Agreement liquidation damage amount if counterparty terminates.

No definition available.

Name:	evgo_AgreementLiquidationDamageAmountIfCounterpartyTerminates
Namespace Prefix:	evgo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The extension term of installation deadline under build schedule.

+ References

No definition available.

+ Details

Name:	evgo_BuildScheduleInstallationDeadlineExtensionTerm
Namespace Prefix:	evgo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Charge to the participant in 12 month period of credit.

+ References

No definition available.

+ Details

Name:	evgo_ChargeToParticipantIn12MonthPeriod
Namespace Prefix:	evgo_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

The maximum amount of liquidated damages per site to be paid by the company in case of default in charger installation.

+ References

No definition available.

+ Details

Name:	evgo_ChargerInstallationMaximumLiquidatedDamagesPerSite
Namespace Prefix:	evgo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Charger station operational percentage benchmark.

+ References

No definition available.

+ Details

Name:	evgo_ChargerStationOperationalPercentageBenchmark
Namespace Prefix:	evgo_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The period of charging credit.

+ References

No definition available.

+ Details

Name:	evgo_ChargingCreditPeriod
Namespace Prefix:	evgo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold charging stalls, after installation of which the counter party has the right to elect for early termination of agreement.

+ References

No definition available.

+ Details

Name:	evgo_EarlyTerminationRightsThresholdChargingStalls
Namespace Prefix:	evgo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Future build schedule penalty amount.

+ References

No definition available.

+ Details

Name:	evgo_FutureBuildSchedulePenaltyAmount
Namespace Prefix:	evgo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of charger stalls to be installed.

+ References

No definition available.

+ Details

Name:	evgo_NumberOfChargerStallsToBeInstalled
Namespace Prefix:	evgo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum number of chargers to be purchased.

+ References

No definition available.

+ Details

Name:	evgo_NumberOfChargersPurchase
Namespace Prefix:	evgo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of days prior written notice to be given to terminate the agreement, if funds were not secured.

+ References

No definition available.

+ Details

Name:	evgo_NumberOfDaysWrittenNoticeToBeGivenIfFundsWereNotSecuredToTerminateAgreement
Namespace Prefix:	evgo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of payment in exchange for EVgo's agreement to apply certain branding decals on the fast chargers funded by GM pursuant to the GM Agreement.

+ References

No definition available.

+ Details

Name:	evgo_PaymentInExchangeForAgreementToApplyCertainBrandingDecals
Namespace Prefix:	evgo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of charger stalls installation completed.

+ References

No definition available.

+ Details

Name:	evgo_PercentageOfChargerStallsInstallationCompleted
Namespace Prefix:	evgo_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Minimum number of chargers committed to be purchased under the agreement.

+ References

No definition available.

+ Details

Name:	evgo_PurchaseCommitmentMinimumNumberOfChargers
Namespace Prefix:	evgo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of agreement.

+ References

No definition available.

+ Details

Name:	evgo_TermOfAgreement
Namespace Prefix:	evgo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold number of stalls to be built, operated and maintained under the agreement.

+ References

No definition available.

+ Details

Name:	evgo_ThresholdNumberOfStallsToBeBuiltOperatedAndMaintained
Namespace Prefix:	evgo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

No definition available.

+ Details

Name:	us-gaap_PurchaseObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of purchase arrangement to be paid in remainder of current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment.

+ References

No definition available.

+ Details

Name:	us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=us-gaap_EquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=evgo_PurchasecommitmentForServicesRelatedToConsultingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OtherCommitmentsAxis=evgo_PilotFlyingJAgreementMember
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_OtherCommitmentsAxis=evgo_DeltaChargerSupplyAgreementAndPurchaseOrderMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OtherCommitmentsAxis=evgo_NissanAgreementTwoPointZeroMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OtherCommitmentsAxis=evgo_SecondAmendmentAgreementWithGeneralMotorsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=evgo_ScenarioPlanDateMarch312026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=evgo_ScenarioPlanDateFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OtherCommitmentsAxis=evgo_GeneralMotorsAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and Contingencies - Narrative (Details)				1 Months Ended		6 Months Ended
Commitments and Contingencies - Narrative (Details)	Jul. 12, 2022 item	Jul. 05, 2022 USD ($) item	Jul. 20, 2020 USD ($) item	Dec. 31, 2022 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2024 USD ($)	Jul. 31, 2020 item
Purchase Commitment for Charging Equipment
Purchase order commitments outstanding						$ 29,000,000.0
Purchase order commitment, short term						25,300,000
Purchase Commitment for Consulting Services
Purchase order commitments outstanding						3,400,000
Pilot Flying J Agreement
Charger installation, maximum liquidated damages per site		$ 30,000
Early termination rights, threshold charging stalls \| item		1,000
Pilot Flying J Agreement \| Maximum
Threshold number of stalls to be built, operated and maintained \| item		2,000
Delta Charger Supply Agreement and Purchase Order
Minimum number of chargers committed to be purchased \| item	1,000
Maximum number of chargers to be purchased \| item	1,100
Nissan Agreement
Future build schedule penalty amount, per site					$ 70,000
Period of charging credit					12 months
Charge to the participant in 12 month period of credit						$ 0
Extension term of installation deadline under build schedule					12 months
Written notice						30 days
Second amendment agreement with GM
Charger station operational percentage benchmark			95.00%
Payment in exchange for agreement to apply certain branding decals				$ 7,000,000
Second amendment agreement with GM \| Scenario Plan Date March 31, 2026
Number of charger stalls to be installed \| item			3,250				3,250
Second amendment agreement with GM \| Scenario Plan Date June 30, 2024
Percentage of charger stalls installation completed						55.00%
GM Agreement
Contract term			5 years
Agreement liquidation damage amount if counterparty terminates			$ 15,000,000.0
Number of charger stalls to be installed \| item			2,750