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v3.23.3

Stock Warrants - Warrant Activity (Details) - Legacy Warrants | 9 Months Ended
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Oct. 31, 2023 shares
Warrants Or Rights Outstanding Roll Forward [Roll Forward] |
Outstanding at beginning of period (in shares) | 34,499,436
Warrants exercised (in shares) | 0
Outstanding at end of period (in shares) | 34,499,436

X
- Definition Warrants Exercised + References No definition available. + Details
Name: | chpt_WarrantsExercised
Namespace Prefix: | chpt_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants Or Rights Outstanding Roll Forward + References No definition available. + Details
Name: | chpt_WarrantsOrRightsOutstandingRollForwardRollForward
Namespace Prefix: | chpt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=chpt_LegacyWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |