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SUBSEQUENT EVENTS (Details) - USG € in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Sep. 30, 2020 USD ($) | Jun. 30, 2021 EUR (€)
Phenix |  |
SUBSEQUENT EVENT |  |
Projected annual sales | $ 25 |
Altanova |  |
SUBSEQUENT EVENT |  |
Projected annual sales | $ 30 |
Amount held in escrow account | € |  | € 30

X
- Definition Amount of projected annual revenues on the date of acquisition. + References No definition available. + Details
Name: | ese_ProjectedAnnualRevenuesOnDateOfAcquisition
Namespace Prefix: | ese_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
Name: | us-gaap_EscrowDeposit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ese_UtilitySolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ese_AssetAcquisitionAxis=ese_PhenixTechnologiesIncPhenixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=ese_I.s.a.AltanovaGroupS.r.l.AltanovaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |