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v3.23.1

Commitments and Contingencies - Narrative (Details) |  |  |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 12, 2022 item | Jul. 05, 2022 USD ($) item | Jul. 20, 2020 item | Dec. 31, 2022 USD ($) | Mar. 31, 2023 USD ($) item
Purchase Commitment for Charging Equipment [Member] |  |  |  |  |
Purchase order commitments outstanding | $ |  |  |  |  | $ 66,000,000.0
Pilot Flying J Agreement [Member] |  |  |  |  |
Charger installation, maximum liquidated damages | $ |  | $ 30,000 |  |  |
Early termination rights, threshold charging stalls |  | 1,000 |  |  |
Pilot Flying J Agreement [Member] | Maximum |  |  |  |  |
Threshold number of stalls to be built, operated and maintained |  | 2,000 |  |  |
Delta Charger Supply Agreement and Purchase Order [Member] |  |  |  |  |
Minimum number of chargers committed to be purchased | 1,000 |  |  |  |
Increased purchase commitment, number of chargers | 1,100 |  |  |  |
Nissan Agreement [Member] |  |  |  |  |
Future build schedule penalty amount, per site | $ |  |  |  |  | $ 70,000
Period of charging credit |  |  |  |  | 12 months
Extension term of installation deadline under build schedule |  |  |  |  | 12 months
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 |
Number of chargers to be installed |  |  | 3,250 |  |
Second amendment agreement with GM | Scenario Plan Date March 31, 2026 [Member] |  |  |  |  |
Number of chargers to be installed |  |  |  |  | 3,250
Second amendment agreement with GM | Scenario Plan Date December 31, 2023 [Member] |  |  |  |  |
Percentage of chargers installation completed |  |  |  |  | 44.00%
GM Agreement [Member] |  |  |  |  |
Contract term |  |  | 5 years |  |
Agreement liquidation damage amount if counterparty terminates | $ |  |  |  |  | $ 15,000,000.0
Number of chargers to be installed |  |  | 2,750 |  |

X
- Definition Agreement liquidation damage amount if counterparty terminates. + References No definition available. + Details
Name: | evgo_AgreementLiquidationDamageAmountIfCounterpartyTerminates
Namespace Prefix: | evgo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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

X
- 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

X
- 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

X
- Definition The maximum amount of liquidated damages to be paid by the company in case of default in charger installation. + References No definition available. + Details
Name: | evgo_DefaultInChargerInstallationMaximumLiquidatedDamages
Namespace Prefix: | evgo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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
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Namespace Prefix: | evgo_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- 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

X
- Definition Number of chargers representing increased purchase commitment under the agreement. + References No definition available. + Details
Name: | evgo_IncreasedPurchaseCommitmentNumberOfChargers
Namespace Prefix: | evgo_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of chargers to be installed. + References No definition available. + Details
Name: | evgo_NumberOfChargersToBeInstalled
Namespace Prefix: | evgo_
Data Type: | xbrli:positiveIntegerItemType
Balance Type: | na
Period Type: | duration

X
- 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

X
- Definition Percentage of chargers installation completed. + References No definition available. + Details
Name: | evgo_PercentageOfChargersInstallationCompleted
Namespace Prefix: | evgo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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

X
- Definition Term of agreement. + References No definition available. + Details
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Namespace Prefix: | evgo_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- 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

X
- 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

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
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Period Type: |