CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 117,478	$ 121,598
Interest-bearing deposits with other banks	29,839	82,450
Investment securities available-for-sale, at fair value (amortized cost $1,295,377 at June 30, 2017 and $1,045,337 at December 31, 2016)	1,298,578	1,039,870
Investment securities held-to-maturity (fair value $698,722 at June 30, 2017 and $763,575 at December 31, 2016)	696,269	763,254
Other investments	53,285	51,077
Loans held for sale	11,939	13,135
Loans
Commercial	1,824,589	1,781,948
Lease financing	88,152	93,108
Real estate - construction	443,112	399,434
Real estate-commercial	2,471,655	2,427,577
Real estate-residential	490,398	500,980
Home equity	464,066	460,388
Installment	47,654	50,639
Credit card	44,139	43,408
Total loans and leases	5,873,765	5,757,482
Allowance for loan and lease losses	54,873	57,961
Net loans and leases	5,818,892	5,699,521
Premises and equipment	128,956	131,579
Goodwill and other intangibles	210,045	210,625
Accrued interest and other assets	344,761	324,858
Total assets	8,710,042	8,437,967
Deposits
Interest-bearing	1,496,173	1,513,771
Savings	2,398,262	2,142,189
Time	1,097,911	1,321,843
Total interest-bearing deposits	4,992,346	4,977,803
Noninterest-bearing	1,476,563	1,547,985
Total deposits	6,468,909	6,525,788
Federal funds purchased and securities sold under agreements to repurchase	130,633	120,212
Federal Home Loan Bank short-term borrowings	957,700	687,700
Total short-term borrowings	1,088,333	807,912
Long-term debt	119,669	119,589
Total borrowed funds	1,208,002	927,501
Accrued interest and other liabilities	135,014	119,454
Total liabilities	7,811,925	7,572,743
SHAREHOLDERS' EQUITY
Common stock - no par value Authorized - 160,000,000 shares Issued - 68,730,731 shares in 2017 and 2016	569,302	570,382
Retained earnings	463,250	437,188
Accumulated other comprehensive loss	(22,222)	(28,443)
Treasury stock, at cost, 6,589,660 shares in 2017 and 6,751,179 shares in 2016	(112,213)	(113,903)
Total shareholders' equity	898,117	865,224
Total liabilities and shareholders' equity	$ 8,710,042	$ 8,437,967