Securities Available For Sale (Schedule Of Fair Value Of Securities With Continuous Unrealized Losses) (Details) $ in Thousands	Jun. 30, 2015 USD ($) security	Dec. 31, 2014 USD ($) security
Schedule of Available for sale Securities [Line Items]
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value	$ 140,892	$ 78,188
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security	152	109
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses	$ 2,693	$ 1,898
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value	$ 40,883	$ 42,037
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security	136	75
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses	$ 1,470	$ 434
Securities with continuous unrealized losses, Estimated Fair Value	$ 181,775	$ 120,225
Securities with continuous unrealized losses, Number of Investments | security	288	184
Securities with continuous unrealized losses, Unrealized Losses	$ 4,163	$ 2,332
US Government-Sponsored Enterprises [Member]
Schedule of Available for sale Securities [Line Items]
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value	$ 82,334	$ 45,899
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security	105	53
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses	$ 1,486	$ 1,168
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value	$ 22,933	$ 35,511
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security	31	45
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses	$ 928	$ 369
Securities with continuous unrealized losses, Estimated Fair Value	$ 105,267	$ 81,410
Securities with continuous unrealized losses, Number of Investments | security	136	98
Securities with continuous unrealized losses, Unrealized Losses	$ 2,414	$ 1,537
US Government Agency [Member]
Schedule of Available for sale Securities [Line Items]
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value	$ 18,747	$ 19,404
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security	32	24
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses	$ 335	$ 483
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value	$ 13,588	$ 3,657
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security	20	21
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses	$ 300	$ 46
Securities with continuous unrealized losses, Estimated Fair Value	$ 32,335	$ 23,061
Securities with continuous unrealized losses, Number of Investments | security	52	45
Securities with continuous unrealized losses, Unrealized Losses	$ 635	$ 529
Private Label Mortgage-Backed Securities [Member]
Schedule of Available for sale Securities [Line Items]
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value	$ 52	$ 336
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security	1	4
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses	$ 1	$ 7
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value	$ 139	$ 145
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security	4	4
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses	$ 6	$ 7
Securities with continuous unrealized losses, Estimated Fair Value	$ 191	$ 481
Securities with continuous unrealized losses, Number of Investments | security	5	8
Securities with continuous unrealized losses, Unrealized Losses	$ 7	$ 14
Obligations Of States And Political Subdivisions Thereof [Member]
Schedule of Available for sale Securities [Line Items]
Securities with continuous unrealized losses, Less than 12 months, Estimated Fair Value	$ 39,759	$ 12,549
Securities with continuous unrealized losses, Less than 12 months, Number of Investments | security	14	28
Securities with continuous unrealized losses, Less than 12 months, Unrealized Losses	$ 871	$ 240
Securities with continuous unrealized losses, 12 months or longer, Estimated Fair Value	$ 4,223	$ 2,724
Securities with continuous unrealized losses, 12 months or longer, Number of Investments | security	81	5
Securities with continuous unrealized losses, 12 months or longer, Unrealized Losses	$ 236	$ 12
Securities with continuous unrealized losses, Estimated Fair Value	$ 43,982	$ 15,273
Securities with continuous unrealized losses, Number of Investments | security	95	33
Securities with continuous unrealized losses, Unrealized Losses	$ 1,107	$ 252