Investments (Schedule Of Trust Preferred Securities) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 143,895	$ 158,335
Fair Value	143,875	159,473
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	5,979	5,958
Fair Value	5,461	$ 5,289
Unrealized Gain (Loss)	$ (518)
Lowest Credit Rating Assigned: Standard & Poor's, BB Rating [Member] \| Trust Preferred Securities: Huntington Cap Trust [Member]
Schedule of Available-for-sale Securities [Line Items]
Maturity	Feb. 01, 2027
Amortized cost	$ 946
Fair Value	830
Unrealized Gain (Loss)	$ (116)
Lowest Credit Rating Assigned: Standard & Poor's, BB Rating [Member] \| Trust Preferred Securities: Huntington Cap Trust II [Member]
Schedule of Available-for-sale Securities [Line Items]
Maturity	Jun. 15, 2028
Amortized cost	$ 901
Fair Value	822
Unrealized Gain (Loss)	$ (79)
Lowest Credit Rating Assigned: Standard & Poor's, BBB- Rating [Member] \| Trust Preferred Securities: Chase Cap VI JPM [Member]
Schedule of Available-for-sale Securities [Line Items]
Maturity	Aug. 01, 2028
Amortized cost	$ 966
Fair Value	888
Unrealized Gain (Loss)	$ (78)
Lowest Credit Rating Assigned: Standard & Poor's, BB+ Rating [Member] \| Trust Preferred Securities: BankAmerica Cap III [Member]
Schedule of Available-for-sale Securities [Line Items]
Maturity	Jan. 15, 2027
Amortized cost	$ 967
Fair Value	876
Unrealized Gain (Loss)	$ (91)
Lowest Credit Rating Assigned: Standard & Poor's, BB+ Rating [Member] \| Trust Preferred Securities: Fleet Cap Tr V [Member]
Schedule of Available-for-sale Securities [Line Items]
Maturity	Dec. 18, 2028
Amortized cost	$ 977
Fair Value	881
Unrealized Gain (Loss)	$ (96)
Lowest Credit Rating Assigned: Standard & Poor's, BBB+ Rating [Member] \| Trust Preferred Securities: Corestates Captl Tr II [Member]
Schedule of Available-for-sale Securities [Line Items]
Maturity	Feb. 15, 2027
Amortized cost	$ 943
Fair Value	896
Unrealized Gain (Loss)	$ (47)
Lowest Credit Rating Assigned: Standard & Poor's, BBB Rating [Member] \| Trust Preferred Securities: Wachovia Cap Trust II [Member]
Schedule of Available-for-sale Securities [Line Items]
Maturity	Jan. 15, 2027
Amortized cost	$ 279
Fair Value	268
Unrealized Gain (Loss)	$ (11)

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26610-111562

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.2)
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