XML 50 R34.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Goodwill and Core Deposit Intangible Assets Goodwill and Core Deposit Intangible Assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Other Intangible Assets [Abstract] |
Schedule of Finite-Lived Intangible Assets | The gross carrying amount and accumulated amortization of core deposit intangible assets were as follows at the periods indicated:
|  | December 31,
|  | 2021 |  | 2020
(In thousands) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Core deposit intangible assets |  | $ | 6,451 |  |  | $ | (4,263) |  |  | $ | 2,188 |  |  | $ | 6,451 |  |  | $ | (3,608) |  |  | $ | 2,843 |
Schedule of Expected Amortization Schedule | The following table reflects the amortization expense for core deposit intangible assets over the period of estimated economic benefit:
(In thousands) |  | Core Deposit Intangible
2022 |  | $ | 625 |
2023 |  | 592 |
2024 |  | 556 |
2025 |  | 415 |
2026 |  | — |
Thereafter |  | — |
Total |  | $ | 2,188 |

X
- Definition Other Intangible Assets [Abstract] + References No definition available. + Details
Name: | cac_OtherIntangibleAssetsAbstract
Namespace Prefix: | cac_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration