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Redeemable Noncontrolling Interest - Narrative (Details) - EVgo OpCo | Mar. 31, 2023 shares
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Units owned | 195,800,000
Common shares subject to possible forfeiture | 718,750
Percentage of ownership interest held | 73.30%
Post-transaction ownership percentage of the target business | 73.20%
Class B Common Stock [Member] |
Percentage of voting interest | 73.20%

X
- Definition Common shares are not included in number of owned shares and subject to possible forfeiture. + References No definition available. + Details
Name: | evgo_CommonSharesAreNotIncludedInNumberOfOwnedSharesAndSubjectToPossibleForfeitureShares
Namespace Prefix: | evgo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Definition Percentage of ownership interest held. + References No definition available. + Details
Name: | evgo_PercentageOfOwnershipInterestHeld
Namespace Prefix: | evgo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Percentage of voting interest. + References No definition available. + Details
Name: | evgo_PercentageOfVotingInterest
Namespace Prefix: | evgo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Post-transaction ownership percentage of the outstanding voting securities of the target business. + References No definition available. + Details
Name: | evgo_PostTransactionOwnershipPercentageOfTheTargetBusiness
Namespace Prefix: | evgo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Number of units owned. Each unit consists of one share of Class A common stock and one redeemable warrant. + References No definition available. + Details
Name: | evgo_UnitsOwnedShares
Namespace Prefix: | evgo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |