10-Q Filing

SEACOR MARINE HOLDINGS INC. CIK: 1690334 Q3 2019

Filing Information

Form Type	10-Q
Accession Number	`0001564590-19-042390`
Period End Date	20190930
Filing Date	20191112
Fiscal Year	2019
Fiscal Period	Q3
XBRL Instance	smhi-20190930.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 104 Income Statement 124 Cash Flow Statement 95 Stockholders Equity 54 Comprehensive Income 39

Balance Sheet 104 line items

Line Item	Tag	Value	Unit	Period
Trade receivables, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$455.00K	USD	Point-in-time
Trade receivables, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$860.00K	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`	$91.60M	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`	$38.16M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	20.44M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	21.87M	shares	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$1.66M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$4.02M	USD	Point-in-time
Shares held in treasury (in shares)	`TreasuryStockShares`	42,504.00	shares	Point-in-time
Shares held in treasury (in shares)	`TreasuryStockShares`	4,007.00	shares	Point-in-time
Trade, net of allowance for doubtful accounts of $455 and $860 in 2019 and 2018, respectively	`AccountsReceivableNetCurrent`	$58.95M	USD	Point-in-time
Trade, net of allowance for doubtful accounts of $455 and $860 in 2019 and 2018, respectively	`AccountsReceivableNetCurrent`	$55.05M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$11.29M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$6.83M	USD	Point-in-time
Inventories	`InventoryNet`	$1.41M	USD	Point-in-time
Inventories	`InventoryNet`	$1.98M	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$3.15M	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$2.24M	USD	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$15.22M	USD	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$13.13M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$125.64M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$179.03M	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.12B	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.15B	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.07B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$400.63M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$466.42M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$461.40M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$669.75M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$682.42M	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$655.18M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$88.92M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$70.28M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$740.02M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$744.10M	USD	Point-in-time
Right-of-Use Asset - Operating Leases	`OperatingLeaseRightOfUseAsset`	$18.77M	USD	Point-in-time
Investments, at Equity, and Advances to 50% or Less Owned Companies	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$121.77M	USD	Point-in-time
Investments, at Equity, and Advances to 50% or Less Owned Companies	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$118.22M	USD	Point-in-time
Construction Reserve Funds	`ConstructionReserveFunds`	$18.16M	USD	Point-in-time
Construction Reserve Funds	`ConstructionReserveFunds`	$28.06M	USD	Point-in-time
Other Assets	`OtherAssetsNoncurrent`	$3.42M	USD	Point-in-time
Other Assets	`OtherAssetsNoncurrent`	$3.69M	USD	Point-in-time
Assets Held for Sale	`DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent`	$26.28M	USD	Point-in-time
Assets Held for Sale	`DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent`	$16.27M	USD	Point-in-time
Total assets	`Assets`	$1.10B	USD	Point-in-time
Total assets	`Assets`	$1.04B	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$15.18M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtCurrent`	$23.45M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtCurrent`	$16.81M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$26.51M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$18.09M	USD	Point-in-time
Due to SEACOR Holdings	`DueToAffiliateCurrent`	$452.00K	USD	Point-in-time
Due to SEACOR Holdings	`DueToAffiliateCurrent`	$77.00K	USD	Point-in-time
Accrued wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$4.12M	USD	Point-in-time
Accrued wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$3.29M	USD	Point-in-time
Accrued income taxes	`AccruedIncomeTaxesCurrent`	$1.92M	USD	Point-in-time
Accrued income taxes	`AccruedIncomeTaxesCurrent`	$3.23M	USD	Point-in-time
Deferred revenue	`ContractWithCustomerLiabilityCurrent`	$1.33M	USD	Point-in-time
Deferred revenue	`ContractWithCustomerLiabilityCurrent`	$3.30M	USD	Point-in-time
Accrued capital, repair and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$15.99M	USD	Point-in-time
Accrued capital, repair and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$18.76M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$19.61M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$16.56M	USD	Point-in-time
Liabilities associated with assets held for sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$3.81M	USD	Point-in-time
Liabilities associated with assets held for sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$2.53M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$111.40M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$83.62M	USD	Point-in-time
Long-Term Operating Lease Liabilities	`OperatingLeaseLiabilityNoncurrent`	$12.88M	USD	Point-in-time
Long-Term Debt	`LongTermDebtNoncurrent`	$387.85M	USD	Point-in-time
Long-Term Debt	`LongTermDebtNoncurrent`	$375.77M	USD	Point-in-time
Conversion Option Liability on Convertible Senior Notes	`DerivativeLiabilitiesNoncurrent`	$5.28M	USD	Point-in-time
Conversion Option Liability on Convertible Senior Notes	`DerivativeLiabilitiesNoncurrent`	$4.54M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$44.69M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$36.92M	USD	Point-in-time
Deferred Gains and Other Liabilities	`OtherLiabilitiesNoncurrent`	$4.85M	USD	Point-in-time
Deferred Gains and Other Liabilities	`OtherLiabilitiesNoncurrent`	$26.57M	USD	Point-in-time
Total liabilities	`Liabilities`	$546.36M	USD	Point-in-time
Total liabilities	`Liabilities`	$548.00M	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 21,868,718 and 20,443,215 shares issued in 2019 and 2018, respectively	`CommonStockValue`	$204.00K	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 21,868,718 and 20,443,215 shares issued in 2019 and 2018, respectively	`CommonStockValue`	$219.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$427.82M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$415.37M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$126.83M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$64.93M	USD	Point-in-time
Shares held in treasury of 42,504 and 4,007, respectively, at cost	`TreasuryStockValue`	$91.00K	USD	Point-in-time
Shares held in treasury of 42,504 and 4,007, respectively, at cost	`TreasuryStockValue`	$614.00K	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-16.79M	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-21.11M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$525.53M	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$471.25M	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$22.89M	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$29.40M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$564.89M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$580.82M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$554.93M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$523.17M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$494.15M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$511.24M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$1.10B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$1.04B	USD	Point-in-time

Income Statement 124 line items

Line Item	Tag	Value	Unit	Period
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$54.70M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$152.42M	USD	3 Qtrs
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$58.17M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$144.67M	USD	3 Qtrs
Operating	`OperatingCostsAndExpenses`	$38.40M	USD	1 Quarter
Operating	`OperatingCostsAndExpenses`	$27.21M	USD	1 Quarter
Operating	`OperatingCostsAndExpenses`	$99.84M	USD	3 Qtrs
Operating	`OperatingCostsAndExpenses`	$97.75M	USD	3 Qtrs
Administrative and general	`GeneralAndAdministrativeExpense`	$12.51M	USD	1 Quarter
Administrative and general	`GeneralAndAdministrativeExpense`	$11.77M	USD	1 Quarter
Administrative and general	`GeneralAndAdministrativeExpense`	$36.15M	USD	3 Qtrs
Administrative and general	`GeneralAndAdministrativeExpense`	$39.18M	USD	3 Qtrs
Lease expense	`LeaseExpense`	$12.64M	USD	3 Qtrs
Lease expense	`LeaseExpense`	$4.17M	USD	1 Quarter
Lease expense	`LeaseExpense`	$9.88M	USD	3 Qtrs
Lease expense	`LeaseExpense`	$3.29M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$16.40M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$48.60M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$16.09M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$52.94M	USD	3 Qtrs
Costs and expenses	`CostsAndExpenses`	$69.86M	USD	1 Quarter
Costs and expenses	`CostsAndExpenses`	$195.13M	USD	3 Qtrs
Costs and expenses	`CostsAndExpenses`	$59.98M	USD	1 Quarter
Costs and expenses	`CostsAndExpenses`	$201.84M	USD	3 Qtrs
Gain (loss) on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$861.00K	USD	1 Quarter
Gain (loss) on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-2.72M	USD	3 Qtrs
Gain (loss) on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-1.76M	USD	1 Quarter
Gain (loss) on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-3.49M	USD	3 Qtrs
Operating Loss	`OperatingIncomeLoss`	$-13.45M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-60.66M	USD	3 Qtrs
Operating Loss	`OperatingIncomeLoss`	$-45.43M	USD	3 Qtrs
Operating Loss	`OperatingIncomeLoss`	$-4.42M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$886.00K	USD	3 Qtrs
Interest income	`InvestmentIncomeInterest`	$869.00K	USD	3 Qtrs
Interest income	`InvestmentIncomeInterest`	$317.00K	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$305.00K	USD	1 Quarter
Interest expense	`InterestExpense`	$7.66M	USD	1 Quarter
Interest expense	`InterestExpense`	$22.66M	USD	3 Qtrs
Interest expense	`InterestExpense`	$20.08M	USD	3 Qtrs
Interest expense	`InterestExpense`	$7.36M	USD	1 Quarter
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	$87.00K	USD	3 Qtrs
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	$5.00K	USD	1 Quarter
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	$24.00K	USD	3 Qtrs
SEACOR Holdings guarantee fees	`GuaranteeFeesRelatedParty`	$26.00K	USD	1 Quarter
Loss on Debt Extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-638.00K	USD	3 Qtrs
Loss on Debt Extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-638.00K	USD	1 Quarter
Derivative (gains) losses, net	`GainLossOnDerivativeInstrumentsNetPretax`	$4.39M	USD	1 Quarter
Derivative (gains) losses, net	`GainLossOnDerivativeInstrumentsNetPretax`	$734.00K	USD	3 Qtrs
Derivative (gains) losses, net	`GainLossOnDerivativeInstrumentsNetPretax`	$-9.80M	USD	3 Qtrs
Derivative (gains) losses, net	`GainLossOnDerivativeInstrumentsNetPretax`	$3.06M	USD	1 Quarter
Foreign currency gains, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-370.00K	USD	1 Quarter
Foreign currency gains, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-296.00K	USD	1 Quarter
Foreign currency gains, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-967.00K	USD	3 Qtrs
Foreign currency gains, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-624.00K	USD	3 Qtrs
Other, net	`OtherNonoperatingIncomeExpense`	$678.00K	USD	1 Quarter
Other, net	`OtherNonoperatingIncomeExpense`	$678.00K	USD	3 Qtrs
Nonoperating income expense	`NonoperatingIncomeExpense`	$-21.75M	USD	3 Qtrs
Nonoperating income expense	`NonoperatingIncomeExpense`	$-4.38M	USD	1 Quarter
Nonoperating income expense	`NonoperatingIncomeExpense`	$-29.96M	USD	3 Qtrs
Nonoperating income expense	`NonoperatingIncomeExpense`	$-3.23M	USD	1 Quarter
Loss from Continuing Operations Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-16.68M	USD	1 Quarter
Loss from Continuing Operations Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-67.18M	USD	3 Qtrs
Loss from Continuing Operations Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-90.62M	USD	3 Qtrs
Loss from Continuing Operations Before Income Tax Benefit and Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-8.80M	USD	1 Quarter
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$-13.30M	USD	3 Qtrs
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$1.28M	USD	1 Quarter
Income Tax Expense (Benefit)	`IncomeTaxExpenseBenefit`	$1.25M	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`	$-10.08M	USD	1 Quarter
Loss from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-77.32M	USD	3 Qtrs
Loss from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-17.93M	USD	1 Quarter
Loss from Continuing Operations Before Equity in Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-61.57M	USD	3 Qtrs
Equity in Losses of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$-1.02M	USD	1 Quarter
Equity in Losses of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$-11.88M	USD	3 Qtrs
Equity in Losses of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$-1.73M	USD	3 Qtrs
Equity in Losses of 50% or Less Owned Companies	`IncomeLossFromEquityMethodInvestments`	$-1.32M	USD	1 Quarter
Loss from Continuing Operations	`IncomeLossFromContinuingOperations`	$-18.95M	USD	1 Quarter
Loss from Continuing Operations	`IncomeLossFromContinuingOperations`	$-11.41M	USD	1 Quarter
Loss from Continuing Operations	`IncomeLossFromContinuingOperations`	$-73.45M	USD	3 Qtrs
Loss from Continuing Operations	`IncomeLossFromContinuingOperations`	$-79.05M	USD	3 Qtrs
(Loss) Income on Discontinued Operations, Net of Tax	`DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax`	$3.19M	USD	1 Quarter
(Loss) Income on Discontinued Operations, Net of Tax	`DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax`	$4.97M	USD	3 Qtrs
(Loss) Income on Discontinued Operations, Net of Tax	`DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax`	$-3.33M	USD	3 Qtrs
(Loss) Income on Discontinued Operations, Net of Tax	`DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax`	$-6.83M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-15.77M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-76.78M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-74.08M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-18.24M	USD	1 Quarter
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`	$-4.27M	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`	$-4.39M	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`	$-15.96M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-69.81M	USD	3 Qtrs
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-18.45M	USD	1 Quarter
Continuing operations (Basic)	`IncomeLossFromContinuingOperationsPerBasicShare`	$-0.85	USD	1 Quarter
Continuing operations (Basic)	`IncomeLossFromContinuingOperationsPerBasicShare`	$-3.66	USD	3 Qtrs
Continuing operations (Basic)	`IncomeLossFromContinuingOperationsPerBasicShare`	$-0.49	USD	1 Quarter
Continuing operations (Basic)	`IncomeLossFromContinuingOperationsPerBasicShare`	$-2.95	USD	3 Qtrs
Discontinued operations (Basic)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare`	$-0.29	USD	1 Quarter
Discontinued operations (Basic)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare`	$0.14	USD	1 Quarter
Discontinued operations (Basic)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare`	$-0.14	USD	3 Qtrs
Discontinued operations (Basic)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare`	$0.24	USD	3 Qtrs
Basic Income (Loss) Per Common Share	`EarningsPerShareBasic`	$-3.09	USD	3 Qtrs
Basic Income (Loss) Per Common Share	`EarningsPerShareBasic`	$-0.71	USD	1 Quarter
Basic Income (Loss) Per Common Share	`EarningsPerShareBasic`	$-0.78	USD	1 Quarter
Basic Income (Loss) Per Common Share	`EarningsPerShareBasic`	$-3.42	USD	3 Qtrs
Continuing operations (Diluted)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-0.49	USD	1 Quarter
Continuing operations (Diluted)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-2.95	USD	3 Qtrs
Continuing operations (Diluted)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-3.66	USD	3 Qtrs
Continuing operations (Diluted)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-0.85	USD	1 Quarter
Discontinued operations (Diluted)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare`	$-0.14	USD	3 Qtrs
Discontinued operations (Diluted)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare`	$0.24	USD	3 Qtrs
Discontinued operations (Diluted)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare`	$0.14	USD	1 Quarter
Discontinued operations (Diluted)	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare`	$-0.29	USD	1 Quarter
Diluted Income (Loss) Per Common Share	`EarningsPerShareDiluted`	$-3.09	USD	3 Qtrs
Diluted Income (Loss) Per Common Share	`EarningsPerShareDiluted`	$-0.71	USD	1 Quarter
Diluted Income (Loss) Per Common Share	`EarningsPerShareDiluted`	$-3.42	USD	3 Qtrs
Diluted Income (Loss) Per Common Share	`EarningsPerShareDiluted`	$-0.78	USD	1 Quarter
Basic and diluted shares	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	22.51M	shares	1 Quarter
Basic and diluted shares	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	23.74M	shares	1 Quarter
Basic and diluted shares	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	20.39M	shares	3 Qtrs
Basic and diluted shares	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	23.41M	shares	3 Qtrs

Cash Flow Statement 95 line items

Line Item	Tag	Value	Unit	Period
Net Loss	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$79.05M	USD	3 Qtrs
Net Loss	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$73.45M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$16.40M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$48.60M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$16.09M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$52.94M	USD	3 Qtrs
Deferred financing costs amortization	`AmortizationOfFinancingCosts`	$1.78M	USD	3 Qtrs
Deferred financing costs amortization	`AmortizationOfFinancingCosts`	$883.00K	USD	3 Qtrs
Restricted stock amortization	`RestrictedStockExpense`	$2.60M	USD	3 Qtrs
Restricted stock amortization	`RestrictedStockExpense`	$3.89M	USD	3 Qtrs
Restricted stock vesting	`RestrictedStockVesting`	$83.00K	USD	3 Qtrs
Restricted stock vesting	`RestrictedStockVesting`	$522.00K	USD	3 Qtrs
Director share awards	`DirectorStockAwards`	$894.00K	USD	3 Qtrs
Director share awards	`DirectorStockAwards`	$893.00K	USD	3 Qtrs
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$4.20M	USD	3 Qtrs
Debt discount amortization	`AmortizationOfDebtDiscountPremium`	$4.03M	USD	3 Qtrs
Amortization of deferred gains against charter expense	`SaleLeasebackTransactionCurrentPeriodGainRecognized`	$6.03M	USD	3 Qtrs
Bad debt (recovery) expense	`ProvisionForDoubtfulAccounts`	$86.00K	USD	3 Qtrs
Bad debt (recovery) expense	`ProvisionForDoubtfulAccounts`	$-404.00K	USD	3 Qtrs
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$861.00K	USD	1 Quarter
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-2.72M	USD	3 Qtrs
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-1.76M	USD	1 Quarter
Loss from equipment sales, retirements or impairments	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-3.49M	USD	3 Qtrs
Gain from other sales	`GainLossOnSaleOfOtherAssets`	$428.00K	USD	3 Qtrs
Derivative losses	`GainLossOnDerivativeInstrumentsNetPretax`	$4.39M	USD	1 Quarter
Derivative losses	`GainLossOnDerivativeInstrumentsNetPretax`	$734.00K	USD	3 Qtrs
Derivative losses	`GainLossOnDerivativeInstrumentsNetPretax`	$-9.80M	USD	3 Qtrs
Derivative losses	`GainLossOnDerivativeInstrumentsNetPretax`	$3.06M	USD	1 Quarter
Cash settlement on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$346.00K	USD	3 Qtrs
Cash settlement on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$48.00K	USD	3 Qtrs
Currency losses	`ForeignCurrencyTransactionLossBeforeTax`	$966.00K	USD	3 Qtrs
Currency losses	`ForeignCurrencyTransactionLossBeforeTax`	$624.00K	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-9.84M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-20.98M	USD	3 Qtrs
Equity losses	`IncomeLossFromEquityMethodInvestments`	$-1.02M	USD	1 Quarter
Equity losses	`IncomeLossFromEquityMethodInvestments`	$-11.88M	USD	3 Qtrs
Equity losses	`IncomeLossFromEquityMethodInvestments`	$-1.73M	USD	3 Qtrs
Equity losses	`IncomeLossFromEquityMethodInvestments`	$-1.32M	USD	1 Quarter
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$1.32M	USD	3 Qtrs
Dividends received from equity investees	`ProceedsFromDividendsReceived`	$1.27M	USD	3 Qtrs
Accounts receivables	`IncreaseDecreaseInReceivables`	$29.23M	USD	3 Qtrs
Accounts receivables	`IncreaseDecreaseInReceivables`	$2.20M	USD	3 Qtrs
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-345.00K	USD	3 Qtrs
Other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-708.00K	USD	3 Qtrs
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$7.97M	USD	3 Qtrs
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-1.40M	USD	3 Qtrs
Net cash used in operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$-4.21M	USD	3 Qtrs
Net cash used in operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$-56.90M	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$49.57M	USD	3 Qtrs
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$37.46M	USD	3 Qtrs
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$19.77M	USD	3 Qtrs
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$2.73M	USD	3 Qtrs
Net change in construction reserve fund	`PaymentsForProceedsFromOtherInvestingActivities`	$-9.90M	USD	3 Qtrs
Net change in construction reserve fund	`PaymentsForProceedsFromOtherInvestingActivities`	$-9.77M	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`	$30.25M	USD	3 Qtrs
Sale of subsidiary joint venture	`ProceedsFromDivestitureOfInterestInJointVenture`	$8.02M	USD	3 Qtrs
Capital distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	$6.46M	USD	3 Qtrs
Capital distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	$413.00K	USD	3 Qtrs
Payments received on third party notes receivable, net	`ProceedsFromCollectionOfNotesReceivable`	$99.00K	USD	3 Qtrs
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	$22.00K	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-40.64M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-30.82M	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$38.05M	USD	3 Qtrs
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$20.07M	USD	3 Qtrs
Proceeds from issuance of long-term debt, net of issue costs	`ProceedsFromDebtNetOfIssuanceCosts`	$62.35M	USD	3 Qtrs
Purchase of subsidiary shares from noncontrolling interests	`ProceedsFromPaymentsToMinorityShareholders`	$-3.39M	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`	$1.08M	USD	3 Qtrs
Issuance of stock	`ProceedsFromIssuanceOfCommonStock`	$43.00M	USD	3 Qtrs
Issuance of Warrants	`ProceedsFromIssuanceOfWarrants`	$12.81M	USD	3 Qtrs
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-22.38M	USD	3 Qtrs
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$80.92M	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.60M	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-5.00M	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseContinuingOperationsIncludingExchangeRateEffect`	$-21.63M	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseContinuingOperationsIncludingExchangeRateEffect`	$-55.82M	USD	3 Qtrs
Operating Activities	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$5.09M	USD	3 Qtrs
Operating Activities	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$6.78M	USD	3 Qtrs
Investing Activities	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$2.35M	USD	3 Qtrs
Investing Activities	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$-1.11M	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash, Restricted Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$-624.00K	USD	3 Qtrs
Effects of Exchange Rate Changes on Cash, Restricted Cash and Cash Equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$4.46M	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents on Discontinued Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperationsIncludingExchangeRateEffect`	$3.36M	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents on Discontinued Operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseDiscontinuedOperationsIncludingExchangeRateEffect`	$13.60M	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-52.46M	USD	3 Qtrs
Net Decrease in Cash, Restricted Cash and Cash Equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-8.03M	USD	3 Qtrs
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`	$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, 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`	$104.52M	USD	Point-in-time
Cash, Restricted Cash and Cash Equivalents, End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$112.55M	USD	Point-in-time

Stockholders Equity 54 line items

Line Item	Tag	Value	Unit	Period
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$564.89M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$580.82M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$554.93M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$523.17M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$494.15M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$511.24M	USD	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	20.44M	shares	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	21.87M	shares	Point-in-time
Impact of adoption of new accounting standard	`CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption`	$10.42M	USD	Point-in-time
Impact of adoption of new accounting standard	`CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption`	$-12.07M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1`	$511.10M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1`	$565.35M	USD	Point-in-time
Issuance of Common Stock	`StockIssuedDuringPeriodValueNewIssues`	$6.60M	USD	3 Qtrs
Issuance of Common Stock	`StockIssuedDuringPeriodValueNewIssues`	$42.99M	USD	3 Qtrs
Restricted stock grants	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	$1.00K	USD	3 Qtrs
Restricted stock grants	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	$2.00K	USD	3 Qtrs
Issuance of Warrants	`AdjustmentsToAdditionalPaidInCapitalWarrantIssued`	$62.81M	USD	3 Qtrs
Amortization of employee share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.60M	USD	3 Qtrs
Amortization of employee share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$706.00K	USD	1 Quarter
Amortization of employee share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$2.30M	USD	1 Quarter
Amortization of employee share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.89M	USD	3 Qtrs
Exercise of options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$813.00K	USD	3 Qtrs
Exercise of options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$1.08M	USD	3 Qtrs
Exercise of options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$973.00K	USD	1 Quarter
Exercise of options (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	86,494.00	shares	3 Qtrs
Exercise of Warrants	`StockRepurchasedDuringPeriodValueExerciseOfWarrants`	$-3.00K	USD	3 Qtrs
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$83.00K	USD	3 Qtrs
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$240.00K	USD	1 Quarter
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$32.00K	USD	1 Quarter
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$524.00K	USD	3 Qtrs
Restricted stock vesting (in shares)	`TreasuryStockSharesAcquired`	38,448.00	shares	3 Qtrs
Director share awards	`StockIssuedDuringPeriodValueIssuedForServices`	$893.00K	USD	3 Qtrs
Director share awards	`StockIssuedDuringPeriodValueIssuedForServices`	$894.00K	USD	3 Qtrs
Acquisition of consolidated joint venture	`StockGrantedDuringPeriodValueSharebasedCompensation`	$12.04M	USD	3 Qtrs
Acquisition of consolidated joint venture	`StockGrantedDuringPeriodValueSharebasedCompensation`	$2.11M	USD	3 Qtrs
Issuance of noncontrolling interests	`NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance`	$31.39M	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`	$-15.77M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-76.78M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-74.08M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-18.24M	USD	1 Quarter
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-835.00K	USD	1 Quarter
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-4.32M	USD	3 Qtrs
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-1.50M	USD	3 Qtrs
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-1.95M	USD	1 Quarter
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$564.89M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$580.82M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$554.93M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$523.17M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$494.15M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$511.24M	USD	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	20.44M	shares	Point-in-time
Balance (in shares)	`CommonStockSharesIssued`	21.87M	shares	Point-in-time

Comprehensive Income 39 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	1 Quarter
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
Net Loss	`ProfitLoss`	$-15.77M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-76.78M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-74.08M	USD	3 Qtrs
Net Loss	`ProfitLoss`	$-18.24M	USD	1 Quarter
Foreign currency translation losses	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-1.63M	USD	1 Quarter
Foreign currency translation losses	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-533.00K	USD	1 Quarter
Foreign currency translation losses	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-1.41M	USD	3 Qtrs
Foreign currency translation losses	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-1.90M	USD	3 Qtrs
Derivative (losses) gains on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-329.00K	USD	1 Quarter
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`	$-2.26M	USD	3 Qtrs
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$-1.46M	USD	3 Qtrs
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$-1.95M	USD	1 Quarter
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$-4.49M	USD	3 Qtrs
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$-824.00K	USD	1 Quarter
Income tax benefit (expense)	`OtherComprehensiveIncomeLossTax`	$-173.00K	USD	3 Qtrs
Income tax benefit (expense)	`OtherComprehensiveIncomeLossTax`	$11.00K	USD	1 Quarter
Income tax benefit (expense)	`OtherComprehensiveIncomeLossTax`	$46.00K	USD	3 Qtrs
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-835.00K	USD	1 Quarter
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-4.32M	USD	3 Qtrs
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-1.50M	USD	3 Qtrs
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-1.95M	USD	1 Quarter
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-75.59M	USD	3 Qtrs
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-16.60M	USD	1 Quarter
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-81.09M	USD	3 Qtrs
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-20.19M	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`	$-4.32M	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 Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-71.27M	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`	$-76.70M	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.