Investments (Schedule Of Trust Preferred Securities) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 131,421	$ 143,895
Fair Value	132,322	143,875
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,994	5,979
Fair Value	5,811	$ 5,461
Gross Unrealized Gain (Loss)	$ (183)
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
Single Issuer or Pooled	Single
Class	Preferred Stock
Amortized Cost	$ 949
Fair Value	903
Gross Unrealized Gain (Loss)	$ (46)
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
Single Issuer or Pooled	Single
Class	Preferred Stock
Amortized Cost	$ 905
Fair Value	852
Gross Unrealized Gain (Loss)	$ (53)
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
Single Issuer or Pooled	Single
Class	Preferred Stock
Amortized Cost	$ 967
Fair Value	934
Gross Unrealized Gain (Loss)	$ (33)
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
Single Issuer or Pooled	Single
Class	Preferred Stock
Amortized Cost	$ 969
Fair Value	945
Gross Unrealized Gain (Loss)	$ (24)
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
Single Issuer or Pooled	Single
Class	Preferred Stock
Amortized Cost	$ 978
Fair Value	947
Gross Unrealized Gain (Loss)	$ (31)
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
Single Issuer or Pooled	Single
Class	Preferred Stock
Amortized Cost	$ 280
Fair Value	282
Gross Unrealized Gain (Loss)	$ 2
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
Single Issuer or Pooled	Single
Class	Preferred Stock
Amortized Cost	$ 946
Fair Value	948
Gross Unrealized Gain (Loss)	$ 2