Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Net income	$ 71,879	$ 80,699
Adjustments to reconcile net income to net cashprovided by operating activities:
Depreciation and amortization/accretion	5,816	5,752
Provision (Reversal of Provision) for Credit Losses	300	(1,550)
Stock option compensation expense	773	678
Amortization of deferred loan fees	(306)	(269)
Securities losses	0	125
Net changes in:
Interest income receivable	4,234	(222)
Income taxes payable	(11,555)	28,144
Deferred income taxes	3,000	942
Other assets	(48)	173
Interest expense payable	3,711	38
Other liabilities	(6,558)	(6,848)
Net Cash Provided by Operating Activities	71,246	107,662
Investing Activities:
Net repayments of loans	33,851	37,370
Purchases of debt securities available for sale	(4,767)	0
Proceeds from maturity/calls of debt securities available for sale	299,754	286,702
Proceeds from maturity/calls of debt securities held to maturity	20,612	18,525
Purchases of Federal Reserve Bank stock	0	(2,326)
Purchases of premises and equipment	(583)	(590)
Net Cash Provided by Investing Activities	348,867	339,681
Financing Activities:
Net change in deposits	(342,827)	(519,363)
Net change in borrowings	242,005	80,213
Exercise of stock options	203	0
Retirement of common stock	(210)	(13,747)
Common stock dividends paid	(23,474)	(22,495)
Net Cash Provided by (Used in) Financing Activities	(124,303)	(475,392)
Net Change In Cash and Due from Banks	295,810	(28,049)
Cash and Due from Banks at Beginning of Period	190,314	294,236
Cash and Due from Banks at End of Period	486,124	266,187
Supplemental disclosure of noncash activities:
Right-of-use assets acquired in exchange for operating lease liabilities	2,970	3,934
Securities purchases pending settlement	9,051	0
Supplemental disclosure of cash flow activities:
Cash paid for amounts included in operating lease liabilities	3,269	3,052
Interest paid for the period	4,597	1,040
Income tax payments for the period	$ 34,255	$ 0