10-K Filing

SEACOR MARINE HOLDINGS INC. CIK: 1690334 FY 2018

Filing Information

Form Type	10-K
Accession Number	`0001437749-19-004584`
Period End Date	20181231
Filing Date	20190312
Fiscal Year	2018
Fiscal Period	FY
XBRL Instance	smhi-20181231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 103 Income Statement 116 Cash Flow Statement 163 Stockholders Equity 42 Comprehensive Income 38

Balance Sheet 103 line items

Line Item	Tag	Value	Unit	Period
Trade receivables, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$860.00K	USD	Point-in-time
Trade receivables, allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$4.04M	USD	Point-in-time
Preferred stock, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred stock, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$110.23M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$95.19M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$1.66M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$2.32M	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Trade, net of allowance for doubtful accounts of $860 and $4,039 in 2018 and 2017, respectively	`AccountsReceivableNetCurrent`	$64.12M	USD	Point-in-time
Trade, net of allowance for doubtful accounts of $860 and $4,039 in 2018 and 2017, respectively	`AccountsReceivableNetCurrent`	$45.62M	USD	Point-in-time
Preferred stock, shares outstanding (in shares)	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Preferred stock, shares outstanding (in shares)	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Other	`OtherReceivablesNetCurrent`	$12.34M	USD	Point-in-time
Other	`OtherReceivablesNetCurrent`	$12.08M	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
Inventories	`InventoryNet`	$3.76M	USD	Point-in-time
Inventories	`InventoryNet`	$3.44M	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
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$3.03M	USD	Point-in-time
Prepaid expenses and other	`PrepaidExpenseAndOtherAssetsCurrent`	$2.53M	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	20.44M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	17.68M	shares	Point-in-time
Shares held in treasury (in shares)	`TreasuryStockShares`	0.00	shares	Point-in-time
Total current assets	`AssetsCurrent`	$179.03M	USD	Point-in-time
Shares held in treasury (in shares)	`TreasuryStockShares`	4,007.00	shares	Point-in-time
Total current assets	`AssetsCurrent`	$177.29M	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$958.76M	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.24B	USD	Point-in-time
Historical cost	`PropertyPlantAndEquipmentGross`	$1.18B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$540.62M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$561.27M	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$560.16M	USD	Point-in-time
PropertyPlantAndEquipmentExcludingConstructionInProgress	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$418.14M	USD	Point-in-time
PropertyPlantAndEquipmentExcludingConstructionInProgress	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$619.68M	USD	Point-in-time
PropertyPlantAndEquipmentExcludingConstructionInProgress	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$681.46M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$88.92M	USD	Point-in-time
Construction in progress	`ConstructionInProgressGross`	$70.16M	USD	Point-in-time
Net property and equipment	`PropertyPlantAndEquipmentNet`	$770.38M	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`	$121.77M	USD	Point-in-time
Construction Reserve Funds	`ConstructionReserveFunds`	$45.36M	USD	Point-in-time
Construction Reserve Funds	`ConstructionReserveFunds`	$28.06M	USD	Point-in-time
Other Assets	`OtherAssetsNoncurrent`	$3.85M	USD	Point-in-time
Other Assets	`OtherAssetsNoncurrent`	$3.69M	USD	Point-in-time
Assets	`Assets`	$1.01B	USD	Point-in-time
Assets	`Assets`	$1.10B	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtCurrent`	$16.81M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtCurrent`	$22.86M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$19.37M	USD	Point-in-time
Accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$24.02M	USD	Point-in-time
Due to SEACOR Holdings	`DueToAffiliateCurrent`	$452.00K	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`	$5.03M	USD	Point-in-time
Accrued income taxes	`AccruedIncomeTaxesCurrent`	$4.29M	USD	Point-in-time
Accrued income taxes	`AccruedIncomeTaxesCurrent`	$1.92M	USD	Point-in-time
Accrued capital, repair and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$18.89M	USD	Point-in-time
Accrued capital, repair and maintenance expenditures	`AccruedCapitalRepairAndMaintenanceExpendituresCurrent`	$19.62M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$10.10M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$1.33M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$11.88M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$19.83M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$99.22M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$83.62M	USD	Point-in-time
Long-Term Debt	`LongTermDebtNoncurrent`	$387.85M	USD	Point-in-time
Long-Term Debt	`LongTermDebtNoncurrent`	$292.04M	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`	$5.28M	USD	Point-in-time
Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$44.68M	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`	$26.57M	USD	Point-in-time
Total liabilities	`Liabilities`	$548.00M	USD	Point-in-time
Total liabilities	`Liabilities`	$485.34M	USD	Point-in-time
Preferred stock, $.01 par value, 10,000,000 shares authorized; none issued nor outstanding	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, $.01 par value, 10,000,000 shares authorized; none issued nor outstanding	`PreferredStockValue`	-	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 20,443,215 and 17,675,356 shares issued in 2018 and 2017, respectively	`CommonStockValue`	$177.00K	USD	Point-in-time
Common stock, $.01 par value, 60,000,000 shares authorized; 20,443,215 and 17,675,356 shares issued in 2018 and 2017, respectively	`CommonStockValue`	$204.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$415.37M	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`	$126.83M	USD	Point-in-time
Shares held in treasury of 4,007 and 0 in 2018 and 2017, respectively, at cost	`TreasuryStockValue`	-	USD	Point-in-time
Shares held in treasury of 4,007 and 0 in 2018 and 2017, respectively, at cost	`TreasuryStockValue`	$91.00K	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`	$-16.79M	USD	Point-in-time
StockholdersEquity	`StockholdersEquity`	$508.19M	USD	Point-in-time
StockholdersEquity	`StockholdersEquity`	$525.53M	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$29.40M	USD	Point-in-time
Noncontrolling interests in subsidiaries	`MinorityInterest`	$14.97M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$554.93M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$689.85M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$550.15M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$523.17M	USD	Point-in-time
LiabilitiesAndStockholdersEquity	`LiabilitiesAndStockholdersEquity`	$1.01B	USD	Point-in-time
LiabilitiesAndStockholdersEquity	`LiabilitiesAndStockholdersEquity`	$1.10B	USD	Point-in-time

Income Statement 116 line items

Line Item	Tag	Value	Unit	Period
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$173.78M	USD	Annual
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$34.30M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$253.61M	USD	Annual
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$47.81M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$70.25M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$51.72M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$215.64M	USD	Annual
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$60.70M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$70.93M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$49.34M	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$42.32M	USD	1 Quarter
Operating	`OperatingCostsAndExpenses`	$186.57M	USD	Annual
Operating	`OperatingCostsAndExpenses`	$166.93M	USD	Annual
Operating	`OperatingCostsAndExpenses`	$159.60M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$56.22M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$49.31M	USD	Annual
Administrative and general	`GeneralAndAdministrativeExpense`	$52.81M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$72.25M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$58.07M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$62.78M	USD	Annual
CostsAndExpenses	`CostsAndExpenses`	$274.30M	USD	Annual
CostsAndExpenses	`CostsAndExpenses`	$278.60M	USD	Annual
CostsAndExpenses	`CostsAndExpenses`	$311.62M	USD	Annual
Losses on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-8.75M	USD	Annual
Losses on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-23.55M	USD	Annual
Losses on Asset Dispositions and Impairments, Net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-116.22M	USD	Annual
Operating Loss	`OperatingIncomeLoss`	$-18.59M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-128.36M	USD	Annual
Operating Loss	`OperatingIncomeLoss`	$-29.13M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-11.19M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-174.89M	USD	Annual
Operating Loss	`OperatingIncomeLoss`	$-10.16M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-66.76M	USD	Annual
Operating Loss	`OperatingIncomeLoss`	$-44.81M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-21.00M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-35.83M	USD	1 Quarter
Operating Loss	`OperatingIncomeLoss`	$-24.41M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$1.23M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$4.46M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$1.80M	USD	Annual
Interest expense	`InterestExpense`	$16.53M	USD	Annual
Interest expense	`InterestExpense`	$27.87M	USD	Annual
Interest expense	`InterestExpense`	$10.01M	USD	Annual
SEACOR Holdings management fees	`ManagementFeeRelatedParty`	$7.70M	USD	Annual
SEACOR Holdings management fees	`ManagementFeeRelatedParty`	$3.21M	USD	Annual
SEACOR Holdings management fees	`ManagementFeeRelatedParty`	-	USD	Annual
SEACOR Holdings guarantee fees	`GuranteeFeesRelatedParty`	$201.00K	USD	Annual
SEACOR Holdings guarantee fees	`GuranteeFeesRelatedParty`	$29.00K	USD	Annual
SEACOR Holdings guarantee fees	`GuranteeFeesRelatedParty`	$315.00K	USD	Annual
Loss on Debt Extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on Debt Extinguishment	`GainsLossesOnExtinguishmentOfDebt`	-	USD	Annual
Loss on Debt Extinguishment	`GainsLossesOnExtinguishmentOfDebt`	$-638.00K	USD	Annual
Marketable security gains (losses), net	`MarketableSecuritiesGainLoss`	$-45.00K	USD	Annual
Marketable security gains (losses), net	`MarketableSecuritiesGainLoss`	$10.93M	USD	Annual
Marketable security gains (losses), net	`MarketableSecuritiesGainLoss`	-	USD	Annual
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$3.00M	USD	Annual
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$20.26M	USD	Annual
Derivative gains, net	`GainLossOnDerivativeInstrumentsNetPretax`	$2.85M	USD	Annual
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-3.31M	USD	Annual
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-1.71M	USD	Annual
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-1.45M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$-1.49M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$674.00K	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$-6.00K	USD	Annual
NonoperatingIncomeExpense	`NonoperatingIncomeExpense`	$11.34M	USD	Annual
NonoperatingIncomeExpense	`NonoperatingIncomeExpense`	$-25.22M	USD	Annual
NonoperatingIncomeExpense	`NonoperatingIncomeExpense`	$-15.42M	USD	Annual
Loss Before Income Tax Benefit and Equity in Earnings (Losses) of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-91.98M	USD	Annual
Loss Before Income Tax Benefit and Equity in Earnings (Losses) of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-190.31M	USD	Annual
Loss Before Income Tax Benefit and Equity in Earnings (Losses) of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-117.02M	USD	Annual
Current	`CurrentIncomeTaxExpenseBenefit`	$-13.40M	USD	Annual
Current	`CurrentIncomeTaxExpenseBenefit`	$9.39M	USD	Annual
Current	`CurrentIncomeTaxExpenseBenefit`	$-15.42M	USD	Annual
Deferred income tax benefit	`DeferredIncomeTaxExpenseBenefit`	$-22.74M	USD	Annual
Deferred income tax benefit	`DeferredIncomeTaxExpenseBenefit`	$-48.05M	USD	Annual
Deferred income tax benefit	`DeferredIncomeTaxExpenseBenefit`	$-61.01M	USD	Annual
IncomeTaxExpenseBenefit	`IncomeTaxExpenseBenefit`	$-13.35M	USD	Annual
IncomeTaxExpenseBenefit	`IncomeTaxExpenseBenefit`	$-63.47M	USD	Annual
IncomeTaxExpenseBenefit	`IncomeTaxExpenseBenefit`	$-74.41M	USD	Annual
Loss Before Equity in (Losses) Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-126.84M	USD	Annual
Loss Before Equity in (Losses) Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-78.64M	USD	Annual
Loss Before Equity in (Losses) Earnings of 50% or Less Owned Companies	`IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsAndNoncontrollingInterestAfterTax`	$-42.62M	USD	Annual
Equity in (Losses) Earnings of 50% or Less Owned Companies, Net of Tax	`IncomeLossFromEquityMethodInvestments`	$-6.31M	USD	Annual
Equity in (Losses) Earnings of 50% or Less Owned Companies, Net of Tax	`IncomeLossFromEquityMethodInvestments`	$4.08M	USD	Annual
Equity in (Losses) Earnings of 50% or Less Owned Companies, Net of Tax	`IncomeLossFromEquityMethodInvestments`	$-3.42M	USD	Annual
Net Loss	`ProfitLoss`	$-82.05M	USD	Annual
Net Loss	`ProfitLoss`	$27.90M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-133.15M	USD	Annual
Net Loss	`ProfitLoss`	$-31.69M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-22.36M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-36.49M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-7.97M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-38.54M	USD	Annual
Net Loss	`ProfitLoss`	$-7.60M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-26.63M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-15.77M	USD	1 Quarter
Net Loss attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.44M	USD	Annual
Net Loss attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$-5.64M	USD	Annual
Net Loss attributable to Noncontrolling Interests in Subsidiaries	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.10M	USD	Annual
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-33.99M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-132.05M	USD	Annual
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-32.90M	USD	Annual
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-28.83M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-25.02M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-77.61M	USD	Annual
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-7.39M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-20.48M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-7.79M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$-15.96M	USD	1 Quarter
Net Loss attributable to SEACOR Marine Holdings Inc.	`NetIncomeLoss`	$28.96M	USD	1 Quarter
Basic and Diluted Loss Per Common Share of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareBasicAndDiluted`	$-3.71	USD	Annual
Basic and Diluted Loss Per Common Share of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareBasicAndDiluted`	$-7.47	USD	Annual
Basic and Diluted Loss Per Common Share of SEACOR Marine Holdings Inc. (in dollars per share)	`EarningsPerShareBasicAndDiluted`	$-1.87	USD	Annual
Basic and Diluted Weighted Average Common Shares Outstanding: (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	17.67M	shares	Annual
Basic and Diluted Weighted Average Common Shares Outstanding: (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	20.93M	shares	Annual
Basic and Diluted Weighted Average Common Shares Outstanding: (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	17.60M	shares	Annual

Cash Flow Statement 163 line items

Line Item	Tag	Value	Unit	Period
Net Loss	`ProfitLoss`	$-82.05M	USD	Annual
Net Loss	`ProfitLoss`	$27.90M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-133.15M	USD	Annual
Net Loss	`ProfitLoss`	$-31.69M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-22.36M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-36.49M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-7.97M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-38.54M	USD	Annual
Net Loss	`ProfitLoss`	$-7.60M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-26.63M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-15.77M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$72.25M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$58.07M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$62.78M	USD	Annual
Deferred financing cost amortization	`AmortizationOfFinancingCosts`	-	USD	Annual
Deferred financing cost amortization	`AmortizationOfFinancingCosts`	$2.02M	USD	Annual
Deferred financing cost amortization	`AmortizationOfFinancingCosts`	-	USD	Annual
Amortization of deferred gains against charter expense	`SaleLeasebackTransactionCurrentPeriodGainRecognized`	$8.20M	USD	Annual
Amortization of deferred gains against charter expense	`SaleLeasebackTransactionCurrentPeriodGainRecognized`	$8.12M	USD	Annual
Amortization of deferred gains against charter expense	`SaleLeasebackTransactionCurrentPeriodGainRecognized`	$8.04M	USD	Annual
Debt discount and issue cost amortization, net	`AmortizationOfDebtDiscountPremium`	$7.40M	USD	Annual
Debt discount and issue cost amortization, net	`AmortizationOfDebtDiscountPremium`	$5.35M	USD	Annual
Debt discount and issue cost amortization, net	`AmortizationOfDebtDiscountPremium`	$6.79M	USD	Annual
Director share awards	`DirectorStockAwards`	-	USD	Annual
Director share awards	`DirectorStockAwards`	$681.00K	USD	Annual
Director share awards	`DirectorStockAwards`	$893.00K	USD	Annual
Restricted stock amortization	`RestrictedStockExpense`	-	USD	Annual
Restricted stock amortization	`RestrictedStockExpense`	$3.49M	USD	Annual
Restricted stock amortization	`RestrictedStockExpense`	$726.00K	USD	Annual
Restricted stock vesting	`RestrictedStockVesting`	$88.00K	USD	Annual
Restricted stock vesting	`RestrictedStockVesting`	-	USD	Annual
Restricted stock vesting	`RestrictedStockVesting`	-	USD	Annual
Bad debt (recoveries) expense	`ProvisionForDoubtfulAccounts`	$4.28M	USD	Annual
Bad debt (recoveries) expense	`ProvisionForDoubtfulAccounts`	$-880.00K	USD	Annual
Bad debt (recoveries) expense	`ProvisionForDoubtfulAccounts`	$-1.28M	USD	Annual
Losses on asset dispositions and impairments, net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-8.75M	USD	Annual
Losses on asset dispositions and impairments, net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-23.55M	USD	Annual
Losses on asset dispositions and impairments, net	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$-116.22M	USD	Annual
