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Represents the unrecognized cost of share-based awards (other than options), which will be recognized in the fifth fiscal year following the latest fiscal year, made to employees under an equity-based compensation plan that are yet to vest.

No definition available.

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Represents the unrecognized cost of share-based awards (other than options), which will be recognized in the fourth fiscal year following the latest fiscal year, made to employees under an equity-based compensation plan that are yet to vest.

No definition available.

Name:	eac_EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostRecognizedInYearFourShareBasedAwardsOtherThanOptions
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Represents the unrecognized cost of share-based awards (other than options), which will be recognized in the sixth fiscal year following the latest fiscal year, made to employees under an equity-based compensation plan that are yet to vest.

No definition available.

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Represents the unrecognized cost of share-based awards (other than options), which will be recognized in the third fiscal year following the latest fiscal year, made to employees under an equity-based compensation plan that are yet to vest.

No definition available.

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Represents the unrecognized cost of share-based awards (other than options), which will be recognized in the second fiscal year following the latest fiscal year, made to employees under an equity-based compensation plan that are yet to vest.

No definition available.

Name:	eac_EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostRecognizedInYearTwoShareBasedAwardsOtherThanOptions
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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph g(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809

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- Details

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Aggregate unrecognized cost of share-based awards, other than options, made to employees under an equity-based compensation plan, that have yet to vest.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Data Type:	xbrli:sharesItemType
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- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.