10-Q Filing

SEACOR MARINE HOLDINGS INC. CIK: 1690334 Q3 2020

Filing Information

Form Type	10-Q
Accession Number	`0001564590-20-050818`
Period End Date	20200930
Filing Date	20201105
Fiscal Year	2020
Fiscal Period	Q3
XBRL Instance	smhi-10q_20200930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 111 Income Statement 104 Cash Flow Statement 105 Stockholders Equity 48 Comprehensive Income 37

Balance Sheet 111 line items

Line Item	Tag	Value	Unit	Period
Trade receivables, allowance for credit loss	`AllowanceForDoubtfulAccountsReceivableCurrent`	$455.00K	USD	Point-in-time
Trade receivables, allowance for credit loss	`AllowanceForDoubtfulAccountsReceivableCurrent`	$850.00K	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`	$83.94M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$45.18M	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
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	23.44M	shares	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$3.35M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	21.93M	shares	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$3.10M	USD	Point-in-time
Shares held in treasury (in shares)	`TreasuryStockShares`	73,284.00	shares	Point-in-time
Shares held in treasury (in shares)	`TreasuryStockShares`	47,187.00	shares	Point-in-time
Trade, net of allowance for credit loss accounts of $850 and $455 in 2020 and 2019, respectively	`AccountsReceivableNetCurrent`	$54.94M	USD	Point-in-time
Trade, net of allowance for credit loss accounts of $850 and $455 in 2020 and 2019, respectively	`AccountsReceivableNetCurrent`	$49.13M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$18.53M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$17.91M	USD	Point-in-time
Receivable from SEACOR Holdings	`DueFromAffiliateCurrent`	$18.81M	USD	Point-in-time
Tax Receivable	`IncomeTaxesReceivable`	$11.77M	USD	Point-in-time
Inventories	`InventoryNet`	$573.00K	USD	Point-in-time
Inventories	`InventoryNet`	$1.23M	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$3.60M	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$2.61M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$158.55M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$156.13M	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.07B	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.08B	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$976.98M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$358.96M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$400.63M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$334.39M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$669.75M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$618.02M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$743.78M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$74.34M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$56.71M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$692.36M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$800.49M	USD	Point-in-time
Right-of-Use Asset - Operating Leases	`OperatingLeaseRightOfUseAsset`	$17.31M	USD	Point-in-time
Right-of-Use Asset - Operating Leases	`OperatingLeaseRightOfUseAsset`	$8.33M	USD	Point-in-time
Right-of-Use Asset - Finance Leases	`FinanceLeaseRightOfUseAsset`	$137.00K	USD	Point-in-time
Investments, at Equity, and Advances to 50% or Less Owned Companies	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$124.68M	USD	Point-in-time
Investments, at Equity, and Advances to 50% or Less Owned Companies	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$88.93M	USD	Point-in-time
Construction Reserve Funds	`ConstructionReserveFunds`	$12.89M	USD	Point-in-time
Other Assets	`OtherAssetsNoncurrent`	$3.40M	USD	Point-in-time
Other Assets	`OtherAssetsNoncurrent`	$3.15M	USD	Point-in-time
Total assets	`Assets`	$1.01B	USD	Point-in-time
Total assets	`Assets`	$1.06B	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$9.63M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$15.10M	USD	Point-in-time
Current Portion of financing lease liabilities	`FinanceLeaseLiabilityCurrent`	$27.00K	USD	Point-in-time
Recourse	`RecourseLongTermDebtCurrent`	$17.80M	USD	Point-in-time
Recourse	`RecourseLongTermDebtCurrent`	$46.46M	USD	Point-in-time
Non-recourse	`NonRecourseLongTermDebtCurrent`	$5.64M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$29.54M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$25.69M	USD	Point-in-time
