10-Q Filing

SEACOR MARINE HOLDINGS INC. CIK: 1690334 Q3 2018

Filing Information

Form Type	10-Q
Accession Number	`0001437749-18-020355`
Period End Date	20180930
Filing Date	20181113
Fiscal Year	2018
Fiscal Period	Q3
XBRL Instance	smhi-20180930.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 90 Income Statement 112 Cash Flow Statement 114 Stockholders Equity 24 Comprehensive Income 36

Balance Sheet 90 line items

Line Item	Tag	Value	Unit	Period
Trade receivables, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$4.08M	USD	Point-in-time
Trade receivables, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$4.04M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$110.23M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$102.86M	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
Restricted cash	`RestrictedCashAndCashEquivalents`	$2.32M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$1.66M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	60.00M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	17.68M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	20.44M	shares	Point-in-time
Trade, net of allowance for doubtful accounts of $4,077 and $4,039 in 2018 and 2017, respectively	`AccountsReceivableNetCurrent`	$75.35M	USD	Point-in-time
Trade, net of allowance for doubtful accounts of $4,077 and $4,039 in 2018 and 2017, respectively	`AccountsReceivableNetCurrent`	$45.62M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$16.55M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$12.34M	USD	Point-in-time
Inventories	`InventoryNet`	$3.65M	USD	Point-in-time
Inventories	`InventoryNet`	$3.76M	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$2.69M	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$3.03M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$202.76M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$177.29M	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.20B	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.18B	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.28B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$568.75M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$558.92M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$560.16M	USD	Point-in-time
PropertyPlantAndEquipmentExcludingConstructionInProgress	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$710.25M	USD	Point-in-time
PropertyPlantAndEquipmentExcludingConstructionInProgress	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$619.68M	USD	Point-in-time
PropertyPlantAndEquipmentExcludingConstructionInProgress	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$645.49M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$82.95M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$70.16M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$793.20M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$689.83M	USD	Point-in-time
Investments, at Equity, and Advances to 50% or Less Owned Companies	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$92.17M	USD	Point-in-time
Investments, at Equity, and Advances to 50% or Less Owned Companies	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$120.34M	USD	Point-in-time
Construction Reserve Funds	`ConstructionReserveFunds`	$35.60M	USD	Point-in-time
Construction Reserve Funds	`ConstructionReserveFunds`	$45.36M	USD	Point-in-time
Other Assets	`OtherAssetsNoncurrent`	$3.58M	USD	Point-in-time
Other Assets	`OtherAssetsNoncurrent`	$3.85M	USD	Point-in-time
Assets	`Assets`	$1.16B	USD	Point-in-time
Assets	`Assets`	$1.01B	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtCurrent`	$22.86M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtCurrent`	$17.43M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$24.02M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$20.48M	USD	Point-in-time
Due to SEACOR Holdings	`DueToAffiliateCurrent`	$463.00K	USD	Point-in-time
Due to SEACOR Holdings	`DueToAffiliateCurrent`	$1.36M	USD	Point-in-time
Accrued wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$5.09M	USD	Point-in-time
Accrued wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$4.50M	USD	Point-in-time
Accrued income taxes	`AccruedIncomeTaxesCurrent`	$4.29M	USD	Point-in-time
Accrued income taxes	`AccruedIncomeTaxesCurrent`	$4.45M	USD	Point-in-time
Accrued capital, repair and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$19.62M	USD	Point-in-time
Accrued capital, repair and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$27.81M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$10.10M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$9.75M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$17.25M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$11.88M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$99.22M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$102.14M	USD	Point-in-time
Long-Term Debt	`LongTermDebtNoncurrent`	$292.04M	USD	Point-in-time
Long-Term Debt	`LongTermDebtNoncurrent`	$397.74M	USD	Point-in-time
Conversion Option Liability on Convertible Senior Notes	`DerivativeLiabilitiesNoncurrent`	$6.83M	USD	Point-in-time
Conversion Option Liability on Convertible Senior Notes	`DerivativeLiabilitiesNoncurrent`	$17.93M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$46.12M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$55.51M	USD	Point-in-time
Deferred Gains and Other Liabilities	`OtherLiabilitiesNoncurrent`	$31.74M	USD	Point-in-time
Deferred Gains and Other Liabilities	`OtherLiabilitiesNoncurrent`	$26.66M	USD	Point-in-time
Total liabilities	`Liabilities`	$485.34M	USD	Point-in-time
Total liabilities	`Liabilities`	$590.59M	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 20,441,590 and 17,675,356 shares issued in 2018 and 2017, respectively	`CommonStockValue`	$204.00K	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 20,441,590 and 17,675,356 shares issued in 2018 and 2017, respectively	`CommonStockValue`	$177.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$414.46M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$304.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$216.51M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$134.63M	USD	Point-in-time
Shares held in treasury	`TreasuryStockValue`	-	USD	Point-in-time
Shares held in treasury	`TreasuryStockValue`	$86.00K	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-12.49M	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-13.95M	USD	Point-in-time
StockholdersEquity	`StockholdersEquity`	$535.26M	USD	Point-in-time
StockholdersEquity	`StockholdersEquity`	$508.19M	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$29.63M	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$14.97M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$564.89M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$523.17M	USD	Point-in-time
LiabilitiesAndStockholdersEquity	`LiabilitiesAndStockholdersEquity`	$1.01B	USD	Point-in-time
LiabilitiesAndStockholdersEquity	`LiabilitiesAndStockholdersEquity`	$1.16B	USD	Point-in-time

Income Statement 112 line items

Line Item	Tag	Value	Unit	Period
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$124.44M	USD	3 Qtrs
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$47.81M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$182.68M	USD	3 Qtrs
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$70.25M	USD	1 Quarter
Operating	`OperatingCostsAndExpenses`	$41.26M	USD	1 Quarter
Operating	`OperatingCostsAndExpenses`	$51.42M	USD	1 Quarter
Operating	`OperatingCostsAndExpenses`	$141.42M	USD	3 Qtrs
Operating	`OperatingCostsAndExpenses`	$119.12M	USD	3 Qtrs
Administrative and general	`GeneralAndAdministrativeExpense`	$10.32M	USD	1 Quarter
Administrative and general	`GeneralAndAdministrativeExpense`	$43.85M	USD	3 Qtrs
Administrative and general	`GeneralAndAdministrativeExpense`	$40.57M	USD	3 Qtrs
Administrative and general	`GeneralAndAdministrativeExpense`	$12.23M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$15.62M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$42.76M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$17.34M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$55.26M	USD	3 Qtrs
CostsAndExpenses	`CostsAndExpenses`	$67.20M	USD	1 Quarter
CostsAndExpenses	`CostsAndExpenses`	$81.00M	USD	1 Quarter
CostsAndExpenses	`CostsAndExpenses`	$237.25M	USD	3 Qtrs
CostsAndExpenses	`CostsAndExpenses`	$205.73M	USD	3 Qtrs
Gains (Losses) on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-9.74M	USD	1 Quarter
Gains (Losses) on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-1.00M	USD	3 Qtrs
Gains (Losses) on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$586.00K	USD	1 Quarter
Gains (Losses) on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-11.24M	USD	3 Qtrs
Operating Loss	`OperatingIncomeLoss`	$-92.53M	USD	3 Qtrs
Operating Loss	`OperatingIncomeLoss`	$-55.57M	USD	3 Qtrs
Operating Loss	`OperatingIncomeLoss`	$-29.13M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-10.16M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$309.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$354.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$1.48M	USD	3 Qtrs
Interest income	`InvestmentIncomeInterest`	$877.00K	USD	3 Qtrs
Interest expense	`InterestExpense`	$12.02M	USD	3 Qtrs
Interest expense	`InterestExpense`	$7.76M	USD	1 Quarter
Interest expense	`InterestExpense`	$4.29M	USD	1 Quarter
Interest expense	`InterestExpense`	$20.38M	USD	3 Qtrs
SEACOR Holdings management fees	`ManagementFeeRelatedParty`	-	USD	3 Qtrs
SEACOR Holdings management fees	`ManagementFeeRelatedParty`	$3.21M	USD	3 Qtrs
SEACOR Holdings management fees	`ManagementFeeRelatedParty`	-	USD	1 Quarter
SEACOR Holdings management fees	`ManagementFeeRelatedParty`	-	USD	1 Quarter
SEACOR Holdings guarantee fees	`GuranteeFeesRelatedParty`	$5.00K	USD	1 Quarter
SEACOR Holdings guarantee fees	`GuranteeFeesRelatedParty`	$172.00K	USD	3 Qtrs
SEACOR Holdings guarantee fees	`GuranteeFeesRelatedParty`	$24.00K	USD	3 Qtrs
SEACOR Holdings guarantee fees	`GuranteeFeesRelatedParty`	$21.00K	USD	1 Quarter
Loss on Debt Extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	3 Qtrs
Loss on Debt Extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-638.00K	USD	1 Quarter
Loss on Debt Extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Loss on Debt Extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-638.00K	USD	3 Qtrs
Marketable security (losses) gains, net	`MarketableSecuritiesGainLoss`	$10.93M	USD	3 Qtrs
Marketable security (losses) gains, net	`MarketableSecuritiesGainLoss`	$-698.00K	USD	1 Quarter
Marketable security (losses) gains, net	`MarketableSecuritiesGainLoss`	-	USD	1 Quarter
Marketable security (losses) gains, net	`MarketableSecuritiesGainLoss`	-	USD	3 Qtrs
Derivative gains (losses), net	`GainLossOnDerivativeInstrumentsNetPretax`	$-9.80M	USD	3 Qtrs
Derivative gains (losses), net	`GainLossOnDerivativeInstrumentsNetPretax`	$4.39M	USD	1 Quarter
Derivative gains (losses), net	`GainLossOnDerivativeInstrumentsNetPretax`	$12.72M	USD	3 Qtrs
Derivative gains (losses), net	`GainLossOnDerivativeInstrumentsNetPretax`	$13.02M	USD	1 Quarter
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-1.39M	USD	3 Qtrs
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-106.00K	USD	1 Quarter
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-302.00K	USD	1 Quarter
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-981.00K	USD	3 Qtrs
Other, net	`OtherNonoperatingIncomeExpense`	$678.00K	USD	3 Qtrs
Other, net	`OtherNonoperatingIncomeExpense`	-	USD	1 Quarter
Other, net	`OtherNonoperatingIncomeExpense`	$-1.00K	USD	3 Qtrs
Other, net	`OtherNonoperatingIncomeExpense`	$678.00K	USD	1 Quarter
NonoperatingIncomeExpense	`NonoperatingIncomeExpense`	$-3.33M	USD	1 Quarter
NonoperatingIncomeExpense	`NonoperatingIncomeExpense`	$8.34M	USD	3 Qtrs
NonoperatingIncomeExpense	`NonoperatingIncomeExpense`	$-30.27M	USD	3 Qtrs
NonoperatingIncomeExpense	`NonoperatingIncomeExpense`	$8.26M	USD	1 Quarter
Loss Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-84.19M	USD	3 Qtrs
Loss Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-85.84M	USD	3 Qtrs
Loss Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-13.49M	USD	1 Quarter
Loss Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-20.87M	USD	1 Quarter
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$-13.30M	USD	3 Qtrs
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$-5.82M	USD	1 Quarter
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$1.25M	USD	1 Quarter
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$-23.05M	USD	3 Qtrs
Loss Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-15.05M	USD	1 Quarter
Loss Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-61.15M	USD	3 Qtrs
Loss Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-72.54M	USD	3 Qtrs
Loss Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-14.74M	USD	1 Quarter
Equity in (Losses) Earnings of 50% or Less Owned Companies, Net of Tax	`IncomeLossFromEquityMethodInvestments`	$-1.03M	USD	1 Quarter
Equity in (Losses) Earnings of 50% or Less Owned Companies, Net of Tax	`IncomeLossFromEquityMethodInvestments`	$-7.31M	USD	1 Quarter
Equity in (Losses) Earnings of 50% or Less Owned Companies, Net of Tax	`IncomeLossFromEquityMethodInvestments`	$-5.30M	USD	3 Qtrs
Equity in (Losses) Earnings of 50% or Less Owned Companies, Net of Tax	`IncomeLossFromEquityMethodInvestments`	$-1.54M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-22.36M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-15.77M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-74.08M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-66.44M	USD	3 Qtrs
Net Income (Loss) attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.27M	USD	3 Qtrs
Net Income (Loss) attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.58M	USD	3 Qtrs
Net Income (Loss) attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$191.00K	USD	1 Quarter
Net Income (Loss) attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.88M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-61.86M	USD	3 Qtrs
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-69.81M	USD	3 Qtrs
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-20.48M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-15.96M	USD	1 Quarter
Basic Loss Per Common Share and Warrants of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareBasic`	$-0.71	USD	1 Quarter
Basic Loss Per Common Share and Warrants of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareBasic`	$-3.42	USD	3 Qtrs
Basic Loss Per Common Share and Warrants of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareBasic`	$-1.17	USD	1 Quarter
Basic Loss Per Common Share and Warrants of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareBasic`	$-3.51	USD	3 Qtrs
Diluted Loss Per Common Share and Warrants of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareDiluted`	$-3.42	USD	3 Qtrs
Diluted Loss Per Common Share and Warrants of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareDiluted`	$-1.25	USD	1 Quarter
Diluted Loss Per Common Share and Warrants of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareDiluted`	$-3.51	USD	3 Qtrs
Diluted Loss Per Common Share and Warrants of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareDiluted`	$-0.71	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	20.39M	shares	3 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	17.55M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	22.51M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	17.62M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	20.39M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	22.51M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	21.62M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	17.62M	shares	3 Qtrs

Cash Flow Statement 114 line items

Line Item	Tag	Value	Unit	Period
Net loss	`ProfitLoss`	$-22.36M	USD	1 Quarter
Net loss	`ProfitLoss`	$-15.77M	USD	1 Quarter
Net loss	`ProfitLoss`	$-74.08M	USD	3 Qtrs
Net loss	`ProfitLoss`	$-66.44M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$15.62M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$42.76M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$17.34M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$55.26M	USD	3 Qtrs
Deferred financing costs amortization	`AmortizationOfFinancingCosts`	$2.03M	USD	3 Qtrs
Deferred financing costs amortization	`AmortizationOfFinancingCosts`	$1.78M	USD	3 Qtrs
Restricted stock amortization	`RestrictedStockExpense`	$363.00K	USD	3 Qtrs
Restricted stock amortization	`RestrictedStockExpense`	$2.60M	USD	3 Qtrs
Restricted stock vesting	`RestrictedStockVesting`	-	USD	3 Qtrs
Restricted stock vesting	`RestrictedStockVesting`	$83.00K	USD	3 Qtrs
Director share awards	`DirectorStockAwards`	$893.00K	USD	3 Qtrs
Director share awards	`DirectorStockAwards`	-	USD	3 Qtrs
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$4.03M	USD	3 Qtrs
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$3.32M	USD	3 Qtrs
Amortization of deferred gains against charter expense	`SaleLeasebackTransactionCurrentPeriodGainRecognized`	$6.11M	USD	3 Qtrs
Amortization of deferred gains against charter expense	`SaleLeasebackTransactionCurrentPeriodGainRecognized`	$6.03M	USD	3 Qtrs
Bad debt expense	`ProvisionForDoubtfulAccounts`	$-516.00K	USD	3 Qtrs
Bad debt expense	`ProvisionForDoubtfulAccounts`	$86.00K	USD	3 Qtrs
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-9.74M	USD	1 Quarter
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-1.00M	USD	3 Qtrs
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$586.00K	USD	1 Quarter
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-11.24M	USD	3 Qtrs
Gain from other sales	`GainLossOnSaleOfOtherAssets`	-	USD	3 Qtrs
Gain from other sales	`GainLossOnSaleOfOtherAssets`	$428.00K	USD	3 Qtrs
Gains from sale of marketable securities, net	`PaymentsForPurchaseOfSecuritiesOperatingActivities`	-	USD	3 Qtrs
Gains from sale of marketable securities, net	`PaymentsForPurchaseOfSecuritiesOperatingActivities`	$10.93M	USD	3 Qtrs
Proceeds from sale of securities	`ProceedsFromSaleOfSecuritiesOperatingActivities`	$51.88M	USD	3 Qtrs
Proceeds from sale of securities	`ProceedsFromSaleOfSecuritiesOperatingActivities`	-	USD	3 Qtrs
Derivative losses (gains)	`GainLossOnDerivativeInstrumentsNetPretax`	$-9.80M	USD	3 Qtrs
Derivative losses (gains)	`GainLossOnDerivativeInstrumentsNetPretax`	$4.39M	USD	1 Quarter
Derivative losses (gains)	`GainLossOnDerivativeInstrumentsNetPretax`	$12.72M	USD	3 Qtrs
Derivative losses (gains)	`GainLossOnDerivativeInstrumentsNetPretax`	$13.02M	USD	1 Quarter
Cash settlement on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$372.00K	USD	3 Qtrs
Cash settlement on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$48.00K	USD	3 Qtrs
Currency loss	`ForeignCurrencyTransactionGainLossBeforeTax`	$-1.39M	USD	3 Qtrs
Currency loss	`ForeignCurrencyTransactionGainLossBeforeTax`	$-106.00K	USD	1 Quarter
Currency loss	`ForeignCurrencyTransactionGainLossBeforeTax`	$-302.00K	USD	1 Quarter
Currency loss	`ForeignCurrencyTransactionGainLossBeforeTax`	$-981.00K	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-12.53M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-20.98M	USD	3 Qtrs
Equity losses, net	`IncomeLossFromEquityMethodInvestments`	$-1.03M	USD	1 Quarter
Equity losses, net	`IncomeLossFromEquityMethodInvestments`	$-7.31M	USD	1 Quarter
Equity losses, net	`IncomeLossFromEquityMethodInvestments`	$-5.30M	USD	3 Qtrs
Equity losses, net	`IncomeLossFromEquityMethodInvestments`	$-1.54M	USD	3 Qtrs
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$1.32M	USD	3 Qtrs
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$2.44M	USD	3 Qtrs
Accounts receivables	`IncreaseDecreaseInAccountsReceivable`	$-735.00K	USD	3 Qtrs
Accounts receivables	`IncreaseDecreaseInAccountsReceivable`	$29.25M	USD	3 Qtrs
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-3.58M	USD	3 Qtrs
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-1.00M	USD	3 Qtrs
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$479.00K	USD	3 Qtrs
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$19.75M	USD	3 Qtrs
Net cash (used in) provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$35.14M	USD	3 Qtrs
Net cash (used in) provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-50.12M	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$52.35M	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$37.76M	USD	3 Qtrs
Cash settlements on derivative transactions, net	`PaymentsForProceedsFromHedgeInvestingActivities`	-	USD	3 Qtrs
Cash settlements on derivative transactions, net	`PaymentsForProceedsFromHedgeInvestingActivities`	$369.00K	USD	3 Qtrs
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$9.80M	USD	3 Qtrs
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$5.38M	USD	3 Qtrs
Net change in construction reserve fund	`IncreaseDecreaseInConstructionReserveFunds`	$-32.75M	USD	3 Qtrs
Net change in construction reserve fund	`IncreaseDecreaseInConstructionReserveFunds`	$-9.77M	USD	3 Qtrs
Sale of subsidiary joint venture	`ProceedsFromDivestitureOfInterestInJointVenture`	$8.02M	USD	3 Qtrs
Sale of subsidiary joint venture	`ProceedsFromDivestitureOfInterestInJointVenture`	-	USD	3 Qtrs
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	$30.25M	USD	3 Qtrs
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	$5.30M	USD	3 Qtrs
Return of investments and advances from 50% or less owned companies	`ProceedsFromInvestmentsDistributionReturnOfCapital`	-	USD	3 Qtrs
Return of investments and advances from 50% or less owned companies	`ProceedsFromInvestmentsDistributionReturnOfCapital`	$7.35M	USD	3 Qtrs
Capital distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	$6.46M	USD	3 Qtrs
Capital distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	-	USD	3 Qtrs
Proceeds from sale of investment in equity investees	`ProceedsFromSaleOfEquityMethodInvestments`	$89.00K	USD	3 Qtrs
Proceeds from sale of investment in equity investees	`ProceedsFromSaleOfEquityMethodInvestments`	-	USD	3 Qtrs
Payments received on third party notes receivable, net	`ProceedsFromCollectionOfNotesReceivable`	$99.00K	USD	3 Qtrs
Payments received on third party notes receivable, net	`ProceedsFromCollectionOfNotesReceivable`	-	USD	3 Qtrs
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	-	USD	3 Qtrs
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	$313.00K	USD	3 Qtrs
Cash assumed on consolidation of 50% or less owned companies	`CashAcquiredFromAcquisition`	-	USD	3 Qtrs
Cash assumed on consolidation of 50% or less owned companies	`CashAcquiredFromAcquisition`	$1.94M	USD	3 Qtrs
Business acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$9.75M	USD	3 Qtrs
Business acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-15.53M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-38.29M	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$8.57M	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$38.05M	USD	3 Qtrs
Proceeds from issuance of long-term debt, net of issue costs	`ProceedsFromDebtNetOfIssuanceCosts`	$6.84M	USD	3 Qtrs
Proceeds from issuance of long-term debt, net of issue costs	`ProceedsFromDebtNetOfIssuanceCosts`	$62.35M	USD	3 Qtrs
SMHI Restricted Stock	`ProceedsFromPaymentsForOtherFinancingActivities`	-	USD	3 Qtrs
SMHI Restricted Stock	`ProceedsFromPaymentsForOtherFinancingActivities`	$-2.66M	USD	3 Qtrs
Purchase of subsidiary shares from noncontrolling interests	`PaymentsToAcquireAdditionalInterestInSubsidiaries`	-	USD	3 Qtrs
Purchase of subsidiary shares from noncontrolling interests	`PaymentsToAcquireAdditionalInterestInSubsidiaries`	$3.69M	USD	3 Qtrs
Proceeds from exercise of stock options and Warrants	`ProceedsFromStockOptionsAndWarrantsExercised`	$813.00K	USD	3 Qtrs
Proceeds from exercise of stock options and Warrants	`ProceedsFromStockOptionsAndWarrantsExercised`	-	USD	3 Qtrs
Issuance of stock	`ProceedsFromIssuanceOfCommonStock`	$43.00M	USD	3 Qtrs
Issuance of stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	3 Qtrs
Issuance of Warrants	`ProceedsFromIssuanceOfWarrants`	-	USD	3 Qtrs
Issuance of Warrants	`ProceedsFromIssuanceOfWarrants`	$12.81M	USD	3 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-8.08M	USD	3 Qtrs
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$80.92M	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$-541.00K	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$1.67M	USD	3 Qtrs
Net (Decrease) Increase in Cash, Cash Equivalents and Restricted Cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$13.21M	USD	3 Qtrs
Net (Decrease) Increase in Cash, Cash Equivalents and Restricted Cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-8.03M	USD	3 Qtrs
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$118.77M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$104.52M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$112.55M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, Beginning of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$131.98M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$118.77M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$104.52M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$112.55M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$131.98M	USD	Point-in-time

Stockholders Equity 24 line items

Line Item	Tag	Value	Unit	Period
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$564.89M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$523.17M	USD	Point-in-time
Impact of adoption of accounting principle	`CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption`	$-12.07M	USD	Point-in-time
December 31, 2017 as adjusted	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1`	$511.10M	USD	Point-in-time
Issuance of Common Stock	`StockIssuedDuringPeriodValueNewIssues`	$43.00M	USD	3 Qtrs
Issuance of Warrants	`AdjustmentsToAdditionalPaidInCapitalWarrantIssued`	$62.81M	USD	3 Qtrs
Amortization of employee share awards	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$2.60M	USD	3 Qtrs
Exercise of options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$813.00K	USD	3 Qtrs
Exercise of Warrants	`StockRepurchasedDuringPeriodValueExerciseOfWarrants`	-	USD	3 Qtrs
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$83.92K	USD	3 Qtrs
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$2.56K	USD	Point-in-time
Director share awards	`StockIssuedDuringPeriodValueIssuedForServices`	$893.00K	USD	3 Qtrs
Acquisition of consolidated joint venture	`StockGrantedDuringPeriodValueSharebasedCompensation`	$-12.04M	USD	3 Qtrs
Issuance of noncontrolling interests	`AdjustmentsToAdditionalPaidInCapitalTrueUpOfNonControllingInterest`	$31.39M	USD	3 Qtrs
Net loss	`ProfitLoss`	$-22.36M	USD	1 Quarter
Net loss	`ProfitLoss`	$-15.77M	USD	1 Quarter
Net loss	`ProfitLoss`	$-74.08M	USD	3 Qtrs
Net loss	`ProfitLoss`	$-66.44M	USD	3 Qtrs
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$1.06M	USD	1 Quarter
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-835.00K	USD	1 Quarter
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$2.91M	USD	3 Qtrs
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-1.50M	USD	3 Qtrs
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$564.89M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$523.17M	USD	Point-in-time

Comprehensive Income 36 line items

Line Item	Tag	Value	Unit	Period
Net loss	`ProfitLoss`	$-22.36M	USD	1 Quarter
Net loss	`ProfitLoss`	$-15.77M	USD	1 Quarter
Net loss	`ProfitLoss`	$-74.08M	USD	3 Qtrs
Net loss	`ProfitLoss`	$-66.44M	USD	3 Qtrs
Foreign currency translation (losses) gains	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$1.43M	USD	1 Quarter
Foreign currency translation (losses) gains	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-533.00K	USD	1 Quarter
Foreign currency translation (losses) gains	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-1.41M	USD	3 Qtrs
Foreign currency translation (losses) gains	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$4.22M	USD	3 Qtrs
Derivative (losses) gains on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-36.00K	USD	3 Qtrs
Derivative (losses) gains on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$32.00K	USD	1 Quarter
Derivative (losses) gains on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-91.00K	USD	1 Quarter
Derivative (losses) gains on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$347.00K	USD	3 Qtrs
OtherComprehensiveIncomeLossBeforeTax	`OtherComprehensiveIncomeLossBeforeTax`	$4.33M	USD	3 Qtrs
OtherComprehensiveIncomeLossBeforeTax	`OtherComprehensiveIncomeLossBeforeTax`	$-824.00K	USD	1 Quarter
OtherComprehensiveIncomeLossBeforeTax	`OtherComprehensiveIncomeLossBeforeTax`	$1.60M	USD	1 Quarter
OtherComprehensiveIncomeLossBeforeTax	`OtherComprehensiveIncomeLossBeforeTax`	$-1.46M	USD	3 Qtrs
Income tax benefit	`OtherComprehensiveIncomeLossTax`	$541.00K	USD	1 Quarter
Income tax benefit	`OtherComprehensiveIncomeLossTax`	$11.00K	USD	1 Quarter
Income tax benefit	`OtherComprehensiveIncomeLossTax`	$46.00K	USD	3 Qtrs
Income tax benefit	`OtherComprehensiveIncomeLossTax`	$1.43M	USD	3 Qtrs
OtherComprehensiveIncomeLossNetOfTax	`OtherComprehensiveIncomeLossNetOfTax`	$1.06M	USD	1 Quarter
OtherComprehensiveIncomeLossNetOfTax	`OtherComprehensiveIncomeLossNetOfTax`	$-835.00K	USD	1 Quarter
OtherComprehensiveIncomeLossNetOfTax	`OtherComprehensiveIncomeLossNetOfTax`	$2.91M	USD	3 Qtrs
OtherComprehensiveIncomeLossNetOfTax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.50M	USD	3 Qtrs
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-16.60M	USD	1 Quarter
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-75.59M	USD	3 Qtrs
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-63.54M	USD	3 Qtrs
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-21.29M	USD	1 Quarter
Comprehensive Income (Loss) attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$172.00K	USD	1 Quarter
Comprehensive Income (Loss) attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-1.82M	USD	1 Quarter
Comprehensive Income (Loss) attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-4.33M	USD	3 Qtrs
Comprehensive Income (Loss) attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-4.32M	USD	3 Qtrs
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-71.27M	USD	3 Qtrs
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-19.47M	USD	1 Quarter
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-59.21M	USD	3 Qtrs
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-16.77M	USD	1 Quarter

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