Consolidated Statements Of Financial Condition (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Cash and cash equivalents:
Cash and due from banks	$ 84,697	$ 60,342
Federal funds sold and interest-bearing deposits in other banks	94	94
Total cash and cash equivalents	84,791	60,436
Securities available for sale, at fair value	853,437	823,796
Securities held to maturity, at amortized cost (fair value of $18,260 and $18,478, respectively)	17,747	17,905
Loans held for sale	2,142	1,518
Loans (net of allowance for loan losses of $25,827 and $24,714, respectively)	1,691,463	1,681,012
Company owned life insurance	47,808	47,386
Premises and equipment, net	37,327	36,618
Goodwill and other intangible assets, net	50,288	50,389
Other assets	42,655	44,805
Total assets	2,827,658	2,763,865
Deposits:
Noninterest-bearing demand	494,362	501,514
Interest-bearing demand	529,115	449,744
Savings and money market	748,482	655,598
Time deposits	637,538	654,938
Total deposits	2,409,497	2,261,794
Short-term borrowings	139,620	179,806
Other liabilities	23,611	68,368
Total liabilities	2,572,728	2,509,968
Shareholders' equity:
Total preferred equity	17,419	17,471
Common stock, $0.01 par value, 50,000,000 shares authorized; 14,161,597 shares issued	142	142
Additional paid-in capital	67,319	67,710
Retained earnings	175,554	172,244
Accumulated other comprehensive income	1,137	3,253
Treasury stock, at cost - 357,639 and 373,888 shares, respectively	(6,641)	(6,923)
Total shareholders' equity	254,930	253,897
Total liabilities and shareholders' equity	2,827,658	2,763,865
Series A 3% Preferred Stock [Member]
Shareholders' equity:
Total preferred equity	150	150
Series B-1 8.48% Preferred Stock [Member]
Shareholders' equity:
Total preferred equity	$ 17,269	$ 17,321