LONG-TERM DEBT - Company Borrowings (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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Dec. 07, 2012
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Debt Instrument [Line Items] | |||
Long-term Debt | $ 312,426us-gaap_LongTermDebt | $ 285,311us-gaap_LongTermDebt | |
Portion due with one year | (27,426)us-gaap_LongTermDebtCurrent | (2,787)us-gaap_LongTermDebtCurrent | |
Unamortized discount | (2,882)us-gaap_DebtInstrumentUnamortizedDiscount | (3,133)us-gaap_DebtInstrumentUnamortizedDiscount | |
Long-term debt | 282,118us-gaap_LongTermDebtNoncurrent | 279,391us-gaap_LongTermDebtNoncurrent | |
Secured Debt [Member] | |||
Debt Instrument [Line Items] | |||
Long-term Debt |
27,426us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_SecuredDebtMember |
30,311us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_SecuredDebtMember |
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7.750% Senior Notes [Member] | Senior Notes [Member] | |||
Debt Instrument [Line Items] | |||
Long-term Debt |
200,000us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = era_Senior7Point750PercentNotesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
200,000us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = era_Senior7Point750PercentNotesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
200,000us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = era_Senior7Point750PercentNotesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Revolving Credit Facility [Member] | Secured Debt [Member] | |||
Debt Instrument [Line Items] | |||
Long-term Debt |
$ 85,000us-gaap_LongTermDebt / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SecuredDebtMember |
$ 55,000us-gaap_LongTermDebt / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SecuredDebtMember |
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- Definition
The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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