Investments (Schedule Of Trust Preferred Securities) (Details) (USD $) In Thousands, unless otherwise specified			9 Months Ended
Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Trust Preferred Securities: Huntington Cap Trust [Member] Lowest Credit Rating Assigned: Standard & Poor's, BB Rating [Member] item	Sep. 30, 2013 Trust Preferred Securities: Huntington Cap Trust II [Member] Lowest Credit Rating Assigned: Standard & Poor's, BB Rating [Member] item	Sep. 30, 2013 Trust Preferred Securities: BankAmerica Cap III [Member] Lowest Credit Rating Assigned: Moody's, Ba2 Rating [Member] item	Sep. 30, 2013 Trust Preferred Securities: Wachovia Cap Trust II [Member] Lowest Credit Rating Assigned: Standard & Poor's, BBB+ Rating [Member] item	Sep. 30, 2013 Trust Preferred Securities: Corestates Captl Tr II [Member] Lowest Credit Rating Assigned: Standard & Poor's, BBB+ Rating [Member] item	Sep. 30, 2013 Trust Preferred Securities: Chase Cap VI JPM [Member] Lowest Credit Rating Assigned: Standard & Poor's, BBB Rating [Member] item	Sep. 30, 2013 Trust Preferred Securities: Fleet Cap Tr V [Member] Lowest Credit Rating Assigned: Moody's, Ba2 Rating [Member] item	Sep. 30, 2013 Trust Preferred Securities [Member]	Dec. 31, 2012 Trust Preferred Securities [Member]
Schedule of Investments [Line Items]
Single Issuer or Pooled			Single	Single	Single	Single	Single	Single	Single
Class			Preferred Stock	Preferred Stock	Preferred Stock	Preferred Stock	Preferred Stock	Preferred Stock	Preferred Stock
Amortized Cost	$ 163,535	$ 130,785	$ 935	$ 884	$ 960	$ 275	$ 931	$ 960	$ 973	$ 5,918	$ 5,905
Available-for-sale Securities	162,761	133,328	816	786	802	249	846	829	801	5,129	4,830
Gross Unrealized Gain (Loss)			$ (119)	$ (98)	$ (158)	$ (26)	$ (85)	$ (131)	$ (172)	$ (789)
Lowest Credit Rating Assigned			BB	BB	Ba2	BBB+	BBB+	BBB	Ba2
Number of Banks Currently Performing			1	1	1	1	1	1	1
Deferrals and Defaults as % of Original Collateral			0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
Expected Deferral/Defaults as a Percentage of Remaining Performing Collateral			0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

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

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