XML 85 R70.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Loans and Allowance for Credit Losses on Loans (Activity in Allowance for Credit Losses on Loans by Portfolio Segment) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | $ 36,935 | $ 36,922
Loans charged-off | (1,883) | (1,727)
Recoveries | 623 | 566
(Credit) provision for loan losses | 53 | 1,174
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance | 35,728 | 36,935
Commercial real estate, non owner-occupied |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 16,581 | 17,296
Loans charged-off | 0 | 0
Recoveries | 10 | 19
(Credit) provision for loan losses | (1,694) | (734)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance | 14,897 | 16,581
Commercial real estate, owner-occupied |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 2,290 | 2,362
Loans charged-off | 0 | (58)
Recoveries | 0 | 0
(Credit) provision for loan losses | 191 | (14)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance | 2,481 | 2,290
Commercial |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 4,869 | 5,446
Loans charged-off | (1,784) | (1,560)
Recoveries | 455 | 471
(Credit) provision for loan losses | 2,316 | 512
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance | 5,856 | 4,869
Residential Portfolio Segment [Member] |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 10,254 | 9,089
Loans charged-off | 0 | (18)
Recoveries | 26 | 44
(Credit) provision for loan losses | (301) | 1,139
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance | 9,979 | 10,254
Home equity |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 2,217 | 2,225
Loans charged-off | (1) | 0
Recoveries | 98 | 1
(Credit) provision for loan losses | 83 | (9)
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance | 2,397 | 2,217
Consumer |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Beginning Balance | 724 | 504
Loans charged-off | (98) | (91)
Recoveries | 34 | 31
(Credit) provision for loan losses | (542) | 280
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Ending Balance | $ 118 | $ 724

X
- Definition Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Loans Only + References No definition available. + Details
Name: | cac_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversalLoansOnly
Namespace Prefix: | cac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. 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 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. 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 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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: |