CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 117,914	$ 121,598
Interest-bearing deposits with other banks	39,058	82,450
Investment securities available-for-sale, at fair value (amortized cost $1,223,188 at March 31, 2017 and $1,045,337 at December 31, 2016)	1,220,046	1,039,870
Investment securities held-to-maturity (fair value $732,024 at March 31, 2017 and $763,575 at December 31, 2016)	730,796	763,254
Other investments	50,996	51,077
Loans held for sale	7,657	13,135
Loans
Commercial	1,779,635	1,781,948
Lease financing	88,888	93,108
Real estate - construction	446,332	399,434
Real estate-commercial	2,398,235	2,427,577
Real estate-residential	486,601	500,980
Home equity	458,974	460,388
Installment	52,063	50,639
Credit card	43,354	43,408
Total loans and leases	5,754,082	5,757,482
Allowance for loan and lease losses	56,326	57,961
Net loans and leases	5,697,756	5,699,521
Premises and equipment	131,808	131,579
Goodwill and other intangibles	210,324	210,625
FDIC indemnification asset	10,800	12,000
Accrued interest and other assets	324,815	324,858
Total assets	8,531,170	8,437,967
Deposits
Interest-bearing	1,494,892	1,513,771
Savings	2,284,821	2,142,189
Time	1,202,563	1,321,843
Total interest-bearing deposits	4,982,276	4,977,803
Noninterest-bearing	1,547,600	1,547,985
Total deposits	6,529,876	6,525,788
Federal funds purchased and securities sold under agreements to repurchase	52,484	120,212
Federal Home Loan Bank short-term borrowings	806,700	687,700
Total short-term borrowings	859,184	807,912
Long-term debt	119,629	119,589
Total borrowed funds	978,813	927,501
Accrued interest and other liabilities	142,416	119,454
Total liabilities	7,651,105	7,572,743
SHAREHOLDERS' EQUITY
Common stock - no par value Authorized - 160,000,000 shares Issued - 68,730,731 shares in 2017 and 2016	567,911	570,382
Retained earnings	451,073	437,188
Accumulated other comprehensive loss	(26,639)	(28,443)
Treasury stock, at cost, 6,596,446 shares in 2017 and 6,751,179 shares in 2016	(112,280)	(113,903)
Total shareholders' equity	880,065	865,224
Total liabilities and shareholders' equity	$ 8,531,170	$ 8,437,967