10-K Filing

SEACOR MARINE HOLDINGS INC. CIK: 1690334 FY 2023

Filing Information

Form Type	10-K
Accession Number	`0000950170-24-023158`
Period End Date	20231231
Filing Date	20240229
Fiscal Year	2023
Fiscal Period	FY
XBRL Instance	smhi-20231231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 109 Income Statement 105 Cash Flow Statement 187 Stockholders Equity 36 Comprehensive Income 30

Balance Sheet 109 line items

Line Item	Tag	Value	Unit	Period
Trade receivables, allowance for credit loss	`AllowanceForDoubtfulAccountsReceivableCurrent`	$1.65M	USD	Point-in-time
Trade receivables, allowance for credit loss	`AllowanceForDoubtfulAccountsReceivableCurrent`	$4.54M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$39.96M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$67.45M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$3.08M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	27.67M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	26.95M	shares	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$16.68M	USD	Point-in-time
Shares held in treasury (in shares)	`TreasuryStockCommonShares`	481,014.00	shares	Point-in-time
Shares held in treasury (in shares)	`TreasuryStockCommonShares`	248,638.00	shares	Point-in-time
Trade, net of allowance for credit loss accounts of $4,543 and $1,650 in 2023 and 2022, respectively	`AccountsReceivableNetCurrent`	$54.39M	USD	Point-in-time
Trade, net of allowance for credit loss accounts of $4,543 and $1,650 in 2023 and 2022, respectively	`AccountsReceivableNetCurrent`	$63.73M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$11.05M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$7.38M	USD	Point-in-time
Note receivable	`NoteReceivableCurrent`	-	USD	Point-in-time
Note receivable	`NoteReceivableCurrent`	$15.00M	USD	Point-in-time
Tax receivable	`IncomeTaxesReceivable`	$983.00K	USD	Point-in-time
Tax receivable	`IncomeTaxesReceivable`	$578.00K	USD	Point-in-time
Inventories	`InventoryNet`	$1.61M	USD	Point-in-time
Inventories	`InventoryNet`	$2.12M	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$2.69M	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$3.05M	USD	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$6.75M	USD	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$500.00K	USD	Point-in-time
Total current assets	`AssetsCurrent`	$164.69M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$132.31M	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$918.82M	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.01B	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$967.68M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$324.14M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$302.33M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$310.78M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$656.90M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$705.75M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$594.68M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$10.36M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$8.11M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$605.04M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$665.02M	USD	Point-in-time
Right-of-use asset - operating leases	`OperatingLeaseRightOfUseAsset`	$4.29M	USD	Point-in-time
Right-of-use asset - operating leases	`OperatingLeaseRightOfUseAsset`	$6.21M	USD	Point-in-time
Right-of-use asset - finance leases	`FinanceLeaseRightOfUseAsset`	$37.00K	USD	Point-in-time
Right-of-use asset - finance leases	`FinanceLeaseRightOfUseAsset`	$6.81M	USD	Point-in-time
Investments, at equity, and advances to 50% or less owned companies	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$3.02M	USD	Point-in-time
Investments, at equity, and advances to 50% or less owned companies	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$4.12M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$2.15M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$2.00M	USD	Point-in-time
Total assets	`Assets`	$815.37M	USD	Point-in-time
Total assets	`Assets`	$780.34M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$2.36M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$1.59M	USD	Point-in-time
Current portion of finance lease liabilities	`FinanceLeaseLiabilityCurrent`	$468.00K	USD	Point-in-time
Current portion of finance lease liabilities	`FinanceLeaseLiabilityCurrent`	$35.00K	USD	Point-in-time
Recourse	`RecourseLongTermDebtCurrent`	$61.51M	USD	Point-in-time
Recourse	`RecourseLongTermDebtCurrent`	$28.36M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$37.95M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$27.56M	USD	Point-in-time
Accrued wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$5.08M	USD	Point-in-time
Accrued wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$4.36M	USD	Point-in-time
Accrued interest	`InterestAndDividendsPayableCurrent`	$1.85M	USD	Point-in-time
Accrued interest	`InterestAndDividendsPayableCurrent`	$2.31M	USD	Point-in-time
Accrued capital, repair and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$2.47M	USD	Point-in-time
Accrued capital, repair and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$2.75M	USD	Point-in-time
Unearned revenue	`ContractWithCustomerLiabilityCurrent`	$2.33M	USD	Point-in-time
Unearned revenue	`ContractWithCustomerLiabilityCurrent`	$687.00K	USD	Point-in-time
Accrued insurance deductibles and premiums	`AccruedInsuranceCurrent`	$3.19M	USD	Point-in-time
Accrued insurance deductibles and premiums	`AccruedInsuranceCurrent`	$2.43M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$4.69M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$6.25M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$77.09M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$121.16M	USD	Point-in-time
Long-term operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$3.53M	USD	Point-in-time
Long-term operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$4.74M	USD	Point-in-time
Long-term finance lease liabilities	`FinanceLeaseLiabilityNoncurrent`	$6.78M	USD	Point-in-time
Long-term finance lease liabilities	`FinanceLeaseLiabilityNoncurrent`	$6.00K	USD	Point-in-time
Recourse	`RecourseLongTermDebtNoncurrent`	$254.65M	USD	Point-in-time
Recourse	`RecourseLongTermDebtNoncurrent`	$287.54M	USD	Point-in-time
Non-recourse	`NonRecourseLongTermDebtNoncurrent`	$5.47M	USD	Point-in-time
Non-recourse	`NonRecourseLongTermDebtNoncurrent`	-	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$35.72M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$40.78M	USD	Point-in-time
Deferred gains and other liabilities	`OtherLiabilitiesNoncurrent`	$2.23M	USD	Point-in-time
Deferred gains and other liabilities	`OtherLiabilitiesNoncurrent`	$2.64M	USD	Point-in-time
Total liabilities	`Liabilities`	$406.11M	USD	Point-in-time
Total liabilities	`Liabilities`	$436.22M	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 27,665,792 and 26,950,799 shares issued in 2023 and 2022, respectively	`CommonStockValue`	$272.00K	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 27,665,792 and 26,950,799 shares issued in 2023 and 2022, respectively	`CommonStockValue`	$280.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$466.67M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$472.69M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-93.11M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-102.42M	USD	Point-in-time
Shares held in treasury of 481,014 and 248,638 in 2023 and 2022, respectively, at cost	`TreasuryStockValue`	$4.22M	USD	Point-in-time
Shares held in treasury of 481,014 and 248,638 in 2023 and 2022, respectively, at cost	`TreasuryStockValue`	$1.85M	USD	Point-in-time
Accumulated other comprehensive income, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$6.85M	USD	Point-in-time
Accumulated other comprehensive income, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$7.58M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$373.90M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$378.82M	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$321.00K	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$321.00K	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$401.84M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$379.15M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$446.54M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$374.22M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$815.37M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$780.34M	USD	Point-in-time

Income Statement 105 line items

Line Item	Tag	Value	Unit	Period
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$170.94M	USD	Annual
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$217.32M	USD	Annual
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$279.51M	USD	Annual
Operating	`OperatingCostsAndExpenses`	$171.99M	USD	Annual
Operating	`OperatingCostsAndExpenses`	$159.65M	USD	Annual
Operating	`OperatingCostsAndExpenses`	$127.41M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$37.64M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$49.18M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$40.91M	USD	Annual
Lease expense	`LeaseExpense`	$3.87M	USD	Annual
Lease expense	`LeaseExpense`	$6.08M	USD	Annual
Lease expense	`LeaseExpense`	$2.75M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$57.40M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$53.82M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$55.96M	USD	Annual
Costs and expenses	`CostsAndExpenses`	$228.53M	USD	Annual
Costs and expenses	`CostsAndExpenses`	$265.40M	USD	Annual
Costs and expenses	`CostsAndExpenses`	$272.72M	USD	Annual
Gains on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$20.44M	USD	Annual
Gains on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$1.40M	USD	Annual
Gains on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$21.41M	USD	Annual
Operating Income (Loss)	`OperatingIncomeLoss`	$-54.00M	USD	Annual
Operating Income (Loss)	`OperatingIncomeLoss`	$-37.15M	USD	Annual
Operating Income (Loss)	`OperatingIncomeLoss`	$35.52M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$1.44M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$784.00K	USD	Annual
Interest income	`InvestmentIncomeInterest`	$1.30M	USD	Annual
Interest expense	`InterestExpense`	$37.50M	USD	Annual
Interest expense	`InterestExpense`	$29.71M	USD	Annual
Interest expense	`InterestExpense`	$28.11M	USD	Annual
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	-	USD	Annual
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	-	USD	Annual
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	$7.00K	USD	Annual
(Losses) Gains on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$61.99M	USD	Annual
(Losses) Gains on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$10.43M	USD	Annual
(Losses) Gains on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-2.00M	USD	Annual
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$391.00K	USD	Annual
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$608.00K	USD	Annual
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	-	USD	Annual
Foreign currency gains (losses), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$1.66M	USD	Annual
Foreign currency gains (losses), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-2.13M	USD	Annual
Foreign currency gains (losses), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-1.24M	USD	Annual
Gain from return of investments in 50% or less owned companies and other, net	`GainLossFromReturnOfInvestmentsAndOtherNet`	$9.44M	USD	Annual
Gain from return of investments in 50% or less owned companies and other, net	`GainLossFromReturnOfInvestmentsAndOtherNet`	$755.00K	USD	Annual
Gain from return of investments in 50% or less owned companies and other, net	`GainLossFromReturnOfInvestmentsAndOtherNet`	-	USD	Annual
Nonoperating income (expense)	`NonoperatingIncomeExpense`	$-39.59M	USD	Annual
Nonoperating income (expense)	`NonoperatingIncomeExpense`	$43.77M	USD	Annual
Nonoperating income (expense)	`NonoperatingIncomeExpense`	$-16.08M	USD	Annual
(Loss) Income from Continuing Operations Before Income Tax Expense and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$6.63M	USD	Annual
(Loss) Income from Continuing Operations Before Income Tax Expense and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-70.08M	USD	Annual
(Loss) Income from Continuing Operations Before Income Tax Expense and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-4.07M	USD	Annual
Current	`CurrentIncomeTaxExpenseBenefit`	$13.86M	USD	Annual
Current	`CurrentIncomeTaxExpenseBenefit`	$6.63M	USD	Annual
Current	`CurrentIncomeTaxExpenseBenefit`	$8.48M	USD	Annual
Deferred	`DeferredIncomeTaxExpenseBenefit`	$-5.06M	USD	Annual
Deferred	`DeferredIncomeTaxExpenseBenefit`	$4.86M	USD	Annual
Deferred	`DeferredIncomeTaxExpenseBenefit`	$97.00K	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$8.58M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$11.49M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$8.80M	USD	Annual
Loss from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-78.66M	USD	Annual
Loss from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-12.87M	USD	Annual
Loss from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-4.87M	USD	Annual
Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$15.08M	USD	Annual
Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$3.56M	USD	Annual
Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$7.01M	USD	Annual
(Loss) Income from Continuing Operations	`IncomeLossFromContinuingOperations`	$-9.31M	USD	Annual
(Loss) Income from Continuing Operations	`IncomeLossFromContinuingOperations`	$-71.65M	USD	Annual
(Loss) Income from Continuing Operations	`IncomeLossFromContinuingOperations`	$10.21M	USD	Annual
Income on Discontinued Operations, Net of Tax (see Note 18)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$22.93M	USD	Annual
Income on Discontinued Operations, Net of Tax (see Note 18)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	Annual
Income on Discontinued Operations, Net of Tax (see Note 18)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	Annual
Net (Loss) Income	`ProfitLoss`	$-71.65M	USD	Annual
Net (Loss) Income	`ProfitLoss`	$33.14M	USD	Annual
Net (Loss) Income	`ProfitLoss`	$-9.31M	USD	Annual
Net Income attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Net Income attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.00K	USD	Annual
Net Income attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.00K	USD	Annual
Net (Loss) Income attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-71.65M	USD	Annual
Net (Loss) Income attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$33.14M	USD	Annual
Net (Loss) Income attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-9.31M	USD	Annual
Basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.40	USD	Annual
Basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-0.34	USD	Annual
Basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-2.69	USD	Annual
Diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-2.69	USD	Annual
Diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.40	USD	Annual
Diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-0.34	USD	Annual
Basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	Annual
Basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	Annual
Basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$0.90	USD	Annual
Diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$0.90	USD	Annual
Diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	Annual
Diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	Annual
Basic	`EarningsPerShareBasic`	$-2.69	USD	Annual
Basic	`EarningsPerShareBasic`	$-0.34	USD	Annual
Basic	`EarningsPerShareBasic`	$1.30	USD	Annual
Diluted	`EarningsPerShareDiluted`	$1.30	USD	Annual
Diluted	`EarningsPerShareDiluted`	$-2.69	USD	Annual
Diluted	`EarningsPerShareDiluted`	$-0.34	USD	Annual
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	26.63M	shares	Annual
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	27.08M	shares	Annual
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	25.44M	shares	Annual
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	27.08M	shares	Annual
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	25.50M	shares	Annual
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	26.63M	shares	Annual

Cash Flow Statement 187 line items

Line Item	Tag	Value	Unit	Period
Net (Loss) Income	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-71.65M	USD	Annual
Net (Loss) Income	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-9.31M	USD	Annual
Net (Loss) Income	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$33.14M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$57.40M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$53.82M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$55.96M	USD	Annual
Deferred financing cost amortization	`AmortizationOfFinancingCosts`	$1.58M	USD	Annual
Deferred financing cost amortization	`AmortizationOfFinancingCosts`	$1.10M	USD	Annual
Deferred financing cost amortization	`AmortizationOfFinancingCosts`	$8.00K	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$4.60M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$6.00M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$5.45M	USD	Annual
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$6.69M	USD	Annual
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$6.76M	USD	Annual
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$6.87M	USD	Annual
Allowance for credit losses	`ProvisionForDoubtfulAccounts`	$3.52M	USD	Annual
Allowance for credit losses	`ProvisionForDoubtfulAccounts`	$489.00K	USD	Annual
Allowance for credit losses	`ProvisionForDoubtfulAccounts`	$863.00K	USD	Annual
Gain from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$20.44M	USD	Annual
Gain from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$1.40M	USD	Annual
Gain from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$21.41M	USD	Annual
Gain on the sale of Windcat Workboats	`GainLossOnDispositionOfAssets1`	-	USD	Annual
Gain on the sale of Windcat Workboats	`GainLossOnDispositionOfAssets1`	$22.76M	USD	Annual
Gain on the sale of Windcat Workboats	`GainLossOnDispositionOfAssets1`	-	USD	Annual
Gain from return of investments in 50% or less owned companies	`GainLossFromReturnOfInvestments`	-	USD	Annual
Gain from return of investments in 50% or less owned companies	`GainLossFromReturnOfInvestments`	$9.44M	USD	Annual
Gain from return of investments in 50% or less owned companies	`GainLossFromReturnOfInvestments`	-	USD	Annual
Loss (gain) on debt extinguishment	`GainsLossesOnExtinguishmentOfDebtBeforeWriteOffOfDeferredDebtIssuanceCost`	$12.70M	USD	Annual
Loss (gain) on debt extinguishment	`GainsLossesOnExtinguishmentOfDebtBeforeWriteOffOfDeferredDebtIssuanceCost`	$62.75M	USD	Annual
Loss (gain) on debt extinguishment	`GainsLossesOnExtinguishmentOfDebtBeforeWriteOffOfDeferredDebtIssuanceCost`	$-177.00K	USD	Annual
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	$391.00K	USD	Annual
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	$608.00K	USD	Annual
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	-	USD	Annual
Interest on finance lease	`ProceedsFromInterestOnFinanceLeases`	$244.00K	USD	Annual
Interest on finance lease	`ProceedsFromInterestOnFinanceLeases`	$202.00K	USD	Annual
Interest on finance lease	`ProceedsFromInterestOnFinanceLeases`	$4.00K	USD	Annual
Settlement on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$749.00K	USD	Annual
Settlement on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$2.15M	USD	Annual
Settlement on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$-577.00K	USD	Annual
Currency losses (gains)	`ForeignCurrencyTransactionGainLossBeforeTax`	$1.66M	USD	Annual
Currency losses (gains)	`ForeignCurrencyTransactionGainLossBeforeTax`	$-2.13M	USD	Annual
Currency losses (gains)	`ForeignCurrencyTransactionGainLossBeforeTax`	$-1.24M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-5.06M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$4.86M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$97.00K	USD	Annual
