CONSOLIDATED STATEMENTS OF CONDITION (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
ASSETS
Cash and due from banks	$ 46,868	$ 58,290
Securities
Securities available for sale, at fair value	803,620	781,050
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	19,724	21,034
Total securities	823,344	802,084
Trading account assets	2,244	2,300
Loans held for sale	1,608
Loans	1,578,167	1,563,866
Less allowance for loan losses	(23,369)	(23,044)
Net loans	1,554,798	1,540,822
Goodwill and other intangible assets	53,011	53,299
Bank-owned life insurance	45,391	45,053
Premises and equipment, net	27,757	28,059
Deferred tax asset	8,736	7,663
Interest receivable	6,660	6,215
Prepaid FDIC assessment	3,264	3,606
Other real estate owned	1,913	1,313
Other assets	15,223	16,053
Total assets	2,590,817	2,564,757
Deposits
Demand	226,330	240,749
Interest checking, savings and money market	1,152,246	1,169,148
Retail certificates of deposit	409,937	418,442
Brokered deposits	163,272	101,130
Total deposits	1,951,785	1,929,469
Federal Home Loan Bank advances	101,282	56,404
Other borrowed funds	221,092	259,940
Junior subordinated debentures	43,845	43,819
Accrued interest and other liabilities	37,238	41,310
Total liabilities	2,355,242	2,330,942
Shareholders' Equity
Common stock, no par value; authorized 20,000,000 shares, issued and outstanding 7,635,957 and 7,622,750 shares on March 31, 2013 and December 31, 2012, respectively	49,821	49,667
Retained earnings	184,749	181,151
Accumulated other comprehensive income (loss)
Net unrealized gains on securities available-for-sale, net of tax	10,054	12,943
Net unrealized losses on derivative instruments, at fair value, net of tax	(6,355)	(7,205)
Net unrecognized losses on postretirement plans, net of tax	(2,694)	(2,741)
Total accumulated other comprehensive income	1,005	2,997
Total shareholders' equity	235,575	233,815
Total liabilities and shareholders' equity	$ 2,590,817	$ 2,564,757