Parent Company Financial Information (Condensed Statements Of Condition) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Other assets	$ 63,248	$ 63,281
Total assets	3,381,024	3,089,521
Long-term borrowings, net of issuance costs of $1,010	38,990
Other liabilities	24,559	24,658
Shareholders' equity	293,844	279,532	$ 254,839	$ 253,897
Total liabilities and shareholders' equity	3,381,024	3,089,521
Debt issuance costs	1,010
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and due from subsidiary	15,787	9,559
Investment in and receivables due from subsidiary	318,928	273,237
Other assets	4,451	3,433
Total assets	339,166	286,229
Long-term borrowings, net of issuance costs of $1,010	38,990
Other liabilities	6,332	6,697
Shareholders' equity	293,844	279,532
Total liabilities and shareholders' equity	339,166	$ 286,229
Debt issuance costs	$ 1,010