Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Mar. 04, 2015	Jun. 30, 2014
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	CAC
Entity Registrant Name	CAMDEN NATIONAL CORP
Entity Central Index Key	0000750686
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		7,429,460
Entity Public Float			$ 239,506,722
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No