CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flow From Operating Activities:
Net income	$ 48,586	$ 49,469
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,668	2,748
Change in deferred taxes	(1,665)	(3,079)
Share-based compensation	1,100	1,190
Loans originated for sale	(63,805)	(111,558)
Proceeds from sales of loans held for sale	72,456	114,383
Gains on sales of loans held for sale	(1,402)	(3,289)
Gains on sales of securities available for sale	(566)	(1,799)
Increase in cash surrender of life insurance	(1,176)	(1,189)
Gains on life insurance benefits	(520)	(147)
Change in interest receivable	1,106	(714)
Change in interest payable	827	733
Other adjustments	(7,388)	6,062
Net cash provided by operating activities	50,221	52,810
Cash Flows from Investing Activities:
Net change in interest-bearing deposits	78,892	(501)
Purchases of:
Securities available for sale	(62,164)	(597,901)
Securities held to maturity	(206,523)	(135,098)
Proceeds from sales of securities available for sale	35,029	48,016
Proceeds from maturities of:
Securities available for sale	37,442	80,114
Securities held to maturity	42,834	66,361
Change in Federal Home Loan Bank stock	2,314	0
Net change in loans	(116,409)	(72,704)
Proceeds from the sale of other real estate owned	174	495
Proceeds from life insurance benefits	856	315
Other adjustments	(2,896)	(2,285)
Net cash used in investing activities	(190,451)	(613,188)
Net change in :
Demand and savings deposits	211,458	620,609
Certificates of deposit and other time deposits	(38,082)	(30,439)
Borrowings	59	8,678
Repayment of borrowings	(36,975)	(30,093)
Cash dividends on common stock	(15,607)	(14,130)
Stock issued under employee benefit plans	0	144
Stock issued under dividend reinvestment and stock purchase plans	471	443
Stock options exercised	37	171
Net cash provided by financing activities	121,361	555,383
Net Change in Cash and Cash Equivalents	(18,869)	(4,995)
Cash and Cash Equivalents, January 1	167,146	192,896
Cash and Cash Equivalents, March 31	148,277	187,901
Additional cash flow information:
Interest paid	6,433	8,655
Income tax paid	7,750	0
Loans transferred to other real estate owned	5,868	44
Fixed assets transferred to other real estate owned	0	1,167
Non-cash investing activities using trade date accounting	5,246	66,558
ROU assets obtained in exchange for new operating lease liabilities	$ 53	$ 386