Consolidated Statements Of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Consolidated Statements Of Financial Condition [Abstract]
Held to maturity securities, fair value	$ 11,818	$ 12,880
Available for sale securities, amortized cost	$ 360,609	$ 352,275
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	19,900,855	19,810,877
Treasury Stock, Shares	867,310	617,818