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Description of business and nature of operations (Details) - USD ($)	Jul. 01, 2021	Oct. 02, 2020	Mar. 31, 2023
Class A Common Stock [Member]
Conversion ratio	1
Class B Common Stock [Member]
Conversion ratio	1
EVgo OpCo
Units owned			195,800,000
Post-transaction ownership percentage of the target business			73.20%
Private Placement Warrants [Member] | Climate Change Crisis Real Impact I Acquisition Corporation [Member]
Warrants issued (in shares)		6,600,000
Unit price (in dollars per share)		$ 1.00
Gross proceeds		$ 6,600,000
Thunder Sub [Member] | Climate Change Crisis Real Impact I Acquisition Corporation [Member]
Sale of stock percentage of ownership after transaction			26.80%

X

- Definition

Number of warrants or rights issued during the period.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

Post-transaction ownership percentage of the outstanding voting securities of the target business.

+ References

No definition available.

+ Details

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X

- Definition

Stock holders equity note conversion ratio.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

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

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X

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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X

- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

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Balance Type:	debit
Period Type:	duration

X

- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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