Name:	eres_GasAndOilAreaDevelopedNet1
Namespace Prefix:	eres_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Number of oil- and gas-producing wells and oil and gas wells capable of production with working interest ownership.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph a
-Publisher SEC

Name:	srt_OilAndGasProductiveWellGrossNumber
Namespace Prefix:	srt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Total contributions made by each class of partners (i.e., general, limited and preferred partners).

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480100/505-10-S45-8

Name:	us-gaap_PartnersCapitalAccountContributions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Monetary value of the issuance of new units of limited partnership interest in a public offering.

Name:	us-gaap_PartnersCapitalAccountPublicSaleOfUnits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount, after offering cost, from issuance of new unit of limited partnership interest in public offering.

Name:	us-gaap_PartnersCapitalAccountPublicSaleOfUnitsNetOfOfferingCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The number of units sold in a public offering of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.