CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 59,451	$ 60,662
Money market funds and federal funds sold	10,099	1,823
Cash and cash equivalents	69,550	62,485
Interest bearing time deposits	1,670	1,915
Securities available for sale	871,080	867,760
Loans held for sale	20,706	8,282
Loans, net of allowance for loan losses of $22,638 in 2015 and $23,250 in 2014	1,946,825	1,934,515
FHLB and other stock, at cost	13,854	13,854
Premises and equipment, net	60,660	60,527
Goodwill	73,450	73,450
Purchased intangible assets	4,676	5,096
Cash surrender value of life insurance	61,528	62,002
Interest receivable and other assets	28,831	32,630
Total assets	3,152,830	3,122,516
Deposits
Noninterest bearing	550,497	513,393
Interest bearing	1,924,737	1,954,928
Total deposits	2,475,234	2,468,321
Other borrowings	20,518	26,349
Federal Home Loan Bank (FHLB) advances	235,480	214,413
Subordinated debentures	41,239	41,239
Other liabilities	11,428	11,532
Total liabilities	2,783,899	2,761,854
Shareholders' equity
Preferred stock, no par value Authorized shares - 400,000 Issued shares - 0 Outstanding shares - 0 Aggregate liquidation preference $0
Common stock $.50 stated value: Authorized shares - 100,000,000 Issued shares - 22,245,067 in 2015 and 22,222,727 in 2014 Outstanding shares - 21,694,815 in 2015 and 21,687,525 in 2014	11,173	11,159
Treasury stock - 550,252 in 2015 and 535,202 in 2014 at cost	(9,020)	(8,701)
Additional paid-in capital	246,829	246,635
Retained earnings	102,698	97,856
Accumulated other comprehensive income	17,251	13,713
Total shareholders' equity	368,931	360,662
Total liabilities and shareholders' equity	$ 3,152,830	$ 3,122,516