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INCOME TAXES Components of Net Deferred Tax Liabilities (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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| Deferred tax liabilities: | ||
| Property and equipment | $ 222,521us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | $ 211,062us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment |
| Buy-in on maintenance contracts | 2,488era_DeferredTaxLiabilitiesOtherBuyinonMaintenancePrograms | 3,078era_DeferredTaxLiabilitiesOtherBuyinonMaintenancePrograms |
| Other | 0us-gaap_DeferredTaxLiabilitiesOther | 560us-gaap_DeferredTaxLiabilitiesOther |
| Total deferred tax liabilities | 225,009us-gaap_DeferredIncomeTaxLiabilities | 214,700us-gaap_DeferredIncomeTaxLiabilities |
| Deferred tax assets: | ||
| Equipment leases | 496us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment | 638us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment |
| State NOL | 6,857us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal | 6,874us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal |
| Other | 3,431us-gaap_DeferredTaxAssetsOther | 751us-gaap_DeferredTaxAssetsOther |
| Valuation allowance | (806)us-gaap_DeferredTaxAssetsValuationAllowance | (790)us-gaap_DeferredTaxAssetsValuationAllowance |
| Total deferred tax assets | 9,978us-gaap_DeferredTaxAssetsNet | 7,473us-gaap_DeferredTaxAssetsNet |
| Net deferred tax liabilities | $ 215,031us-gaap_DeferredTaxLiabilities | $ 207,227us-gaap_DeferredTaxLiabilities |
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- Definition
Deferred Tax Liabilities, Other, Buy-in on Maintenance Programs No definition available.
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. No definition available.
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- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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