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Commitments and Contingencies - Schedule of Future Minimum Sublease Income Payments (Details) $ in Thousands | Dec. 31, 2023 USD ($)
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Commitments and Contingencies Disclosure [Abstract] |
2024 | $ 2,318
2025 | 1,418
Total | $ 3,736

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- Definition Future minimum sublease income payments due in next twelve months. + References No definition available. + Details
Name: | carg_FutureMinimumSubleaseIncomePaymentsDueInNextTwelveMonths
Namespace Prefix: | carg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Future minimum sublease income payments due year two. + References No definition available. + Details
Name: | carg_FutureMinimumSubleaseIncomePaymentsDueYearTwo
Namespace Prefix: | carg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Sublease income payments due. + References No definition available. + Details
Name: | carg_SubleaseIncomePaymentsDue
Namespace Prefix: | carg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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