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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands | Aug. 31, 2021 | Aug. 31, 2020
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Commitments and Contingencies Disclosure [Abstract] |  |
Outstanding letters of credit | $ 11,900 | $ 11,900
Contractual Obligation Future Minimum Payments Due Through End of Lease | $ 5,300 |

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- Definition Contractual Obligation Future Minimum Payments Due Through End of Lease + References No definition available. + Details
Name: | epac_ContractualObligationFutureMinimumPaymentsDueThroughEndOfLease
Namespace Prefix: | epac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant