| Component: (Network and Table) | |
|---|---|
| Network | 2417406 - Disclosure - Employee Benefit Plans (Schedule of Estimated Future Benefit Payments) (Details) (http://www.camdennational.com/role/EmployeeBenefitPlansScheduleOfEstimatedFutureBenefitPaymentsDetails) |
| Table | Schedule Of Defined Benefit Plans Disclosures [Table] |
| Reporting Entity [Axis] | 0000750686 (http://www.sec.gov/CIK) |
| Defined Benefit Plan Disclosure [Line Items] | Period [Axis] | |
|---|---|---|
2016-12-31 | ||
| Defined Benefit Plans Disclosures Defined Benefit Plans [Axis] | ||
| Supplemental Executive Retirement Plan [Member] | Other Postretirement Benefit Plan [Member] | |
Expected future benefit payments under the plans: | ||
2017 | ||
2018 | ||
2019 | ||
2020 | ||
2021 | ||
2022- 2026 | ||