XML 74 R61.htm IDEA: XBRL DOCUMENT
v3.23.2

DERIVATIVES AND HEDGING (Schedule of cash flow hedging instruments, location) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | $ 772 | $ 771 | $ 102 | $ 1,553
Amount of gain (loss) reclassified from AOCI into income | 802 | 771 | 88 | 1,579
Net interest income | 32,690 | 36,534 | 66,970 | 72,899
Cash Flow Hedging |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | 2,059 | 3,588 | 511 | 7,223
Amount of gain (loss) reclassified from AOCI into income | (143) | (2) | 66 | (120)
Cash Flow Hedging | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | (864) | (904) | (682) | (3,915)
Cash Flow Hedging | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative |  | 2,233 | (1) | 5,721
Cash Flow Hedging | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | 1,517 |  | 722 |
Cash Flow Hedging | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | 1,406 | 2,259 | 472 | 5,417
Cash Flow Hedging | Interest and fees on loans |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | (862) | 237 | (1,579) | 619
Cash Flow Hedging | Interest and fees on loans | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Net interest income | 48,645 | 33,121 | 93,977 | 65,156
Cash Flow Hedging | Interest and fees on loans | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | (862) | 237 | (1,579) | 619
Cash Flow Hedging | Interest on deposits |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income |  | 32 | 306 | (117)
Cash Flow Hedging | Interest on deposits | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Net interest income | 19,245 | 2,510 | 35,077 | 4,343
Cash Flow Hedging | Interest on deposits | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 0 | 32 | 306 | (117)
Cash Flow Hedging | Interest on borrowings |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 537 |  | 1,024 |
Cash Flow Hedging | Interest on borrowings | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Net interest income | 3,587 |  | 5,672 |
Cash Flow Hedging | Interest on borrowings | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 537 |  | 1,024 |
Cash Flow Hedging | Interest on subordinated debentures |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 182 | (271) | 315 | (622)
Cash Flow Hedging | Interest on subordinated debentures | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Net interest income | 533 | 532 | 1,061 | 1,061
Cash Flow Hedging | Interest on subordinated debentures | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 182 | (271) | 315 | (622)
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | 2,059 | 3,588 | 511 | 7,223
Amount of gain (loss) reclassified from AOCI into income | (143) | (2) | 66 | (120)
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | (864) | (904) | (682) | (3,915)
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative |  | 2,233 | (1) | 5,721
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | 1,517 |  | 722 |
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | 1,406 | 2,259 | 472 | 5,417
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest and fees on loans |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | (862) | 237 | (1,579) | 619
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest and fees on loans | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | (862) | 237 | (1,579) | 619
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest on deposits |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income |  | 32 | 306 | (117)
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest on deposits | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 0 | 32 | 306 | (117)
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest on borrowings |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 537 |  | 1,024 |
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest on borrowings | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 537 |  | 1,024 |
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest on subordinated debentures |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 182 | (271) | 315 | (622)
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Included Component | Interest on subordinated debentures | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 182 | (271) | 315 | (622)
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | 0 | 0 | 0 | 0
Amount of gain (loss) reclassified from AOCI into income | 0 | 0 | 0 | 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | 0 | 0 | 0 | 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative |  | 0 | 0 | 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | 0 |  | 0 |
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) recognized in OCI on derivative | 0 |  | 0 | 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest and fees on loans |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 0 | 0 | 0 | 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest and fees on loans | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 0 | 0 | 0 | 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest on deposits |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income |  | 0 | 0 | 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest on deposits | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 0 | 0 | 0 | 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest on borrowings |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 0 |  | 0 |
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest on borrowings | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 0 |  | 0 |
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest on subordinated debentures |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 0 |  | 0 | 0
Cash Flow Hedging | AOCI, Derivative Qualifying as Hedge, Excluded Component | Interest on subordinated debentures | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Amount of gain (loss) reclassified from AOCI into income | 0 | 0 | 0 | 0
Fair Value Hedging | Interest and fees on loans | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Hedged items | (7,655) | 0 | (6,103) | 0
Derivatives designated as hedging instruments | 8,859 | 0 | 7,786 | 0
Fair Value Hedging | Interest on deposits | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Hedged items | 0 | 0 | 0 | 0
Derivatives designated as hedging instruments | 0 | 0 | 0 | 0
Fair Value Hedging | Interest on borrowings | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Hedged items | 0 |  | 0 |
Derivatives designated as hedging instruments | 0 |  | 0 |
Fair Value Hedging | Interest on subordinated debentures | Interest rate contracts |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Hedged items | 0 | 0 | 0 | 0
Derivatives designated as hedging instruments | $ 0 | $ 0 | $ 0 | $ 0

X
- Definition Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 815 -SubTopic 25 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480238/815-25-50-1 + Details
Name: | us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 815 -SubTopic 25 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480238/815-25-50-1 + Details
Name: | us-gaap_ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net amount of operating interest income (expense). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.10) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 + Details
Name: | us-gaap_InterestIncomeExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-12 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-12 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=cac_InterestRateContractOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=cac_InterestRateContractTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=cac_InterestRateContractThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=cac_InterestRateContractFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=cac_InterestIncomeLoansAndFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis=us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=cac_InterestExpenseDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=cac_InterestExpenseBorrowingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=cac_InterestExpenseSubordinatedDebenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=cac_AOCIDerivativeQualifyingAsHedgeIncludedComponentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=cac_AOCIDerivativeQualifyingAsHedgeExcludedComponentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_FairValueHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |