Quarterly report pursuant to Section 13 or 15(d)

Supplemental Condensed Consolidating Balance Sheet (Details)

v2.4.1.9
Supplemental Condensed Consolidating Balance Sheet (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Mar. 31, 2014
Dec. 31, 2013
Current assets:        
Cash and cash equivalents $ 33,691us-gaap_CashAndCashEquivalentsAtCarryingValue $ 40,867us-gaap_CashAndCashEquivalentsAtCarryingValue $ 22,290us-gaap_CashAndCashEquivalentsAtCarryingValue $ 31,335us-gaap_CashAndCashEquivalentsAtCarryingValue
Trade, net of allowance for doubtful accounts of $1,926 and $1,955 in 2015 and 2014, respectively 38,949us-gaap_ReceivablesNetCurrent 33,390us-gaap_ReceivablesNetCurrent    
Other, net of allowance for doubtful accounts of $437 in each of 2015 and 2014 2,567us-gaap_AccountsAndOtherReceivablesNetCurrent 2,062us-gaap_AccountsAndOtherReceivablesNetCurrent    
Inventories, net 26,189us-gaap_InventoryNet 26,869us-gaap_InventoryNet    
Deferred income taxes 2,167us-gaap_DeferredTaxAssetsNetCurrent 1,996us-gaap_DeferredTaxAssetsNetCurrent    
Prepaid expenses and other 4,081us-gaap_PrepaidExpenseAndOtherAssetsCurrent 2,661us-gaap_PrepaidExpenseAndOtherAssetsCurrent    
Escrow deposits 2,800us-gaap_EscrowDeposit 0us-gaap_EscrowDeposit    
Total current assets 110,444us-gaap_AssetsCurrent 107,845us-gaap_AssetsCurrent    
Property, Plant and Equipment [Abstract]        
Property and equipment 1,171,548us-gaap_PropertyPlantAndEquipmentGross 1,171,267us-gaap_PropertyPlantAndEquipmentGross    
Accumulated depreciation (315,399)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (308,141)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment    
Net property and equipment 856,149us-gaap_PropertyPlantAndEquipmentNet 863,126us-gaap_PropertyPlantAndEquipmentNet    
Equity investments and advances 31,397era_InvestmentsAtEquityAndAdvancesToFiftyPercentOrLessOwnedCompanies 31,753era_InvestmentsAtEquityAndAdvancesToFiftyPercentOrLessOwnedCompanies    
Investments in consolidated subsidiaries 0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures 0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures    
Goodwill 352us-gaap_Goodwill 352us-gaap_Goodwill    
Intercompany Receivables 0era_IntercompanyReceivables 0era_IntercompanyReceivables    
Other assets 15,156us-gaap_OtherAssetsNoncurrent 14,098us-gaap_OtherAssetsNoncurrent    
Total assets 1,013,498us-gaap_Assets 1,017,174us-gaap_Assets    
Current liabilities:        
Accounts payable and accrued expenses 13,904us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent 15,120us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent    
Accrued wages and benefits 6,822us-gaap_EmployeeRelatedLiabilitiesCurrent 7,521us-gaap_EmployeeRelatedLiabilitiesCurrent    
Accrued interest 4,791us-gaap_InterestPayableCurrent 949us-gaap_InterestPayableCurrent    
Current portion of long-term debt 26,729us-gaap_LongTermDebtCurrent 27,426us-gaap_LongTermDebtCurrent    
Derivative instruments 275us-gaap_DerivativeLiabilitiesCurrent 1,109us-gaap_DerivativeLiabilitiesCurrent    
Accrued income taxes 37us-gaap_AccruedIncomeTaxesCurrent 267us-gaap_AccruedIncomeTaxesCurrent    
Other current liabilities 3,121us-gaap_OtherLiabilitiesCurrent 3,162us-gaap_OtherLiabilitiesCurrent    
Total current liabilities 55,679us-gaap_LiabilitiesCurrent 55,554us-gaap_LiabilitiesCurrent    
Long-term debt 277,424us-gaap_LongTermDebtNoncurrent 282,118us-gaap_LongTermDebtNoncurrent    
Deferred income taxes 217,200us-gaap_DeferredTaxLiabilitiesNoncurrent 217,027us-gaap_DeferredTaxLiabilitiesNoncurrent    
Intercompany Payables 0era_IntercompanyPayables 0era_IntercompanyPayables    
Other liabilities 1,937era_DeferredGainsAndOtherLiabilities 2,111era_DeferredGainsAndOtherLiabilities    
Total liabilities 552,240us-gaap_Liabilities 556,810us-gaap_Liabilities    
Era Group Inc. stockholders’ equity:        
Common stock, $0.01 par value, 60,000,000 shares authorized; 20,582,841 outstanding, exclusive of treasury shares 206us-gaap_CommonStockValue 204us-gaap_CommonStockValue    
Additional paid-in capital 430,251us-gaap_AdditionalPaidInCapital 429,109us-gaap_AdditionalPaidInCapital    
Retained earnings 31,755us-gaap_RetainedEarningsAccumulatedDeficit 31,797us-gaap_RetainedEarningsAccumulatedDeficit    
Treasury shares, at cost, 19,059 shares (560)us-gaap_TreasuryStockValue (551)us-gaap_TreasuryStockValue    
Accumulated other comprehensive income, net of tax 93us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax 95us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax    
Total Era Group Inc. stockholders’ equity 461,745us-gaap_StockholdersEquity 460,654us-gaap_StockholdersEquity    
Noncontrolling interest in subsidiary (487)us-gaap_MinorityInterest (290)us-gaap_MinorityInterest    
Total equity 461,258us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest 460,364us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest    
Total liabilities and stockholders’ equity 1,013,498us-gaap_LiabilitiesAndStockholdersEquity 1,017,174us-gaap_LiabilitiesAndStockholdersEquity    
Eliminations [Member]        
Current assets:        
Cash and cash equivalents 0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
Trade, net of allowance for doubtful accounts of $1,926 and $1,955 in 2015 and 2014, respectively 0us-gaap_ReceivablesNetCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_ReceivablesNetCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Other, net of allowance for doubtful accounts of $437 in each of 2015 and 2014 0us-gaap_AccountsAndOtherReceivablesNetCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AccountsAndOtherReceivablesNetCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Inventories, net 0us-gaap_InventoryNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_InventoryNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Deferred income taxes (5,819)us-gaap_DeferredTaxAssetsNetCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(2,087)us-gaap_DeferredTaxAssetsNetCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Prepaid expenses and other 0us-gaap_PrepaidExpenseAndOtherAssetsCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_PrepaidExpenseAndOtherAssetsCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Escrow deposits 0us-gaap_EscrowDeposit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_EscrowDeposit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total current assets (5,819)us-gaap_AssetsCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(2,087)us-gaap_AssetsCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Property, Plant and Equipment [Abstract]        
Property and equipment 0us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Accumulated depreciation 0us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Net property and equipment 0us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Equity investments and advances 0era_InvestmentsAtEquityAndAdvancesToFiftyPercentOrLessOwnedCompanies
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0era_InvestmentsAtEquityAndAdvancesToFiftyPercentOrLessOwnedCompanies
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Investments in consolidated subsidiaries (184,685)us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(182,294)us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Goodwill 0us-gaap_Goodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_Goodwill
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Intercompany Receivables (640,888)era_IntercompanyReceivables
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(630,585)era_IntercompanyReceivables
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Other assets 0us-gaap_OtherAssetsNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_OtherAssetsNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total assets (831,392)us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(814,966)us-gaap_Assets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Current liabilities:        
Accounts payable and accrued expenses 0us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Accrued wages and benefits 0us-gaap_EmployeeRelatedLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_EmployeeRelatedLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Accrued interest 0us-gaap_InterestPayableCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_InterestPayableCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Current portion of long-term debt 0us-gaap_LongTermDebtCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_LongTermDebtCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Derivative instruments 0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_DerivativeLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Accrued income taxes 0us-gaap_AccruedIncomeTaxesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AccruedIncomeTaxesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Other current liabilities 0us-gaap_OtherLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_OtherLiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total current liabilities 0us-gaap_LiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_LiabilitiesCurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Long-term debt 0us-gaap_LongTermDebtNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_LongTermDebtNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Deferred income taxes (5,819)us-gaap_DeferredTaxLiabilitiesNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(2,087)us-gaap_DeferredTaxLiabilitiesNoncurrent
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Intercompany Payables (640,888)era_IntercompanyPayables
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(630,585)era_IntercompanyPayables
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Other liabilities 0era_DeferredGainsAndOtherLiabilities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0era_DeferredGainsAndOtherLiabilities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total liabilities (646,707)us-gaap_Liabilities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(632,672)us-gaap_Liabilities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Era Group Inc. stockholders’ equity:        
Common stock, $0.01 par value, 60,000,000 shares authorized; 20,582,841 outstanding, exclusive of treasury shares 0us-gaap_CommonStockValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_CommonStockValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Additional paid-in capital (100,341)us-gaap_AdditionalPaidInCapital
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(100,341)us-gaap_AdditionalPaidInCapital
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Retained earnings (84,344)us-gaap_RetainedEarningsAccumulatedDeficit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(81,953)us-gaap_RetainedEarningsAccumulatedDeficit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Treasury shares, at cost, 19,059 shares 0us-gaap_TreasuryStockValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_TreasuryStockValue
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Accumulated other comprehensive income, net of tax 0us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total Era Group Inc. stockholders’ equity (184,685)us-gaap_StockholdersEquity
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(182,294)us-gaap_StockholdersEquity
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Noncontrolling interest in subsidiary 0us-gaap_MinorityInterest
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
0us-gaap_MinorityInterest
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total equity (184,685)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(182,294)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Total liabilities and stockholders’ equity (831,392)us-gaap_LiabilitiesAndStockholdersEquity
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(814,966)us-gaap_LiabilitiesAndStockholdersEquity
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Parent [Member]        
Current assets:        
Cash and cash equivalents 14,964us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
16,481us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
18,918us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
24,635us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Trade, net of allowance for doubtful accounts of $1,926 and $1,955 in 2015 and 2014, respectively 39us-gaap_ReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
39us-gaap_ReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Other, net of allowance for doubtful accounts of $437 in each of 2015 and 2014 66us-gaap_AccountsAndOtherReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
65us-gaap_AccountsAndOtherReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Inventories, net 0us-gaap_InventoryNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_InventoryNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Deferred income taxes 7,986us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
4,083us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Prepaid expenses and other 739us-gaap_PrepaidExpenseAndOtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
424us-gaap_PrepaidExpenseAndOtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Escrow deposits 0us-gaap_EscrowDeposit
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_EscrowDeposit
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total current assets 23,794us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
21,092us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Property, Plant and Equipment [Abstract]        
Property and equipment 0us-gaap_PropertyPlantAndEquipmentGross
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_PropertyPlantAndEquipmentGross
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Accumulated depreciation 0us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Net property and equipment 0us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Equity investments and advances 0era_InvestmentsAtEquityAndAdvancesToFiftyPercentOrLessOwnedCompanies
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0era_InvestmentsAtEquityAndAdvancesToFiftyPercentOrLessOwnedCompanies
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Investments in consolidated subsidiaries 184,685us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
182,294us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Goodwill 0us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Intercompany Receivables 627,077era_IntercompanyReceivables
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
616,932era_IntercompanyReceivables
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Other assets 6,445us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
6,914us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total assets 842,001us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
827,232us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Current liabilities:        
Accounts payable and accrued expenses 144us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
299us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Accrued wages and benefits 0us-gaap_EmployeeRelatedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_EmployeeRelatedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Accrued interest 4,772us-gaap_InterestPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
930us-gaap_InterestPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Current portion of long-term debt 0us-gaap_LongTermDebtCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_LongTermDebtCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Derivative instruments 0us-gaap_DerivativeLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
784us-gaap_DerivativeLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Accrued income taxes 0us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Other current liabilities 610us-gaap_OtherLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
556us-gaap_OtherLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total current liabilities 5,526us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
2,569us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Long-term debt 277,424us-gaap_LongTermDebtNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
282,118us-gaap_LongTermDebtNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Deferred income taxes 0us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Intercompany Payables 97,399era_IntercompanyPayables
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
81,986era_IntercompanyPayables
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Other liabilities 0era_DeferredGainsAndOtherLiabilities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0era_DeferredGainsAndOtherLiabilities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total liabilities 380,349us-gaap_Liabilities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
366,673us-gaap_Liabilities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Era Group Inc. stockholders’ equity:        
Common stock, $0.01 par value, 60,000,000 shares authorized; 20,582,841 outstanding, exclusive of treasury shares 206us-gaap_CommonStockValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
204us-gaap_CommonStockValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Additional paid-in capital 430,251us-gaap_AdditionalPaidInCapital
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
429,109us-gaap_AdditionalPaidInCapital
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Retained earnings 31,755us-gaap_RetainedEarningsAccumulatedDeficit
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
31,797us-gaap_RetainedEarningsAccumulatedDeficit
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Treasury shares, at cost, 19,059 shares (560)us-gaap_TreasuryStockValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(551)us-gaap_TreasuryStockValue
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Accumulated other comprehensive income, net of tax 0us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total Era Group Inc. stockholders’ equity 461,652us-gaap_StockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
460,559us-gaap_StockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Noncontrolling interest in subsidiary 0us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
0us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total equity 461,652us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
460,559us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Total liabilities and stockholders’ equity 842,001us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
827,232us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Guarantor [Member]        
Current assets:        
Cash and cash equivalents 16,528us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
22,188us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
1,887us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
5,403us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
Trade, net of allowance for doubtful accounts of $1,926 and $1,955 in 2015 and 2014, respectively 38,910us-gaap_ReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
33,351us-gaap_ReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Other, net of allowance for doubtful accounts of $437 in each of 2015 and 2014 2,501us-gaap_AccountsAndOtherReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
1,997us-gaap_AccountsAndOtherReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Inventories, net 26,189us-gaap_InventoryNet
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
26,869us-gaap_InventoryNet
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Deferred income taxes 0us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Prepaid expenses and other 3,342us-gaap_PrepaidExpenseAndOtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
2,237us-gaap_PrepaidExpenseAndOtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Escrow deposits 2,800us-gaap_EscrowDeposit
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_EscrowDeposit
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total current assets 90,270us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
86,642us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Property, Plant and Equipment [Abstract]        
Property and equipment 1,161,611us-gaap_PropertyPlantAndEquipmentGross
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
1,161,330us-gaap_PropertyPlantAndEquipmentGross
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Accumulated depreciation (313,122)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
(306,010)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Net property and equipment 848,489us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
855,320us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Equity investments and advances 31,397era_InvestmentsAtEquityAndAdvancesToFiftyPercentOrLessOwnedCompanies
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
31,753era_InvestmentsAtEquityAndAdvancesToFiftyPercentOrLessOwnedCompanies
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Investments in consolidated subsidiaries 0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Goodwill 352us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
352us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Intercompany Receivables 12,420era_IntercompanyReceivables
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
12,258era_IntercompanyReceivables
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Other assets 8,711us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
7,184us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total assets 991,639us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
993,509us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Current liabilities:        
Accounts payable and accrued expenses 13,672us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
14,817us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Accrued wages and benefits 6,822us-gaap_EmployeeRelatedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
7,521us-gaap_EmployeeRelatedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Accrued interest 19us-gaap_InterestPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
19us-gaap_InterestPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Current portion of long-term debt 26,729us-gaap_LongTermDebtCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
27,426us-gaap_LongTermDebtCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Derivative instruments 275us-gaap_DerivativeLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
325us-gaap_DerivativeLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Accrued income taxes 37us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
267us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Other current liabilities 2,511us-gaap_OtherLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
2,606us-gaap_OtherLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total current liabilities 50,065us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
52,981us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Long-term debt 0us-gaap_LongTermDebtNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_LongTermDebtNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Deferred income taxes 223,019us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
219,114us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Intercompany Payables 531,069era_IntercompanyPayables
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
536,341era_IntercompanyPayables
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Other liabilities 1,937era_DeferredGainsAndOtherLiabilities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
2,111era_DeferredGainsAndOtherLiabilities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total liabilities 806,090us-gaap_Liabilities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
810,547us-gaap_Liabilities
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Era Group Inc. stockholders’ equity:        
Common stock, $0.01 par value, 60,000,000 shares authorized; 20,582,841 outstanding, exclusive of treasury shares 0us-gaap_CommonStockValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_CommonStockValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Additional paid-in capital 99,845us-gaap_AdditionalPaidInCapital
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
99,845us-gaap_AdditionalPaidInCapital
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Retained earnings 86,098us-gaap_RetainedEarningsAccumulatedDeficit
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
83,312us-gaap_RetainedEarningsAccumulatedDeficit
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Treasury shares, at cost, 19,059 shares 0us-gaap_TreasuryStockValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
0us-gaap_TreasuryStockValue
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Accumulated other comprehensive income, net of tax 93us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
95us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total Era Group Inc. stockholders’ equity 186,036us-gaap_StockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
183,252us-gaap_StockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Noncontrolling interest in subsidiary (487)us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
(290)us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total equity 185,549us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
182,962us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Total liabilities and stockholders’ equity 991,639us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
993,509us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_GuarantorSubsidiariesMember
   
Non-Guarantor [Member]        
Current assets:        
Cash and cash equivalents 2,199us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
2,198us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
1,485us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
1,297us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
