XML 64 R54.htm IDEA: XBRL DOCUMENT v3.22.2.2

LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS (Troubled Debt Restructuring Loans) (Details) $ in Thousands	Sep. 30, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	23	25
Recorded Investment	$ 2,672	$ 2,786
Specific Reserve	$ 376	$ 397
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	18	19
Recorded Investment	$ 2,254	$ 2,341
Specific Reserve	$ 321	$ 348
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	1	2
Recorded Investment	$ 58	$ 74
Specific Reserve	$ 0	$ 0
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	3	3
Recorded Investment	$ 246	$ 253
Specific Reserve	$ 7	$ 6
Commercial real estate - owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	1	1
Recorded Investment	$ 114	$ 118
Specific Reserve	$ 48	$ 43

X

- Definition

Allowance for Credit Losses, Related to Troubled Debt Restructured Loans

+ References

No definition available.

+ Details

Name:	cac_AllowanceForCreditLossesRelatedToTroubledDebtRestructuredLoans
Namespace Prefix:	cac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Financing Receivable Modifications Number Of Contracts Outstanding

+ References

No definition available.

+ Details

Name:	cac_FinancingReceivableModificationsNumberOfContractsOutstanding
Namespace Prefix:	cac_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

+ Details

Name:	us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=cac_CommercialRealEstatePortfolioSegmentOwnerOccupiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: