Class Of Warrant Or Right, Exercised

No definition available.

Name:	chpt_ClassOfWarrantOrRightExercised
Namespace Prefix:	chpt_
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Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

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

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

+ Details

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=chpt_LegacyCommonAndPreferredStockWarrantsClassifiedAsEquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=chpt_CommonStockWarrantExpiresIn2030Member
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- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=chpt_CommonStockWarrantExpiresIn2028Through2029Member
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- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=chpt_A2025WarrantsMember
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Common Stock Warrants (Details) - $ / shares	3 Months Ended		6 Months Ended
Common Stock Warrants (Details) - $ / shares	Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025	Nov. 14, 2025
Class of Warrant or Right [Line Items]
Stock price of warrants (USD per share)					$ 25.00
Purchase of warrants (in shares)					1,671,000
Legacy Common And Preferred Stock Warrants Classified As Equity
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)	1,724,961		1,724,961
Warrants exercised (in shares)	0	0	0	0
Common Stock Warrant, Expires in 2030
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)	1,046,106		1,046,106
Stock price of warrants (USD per share)	$ 120.60		$ 120.60
Common Stock Warrant, Expires in 2028 Through 2029
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)	678,855		678,855
Stock price of warrants (USD per share)	$ 180.80		$ 180.80
2025 Warrants
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)	1,671,000		1,671,000
Warrants exercised (in shares)	0		0
Stock price of warrants (USD per share)					$ 25.00
Purchase of warrants (in shares)					1,671,000