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v3.25.3

Prepaid Expenses and Other Current Assets - Additional Information (Detail) $ in Millions | 9 Months Ended
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Sep. 30, 2025 USD ($)
Prepaid Expense and Other Assets, Current [Abstract] |
Increase in partner receivables | $ 6.5
Decrease in rebate receivables | $ 4.9

X
- Definition Increase (decrease) in partner receivables. + References No definition available. + Details
Name: | dave_IncreaseDecreaseInPartnerReceivables
Namespace Prefix: | dave_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase (decrease) in rebate receivables. + References No definition available. + Details
Name: | dave_IncreaseDecreaseInRebateReceivables
Namespace Prefix: | dave_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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