CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 15,245	$ 14,181
Adjustments to reconcile net income to net cash provided by operations:
Provision for credit loss expense	1,643	2,122
Depreciation and amortization of premises and equipment, operating leases assets, core deposit intangible, and mortgage servicing rights	1,758	1,721
Accretion of securities, deferred loan fees and costs, net yield and credit mark on acquired loans, and unearned income	(985)	(963)
Net amortization of deferred costs on borrowings	75	0
Accretion of deferred PPP processing fees	(1,237)	(2,731)
Net realized gains on sales of available-for-sale securities	(651)	0
Net realized and unrealized (gains) losses on equity securities	394	(120)
Gain on sale of loans	(724)	(1,144)
Net losses (gains) on dispositions of premises and equipment and foreclosed assets	0	42
Proceeds from sale of loans	9,731	22,807
Origination of loans held for sale	(15,645)	(18,612)
Income on bank owned life insurance	(694)	(486)
Gain on bank owned life insurance (death benefit proceeds in excess of cash surrender value)	0	(454)
Restricted stock compensation expense	501	509
Changes in:
Accrued interest receivable and other assets	(3,102)	(2,190)
Accrued interest payable, lease liabilities, and other liabilities	(2,521)	(3,572)
NET CASH PROVIDED BY OPERATING ACTIVITIES	3,788	11,110
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturities, prepayments and calls of available-for-sale securities	30,475	44,082
Proceeds from sales of available-for-sale securities	22,164	0
Purchase of available-for-sale securities	(30,181)	(84,961)
Proceeds from maturities, prepayments and calls of held-to-maturity securities	7,220	0
Purchases of held-to-maturity securities	(213,853)	0
Purchase of equity securities	(120)	(108)
Loan origination and payments, net	(113,804)	(22,471)
Proceeds from death benefit of bank owned life insurance policies	0	1,389
Redemption (purchase) of FHLB, other equity, and restricted equity interests	(615)	555
Purchase of premises and equipment	(1,874)	(1,439)
Proceeds from the sale of premises and equipment and foreclosed assets	37	130
NET CASH USED BY INVESTING ACTIVITIES	(300,551)	(62,823)
Net change in:
Checking, money market and savings accounts	23,757	193,911
Certificates of deposit	(48,513)	(17,555)
Purchase of treasury stock	(1,670)	(159)
Cash dividends paid, common stock	(2,960)	(2,860)
Cash dividends paid, preferred stock	(1,075)	(1,075)
NET CASH PROVIDED (USED) BY FINANCING ACTIVITIES	(30,461)	172,262
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(327,224)	120,549
CASH AND CASH EQUIVALENTS, Beginning	732,198	532,694
CASH AND CASH EQUIVALENTS, Ending	404,974	653,243
Cash paid during the period for:
Interest	3,668	5,053
Income taxes	1,133	726
SUPPLEMENTAL NONCASH DISCLOSURES:
Transfers to other real estate owned	0	4
Transfers from loans held for sale to loans held for investment	5,600	0
Transfers from available-for-sale to held-to-maturity	101,069	0
Grant of restricted stock awards from treasury stock	976	1,228
Grant of performance based restricted stock awards from treasury stock	173	262
Lease liabilities arising from obtaining right-of-use assets	$ 6,077	$ 0