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v3.25.1

Common Stock Warrants - Narrative (Details) - shares | 3 Months Ended |
--- | --- | ---
Apr. 30, 2025 | Apr. 30, 2024 | Jan. 31, 2025
Equity [Abstract] |  |  |
Warrants outstanding (in shares) | 34,499,436 |  | 34,499,436
Warrants exercised (in shares) | 0 | 0 |

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 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
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration