Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 123,891,000	$ 114,873,000
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	18,383,000	19,957,000
Change In Unamortized Net Loan Costs And Premiums	(817,000)	(5,662,000)
Accretion of acquired loans	(688,000)	578,000
Provision for (release of) credit losses	12,250,000	(2,000,000)
Deferred income tax expense	339,000	503,000
Equity Securities, FV-NI, Gain (Loss)	(635,000)	2,077,000
Gain (Loss) on Disposition of Property Plant Equipment	115,000	426,000
Sale and Leaseback Transaction, Gain (Loss), Net	193,000	289,000
Stock based compensation	3,593,000	2,466,000
Increase in cash surrender value of life insurance policies	(3,803,000)	(3,666,000)
Gain Realized on Life Insurance Policies	(187,000)	(123,000)
Operating Lease, Payments	(6,908,000)	(12,437,000)
Change in Fair Value on Loans Held for Sale	3,000	426,000
Net change in:
Trading assets	(589,000)	83,000
Loans held for sale	(3,777,000)	21,895,000
Other assets	15,903,000	38,380,000
Increase (Decrease) in Other Operating Liabilities	(14,650,000)	(5,049,000)
Total adjustments	18,339,000	57,565,000
Net cash provided by operating activities	142,230,000	172,438,000
Cash flows used in investing activities
Payments to Acquire Equity Securities, FV-NI	284,000	323,000
Proceeds from maturities and principal repayments of securities available for sale	33,346,000	79,842,000
Payments to Acquire Debt Securities, Available-for-sale	0	(123,289,000)
Proceeds from maturities and principal repayments of securities held to maturity	84,000,000	96,825,000
Purchases of securities held to maturity	0	(438,643,000)
Net (purchases) redemptions of Federal Home Loan Bank stock	(34,270,000)	5,158,000
Investments in low income housing projects	(16,992,000)	(13,733,000)
Purchases of life insurance policies	(99,000)	(101,000)
Proceeds from Life Insurance Policy	11,000	218,000
Net increase in loans	(233,753,000)	(83,997,000)
Purchases of bank premises and equipment	(6,646,000)	(16,153,000)
Proceeds from the sale of bank premises and equipment	52,000	0
Net cash used in investing activities	(174,635,000)	(494,196,000)
Cash flows used in financing activities
Net increase (decrease) in time deposits	600,435,000	(219,533,000)
Net decrease in other deposits	(1,231,431,000)	(56,949,000)
Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net	787,860,000	0
Repayments of Debt	0	(14,063,000)
Proceeds from Stock Options Exercised	80,000	0
Restricted stock awards issued, net of awards surrendered	(1,116,000)	(1,085,000)
Proceeds from shares issued under direct stock purchase plan	1,313,000	1,159,000
Payments for shares repurchased under share repurchase program	(119,951,000)	(105,298,000)
Common dividends paid	(49,454,000)	(46,890,000)
Net cash used in financing activities	(12,264,000)	(442,659,000)
Net decrease in cash and cash equivalents	(44,669,000)	(764,417,000)
Cash and cash equivalents at beginning of year	352,933,000	2,240,684,000
Cash and cash equivalents at end of period	308,264,000	1,476,267,000
Supplemental schedule of noncash investing and financing activities
Net increase in capital commitments relating to low income housing project investments	15,683,000	4,472,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 3,943,000	$ 8,811,000