XML 85 R70.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Loans and Allowance for Credit Losses on Loans (Financing Receivable, Nonaccrual) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Nonaccrual [Line Items] |  |
Non-Accrual Loans With an Allowance | $ 5,448 | $ 2,150
Non-Accrual Loans Without an Allowance | 0 | 841
Total Non-Accrual Loans | 5,448 | 2,991
Non-Accrual Loans | 5,448 | 2,991
Total Collateral -Dependent Non-Accrual Loans |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Total Non-Accrual Loans | 5,165 | 387
Non-Accrual Loans | 5,165 | 387
Real Estate |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Total Non-Accrual Loans | 5,165 | 387
Non-Accrual Loans | 5,165 | 387
Commercial real estate, non owner-occupied |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Non-Accrual Loans With an Allowance | 261 | 0
Non-Accrual Loans Without an Allowance | 0 | 11
Total Non-Accrual Loans | 261 | 11
Non-Accrual Loans | 261 | 11
Commercial real estate, owner-occupied |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Non-Accrual Loans With an Allowance | 125 | 0
Non-Accrual Loans Without an Allowance | 0 | 46
Total Non-Accrual Loans | 125 | 46
Non-Accrual Loans | 125 | 46
Commercial |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Non-Accrual Loans With an Allowance | 1,725 | 415
Non-Accrual Loans Without an Allowance | 0 | 300
Total Non-Accrual Loans | 1,725 | 715
Non-Accrual Loans | 1,725 | 715
Residential Portfolio Segment [Member] |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Non-Accrual Loans With an Allowance | 2,541 | 1,314
Non-Accrual Loans Without an Allowance | 0 | 419
Total Non-Accrual Loans | 2,541 | 1,733
Non-Accrual Loans | 2,541 | 1,733
Residential Portfolio Segment [Member] | Total Collateral -Dependent Non-Accrual Loans |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Total Non-Accrual Loans | 671 | 0
Non-Accrual Loans | 671 | 0
Residential Portfolio Segment [Member] | Real Estate |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Total Non-Accrual Loans | 671 | 0
Non-Accrual Loans | 671 | 0
Home equity |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Non-Accrual Loans With an Allowance | 759 | 421
Non-Accrual Loans Without an Allowance | 0 | 65
Total Non-Accrual Loans | 759 | 486
Non-Accrual Loans | 759 | 486
Home equity | Total Collateral -Dependent Non-Accrual Loans |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Total Non-Accrual Loans | 0 | 387
Non-Accrual Loans | 0 | 387
Home equity | Real Estate |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Total Non-Accrual Loans | 0 | 387
Non-Accrual Loans | 0 | 387
Consumer |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Non-Accrual Loans With an Allowance | 37 | 0
Non-Accrual Loans Without an Allowance | 0 | 0
Total Non-Accrual Loans | 37 | 0
Non-Accrual Loans | $ 37 | $ 0

X
- Definition Financing Receivable, Nonaccrual, With Allowance + References No definition available. + Details
Name: | cac_FinancingReceivableNonaccrualWithAllowance
Namespace Prefix: | cac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-16 + Details
Name: | us-gaap_FinancingReceivableNonaccrualNoAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-16 + Details
Name: | us-gaap_FinancingReceivableNonaccrualStatusLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) -Publisher SEC Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_CollateralAxis=us-gaap_CollateralPledgedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=us-gaap_RealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cac_CommercialRealEstatePortfolioSegmentNonOwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cac_CommercialRealEstatePortfolioSegmentOwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cac_HomeEquityPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |