NATURE OF OPERATIONS AND ACCOUNTING POLICIES Revenue Recognition Narrative (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Schedule of Equity Method Investments [Line Items] | ||||
Deferred revenue | $ 31,047us-gaap_DeferredRevenue | $ 24,243us-gaap_DeferredRevenue | $ 8,953us-gaap_DeferredRevenue | $ 123us-gaap_DeferredRevenue |
Revenue recognized during period | 25,338us-gaap_DeferredRevenueRevenueRecognized | 22,646us-gaap_DeferredRevenueRevenueRecognized | 17,078us-gaap_DeferredRevenueRevenueRecognized | |
Service agreement cancellation period | 30 days | |||
Aeroleo [Member] | ||||
Schedule of Equity Method Investments [Line Items] | ||||
Deferred revenue |
31,000us-gaap_DeferredRevenue / us-gaap_MajorCustomersAxis = era_AeroleoMember |
21,000us-gaap_DeferredRevenue / us-gaap_MajorCustomersAxis = era_AeroleoMember |
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Customer [Member] | ||||
Schedule of Equity Method Investments [Line Items] | ||||
Deferred revenue |
0us-gaap_DeferredRevenue / us-gaap_MajorCustomersAxis = era_CustomerMember |
3,200us-gaap_DeferredRevenue / us-gaap_MajorCustomersAxis = era_CustomerMember |
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Revenue recognized during period |
$ 1,700us-gaap_DeferredRevenueRevenueRecognized / us-gaap_MajorCustomersAxis = era_CustomerMember |
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Minimum [Member] | ||||
Schedule of Equity Method Investments [Line Items] | ||||
Service agreement period | 1 month | |||
Hospital service agreement termination period | 2 years | |||
Maximum [Member] | ||||
Schedule of Equity Method Investments [Line Items] | ||||
Service agreement period | 5 years | |||
Hospital service agreement termination period | 5 years |
X | ||||||||||
- Definition
Deferred Revenue, Dry Lease Term No definition available.
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Deferred Revenue, Service Agreement Cancellation Period No definition available.
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- Definition
Deferred Revenue, Service Agreement Period No definition available.
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- Definition
Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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