Investment Securities (Age Of Unrealized Losses And Fair Value Of Related Securities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	$ 96,625	$ 97,569
Less than Twelve Months, Unrealized Losses	(3,103)	(7,563)
More than Twelve Months, Fair Value	97,591	79,948
More than Twelve Months, Unrealized Losses	(30,877)	(42,182)
Total, Fair Value	194,216	177,517
Total, Unrealized Losses	(33,980)	(49,745)
U.S. Government Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	24,060	7,980
Less than Twelve Months, Unrealized Losses	(79)	(243)
More than Twelve Months, Fair Value	7,839
More than Twelve Months, Unrealized Losses	(12)
Total, Fair Value	31,899	7,980
Total, Unrealized Losses	(91)	(243)
Obligations Of States And Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	11,113	141
Less than Twelve Months, Unrealized Losses	(58)	(1)
Total, Fair Value	11,113	141
Total, Unrealized Losses	(58)	(1)
Residential Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	54,778	41,673
Less than Twelve Months, Unrealized Losses	(1,879)	(1,655)
More than Twelve Months, Fair Value	21,711	22,639
More than Twelve Months, Unrealized Losses	(3,201)	(3,789)
Total, Fair Value	76,489	64,312
Total, Unrealized Losses	(5,080)	(5,444)
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	3,298	23,962
Less than Twelve Months, Unrealized Losses	(356)	(1,061)
More than Twelve Months, Fair Value	48,930	38,191
More than Twelve Months, Unrealized Losses	(21,340)	(32,115)
Total, Fair Value	52,228	62,153
Total, Unrealized Losses	(21,696)	(33,176)
Corporate And Other Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	3,091	3,243
Less than Twelve Months, Unrealized Losses	(330)	(173)
More than Twelve Months, Fair Value	6,125	6,567
More than Twelve Months, Unrealized Losses	(3,851)	(3,409)
Total, Fair Value	9,216	9,810
Total, Unrealized Losses	(4,181)	(3,582)
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than Twelve Months, Fair Value	285	20,570
Less than Twelve Months, Unrealized Losses	(401)	(4,430)
More than Twelve Months, Fair Value	12,986	12,551
More than Twelve Months, Unrealized Losses	(2,473)	(2,869)
Total, Fair Value	13,271	33,121
Total, Unrealized Losses	$ (2,874)	$ (7,299)