CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Assets
Cash and due from banks	$ 89,623	$ 75,778
Money market funds and federal funds sold	7,882	10,774
Cash and cash equivalents	97,505	86,552
Interest bearing time deposits	2,065	1,960
Securities available for sale	1,077,573	1,007,540
Loans held for sale	7,794	12,479
Loans, net of allowance for loan losses of $22,543 and $22,499	3,040,920	2,629,174
FHLB and other stock, at cost	27,796	21,693
Premises and equipment, net	82,438	76,426
Goodwill	137,090	101,315
Purchased intangible assets	13,901	7,419
Cash surrender value of life insurance	88,633	80,539
Interest receivable and other assets	72,147	55,160
Total assets	4,647,862	4,080,257
Deposits
Noninterest bearing	868,384	767,159
Interest bearing	2,639,219	2,343,712
Total deposits	3,507,603	3,110,871
Other borrowings	185,652	209,672
Long term Federal Home Loan Bank (FHLB) advances	335,986	249,658
Subordinated debentures	56,545	41,239
Other liabilities	29,118	19,323
Total liabilities	4,114,904	3,630,763
Commitments and contingent liabilities
Shareholders' equity
Common stock $.50 stated value: Authorized shares - 100,000,000 Issued shares - 26,121,057 and 24,682,189 Outstanding shares - 25,586,013 and 24,067,364	13,250	12,463
Treasury stock - 535,044 and 614,825 shares, at cost	(9,677)	(10,909)
Additional paid-in capital	347,161	299,116
Retained earnings	178,021	145,745
Accumulated other comprehensive income	4,203	3,079
Total shareholders' equity	532,958	449,494
Total liabilities and shareholders' equity	$ 4,647,862	$ 4,080,257