Gain from other sales	`GainLossOnSaleOfOtherAssets`	$428.00K	USD	Annual
Gain from other sales	`GainLossOnSaleOfOtherAssets`	-	USD	Annual
Gain from other sales	`GainLossOnSaleOfOtherAssets`	-	USD	Annual
Marketable security (gains) losses, net	`MarketableSecuritiesGainLoss`	$-45.00K	USD	Annual
Marketable security (gains) losses, net	`MarketableSecuritiesGainLoss`	$10.93M	USD	Annual
Marketable security (gains) losses, net	`MarketableSecuritiesGainLoss`	-	USD	Annual
Purchases of marketable securities	`PaymentsForPurchaseOfSecuritiesOperatingActivities`	-	USD	Annual
Purchases of marketable securities	`PaymentsForPurchaseOfSecuritiesOperatingActivities`	-	USD	Annual
Purchases of marketable securities	`PaymentsForPurchaseOfSecuritiesOperatingActivities`	$23.00M	USD	Annual
Proceeds from sale of marketable securities	`ProceedsFromSaleOfSecuritiesOperatingActivities`	$51.88M	USD	Annual
Proceeds from sale of marketable securities	`ProceedsFromSaleOfSecuritiesOperatingActivities`	-	USD	Annual
Proceeds from sale of marketable securities	`ProceedsFromSaleOfSecuritiesOperatingActivities`	$9.17M	USD	Annual
Derivative (gains), net	`GainLossOnDerivativeInstrumentsNetPretax`	$3.00M	USD	Annual
Derivative (gains), net	`GainLossOnDerivativeInstrumentsNetPretax`	$20.26M	USD	Annual
Derivative (gains), net	`GainLossOnDerivativeInstrumentsNetPretax`	$2.85M	USD	Annual
Cash settlements on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$512.00K	USD	Annual
Cash settlements on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$-1.37M	USD	Annual
Cash settlements on derivative transactions, net	`PaymentsForProceedsFromDerivativeInstrumentsOperatingActivities`	$1.43M	USD	Annual
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-3.31M	USD	Annual
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-1.71M	USD	Annual
Foreign currency losses, net	`ForeignCurrencyTransactionGainLossBeforeTax`	$-1.45M	USD	Annual
Deferred income tax benefit	`DeferredIncomeTaxExpenseBenefit`	$-22.74M	USD	Annual
Deferred income tax benefit	`DeferredIncomeTaxExpenseBenefit`	$-48.05M	USD	Annual
Deferred income tax benefit	`DeferredIncomeTaxExpenseBenefit`	$-61.01M	USD	Annual
Other, net	`ProceedsFromOtherOperatingActivities`	-	USD	Annual
Other, net	`ProceedsFromOtherOperatingActivities`	$1.48M	USD	Annual
Other, net	`ProceedsFromOtherOperatingActivities`	-	USD	Annual
Equity in (earnings) losses of 50% or less owned companies, net of tax	`IncomeLossFromEquityMethodInvestments`	$-6.31M	USD	Annual
Equity in (earnings) losses of 50% or less owned companies, net of tax	`IncomeLossFromEquityMethodInvestments`	$4.08M	USD	Annual
Equity in (earnings) losses of 50% or less owned companies, net of tax	`IncomeLossFromEquityMethodInvestments`	$-3.42M	USD	Annual
Dividends received from 50% or less owned companies	`ProceedsFromDividendsReceived`	$1.72M	USD	Annual
Dividends received from 50% or less owned companies	`ProceedsFromDividendsReceived`	$2.64M	USD	Annual
Dividends received from 50% or less owned companies	`ProceedsFromDividendsReceived`	$777.00K	USD	Annual
(Increase) decrease in receivables	`IncreaseDecreaseInReceivables`	$18.98M	USD	Annual
(Increase) decrease in receivables	`IncreaseDecreaseInReceivables`	$-28.94M	USD	Annual
(Increase) decrease in receivables	`IncreaseDecreaseInReceivables`	$-5.64M	USD	Annual
Decrease (increase) in prepaid expenses and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-1.18M	USD	Annual
Decrease (increase) in prepaid expenses and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$18.09M	USD	Annual
Decrease (increase) in prepaid expenses and other assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-6.23M	USD	Annual
Decrease in accounts payable, accrued expenses and other liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-6.99M	USD	Annual
Decrease in accounts payable, accrued expenses and other liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-18.85M	USD	Annual
Decrease in accounts payable, accrued expenses and other liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-6.46M	USD	Annual
Net cash (used in) provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-29.19M	USD	Annual
Net cash (used in) provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$34.74M	USD	Annual
Net cash (used in) provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-53.02M	USD	Annual
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$69.02M	USD	Annual
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$51.98M	USD	Annual
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$100.88M	USD	Annual
Cash settlements on derivative transactions, net	`PaymentsForProceedsFromHedgeInvestingActivities`	$369.00K	USD	Annual
Cash settlements on derivative transactions, net	`PaymentsForProceedsFromHedgeInvestingActivities`	-	USD	Annual
Cash settlements on derivative transactions, net	`PaymentsForProceedsFromHedgeInvestingActivities`	$373.00K	USD	Annual
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$41.92M	USD	Annual
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$10.84M	USD	Annual
Proceeds from disposition of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$22.86M	USD	Annual
Sale of subsidiary to joint venture	`ProceedsFromDivestitureOfInterestInJointVenture`	-	USD	Annual
Sale of subsidiary to joint venture	`ProceedsFromDivestitureOfInterestInJointVenture`	-	USD	Annual
Sale of subsidiary to joint venture	`ProceedsFromDivestitureOfInterestInJointVenture`	$8.02M	USD	Annual
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	$16.86M	USD	Annual
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	$5.47M	USD	Annual
Investments in and advances to 50% or less owned companies	`PaymentsToAcquireEquityMethodInvestments`	$43.73M	USD	Annual
Return of investments and advances from 50% or less owned companies	`ProceedsFromInvestmentsDistributionReturnOfCapital`	-	USD	Annual
Return of investments and advances from 50% or less owned companies	`ProceedsFromInvestmentsDistributionReturnOfCapital`	-	USD	Annual
Return of investments and advances from 50% or less owned companies	`ProceedsFromInvestmentsDistributionReturnOfCapital`	$7.51M	USD	Annual
Capital distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	$40.00K	USD	Annual
Capital distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	$16.26M	USD	Annual
Capital distributions from equity investees	`ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital`	-	USD	Annual
Payments received on third-party leases and notes receivable, net	`ProceedsFromCollectionOfNotesReceivable`	-	USD	Annual
Payments received on third-party leases and notes receivable, net	`ProceedsFromCollectionOfNotesReceivable`	-	USD	Annual
Payments received on third-party leases and notes receivable, net	`ProceedsFromCollectionOfNotesReceivable`	$124.00K	USD	Annual
Net decrease in construction reserve funds	`PaymentsForProceedsFromOtherInvestingActivities`	$-17.30M	USD	Annual
Net decrease in construction reserve funds	`PaymentsForProceedsFromOtherInvestingActivities`	$-32.85M	USD	Annual
Net decrease in construction reserve funds	`PaymentsForProceedsFromOtherInvestingActivities`	$-60.41M	USD	Annual
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	$116.00K	USD	Annual
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	-	USD	Annual
Principal payments on notes due from equity investees	`RepaymentOfNotesReceivableFromRelatedParties`	-	USD	Annual
Cash assumed on consolidation of 50% or less owned companies	`CashAcquiredFromAcquisition`	-	USD	Annual
Cash assumed on consolidation of 50% or less owned companies	`CashAcquiredFromAcquisition`	-	USD	Annual
Cash assumed on consolidation of 50% or less owned companies	`CashAcquiredFromAcquisition`	$1.94M	USD	Annual
Business acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Business acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$9.75M	USD	Annual
Business acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-31.42M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-15.67M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-31.15M	USD	Annual
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$49.41M	USD	Annual
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$11.93M	USD	Annual
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$27.15M	USD	Annual
Proceeds from issuance of long-term debt, net of issue costs	`ProceedsFromDebtNetOfIssuanceCosts`	$42.95M	USD	Annual
Proceeds from issuance of long-term debt, net of issue costs	`ProceedsFromDebtNetOfIssuanceCosts`	$62.02M	USD	Annual
Proceeds from issuance of long-term debt, net of issue costs	`ProceedsFromDebtNetOfIssuanceCosts`	$6.54M	USD	Annual
Proceeds from exercise of stock options and warrants	`ProceedsFromStockOptionsAndWarrantsExercised`	-	USD	Annual
Proceeds from exercise of stock options and warrants	`ProceedsFromStockOptionsAndWarrantsExercised`	$833.00K	USD	Annual
Proceeds from exercise of stock options and warrants	`ProceedsFromStockOptionsAndWarrantsExercised`	-	USD	Annual
Distribution of SEACOR Marine restricted stock to Company personnel by SEACOR Holdings	`ProceedsFromPaymentsForOtherFinancingActivities`	-	USD	Annual
Distribution of SEACOR Marine restricted stock to Company personnel by SEACOR Holdings	`ProceedsFromPaymentsForOtherFinancingActivities`	$-2.66M	USD	Annual
Distribution of SEACOR Marine restricted stock to Company personnel by SEACOR Holdings	`ProceedsFromPaymentsForOtherFinancingActivities`	-	USD	Annual
Issuance of stock	`ProceedsFromIssuanceOfCommonStock`	$43.00M	USD	Annual
Issuance of stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Issuance of stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Issuance of warrants	`ProceedsFromIssuanceOfWarrants`	$12.81M	USD	Annual
Issuance of warrants	`ProceedsFromIssuanceOfWarrants`	-	USD	Annual
Issuance of warrants	`ProceedsFromIssuanceOfWarrants`	-	USD	Annual
Purchase of subsidiary shares from noncontrolling interests	`PaymentsToAcquireAdditionalInterestInSubsidiaries`	-	USD	Annual
Purchase of subsidiary shares from noncontrolling interests	`PaymentsToAcquireAdditionalInterestInSubsidiaries`	$3.69M	USD	Annual
Purchase of subsidiary shares from noncontrolling interests	`PaymentsToAcquireAdditionalInterestInSubsidiaries`	-	USD	Annual
Distributions to noncontrolling interests	`ProceedsFromPaymentsToMinorityShareholders`	-	USD	Annual
Distributions to noncontrolling interests	`ProceedsFromPaymentsToMinorityShareholders`	$-205.00K	USD	Annual
Distributions to noncontrolling interests	`ProceedsFromPaymentsToMinorityShareholders`	-	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-11.73M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$15.59M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$69.25M	USD	Annual
Effects of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-2.48M	USD	Annual
Effects of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-775.00K	USD	Annual
Effects of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.19M	USD	Annual
Net (Decrease) in Cash, Cash Equivalents and Restricted Cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-15.70M	USD	Annual
Net (Decrease) in Cash, Cash Equivalents and Restricted Cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-6.22M	USD	Annual
Net (Decrease) in Cash, Cash Equivalents and Restricted Cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-31.75M	USD	Annual
Cash, Cash Equivalents and Restricted Cash, Beginning of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$96.85M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, Beginning of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$150.52M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, Beginning of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$118.77M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, Beginning of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$112.55M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, End of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$96.85M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, End of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$150.52M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, End of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$118.77M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash, End of Year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$112.55M	USD	Point-in-time

Stockholders Equity 42 line items

Line Item	Tag	Value	Unit	Period
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$554.93M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$689.85M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$550.15M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$523.17M	USD	Point-in-time
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$205.00K	USD	Annual
Net loss	`ProfitLoss`	$-82.05M	USD	Annual
Net loss	`ProfitLoss`	$27.90M	USD	1 Quarter
Net loss	`ProfitLoss`	$-133.15M	USD	Annual
Net loss	`ProfitLoss`	$-31.69M	USD	1 Quarter
Net loss	`ProfitLoss`	$-22.36M	USD	1 Quarter
Net loss	`ProfitLoss`	$-36.49M	USD	1 Quarter
Net loss	`ProfitLoss`	$-7.97M	USD	1 Quarter
Net loss	`ProfitLoss`	$-38.54M	USD	Annual
Net loss	`ProfitLoss`	$-7.60M	USD	1 Quarter
Net loss	`ProfitLoss`	$-26.63M	USD	1 Quarter
Net loss	`ProfitLoss`	$-15.77M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-4.39M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-6.34M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-881.00K	USD	Annual
Distribution of SEACOR Marine restricted stock to Company personnel by SEACOR Holdings	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	$-2.66M	USD	Annual
Director share awards	`StockIssuedDuringPeriodValueIssuedForServices`	$893.00K	USD	Annual
Director share awards	`StockIssuedDuringPeriodValueIssuedForServices`	$681.00K	USD	Annual
Amortization of employee share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.49M	USD	Annual
Amortization of employee share awards	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$726.00K	USD	Annual
Purchase of subsidiary shares from noncontrolling interests, net of tax	`MinorityInterestDecreaseFromRedemptions`	$3.69M	USD	Annual
Consolidation of 50% or less owned companies	`NoncontrollingInterestIncreaseFromBusinessCombination`	$17.37M	USD	Annual
Impact of adoption of accounting principle	`CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption`	$-12.07M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1`	$511.10M	USD	Point-in-time
Issuance of Common Stock (in shares)	`StockIssuedDuringPeriodSharesNewIssues`	103,213.00	shares	Point-in-time
Issuance of Common Stock	`StockIssuedDuringPeriodValueNewIssues`	$43.00M	USD	Annual
Issuance of Warrants	`AdjustmentsToAdditionalPaidInCapitalWarrantIssued`	$62.81M	USD	Annual
Exercise of options (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	-	shares	Annual
Exercise of options (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	66,625.00	shares	Annual
Exercise of options	`StockIssuedDuringPeriodValueStockOptionsExercised`	$833.00K	USD	Annual
Exercise of Warrants	`StockRepurchasedDuringPeriodValueExerciseOfWarrants`	-	USD	Annual
Restricted stock vesting	`TreasuryStockValueAcquiredCostMethod`	$88.00K	USD	Annual
Acquisition of consolidated joint venture	`StockGrantedDuringPeriodValueSharebasedCompensation`	$-12.04M	USD	Annual
Issuance of noncontrolling interests	`AdjustmentsToAdditionalPaidInCapitalTrueUpOfNonControllingInterest`	$31.39M	USD	Annual
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$554.93M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$689.85M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$550.15M	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$523.17M	USD	Point-in-time

Comprehensive Income 38 line items

Line Item	Tag	Value	Unit	Period
Net Loss	`ProfitLoss`	$-82.05M	USD	Annual
Net Loss	`ProfitLoss`	$27.90M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-133.15M	USD	Annual
Net Loss	`ProfitLoss`	$-31.69M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-22.36M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-36.49M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-7.97M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-38.54M	USD	Annual
Net Loss	`ProfitLoss`	$-7.60M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-26.63M	USD	1 Quarter
Net Loss	`ProfitLoss`	$-15.77M	USD	1 Quarter
Foreign currency translation (losses) gains, net	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-2.37M	USD	Annual
Foreign currency translation (losses) gains, net	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$4.65M	USD	Annual
Foreign currency translation (losses) gains, net	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax`	$-9.51M	USD	Annual
Reclassification of foreign currency translation losses to foreign currency losses, net	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax`	-	USD	Annual
Reclassification of foreign currency translation losses to foreign currency losses, net	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax`	$74.00K	USD	Annual
Reclassification of foreign currency translation losses to foreign currency losses, net	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax`	-	USD	Annual
Derivative (losses) gains on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$1.94M	USD	Annual
Derivative (losses) gains on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-214.00K	USD	Annual
Derivative (losses) gains on cash flow hedges	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$2.49M	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$-9.17M	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$-4.35M	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossBeforeTax`	$5.38M	USD	Annual
Income tax (expense) benefit	`OtherComprehensiveIncomeLossTax`	$-2.82M	USD	Annual
Income tax (expense) benefit	`OtherComprehensiveIncomeLossTax`	$46.00K	USD	Annual
Income tax (expense) benefit	`OtherComprehensiveIncomeLossTax`	$6.26M	USD	Annual
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-4.39M	USD	Annual
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-6.34M	USD	Annual
Other comprehensive income, net	`OtherComprehensiveIncomeLossNetOfTax`	$-881.00K	USD	Annual
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-86.45M	USD	Annual
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-139.49M	USD	Annual
Comprehensive Loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-39.42M	USD	Annual
Comprehensive Loss attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-4.54M	USD	Annual
Comprehensive Loss attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-2.21M	USD	Annual
Comprehensive Loss attributable to Noncontrolling Interests in Subsidiaries	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-5.36M	USD	Annual
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-137.29M	USD	Annual
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-81.90M	USD	Annual
Comprehensive Loss attributable to SEACOR Marine Holdings Inc.	`ComprehensiveIncomeNetOfTax`	$-34.06M	USD	Annual

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