XML 12 R48.htm IDEA: XBRL DOCUMENT
v3.19.3

LOANS AND ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructuring Loans) (Details) $ in Thousands | Sep. 30, 2019 USD ($) loan | Dec. 31, 2018 USD ($) loan
--- | --- | ---
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 26 | 31
Recorded Investment | $ 3,863 | $ 4,406
Specific Reserve | $ 435 | $ 628
Residential Real Estate |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 21 | 25
Recorded Investment | $ 3,095 | $ 3,614
Specific Reserve | $ 337 | $ 443
Commercial Real Estate |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 2 | 2
Recorded Investment | $ 341 | $ 347
Specific Reserve | $ 29 | $ 23
Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 2 | 2
Recorded Investment | $ 128 | $ 141
Specific Reserve | $ 0 | $ 0
Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 1 | 2
Recorded Investment | $ 299 | $ 304
Specific Reserve | $ 69 | $ 162

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 The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82895541&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_CommercialRealEstatePortfolioSegmentMember
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: |