Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	$ 17,377	$ 4,417
Amortization of Deferred Loan Origination Fees, Net	(6,151)	(3,263)
Gain (Loss) on Sale of Investments	(3,313)	607
Depreciation	5,118	4,430
Amortization of investment securities, net	754	770
Depreciation, Amortization and Accretion, Net	(1,458)	870
Loss (gain) on equity securities, net	(1,950)	1,974
Loan originations to be sold in secondary market	(339,525)	(112,038)
Proceeds from sale of loans in secondary market	244,167	108,708
Share-based compensation expense	2,585	2,520
(Gain) loss on sale of OREO, net	(645)	171
Bank owned life insurance income	(2,427)	(2,292)
Investment in qualified affordable housing tax credits amortization	3,658	3,625
Changes in assets and liabilities:
(Increase) decrease in other assets	(4,721)	2,494
Decrease in other liabilities	(7,636)	(4,046)
Net cash (used in) provided by operating activities	(45,570)	46,196
Investing activities:
Payments for (Proceeds from) Federal Home Loan Bank Stock	6,242	9,456
Proceeds from Sale of Debt Securities, Available-for-sale	58,822	56,448
Proceeds from Sale, Maturity and Collection of Investments [Abstract]
Available-for-sale securities	95,493	94,601
Held-to-maturity securities	0	225
Payments to Acquire Investments [Abstract]
Equity securities	(3,364)	(100)
Payments to Acquire Federal Reserve Bank Stock	0	(2,586)
Net loan originations, portfolio loans	(594,241)	(98,056)
Payments for Affordable Housing Programs	(4,131)	(3,634)
Proceeds from the sale of OREO	3,565	900
Life insurance death benefits	563	1,344
Payments to Acquire Businesses, Net of Cash Acquired	0	(4,831)
Purchases of premises and equipment	(14,131)	(8,666)
Net cash (used in) provided by investing activities	(451,169)	47,239
Financing activities:
Net increase in deposits	1,109,440	138,828
Net increase (decrease) in short-term borrowings	61,253	(70,151)
Proceeds from issuance of long-term debt	0	75,000
Repayments of Long-term Debt	(55,000)	(75,000)
Payment, Tax Withholding, Share-based Payment Arrangement	(875)	(827)
Repurchase of common shares to be held as treasury shares	(7,507)	(32,952)
Cash dividends paid	(37,034)	(36,042)
Net cash provided by (used in) financing activities	1,070,277	(1,144)
Increase in cash and cash equivalents	573,538	92,291
Cash and cash equivalents at beginning of year	159,956	167,214
Cash and cash equivalents at end of period	733,494	259,505
Supplemental disclosures of cash flow information:
Cash paid for interest	19,541	30,039
Income Taxes Paid	7,500	5,270
Non cash activities:
Real Estate Owned, Transfer to Real Estate Owned	295	715
Other Significant Noncash Transaction, Value of Consideration Received	7,769	11,009
Affordable Housing Program Obligation, Period Increase (Decrease)	10,000	10,000
Payments to Acquire Other Investments	13	2,138
Consumer Portfolio Segment [Member]
Changes in assets and liabilities:
Increase in prepaid dealer premiums	(1,541)	(2,258)
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	$ 5,639	$ 2,423