Debt Instrument, Covenant, Maximum Declaration Percentage

No definition available.

Name:	chpt_DebtInstrumentCovenantMaximumDeclarationPercentage
Namespace Prefix:	chpt_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Covenant, Maximum Secured Debt Threshold

+ References

No definition available.

+ Details

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Namespace Prefix:	chpt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Debt Instrument, Covenant, Trustee Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	chpt_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Ratio Of Control Price To Principal Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	chpt_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Ratio Of Repurchase Price To Principal Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	chpt_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility, Participation Fee

+ References

No definition available.

+ Details

Name:	chpt_LineOfCreditFacilityParticipationFee
Namespace Prefix:	chpt_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

+ Details

Name:	us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

+ Details

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

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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Data Type:	dtr-types:percentItemType
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.

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+ Details

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Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

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+ Details

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

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentAxis=chpt_ConvertibleSeniorNotesMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodOneMember
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Data Type:	na
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Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodTwoMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	chpt_DebtInstrumentInterestRateAxis=chpt_CashInterestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	chpt_DebtInstrumentInterestRateAxis=chpt_PaidInKindInterestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=chpt_A2027RevolvingCreditFacilityMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=chpt_EuroInterbankOfferedRateEURIBORMember
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Period Type:

- Details

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Period Type:

Debt - Narrative (Details)		1 Months Ended
Debt - Narrative (Details)	Jul. 27, 2023 USD ($)	Apr. 30, 2022 USD ($) day $ / shares	Jul. 31, 2023 USD ($)	Jan. 31, 2023 USD ($)
Convertible Senior Notes \| 2027 Convertible Notes (on an as-converted basis)
Debt Instrument [Line Items]
Debt instrument, face amount		$ 300,000,000
Debt		$ 294,000,000	$ 295,539,000	$ 294,936,000
Conversion ratio		0.0416119
Conversion price (usd per share) \| $ / shares		$ 24.03
Ratio of repurchase price to principal amount		100.00%
Ratio of control price to principal amount		125.00%
Interest rate, effective percentage			3.93%
Long-term debt, fair value			$ 227,000,000	$ 233,000,000
Convertible Senior Notes \| 2027 Convertible Notes (on an as-converted basis) \| Period One
Debt Instrument [Line Items]
Threshold trading days \| day		20
Threshold consecutive trading days \| day		30
Threshold percentage of stock price trigger		130.00%
Convertible Senior Notes \| 2027 Convertible Notes (on an as-converted basis) \| Period Two
Debt Instrument [Line Items]
Threshold trading days \| day		5
Threshold consecutive trading days \| day		10
Threshold percentage of stock price trigger		98.00%
Convertible Senior Notes \| 2027 Convertible Notes (on an as-converted basis) \| Cash Interest
Debt Instrument [Line Items]
Interest rate, stated percentage		3.50%
Convertible Senior Notes \| 2027 Convertible Notes (on an as-converted basis) \| Paid In Kind Interest
Debt Instrument [Line Items]
Interest rate, stated percentage		5.00%
Convertible Senior Notes \| Secured Debt
Debt Instrument [Line Items]
Maximum covenant threshold		$ 750,000,000
Trustee percentage (as a percent)		25.00%
Declare percentage		100.00%
2027 Revolving Credit Facility \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Interest rate, stated percentage	1.75%
Maximum borrowing capacity	$ 150,000,000
Commitment fee	0.40%
Borrowing capacity	$ 150,000,000
2027 Revolving Credit Facility \| Line of Credit \| Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%
Participation fee	2.25%
Borrowing outstanding			0
2027 Revolving Credit Facility \| Line of Credit \| Revolving Credit Facility \| Euro Interbank Offered Rate (EURIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%
2027 Revolving Credit Facility \| Line of Credit \| Revolving Credit Facility \| Daily Simple Risk-Free Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%
2027 Revolving Credit Facility \| Line of Credit \| Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 100,000,000
2027 Revolving Credit Facility \| Line of Credit \| Letter of Credit \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Borrowing outstanding			$ 0