10-Q Filing

SEACOR MARINE HOLDINGS INC. CIK: 1690334 Q3 2022

Filing Information

Form Type	10-Q
Accession Number	`0001564590-22-036433`
Period End Date	20220930
Filing Date	20221102
Fiscal Year	2022
Fiscal Period	Q3
XBRL Instance	smhi-10q_20220930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 117 Income Statement 132 Cash Flow Statement 123 Stockholders Equity 36 Comprehensive Income 32

Balance Sheet 117 line items

Line Item	Tag	Value	Unit	Period
Trade receivables, allowance for credit loss	`AllowanceForDoubtfulAccountsReceivableCurrent`	$1.64M	USD	Point-in-time
Trade receivables, allowance for credit loss	`AllowanceForDoubtfulAccountsReceivableCurrent`	$1.31M	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
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$47.51M	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`	$37.62M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	26.12M	shares	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$3.30M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	26.95M	shares	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$3.60M	USD	Point-in-time
Shares held in treasury (in shares)	`TreasuryStockShares`	127,887.00	shares	Point-in-time
Shares held in treasury (in shares)	`TreasuryStockShares`	248,638.00	shares	Point-in-time
Trade, net of allowance for credit loss accounts of $1,639 and $1,312 in 2022 and 2021, respectively	`AccountsReceivableNetCurrent`	$58.57M	USD	Point-in-time
Trade, net of allowance for credit loss accounts of $1,639 and $1,312 in 2022 and 2021, respectively	`AccountsReceivableNetCurrent`	$55.54M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$6.65M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$6.12M	USD	Point-in-time
Note receivable	`NoteReceivableCurrent`	$20.00M	USD	Point-in-time
Note receivable	`NoteReceivableCurrent`	-	USD	Point-in-time
Tax receivable	`IncomeTaxesReceivable`	$1.24M	USD	Point-in-time
Tax receivable	`IncomeTaxesReceivable`	$79.00K	USD	Point-in-time
Inventories	`InventoryNet`	$2.06M	USD	Point-in-time
Inventories	`InventoryNet`	$928.00K	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$4.70M	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$3.73M	USD	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$6.00M	USD	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$2.23M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$148.87M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$111.01M	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$989.91M	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$992.42M	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.01B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$303.18M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$321.90M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$302.33M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$686.73M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$705.75M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$670.52M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$15.53M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$8.42M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$678.95M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$721.28M	USD	Point-in-time
Right-of-use asset - operating leases	`OperatingLeaseRightOfUseAsset`	$4.42M	USD	Point-in-time
Right-of-use asset - operating leases	`OperatingLeaseRightOfUseAsset`	$6.61M	USD	Point-in-time
Right-of-use asset - finance leases	`FinanceLeaseRightOfUseAsset`	$100.00K	USD	Point-in-time
Right-of-use asset - finance leases	`FinanceLeaseRightOfUseAsset`	$6.97M	USD	Point-in-time
Investments, at equity, and advances to 50% or less owned companies	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$71.73M	USD	Point-in-time
Investments, at equity, and advances to 50% or less owned companies	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$1.90M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$1.77M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$1.89M	USD	Point-in-time
Total assets	`Assets`	$912.50M	USD	Point-in-time
Total assets	`Assets`	$842.99M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$1.79M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$1.99M	USD	Point-in-time
Current portion of financing lease liabilities	`FinanceLeaseLiabilityCurrent`	$374.00K	USD	Point-in-time
Current portion of financing lease liabilities	`FinanceLeaseLiabilityCurrent`	$33.00K	USD	Point-in-time
Recourse	`RecourseLongTermDebtCurrent`	$31.60M	USD	Point-in-time
Recourse	`RecourseLongTermDebtCurrent`	$57.57M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$28.42M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$36.25M	USD	Point-in-time
Due to SEACOR Holdings	`DueToAffiliateCurrent`	$274.00K	USD	Point-in-time
Due to SEACOR Holdings	`DueToAffiliateCurrent`	$264.00K	USD	Point-in-time
Accrued wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$3.11M	USD	Point-in-time
Accrued wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$3.71M	USD	Point-in-time
Accrued interest	`InterestAndDividendsPayableCurrent`	$2.27M	USD	Point-in-time
Accrued interest	`InterestAndDividendsPayableCurrent`	$2.99M	USD	Point-in-time
Deferred revenue and unearned revenue	`ContractWithCustomerLiabilityCurrent`	$827.00K	USD	Point-in-time
Deferred revenue and unearned revenue	`ContractWithCustomerLiabilityCurrent`	$1.61M	USD	Point-in-time
Accrued capital, repair, and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$6.78M	USD	Point-in-time
Accrued capital, repair, and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$2.44M	USD	Point-in-time
Accrued insurance deductibles and premiums	`AccruedInsuranceCurrent`	$2.21M	USD	Point-in-time
Accrued insurance deductibles and premiums	`AccruedInsuranceCurrent`	$2.72M	USD	Point-in-time
Accrued professional fees	`AccruedProfessionalFeesCurrent`	$1.21M	USD	Point-in-time
Accrued professional fees	`AccruedProfessionalFeesCurrent`	$2.58M	USD	Point-in-time
Derivatives	`DerivativeLiabilitiesCurrent`	-	USD	Point-in-time
Derivatives	`DerivativeLiabilitiesCurrent`	$1.83M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$6.56M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$3.54M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$84.67M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$118.28M	USD	Point-in-time
Long-term operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$3.76M	USD	Point-in-time
Long-term operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$4.88M	USD	Point-in-time
Long-term financing lease liabilities	`FinanceLeaseLiabilityNoncurrent`	$76.00K	USD	Point-in-time
Long-term financing lease liabilities	`FinanceLeaseLiabilityNoncurrent`	$6.92M	USD	Point-in-time
Recourse	`RecourseLongTermDebtNoncurrent`	$327.30M	USD	Point-in-time
Recourse	`RecourseLongTermDebtNoncurrent`	$277.10M	USD	Point-in-time
Non-recourse	`NonRecourseLongTermDebtNoncurrent`	$5.46M	USD	Point-in-time
Non-recourse	`NonRecourseLongTermDebtNoncurrent`	$5.46M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$40.68M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$39.82M	USD	Point-in-time
Deferred gains and other liabilities	`OtherLiabilitiesNoncurrent`	$2.89M	USD	Point-in-time
Deferred gains and other liabilities	`OtherLiabilitiesNoncurrent`	$2.69M	USD	Point-in-time
Total liabilities	`Liabilities`	$465.96M	USD	Point-in-time
Total liabilities	`Liabilities`	$454.02M	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 26,950,799 and 26,120,124 shares issued in 2022 and 2021, respectively	`CommonStockValue`	$272.00K	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 26,950,799 and 26,120,124 shares issued in 2022 and 2021, respectively	`CommonStockValue`	$262.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$461.93M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$465.45M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-22.91M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-79.77M	USD	Point-in-time
Shares held in treasury of 248,638 and 127,887, respectively, at cost	`TreasuryStockValue`	$1.85M	USD	Point-in-time
Shares held in treasury of 248,638 and 127,887, respectively, at cost	`TreasuryStockValue`	$1.12M	USD	Point-in-time
Accumulated other comprehensive income, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$4.55M	USD	Point-in-time
Accumulated other comprehensive income, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$8.05M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$446.22M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$388.65M	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$321.00K	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$320.00K	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$388.97M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$446.54M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$401.84M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$413.51M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$459.40M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$454.80M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$912.50M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$842.99M	USD	Point-in-time

Income Statement 132 line items

Line Item	Tag	Value	Unit	Period
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$159.40M	USD	3 Qtrs
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$43.66M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$59.79M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$122.97M	USD	3 Qtrs
Operating	`OperatingCostsAndExpenses`	$33.45M	USD	1 Quarter
Operating	`OperatingCostsAndExpenses`	$92.37M	USD	3 Qtrs
Operating	`OperatingCostsAndExpenses`	$127.65M	USD	3 Qtrs
Operating	`OperatingCostsAndExpenses`	$44.01M	USD	1 Quarter
Administrative and general	`GeneralAndAdministrativeExpense`	$9.98M	USD	1 Quarter
Administrative and general	`GeneralAndAdministrativeExpense`	$30.11M	USD	3 Qtrs
Administrative and general	`GeneralAndAdministrativeExpense`	$26.90M	USD	3 Qtrs
Administrative and general	`GeneralAndAdministrativeExpense`	$9.13M	USD	1 Quarter
Lease expense	`LeaseExpense`	$3.24M	USD	3 Qtrs
Lease expense	`LeaseExpense`	$3.42M	USD	3 Qtrs
Lease expense	`LeaseExpense`	$1.17M	USD	1 Quarter
Lease expense	`LeaseExpense`	$1.11M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$14.31M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$43.20M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$13.75M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$42.33M	USD	3 Qtrs
Costs and expenses	`CostsAndExpenses`	$203.33M	USD	3 Qtrs
Costs and expenses	`CostsAndExpenses`	$165.88M	USD	3 Qtrs
Costs and expenses	`CostsAndExpenses`	$68.91M	USD	1 Quarter
Costs and expenses	`CostsAndExpenses`	$58.00M	USD	1 Quarter
(Losses) Gains on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$381.00K	USD	3 Qtrs
(Losses) Gains on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-1.78M	USD	1 Quarter
(Losses) Gains on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$56.00K	USD	1 Quarter
(Losses) Gains on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$20.44M	USD	3 Qtrs
Operating Loss	`OperatingIncomeLoss`	$-22.48M	USD	3 Qtrs
Operating Loss	`OperatingIncomeLoss`	$-43.55M	USD	3 Qtrs
Operating Loss	`OperatingIncomeLoss`	$-14.28M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-10.90M	USD	1 Quarter
Interest income	`InvestmentIncomeExpenseInterest`	$-123.00K	USD	1 Quarter
Interest income	`InvestmentIncomeExpenseInterest`	$96.00K	USD	3 Qtrs
Interest income	`InvestmentIncomeExpenseInterest`	$1.25M	USD	3 Qtrs
Interest income	`InvestmentIncomeExpenseInterest`	$124.00K	USD	1 Quarter
Interest expense	`InterestExpense`	$21.25M	USD	3 Qtrs
Interest expense	`InterestExpense`	$6.40M	USD	1 Quarter
Interest expense	`InterestExpense`	$21.73M	USD	3 Qtrs
Interest expense	`InterestExpense`	$7.63M	USD	1 Quarter
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	-	USD	1 Quarter
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	$7.00K	USD	3 Qtrs
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	-	USD	1 Quarter
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	-	USD	3 Qtrs
Gain on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Gain on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$61.99M	USD	3 Qtrs
Gain on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Gain on debt extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	3 Qtrs
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$2.00K	USD	1 Quarter
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$387.00K	USD	3 Qtrs
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	-	USD	3 Qtrs
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$1.00K	USD	1 Quarter
Foreign currency gains (losses), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$245.00K	USD	1 Quarter
Foreign currency gains (losses), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-878.00K	USD	3 Qtrs
Foreign currency gains (losses), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$2.31M	USD	1 Quarter
Foreign currency gains (losses), net	`ForeignCurrencyTransactionGainLossBeforeTax`	$4.30M	USD	3 Qtrs
Gain from return of investments in 50% or less owned companies and other, net	`GainLossFromReturnOfInvestmentsAndOtherNet`	$9.44M	USD	1 Quarter
Gain from return of investments in 50% or less owned companies and other, net	`GainLossFromReturnOfInvestmentsAndOtherNet`	$618.00K	USD	3 Qtrs
Gain from return of investments in 50% or less owned companies and other, net	`GainLossFromReturnOfInvestmentsAndOtherNet`	$659.00K	USD	1 Quarter
Gain from return of investments in 50% or less owned companies and other, net	`GainLossFromReturnOfInvestmentsAndOtherNet`	$9.44M	USD	3 Qtrs
Nonoperating income expense	`NonoperatingIncomeExpense`	$-16.23M	USD	3 Qtrs
Nonoperating income expense	`NonoperatingIncomeExpense`	$3.41M	USD	1 Quarter
Nonoperating income expense	`NonoperatingIncomeExpense`	$-4.78M	USD	1 Quarter
Nonoperating income expense	`NonoperatingIncomeExpense`	$50.45M	USD	3 Qtrs
(Loss) Income from Continuing Operations Before Income Tax Expense (Benefit) and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$27.98M	USD	3 Qtrs
(Loss) Income from Continuing Operations Before Income Tax Expense (Benefit) and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-59.78M	USD	3 Qtrs
(Loss) Income from Continuing Operations Before Income Tax Expense (Benefit) and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-10.87M	USD	1 Quarter
(Loss) Income from Continuing Operations Before Income Tax Expense (Benefit) and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-15.68M	USD	1 Quarter
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$4.36M	USD	3 Qtrs
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$-725.00K	USD	1 Quarter
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$12.50M	USD	3 Qtrs
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$8.42M	USD	1 Quarter
(Loss) Income from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-10.14M	USD	1 Quarter
(Loss) Income from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-24.10M	USD	1 Quarter
(Loss) Income from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-64.14M	USD	3 Qtrs
(Loss) Income from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$15.47M	USD	3 Qtrs
Equity in Earnings (Losses) Gains of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$-254.00K	USD	1 Quarter
Equity in Earnings (Losses) Gains of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$5.83M	USD	3 Qtrs
Equity in Earnings (Losses) Gains of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$4.31M	USD	1 Quarter
Equity in Earnings (Losses) Gains of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$10.58M	USD	3 Qtrs
(Loss) Income from Continuing Operations	`IncomeLossFromContinuingOperations`	$-24.35M	USD	1 Quarter
(Loss) Income from Continuing Operations	`IncomeLossFromContinuingOperations`	$-58.31M	USD	3 Qtrs
(Loss) Income from Continuing Operations	`IncomeLossFromContinuingOperations`	$26.06M	USD	3 Qtrs
(Loss) Income from Continuing Operations	`IncomeLossFromContinuingOperations`	$-5.83M	USD	1 Quarter
Income on Discontinued Operations, Net of Tax (see Note 13)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	3 Qtrs
Income on Discontinued Operations, Net of Tax (see Note 13)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	1 Quarter
Income on Discontinued Operations, Net of Tax (see Note 13)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$22.93M	USD	3 Qtrs
Income on Discontinued Operations, Net of Tax (see Note 13)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	1 Quarter
Net (Loss) Income	`ProfitLoss`	$-5.83M	USD	1 Quarter
Net (Loss) Income	`ProfitLoss`	$48.98M	USD	3 Qtrs
Net (Loss) Income	`ProfitLoss`	$-58.31M	USD	3 Qtrs
Net (Loss) Income	`ProfitLoss`	$-24.35M	USD	1 Quarter
Net (Loss) Income attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Net (Loss) Income attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.00K	USD	3 Qtrs
Net (Loss) Income attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.00K	USD	3 Qtrs
Net (Loss) Income attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$-2.00K	USD	1 Quarter
Net (Loss) Income attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-24.35M	USD	1 Quarter
Net (Loss) Income attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-58.31M	USD	3 Qtrs
Net (Loss) Income attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$48.98M	USD	3 Qtrs
Net (Loss) Income attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-5.83M	USD	1 Quarter
Basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$1.03	USD	3 Qtrs
Basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-2.19	USD	3 Qtrs
Basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-0.23	USD	1 Quarter
Basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-0.91	USD	1 Quarter
Diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-0.23	USD	1 Quarter
Diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-2.19	USD	3 Qtrs
Diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$1.02	USD	3 Qtrs
Diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-0.91	USD	1 Quarter
Basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$0.90	USD	3 Qtrs
Basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	3 Qtrs
Basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	1 Quarter
Basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	1 Quarter
Diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	1 Quarter
Diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$0.90	USD	3 Qtrs
Diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	1 Quarter
Diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	3 Qtrs
Basic	`EarningsPerShareBasic`	$-0.23	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$-0.91	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.93	USD	3 Qtrs
Basic	`EarningsPerShareBasic`	$-2.19	USD	3 Qtrs
Diluted	`EarningsPerShareDiluted`	$-0.23	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$-2.19	USD	3 Qtrs
Diluted	`EarningsPerShareDiluted`	$1.92	USD	3 Qtrs
Diluted	`EarningsPerShareDiluted`	$-0.91	USD	1 Quarter
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	25.52M	shares	1 Quarter
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	25.42M	shares	3 Qtrs
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	26.59M	shares	3 Qtrs
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	26.73M	shares	1 Quarter
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	26.73M	shares	1 Quarter
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	25.52M	shares	1 Quarter
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	25.43M	shares	3 Qtrs
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	26.59M	shares	3 Qtrs

Cash Flow Statement 123 line items

Line Item	Tag	Value	Unit	Period
Net (Loss) Income	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$58.31M	USD	3 Qtrs
Net (Loss) Income	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-48.98M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$14.31M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$43.20M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$13.75M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$42.33M	USD	3 Qtrs
Deferred financing costs amortization	`AmortizationOfFinancingCosts`	$769.00K	USD	3 Qtrs
Deferred financing costs amortization	`AmortizationOfFinancingCosts`	$1.00M	USD	3 Qtrs
Stock-based compensation expense	`ShareBasedCompensation`	$3.92M	USD	3 Qtrs
Stock-based compensation expense	`ShareBasedCompensation`	$2.63M	USD	3 Qtrs
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$5.24M	USD	3 Qtrs
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$5.25M	USD	3 Qtrs
Allowance for credit losses	`ProvisionForDoubtfulAccounts`	$477.00K	USD	3 Qtrs
Allowance for credit losses	`ProvisionForDoubtfulAccounts`	$278.00K	USD	3 Qtrs
Gain from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$381.00K	USD	3 Qtrs
Gain from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-1.78M	USD	1 Quarter
Gain from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$56.00K	USD	1 Quarter
Gain from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$20.44M	USD	3 Qtrs
Gain on the sale of Windcat Workboats	`GainLossOnDispositionOfAssets1`	$22.76M	USD	3 Qtrs
Gain on the sale of Windcat Workboats	`GainLossOnDispositionOfAssets1`	-	USD	3 Qtrs
Gain from return of investments in 50% or less owned companies	`GainLossFromReturnOfInvestments`	-	USD	3 Qtrs
Gain from return of investments in 50% or less owned companies	`GainLossFromReturnOfInvestments`	$9.44M	USD	3 Qtrs
Gain on debt extinguishment	`GainsLossesOnExtinguishmentOfDebtBeforeWriteOffOfDeferredDebtIssuanceCost`	-	USD	3 Qtrs
Gain on debt extinguishment	`GainsLossesOnExtinguishmentOfDebtBeforeWriteOffOfDeferredDebtIssuanceCost`	$62.75M	USD	3 Qtrs
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	$2.00K	USD	1 Quarter
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	$387.00K	USD	3 Qtrs
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	-	USD	3 Qtrs
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	$1.00K	USD	1 Quarter
Interest on finance leases	`ProceedsFromInterestOnFinanceLeases`	$3.00K	USD	3 Qtrs
Interest on finance leases	`ProceedsFromInterestOnFinanceLeases`	$171.00K	USD	3 Qtrs
Cash settlement payments on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$1.75M	USD	3 Qtrs
Cash settlement payments on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$782.00K	USD	3 Qtrs
Currency (gains) losses	`ForeignCurrencyTransactionGainLossBeforeTax`	$245.00K	USD	1 Quarter
Currency (gains) losses	`ForeignCurrencyTransactionGainLossBeforeTax`	$-878.00K	USD	3 Qtrs
Currency (gains) losses	`ForeignCurrencyTransactionGainLossBeforeTax`	$2.31M	USD	1 Quarter
Currency (gains) losses	`ForeignCurrencyTransactionGainLossBeforeTax`	$4.30M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-860.00K	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$7.64M	USD	3 Qtrs
Equity earnings	`IncomeLossFromEquityMethodInvestments`	$-254.00K	USD	1 Quarter
Equity earnings	`IncomeLossFromEquityMethodInvestments`	$5.83M	USD	3 Qtrs
Equity earnings	`IncomeLossFromEquityMethodInvestments`	$4.31M	USD	1 Quarter
Equity earnings	`IncomeLossFromEquityMethodInvestments`	$10.58M	USD	3 Qtrs
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$4.51M	USD	3 Qtrs
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$2.98M	USD	3 Qtrs
Accounts receivables	`IncreaseDecreaseInReceivables`	$2.96M	USD	3 Qtrs
Accounts receivables	`IncreaseDecreaseInReceivables`	$-23.59M	USD	3 Qtrs
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$737.00K	USD	3 Qtrs
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-1.46M	USD	3 Qtrs
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-7.44M	USD	3 Qtrs
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$6.73M	USD	3 Qtrs
Net cash (used in) provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$-12.58M	USD	3 Qtrs
Net cash (used in) provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$4.94M	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$277.00K	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$6.56M	USD	3 Qtrs
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$30.14M	USD	3 Qtrs
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$6.68M	USD	3 Qtrs
Proceeds from sale of Windcat Workboats, net of transaction costs and cash sold	`ProceedsFromSaleOfPropertyNetOfTransactionCostsAndCashSold`	$38.72M	USD	3 Qtrs
Proceeds from sale of Windcat Workboats, net of transaction costs and cash sold	`ProceedsFromSaleOfPropertyNetOfTransactionCostsAndCashSold`	-	USD	3 Qtrs
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	-	USD	3 Qtrs
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	$736.00K	USD	3 Qtrs
Excess distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	$9.44M	USD	3 Qtrs
Excess distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	-	USD	3 Qtrs
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	$528.00K	USD	3 Qtrs
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	$3.98M	USD	3 Qtrs
Proceeds from sale of investment in equity investees	`ProceedsFromSaleOfEquityMethodInvestments`	$66.00M	USD	3 Qtrs
Proceeds from sale of investment in equity investees	`ProceedsFromSaleOfEquityMethodInvestments`	-	USD	3 Qtrs
Proceeds from sale of investment in equity investees	`ProceedsFromSaleOfEquityMethodInvestments`	$66.00M	USD	Point-in-time
Issuance of notes due from others	`IssuanceOfNotesDueFromOthers`	$28.83M	USD	3 Qtrs
Issuance of notes due from others	`IssuanceOfNotesDueFromOthers`	-	USD	3 Qtrs
Principal payments on notes due from others	`RepaymentOfNotesReceivableFromOthers`	$8.83M	USD	3 Qtrs
Principal payments on notes due from others	`RepaymentOfNotesReceivableFromOthers`	-	USD	3 Qtrs
Net cash provided by investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$52.93M	USD	3 Qtrs
Net cash provided by investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$74.97M	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$30.68M	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$72.14M	USD	3 Qtrs
Payments on debt extinguishment cost	`PaymentsOfDebtExtinguishmentCosts`	-	USD	3 Qtrs
Payments on debt extinguishment cost	`PaymentsOfDebtExtinguishmentCosts`	$755.00K	USD	3 Qtrs
Payments on finance leases	`FinanceLeasePrincipalPayments`	$237.00K	USD	3 Qtrs
Payments on finance leases	`FinanceLeasePrincipalPayments`	$21.00K	USD	3 Qtrs
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	-	USD	3 Qtrs
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$151.00K	USD	3 Qtrs
Issuance of stock	`ProceedsFromIssuanceOfCommonStock`	$10.00K	USD	3 Qtrs
Issuance of stock	`ProceedsFromIssuanceOfCommonStock`	$10.00K	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-30.76M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-72.91M	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-21.00K	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-2.00K	USD	3 Qtrs
Net Change in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseContinuingOperationsIncludingExchangeRateEffect`	$6.99M	USD	3 Qtrs
Net Change in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseContinuingOperationsIncludingExchangeRateEffect`	$9.59M	USD	3 Qtrs
Operating Activities	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	-	USD	3 Qtrs
Operating Activities	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$-171.00K	USD	3 Qtrs
