XML 116 R87.htm IDEA: XBRL DOCUMENT
v3.21.2

Subsequent Events (Details) - USD ($) | Sep. 09, 2021 | Aug. 05, 2021 | Jun. 30, 2021
--- | --- | --- | ---
Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Dividend declared (in dollars per share) | $ 0.075 |  |
Revolving Credit Facility | Senior Secured Reserve-Based Credit Facility | Line of Credit |  |  |
Subsequent Event [Line Items] |  |  |
Minimum consolidated tangible net worth |  |  | $ 50,000,000
Revolving Credit Facility | Senior Secured Reserve-Based Credit Facility | Line of Credit | Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Minimum consolidated tangible net worth |  | $ 40,000,000 |

X
- Definition Line of Credit Facility, Covenant Compliance, Minimum Consolidated Tangible Net Worth + References No definition available. + Details
Name: | epm_LineofCreditFacilityCovenantComplianceMinimumConsolidatedTangibleNetWorth
Namespace Prefix: | epm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

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_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=epm_SeniorSecuredReserveBasedCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |