CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and due from banks	$ 161,515	$ 117,620
Interest-bearing deposits with other banks	9,681	25,830
Investment securities available-for-sale, at market value (cost $887,692 at March 31, 2014 and $945,052 at December 31, 2013)	862,526	913,601
Investment securities held-to-maturity (market value $885,327 at March 31, 2014 and $824,985 at December 31, 2013)	890,806	837,272
Other investments	47,659	47,427
Loans held for sale	6,171	8,114
Loans
Commercial	1,118,057	1,035,668
Real estate-construction	87,996	80,741
Real estate-commercial	1,513,891	1,496,987
Real estate-residential	360,671	352,931
Installment	44,911	47,133
Home equity	374,427	376,454
Credit card	34,458	35,592
Lease financing	79,792	80,135
Total loans, excluding covered loans	3,614,203	3,505,641
Less: Allowance for loan and lease losses - uncovered	43,023	43,829
Net loans	3,571,180	3,461,812
Loans and Leases Receivable, Gross, Carrying Amount, Covered	409,405	457,873
Less: Allowance for loan and lease losses - covered	10,573	18,901
Net loans - covered	398,832	438,972
Loans and Leases Receivable, Net Reported Amount, Covered and Not Covered	3,970,012	3,900,784
Premises and equipment	135,105	137,110
Goodwill	95,050	95,050
Other intangibles	5,566	5,924
FDIC indemnification asset	39,003	45,091
Interest Receivable and Other Assets	275,995	283,390
Total assets	6,499,089	6,417,213
Deposits
Interest-bearing	1,102,029	1,125,723
Savings	1,639,495	1,612,005
Time	956,049	952,327
Total interest-bearing deposits	3,697,573	3,690,055
Noninterest-bearing	1,122,816	1,147,452
Total deposits	4,820,389	4,837,507
Federal funds purchased and securities sold under agreements to repurchase	112,293	94,749
Federal Home Loan Bank short-term borrowings	722,800	654,000
Total short-term borrowings	835,093	748,749
Long-term debt	60,163	60,780
Total borrowed funds	895,256	809,529
Accrued interest and other liabilities	92,097	88,016
Total liabilities	5,807,742	5,735,052
SHAREHOLDERS' EQUITY
Common stock - no par value Authorized - 160,000,000 shares Issued - 68,730,731 shares in 2013 and 2012	573,243	577,076
Retained earnings	330,672	324,192
Accumulated other comprehensive loss	(27,648)	(31,281)
Treasury stock, at cost, 11,020,794 shares in 2014 and 11,197,685 shares in 2013	(184,920)	(187,826)
Total shareholders' equity	691,347	682,161
Total liabilities and shareholders' equity	$ 6,499,089	$ 6,417,213