CONSOLIDATED CONDENSED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
ASSETS
Cash and cash equivalents	$ 51,592	$ 101,460
Interest-bearing time deposits	60,407	38,443
Investment securities available for sale	532,867	513,343
Investment securities held to maturity (fair value of $351,439 and $378,174)	336,696	361,020
Mortgage loans held for sale	26,555	22,300
Loans, net of allowance for loan losses of $68,537 and $69,366	2,811,005	2,832,843
Premises and equipment	53,762	52,749
Federal Reserve and Federal Home Loan Bank stock	32,777	32,785
Interest receivable	15,346	16,367
Core deposit intangibles	7,767	8,154
Goodwill	141,375	141,375
Cash surrender value of life insurance	126,098	125,397
Other real estate owned	13,130	13,263
Tax asset, deferred and receivable	27,597	30,867
Other assets	15,856	14,455
TOTAL ASSETS	4,252,830	4,304,821
Deposits:
Noninterest-bearing	763,965	801,597
Interest-bearing	2,546,843	2,544,786
Total Deposits	3,310,808	3,346,383
Borrowings:
Federal funds purchased		18,862
Securities sold under repurchase agreements	161,813	141,828
Federal Home Loan Bank advances	93,169	94,238
Subordinated debentures and term loans	111,778	112,161
Total Borrowings	366,760	367,089
Interest payable	1,348	1,841
Other liabilities	35,356	37,272
Total Liabilities	3,714,272	3,752,585
COMMITMENTS AND CONTINGENT LIABILITIES
STOCKHOLDERS' EQUITY
Common Stock, $.125 stated value: Authorized - 50,000,000 shares Issued and outstanding - 28,780,609 and 28,692,616 shares	3,598	3,587
Additional paid-in capital	256,966	256,843
Retained earnings	216,530	206,397
Accumulated other comprehensive loss	(6,748)	(5,499)
Total Stockholders' Equity	538,558	552,236
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	4,252,830	4,304,821
Preferred Stock, no-par value, $1,000 liquidation value: Authorized - 500,000; Senior Non-Cumulative Perpetual Preferred Stock, Series B; Issued and outstanding - 68,087 and 90,782.94 shares
STOCKHOLDERS' EQUITY
Preferred Stock	68,087	90,783
Cumulative Preferred Stock, $1,000 par value, $1,000 liquidation value; Authorized - 600 shares; Issued and outstanding - 125 shares
STOCKHOLDERS' EQUITY
Preferred Stock	$ 125	$ 125