Annual report pursuant to Section 13 and 15(d)

SUPPLEMENTAL INFORMATION FOR STATEMENTS OF CASH FLOWS Schedule of Supplemental Cash Flow Disclosures (Details)

v2.4.1.9
SUPPLEMENTAL INFORMATION FOR STATEMENTS OF CASH FLOWS Schedule of Supplemental Cash Flow Disclosures (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Supplemental Cash Flow Elements [Abstract]      
Benefit of net tax operating losses cash purchased by SEACOR $ 0era_BenefitofNetTaxOperatingLossCashPurchasedbyAffiliate $ 0era_BenefitofNetTaxOperatingLossCashPurchasedbyAffiliate $ 1,961era_BenefitofNetTaxOperatingLossCashPurchasedbyAffiliate
Income taxes paid, net of refunds 1,825us-gaap_IncomeTaxesPaidNet 20us-gaap_IncomeTaxesPaidNet 143us-gaap_IncomeTaxesPaidNet
Interest paid to others, excluding capitalized interest 13,420era_InterestPaidtoOthersNet 17,839era_InterestPaidtoOthersNet 7,821era_InterestPaidtoOthersNet
Schedule of non-cash investing and financing activities:      
Company financed sale of equipment and parts 0era_SaleofPropertyPlantandEquipmentwithNotesIssued 0era_SaleofPropertyPlantandEquipmentwithNotesIssued 350era_SaleofPropertyPlantandEquipmentwithNotesIssued
Non-cash distribution from Era do Brazil of a note receivable 0era_NoncashDistributiontoAffiliateNoteReceivable 0era_NoncashDistributiontoAffiliateNoteReceivable 4,618era_NoncashDistributiontoAffiliateNoteReceivable
Settlement of Series B Preferred Stock in exchange for net tax operating losses $ 0era_SettlementofSeriesBpreferredStockExchangeforNetTaxOperatingLosses $ 0era_SettlementofSeriesBpreferredStockExchangeforNetTaxOperatingLosses $ 50,000era_SettlementofSeriesBpreferredStockExchangeforNetTaxOperatingLosses