CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net income	$ 64,141	$ 77,840
Adjustments to reconcile net income to net cash from operating activities:
Depreciation	4,579	4,494
Provision for credit losses	5,550	417
Amortization of loan servicing rights	431	583
Net change in loan servicing rights valuation allowance	0	(708)
Loans originated for sale, including participations	(6,120)	(27,273)
Net gain on sales of loans	(224)	(958)
Proceeds from sale of loans, including participations	6,075	34,299
Net (gain) loss on sales of premises and equipment	3	3
Net loss on sales and calls of securities available-for-sale	16	0
Net securities amortization	3,732	4,817
Stock based compensation expense	1,792	6,713
Losses (earnings) on life insurance	(2,393)	212
Tax benefit of stock award issuances	(720)	(514)
Net change:
Interest receivable and other assets	(3,386)	(2,782)
Interest payable and other liabilities	14,000	37,707
Total adjustments	23,335	57,010
Net cash from operating activities	87,476	134,850
Cash flows from investing activities:
Proceeds from sale of securities available-for-sale	102,827	0
Proceeds from maturities, calls and principal paydowns of securities available-for-sale	56,830	86,001
Proceeds from maturities, calls and principal paydowns of securities held-to-maturity	6	5
Purchases of securities available-for-sale	(4,314)	(313,905)
Purchase of life insurance	(222)	(727)
Net (increase) decrease in total loans	(166,904)	(202,945)
Proceeds from sales of land, premises and equipment	13	4
Purchases of land, premises and equipment	(5,010)	(3,678)
Purchase of Federal Home Loan Bank stock	(5,625)	0
Proceeds from redemption of Federal Home Loan Bank stock	0	932
Net cash from investing activities	(22,399)	(434,313)
Cash flows from financing activities:
Net increase (decrease) in total deposits	196,455	(71,274)
Net increase (decrease) in short-term borrowings	(22,000)	0
Payments on long-term FHLB borrowings	0	(75,000)
Net payments on short-term FHLB borrowings	(185,000)	0
Common dividends paid	(35,311)	(30,624)
Preferred dividends paid	(13)	(13)
Payments related to equity incentive plans	(3,124)	(1,780)
Purchase of treasury stock	(491)	(505)
Sale of treasury stock	405	221
Net cash from financing activities	(49,079)	(178,975)
Net change in cash and cash equivalents	15,998	(478,438)
Cash and cash equivalents at beginning of the period	130,282	683,240
Cash and cash equivalents at end of the period	146,280	204,802
Cash paid during the period for:
Interest	90,897	18,583
Income taxes	9,275	13,780
Supplemental non-cash disclosures:
Loans transferred to other real estate owned	284	0
Right-of-use assets obtained in exchange for lease liabilities	$ 0	$ 1,612