Equity earnings	`IncomeLossFromEquityMethodInvestments`	$15.08M	USD	Annual
Equity earnings	`IncomeLossFromEquityMethodInvestments`	$3.56M	USD	Annual
Equity earnings	`IncomeLossFromEquityMethodInvestments`	$7.01M	USD	Annual
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$5.33M	USD	Annual
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$3.06M	USD	Annual
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$2.24M	USD	Annual
Accounts receivables	`IncreaseDecreaseInReceivables`	$652.00K	USD	Annual
Accounts receivables	`IncreaseDecreaseInReceivables`	$17.21M	USD	Annual
Accounts receivables	`IncreaseDecreaseInReceivables`	$-22.44M	USD	Annual
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-2.56M	USD	Annual
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-3.11M	USD	Annual
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-2.29M	USD	Annual
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$7.50M	USD	Annual
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$471.00K	USD	Annual
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-13.19M	USD	Annual
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$9.26M	USD	Annual
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$8.95M	USD	Annual
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$-14.62M	USD	Annual
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$462.00K	USD	Annual
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$7.00M	USD	Annual
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$10.60M	USD	Annual
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$38.72K	USD	Point-in-time
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$30.14M	USD	Annual
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$44.73M	USD	Annual
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$6.73M	USD	Annual
Proceeds from sale of Windcat Workboats, net of transaction costs and cash sold	`ProceedsFromSaleOfPropertyNetOfTransactionCostsAndCashSold`	-	USD	Annual
Proceeds from sale of Windcat Workboats, net of transaction costs and cash sold	`ProceedsFromSaleOfPropertyNetOfTransactionCostsAndCashSold`	-	USD	Annual
Proceeds from sale of Windcat Workboats, net of transaction costs and cash sold	`ProceedsFromSaleOfPropertyNetOfTransactionCostsAndCashSold`	$38.72M	USD	Annual
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	-	USD	Annual
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	-	USD	Annual
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	$3.01M	USD	Annual
Excess distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	-	USD	Annual
Excess distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	$9.44M	USD	Annual
Excess distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	-	USD	Annual
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	-	USD	Annual
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	$3.35M	USD	Annual
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	$528.00K	USD	Annual
Cash received from acquisition of 50% or less owned company	`CashAcquiredFromAcquisition`	$172.00K	USD	Annual
Cash received from acquisition of 50% or less owned company	`CashAcquiredFromAcquisition`	-	USD	Annual
Cash received from acquisition of 50% or less owned company	`CashAcquiredFromAcquisition`	-	USD	Annual
Proceeds from sale of investment in equity investees	`ProceedsFromSaleOfEquityMethodInvestments`	-	USD	Annual
Proceeds from sale of investment in equity investees	`ProceedsFromSaleOfEquityMethodInvestments`	-	USD	Annual
Proceeds from sale of investment in equity investees	`ProceedsFromSaleOfEquityMethodInvestments`	$66.00M	USD	Point-in-time
Proceeds from sale of investment in equity investees	`ProceedsFromSaleOfEquityMethodInvestments`	$66.00M	USD	Annual
Notes due from others	`IssuanceOfNotesDueFromOthers`	-	USD	Annual
Notes due from others	`IssuanceOfNotesDueFromOthers`	-	USD	Annual
Notes due from others	`IssuanceOfNotesDueFromOthers`	$28.83M	USD	Annual
Principal payments on notes due from others	`RepaymentOfNotesReceivableFromOthers`	$13.83M	USD	Annual
Principal payments on notes due from others	`RepaymentOfNotesReceivableFromOthers`	$15.00M	USD	Annual
Principal payments on notes due from others	`RepaymentOfNotesReceivableFromOthers`	-	USD	Annual
Net cash provided by investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$71.80M	USD	Annual
Net cash provided by investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$57.80M	USD	Annual
Net cash provided by investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$49.13M	USD	Annual
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$38.15M	USD	Annual
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$29.16M	USD	Annual
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$78.12M	USD	Annual
Payments on debt extinguishment	`PrepaymentOfLongTermDebt`	-	USD	Annual
Payments on debt extinguishment	`PrepaymentOfLongTermDebt`	$131.60M	USD	Annual
Payments on debt extinguishment	`PrepaymentOfLongTermDebt`	-	USD	Annual
Payments on debt extinguishment costs	`PaymentsOfDebtExtinguishmentCosts`	$755.00K	USD	Annual
Payments on debt extinguishment costs	`PaymentsOfDebtExtinguishmentCosts`	$2.27M	USD	Annual
Payments on debt extinguishment costs	`PaymentsOfDebtExtinguishmentCosts`	$1.83M	USD	Annual
Proceeds from issuance of long-term debt, net of issue costs	`ProceedsFromIssuanceOfLongTermDebt`	$148.47M	USD	Annual
Proceeds from issuance of long-term debt, net of issue costs	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Proceeds from issuance of long-term debt, net of issue costs	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Proceeds from issuance of common stock, net of issue costs	`ProceedsFromIssuanceOfCommonStockNetOfIssueCosts`	$24.00K	USD	Annual
Proceeds from issuance of common stock, net of issue costs	`ProceedsFromIssuanceOfCommonStockNetOfIssueCosts`	-	USD	Annual
Proceeds from issuance of common stock, net of issue costs	`ProceedsFromIssuanceOfCommonStockNetOfIssueCosts`	-	USD	Annual
Proceeds from exercise of stock options and warrants	`ProceedsFromStockOptionsAndWarrantsExercised`	$151.00K	USD	Annual
Proceeds from exercise of stock options and warrants	`ProceedsFromStockOptionsAndWarrantsExercised`	$6.00K	USD	Annual
Proceeds from exercise of stock options and warrants	`ProceedsFromStockOptionsAndWarrantsExercised`	$1.00K	USD	Annual
Payments on finance lease	`FinanceLeasePrincipalPayments`	$531.00K	USD	Annual
Payments on finance lease	`FinanceLeasePrincipalPayments`	$351.00K	USD	Annual
Payments on finance lease	`FinanceLeasePrincipalPayments`	$30.00K	USD	Annual
Tax withholdings on restricted stock vesting and director share awards	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$2.37M	USD	Annual
Tax withholdings on restricted stock vesting and director share awards	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$272.00K	USD	Annual
Tax withholdings on restricted stock vesting and director share awards	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$732.00K	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-16.99M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-79.18M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-41.35M	USD	Annual
Effects of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-22.00K	USD	Annual
Effects of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-4.00K	USD	Annual
Effects of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.00K	USD	Annual
Net Change in Cash, Cash Equivalents and Restricted Cash, Continuing Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseContinuingOperationsIncludingExchangeRateEffect`	$1.85M	USD	Annual
Net Change in Cash, Cash Equivalents and Restricted Cash, Continuing Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseContinuingOperationsIncludingExchangeRateEffect`	$41.09M	USD	Annual
Net Change in Cash, Cash Equivalents and Restricted Cash, Continuing Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseContinuingOperationsIncludingExchangeRateEffect`	$1.82M	USD	Annual
Operating Activities	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	-	USD	Annual
Operating Activities	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$-171.00K	USD	Annual
Operating Activities	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	-	USD	Annual
Investing Activities	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	-	USD	Annual
Investing Activities	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	-	USD	Annual
Investing Activities	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	-	USD	Annual
Financing Activities	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	-	USD	Annual
Financing Activities	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	-	USD	Annual
Financing Activities	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	-	USD	Annual
Effects of Exchange Rate Changes on Cash, Restricted Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	-	USD	Annual
Effects of Exchange Rate Changes on Cash, Restricted Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	-	USD	Annual
Effects of Exchange Rate Changes on Cash, Restricted Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	-	USD	Annual
Net Change in Cash, Restricted Cash and Cash Equivalents on Discontinued Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperationsIncludingExchangeRateEffect`	-	USD	Annual
Net Change in Cash, Restricted Cash and Cash Equivalents on Discontinued Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperationsIncludingExchangeRateEffect`	$-171.00K	USD	Annual
Net Change in Cash, Restricted Cash and Cash Equivalents on Discontinued Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperationsIncludingExchangeRateEffect`	-	USD	Annual
Net Change in Cash, Cash Equivalents and Restricted Cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$1.68M	USD	Annual
Net Change in Cash, Cash Equivalents and Restricted Cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$1.82M	USD	Annual
Net Change in Cash, Cash Equivalents and Restricted Cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$41.09M	USD	Annual
Cash, Cash Equivalents and Restricted Cash, Beginning of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$39.54M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, Beginning of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$43.05M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, Beginning of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$41.22M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, Beginning of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$84.13M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, End of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$39.54M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, End of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$43.05M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, End of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$41.22M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, End of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$84.13M	USD	Point-in-time
Cash paid for interest, excluding capitalized interest	`InterestPaidNet`	$31.45M	USD	Annual
Cash paid for interest, excluding capitalized interest	`InterestPaidNet`	$25.24M	USD	Annual
Cash paid for interest, excluding capitalized interest	`InterestPaidNet`	$24.14M	USD	Annual
Income taxes (paid) refunded, net	`IncomeTaxesPaidNet`	$-2.96M	USD	Annual
Income taxes (paid) refunded, net	`IncomeTaxesPaidNet`	$885.00K	USD	Annual
Income taxes (paid) refunded, net	`IncomeTaxesPaidNet`	$32.76M	USD	Annual
Distribution from equity investee	`TransferOfInvestments`	$2.54M	USD	Annual
Distribution from equity investee	`TransferOfInvestments`	-	USD	Annual
Distribution from equity investee	`TransferOfInvestments`	-	USD	Annual
Acquisition of 50% or less owned company	`NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1`	$23.04M	USD	Annual
Acquisition of 50% or less owned company	`NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1`	-	USD	Annual
Acquisition of 50% or less owned company	`NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1`	-	USD	Annual
Increase in long-term debt related to asset purchases	`NoncashIncreaseInLongTermDebtRelatedToAssetPurchases`	-	USD	Annual
Increase in long-term debt related to asset purchases	`NoncashIncreaseInLongTermDebtRelatedToAssetPurchases`	$6.50M	USD	Annual
Increase in long-term debt related to asset purchases	`NoncashIncreaseInLongTermDebtRelatedToAssetPurchases`	-	USD	Annual
Decrease in debt related to debt settlement	`IncreaseDecreaseInDebtRelatedToDebtSettlement`	-	USD	Annual
Decrease in debt related to debt settlement	`IncreaseDecreaseInDebtRelatedToDebtSettlement`	-	USD	Annual
Decrease in debt related to debt settlement	`IncreaseDecreaseInDebtRelatedToDebtSettlement`	$62.75M	USD	Annual
Increase in capital expenditures in accounts payable and accrued liabilities	`IncreaseDecreaseInCapitalExpendituresInAccountsPayableAndAccruedLiabilities`	-	USD	Annual
Increase in capital expenditures in accounts payable and accrued liabilities	`IncreaseDecreaseInCapitalExpendituresInAccountsPayableAndAccruedLiabilities`	$371.00K	USD	Annual
Increase in capital expenditures in accounts payable and accrued liabilities	`IncreaseDecreaseInCapitalExpendituresInAccountsPayableAndAccruedLiabilities`	$10.38M	USD	Annual
Exchange of property and equipment	`ExchangeOfPropertyAndEquipment`	$8.92M	USD	Annual
Exchange of property and equipment	`ExchangeOfPropertyAndEquipment`	-	USD	Annual
Exchange of property and equipment	`ExchangeOfPropertyAndEquipment`	-	USD	Annual
Recognition of a new right-of-use asset - operating leases	`RecognitionOfNewRightOfUseAssetOperatingLeases`	$3.58M	USD	Annual
Recognition of a new right-of-use asset - operating leases	`RecognitionOfNewRightOfUseAssetOperatingLeases`	$499.00K	USD	Annual
Recognition of a new right-of-use asset - operating leases	`RecognitionOfNewRightOfUseAssetOperatingLeases`	$2.36M	USD	Annual
Recognition of a new right-of-use asset - finance leases	`RecognitionOfNewRightOfUseAssetFinancingLeases`	-	USD	Annual
Recognition of a new right-of-use asset - finance leases	`RecognitionOfNewRightOfUseAssetFinancingLeases`	-	USD	Annual
Recognition of a new right-of-use asset - finance leases	`RecognitionOfNewRightOfUseAssetFinancingLeases`	$7.25M	USD	Annual

Stockholders Equity 36 line items

Line Item	Tag	Value	Unit	Period
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$401.84M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$379.15M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$446.54M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$374.22M	USD	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	27.67M	shares	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	26.95M	shares	Point-in-time
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$24.00K	USD	Annual
Restricted stock grants	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	$6.00K	USD	Annual
Restricted stock grants	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	$9.00K	USD	Annual
Restricted stock grants	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	$8.00K	USD	Annual
Amortization of share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$5.99M	USD	Annual
Amortization of share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$5.00M	USD	Annual
Amortization of share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$4.59M	USD	Annual
Exercise of options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$6.00K	USD	Annual
Exercise of options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$151.00K	USD	Annual
Exercise of options (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	0.00	shares	Annual
Exercise of options (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	834.00	shares	Annual
Exercise of options (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	34,492.00	shares	Annual
Exercise of warrants	`StockRepurchasedDuringPeriodValueExerciseOfWarrants`	$1.00K	USD	Annual
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$672.00K	USD	Annual
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$2.37M	USD	Annual
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$272.00K	USD	Annual
Acquisition of 50% or less owned company	`StockIssuedDuringPeriodValueAcquisitions`	$5.33M	USD	Annual
Sale of Windcat Workboats	`SaleOfWindcatWorkboats`	$4.20M	USD	Annual
Net (Loss) Income	`ProfitLoss`	$-71.65M	USD	Annual
Net (Loss) Income	`ProfitLoss`	$33.14M	USD	Annual
Net (Loss) Income	`ProfitLoss`	$-9.31M	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossReclassificationNetOfTax`	$730.00K	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossReclassificationNetOfTax`	$238.00K	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossReclassificationNetOfTax`	$5.26M	USD	Annual
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$401.84M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$379.15M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$446.54M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$374.22M	USD	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	27.67M	shares	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	26.95M	shares	Point-in-time

Comprehensive Income 30 line items

Line Item	Tag	Value	Unit	Period
Reclassification of derivative gains (losses) on cash flow hedges to equity in losses	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	Annual
Reclassification of derivative gains (losses) on cash flow hedges to equity in losses	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	Annual
Reclassification of derivative gains (losses) on cash flow hedges to equity in losses	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	Annual
Net (Loss) Income	`ProfitLoss`	$-71.65M	USD	Annual
Net (Loss) Income	`ProfitLoss`	$33.14M	USD	Annual
Net (Loss) Income	`ProfitLoss`	$-9.31M	USD	Annual
Foreign currency translation gains (losses), net	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-4.45M	USD	Annual
Foreign currency translation gains (losses), net	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$3.99M	USD	Annual
Foreign currency translation gains (losses), net	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$1.25M	USD	Annual
Derivative gains (losses) on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax`	$56.00K	USD	Annual
Derivative gains (losses) on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax`	$1.61M	USD	Annual
Derivative gains (losses) on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax`	$219.00K	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$-1.21M	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$730.00K	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$5.26M	USD	Annual
Income tax expense	`OtherComprehensiveIncomeLossTax`	-	USD	Annual
Income tax expense	`OtherComprehensiveIncomeLossTax`	-	USD	Annual
Income tax expense	`OtherComprehensiveIncomeLossTax`	-	USD	Annual
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$5.26M	USD	Annual
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$730.00K	USD	Annual
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-1.21M	USD	Annual
Comprehensive (Loss) Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$38.40M	USD	Annual
Comprehensive (Loss) Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-8.58M	USD	Annual
Comprehensive (Loss) Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-72.86M	USD	Annual
Comprehensive Income Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.00K	USD	Annual
Comprehensive Income Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.00K	USD	Annual
Comprehensive Income Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	Annual
Comprehensive (Loss) Income Attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-8.58M	USD	Annual
Comprehensive (Loss) Income Attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-72.86M	USD	Annual
Comprehensive (Loss) Income Attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$38.40M	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.