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

Contract with customer liability decrease in marketing activities.

No definition available.

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

Amount of increase (decrease) in contract liabilities related to customer activity associated with each of our product offerings including the receipt of cash payments and the satisfaction of our performance obligations.

No definition available.

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

Contract with customer liability increase (decrease) for contract liability.

No definition available.

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

Amount of revenue recognized during the period.

No definition available.

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

Represents the percentage of change in contract liabilities.

No definition available.

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

- References

No definition available.

Name:	us-gaap_ChangeInContractWithCustomerLiabilityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130549-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130531-203044

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130533-203044

Name:	us-gaap_ContractWithCustomerAssetNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130531-203044

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130549-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130532-203044

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

- References

No definition available.