Supplemental Condensed Consolidating Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified
|
3 Months Ended |
Mar. 31, 2015
|
Mar. 31, 2014
|
Condensed Cash Flow Statements, Captions [Line Items] |
|
|
Net cash provided by (used in) operating activities |
$ 6,788us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
$ 11,277us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
Cash flows from investing activities: |
|
|
Purchases of property and equipment |
(8,866)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
|
(18,751)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
|
Proceeds from disposition of property and equipment |
5,379us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
|
3,566us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
|
Cash settlements on forward contracts, net |
(1,103)us-gaap_PaymentsForProceedsFromHedgeInvestingActivities
|
0us-gaap_PaymentsForProceedsFromHedgeInvestingActivities
|
Principal payments on notes due from equity investees |
169us-gaap_PaymentsForProceedsFromOtherInvestingActivities
|
161us-gaap_PaymentsForProceedsFromOtherInvestingActivities
|
Principal payments on third party notes receivable |
25era_CashInflowAndOutflowFromNotesReceivable
|
36era_CashInflowAndOutflowFromNotesReceivable
|
Escrow deposits, net |
(2,800)era_NetIncreaseInEscrowDepositsOnLikeKindExchanges
|
(3,048)era_NetIncreaseInEscrowDepositsOnLikeKindExchanges
|
Repayment of Intercompany Debt, Investing Activities |
0era_RepaymentofIntercompanyDebtInvestingActivities
|
|
Net cash used in investing activities |
(7,196)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
(18,036)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
Cash flows from financing activities: |
|
|
Payments on long-term debt |
(15,697)era_PaymentsOnLongTermDebtAndCapitalLeaseObligations
|
(697)era_PaymentsOnLongTermDebtAndCapitalLeaseObligations
|
Proceeds from Revolving Credit Facility |
(20,000)us-gaap_ProceedsFromLongTermLinesOfCredit
|
0us-gaap_ProceedsFromLongTermLinesOfCredit
|
Revolving Credit Facility issuance costs |
0us-gaap_PaymentsOfFinancingCosts
|
(2,115)us-gaap_PaymentsOfFinancingCosts
|
Extinguishment of long-term debt |
(9,297)us-gaap_EarlyRepaymentOfSeniorDebt
|
0us-gaap_EarlyRepaymentOfSeniorDebt
|
Proceeds from share award plans |
612us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
529us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
Repayment of Intercompany Debt, Financing Activities |
0era_RepaymentofIntercompanyDebtFinancingActivities
|
|
Repayment of intercompany debt |
|
0us-gaap_RepaymentsOfRelatedPartyDebt
|
Net cash used in financing activities |
(4,382)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
(2,283)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
Effects of exchange rate changes on cash and cash equivalents |
(2,386)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations
|
(3)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations
|
Net decrease in cash and cash equivalents |
(7,176)us-gaap_NetCashProvidedByUsedInContinuingOperations
|
(9,045)us-gaap_NetCashProvidedByUsedInContinuingOperations
|
Cash and cash equivalents, beginning of period |
40,867us-gaap_CashAndCashEquivalentsAtCarryingValue
|
31,335us-gaap_CashAndCashEquivalentsAtCarryingValue
|
Cash and cash equivalents, end of period |
33,691us-gaap_CashAndCashEquivalentsAtCarryingValue
|
22,290us-gaap_CashAndCashEquivalentsAtCarryingValue
|
Eliminations [Member] |
|
|
Condensed Cash Flow Statements, Captions [Line Items] |
|
|
Net cash provided by (used in) operating activities |
0us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Cash flows from investing activities: |
|
|
Purchases of property and equipment |
0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Proceeds from disposition of property and equipment |
0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Cash settlements on forward contracts, net |
(1,103)us-gaap_PaymentsForProceedsFromHedgeInvestingActivities / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
|
Principal payments on notes due from equity investees |
0us-gaap_PaymentsForProceedsFromOtherInvestingActivities / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0us-gaap_PaymentsForProceedsFromOtherInvestingActivities / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Principal payments on third party notes receivable |
0era_CashInflowAndOutflowFromNotesReceivable / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0era_CashInflowAndOutflowFromNotesReceivable / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Escrow deposits, net |
0era_NetIncreaseInEscrowDepositsOnLikeKindExchanges / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0era_NetIncreaseInEscrowDepositsOnLikeKindExchanges / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Repayment of Intercompany Debt, Investing Activities |
1,103era_RepaymentofIntercompanyDebtInvestingActivities / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
|
Net cash used in investing activities |
0us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Cash flows from financing activities: |
|
|
Payments on long-term debt |
(15,000)era_PaymentsOnLongTermDebtAndCapitalLeaseObligations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0era_PaymentsOnLongTermDebtAndCapitalLeaseObligations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Proceeds from Revolving Credit Facility |
(20,000)us-gaap_ProceedsFromLongTermLinesOfCredit / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
|
Revolving Credit Facility issuance costs |
|
(2,115)us-gaap_PaymentsOfFinancingCosts / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Extinguishment of long-term debt |
(9,297)us-gaap_EarlyRepaymentOfSeniorDebt / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
|
Proceeds from share award plans |
612us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
529us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Repayment of Intercompany Debt, Financing Activities |
3,685era_RepaymentofIntercompanyDebtFinancingActivities / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
|
Repayment of intercompany debt |
|
1,586us-gaap_RepaymentsOfRelatedPartyDebt / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Net cash used in financing activities |
0us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Effects of exchange rate changes on cash and cash equivalents |
0us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Net decrease in cash and cash equivalents |
0us-gaap_NetCashProvidedByUsedInContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0us-gaap_NetCashProvidedByUsedInContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Cash and cash equivalents, beginning of period |
0us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Cash and cash equivalents, end of period |
0us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
0us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_ConsolidationItemsAxis = us-gaap_ConsolidationEliminationsMember
|
Parent [Member] |
|
|
Condensed Cash Flow Statements, Captions [Line Items] |
|
|
Net cash provided by (used in) operating activities |
(1,517)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
(5,717)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Cash flows from investing activities: |
|
|
Purchases of property and equipment |
0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Proceeds from disposition of property and equipment |
0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Cash settlements on forward contracts, net |
0us-gaap_PaymentsForProceedsFromHedgeInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
|
Principal payments on notes due from equity investees |
0us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
0us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Principal payments on third party notes receivable |
0era_CashInflowAndOutflowFromNotesReceivable / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
0era_CashInflowAndOutflowFromNotesReceivable / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Escrow deposits, net |
0era_NetIncreaseInEscrowDepositsOnLikeKindExchanges / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
0era_NetIncreaseInEscrowDepositsOnLikeKindExchanges / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Repayment of Intercompany Debt, Investing Activities |
0era_RepaymentofIntercompanyDebtInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
|
Net cash used in investing activities |
0us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
0us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Cash flows from financing activities: |
|
|
Payments on long-term debt |
0era_PaymentsOnLongTermDebtAndCapitalLeaseObligations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
0era_PaymentsOnLongTermDebtAndCapitalLeaseObligations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Proceeds from Revolving Credit Facility |
0us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
|
Revolving Credit Facility issuance costs |
|
0us-gaap_PaymentsOfFinancingCosts / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Extinguishment of long-term debt |
0us-gaap_EarlyRepaymentOfSeniorDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
|
Proceeds from share award plans |
0us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
0us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Repayment of Intercompany Debt, Financing Activities |
0era_RepaymentofIntercompanyDebtFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
|
Repayment of intercompany debt |
|
0us-gaap_RepaymentsOfRelatedPartyDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Net cash used in financing activities |
0us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
0us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Effects of exchange rate changes on cash and cash equivalents |
0us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
0us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Net decrease in cash and cash equivalents |
(1,517)us-gaap_NetCashProvidedByUsedInContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
(5,717)us-gaap_NetCashProvidedByUsedInContinuingOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Cash and cash equivalents, beginning of period |
16,481us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
24,635us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Cash and cash equivalents, end of period |
14,964us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
18,918us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
|
Guarantor [Member] |
|
|
Condensed Cash Flow Statements, Captions [Line Items] |
|
|
Net cash provided by (used in) operating activities |
8,304us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
16,806us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Cash flows from investing activities: |
|
|
Purchases of property and equipment |
(8,866)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
(18,751)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Proceeds from disposition of property and equipment |
5,379us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
3,566us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Cash settlements on forward contracts, net |
0us-gaap_PaymentsForProceedsFromHedgeInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
|
Principal payments on notes due from equity investees |
169us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
161us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Principal payments on third party notes receivable |
25era_CashInflowAndOutflowFromNotesReceivable / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
36era_CashInflowAndOutflowFromNotesReceivable / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Escrow deposits, net |
(2,800)era_NetIncreaseInEscrowDepositsOnLikeKindExchanges / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
(3,048)era_NetIncreaseInEscrowDepositsOnLikeKindExchanges / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Repayment of Intercompany Debt, Investing Activities |
(1,103)era_RepaymentofIntercompanyDebtInvestingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
|
Net cash used in investing activities |
(7,196)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
(18,036)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Cash flows from financing activities: |
|
|
Payments on long-term debt |
(697)era_PaymentsOnLongTermDebtAndCapitalLeaseObligations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
(697)era_PaymentsOnLongTermDebtAndCapitalLeaseObligations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Proceeds from Revolving Credit Facility |
0us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
|
Revolving Credit Facility issuance costs |
|
0us-gaap_PaymentsOfFinancingCosts / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Extinguishment of long-term debt |
0us-gaap_EarlyRepaymentOfSeniorDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
|
Proceeds from share award plans |
0us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
0us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Repayment of Intercompany Debt, Financing Activities |
(3,685)era_RepaymentofIntercompanyDebtFinancingActivities / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
|
Repayment of intercompany debt |
|
(1,586)us-gaap_RepaymentsOfRelatedPartyDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Net cash used in financing activities |
(4,382)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
(2,283)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Effects of exchange rate changes on cash and cash equivalents |
(2,386)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
(3)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Net decrease in cash and cash equivalents |
(5,660)us-gaap_NetCashProvidedByUsedInContinuingOperations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
(3,516)us-gaap_NetCashProvidedByUsedInContinuingOperations / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Cash and cash equivalents, beginning of period |
22,188us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
5,403us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Cash and cash equivalents, end of period |
16,528us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
1,887us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
|
Non-Guarantor [Member] |
|
|
Condensed Cash Flow Statements, Captions [Line Items] |
|
|
Net cash provided by (used in) operating activities |
1us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
188us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Cash flows from investing activities: |
|
|
Purchases of property and equipment |
0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
0us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Proceeds from disposition of property and equipment |
0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Cash settlements on forward contracts, net |
0us-gaap_PaymentsForProceedsFromHedgeInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
|
Principal payments on notes due from equity investees |
0us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
0us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Principal payments on third party notes receivable |
0era_CashInflowAndOutflowFromNotesReceivable / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
0era_CashInflowAndOutflowFromNotesReceivable / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Escrow deposits, net |
0era_NetIncreaseInEscrowDepositsOnLikeKindExchanges / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
0era_NetIncreaseInEscrowDepositsOnLikeKindExchanges / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Repayment of Intercompany Debt, Investing Activities |
0era_RepaymentofIntercompanyDebtInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
|
Net cash used in investing activities |
0us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
0us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Cash flows from financing activities: |
|
|
Payments on long-term debt |
0era_PaymentsOnLongTermDebtAndCapitalLeaseObligations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
0era_PaymentsOnLongTermDebtAndCapitalLeaseObligations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Proceeds from Revolving Credit Facility |
0us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
|
Revolving Credit Facility issuance costs |
|
0us-gaap_PaymentsOfFinancingCosts / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Extinguishment of long-term debt |
0us-gaap_EarlyRepaymentOfSeniorDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
|
Proceeds from share award plans |
0us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
0us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Repayment of Intercompany Debt, Financing Activities |
0era_RepaymentofIntercompanyDebtFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
|
Net cash used in financing activities |
0us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
0us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Effects of exchange rate changes on cash and cash equivalents |
0us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
0us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Net decrease in cash and cash equivalents |
1us-gaap_NetCashProvidedByUsedInContinuingOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
188us-gaap_NetCashProvidedByUsedInContinuingOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Cash and cash equivalents, beginning of period |
2,198us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
1,297us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
Cash and cash equivalents, end of period |
$ 2,199us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|
$ 1,485us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
|