The Number of Simulations on Fair Value Average Payout

No definition available.

Name:	ee_NumberOfSimulationsOnFairValueAveragePayout
Namespace Prefix:	ee_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Performance Shares Payout Level

+ References

No definition available.

+ Details

Name:	ee_PerformanceSharesPayoutLevel
Namespace Prefix:	ee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Payout Ratio

+ References

No definition available.

+ Details

Name:	ee_ShareBasedCompensationArrangementByShareBasedPaymentAwardPayoutRatio
Namespace Prefix:	ee_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based payment award based on an entity's performance, performance evaluation period.

+ References

No definition available.

+ Details

Name:	ee_SharebasedPaymentAwardonPerformancePerformanceEvaluationPeriod
Namespace Prefix:	ee_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of noncash expense for share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Description of method used to estimate fair value of award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMethodUsed
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares issued under share-based payment arrangement.

+ References

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=116856206&loc=d3e5070-113901

+ Details

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

- Definition

Intrinsic value of vested award under share-based payment arrangement. Excludes share and unit options.

+ References

No definition available.

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ee_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedDateAxis=ee_DateVested1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ee_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedDateAxis=ee_DateVested2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ee_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedDateAxis=ee_DateVested3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ee_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedDateAxis=ee_DateVested4Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: