Annual report pursuant to Section 13 and 15(d)

INCOME TAXES Components of Net Deferred Tax Liabilities (Details)

v2.4.1.9
INCOME TAXES Components of Net Deferred Tax Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
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