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FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2024
FAIR VALUE MEASUREMENTS |  |
Fair value impairments | $ 0 | $ 0

X
- Definition Amount of fair value disclosure asset not measured at fair value impairments. + References No definition available. + Details
Name: | ese_FairValueDisclosureAssetNotMeasuredAtFairValueImpairments
Namespace Prefix: | ese_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration