Leases (Details)	6 Months Ended
Dec. 31, 2022 item
Leases
Lessee, finance lease or short term lease, number of contracts	0

Lessee, finance lease or short term lease, number of contracts

No definition available.

Name:	epm_LesseeFinanceLeaseOrShortTermLeaseNumberOfContracts
Namespace Prefix:	epm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration