$TDW
TIDEWATER INC Stock $tdw

$tdw Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000143774924006108 Filed on February 29, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$321.2M	$302.7M	$1.010B
YoY Change	66.32%	62.07%	55.94%
Cost Of Revenue	$168.7M	$159.9M	$560.9M
YoY Change	44.68%	37.61%	40.41%
Gross Profit	$152.5M	$142.8M	$449.1M
YoY Change	99.31%	102.35%	80.92%
Gross Profit Margin	47.47%	47.17%	44.47%
Selling, General & Admin	$25.33M	$24.72M	$94.19M
YoY Change	7.58%	-13.65%	-5.71%
% of Gross Profit	16.61%	17.32%	20.97%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$38.81M	$42.79M	$128.8M
YoY Change	84.39%	103.92%	54.18%
% of Gross Profit	25.46%	29.97%	28.67%
Operating Expenses	$81.60M	$83.89M	$274.5M
YoY Change	50.52%	43.37%	25.32%
Operating Profit	$81.90M	$58.88M	$182.2M
YoY Change	234.29%	388.93%	582.25%
Interest Expense	$1.483M	-$15.47M	$6.517M
YoY Change	1040.77%	1148.91%	20.75%
% of Operating Profit	1.81%	-26.28%	3.58%
Other Income/Expense, Net	-$22.08M		-$43.29M
YoY Change	1189.89%		49.18%
Pretax Income	$59.82M	$48.12M	$138.9M
YoY Change	162.5%	305.09%	-6122.06%
Income Tax	$13.07M	$10.79M	$43.31M
% Of Pretax Income	21.85%	22.43%	31.17%
Net Earnings	$47.03M	$37.66M	$97.19M
YoY Change	337.94%	254.65%	-546.85%
Net Earnings / Revenue	14.64%	12.44%	9.62%
Basic Earnings Per Share	$0.90		$1.88
Diluted Earnings Per Share	$0.89	$0.70	$1.84
COMMON SHARES
Basic Shares Outstanding	52.27M	52.84M	51.59K
Diluted Shares Outstanding	52.90M		52.94K

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$280.9M	$274.4M	$274.4M
YoY Change	70.06%	67.14%	67.14%
Cash & Equivalents	$280.9M	$274.4M	$274.4M
Short-Term Investments
Other Short-Term Assets	$23.92M	$16.41M	$16.41M
YoY Change	-2.94%	-37.88%	-37.88%
Inventory	$24.77M	$31.93M	$31.93M
Prepaid Expenses
Receivables	$286.0M	$268.4M	$268.4M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$615.5M	$591.1M	$591.1M
YoY Change	55.26%	56.42%	56.42%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.287B	$1.315B	$1.322B
YoY Change	63.66%	65.08%	64.53%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$30.41M	$32.45M	$149.3M
YoY Change	-10.72%	-3.55%	28.66%
Total Long-Term Assets	$1.462B	$1.472B	$1.472B
YoY Change	57.12%	60.0%	60.0%
TOTAL ASSETS
Total Short-Term Assets	$615.5M	$591.1M	$591.1M
Total Long-Term Assets	$1.462B	$1.472B	$1.472B
Total Assets	$2.078B	$2.063B	$2.063B
YoY Change	56.56%	58.96%	58.96%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$51.77M	$44.93M	$44.93M
YoY Change	-20.07%	15.37%	15.37%
Accrued Expenses	$132.2M	$125.6M	$127.4M
YoY Change	23.14%	19.02%	18.35%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$103.0M	$103.1M	$103.1M
YoY Change
Total Short-Term Liabilities	$339.1M	$328.7M	$328.7M
YoY Change	57.49%	68.76%	68.76%
LONG-TERM LIABILITIES
Long-Term Debt	$620.3M	$631.4M	$631.4M
YoY Change	266.14%	273.51%	273.51%
Other Long-Term Liabilities	$63.20M	$64.99M	$64.99M
YoY Change	-8.37%	-4.21%	-4.21%
Total Long-Term Liabilities	$683.5M	$696.3M	$696.3M
YoY Change	186.72%	193.97%	193.97%
TOTAL LIABILITIES
Total Short-Term Liabilities	$339.1M	$328.7M	$328.7M
Total Long-Term Liabilities	$683.5M	$696.3M	$696.3M
Total Liabilities	$1.023B	$1.025B	$1.024B
YoY Change	125.39%	137.47%	137.1%
SHAREHOLDERS EQUITY
Retained Earnings	-$594.3M	-$637.8M
YoY Change	-13.73%	-8.83%
Common Stock	$1.646B	$1.672B
YoY Change	5.93%	7.37%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.057B	$1.039B	$1.039B
YoY Change
Total Liabilities & Shareholders Equity	$2.078B	$2.063B	$2.063B
YoY Change	56.56%	58.96%	58.96%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$47.03M	$37.66M	$97.19M
YoY Change	337.94%	254.65%	-546.85%
Depreciation, Depletion And Amortization	$38.81M	$42.79M	$128.8M
YoY Change	84.39%	103.92%	54.18%
Cash From Operating Activities	$54.77M	$47.23M	$104.7M
YoY Change	328.05%	4.17%	160.29%
INVESTING ACTIVITIES
Capital Expenditures	$10.94M	$8.386M	$31.59M
YoY Change	26.48%	70.14%	89.87%
Acquisitions			$594.2M
YoY Change			2764.95%
Other Investing Activities	$12.46M	$5.902M	-$578.7M
YoY Change	118.04%	15.88%	7968.67%
Cash From Investing Activities	$1.521M	-$2.484M	-$610.3M
YoY Change	-151.82%	-1614.63%	2463.2%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$35.03M
YoY Change			-81.35%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$44.60M	-48.84M	$615.6M
YoY Change	761.96%	103821.28%	-22764.06%
NET CHANGE
Cash From Operating Activities	$54.77M	47.23M	$104.7M
Cash From Investing Activities	$1.521M	-2.484M	-$610.3M
Cash From Financing Activities	-$44.60M	-48.84M	$615.6M
Net Change In Cash	$11.69M	-4.096M	$110.0M
YoY Change	149.48%	-109.01%	702.77%
FREE CASH FLOW
Cash From Operating Activities	$54.77M	$47.23M	$104.7M
Capital Expenditures	$10.94M	$8.386M	$31.59M
Free Cash Flow	$43.82M	$38.85M	$73.12M
YoY Change	957.76%	-3.88%	209.96%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
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CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	52259303
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CY2023	tdw	Highly Liquid Investments Maturity Period HighlyLiquidInvestmentsMaturityPeriod	P3Y
CY2023	tdw	Inspection Interval InspectionInterval	P5Y
CY2021	tdw	Number Of Vessels Sold NumberOfVesselsSold	9	pure
CY2021	tdw	Number Of Vessels Held For Sale Addition NumberOfVesselsHeldForSaleAddition	7	pure
CY2021	tdw	Number Of Vessels Transfer From Held For Sale To Active Fleet NumberOfVesselsTransferFromHeldForSaleToActiveFleet	3	pure
CY2022	tdw	Number Of Vessels Held For Sale Addition NumberOfVesselsHeldForSaleAddition	3	pure
CY2022	tdw	Number Of Vessels Transfer From Held For Sale To Active Fleet NumberOfVesselsTransferFromHeldForSaleToActiveFleet	1	pure
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CY2023	dei	Document Type DocumentType	10-K
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	1-6311
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	72-0487776
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	842 West Sam Houston Parkway North, Suite 400
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77024
CY2023	dei	City Area Code CityAreaCode	713
CY2023	dei	Local Phone Number LocalPhoneNumber	470-5300
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
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CY2023	dei	Auditor Firm AuditorFirmId	238
CY2023	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
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CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-2307000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-123785000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	43308000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19886000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5875000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	95621000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	-22193000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	-129660000	usd
CY2023	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1564000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-444000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-691000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	97185000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-21749000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-128969000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.88
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.49
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.14
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.84
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.49
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.14
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51591
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	44132
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41009
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1346
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52937
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	44132
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41009
CY2023	us-gaap	Profit Loss ProfitLoss	95621000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	-22193000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	-129660000	usd
CY2023	tdw	Other Comprehensive Income Loss Unrealized Gain Loss On Note Receivable Total OtherComprehensiveIncomeLossUnrealizedGainLossOnNoteReceivableTotal	213000	usd
CY2022	tdw	Other Comprehensive Income Loss Unrealized Gain Loss On Note Receivable Total OtherComprehensiveIncomeLossUnrealizedGainLossOnNoteReceivableTotal	-496000	usd
CY2021	tdw	Other Comprehensive Income Loss Unrealized Gain Loss On Note Receivable Total OtherComprehensiveIncomeLossUnrealizedGainLossOnNoteReceivableTotal	0	usd
CY2023	tdw	Other Comprehensive Income Supplemental Executive Retirement Plan Minimum Liability Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeSupplementalExecutiveRetirementPlanMinimumLiabilityAdjustmentNetOfTaxPeriodIncreaseDecrease	-525000	usd
CY2022	tdw	Other Comprehensive Income Supplemental Executive Retirement Plan Minimum Liability Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeSupplementalExecutiveRetirementPlanMinimumLiabilityAdjustmentNetOfTaxPeriodIncreaseDecrease	4561000	usd
CY2021	tdw	Other Comprehensive Income Supplemental Executive Retirement Plan Minimum Liability Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeSupplementalExecutiveRetirementPlanMinimumLiabilityAdjustmentNetOfTaxPeriodIncreaseDecrease	-763000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	2998000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1843000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-4235000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	92311000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-16285000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-126188000	usd
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	823272000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-126188000	usd
CY2021	tdw	Stock Issued During Period Value Amortization Or Cancellation Of Restricted Stock StockIssuedDuringPeriodValueAmortizationOrCancellationOfRestrictedStock	4685000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	701769000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-16285000	usd
CY2022	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	192891000	usd
CY2022	tdw	Class Of Warrant Or Right Issued During Period Value ClassOfWarrantOrRightIssuedDuringPeriodValue	176823000	usd
CY2022	tdw	Class Of Warrant Or Right Repurchased During Period Value ClassOfWarrantOrRightRepurchasedDuringPeriodValue	-194256000	usd
CY2022	tdw	Stock Issued During Period Value Amortization Or Cancellation Of Restricted Stock StockIssuedDuringPeriodValueAmortizationOrCancellationOfRestrictedStock	5048000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	865990000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	92311000	usd
CY2023	tdw	Stock Issued During Period Value Warrant Exercises StockIssuedDuringPeriodValueWarrantExercises	111483000	usd
CY2023	tdw	Stock Repurchased And Retired During Period Amount StockRepurchasedAndRetiredDuringPeriodAmount	35375000	usd
CY2023	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	1427000	usd
CY2023	tdw	Stock Issued During Period Value Amortization Or Cancellation Of Restricted Stock StockIssuedDuringPeriodValueAmortizationOrCancellationOfRestrictedStock	4715000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1037697000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	95621000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	-22193000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	-129660000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	128777000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	83522000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	73223000	usd
CY2023	tdw	Amortization Of Dry Docking And Survey Costs AmortizationOfDryDockingAndSurveyCosts	51554000	usd
CY2022	tdw	Amortization Of Dry Docking And Survey Costs AmortizationOfDryDockingAndSurveyCosts	35638000	usd
CY2021	tdw	Amortization Of Dry Docking And Survey Costs AmortizationOfDryDockingAndSurveyCosts	41321000	usd
CY2023	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	4619000	usd
CY2022	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1679000	usd
CY2021	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3171000	usd
CY2023	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-3800000	usd
CY2022	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	0	usd
CY2021	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	0	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	92000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	36000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1287000	usd
CY2023	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	8701000	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	250000	usd
CY2021	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-2901000	usd
CY2023	us-gaap	Pension And Other Postretirement Benefits Expense Reversal Of Expense Noncash PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash	-2313000	usd
CY2022	us-gaap	Pension And Other Postretirement Benefits Expense Reversal Of Expense Noncash PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash	0	usd
CY2021	us-gaap	Pension And Other Postretirement Benefits Expense Reversal Of Expense Noncash PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash	0	usd
CY2023	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	-0	usd
CY2022	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	1300000	usd
CY2021	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	-0	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	400000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	714000	usd
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	15643000	usd
CY2023	tdw	Gain Loss On Warrants GainLossOnWarrants	-0	usd
CY2022	tdw	Gain Loss On Warrants GainLossOnWarrants	-14175000	usd
CY2021	tdw	Gain Loss On Warrants GainLossOnWarrants	-0	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-0	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-0	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-11100000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	10755000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	7372000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	5638000	usd
CY2023	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	109756000	usd
CY2022	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	4129000	usd
CY2021	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-26120000	usd
CY2023	us-gaap	Increase Decrease In Due To Affiliates IncreaseDecreaseInDueToAffiliates	0	usd
CY2022	us-gaap	Increase Decrease In Due To Affiliates IncreaseDecreaseInDueToAffiliates	-20000	usd
CY2021	us-gaap	Increase Decrease In Due To Affiliates IncreaseDecreaseInDueToAffiliates	-123000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1984000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	14611000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1365000	usd
CY2023	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-5813000	usd
CY2022	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	4899000	usd
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-2961000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	5985000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	16481000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	3807000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	20072000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-1340000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-688000	usd
CY2023	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	809000	usd
CY2022	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-555000	usd
CY2021	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-8920000	usd
CY2023	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-740000	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-10930000	usd
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-6849000	usd
CY2023	tdw	Increase Decrease In Cash Paid For Deferred Drydocking And Survey Costs IncreaseDecreaseInCashPaidForDeferredDrydockingAndSurveyCosts	97378000	usd
CY2022	tdw	Increase Decrease In Cash Paid For Deferred Drydocking And Survey Costs IncreaseDecreaseInCashPaidForDeferredDrydockingAndSurveyCosts	56000000	usd
CY2021	tdw	Increase Decrease In Cash Paid For Deferred Drydocking And Survey Costs IncreaseDecreaseInCashPaidForDeferredDrydockingAndSurveyCosts	27282000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-1312000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	3164000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-2165000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	104705000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	40226000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	15006000	usd
CY2023	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	15506000	usd
CY2022	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	13568000	usd
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	34010000	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	594191000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	20740000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-0	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	31588000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	16637000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8951000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-610273000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-23809000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	25059000	usd
CY2023	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	111483000	usd
CY2022	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	usd
CY2021	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	187832000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2023	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	-0	usd
CY2022	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	187832000	usd
CY2021	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	-0	usd
CY2023	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	575000000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	172375000	usd
CY2023	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	13677000	usd
CY2022	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	-0	usd
CY2021	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	198918000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	35025000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	-0	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	-0	usd
CY2023	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	-0	usd
CY2022	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	-0	usd
CY2021	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	7781000	usd
CY2023	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	1427000	usd
CY2022	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	-0	usd
CY2021	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	-0	usd
CY2023	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	14758000	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	393000	usd
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5737000	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	6040000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2323000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	953000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	615556000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2716000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-41014000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	109988000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	13701000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-949000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	167977000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	154276000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	155225000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	277965000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	167977000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	154276000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	26638000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	15554000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	13747000	usd
CY2023	us-gaap	Income Taxes Paid IncomeTaxesPaid	43880000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	22275000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	19013000	usd
CY2023	tdw	Noncash Or Part Noncash Acquisition Value NoncashOrPartNoncashAcquisitionValue	0	usd
CY2022	tdw	Noncash Or Part Noncash Acquisition Value NoncashOrPartNoncashAcquisitionValue	162648000	usd
CY2021	tdw	Noncash Or Part Noncash Acquisition Value NoncashOrPartNoncashAcquisitionValue	0	usd
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	14265000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	0	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	0	usd
CY2023	tdw	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Value Warrants Issued NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationValueWarrantsIssued	0	usd
CY2022	tdw	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Value Warrants Issued NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationValueWarrantsIssued	162648000	usd
CY2021	tdw	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Value Warrants Issued NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationValueWarrantsIssued	0	usd
CY2023	tdw	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Value Warrants Repurchased NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationValueWarrantsRepurchased	0	usd
CY2022	tdw	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Value Warrants Repurchased NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationValueWarrantsRepurchased	1365000	usd
CY2021	tdw	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Value Warrants Repurchased NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationValueWarrantsRepurchased	0	usd
CY2023	us-gaap	Notes Issued1 NotesIssued1	15235000	usd
CY2022	us-gaap	Notes Issued1 NotesIssued1	0	usd
CY2021	us-gaap	Notes Issued1 NotesIssued1	0	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Use of Estimates in Preparation of Financial Statements </b></p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the recorded amounts of revenues and expenses during the reporting period. The accompanying consolidated financial statements include estimates for allowance for credit losses, useful lives of property and equipment, estimated net realizable value of assets held for sale and marine operating supplies, income tax provisions, impairments, fair value of assets and liabilities related to acquired vessels, fair value of available-for-sale debt securities, fair value of stock-based compensation awards, commitments and contingencies and certain accrued liabilities. We evaluate our estimates and assumptions on an ongoing basis based on a combination of historical information and various other assumptions that are considered reasonable under the circumstances, the results of which form the basis for making judgments about carrying values of assets and liabilities that are <em style="font: inherit;">not</em> readily apparent from other sources. These accounting policies involve judgment and uncertainties to such an extent that there is reasonable likelihood that materially different amounts could have been reported under different conditions or if different assumptions had been used and, as such, actual results <em style="font: inherit;"> may </em>differ from these estimates.</p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"> </p>
CY2023	tdw	Increase Of Amortization Period IncreaseOfAmortizationPeriod	P30M
CY2023Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	1716339000	usd
CY2022Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	1070821000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	32447000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	35819000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1748786000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1106640000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	433664000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	309985000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1315122000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	796655000	usd
CY2023	tdw	Number Of Offshore Supply Vessels NumberOfOffshoreSupplyVessels	217	pure
CY2022	tdw	Number Of Offshore Supply Vessels NumberOfOffshoreSupplyVessels	191	pure
CY2022	tdw	Number Of Vessels Disposed NumberOfVesselsDisposed	8	pure
CY2022	tdw	Number Of Vessels Disposed NumberOfVesselsDisposed	8	pure
CY2023	us-gaap	Net Income Loss NetIncomeLoss	97185000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-21749000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-128969000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51591
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	44132
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41009
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1346
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52937
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	44132
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41009
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.88
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.49
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.14
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.84
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.49
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.14
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1674
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1863
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2346
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Concentrations of Credit Risk and Allowance for Credit Losses</b></p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;"> </p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Our financial instruments that are exposed to concentrations of credit risk consist primarily of trade and other receivables from a variety of domestic, international and national energy companies. We manage our exposure to risk by performing ongoing credit evaluations of our customers’ financial condition and <em style="font: inherit;"> may </em>at times require prepayments or other forms of collateral.</p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"> </p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"> </p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">We maintain an allowance for credit loss based on expected collectability and do <em style="font: inherit;">not</em> believe we are generally exposed to concentrations of credit risk that are likely to have a material adverse impact on our financial position, results of operations, or cash flows. Expected credit losses are recognized on the initial recognition of our trade accounts receivable. In each subsequent reporting period, even if a loss has <em style="font: inherit;">not</em> yet been incurred, credit losses are recognized based on the history of credit losses and current conditions, as well as reasonable and supportable forecasts affecting collectability. We developed an expected credit loss model applicable to our trade accounts receivable and contract assets that considers our historical performance and the economic environment, as well as the credit risk and its expected development for each group of customers that share similar risk characteristics. It is our practice to write off receivables when all legal options for collection have been exhausted.</p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"> </p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;">Activity in the allowance for credit losses for the <em style="font: inherit;">three</em> years ended <em style="font: inherit;"> December 31, 2023</em> is as follows:</p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;"> </p> <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: "Times New Roman"; text-indent: 0px;"><tbody><tr class="finHeading" style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="font-family: "Times New Roman"; font-size: 10pt;"> </td><td colspan="2" style="text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:right;margin:0pt;"><em style="font: inherit;">Trade</em></p> </td><td style="font-family: "Times New Roman"; font-size: 10pt;"> </td></tr> <tr class="finHeading" style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt; width: 85%;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;"><span style="text-decoration: underline; ">(In Thousands)</span></p> </td><td style="font-family: "Times New Roman"; font-size: 10pt;"> </td><td colspan="2" style="text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:right;margin:0pt;"><em style="font: inherit;">and</em></p> </td><td style="font-family: "Times New Roman"; font-size: 10pt;"> </td></tr> <tr class="finHeading" style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="font-family: "Times New Roman"; font-size: 10pt; padding-bottom: 1px; border-bottom: 1px solid black;"> </td><td colspan="2" style="text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:right;margin:0pt;"><em style="font: inherit;">Other Receivables</em></p> </td><td style="font-family: "Times New Roman"; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"> </td></tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Balance at January 1, 2021</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">73,316</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;"> </td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Current period provision for expected credit losses</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">1,238</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;"> </td></tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Write offs</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">(406</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">)</td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Other</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; padding-bottom: 1px; border-bottom: 1px solid black;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"> </td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">256</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> </td></tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Balance at December 31, 2022</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; padding-bottom: 3px; border-bottom: 3px double black;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">74,404</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"> </td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Current period provision for expected credit losses</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">414</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;"> </td></tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Acquisition of Sonatide joint venture</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">(59,678</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">)</td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Other</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; padding-bottom: 1px; border-bottom: 1px solid black;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"> </td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(1,080</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td></tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Balance at December 31, 2022</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; padding-bottom: 3px; border-bottom: 3px double black;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">14,060</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"> </td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Current period provision for expected credit losses</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">3,305</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;"> </td></tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Write offs</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">(1,484</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">)</td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Recoveries</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt;"> </td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;">490</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt;"> </td></tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Other</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; padding-bottom: 1px; border-bottom: 1px solid black;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"> </td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(457</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman"; font-size: 10pt;"> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt;">Balance at December 31, 2023</p> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; padding-bottom: 3px; border-bottom: 3px double black;"> </td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 12%; text-align: right; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">15,914</td><td style="width: 1%; font-family: "Times New Roman"; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"> </td></tr> </tbody></table> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"> </p>
CY2023	us-gaap	Other Comprehensive Income Reclassification Adjustment For Held To Maturity Transferred To Available For Sale Securities Before Tax OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesBeforeTax	-300000	usd
CY2022	us-gaap	Other Comprehensive Income Reclassification Adjustment For Held To Maturity Transferred To Available For Sale Securities Before Tax OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesBeforeTax	-500000	usd
CY2023	tdw	Wage And Sick Cost Refund Amount WageAndSickCostRefundAmount	6100000	usd
CY2022	us-gaap	Government Assistance Amount GovernmentAssistanceAmount	1300000	usd
CY2022	tdw	Wage And Sick Cost Refund Amount WageAndSickCostRefundAmount	5300000	usd
CY2023Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	17213000	usd
CY2022Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	5964000	usd
CY2023Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	103077000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	-0	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	631361000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	169036000	usd
CY2023	us-gaap	Interest And Debt Expense InterestAndDebtExpense	48742000	usd
CY2022	us-gaap	Interest And Debt Expense InterestAndDebtExpense	17413000	usd
CY2021	us-gaap	Interest And Debt Expense InterestAndDebtExpense	15607000	usd
CY2023	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	270000	usd
CY2022	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	224000	usd
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	24000	usd
CY2023	us-gaap	Interest Costs Incurred InterestCostsIncurred	48472000	usd
CY2022	us-gaap	Interest Costs Incurred InterestCostsIncurred	17189000	usd
CY2021	us-gaap	Interest Costs Incurred InterestCostsIncurred	15583000	usd
CY2022	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	8000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	174103000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	41408000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-58476000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-35174000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-43715000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-65309000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	138929000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-2307000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-123785000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	682000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	6480000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7162000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1418000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	131000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1287000	usd
CY2021	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-736000	usd
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	0	usd
CY2021	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	6611000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5875000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	19842000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	19850000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	36000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	36000	usd
CY2022	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	0	usd
CY2022	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	19878000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19886000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	43215000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	43216000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	usd
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	92000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	92000	usd
CY2023	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	0	usd
CY2023	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1000	usd
CY2023	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	43307000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	43308000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	29175000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-484000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-25995000	usd
CY2023	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-35088000	usd
CY2022	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-7240000	usd
CY2021	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	10984000	usd
CY2023	tdw	Income Tax Reconciliation Uncertain Tax Position IncomeTaxReconciliationUncertainTaxPosition	-1401000	usd
CY2022	tdw	Income Tax Reconciliation Uncertain Tax Position IncomeTaxReconciliationUncertainTaxPosition	-7885000	usd
CY2021	tdw	Income Tax Reconciliation Uncertain Tax Position IncomeTaxReconciliationUncertainTaxPosition	-25417000	usd
CY2023	tdw	Effective Income Tax Rate Reconciliation Nondeductible Expense Transaction Costs Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsAmount	-898000	usd
CY2022	tdw	Effective Income Tax Rate Reconciliation Nondeductible Expense Transaction Costs Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsAmount	5410000	usd
CY2021	tdw	Effective Income Tax Rate Reconciliation Nondeductible Expense Transaction Costs Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsAmount	0	usd
CY2023	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-83000	usd
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	11339000	usd
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	34566000	usd
CY2023	tdw	Effective Income Tax Rate Reconciliation Deferred Tax True Up Valuation Allowance Amount EffectiveIncomeTaxRateReconciliationDeferredTaxTrueUpValuationAllowanceAmount	390000	usd
CY2022	tdw	Effective Income Tax Rate Reconciliation Deferred Tax True Up Valuation Allowance Amount EffectiveIncomeTaxRateReconciliationDeferredTaxTrueUpValuationAllowanceAmount	-453000	usd
CY2021	tdw	Effective Income Tax Rate Reconciliation Deferred Tax True Up Valuation Allowance Amount EffectiveIncomeTaxRateReconciliationDeferredTaxTrueUpValuationAllowanceAmount	29711000	usd
CY2023	tdw	Effective Income Tax Rate Reconciliation Deferred Tax True Up Amount EffectiveIncomeTaxRateReconciliationDeferredTaxTrueUpAmount	-390000	usd
CY2022	tdw	Effective Income Tax Rate Reconciliation Deferred Tax True Up Amount EffectiveIncomeTaxRateReconciliationDeferredTaxTrueUpAmount	453000	usd
CY2021	tdw	Effective Income Tax Rate Reconciliation Deferred Tax True Up Amount EffectiveIncomeTaxRateReconciliationDeferredTaxTrueUpAmount	-29789000	usd
CY2023	tdw	Income Tax Reconciliation Increase Decrease In Foreign Taxes IncomeTaxReconciliationIncreaseDecreaseInForeignTaxes	-36339000	usd
CY2022	tdw	Income Tax Reconciliation Increase Decrease In Foreign Taxes IncomeTaxReconciliationIncreaseDecreaseInForeignTaxes	-27945000	usd
CY2021	tdw	Income Tax Reconciliation Increase Decrease In Foreign Taxes IncomeTaxReconciliationIncreaseDecreaseInForeignTaxes	-15220000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Gilti Amount EffectiveIncomeTaxRateReconciliationGiltiAmount	2705000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Gilti Amount EffectiveIncomeTaxRateReconciliationGiltiAmount	0	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Gilti Amount EffectiveIncomeTaxRateReconciliationGiltiAmount	0	usd
CY2023	tdw	Income Tax Reconciliation Return To Accrual IncomeTaxReconciliationReturnToAccrual	-8079000	usd
CY2022	tdw	Income Tax Reconciliation Return To Accrual IncomeTaxReconciliationReturnToAccrual	-12162000	usd
CY2021	tdw	Income Tax Reconciliation Return To Accrual IncomeTaxReconciliationReturnToAccrual	-7691000	usd
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	13896000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	0	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	0	usd
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-1470000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0	usd
CY2023	tdw	Income Tax Reconciliation Executive Compensation IncomeTaxReconciliationExecutiveCompensation	2107000	usd
CY2022	tdw	Income Tax Reconciliation Executive Compensation IncomeTaxReconciliationExecutiveCompensation	552000	usd
CY2021	tdw	Income Tax Reconciliation Executive Compensation IncomeTaxReconciliationExecutiveCompensation	125000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-6664000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-3495000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	-484000	usd
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-559000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1084000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3677000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	43308000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19886000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5875000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	6678000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	8726000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1838000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	991000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	596093000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	448624000	usd
CY2023Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	14764000	usd
CY2022Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	10935000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	5607000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	2027000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7195000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2656000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	632175000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	473959000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	591720000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	441893000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	40455000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	32066000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	40294000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	30959000	usd
CY2023Q4	tdw	Deferred Tax Liability Outside Basis Difference DeferredTaxLiabilityOutsideBasisDifference	2891000	usd
CY2022Q4	tdw	Deferred Tax Liability Outside Basis Difference DeferredTaxLiabilityOutsideBasisDifference	2891000	usd
CY2023Q4	tdw	Deferred Tax Liabilities Foreign Interest Withholding Tax DeferredTaxLiabilitiesForeignInterestWithholdingTax	1154000	usd
CY2022Q4	tdw	Deferred Tax Liabilities Foreign Interest Withholding Tax DeferredTaxLiabilitiesForeignInterestWithholdingTax	1072000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	-1628000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	-692000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	42711000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	34230000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2256000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2164000	usd
CY2023	tdw	Annual Limitation Of Companys Ownership Change AnnualLimitationOfCompanysOwnershipChange	15000000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	591700000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	441900000	usd
CY2023Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	153700000	usd
CY2023Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	27319000	usd
CY2022Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	35468000	usd
CY2023Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	30909000	usd
CY2022Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	29009000	usd
CY2023Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	3354000	usd
CY2022Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	1502000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	13600000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	15800000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	351047000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	53000	usd
CY2021	tdw	Unrecognized Tax Benefits Increase Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsIncreaseResultingFromLapseOfApplicableStatuteOfLimitations	18515000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	35962000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	333653000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	744000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	10155000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	167170000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	177382000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	212000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1869000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	165065000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	712000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	13686000	usd
CY2023Q4	tdw	Foreign Tax Credits And Other Tax Attributes ForeignTaxCreditsAndOtherTaxAttributes	157700000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	9000000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	20900000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	22500000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2884000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1807000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1521000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	937000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	523000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	787000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	8459000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1364000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	1798000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	1485000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	1369000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2496000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	3088000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2529000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	648000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	494000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	412000	usd
CY2023	us-gaap	Lease Cost LeaseCost	4942000	usd
CY2022	us-gaap	Lease Cost LeaseCost	5067000	usd
CY2021	us-gaap	Lease Cost LeaseCost	4310000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y6M
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0773	pure
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	3800000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	2400000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	1800000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	3100000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5000000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	300000	usd
CY2020	tdw	Number Of Vessels Held For Sale Addition NumberOfVesselsHeldForSaleAddition	88	pure
CY2021Q4	tdw	Number Of Vessels Held For Sale NumberOfVesselsHeldForSale	18	pure
CY2021	tdw	Number Of Active Vessels Sold NumberOfActiveVesselsSold	10	pure
CY2022	tdw	Number Of Vessels Sold NumberOfVesselsSold	12	pure
CY2023Q4	tdw	Number Of Vessels Held For Sale NumberOfVesselsHeldForSale	0	pure
CY2023	tdw	Proceeds From Sale Of Vessels And Other Assets ProceedsFromSaleOfVesselsAndOtherAssets	15500000	usd
CY2022	tdw	Proceeds From Sale Of Vessels And Other Assets ProceedsFromSaleOfVesselsAndOtherAssets	13600000	usd
CY2021	tdw	Proceeds From Sale Of Vessels And Other Assets ProceedsFromSaleOfVesselsAndOtherAssets	34000000	usd
CY2021	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	13700000	usd
CY2022	tdw	Impairment Charge Recaptured ImpairmentChargeRecaptured	500000	usd
CY2021	tdw	Impairment Charge Recaptured ImpairmentChargeRecaptured	1700000	usd
CY2022Q4	tdw	Defined Benefit Plan Concentration Risk Assets Equity Securities Difference Plan Assets And Liabilities DefinedBenefitPlanConcentrationRiskAssetsEquitySecuritiesDifferencePlanAssetsAndLiabilities	0.25	pure
CY2023	us-gaap	Defined Benefit Plan Plan Assets Level3 Reconciliation Increase For Purchase DefinedBenefitPlanPlanAssetsLevel3ReconciliationIncreaseForPurchase	3000000	usd
CY2022	us-gaap	Defined Benefit Plan Plan Assets Level3 Reconciliation Increase For Purchase DefinedBenefitPlanPlanAssetsLevel3ReconciliationIncreaseForPurchase	3000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	64273000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	84308000	usd
CY2020Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	88960000	usd
CY2023	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2873000	usd
CY2022	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2313000	usd
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2168000	usd
CY2023	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	5104000	usd
CY2022	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	5667000	usd
CY2021	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	5693000	usd
CY2023	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-1916000	usd
CY2022	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	16681000	usd
CY2021	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	1127000	usd
CY2023	us-gaap	Defined Benefit Plan Settlements Benefit Obligation DefinedBenefitPlanSettlementsBenefitObligation	13861000	usd
CY2022	us-gaap	Defined Benefit Plan Settlements Benefit Obligation DefinedBenefitPlanSettlementsBenefitObligation	-0	usd
CY2021	us-gaap	Defined Benefit Plan Settlements Benefit Obligation DefinedBenefitPlanSettlementsBenefitObligation	-0	usd
CY2023Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	50097000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	64273000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	84308000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	45378000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	56779000	usd
CY2020Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	56495000	usd
CY2023	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	2827000	usd
CY2022	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	-7337000	usd
CY2021	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	4374000	usd
CY2023	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1603000	usd
CY2022	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1603000	usd
CY2021	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1603000	usd
CY2023	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	5104000	usd
CY2022	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	5667000	usd
CY2021	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	5693000	usd
CY2023	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	13861000	usd
CY2022	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	-0	usd
CY2021	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	-0	usd
CY2023Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	30843000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	45378000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	56779000	usd
CY2023	tdw	Defined Benefit Plan Unfunded Status Of Plan DefinedBenefitPlanUnfundedStatusOfPlan	19254000	usd
CY2022	tdw	Defined Benefit Plan Unfunded Status Of Plan DefinedBenefitPlanUnfundedStatusOfPlan	18895000	usd
CY2021	tdw	Defined Benefit Plan Unfunded Status Of Plan DefinedBenefitPlanUnfundedStatusOfPlan	27529000	usd
CY2023Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	1572000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	1575000	usd
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	1578000	usd
CY2023Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	17682000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	17320000	usd
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	25951000	usd
CY2023Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	19254000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	18895000	usd
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	27529000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	50097000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	64273000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	30843000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	45378000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0525	pure
CY2022Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0547	pure
CY2023Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	4710000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	4648000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	4567000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	4466000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	4360000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	19834000	usd
CY2023Q4	tdw	Defined Benefit Plan Expected Future Benefit Payments DefinedBenefitPlanExpectedFutureBenefitPayments	42585000	usd
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	1521436
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	2466167
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	3037187
CY2023	tdw	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodGrantDateFairValue	5407000	usd
CY2022	tdw	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodGrantDateFairValue	3561000	usd
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CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	20749000	usd
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	125000000
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	125000000
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	52259303
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50554179
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3000000
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3000000
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2022	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0
CY2023	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	0	usd
CY2017	tdw	Class Of Warrant Or Right Issued During Period ClassOfWarrantOrRightIssuedDuringPeriod	11543814
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	34989000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	35425000	usd
CY2023Q4	tdw	Accrued Vessel Expenses AccruedVesselExpenses	48076000	usd
CY2022Q4	tdw	Accrued Vessel Expenses AccruedVesselExpenses	47307000	usd
CY2023Q4	us-gaap	Interest Payable Current InterestPayableCurrent	17128000	usd
CY2022Q4	us-gaap	Interest Payable Current InterestPayableCurrent	2037000	usd
CY2023Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	25397000	usd
CY2023Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	125590000	usd
CY2022Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	105518000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	44461000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	39355000	usd
CY2023Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	10672000	usd
CY2022Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	10968000	usd
CY2023Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	55133000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	50323000	usd
CY2023Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	19003000	usd
CY2022Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	17383000	usd
CY2023Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	27319000	usd
CY2022Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	35468000	usd
CY2023Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	18663000	usd
CY2022Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	14992000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	64985000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	67843000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1009985000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	647684000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	371033000	usd
CY2023	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	8701000	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	250000	usd
CY2021	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-2901000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-0	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-0	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	400000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	-0	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	714000	usd
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	15643000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	182215000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	26708000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-95016000	usd
CY2023	us-gaap	Depreciation And Amortization DepreciationAndAmortization	180331000	usd
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	119160000	usd
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	114544000	usd
CY2023	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	45852000	usd
CY2022	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	16637000	usd
CY2021	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	8951000	usd
CY2023Q4	us-gaap	Assets Assets	2062774000	usd
CY2022Q4	us-gaap	Assets Assets	1297656000	usd
CY2021Q4	us-gaap	Assets Assets	1095780000	usd
CY2020Q4	us-gaap	Restructuring Reserve RestructuringReserve	3335000	usd
CY2021	us-gaap	Restructuring Charges RestructuringCharges	174000	usd
CY2021	us-gaap	Payments For Restructuring PaymentsForRestructuring	2000000	usd
CY2021Q4	us-gaap	Restructuring Reserve RestructuringReserve	1509000	usd
CY2022	us-gaap	Restructuring Charges RestructuringCharges	5680000	usd
CY2022	us-gaap	Payments For Restructuring PaymentsForRestructuring	764000	usd
CY2022Q4	us-gaap	Restructuring Reserve RestructuringReserve	6425000	usd
CY2023	us-gaap	Restructuring Charges RestructuringCharges	27000	usd
CY2023	us-gaap	Payments For Restructuring PaymentsForRestructuring	6452000	usd
CY2023Q4	us-gaap	Restructuring Reserve RestructuringReserve	0	usd

Files In Submission

Name	View Source	Status
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0001437749-24-006108-index.html	Edgar Link	pending
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$TDW
TIDEWATER INC Stock $tdw

2024 Q1 Form 10-K Financial Statement

#000143774924006108 Filed on February 29, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TDW TIDEWATER INC Stock $tdw

2024 Q1 Form 10-K Financial Statement

#000143774924006108 Filed on February 29, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TDW
TIDEWATER INC Stock $tdw