Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 53,097,000	$ 41,711,000
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	10,119,000	8,228,000
Change In Unamortized Net Loan Costs And Premiums	(3,666,000)	(8,594,000)
Accretion of acquired loans	(84,000)	(1,724,000)
(Release of) provision for credit losses	(2,000,000)	(2,500,000)
Deferred income tax expense	643,000	567,000
Net unrealized (gain) loss on equity securities	627,000	(316,000)
Gain (Loss) on Disposition of Property Plant Equipment	406,000	4,000
Sale and Leaseback Transaction, Gain (Loss), Net	145,000	145,000
Stock based compensation	834,000	1,150,000
Increase in cash surrender value of life insurance policies	(1,795,000)	(1,323,000)
Gain Realized on Life Insurance Policies	0	(258,000)
Operating Lease, Payments	(9,030,000)	(3,077,000)
Change in Fair Value on Loans Held for Sale	548,000	1,764,000
Net change in:
Trading assets	(236,000)	(431,000)
Loans held for sale	17,987,000	14,708,000
Other assets	46,805,000	70,901,000
Increase (Decrease) in Other Operating Liabilities	(38,582,000)	(53,201,000)
Total adjustments	22,431,000	25,753,000
Net cash provided by operating activities	75,528,000	67,464,000
Cash flows used in investing activities
Increase (Decrease) in Equity Securities, FV-NI	(184,000)	(124,000)
Proceeds from maturities and principal repayments of securities available for sale	34,927,000	26,092,000
Payments to Acquire Debt Securities, Available-for-sale	(98,246,000)	(223,986,000)
Proceeds from maturities and principal repayments of securities held to maturity	51,072,000	68,497,000
Purchases of securities held to maturity	(266,972,000)	(149,453,000)
Investments in low income housing projects	(6,405,000)	(6,632,000)
Purchases of life insurance policies	(93,000)	(40,093,000)
Proceeds from Life Insurance Policy	0	576,000
Net decrease in loans	10,605,000	153,150,000
Purchases of bank premises and equipment	(8,335,000)	(2,524,000)
Proceeds from the sale of bank premises and equipment		4,000
Net cash used in investing activities	(283,631,000)	(174,493,000)
Cash flows provided by (used in) financing activities
Net decrease in time deposits	(131,925,000)	(82,569,000)
Net increase (decrease) in other deposits	(21,112,000)	682,938,000
Repayments of Debt	(14,063,000)	(4,688,000)
Net Purchases from Stock Options Exercised	0	(57,000)
Restricted stock awards issued, net of awards surrendered	(1,063,000)	(1,220,000)
Proceeds from shares issued under direct stock purchase plan	571,000	492,000
Payments for shares repurchased under share repurchase program	(1,902,000)	0
Common dividends paid	(22,728,000)	(15,164,000)
Net cash provided by (used in) financing activities	(192,222,000)	579,732,000
Net increase (decrease) in cash and cash equivalents	(400,325,000)	472,703,000
Cash and cash equivalents at beginning of year	2,240,684,000	1,296,636,000
Cash and cash equivalents at end of period	1,840,359,000	1,769,339,000
Supplemental schedule of noncash activities
Net increase (decrease) in capital commitments relating to low income housing project investments	(718,000)	24,014,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 1,549,000	$ 0