Investment Securities (Summary Of Contractual Maturity Of Debt Securities Classified As Held To Maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]
Held to Maturity (at fair value), Within One Year	$ 4
Held to Maturity (at fair value), After Five But Within Ten Years	14,858
Held to Maturity (at amortized cost), After Ten Years	111,013
Held-to-maturity Securities, Fair Value	125,875	$ 139,171
Held to Maturity (at amortized cost), Within One Year	4
Held to Maturity (at amortized cost), After Five But Within Ten Years	14,375
Held to Maturity (at amortized cost), After Ten Years	109,550
Total Held to Maturity Securities, Amortized Cost	123,929	138,421
U.S. Agency Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held to Maturity (at amortized cost), After Ten Years	21,025
Held-to-maturity Securities, Fair Value	21,025	22,669
Held to Maturity (at amortized cost), After Ten Years	20,332
Total Held to Maturity Securities, Amortized Cost	20,332	22,072
U.S. GSEs [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held to Maturity (at fair value), After Five But Within Ten Years	9,829
Held-to-maturity Securities, Fair Value	9,829	9,557
Held to Maturity (at amortized cost), After Five But Within Ten Years	9,541
Total Held to Maturity Securities, Amortized Cost	9,541	9,498
FHLB Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held to Maturity (at fair value), After Five But Within Ten Years	4,930
Held-to-maturity Securities, Fair Value	4,930	4,820
Held to Maturity (at amortized cost), After Five But Within Ten Years	4,748
Total Held to Maturity Securities, Amortized Cost	4,748	4,720
Agency MBSs [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held to Maturity (at fair value), Within One Year	4
Held to Maturity (at fair value), After Five But Within Ten Years	99
Held to Maturity (at amortized cost), After Ten Years	7,404
Held-to-maturity Securities, Fair Value	7,507	8,342
Held to Maturity (at amortized cost), Within One Year	4
Held to Maturity (at amortized cost), After Five But Within Ten Years	86
Held to Maturity (at amortized cost), After Ten Years	7,180
Total Held to Maturity Securities, Amortized Cost	7,270	8,109
Agency CMOs [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held to Maturity (at amortized cost), After Ten Years	82,584
Held-to-maturity Securities, Fair Value	82,584	93,783
Held to Maturity (at amortized cost), After Ten Years	82,038
Total Held to Maturity Securities, Amortized Cost	$ 82,038	$ 94,022