Trade, net of allowance for doubtful accounts of $1,926 and $1,955 in 2015 and 2014, respectively 0us-gaap_ReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_ReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Other, net of allowance for doubtful accounts of $437 in each of 2015 and 2014 0us-gaap_AccountsAndOtherReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_AccountsAndOtherReceivablesNetCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Inventories, net 0us-gaap_InventoryNet
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_InventoryNet
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Deferred income taxes 0us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_DeferredTaxAssetsNetCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Prepaid expenses and other 0us-gaap_PrepaidExpenseAndOtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_PrepaidExpenseAndOtherAssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Escrow deposits 0us-gaap_EscrowDeposit
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_EscrowDeposit
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total current assets 2,199us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
2,198us-gaap_AssetsCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Property, Plant and Equipment [Abstract]        
Property and equipment 9,937us-gaap_PropertyPlantAndEquipmentGross
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
9,937us-gaap_PropertyPlantAndEquipmentGross
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Accumulated depreciation (2,277)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
(2,131)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Net property and equipment 7,660us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
7,806us-gaap_PropertyPlantAndEquipmentNet
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Equity investments and advances 0era_InvestmentsAtEquityAndAdvancesToFiftyPercentOrLessOwnedCompanies
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0era_InvestmentsAtEquityAndAdvancesToFiftyPercentOrLessOwnedCompanies
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Investments in consolidated subsidiaries 0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Goodwill 0us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_Goodwill
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Intercompany Receivables 1,391era_IntercompanyReceivables
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
1,395era_IntercompanyReceivables
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Other assets 0us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_OtherAssetsNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total assets 11,250us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
11,399us-gaap_Assets
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Current liabilities:        
Accounts payable and accrued expenses 88us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
4us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Accrued wages and benefits 0us-gaap_EmployeeRelatedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_EmployeeRelatedLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Accrued interest 0us-gaap_InterestPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_InterestPayableCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Current portion of long-term debt 0us-gaap_LongTermDebtCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_LongTermDebtCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Derivative instruments 0us-gaap_DerivativeLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_DerivativeLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Accrued income taxes 0us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_AccruedIncomeTaxesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Other current liabilities 0us-gaap_OtherLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_OtherLiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total current liabilities 88us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
4us-gaap_LiabilitiesCurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Long-term debt 0us-gaap_LongTermDebtNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_LongTermDebtNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Deferred income taxes 0us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_DeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Intercompany Payables 12,420era_IntercompanyPayables
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
12,258era_IntercompanyPayables
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Other liabilities 0era_DeferredGainsAndOtherLiabilities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0era_DeferredGainsAndOtherLiabilities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total liabilities 12,508us-gaap_Liabilities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
12,262us-gaap_Liabilities
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Era Group Inc. stockholders’ equity:        
Common stock, $0.01 par value, 60,000,000 shares authorized; 20,582,841 outstanding, exclusive of treasury shares 0us-gaap_CommonStockValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_CommonStockValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Additional paid-in capital 496us-gaap_AdditionalPaidInCapital
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
496us-gaap_AdditionalPaidInCapital
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Retained earnings (1,754)us-gaap_RetainedEarningsAccumulatedDeficit
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
(1,359)us-gaap_RetainedEarningsAccumulatedDeficit
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Treasury shares, at cost, 19,059 shares 0us-gaap_TreasuryStockValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_TreasuryStockValue
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Accumulated other comprehensive income, net of tax 0us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total Era Group Inc. stockholders’ equity (1,258)us-gaap_StockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
(863)us-gaap_StockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Noncontrolling interest in subsidiary 0us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
0us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total equity (1,258)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
(863)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
   
Total liabilities and stockholders’ equity $ 11,250us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember
$ 11,399us-gaap_LiabilitiesAndStockholdersEquity
/ dei_LegalEntityAxis
= us-gaap_NonGuarantorSubsidiariesMember