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v3.21.2

Business Segment, Geographic and Customer Information - Additional Information (Detail) | 12 Months Ended
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Aug. 31, 2021 | Aug. 31, 2020 | Aug. 31, 2019
Segment Reporting Information [Line Items] |  |  |
Largest customer sales in fiscal year, percent | 3.00% | 3.00% | 3.00%
Percentage Of Export Sales From Domestic To Total Net Sales | 7.20% | 7.30% | 7.40%

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- Definition Percentage Of Export Sales From Domestic To Total Net Sales + References No definition available. + Details
Name: | epac_PercentageOfExportSalesFromDomesticToTotalNetSales
Namespace Prefix: | epac_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Sales Percentage Represented By Major Customers + References No definition available. + Details
Name: | epac_SalesPercentageRepresentedByMajorCustomers
Namespace Prefix: | epac_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration