	94.9%	123.42%
Operating Expenses	$233.9M	$35.15M	$271.8M
YoY Change	-13.96%	4.73%	-18.26%
Operating Profit	-$37.55M	-$80.79M	-$102.7M
YoY Change	-63.44%	-52.88%	88.44%
Interest Expense	-$45.83M	$171.5M	-$45.30M
YoY Change	1.16%	-16.87%	-9.22%
% of Operating Profit
Other Income/Expense, Net		-$53.42M
YoY Change		87.0%
Pretax Income	-$90.88M	-$488.1M	-$65.10M
YoY Change	39.61%	-30.82%	-74.78%
Income Tax	$18.39M	$55.62M	$38.80M
% Of Pretax Income
Net Earnings	-$113.7M	-$569.3M	-$108.2M
YoY Change	5.03%	-29.34%	-58.8%
Net Earnings / Revenue	-20.91%	-28.22%	-24.41%
Basic Earnings Per Share		-$76.58	-$16.45
Diluted Earnings Per Share	-$14.30M	-$76.58	-$16.45
COMMON SHARES
Basic Shares Outstanding	8.241M	7.605M	7.294M
Diluted Shares Outstanding		7.605M

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$991.5M	$991.5M	$482.0M
YoY Change	105.7%	105.7%	6.64%
Cash & Equivalents	$991.5M	$991.5M	$472.2M
Short-Term Investments	$17.00K	$17.00K	$10.00M
Other Short-Term Assets	$96.30M	$96.30M	$109.6M
YoY Change	-12.13%	-23.57%	-33.28%
Inventory	$126.4M	$126.4M	$160.6M
Prepaid Expenses
Receivables	$287.6M	$287.6M	$363.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.502B	$1.502B	$1.131B
YoY Change	32.73%	32.79%	-9.39%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.348B	$3.348B	$3.986B
YoY Change	-15.99%	-16.66%	-19.16%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$134.9M	$675.1M	$139.1M
YoY Change	-3.01%	90.69%	-43.74%
Total Long-Term Assets	$4.024B	$4.024B	$4.372B
YoY Change	-7.97%	-7.97%	-20.68%
TOTAL ASSETS
Total Short-Term Assets	$1.502B	$1.502B	$1.131B
Total Long-Term Assets	$4.024B	$4.024B	$4.372B
Total Assets	$5.525B	$5.525B	$5.503B
YoY Change	0.4%	0.41%	-18.6%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$253.7M	$253.7M	$220.9M
YoY Change	14.86%	14.82%	-25.15%
Accrued Expenses	$247.2M	$177.8M	$276.1M
YoY Change	-10.47%	-13.25%	-17.16%
Deferred Revenue	$42.90M		$42.80M
YoY Change	0.23%		-35.93%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due			$0.00
YoY Change
Total Short-Term Liabilities	$525.2M	$525.2M	$515.5M
YoY Change	1.89%	1.99%	-21.49%
LONG-TERM LIABILITIES
Long-Term Debt	$3.263B	$3.263B	$2.969B
YoY Change	9.91%	9.9%	-10.94%
Other Long-Term Liabilities	$340.3M	$340.3M	$318.0M
YoY Change	7.02%	7.03%	8.85%
Total Long-Term Liabilities	$3.603B	$3.603B	$3.287B
YoY Change	9.63%	9.62%	-9.34%
TOTAL LIABILITIES
Total Short-Term Liabilities	$525.2M	$525.2M	$515.5M
Total Long-Term Liabilities	$3.603B	$3.603B	$3.287B
Total Liabilities	$4.131B	$4.935B	$3.804B
YoY Change	8.61%	13.39%	-11.23%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.538B		-$946.1M
YoY Change	62.56%		802.98%
Common Stock	$3.455B		$3.424B
YoY Change	0.9%		0.32%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.316B		$1.316B
YoY Change	0.0%		0.13%
Treasury Stock Shares	$1.090M		$1.090M
Shareholders Equity	$590.7M	$590.7M	$1.151B
YoY Change
Total Liabilities & Shareholders Equity	$5.525B	$5.525B	$5.503B
YoY Change	0.4%	0.41%	-18.6%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	-$113.7M	-$569.3M	-$108.2M
YoY Change	5.03%	-29.34%	-58.8%
Depreciation, Depletion And Amortization	$168.0M	$693.4M	$208.7M
YoY Change	-19.52%	-18.78%	-7.57%
Cash From Operating Activities	$102.3M	$428.8M	$101.9M
YoY Change	0.39%	22.59%	-59.85%
INVESTING ACTIVITIES
Capital Expenditures	-$54.14M	$234.0M	-$42.40M
YoY Change	27.68%	19.7%	-30.61%
Acquisitions
YoY Change
Other Investing Activities	$2.001M	$15.22M	$6.300M
YoY Change	-68.24%	-49.45%	-83.85%
Cash From Investing Activities	-$52.14M	-$117.2M	-$36.20M
YoY Change	44.02%	-29.15%	63.06%
FINANCING ACTIVITIES
Cash Dividend Paid		$7.380M
YoY Change		-67.26%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net		$187.0M
YoY Change		-86.59%
Cash From Financing Activities	450.6M	488.4M	-99.50M
YoY Change	-552.86%	-430.01%	-47.58%
NET CHANGE
Cash From Operating Activities	102.3M	428.8M	101.9M
Cash From Investing Activities	-52.14M	-117.2M	-36.20M
Cash From Financing Activities	450.6M	488.4M	-99.50M
Net Change In Cash	500.7M	798.2M	-33.80M
YoY Change	-1581.51%	2301.27%	-180.86%
FREE CASH FLOW
Cash From Operating Activities	$102.3M	$428.8M	$101.9M
Capital Expenditures	-$54.14M	$234.0M	-$42.40M
Free Cash Flow	$156.4M	$194.7M	$144.3M
YoY Change	8.41%	26.26%	-54.18%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssetsNoncurrent
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssetsNoncurrent
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OperatingLeaseLiabilityCurrent
CY2021Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OperatingLeaseLiabilityCurrent
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001163739
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	us-gaap	Investment Income Net InvestmentIncomeNet	1438000
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	20000
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	7000
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-12000
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2020Q2	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	0.02
CY2021Q2	nbr	Number Of Shares Forfeitable If Certain Milestones Not Met In Connection With Acquisition Of Assets NumberOfSharesForfeitableIfCertainMilestonesNotMetInConnectionWithAcquisitionOfAssets	0.40
CY2021Q2	nbr	Class Of Warrant Or Right Number Of Additional Securities Called By Each Warrant Or Right ClassOfWarrantOrRightNumberOfAdditionalSecuritiesCalledByEachWarrantOrRight	0.333
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-32657
CY2021	dei	Entity Registrant Name EntityRegistrantName	NABORS INDUSTRIES LTD
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	D0
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	Crown House
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	Second Floor
CY2021	dei	Entity Address Address Line3 EntityAddressAddressLine3	4 Par-la-Ville Road
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Hamilton
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	HM08
CY2021	dei	Entity Address Country EntityAddressCountry	BM
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	98-0363970
CY2021	dei	City Area Code CityAreaCode	441
CY2021	dei	Local Phone Number LocalPhoneNumber	292-1510
CY2021	dei	Security12b Title Security12bTitle	Common shares, $.05 par value per share
CY2021	dei	Trading Symbol TradingSymbol	NBR
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	860073547
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CY2021	dei	Auditor Firm AuditorFirmId	238
CY2021	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2021	dei	Auditor Location AuditorLocation	Houston, Texas
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CY2020	us-gaap	Costs And Expenses CostsAndExpenses	2841048000
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	3642518000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-488089000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-705567000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-588922000
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	66327000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-7430000
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	55625000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10706000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	64716000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	35951000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	55621000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	57286000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	91576000
CY2021	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-543710000
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-762853000
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-680498000
CY2021	us-gaap	Profit Loss ProfitLoss	-543690000
CY2020	us-gaap	Profit Loss ProfitLoss	-762846000
CY2019	us-gaap	Profit Loss ProfitLoss	-680510000
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	25582000
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	42795000
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	22375000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-569272000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-805641000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-702885000
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3653000
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14611000
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	17244000
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-572925000
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-820252000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-720129000
CY2021	nbr	Income Loss From Continuing Operation Available To Common Stockholders IncomeLossFromContinuingOperationAvailableToCommonStockholders	-572945000
CY2020	nbr	Income Loss From Continuing Operation Available To Common Stockholders IncomeLossFromContinuingOperationAvailableToCommonStockholders	-820259000
CY2019	nbr	Income Loss From Continuing Operation Available To Common Stockholders IncomeLossFromContinuingOperationAvailableToCommonStockholders	-720117000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-720129000
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-76.58
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-118.69
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-105.39
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-76.58
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-118.69
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-105.39
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-76.58
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-118.69
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-105.39
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-76.58
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-118.69
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-105.39
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7605000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7059000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7032000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7605000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7059000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7032000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-569272000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-805641000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-702885000
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent	2230000
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent	435000
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent	16943000
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	1692000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-210000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-217000
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	160000
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	567000
CY2021	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	538000
CY2020	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	805000
CY2019	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	17727000
CY2021	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	48000
CY2020	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	141000
CY2019	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	190000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	490000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	664000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	17537000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-568782000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-804977000
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-685348000
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	25582000
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	42795000
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	22375000
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	55000
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	25582000
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	42795000
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	22430000
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-543200000
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-762182000
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-662918000
CY2021	us-gaap	Profit Loss ProfitLoss	-543690000
CY2020	us-gaap	Profit Loss ProfitLoss	-762846000
CY2019	us-gaap	Profit Loss ProfitLoss	-680510000
CY2021	nbr	Depreciation And Amortization Including Discontinued Operations DepreciationAndAmortizationIncludingDiscontinuedOperations	693382000
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-13106000
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	12143000
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-142826000
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-142857000
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	5140000
CY2020	nbr	Depreciation And Amortization Including Discontinued Operations DepreciationAndAmortizationIncludingDiscontinuedOperations	853697000
CY2019	nbr	Depreciation And Amortization Including Discontinued Operations DepreciationAndAmortizationIncludingDiscontinuedOperations	876103000
CY2021	nbr	Deferred Income Tax Expense Benefit Including Discontinued Operations DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations	-10711000
CY2020	nbr	Deferred Income Tax Expense Benefit Including Discontinued Operations DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations	64717000
CY2019	nbr	Deferred Income Tax Expense Benefit Including Discontinued Operations DeferredIncomeTaxExpenseBenefitIncludingDiscontinuedOperations	35894000
CY2021	nbr	Impairments And Other Charges ImpairmentsAndOtherCharges	72497000
CY2020	nbr	Impairments And Other Charges ImpairmentsAndOtherCharges	318582000
CY2019	nbr	Impairments And Other Charges ImpairmentsAndOtherCharges	213404000
CY2021	nbr	Amortization Of Debt Discount And Deferred Financing Costs AmortizationOfDebtDiscountAndDeferredFinancingCosts	21359000
CY2020	nbr	Amortization Of Debt Discount And Deferred Financing Costs AmortizationOfDebtDiscountAndDeferredFinancingCosts	31238000
CY2019	nbr	Amortization Of Debt Discount And Deferred Financing Costs AmortizationOfDebtDiscountAndDeferredFinancingCosts	30931000
CY2021	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	13423000
CY2020	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	228274000
CY2019	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	11468000
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-23864000
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-64365000
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-40346000
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-327000
CY2020	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-4286000
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	1257000
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-2515000
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	18194000
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	20626000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	19362000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	24638000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	24660000
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-4800000
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-13133000
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-20876000
CY2021	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-25582000
CY2020	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-42795000
CY2019	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-22375000
CY2019	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-5000
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-971000
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	770000
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-667000
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-71805000
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-67502000
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-276685000
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-32037000
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-6188000
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	18695000
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-14166000
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-38672000
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-5157000
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-17914000
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-20830000
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-933000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-355856000
CY2021	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	700000000
CY2020	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	1000000000
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	186958000
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1394043000
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	455360000
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	16339000
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	28112000
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-4857000
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	34930000
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	2163000
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	8117000
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	428776000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	349761000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	684558000
CY2021	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	67000
CY2020	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	91000
CY2019	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	4323000
CY2021	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	11398000
CY2020	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	2760000
CY2019	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	18849000
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	2929000
CY2021	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	3600000
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	234040000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	195523000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	427741000
CY2021	nbr	Proceeds From Sale Of Productive Assets And Proceeds From Insurance Settlement ProceedsFromSaleOfProductiveAssetsAndProceedsFromInsuranceSettlement	124301000
CY2020	nbr	Proceeds From Sale Of Productive Assets And Proceeds From Insurance Settlement ProceedsFromSaleOfProductiveAssetsAndProceedsFromInsuranceSettlement	27397000
CY2019	nbr	Proceeds From Sale Of Productive Assets And Proceeds From Insurance Settlement ProceedsFromSaleOfProductiveAssetsAndProceedsFromInsuranceSettlement	60288000
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	15217000
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-117225000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-165457000
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1767000
CY2021	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1025000000
CY2020	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1552500000
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1050000000
CY2021	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-1237500000
CY2020	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-1235000000
CY2019	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-865000000
CY2019	nbr	Proceeds From Payments For Short Term Borrowings Other Than Credit Facility ProceedsFromPaymentsForShortTermBorrowingsOtherThanCreditFacility	-561000
CY2020	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	1731000
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	7380000
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	22538000
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	49583000
CY2021	nbr	Proceeds From Redeemable Noncontrolling Interest Distribution ProceedsFromRedeemableNoncontrollingInterestDistribution	-58524000
CY2021	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	3795000
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	5083000
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	4552000
CY2021	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	276000000
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2083000
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-13994000
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4750000
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	488421000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-148001000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-331573000
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-1742000
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-3061000
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-6171000
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	798230000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	33242000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-9042000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	475280000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	442038000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	451080000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	1273510000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	475280000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	442038000
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	472246000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	435990000
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	447766000
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	3034000
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	6048000
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	3314000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	475280000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	442038000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	451080000
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	991471000
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	472246000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	435990000
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	282039000
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	3034000
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	6048000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	1273510000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	475280000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	442038000
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2750326000
CY2019	us-gaap	Profit Loss ProfitLoss	-680510000
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.00
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	14953000
CY2019	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	3.00
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	17245000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	17592000
CY2019	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	24659000
CY2019	nbr	Noncontrolling Interest Contribution NoncontrollingInterestContribution	-4552000
CY2019	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	20534000
CY2019	us-gaap	Stockholders Equity Other StockholdersEquityOther	4618000
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2050165000
CY2020	us-gaap	Profit Loss ProfitLoss	-762846000
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.50
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	3632000
CY2020	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	3.00
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14610000
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	13859000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	664000
CY2020	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	24638000
CY2020	nbr	Noncontrolling Interest Contribution NoncontrollingInterestContribution	-5082000
CY2020	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	17442000
CY2020	us-gaap	Stockholders Equity Other StockholdersEquityOther	1188000
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1256808000
CY2021	us-gaap	Profit Loss ProfitLoss	-543690000
CY2021	nbr	Deferred Dividend For Earned Equity Instruments Other Than Options DeferredDividendForEarnedEquityInstrumentsOtherThanOptions	75000
CY2021	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	0.75
CY2021	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3653000
CY2021	nbr	Stock And Warrants Issued During Period Value Warrants StockAndWarrantsIssuedDuringPeriodValueWarrants	2719000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	490000
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	12872000
CY2021	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	19361000
CY2021	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	-5000
CY2021	nbr	Noncontrolling Interest Contribution NoncontrollingInterestContribution	-3793000
CY2021	nbr	Noncontrolling Interest Increase From Contributions And Other NoncontrollingInterestIncreaseFromContributionsAndOther	6298000
CY2021	nbr	Spc Warrants Issued To Public Holders Net Of Issuance Costs Value SPCWarrantsIssuedToPublicHoldersNetOfIssuanceCostsValue	13480000
CY2021	nbr	Deemed Dividends To Spc Public Shareholders DeemedDividendsToSPCPublicShareholders	25433000
CY2021	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	9445000
CY2021	us-gaap	Stockholders Equity Other StockholdersEquityOther	1558000
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	718938000
CY2021	us-gaap	Nature Of Operations NatureOfOperations	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><b style="font-weight:bold;">Note 1 Nature of Operations</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;">Unless the context requires otherwise, references in this annual report to “we,” “us,” “our,” “the Company,” or “Nabors” mean Nabors Industries Ltd., together with our subsidiaries where the context requires. References in this annual report to “Nabors Delaware” mean Nabors Industries, Inc., a wholly owned subsidiary of Nabors.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt;"><span style="visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;">Our business is comprised of our global land-based and offshore drilling rig operations and other rig related services and technologies. These services and technologies include tubular running services, wellbore placement solutions, directional drilling, measurement-while-drilling (“MWD”), logging-while-drilling (“LWD”) systems and services, equipment manufacturing, rig instrumentation and drilling optimization software.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;"><span style="visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;"><span style="white-space:pre-wrap;">In 2021, we co-sponsored a special purpose acquisition company (“SPAC”), Nabors Energy Transition Corporation (“NETC”), which has the sole purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses with significant growth potential and to create value by supporting the company in the public markets. The business acquisition will operate in an industry that will benefit from the experience, expertise and operating skills of Nabors. NETC trades on the New York Stock Exchange under the symbols “NETC”, “NETC.U” and “NETC.W.”</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt;"><span style="visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;">The outbreak of the novel coronavirus (“COVID-19”), together with actions by large oil and natural gas producing countries, led to decreases in commodity prices, specifically oil and natural gas prices, resulting from oversupply and demand weakness. These price decreases caused significant disruptions and volatility in the global marketplace during 2020. Lower prices and the resulting weakness in demand for our services, negatively affected our results of operations and cash flows and uncertainty remains regarding the length and impact of COVID-19 on the energy industry and the outlook for our business.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt;">The consolidated financial statements and related footnotes are presented in accordance with U.S. GAAP.</p>
CY2021Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	105638000
CY2020Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	133424000
CY2021Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	1368000
CY2020Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	3452000
CY2021Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	19442000
CY2020Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	23709000
CY2020	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	83624000
CY2019	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	47731000
CY2020	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	24543000
CY2021Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	21900000
CY2020Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	23500000
CY2021Q4	us-gaap	Inventory Net InventoryNet	126448000
CY2020Q4	us-gaap	Inventory Net InventoryNet	160585000
CY2021	nbr	Percentage Of Growth Rate Used To Calculate Terminal Value Of Each Reporting Unit PercentageOfGrowthRateUsedToCalculateTerminalValueOfEachReportingUnit	0.02
CY2019Q4	us-gaap	Goodwill Goodwill	28380000
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	27798000
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-582000
CY2020Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	27800000
CY2021Q4	us-gaap	Assets Held In Trust Noncurrent AssetsHeldInTrustNoncurrent	281500000
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-style:italic;font-weight:bold;">Use of Estimates</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:8pt;font-style:italic;font-weight:bold;visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;">The preparation of financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities, the disclosures of contingent assets and liabilities at the balance sheet date and the amounts of revenues and expenses </p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">recognized during the reporting period. Actual results could differ from such estimates. Areas where critical accounting estimates are made by management include:</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt;"><span style="visibility:hidden;"></span></p><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"/><td style="font-family:'Times New Roman','Times','serif';font-size:10pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">●</td><td style="padding:0pt;"><span style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:normal;">depreciation of property, plant and equipment;</span></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0pt 54pt;"><span style="margin-left:0pt;visibility:hidden;"></span></p><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"/><td style="font-family:'Times New Roman','Times','serif';font-size:10pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">●</td><td style="padding:0pt;"><span style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:normal;">impairment of long-lived assets;</span></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0pt 54pt;"><span style="margin-left:0pt;visibility:hidden;"></span></p><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"/><td style="font-family:'Times New Roman','Times','serif';font-size:10pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">●</td><td style="padding:0pt;"><span style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:normal;">impairment of goodwill and intangible assets;</span></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"/><td style="font-family:'Times New Roman','Times','serif';font-size:10pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">●</td><td style="padding:0pt;"><span style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:normal;">income taxes;</span></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0pt 54pt;"><span style="margin-left:0pt;visibility:hidden;"></span></p><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"/><td style="font-family:'Times New Roman','Times','serif';font-size:10pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">●</td><td style="padding:0pt;"><span style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:normal;">litigation and self-insurance reserves; and</span></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 0pt 54pt;"><span style="margin-left:0pt;visibility:hidden;"></span></p><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:10pt;margin-bottom:0pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"/><td style="font-family:'Times New Roman','Times','serif';font-size:10pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">●</td><td style="padding:0pt;"><span style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:normal;">fair value of assets acquired and liabilities assumed.</span></td></tr></table>
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	27798000
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	155973000
CY2021	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	6228000
CY2020	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	19070000
CY2019	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	11447000
CY2021	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	1325000
CY2020	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	19590000
CY2019	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	43220000
CY2021	nbr	Asset Impairment And Other Charges AssetImpairmentAndOtherCharges	66731000
CY2020	nbr	Asset Impairment And Other Charges AssetImpairmentAndOtherCharges	410631000
CY2019	nbr	Asset Impairment And Other Charges AssetImpairmentAndOtherCharges	301939000
CY2021	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	6200000
CY2020	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	83600000
CY2020	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	24500000
CY2020	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	19100000
CY2020	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	19600000
CY2019	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	47700000
CY2019	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	11400000
CY2019	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	43200000
CY2021Q4	nbr	Fair Value Transfers Between Level1 And Level2 FairValueTransfersBetweenLevel1AndLevel2	0
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	9500000
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	19200000
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	24600000
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	24700000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	12300912000
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	13112640000
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	8968414000
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	9126933000
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3332498000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3985707000
CY2021	us-gaap	Depreciation Depreciation	689200000
CY2020	us-gaap	Depreciation Depreciation	851800000
CY2019	us-gaap	Depreciation Depreciation	869600000
CY2021	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	153900000
CY2020	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	154200000
CY2019	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	248600000
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	700000
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	700000
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1500000
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3293600000
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2990971000
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	30805000
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	22270000
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3262795000
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2968701000
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	50485000
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	567362000
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	287302000
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	766540000
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	559978000
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1089609000
CY2021Q4	nbr	Long Term Debt Principal Maturities LongTermDebtPrincipalMaturities	3321276000
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	13400000
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	69200000
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	11500000
CY2021Q4	nbr	Number Of Line Of Credit Facility NumberOfLineOfCreditFacility	18
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-488089000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-705567000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-588922000
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1905000
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-39268000
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1210000
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	60318000
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	33858000
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	54097000
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	7914000
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-2020000
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	318000
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	66327000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-7430000
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	55625000
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4669000
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	67909000
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	58157000
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-3608000
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4992000
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-25428000
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2429000
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1799000
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	3222000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10706000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	64716000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	35951000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	55621000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	57286000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	91576000
CY2021	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	23395000
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	62751000
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	54060000
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	8276000
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-9759000
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	32869000
CY2021	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	26266000
CY2020	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	861000
CY2019	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	1107000
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-2316000
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3433000
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3540000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	55621000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	57286000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	91576000
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.114
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.081
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.155
CY2021	nbr	Income Tax Reconciliation Increase In Tax Expense Attributable To Uncertain Tax Position IncomeTaxReconciliationIncreaseInTaxExpenseAttributableToUncertainTaxPosition	26300000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1887000
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	3676333000
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	3618227000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	822000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1594000
CY2021Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	775000
CY2020Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	3878000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	84624000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	84502000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	2909000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	2086000
CY2021Q4	nbr	Deferred Tax Assets Depreciation And Amortization For Tax In Excess Of Book Expense DeferredTaxAssetsDepreciationAndAmortizationForTaxInExcessOfBookExpense	118151000
CY2020Q4	nbr	Deferred Tax Assets Depreciation And Amortization For Tax In Excess Of Book Expense DeferredTaxAssetsDepreciationAndAmortizationForTaxInExcessOfBookExpense	44837000
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	131223000
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	110003000
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	4014837000
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	3865127000
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3754207000
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3602144000
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	260630000
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	262983000
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	4772000
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	17388000
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	4772000
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	17388000
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	255858000
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	245595000
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	258631000
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	247171000
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	2773000
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	1576000
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	255858000
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	245595000
CY2021Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	3500000000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	26704000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	25770000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	25711000
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	19760000
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1003000
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	476000
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	953000
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	860000
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	84000
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	45988000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	26704000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	25770000
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	46000000.0
CY2021	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	14400000
CY2020	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	7600000
CY2019	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	7700000
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	6900000
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	-600000
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	800000
CY2021Q4	us-gaap	Capital Units Authorized CapitalUnitsAuthorized	57000000.0
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	32000000.0
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.05
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	25000000.0
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2021Q3	us-gaap	Stock Issued During Period Shares Purchase Of Assets StockIssuedDuringPeriodSharesPurchaseOfAssets	147974
CY2021Q3	us-gaap	Stock Issued During Period Value Purchase Of Assets StockIssuedDuringPeriodValuePurchaseOfAssets	12900000
CY2021Q3	nbr	Number Of Shares Forfeitable If Certain Milestones Not Met In Connection With Acquisition Of Assets NumberOfSharesForfeitableIfCertainMilestonesNotMetInConnectionWithAcquisitionOfAssets	71280
CY2019	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	0
CY2020	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	0
CY2021	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	0
CY2021Q2	nbr	Class Of Warrant Or Right Issued ClassOfWarrantOrRightIssued	3200000
CY2021Q2	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Each Warrant Or Right ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight	1
CY2021Q2	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	166.66667
CY2021Q2	nbr	Multiplying Factor For Exercise Of Warrants MultiplyingFactorForExerciseOfWarrants	3
CY2021Q2	nbr	Minimum Percentage Which Stock Price Before Exercise Must Exceed Volume Weighted Average Stock Price MinimumPercentageWhichStockPriceBeforeExerciseMustExceedVolumeWeightedAverageStockPrice	0.06
CY2021Q2	nbr	Anti Dilution Adjustment Shares Price Percentage Of Market Price AntiDilutionAdjustmentSharesPricePercentageOfMarketPrice	0.95
CY2021Q2	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	2700000
CY2021Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	100000
CY2021	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-2600000
CY2021	nbr	Premiums Paid Related To Related Party Insurance Agreements PremiumsPaidRelatedToRelatedPartyInsuranceAgreements	0
CY2021	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	617500000
CY2020	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	612700000
CY2019	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	672900000
CY2021Q4	us-gaap	Accounts Receivable Related Parties Current AccountsReceivableRelatedPartiesCurrent	99300000
CY2020Q4	us-gaap	Accounts Receivable Related Parties Current AccountsReceivableRelatedPartiesCurrent	90400000
CY2021	nbr	Minimum Period Of Operating Lease MinimumPeriodOfOperatingLease	P30D
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	9300000
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	12400000
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	15900000
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-837826000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-741110000
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	20000
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	7000
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-12000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7605000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7059000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7032000
CY2021Q4	nbr	Guarantee Obligations Maximum Exposure In Year One GuaranteeObligationsMaximumExposureInYearOne	34726000
CY2021Q4	nbr	Guarantee Obligations Maximum Exposure In Year Two GuaranteeObligationsMaximumExposureInYearTwo	13000000
CY2021Q4	nbr	Guarantee Obligations Maximum Exposure In Year Three GuaranteeObligationsMaximumExposureInYearThree	8488000
CY2021Q4	nbr	Guarantee Obligations Maximum Exposure After Year Three GuaranteeObligationsMaximumExposureAfterYearThree	35957000
CY2021Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	92171000
CY2021	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-543710000
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-762853000
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-680498000
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	25582000
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	42795000
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	22375000
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3653000
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14611000
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	17244000
CY2021	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	9445000
CY2020	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	17442000
CY2019	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	20534000
CY2020	nbr	Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic DistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	125000
CY2019	nbr	Distributed And Undistributed Earnings Loss Allocated To Participating Securities Basic DistributedAndUndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	459000
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-582390000
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-837826000
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-741110000
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	20000
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	7000
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-12000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7605000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7059000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7032000
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-76.58
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-118.69
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-105.39
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-76.58
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-118.69
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-105.39
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-582390000
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-837826000
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-741110000
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-582390000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7605000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7059000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7032000
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-76.58
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-118.69
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-105.39
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-76.58
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-118.69
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-105.39
CY2020Q2	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	50
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	28000
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	66000
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	40000
CY2019	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	8424000
CY2021	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	30000
CY2020	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-3267000
CY2019	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	1794000
CY2021	us-gaap	Investment Income Net InvestmentIncomeNet	1557000
CY2020	us-gaap	Investment Income Net InvestmentIncomeNet	1438000
CY2019	us-gaap	Investment Income Net InvestmentIncomeNet	10218000
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	51993000
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	82462000
CY2021Q4	nbr	Deferred Revenue And Proceeds On Insurance And Asset Sales DeferredRevenueAndProceedsOnInsuranceAndAssetSales	59816000
CY2020Q4	nbr	Deferred Revenue And Proceeds On Insurance And Asset Sales DeferredRevenueAndProceedsOnInsuranceAndAssetSales	61473000
CY2021Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	34333000
CY2020Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	28602000
CY2021Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	6588000
CY2020Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	7788000
CY2021Q4	us-gaap	Interest Payable Current InterestPayableCurrent	71814000
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	62935000
CY2021Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	14939000
CY2020Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	13976000
CY2020Q4	nbr	Dividends Declared And Payable DividendsDeclaredAndPayable	3653000
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	7688000
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	15196000
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	247171000
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	276085000
CY2021	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	1527000
CY2020	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	4705000
CY2021	nbr	Losses Gains On Sales Retirements And Involuntary Conversions Of Long Lived Assets LossesGainsOnSalesRetirementsAndInvoluntaryConversionsOfLongLivedAssets	23883000
CY2020	nbr	Losses Gains On Sales Retirements And Involuntary Conversions Of Long Lived Assets LossesGainsOnSalesRetirementsAndInvoluntaryConversionsOfLongLivedAssets	12363000
CY2019	nbr	Losses Gains On Sales Retirements And Involuntary Conversions Of Long Lived Assets LossesGainsOnSalesRetirementsAndInvoluntaryConversionsOfLongLivedAssets	7141000
CY2021	nbr	Technology Expense TechnologyExpense	14733000
CY2021	us-gaap	Litigation Settlement Expense LitigationSettlementExpense	8290000
CY2020	us-gaap	Litigation Settlement Expense LitigationSettlementExpense	4249000
CY2019	us-gaap	Litigation Settlement Expense LitigationSettlementExpense	5226000
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-4807000
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-12125000
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-20929000
CY2021	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-1708000
CY2020	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	170000
CY2019	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	72000
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-53421000
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-28567000
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-33224000
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	11221000
CY2020Q4	nbr	Income Tax Refunded IncomeTaxRefunded	17505000
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	6553000
CY2021	us-gaap	Interest Paid Net InterestPaidNet	161932000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	157437000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	174357000
CY2021	nbr	Change In Capital Expenditures Incurred But Not Yet Paid ChangeInCapitalExpendituresIncurredButNotYetPaid	9713000
CY2020	nbr	Change In Capital Expenditures Incurred But Not Yet Paid ChangeInCapitalExpendituresIncurredButNotYetPaid	-1188000
CY2019	nbr	Change In Capital Expenditures Incurred But Not Yet Paid ChangeInCapitalExpendituresIncurredButNotYetPaid	-7624000
CY2019	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	2929000
CY2019	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	2929000
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	5
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2017548000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2134043000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3043383000
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-80787000
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-171461000
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	89145000
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-5000
CY2021	us-gaap	Investment Income Net InvestmentIncomeNet	1557000
CY2020	us-gaap	Investment Income Net InvestmentIncomeNet	1438000
CY2019	us-gaap	Investment Income Net InvestmentIncomeNet	10218000
CY2021	us-gaap	Interest Expense InterestExpense	171476000
CY2020	us-gaap	Interest Expense InterestExpense	206274000
CY2019	us-gaap	Interest Expense InterestExpense	204311000
CY2021	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	13423000
CY2020	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	228274000
CY2019	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	11468000
CY2021	nbr	Asset Impairment And Other Charges AssetImpairmentAndOtherCharges	66731000
CY2020	nbr	Asset Impairment And Other Charges AssetImpairmentAndOtherCharges	410631000
CY2019	nbr	Asset Impairment And Other Charges AssetImpairmentAndOtherCharges	301939000
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-53421000
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-28567000
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-33224000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-488089000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-705567000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-588922000
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	693381000
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	853699000
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	876091000
CY2021	nbr	Capital Expenditures CapitalExpenditures	243689000
CY2020	nbr	Capital Expenditures CapitalExpenditures	189706000
CY2019	nbr	Capital Expenditures CapitalExpenditures	423967000
CY2021Q4	us-gaap	Assets Assets	5525364000
CY2020Q4	us-gaap	Assets Assets	5503428000
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2017548000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2134043000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3043383000
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3332498000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3985707000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4930549000
CY2019Q4	us-gaap	Goodwill Goodwill	28380000
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2017548000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2134043000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3043383000
CY2020Q4	nbr	Trade Receivables Current TradeReceivablesCurrent	427200000
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	23500000
CY2020Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	6800000
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	42800000
CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	44200000
CY2021Q4	nbr	Trade Receivables Current TradeReceivablesCurrent	350000000.0
CY2021Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	24900000
CY2021Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	1900000
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	42900000
CY2021Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	29300000
CY2021	nbr	Percentage Of Contract With Customer Liability Beginning Of Period Balance Revenue Recognized PercentageOfContractWithCustomerLiabilityBeginningOfPeriodBalanceRevenueRecognized	0.29
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.30
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.41
CY2021Q4	nbr	Contract Asset Amortization Percentage Recognized ContractAssetAmortizationPercentageRecognized	0.74
CY2021Q4	nbr	Contract Asset Amortization Percentage Second Year After Latest Fiscal Year ContractAssetAmortizationPercentageSecondYearAfterLatestFiscalYear	0.21
CY2021	nbr	Contract Asset Amortization Percentage Year Three Or Thereafter ContractAssetAmortizationPercentageYearThreeOrThereafter	0.05
CY2021	nbr	Lease Practical Expedient Transition Approach LeasePracticalExpedientTransitionApproach	true
CY2021	us-gaap	Lease Practical Expedients Package LeasePracticalExpedientsPackage	true
CY2021	nbr	Lease Practical Expedient Lease Capitalization LeasePracticalExpedientLeaseCapitalization	true
CY2021	nbr	Lease Practical Expedient Separate Lease Non Lease Components LeasePracticalExpedientSeparateLeaseNonLeaseComponents	false
CY2021	nbr	Lease Practical Expedient Land Easement LeasePracticalExpedientLandEasement	true
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	23049000
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	32312000
CY2021Q4	nbr	Lease Assets LeaseAssets	23049000
CY2020Q4	nbr	Lease Assets LeaseAssets	32312000
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	5422000
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	8305000
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	18722000
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	24656000
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	24144000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	32961000
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	9848000
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	15235000
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	593000
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1165000
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	143000
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	512000
CY2021	us-gaap	Lease Cost LeaseCost	10584000
CY2020	us-gaap	Lease Cost LeaseCost	16912000
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	9848000
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	15235000
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y7M6D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y10M28D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0619
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0607
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	6856000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4700000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2436000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2185000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2155000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	13035000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	31367000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	7223000
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	24144000

Files In Submission

Name	View Source	Status
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0001558370-22-001407-index.html	Edgar Link	pending
0001558370-22-001407.txt	Edgar Link	pending
0001558370-22-001407-xbrl.zip	Edgar Link	pending
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nbr-20211231_cal.xml	Edgar Link	unprocessable
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$NBR
NABORS INDUSTRIES LTD Stock $nbr

2021 Q4 Form 10-K Financial Statement

#000155837022001407 Filed on February 18, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NBR NABORS INDUSTRIES LTD Stock $nbr

2021 Q4 Form 10-K Financial Statement

#000155837022001407 Filed on February 18, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NBR
NABORS INDUSTRIES LTD Stock $nbr