XML 67 R56.htm IDEA: XBRL DOCUMENT
v3.10.0.1

FAIR VALUE MEASUREMENT AND DISCLOSURE (Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Financial assets: |  |
Available-for-sale Securities | $ 799,000 | $ 789,899
Obligations of states and political subdivisions |  |
Financial assets: |  |
Available-for-sale Securities | 4,832 | 7,335
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial assets: |  |
Available-for-sale Securities | 495,268 | 503,302
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial assets: |  |
Available-for-sale Securities | 293,354 | 272,799
Equity investments |  |
Financial assets: |  |
Available-for-sale Securities |  | 806
Fair Value, Measurements, Recurring |  |
Financial assets: |  |
Loans held for sale | 12,656 | 8,103
Customer loan swaps | 13,250 |
Financial liabilities: |  |
Junior subordinated debt interest rate swaps |  | 7,571
Customer loan swaps | 20 |
Fair Value, Measurements, Recurring | Obligations of states and political subdivisions |  |
Financial assets: |  |
Available-for-sale Securities | 4,832 | 7,335
Fair Value, Measurements, Recurring | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial assets: |  |
Available-for-sale Securities | 495,268 | 503,302
Fair Value, Measurements, Recurring | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial assets: |  |
Available-for-sale Securities | 293,354 | 272,799
Fair Value, Measurements, Recurring | Corporate Bond Securities [Member] |  |
Financial assets: |  |
Available-for-sale Securities | 5,546 | 5,657
Fair Value, Measurements, Recurring | Equity investments |  |
Financial assets: |  |
Available-for-sale Securities | 772 | 806
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring |  |
Financial assets: |  |
Loans held for sale | 0 | 0
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring | Corporate Bond Securities [Member] |  |
Financial assets: |  |
Available-for-sale Securities | 0 | 0
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring | Equity investments |  |
Financial assets: |  |
Available-for-sale Securities | 0 | 0
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring |  |
Financial assets: |  |
Loans held for sale | 12,656 | 8,103
Customer loan swaps | 13,250 |
Financial liabilities: |  |
Junior subordinated debt interest rate swaps |  | 7,571
Customer loan swaps | 20 |
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Obligations of states and political subdivisions |  |
Financial assets: |  |
Available-for-sale Securities | 4,832 | 7,335
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial assets: |  |
Available-for-sale Securities | 495,268 | 503,302
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises |  |
Financial assets: |  |
Available-for-sale Securities | 293,354 | 272,799
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Corporate Bond Securities [Member] |  |
Financial assets: |  |
Available-for-sale Securities | 5,546 | 5,657
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Equity investments |  |
Financial assets: |  |
Available-for-sale Securities | 772 | 806
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring |  |
Financial assets: |  |
Loans held for sale | 0 | 0
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring | Corporate Bond Securities [Member] |  |
Financial assets: |  |
Available-for-sale Securities | 0 | 0
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring | Equity investments |  |
Financial assets: |  |
Available-for-sale Securities | 0 | 0
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring |  |
Financial assets: |  |
Customer loan swaps | 331 | 307
Financial liabilities: |  |
Customer loan swaps | 54 | 22
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring |  |
Financial assets: |  |
Customer loan swaps | 331 | 307
Financial liabilities: |  |
Customer loan swaps | 54 | 22
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring |  |
Financial liabilities: |  |
Customer loan swaps | 0 | 0
Forward Contracts [Member] | Fair Value, Measurements, Recurring |  |
Financial assets: |  |
Customer loan swaps | 212 | 158
Financial liabilities: |  |
Customer loan swaps |  | 16
Forward Contracts [Member] | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring |  |
Financial assets: |  |
Customer loan swaps | 212 | 158
Financial liabilities: |  |
Customer loan swaps |  | 16
Interest rate swaps | Fair Value, Measurements, Recurring |  |
Financial assets: |  |
Customer loan swaps |  | 5,036
Financial liabilities: |  |
Junior subordinated debt interest rate swaps | 5,151 |
Customer loan swaps |  | 5,036
Interest rate swaps | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring |  |
Financial assets: |  |
Customer loan swaps |  | 5,036
Financial liabilities: |  |
Junior subordinated debt interest rate swaps | 5,151 |
Customer loan swaps |  | 5,036
Forward-Starting Interest Rate Swap | Fair Value, Measurements, Recurring |  |
Financial liabilities: |  |
Junior subordinated debt interest rate swaps | 89 | 21
Forward-Starting Interest Rate Swap | Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring |  |
Financial liabilities: |  |
Junior subordinated debt interest rate swaps | 0 | 0
Forward-Starting Interest Rate Swap | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring |  |
Financial liabilities: |  |
Junior subordinated debt interest rate swaps | 89 | $ 21
Forward-Starting Interest Rate Swap | Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring |  |
Financial liabilities: |  |
Junior subordinated debt interest rate swaps | 0 |
Customer Loan Swaps | Fair Value, Measurements, Recurring |  |
Financial liabilities: |  |
Customer loan swaps | 13,250 |
Customer Loan Swaps | Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring |  |
Financial liabilities: |  |
Customer loan swaps | 0 |
Customer Loan Swaps | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring |  |
Financial liabilities: |  |
Customer loan swaps | 13,250 |
Customer Loan Swaps | Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring |  |
Financial liabilities: |  |
Customer loan swaps | $ 0 |

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

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562 + Details
Name: | us-gaap_AvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
Name: | us-gaap_DerivativeLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 + Details
Name: | us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value as of the balance sheet date of all derivative liabilities not designated as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 + Details
Name: | us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables. + References No definition available. + Details
Name: | us-gaap_LoansHeldForSaleFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=cac_CollateralizedMortgageObligationsIssuedByUnitedStatesGovernmentSponsoredEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CorporateBondSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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