Investments (Aggregate Carrying And Approximate Market Values Of Available-For-Sale Securities) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	$ 351,825	$ 355,771
Securities available-for-sale, Gross Unrealized Gains	5,756	7,091
Securities available-for-sale, Gross Unrealized Losses	7,641	10,202
Investment securities available for sale, at fair value	349,940	352,660
U.S Treasuries and U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	2,175	2,317
Securities available-for-sale, Gross Unrealized Gains	38	48
Securities available-for-sale, Gross Unrealized Losses	0	0
Investment securities available for sale, at fair value	2,213	2,365
Obligations Of States And Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	39,061	41,027
Securities available-for-sale, Gross Unrealized Gains	787	627
Securities available-for-sale, Gross Unrealized Losses	55	106
Investment securities available for sale, at fair value	39,793	41,548
U.S. Government Agencies Mortgage-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	283,439	282,653
Securities available-for-sale, Gross Unrealized Gains	2,936	2,765
Securities available-for-sale, Gross Unrealized Losses	4,872	7,310
Investment securities available for sale, at fair value	281,503	278,108
Private Label [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	2,101	2,184
Securities available-for-sale, Gross Unrealized Gains	17	16
Securities available-for-sale, Gross Unrealized Losses	0	3
Investment securities available for sale, at fair value	2,118	2,197
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	10,444	12,943
Securities available-for-sale, Gross Unrealized Gains	10	2,113
Securities available-for-sale, Gross Unrealized Losses	2,115	1,900
Investment securities available for sale, at fair value	8,339	13,156
Corporate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	9,792	9,788
Securities available-for-sale, Gross Unrealized Gains	236	183
Securities available-for-sale, Gross Unrealized Losses	567	843
Investment securities available for sale, at fair value	9,461	9,128
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	347,012	350,912
Securities available-for-sale, Gross Unrealized Gains	4,024	5,752
Securities available-for-sale, Gross Unrealized Losses	7,609	10,162
Investment securities available for sale, at fair value	343,427	346,502
Marketable Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	3,288	3,334
Securities available-for-sale, Gross Unrealized Gains	1,732	1,339
Securities available-for-sale, Gross Unrealized Losses	0	0
Investment securities available for sale, at fair value	5,020	4,673
Investment Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, Amortized Cost	1,525	1,525
Securities available-for-sale, Gross Unrealized Gains	0	0
Securities available-for-sale, Gross Unrealized Losses	32	40
Investment securities available for sale, at fair value	$ 1,493	$ 1,485