Income (Loss) from Subsidiaries, Net of Purchase Accounting Adjustments, before Tax

No definition available.

Name:	cac_IncomeLossfromSubsidiariesNetofPurchaseAccountingAdjustmentsbeforeTax
Namespace Prefix:	cac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3521-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3044-108585

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586

Parent Company Financial Statements (Statements of Cash Flows) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Activities
Net income	$ 15,238	$ 14,488	$ 13,204	$ 14,273	$ 13,977	$ 14,057	$ 12,217	$ 12,820	$ 57,203	$ 53,071	$ 28,476
(Increase) decrease in other assets									(22,405)	(6,679)	11,190
Net cash provided by operating activities									32,871	64,334	58,334
Investing Activities
Net cash used by investing activities									(55,835)	(276,777)	(212,131)
Financing Activities
Common stock repurchases									(20,795)	(27)	0
Cash dividends paid on common stock									(18,572)	(17,170)	(14,323)
Net cash provided by financing activities									31,601	176,471	169,061
Net increase (decrease) in cash, cash equivalents and restricted cash									8,637	(35,972)	15,264
Cash, cash equivalents and restricted cash at beginning of year				66,999				102,971	66,999	102,971	87,707
Cash, cash equivalents and restricted cash at end of year	75,636				66,999				75,636	66,999	102,971
Parent Company [Member]
Operating Activities
Net income									57,203	53,071	28,476
Equity in undistributed income of subsidiaries									(22,579)	(27,971)	(17,405)
(Increase) decrease in other assets									(2,935)	(1,772)	(1,962)
(Decrease) increase in due to subsidiaries									(109)	82	(20)
Increase (decrease) in other liabilities									4,298	(4,763)	3,721
Net cash provided by operating activities									35,878	18,647	12,810
Investing Activities
Proceeds from Sale of Available-for-sale Securities, Equity									0	214	110
Net cash used by investing activities									0	214	110
Financing Activities
Net proceeds from issuance of common stock									1,683	1,338	863
Common stock repurchases									(20,795)	(27)	0
Cash dividends paid on common stock									(18,572)	(17,170)	(14,323)
Net cash provided by financing activities									(37,684)	(15,859)	(13,460)
Net increase (decrease) in cash, cash equivalents and restricted cash									(1,806)	3,002	(540)
Cash, cash equivalents and restricted cash at beginning of year				$ 32,367				$ 29,365	32,367	29,365	29,905
Cash, cash equivalents and restricted cash at end of year	$ 30,561				$ 32,367				$ 30,561	$ 32,367	$ 29,365