Due to SEACOR Holdings	`DueToAffiliateCurrent`	$74.00K	USD	Point-in-time
Accrued wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$1.83M	USD	Point-in-time
Accrued wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$1.55M	USD	Point-in-time
Accrued interest	`InterestAndDividendsPayableCurrent`	$731.00K	USD	Point-in-time
Accrued interest	`InterestAndDividendsPayableCurrent`	$2.89M	USD	Point-in-time
Deferred revenue and unearned revenue	`ContractWithCustomerLiabilityCurrent`	$3.13M	USD	Point-in-time
Deferred revenue and unearned revenue	`ContractWithCustomerLiabilityCurrent`	$5.33M	USD	Point-in-time
Accrued capital, repair and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$11.16M	USD	Point-in-time
Accrued capital, repair and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$16.00M	USD	Point-in-time
Accrued insurance deductibles and premiums	`AccruedInsuranceCurrent`	$2.31M	USD	Point-in-time
Accrued insurance deductibles and premiums	`AccruedInsuranceCurrent`	$3.56M	USD	Point-in-time
Derivatives	`DerivativeLiabilitiesCurrent`	$4.10M	USD	Point-in-time
Derivatives	`DerivativeLiabilitiesCurrent`	$3.01M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$5.03M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$5.69M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$94.82M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$121.49M	USD	Point-in-time
Long-Term Operating Lease Liabilities	`OperatingLeaseLiabilityNoncurrent`	$5.69M	USD	Point-in-time
Long-Term Operating Lease Liabilities	`OperatingLeaseLiabilityNoncurrent`	$9.82M	USD	Point-in-time
Long-Term Financing Lease Liabilities	`FinanceLeaseLiabilityNoncurrent`	$113.00K	USD	Point-in-time
Recourse	`RecourseLongTermDebtNoncurrent`	$239.94M	USD	Point-in-time
Recourse	`RecourseLongTermDebtNoncurrent`	$315.33M	USD	Point-in-time
Non-recourse	`NonRecourseLongTermDebtNoncurrent`	$140.31M	USD	Point-in-time
Non-recourse	`NonRecourseLongTermDebtNoncurrent`	$137.64M	USD	Point-in-time
Conversion Option Liability on Convertible Senior Notes	`DerivativeLiabilitiesNoncurrent`	$5.21M	USD	Point-in-time
Conversion Option Liability on Convertible Senior Notes	`DerivativeLiabilitiesNoncurrent`	$1.00K	USD	Point-in-time
Deferred Income Taxes	`DeferredIncomeTaxLiabilitiesNet`	$36.45M	USD	Point-in-time
Deferred Income Taxes	`DeferredIncomeTaxLiabilitiesNet`	$33.91M	USD	Point-in-time
Deferred Gains and Other Liabilities	`OtherLiabilitiesNoncurrent`	$6.27M	USD	Point-in-time
Deferred Gains and Other Liabilities	`OtherLiabilitiesNoncurrent`	$3.81M	USD	Point-in-time
Total liabilities	`Liabilities`	$530.27M	USD	Point-in-time
Total liabilities	`Liabilities`	$620.52M	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 23,435,234 and 21,928,674 shares issued in 2020 and 2019, respectively	`CommonStockValue`	$235.00K	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 23,435,234 and 21,928,674 shares issued in 2020 and 2019, respectively	`CommonStockValue`	$219.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$450.32M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$429.32M	USD	Point-in-time
(Accumulated Deficit) Retained earnings	`RetainedEarningsAccumulatedDeficit`	$27.08M	USD	Point-in-time
(Accumulated Deficit) Retained earnings	`RetainedEarningsAccumulatedDeficit`	$-13.02M	USD	Point-in-time
Shares held in treasury of 73,284 and 47,187, respectively, at cost	`TreasuryStockValue`	$848.00K	USD	Point-in-time
Shares held in treasury of 73,284 and 47,187, respectively, at cost	`TreasuryStockValue`	$669.00K	USD	Point-in-time
Accumulated other comprehensive gain (loss), net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$1.55M	USD	Point-in-time
Accumulated other comprehensive gain (loss), net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-380.00K	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$436.30M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$457.49M	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$21.43M	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$350.00K	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$565.35M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$478.92M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$451.36M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$511.24M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$436.65M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$494.15M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$1.01B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$1.06B	USD	Point-in-time

Income Statement 104 line items

Line Item	Tag	Value	Unit	Period
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$129.32M	USD	3 Qtrs
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$45.70M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$54.70M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$152.42M	USD	3 Qtrs
Operating	`OperatingCostsAndExpenses`	$97.75M	USD	3 Qtrs
Operating	`OperatingCostsAndExpenses`	$27.21M	USD	1 Quarter
Operating	`OperatingCostsAndExpenses`	$77.66M	USD	3 Qtrs
Operating	`OperatingCostsAndExpenses`	$29.13M	USD	1 Quarter
Administrative and general	`GeneralAndAdministrativeExpense`	$32.80M	USD	3 Qtrs
Administrative and general	`GeneralAndAdministrativeExpense`	$10.15M	USD	1 Quarter
Administrative and general	`GeneralAndAdministrativeExpense`	$11.46M	USD	1 Quarter
Administrative and general	`GeneralAndAdministrativeExpense`	$35.48M	USD	3 Qtrs
Lease expense	`LeaseExpense`	$1.39M	USD	1 Quarter
Lease expense	`LeaseExpense`	$4.15M	USD	1 Quarter
Lease expense	`LeaseExpense`	$12.59M	USD	3 Qtrs
Lease expense	`LeaseExpense`	$6.15M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$16.09M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$48.60M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$46.93M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$16.61M	USD	1 Quarter
Costs and expenses	`CostsAndExpenses`	$191.73M	USD	3 Qtrs
Costs and expenses	`CostsAndExpenses`	$58.92M	USD	1 Quarter
Costs and expenses	`CostsAndExpenses`	$57.29M	USD	1 Quarter
Costs and expenses	`CostsAndExpenses`	$166.22M	USD	3 Qtrs
Losses on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-15.79M	USD	3 Qtrs
Losses on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$233.00K	USD	1 Quarter
Losses on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-2.72M	USD	3 Qtrs
Losses on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$861.00K	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-3.36M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-11.36M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-42.03M	USD	3 Qtrs
Operating Loss	`OperatingIncomeLoss`	$-52.69M	USD	3 Qtrs
Interest income	`InvestmentIncomeInterest`	$317.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$886.00K	USD	3 Qtrs
Interest income	`InvestmentIncomeInterest`	$50.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$1.25M	USD	3 Qtrs
Interest expense	`InterestExpense`	$8.60M	USD	1 Quarter
Interest expense	`InterestExpense`	$22.66M	USD	3 Qtrs
Interest expense	`InterestExpense`	$7.36M	USD	1 Quarter
Interest expense	`InterestExpense`	$23.23M	USD	3 Qtrs
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	$11.00K	USD	1 Quarter
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	$36.00K	USD	3 Qtrs
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	$87.00K	USD	3 Qtrs
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	$26.00K	USD	1 Quarter
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$5.00K	USD	1 Quarter
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$5.20M	USD	3 Qtrs
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$734.00K	USD	3 Qtrs
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$3.06M	USD	1 Quarter
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-853.00K	USD	1 Quarter
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-959.00K	USD	3 Qtrs
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-370.00K	USD	1 Quarter
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-624.00K	USD	3 Qtrs
Nonoperating income expense	`NonoperatingIncomeExpense`	$-21.75M	USD	3 Qtrs
Nonoperating income expense	`NonoperatingIncomeExpense`	$-17.77M	USD	3 Qtrs
Nonoperating income expense	`NonoperatingIncomeExpense`	$-9.41M	USD	1 Quarter
Nonoperating income expense	`NonoperatingIncomeExpense`	$-4.38M	USD	1 Quarter
Loss from Continuing Operations Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-7.74M	USD	1 Quarter
Loss from Continuing Operations Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-70.46M	USD	3 Qtrs
Loss from Continuing Operations Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-63.78M	USD	3 Qtrs
Loss from Continuing Operations Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-20.76M	USD	1 Quarter
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$1.28M	USD	1 Quarter
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$-24.87M	USD	3 Qtrs
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$-3.12M	USD	1 Quarter
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$-5.61M	USD	3 Qtrs
Loss from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-17.64M	USD	1 Quarter
Loss from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-9.02M	USD	1 Quarter
Loss from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-45.59M	USD	3 Qtrs
Loss from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-58.17M	USD	3 Qtrs
Equity in Earnings Gains (Losses) of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$-11.88M	USD	3 Qtrs
Equity in Earnings Gains (Losses) of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$1.46M	USD	3 Qtrs
Equity in Earnings Gains (Losses) of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$-433.00K	USD	1 Quarter
Equity in Earnings Gains (Losses) of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$-1.32M	USD	1 Quarter
Loss from Continuing Operations	`IncomeLossFromContinuingOperations`	$-18.08M	USD	1 Quarter
Loss from Continuing Operations	`IncomeLossFromContinuingOperations`	$-10.34M	USD	1 Quarter
Loss from Continuing Operations	`IncomeLossFromContinuingOperations`	$-44.13M	USD	3 Qtrs
Loss from Continuing Operations	`IncomeLossFromContinuingOperations`	$-70.05M	USD	3 Qtrs
Loss on Discontinued Operations, Net of Tax (see Note 15)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-6.72M	USD	3 Qtrs
Loss on Discontinued Operations, Net of Tax (see Note 15)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-7.90M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-44.13M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-76.78M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-18.24M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-18.08M	USD	1 Quarter
Net Income (Loss) Attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.04M	USD	3 Qtrs
Net Income (Loss) Attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$204.00K	USD	1 Quarter
Net Income (Loss) Attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.00K	USD	1 Quarter
Net Income (Loss) Attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.39M	USD	3 Qtrs
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-72.38M	USD	3 Qtrs
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-18.45M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-18.08M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-40.10M	USD	3 Qtrs
Continuing operations	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$-1.63	USD	3 Qtrs
Continuing operations	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$-0.34	USD	1 Quarter
Continuing operations	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$-0.72	USD	1 Quarter
Continuing operations	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$-2.80	USD	3 Qtrs
Discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare`	$-0.29	USD	3 Qtrs
Discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare`	$-0.44	USD	1 Quarter
Basic and Diluted Loss Per Common Share and Warrants	`EarningsPerShareBasicAndDiluted`	$-0.78	USD	1 Quarter
Basic and Diluted Loss Per Common Share and Warrants	`EarningsPerShareBasicAndDiluted`	$-3.09	USD	3 Qtrs
Basic and Diluted Loss Per Common Share and Warrants	`EarningsPerShareBasicAndDiluted`	$-1.63	USD	3 Qtrs
Basic and Diluted Loss Per Common Share and Warrants	`EarningsPerShareBasicAndDiluted`	$-0.72	USD	1 Quarter
Basic and diluted shares	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	23.74M	shares	1 Quarter
Basic and diluted shares	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	24.61M	shares	3 Qtrs
Basic and diluted shares	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	24.99M	shares	1 Quarter
Basic and diluted shares	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	23.41M	shares	3 Qtrs

