Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 38,670,000	$ 51,957,000
Adjustments to reconcile net income to net cash provided by operating activities:
Net amortization of premiums, discounts and deferred loan fees and costs	209,000	1,533,000
Depreciation and amortization	2,588,000	1,162,000
Amortization of intangible assets	776,000	893,000
Amortization of operating lease right-of-use assets	1,995,000	1,938,000
Provision for loan losses	26,223,000	1,044,000
Loans originated for sale	(78,204,000)	(40,074,000)
Proceeds from sales of loans held for sale	78,312,000	40,508,000
Gains on sales of securities	(342,000)	0
Change in market value of equity securities	625,000	(525,000)
Gains on sales of loans held for sale	(2,562,000)	(1,285,000)
(Gains) losses on other real estate and other repossessed assets	(76,000)	87,000
Losses on sales of premises and equipment	54,000	486,000
Long-term debt prepayment penalty	356,000	0
Stock-based compensation	2,046,000	1,822,000
Excess tax (deficiencies) benefits	(128,000)	183,000
Increase in other assets	(79,414,000)	(20,386,000)
Increase in other liabilities	70,544,000	21,935,000
NET CASH PROVIDED BY OPERATING ACTIVITIES	61,672,000	61,278,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Net cash acquired in acquisitions	0	13,454,000
Proceeds from repayments and maturities of available for sale securities	633,574,000	102,133,000
Proceeds from repayments and maturities of held to maturity securities	26,816,000	22,330,000
Proceeds from sales of equity securities	3,000,000	1,153,000
Proceeds from sales of available for sale securities	94,696,000	0
Purchase of available for sale securities	(746,035,000)	(149,182,000)
Purchase of held to maturity securities	(1,160,000)	(18,897,000)
Purchase of equity securities	(1,228,000)	(259,000)
Death benefit proceeds from bank owned life insurance policy	0	121,000
Proceeds from redemptions of Federal Home Loan Bank stock	97,127,000	79,217,000
Purchases of Federal Home Loan Bank stock	(88,857,000)	(82,155,000)
Net increase in loans	(702,010,000)	(38,308,000)
Proceeds from sales of other real estate and repossessed assets	1,032,000	399,000
Proceeds from dispositions and sales of premises and equipment	49,000	1,827,000
Purchases of premises and equipment	(5,155,000)	(4,166,000)
NET CASH USED IN INVESTING ACTIVITIES	(688,151,000)	(72,333,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in deposits	972,917,000	180,990,000
Decrease in federal funds purchased and securities sold under agreements to repurchase	(230,784,000)	(34,579,000)
Proceeds from other borrowings	25,000,000	46,260,000
Repayments of other borrowings	(56,060,000)	(89,353,000)
Purchase of treasury stock	(1,452,000)	0
Exercise of stock options	0	307,000
Retirement of restricted stock	(492,000)	(654,000)
Dividends paid	(19,093,000)	(18,557,000)
NET CASH PROVIDED BY FINANCING ACTIVITIES	690,036,000	84,414,000
Net increase in cash and cash equivalents	63,557,000	73,359,000
Cash and cash equivalents, beginning of period	282,371,000	208,599,000
CASH AND CASH EQUIVALENTS, END OF PERIOD	345,928,000	281,958,000
Supplemental schedule of non-cash investing and financing activities:
Cash paid during the period for income taxes	17,386,000	10,847,000
Cash paid during the period for interest	35,472,000	46,532,000
Transfer of loans into other repossessed assets and other real estate owned	393,000	599,000
Initial recognition of operating lease right-of-use assets	0	18,651,000
Initial recognition of operating lease liabilities	0	20,203,000
Right-of-use asset obtained in exchange for new operating lease liabilities	741,000	765,000
Non-cash assets acquired:
Federal Home Loan Bank stock	0	1,767,000
Investment securities	0	22,734,000
Loans, including loans held for sale	0	426,118,000
Goodwill and other intangible assets, net	0	23,125,000
Other assets	0	9,304,000
Total non-cash assets acquired	0	483,048,000
Deposits	0	409,638,000
Other borrowings	0	40,957,000
Other liabilities	0	2,490,000
Total liabilities assumed	0	453,085,000
Common stock issued	$ 0	$ 43,417,000