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Leases Leases (Additional Information) (Details) | Dec. 31, 2024 employee
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Leases [Abstract] |
Lessor, Operating Lease, Number of Landlords | 2

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- Definition Lessor, Operating Lease, Number of Landlords + References No definition available. + Details
Name: | cac_LessorOperatingLeaseNumberOfLandlords
Namespace Prefix: | cac_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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