Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Operating activities:
Net Income (Loss) Attributable to Parent	$ 38,875	$ 42,831
Adjustments to reconcile net income to net cash provided by operating activities:
Recovery of credit losses	(4,605)	(4,855)
Amortization of Deferred Loan Origination Fees, Net	(3,772)	(6,334)
Depreciation	3,482	3,216
Amortization of investment securities, net	875	354
Depreciation, Amortization and Accretion, Net	(86)	(655)
Gain on equity securities, net	(2,353)	(1,810)
Loan originations to be sold in secondary market	(73,713)	(192,382)
Proceeds from sale of loans in secondary market	77,189	212,880
Share-based compensation expense	1,981	1,836
Loss on sale of OREO, net	0	33
Bank owned life insurance income	(1,175)	(1,165)
Investment in qualified affordable housing tax credits amortization	1,980	1,856
Changes in assets and liabilities:
Decrease (increase) in other assets	1,253	(13,000)
(Decrease) increase in other liabilities	(9,742)	10,166
Net cash provided by operating activities	28,342	45,865
Investing activities:
Payments for (Proceeds from) Federal Home Loan Bank Stock	0	4,283
Proceeds from Sale of Debt Securities, Available-for-sale	0	934
Proceeds from Sale, Maturity and Collection of Investments [Abstract]
Available-for-sale securities	54,263	58,344
Payments to Acquire Investments [Abstract]
Payments to Acquire Debt Securities, Available-for-sale	(128,731)	(131,852)
Equity securities	(1,630)	0
Payments to Acquire Other Investments	124	1,102
Net loan originations, portfolio loans	52,444	(2,922)
Proceeds from Sale of Other Assets, Investing Activities	0	3,538
Payments for Affordable Housing Programs	(7,252)	(6,094)
Proceeds from the sale of OREO	38	626
Life insurance death benefits	367	674
Payment to Acquire Life Insurance Policy, Investing Activities	(7,500)	0
Purchases of premises and equipment	(2,127)	(4,114)
Net cash used in investing activities	(40,004)	(75,481)
Financing activities:
Net increase in deposits	257,927	762,896
Increase (Decrease) in Other Deposits	(166,134)	(99,034)
Net decrease in short-term borrowings	(32,859)	(36,845)
Repayments of Long-term Debt	0	(2,500)
Payment, Tax Withholding, Share-based Payment Arrangement	(2,451)	(1,858)
Cash dividends paid	(17,109)	(20,242)
Net cash provided by financing activities	39,374	602,417
Increase in cash and cash equivalents	27,712	572,801
Cash and cash equivalents at beginning of year	219,180	370,474
Cash and cash equivalents at end of period	246,892	943,275
Supplemental disclosures of cash flow information:
Cash paid for interest	5,429	6,745
Non cash activities:
Real Estate Owned, Transfer to Real Estate Owned	55	78
Transfer to Investments	10,000	0
Consumer Portfolio Segment [Member]
Changes in assets and liabilities:
Decrease (increase) in prepaid dealer premiums	94	(508)
Mortgage Loans on Real Estate [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of loans in secondary market	$ 1,941	$ 6,598

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