Consolidated Condensed Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Assets:
Cash and due from banks	$ 142,593	$ 160,477
Money market instruments	118,872	57,791
Cash and cash equivalents	261,465	218,268
Marketable Securities [Abstract]
Debt Securities, Available-for-sale, Current	1,170,706	1,332,842
Other Investments and Securities, at Cost	94,152	96,302
Total investment securities	1,264,858	1,429,144
Loan balance	7,664,377	7,476,221
Financing Receivable, Allowance for Credit Loss	(86,575)	(83,745)
Net loans	7,577,802	7,392,476
Bank owned life insurance	241,414	231,631
Prepaid assets	169,931	165,879
Goodwill	159,595	159,595
Other intangible assets	4,012	4,652
Premises and equipment, net	72,131	74,211
Affordable housing tax credit investments	68,426	62,703
Other real estate owned	1,210	983
Interest Receivable	39,024	39,236
Operating Lease, Right-of-Use Asset	17,224	15,715
Servicing Asset	14,271	14,656
Other	28,420	27,304
Total assets	9,919,783	9,836,453
Liabilities and Shareholders' Equity:
Noninterest bearing	2,542,446	2,628,234
Interest bearing	5,770,059	5,414,332
Total deposits	8,312,505	8,042,566
Short-term borrowings	94,478	328,182
Subordinated debentures and notes	189,396	189,147
Unfunded commitments in affordable housing tax credit investments	31,468	28,768
Operating Lease, Liability	17,898	16,605
Off-Balance Sheet, Credit Loss, Liability	5,183	5,103
Accrued interest payable	8,812	6,860
Other	76,786	73,929
Total liabilities	8,736,526	8,691,160
Shareholders' equity:
Preferred shares (No par value; 200,000 shares authorized; No shares issued)	0	0
Common shares (No par value; 20,000,000 shares authorized; 17,623,104 common shares issued at June 30, 2024 and at December 31, 2023)	460,821	463,280
Retained earnings	943,149	903,877
Treasury shares (1,473,581 common shares at June 30, 2024 and 1,506,625 common shares at December 31, 2023)	(152,259)	(155,673)
Accumulated other comprehensive loss, net of taxes	(68,454)	(66,191)
Total shareholders' equity	1,183,257	1,145,293
Total liabilities and shareholders' equity	$ 9,919,783	$ 9,836,453