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Retirement And Other Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified | Sep. 30, 2014 | Sep. 30, 2013
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Defined Benefit Plan Before Adoption Of SFAS 158 Recognition Provision Accrued Benefit Liability | $ 0.9 | $ 0.7

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- Definition Defined Benefit Plan Before Adoption Of Sfas 158 Recognition Provision Accrued Benefit Liability + References No definition available. + Details
Name: | ese_DefinedBenefitPlanBeforeAdoptionOfSfas158RecognitionProvisionAccruedBenefitLiability
Namespace Prefix: | ese_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant