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Related Party Transactions (Details) (SEACOR [Member], USD $)
In Millions, unless otherwise specified |
3 Months Ended | ||
|---|---|---|---|
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Mar. 31, 2015
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Mar. 31, 2014
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Dec. 31, 2014
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| Related Party Transaction [Line Items] | |||
| Due to Seacor | $ 0.1us-gaap_DueToRelatedPartiesCurrentAndNoncurrent | $ 0.3us-gaap_DueToRelatedPartiesCurrentAndNoncurrent | |
| Amended and Restated Transition Services Agreement [Member] | |||
| Related Party Transaction [Line Items] | |||
| Expenses from transactions with related party |
$ 0.4us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionAxis = era_AmendedAndRestatedTransitionServicesAgreementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
$ 0.8us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionAxis = era_AmendedAndRestatedTransitionServicesAgreementMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
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| X | ||||||||||
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- Definition
Carrying amount as of the balance sheet date of obligations due all related parties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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