Cash Flow Statement 105 line items

Line Item	Tag	Value	Unit	Period
Net Loss	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$77.14M	USD	3 Qtrs
Net Loss	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$44.13M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$16.09M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$48.60M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$46.93M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$16.61M	USD	1 Quarter
Deferred financing costs amortization	`AmortizationOfFinancingCosts`	$883.00K	USD	3 Qtrs
Deferred financing costs amortization	`AmortizationOfFinancingCosts`	$976.00K	USD	3 Qtrs
Amortization of employee share awards	`EmployeeBenefitsAndShareBasedCompensation`	$3.21M	USD	3 Qtrs
Amortization of employee share awards	`EmployeeBenefitsAndShareBasedCompensation`	$3.89M	USD	3 Qtrs
Restricted stock vesting	`RestrictedStockVesting`	$178.00K	USD	3 Qtrs
Restricted stock vesting	`RestrictedStockVesting`	$522.00K	USD	3 Qtrs
Director share awards	`DirectorStockAwards`	$755.00K	USD	3 Qtrs
Director share awards	`DirectorStockAwards`	$894.00K	USD	3 Qtrs
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$4.75M	USD	3 Qtrs
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$4.20M	USD	3 Qtrs
Bad debt recoveries	`ProvisionForDoubtfulAccounts`	$376.00K	USD	3 Qtrs
Bad debt recoveries	`ProvisionForDoubtfulAccounts`	$-404.00K	USD	3 Qtrs
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-15.79M	USD	3 Qtrs
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$233.00K	USD	1 Quarter
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-2.72M	USD	3 Qtrs
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$861.00K	USD	1 Quarter
Loss from sale of Boston Putford Offshore Safety	`GainLossOnDispositionOfAssets1`	$-7.08M	USD	3 Qtrs
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	$5.00K	USD	1 Quarter
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	$5.20M	USD	3 Qtrs
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	$734.00K	USD	3 Qtrs
Derivative gains	`GainLossOnDerivativeInstrumentsNetPretax`	$3.06M	USD	1 Quarter
Cash settlement payments on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$938.00K	USD	3 Qtrs
Cash settlement payments on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$346.00K	USD	3 Qtrs
Currency losses	`ForeignCurrencyTransactionGainLossBeforeTax`	$-853.00K	USD	1 Quarter
Currency losses	`ForeignCurrencyTransactionGainLossBeforeTax`	$-959.00K	USD	3 Qtrs
Currency losses	`ForeignCurrencyTransactionGainLossBeforeTax`	$-370.00K	USD	1 Quarter
Currency losses	`ForeignCurrencyTransactionGainLossBeforeTax`	$-624.00K	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-9.84M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$2.49M	USD	3 Qtrs
Equity losses	`IncomeLossFromEquityMethodInvestments`	$-11.88M	USD	3 Qtrs
Equity losses	`IncomeLossFromEquityMethodInvestments`	$1.46M	USD	3 Qtrs
Equity losses	`IncomeLossFromEquityMethodInvestments`	$-433.00K	USD	1 Quarter
Equity losses	`IncomeLossFromEquityMethodInvestments`	$-1.32M	USD	1 Quarter
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$1.27M	USD	3 Qtrs
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$2.12M	USD	3 Qtrs
Accounts receivables	`IncreaseDecreaseInReceivables`	$37.67M	USD	3 Qtrs
Accounts receivables	`IncreaseDecreaseInReceivables`	$2.20M	USD	3 Qtrs
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-6.43M	USD	3 Qtrs
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-344.00K	USD	3 Qtrs
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$7.97M	USD	3 Qtrs
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-16.25M	USD	3 Qtrs
Net cash used in operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$-21.05M	USD	3 Qtrs
Net cash used in operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$-818.00K	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$24.94M	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$49.57M	USD	3 Qtrs
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$20.67M	USD	3 Qtrs
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$19.77M	USD	3 Qtrs
Construction reserve funds utilized	`PaymentsForProceedsFromOtherInvestingActivities`	$-9.15M	USD	3 Qtrs
Construction reserve funds utilized	`PaymentsForProceedsFromOtherInvestingActivities`	$-9.90M	USD	3 Qtrs
Construction reserve funds transferred to short-term cash	`ConstructionReserveFundsTransferredToShortTermCash`	$3.75M	USD	3 Qtrs
Purchase of subsidiary from joint venture	`PaymentsToAcquireInterestInJointVenture`	$8.45M	USD	3 Qtrs