Investing Activities	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	-	USD	3 Qtrs
Investing Activities	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	-	USD	3 Qtrs
Financing Activities	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	-	USD	3 Qtrs
Financing Activities	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	-	USD	3 Qtrs
Net Change in Cash, Restricted Cash and Cash Equivalents on Discontinued Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperationsIncludingExchangeRateEffect`	-	USD	3 Qtrs
Net Change in Cash, Restricted Cash and Cash Equivalents on Discontinued Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperationsIncludingExchangeRateEffect`	$-171.00K	USD	3 Qtrs
Net Change in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$6.82M	USD	3 Qtrs
Net Change in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$9.59M	USD	3 Qtrs
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$41.22M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$39.54M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$46.35M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$50.81M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$41.22M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$39.54M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$46.35M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$50.81M	USD	Point-in-time
Cash paid for interest, excluding capitalized interest	`InterestPaidNet`	$15.23M	USD	3 Qtrs
Cash paid for interest, excluding capitalized interest	`InterestPaidNet`	$14.29M	USD	3 Qtrs
Income taxes refunded, net	`IncomeTaxesPaidNet`	$32.76M	USD	3 Qtrs
Income taxes refunded, net	`IncomeTaxesPaidNet`	$886.00K	USD	3 Qtrs
Increase in long-term debt related to asset purchases	`NoncashIncreaseInLongTermDebtRelatedToAssetPurchases`	-	USD	3 Qtrs
Increase in long-term debt related to asset purchases	`NoncashIncreaseInLongTermDebtRelatedToAssetPurchases`	$6.50M	USD	3 Qtrs
Decrease in debt related to debt settlement	`IncreaseDecreaseInDebtRelatedToDebtSettlement`	-	USD	3 Qtrs
Decrease in debt related to debt settlement	`IncreaseDecreaseInDebtRelatedToDebtSettlement`	$62.75M	USD	3 Qtrs
Decrease in capital expenditures in accounts payable and accrued liabilities	`IncreaseDecreaseInCapitalExpendituresInAccountsPayableAndAccruedLiabilities`	-	USD	3 Qtrs
Decrease in capital expenditures in accounts payable and accrued liabilities	`IncreaseDecreaseInCapitalExpendituresInAccountsPayableAndAccruedLiabilities`	$10.38M	USD	3 Qtrs
Exchange of property and equipment	`ExchangeOfPropertyAndEquipment`	$8.92M	USD	3 Qtrs
Exchange of property and equipment	`ExchangeOfPropertyAndEquipment`	-	USD	3 Qtrs
Recognition of a new right-of-use asset - operating leases	`RecognitionOfNewRightOfUseAssetOperatingLeases`	$163.00K	USD	3 Qtrs
Recognition of a new right-of-use asset - operating leases	`RecognitionOfNewRightOfUseAssetOperatingLeases`	$955.00K	USD	3 Qtrs
Recognition of a new right-of-use asset - financing leases	`RecognitionOfNewRightOfUseAssetFinancingLeases`	-	USD	3 Qtrs
Recognition of a new right-of-use asset - financing leases	`RecognitionOfNewRightOfUseAssetFinancingLeases`	$7.25M	USD	3 Qtrs

Stockholders Equity 36 line items

Line Item	Tag	Value	Unit	Period
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$388.97M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$446.54M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$401.84M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$413.51M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$459.40M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$454.80M	USD	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	26.12M	shares	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	26.95M	shares	Point-in-time
Restricted stock grants	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	$9.00K	USD	3 Qtrs
Restricted stock grants	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	$8.00K	USD	3 Qtrs
Amortization of share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.37M	USD	3 Qtrs
Amortization of share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.23M	USD	1 Quarter
Amortization of share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.29M	USD	1 Quarter
Amortization of share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.76M	USD	3 Qtrs
Exercise of options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$151.00K	USD	3 Qtrs
Exercise of options (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	34,492.00	shares	3 Qtrs
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$272.00K	USD	3 Qtrs
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$672.00K	USD	3 Qtrs
Restricted stock vesting (in shares)	`TreasuryStockSharesAcquired`	120,751.00	shares	3 Qtrs
Sale Of Windcat Workboats	`SaleOfWindcatWorkboats`	$-4.20M	USD	3 Qtrs
Net loss (income)	`ProfitLoss`	$-5.83M	USD	1 Quarter
Net loss (income)	`ProfitLoss`	$48.98M	USD	3 Qtrs
Net loss (income)	`ProfitLoss`	$-58.31M	USD	3 Qtrs
Net loss (income)	`ProfitLoss`	$-24.35M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossReclassificationNetOfTax`	$-2.06M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossReclassificationNetOfTax`	$-63.00K	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossReclassificationNetOfTax`	$4.25M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossReclassificationNetOfTax`	$-1.41M	USD	1 Quarter
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$388.97M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$446.54M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$401.84M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$413.51M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$459.40M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$454.80M	USD	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	26.12M	shares	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	26.95M	shares	Point-in-time

Comprehensive Income 32 line items

Line Item	Tag	Value	Unit	Period
Reclassification of derivative losses on cash flow hedges to equity in earnings	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	3 Qtrs
Reclassification of derivative losses on cash flow hedges to equity in earnings	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	3 Qtrs
Reclassification of derivative losses on cash flow hedges to equity in earnings	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	1 Quarter
Reclassification of derivative losses on cash flow hedges to equity in earnings	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	1 Quarter
Net (Loss) Income	`ProfitLoss`	$-5.83M	USD	1 Quarter
Net (Loss) Income	`ProfitLoss`	$48.98M	USD	3 Qtrs
Net (Loss) Income	`ProfitLoss`	$-58.31M	USD	3 Qtrs
Net (Loss) Income	`ProfitLoss`	$-24.35M	USD	1 Quarter
Foreign currency translation (losses) gains	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-2.15M	USD	1 Quarter
Foreign currency translation (losses) gains	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-6.72M	USD	3 Qtrs
Foreign currency translation (losses) gains	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-504.00K	USD	1 Quarter
Foreign currency translation (losses) gains	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$3.82M	USD	3 Qtrs
Derivative gains (losses) on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-22.00K	USD	3 Qtrs
Derivative gains (losses) on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$365.00K	USD	1 Quarter
Derivative gains (losses) on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$1.52M	USD	3 Qtrs
Derivative gains (losses) on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-54.00K	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-3.51M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-1.41M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$4.25M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-63.00K	USD	1 Quarter
Comprehensive (Loss) Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-25.76M	USD	1 Quarter
Comprehensive (Loss) Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$53.24M	USD	3 Qtrs
Comprehensive (Loss) Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-61.81M	USD	3 Qtrs
Comprehensive (Loss) Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-5.89M	USD	1 Quarter
Comprehensive (Loss) Income Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.00K	USD	3 Qtrs
Comprehensive (Loss) Income Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.00K	USD	3 Qtrs
Comprehensive (Loss) Income Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-2.00K	USD	1 Quarter
Comprehensive (Loss) Income Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Comprehensive (Loss) Income Attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-61.81M	USD	3 Qtrs
Comprehensive (Loss) Income Attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-25.76M	USD	1 Quarter
Comprehensive (Loss) Income Attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-5.89M	USD	1 Quarter
Comprehensive (Loss) Income Attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$53.24M	USD	3 Qtrs

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