Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 186,770,000	$ 119,290,000
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	29,528,000	24,586,000
Change In Unamortized Net Loan Costs And Premiums	(6,397,000)	(17,217,000)
Accretion of acquired loans	(65,000)	(5,349,000)
Provision for (release of) credit losses	1,000,000	(17,500,000)
Deferred income tax expense	271,000	271,000
Equity Securities, FV-NI, Gain (Loss)	2,819,000	(695,000)
Gain (Loss) on Disposition of Property Plant Equipment	217,000	32,000
Sale and Leaseback Transaction, Gain (Loss), Net	433,000	433,000
Stock based compensation	3,483,000	3,467,000
Increase in cash surrender value of life insurance policies	(5,549,000)	(4,508,000)
Gain Realized on Life Insurance Policies	(600,000)	(258,000)
Operating Lease, Payments	(15,867,000)	(8,993,000)
Operating lease termination payments	0	(4,750,000)
Change in Fair Value on Loans Held for Sale	620,000	1,534,000
Net change in:
Trading assets	182,000	(666,000)
Loans held for sale	18,959,000	23,017,000
Other assets	32,252,000	16,700,000
Increase (Decrease) in Other Operating Liabilities	58,669,000	28,267,000
Total adjustments	119,089,000	37,505,000
Net cash provided by operating activities	305,859,000	156,795,000
Cash flows used in investing activities
Proceeds from Sale of Debt and Equity Securities, FV-NI, Held-for-investment	30,000	1,164,000
Increase (Decrease) in Equity Securities, FV-NI	(471,000)	(1,522,000)
Proceeds from maturities and principal repayments of securities available for sale	100,790,000	75,442,000
Payments to Acquire Debt Securities, Available-for-sale	(123,289,000)	(1,106,079,000)
Proceeds from maturities and principal repayments of securities held to maturity	132,997,000	199,304,000
Purchases of securities held to maturity	(763,987,000)	(340,713,000)
Net redemption of Federal Home Loan Bank stock	6,189,000	1,584,000
Investments in low income housing projects	(14,896,000)	(19,236,000)
Purchases of life insurance policies	(115,000)	(40,116,000)
Proceeds from Life Insurance Policy	2,273,000	576,000
Net (increase) decrease in loans	(107,211,000)	603,773,000
Purchases of bank premises and equipment	(18,019,000)	(16,114,000)
Proceeds from the sale of bank premises and equipment	1,228,000	78,000
Net cash used in investing activities	(784,481,000)	(641,859,000)
Cash flows (used in) provided by financing activities
Net decrease in time deposits	(351,458,000)	(165,052,000)
Net (decrease) increase in other deposits	(225,519,000)	1,432,037,000
Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net	(25,000,000)	0
Increase Decrease in Federal Home Loan Bank Advances Long Term	0	(10,000,000)
Repayments of Debt	(14,063,000)	(14,063,000)
Net Purchases from Stock Options Exercised	0	(57,000)
Restricted stock awards issued, net of awards surrendered	(1,085,000)	(1,246,000)
Proceeds from shares issued under direct stock purchase plan	1,765,000	1,515,000
Payments for shares repurchased under share repurchase program	(139,946,000)	0
Common dividends paid	(70,460,000)	(46,875,000)
Net cash (used in) provided by financing activities	(825,766,000)	1,196,259,000
Net (decrease) increase in cash and cash equivalents	(1,304,388,000)	711,195,000
Cash and cash equivalents at beginning of year	2,240,684,000	1,296,636,000
Cash and cash equivalents at end of period	936,296,000	2,007,831,000
Supplemental schedule of noncash activities
Net increase in capital commitments relating to low income housing project investments	4,408,000	34,127,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 14,124,000	$ 5,888,000