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Leases - Additional Information (Details) $ in Thousands | 12 Months Ended
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Aug. 31, 2021 USD ($)
Leases [Abstract] |
Sales Leaseback Transaction, Transaction Costs | $ 4,600
Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 60,885
Leese, Operating Lease, Lease not yet commenced | 2,400
Sale ​Leaseback ​Transaction ​Deferred​ Gain | $ 10,000

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- Definition Leese, Operating Lease, Lease not yet commenced - relates to lease to commence in upcoming fiscal year that is not included in other tables. + References No definition available. + Details
Name: | epac_LeeseOperatingLeaseLeaseNotYetCommenced
Namespace Prefix: | epac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Sale ​Leaseback ​Transaction ​Deferred​ Gain + References No definition available. + Details
Name: | epac_SaleLeasebackTransactionDeferredGain
Namespace Prefix: | epac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Sales Leaseback Transaction, Transaction Costs + References No definition available. + Details
Name: | epac_SalesLeasebackTransactionTransactionCosts
Namespace Prefix: | epac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant