Tax Receivable Agreement (Details)	12 Months Ended
Dec. 31, 2021
Tax Receivable Agreement
Percentage Of Net Cash Savings Owed Per Agreement	85.00%

The percentage of net cash savings owed per agreement related to income taxes.

No definition available.

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