Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 114,873,000	$ 79,283,000
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	19,957,000	16,354,000
Change In Unamortized Net Loan Costs And Premiums	(5,662,000)	(15,136,000)
Accretion of acquired loans	(578,000)	(3,422,000)
Release of provision for credit losses	(2,000,000)	(7,500,000)
Deferred income tax expense	503,000	469,000
Equity Securities, FV-NI, Gain (Loss)	2,077,000	(864,000)
Gain (Loss) on Disposition of Property Plant Equipment	426,000	60,000
Sale and Leaseback Transaction, Gain (Loss), Net	289,000	289,000
Stock based compensation	2,466,000	2,760,000
Increase in cash surrender value of life insurance policies	(3,666,000)	(2,912,000)
Gain Realized on Life Insurance Policies	(123,000)	(258,000)
Operating Lease, Payments	(12,437,000)	(6,088,000)
Operating lease termination payments	0	(4,750,000)
Change in Fair Value on Loans Held for Sale	426,000	1,459,000
Net change in:
Trading assets	83,000	(601,000)
Loans held for sale	21,895,000	31,084,000
Other assets	38,380,000	79,393,000
Increase (Decrease) in Other Operating Liabilities	(5,049,000)	(51,289,000)
Total adjustments	57,565,000	38,470,000
Net cash provided by operating activities	172,438,000	117,753,000
Proceeds from Sale of Debt and Equity Securities, FV-NI, Held-for-investment	0	1,164,000
Cash flows used in investing activities
Increase (Decrease) in Equity Securities, FV-NI	(323,000)	(1,415,000)
Proceeds from maturities and principal repayments of securities available for sale	79,842,000	51,536,000
Payments to Acquire Debt Securities, Available-for-sale	(123,289,000)	(438,903,000)
Proceeds from maturities and principal repayments of securities held to maturity	96,825,000	137,258,000
Purchases of securities held to maturity	(438,643,000)	(274,781,000)
Net redemption of Federal Home Loan Bank stock	5,158,000	1,171,000
Investments in low income housing projects	(13,733,000)	(9,556,000)
Purchases of life insurance policies	(101,000)	(40,102,000)
Proceeds from Life Insurance Policy	218,000	576,000
Net (increase) decrease in loans	(83,997,000)	468,901,000
Purchases of bank premises and equipment	(16,153,000)	(6,970,000)
Proceeds from the sale of bank premises and equipment		4,000
Net cash used in investing activities	(494,196,000)	(111,117,000)
Cash flows (used in) provided by financing activities
Net decrease in time deposits	(219,533,000)	(133,295,000)
Net (decrease) increase in other deposits	(56,949,000)	1,127,111,000
Repayments of Debt	(14,063,000)	(9,375,000)
Net Purchases from Stock Options Exercised	0	(57,000)
Restricted stock awards issued, net of awards surrendered	(1,085,000)	(1,243,000)
Proceeds from shares issued under direct stock purchase plan	1,159,000	1,033,000
Payments for shares repurchased under share repurchase program	(105,298,000)	0
Common dividends paid	(46,890,000)	(31,016,000)
Net cash (used in) provided by financing activities	(442,659,000)	953,158,000
Net (decrease) increase in cash and cash equivalents	(764,417,000)	959,794,000
Cash and cash equivalents at beginning of year	2,240,684,000	1,296,636,000
Cash and cash equivalents at end of period	1,476,267,000	2,256,430,000
Supplemental schedule of noncash activities
Net increase in capital commitments relating to low income housing project investments	4,472,000	34,232,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 8,811,000	$ 5,873,000