Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest Income
Interest and Fees on Loans and Leases	$ 107,628	$ 110,401	$ 215,838	$ 218,912
Income on Investment Securities
Available-for-Sale	14,576	15,072	31,287	28,504
Held-to-Maturity	16,723	22,149	35,975	44,070
Deposits	1	9	10	24
Funds Sold	92	730	638	2,174
Other	125	210	343	529
Total Interest Income	139,145	148,571	284,091	294,213
Interest Expense
Deposits	7,954	18,628	22,214	33,912
Securities Sold Under Agreements to Repurchase	4,020	4,623	8,045	9,194
Funds Purchased	18	512	90	669
Short-Term Borrowings	22	1	61	37
Other Debt	440	710	1,024	1,467
Total Interest Expense	12,454	24,474	31,434	45,279
Net Interest Income	126,691	124,097	252,657	248,934
Provision for Credit Losses	40,400	4,000	74,000	7,000
Net Interest Income After Provision for Credit Losses	86,291	120,097	178,657	241,934
Noninterest Income
Trust and Asset Management	10,550	11,385	21,465	22,146
Mortgage Banking	4,278	3,336	6,973	5,623
Service Charges on Deposit Accounts	5,097	7,283	12,548	14,647
Fees, Exchange, and Other Service Charges	9,417	14,252	22,617	28,460
Investment Securities Gains (Losses), Net	13,216	(776)	12,246	(1,611)
Annuity and Insurance	883	1,806	1,811	4,384
Bank-Owned Life Insurance	1,649	1,779	3,229	3,489
Other	6,178	6,385	16,528	11,991
Total Noninterest Income	51,268	45,450	97,417	89,129
Noninterest Expense
Salaries and Benefits	50,715	53,511	105,178	110,097
Net Occupancy	8,761	8,579	17,716	16,173
Net Equipment	8,195	6,895	16,651	13,728
Data Processing	4,416	4,727	9,204	9,253
Professional Fees	3,061	2,177	6,269	4,630
FDIC Insurance	1,558	1,290	3,014	2,559
Other	12,186	15,546	27,172	29,342
Total Noninterest Expense	88,892	92,725	185,204	185,782
Income Before Provision for Income Taxes	48,667	72,822	90,870	145,281
Provision for Income Taxes	9,759	15,903	17,220	29,563
Net Income	$ 38,908	$ 56,919	$ 73,650	$ 115,718
Basic Earnings Per Share (in dollars per share)	$ 0.98	$ 1.40	$ 1.86	$ 2.84
Diluted Earnings Per Share (in dollars per share)	0.98	1.40	1.85	2.82
Dividends Declared Per Share (in dollars per share)	$ 0.67	$ 0.65	$ 1.34	$ 1.27
Basic Weighted Average Shares (in shares)	39,703,735	40,541,594	39,692,695	40,738,772
Diluted Weighted Average Shares (in shares)	39,832,475	40,769,767	39,873,334	40,988,001