XML 68 R58.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Derivative financial instruments (Additional Information) (Details) - USD ($) $ in Millions |  | 6 Months Ended
--- | --- | ---
Jun. 23, 2017 | Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
long-term interest rate swap percentage | 70.00% |
Other Comprehensive Income, Amount of gain (loss) recognized |  | $ (0.1)
Amount of gain (loss) recognized expected to be reclassified (Term) |  | 12 months

X
- Definition long-term interest rate swap percentage + References No definition available. + Details
Name: | ee_LongTermInterestRateSwapPercentage
Namespace Prefix: | ee_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Estimated period for the anticipated transfer of gain (loss), net, from accumulated other comprehensive income into earnings, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimateOfTimeToTransfer1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121549185&loc=d3e80845-113994 + Details
Name: | us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration