Name:	eepl_MinimumPercentageOfOutstandingUnitsTenderedToUseProratedMethodForCalculatingActualNumberOfUnitsAcquired
Namespace Prefix:	eepl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Net price paid or to be paid per limited partnership unit for limited partnership units repurchased pursuant to the Company's annual Repurchase Right.

No definition available.

Name:	eepl_NetRepurchasePriceOfPartnerUnit
Namespace Prefix:	eepl_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Cash distributions received per limited partnership unit by Unitholders during the interim period as defined by the Repurchase Right provision in the Company's partnership agreement.

No definition available.

Name:	eepl_PartnersEquityInterimDistributions
Namespace Prefix:	eepl_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Percentage of adjusted book value of the Company allocable to limited partnership units for purposes of calculating the repurchase price pursuant to the Company's annual Repurchase Right.

No definition available.

Name:	eepl_PercentageOfAdjustedBookValueOfCompanyAllocableToTheRepurchaseRightPerUnit
Namespace Prefix:	eepl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Maximum percentage of limited partnership units to be repurchased between May 1 and June 30 each year pursuant to the Company's annual Repurchase Right.

No definition available.

Name:	eepl_PercentageOfMaximumUnitsToBeRepurchased
Namespace Prefix:	eepl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The number of limited partner units outstanding.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

Name:	us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Units that were previously issued and have been repurchased during the year.

Name:	us-gaap_PartnersCapitalAccountUnitsTreasury
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Gross number of share options (or share units) granted during the period.

No definition available.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Number of options outstanding, including both vested and non-vested options.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901