CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash Flow From Operating Activities:
Net income	$ 67,255	$ 79,873
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	41,647	1,700
Depreciation and amortization	5,435	4,379
Change in deferred taxes	(18,509)	(398)
Share-based compensation	2,433	1,825
Loans originated for sale	(322,288)	(183,498)
Proceeds from sales of loans held for sale	336,583	184,667
Gains on sales of loans held for sale	(6,159)	(2,245)
Gains on sales of securities available for sale	(7,680)	(2,983)
Increase in cash surrender of life insurance	(2,591)	(1,916)
Gains on life insurance benefits	95	19
Change in interest receivable	(8,162)	(4,269)
Change in interest payable	(1,167)	1,133
Other adjustments	28,006	4,759
Net cash provided by operating activities	114,708	83,008
Cash Flows from Investing Activities:
Net change in interest-bearing deposits	(261,758)	(92,651)
Purchases of:
Securities available for sale	(341,116)	(306,291)
Securities held to maturity	(221,711)	(238,559)
Proceeds from sales of securities available for sale	167,390	82,052
Proceeds from maturities of:
Securities available for sale	135,398	53,910
Securities held to maturity	127,380	35,185
Net change in loans	(840,804)	(288,195)
Proceeds from the sale of other real estate owned	592	827
Proceeds from life insurance benefits	177	633
Other adjustments	(5,190)	(3,691)
Net cash used in investing activities	(1,239,642)	(756,780)
Net change in :
Demand and savings deposits	1,419,771	400,314
Certificates of deposit and other time deposits	(293,739)	164,421
Borrowings	467,056	533,010
Repayment of borrowings	(332,595)	(410,689)
Cash dividends on common stock	(28,336)	(23,847)
Stock issued under employee benefit plans	309	362
Stock issued under dividend reinvestment and stock purchase plans	863	709
Stock options exercised	83	105
Restricted shares withheld for taxes	(8)	(1,675)
Repurchase of common stock	(55,912)	0
Net cash provided by financing activities	1,177,492	662,710
Net Change in Cash and Cash Equivalents	52,558	(11,062)
Cash and Cash Equivalents, January 1	177,201	139,247
Cash and Cash Equivalents, June 30	229,759	128,185
Additional cash flow information:
Interest paid	43,331	50,175
Income tax paid (refunded)	(300)	11,499
Loans transferred to other real estate owned	761	314
Fixed assets transferred to other real estate owned	262	965
Non-cash investing activities using trade date accounting	13,115	40,618
ROU assets obtained in exchange for new operating lease liabilities	$ 1,398	$ 23,384