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v3.26.1

Unaudited Condensed Consolidated Income Statements (Parenthetical) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Income Statement [Abstract] |  |  |  |
Depreciation and amortization expense | $ 4,200,000 | $ 2,100,000 | $ 7,700,000 | $ 4,000,000
Impairment of other assets | $ 0 | $ 0 | $ 500,000 | $ 0

X
- Definition Cost of goods and services sold depreciation amortization expense. + References No definition available. + Details
Name: | carg_CostOfGoodsAndServicesSoldDepreciationAmortizationExpense
Namespace Prefix: | carg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Impairment in cost of revenue. + References No definition available. + Details
Name: | carg_ImpairmentInCostOfRevenue
Namespace Prefix: | carg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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