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	$11.36M	USD	3 Qtrs
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	$1.21M	USD	3 Qtrs
Capital distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	$413.00K	USD	3 Qtrs
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	$22.00K	USD	3 Qtrs
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	$490.00K	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-30.82M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-536.00K	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$16.97M	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$20.07M	USD	3 Qtrs
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.09M	USD	3 Qtrs
Purchase of subsidiary shares from noncontrolling interests	`PaymentToSubsidiarySharesFromNoncontrollingInterests`	$3.39M	USD	3 Qtrs
Proceeds from exercise of stock options and Warrants	`ProceedsFromStockOptionsAndWarrantsExercised`	$1.08M	USD	3 Qtrs
Proceeds from exercise of stock options and Warrants	`ProceedsFromStockOptionsAndWarrantsExercised`	$2.00K	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-22.38M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-15.88M	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-1.05M	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.02M	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseContinuingOperationsIncludingExchangeRateEffect`	$-52.00M	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseContinuingOperationsIncludingExchangeRateEffect`	$-38.52M	USD	3 Qtrs
Operating Activities	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$1.70M	USD	3 Qtrs
Operating Activities	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	-	USD	3 Qtrs
Investing Activities	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$-1.11M	USD	3 Qtrs
Investing Activities	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	-	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash, Restricted Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$-1.05M	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash, Restricted Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	-	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents on Discontinued Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperationsIncludingExchangeRateEffect`	-	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents on Discontinued Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperationsIncludingExchangeRateEffect`	$-458.00K	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-38.52M	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-52.46M	USD	3 Qtrs
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$87.05M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$96.85M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$44.39M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$48.53M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$87.05M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$96.85M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$44.39M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$48.53M	USD	Point-in-time
Cash paid for interest, including capitalized interest	`InterestPaid`	$16.08M	USD	3 Qtrs
Cash paid for interest, including capitalized interest	`InterestPaid`	$17.40M	USD	3 Qtrs
Income taxes refunded, net	`IncomeTaxesPaidNet`	$2.00M	USD	3 Qtrs
Income taxes refunded, net	`IncomeTaxesPaidNet`	$456.00K	USD	3 Qtrs
Increase in property, plant and equipment related to an acquisition	`NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1`	$142.28M	USD	3 Qtrs
Decrease in joint venture investments related to an acquisition	`NoncashDecreaseInJointVentureInvestmentsRelatedToAcquisition`	$22.22M	USD	3 Qtrs
Increase in long-term debt related to an acquisition	`NoncashOrPartNoncashAcquisitionDebtAssumed1`	$75.57M	USD	3 Qtrs
Increase in long-term debt related to asset purchases	`NoncashIncreaseInLongTermDebtRelatedToAssetPurchases`	$10.63M	USD	3 Qtrs
Increase in long-term debt related to asset purchases	`NoncashIncreaseInLongTermDebtRelatedToAssetPurchases`	$21.25M	USD	3 Qtrs
(Decrease) Increase in capital expenditures in accounts payable and accrued liabilities	`IncreaseDecreaseInCapitalExpendituresInAccountsPayableAndAccruedLiabilities`	$538.00K	USD	3 Qtrs
(Decrease) Increase in capital expenditures in accounts payable and accrued liabilities	`IncreaseDecreaseInCapitalExpendituresInAccountsPayableAndAccruedLiabilities`	$-5.44M	USD	3 Qtrs

Stockholders Equity 48 line items

Line Item	Tag	Value	Unit	Period
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$565.35M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$478.92M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$451.36M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$511.24M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$436.65M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$494.15M	USD	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	23.44M	shares	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	21.93M	shares	Point-in-time
Issuance of Common Stock	`StockIssuedDuringPeriodValueNewIssues`	$6.60M	USD	3 Qtrs
Issuance of Common Stock	`StockIssuedDuringPeriodValueNewIssues`	$3.36M	USD	3 Qtrs
Restricted stock grants	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	$3.00K	USD	3 Qtrs
Restricted stock grants	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	$2.00K	USD	3 Qtrs
Amortization of employee share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.89M	USD	3 Qtrs
Amortization of employee share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$1.20M	USD	1 Quarter
Amortization of employee share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.21M	USD	3 Qtrs
Amortization of employee share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.30M	USD	1 Quarter
Exercise of options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$1.08M	USD	3 Qtrs
Exercise of options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$973.00K	USD	1 Quarter
Exercise of options (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	20,000.00	shares	3 Qtrs
Exercise of Warrants	`StockRepurchasedDuringPeriodValueExerciseOfWarrants`	$2.00K	USD	1 Quarter
Exercise of Warrants	`StockRepurchasedDuringPeriodValueExerciseOfWarrants`	$3.00K	USD	3 Qtrs
Exercise of Warrants	`StockRepurchasedDuringPeriodValueExerciseOfWarrants`	$2.00K	USD	3 Qtrs
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$240.00K	USD	1 Quarter
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$178.00K	USD	3 Qtrs
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$524.00K	USD	3 Qtrs
Restricted stock vesting (in shares)	`TreasuryStockSharesAcquired`	26,097.00	shares	3 Qtrs
Director share awards	`StockIssuedDuringPeriodValueIssuedForServices`	$894.00K	USD	3 Qtrs
Director share awards	`StockIssuedDuringPeriodValueIssuedForServices`	$755.00K	USD	3 Qtrs
Acquisition of consolidated joint venture	`StockGrantedDuringPeriodValueSharebasedCompensation`	$3.36M	USD	3 Qtrs
Acquisition of consolidated joint venture	`StockGrantedDuringPeriodValueSharebasedCompensation`	$2.11M	USD	3 Qtrs
Dissolution of an entity	`DissolutionOfEntity`	$62.00K	USD	1 Quarter
Dissolution of an entity	`DissolutionOfEntity`	$62.00K	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-44.13M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-76.78M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-18.24M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-18.08M	USD	1 Quarter
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$-4.32M	USD	3 Qtrs
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$2.16M	USD	1 Quarter
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$-1.93M	USD	3 Qtrs
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$-1.95M	USD	1 Quarter
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$565.35M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$478.92M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$451.36M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$511.24M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$436.65M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$494.15M	USD	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	23.44M	shares	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	21.93M	shares	Point-in-time

Comprehensive Income 37 line items

Line Item	Tag	Value	Unit	Period
Reclassification of derivative gains (losses) on cash flow hedges to equity in earnings	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	1 Quarter
Reclassification of derivative gains (losses) on cash flow hedges to equity in earnings	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	1 Quarter
Reclassification of derivative gains (losses) on cash flow hedges to equity in earnings	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	3 Qtrs
Reclassification of derivative gains (losses) on cash flow hedges to equity in earnings	`PercentageOfOwnedCompaniesDerivativeLossesOnCashFlowHedgesReclassificationToEquityInEarnings`	0.50	pure	3 Qtrs
Net Loss	`ProfitLoss`	$-44.13M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-76.78M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-18.24M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-18.08M	USD	1 Quarter
Foreign currency translation gains (losses)	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-1.90M	USD	3 Qtrs
Foreign currency translation gains (losses)	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-1.63M	USD	1 Quarter
Foreign currency translation gains (losses)	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-385.00K	USD	3 Qtrs
Foreign currency translation gains (losses)	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$2.07M	USD	1 Quarter
Derivative losses on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-329.00K	USD	1 Quarter
Derivative losses on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-2.03M	USD	3 Qtrs
Derivative losses on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-2.26M	USD	3 Qtrs
Derivative losses on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-82.00K	USD	1 Quarter
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$-1.93M	USD	3 Qtrs
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$-4.49M	USD	3 Qtrs
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$2.16M	USD	1 Quarter
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$-1.95M	USD	1 Quarter
Income Tax Benefit	`OtherComprehensiveIncomeLossTax`	$-173.00K	USD	3 Qtrs
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-4.32M	USD	3 Qtrs
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$2.16M	USD	1 Quarter
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-1.93M	USD	3 Qtrs
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-1.95M	USD	1 Quarter
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-81.09M	USD	3 Qtrs
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-15.92M	USD	1 Quarter
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-20.19M	USD	1 Quarter
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-46.06M	USD	3 Qtrs
Comprehensive Income (Loss) Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$204.00K	USD	1 Quarter
Comprehensive Income (Loss) Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-4.39M	USD	3 Qtrs
Comprehensive Income (Loss) Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-4.04M	USD	3 Qtrs
Comprehensive Income (Loss) Attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$4.00K	USD	1 Quarter
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-76.70M	USD	3 Qtrs
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-20.39M	USD	1 Quarter
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-15.92M	USD	1 Quarter
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-42.03M	USD	3 Qtrs

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