Consolidated Condensed Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Assets:
Cash and due from banks	$ 102,928	$ 133,511
Money market instruments	279,327	104,188
Cash and cash equivalents	382,255	237,699
Investment securities:
Securities available-for-sale, at fair value (amortized cost of $1,282,022 and $1,299,980 at September 30, 2015 and December 31, 2014, respectively)	1,293,464	1,301,915
Securities held-to-maturity, at amortized cost (fair value of $119,585 and $143,490 at September 30, 2015 and December 31, 2014, respectively)	117,509	140,562
Other investment securities	58,311	58,311
Total investment securities	1,469,284	1,500,788
Loans	4,999,912	4,829,682
Allowance for loan losses	(58,483)	(54,352)
Net loans	4,941,429	4,775,330
Bank owned life insurance	180,739	171,928
Prepaid assets	82,949	75,190
Goodwill	72,334	72,334
Premises and equipment, net	59,581	55,479
Affordable housing tax credit investments	52,731	48,911
Other real estate owned	20,136	22,605
Interest Receivable	18,976	17,677
Mortgage loan servicing rights	8,812	8,613
Other	11,114	14,645
Total assets	7,300,340	7,001,199
Liabilities and Shareholders' Equity:
Noninterest bearing	1,288,750	1,269,296
Interest bearing	4,166,232	3,858,704
Total deposits	5,454,982	5,128,000
Short-term borrowings	278,324	276,980
Long-term debt	736,580	786,602
Subordinated debentures and notes	45,000	45,000
Unfunded commitments in affordable housing tax credit investments	21,339	16,629
Accrued interest payable	2,470	2,551
Other	45,842	48,896
Total liabilities	6,584,537	6,304,658
Shareholders' equity:
Preferred shares (200,000 shares authorized; 0 shares issued)	0	0
Common shares (No par value; 20,000,000 shares authorized; 16,150,859 shares issued at September 30, 2015 and 16,150,888 shares issued at December 31, 2014)	303,805	303,104
Retained earnings	501,145	484,484
Treasury shares (810,189 shares at September 30, 2015 and 758,489 at December 31, 2014)	(81,718)	(77,439)
Accumulated other comprehensive loss, net of taxes	(7,429)	(13,608)
Total shareholders' equity	715,803	696,541
Total liabilities and shareholders' equity	$ 7,300,340	$ 7,001,199