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Redeemable Noncontrolling Interest - Narrative (Details) - EVgo OpCo	Mar. 31, 2023 shares
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

X

- 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

X

- 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

X

- 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

X

- 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: