COMMITMENTS AND CONTINGENCIES (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2014
helicopter
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Dec. 31, 2013
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Dec. 31, 2012
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Operating Leased Assets [Line Items] | |||
Unrecorded Unconditional Purchase Obligation | $ 232,300,000us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount | ||
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months | 114,900,000us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary | ||
Deposits Paid on Options Not Yet Exercised | 1,900,000era_DepositsPaidonOptionsNotYetExercised | ||
Unrecorded Unconditional Purchase Obligation Balance Sheet Amount Potential Amount To Reduce Liability | 131,300,000era_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmountPotentialAmountToReduceLiability | ||
Unrecorded Unconditional Purchase Obligation Balance Sheet Amount Related To Liquidated Damage | 8,700,000era_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmountRelatedToLiquidatedDamage | ||
Aircraft maintenance credits period | 4 years | ||
Aircraft maintenance utilized credits | 4,400,000era_AircraftMaintenanceCreditsAmountUtilizedforthePeriod | ||
Number of helicopters leased | 4era_LesseeLeasingArrangementsNumberofHelicoptersLeased | ||
Rental expense | 4,400,000us-gaap_LeaseAndRentalExpense | 6,000,000us-gaap_LeaseAndRentalExpense | 4,000,000us-gaap_LeaseAndRentalExpense |
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity | |||
2015 | 2,078,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent | ||
2016 | 1,848,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears | ||
2017 | 1,613,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears | ||
2018 | 942,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears | ||
2019 | 455,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears | ||
Years subsequent to 2019 | $ 7,985,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter | ||
Minimum [Member] | |||
Operating Leased Assets [Line Items] | |||
Expected duration of aircraft maintenance credits | 1 year | ||
Lease term range | 1 year | ||
Maximum [Member] | |||
Operating Leased Assets [Line Items] | |||
Expected duration of aircraft maintenance credits | 2 years | ||
Lease term range | 10 years |
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- Definition
Aircraft Maintenance Credits Amount Utilized for the Period No definition available.
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Aircraft Maintenance Credits Expected Duration of Utilization No definition available.
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Aircraft Maintenance Credits Period of Availability No definition available.
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- Definition
Deposits Paid on Options Not Yet Exercised No definition available.
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Lessee Leasing Arrangements, Number of Helicopters Leased No definition available.
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Lessee Leasing Arrangements, Operating Leases, Term of Contract No definition available.
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Unrecorded Unconditional Purchase Obligation Balance Sheet Amount Potential Amount To Reduce Liability No definition available.
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- Definition
Unrecorded Unconditional Purchase Obligation Balance Sheet Amount Related To Liquidated Damage. No definition available.
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- Definition
Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
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- Details
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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