Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
INTEREST INCOME
Loans, including fees	$ 158,804	$ 186,001	$ 493,256	$ 558,055
Investment securities:
Taxable	13,150	15,565	44,615	46,935
Tax-exempt	5,449	3,673	15,481	10,222
Loans held for sale	728	466	1,557	1,056
Other interest income	1,028	2,709	4,324	6,879
Total Interest Income	179,159	208,414	559,233	623,147
INTEREST EXPENSE
Deposits	14,631	35,737	58,189	97,974
Short-term borrowings	370	4,156	4,960	12,200
Long-term borrowings	10,042	7,260	28,468	23,854
Total Interest Expense	25,043	47,153	91,617	134,028
Net Interest Income	154,116	161,260	467,616	489,119
Provision for credit losses	7,080	2,170	70,680	12,295
Net Interest Income After Provision for Credit Losses	147,036	159,090	396,936	476,824
NON-INTEREST INCOME
Non-interest income before investment securities gains	63,246	55,321	170,761	156,147
Investment securities gains, net	2	4,492	3,053	4,733
Total Non-Interest Income	63,248	59,813	173,814	160,879
NON-INTEREST EXPENSE
Salaries and employee benefits	79,227	78,211	240,467	234,959
Net occupancy	13,221	12,368	39,851	39,746
Data processing and software	12,285	11,590	36,123	33,211
Other outside services	7,617	12,163	23,098	31,774
Professional fees	2,879	3,331	10,412	10,261
Equipment	3,711	3,459	10,322	10,100
State taxes	2,692	2,523	8,583	7,005
FDIC insurance	1,578	239	6,519	5,603
Marketing	1,147	3,322	4,029	8,345
Amortization of TCI	1,694	1,533	4,594	4,516
Intangible amortization	132	1,071	397	1,285
Prepayment penalty on FHLB advances	0	4,326	2,878	4,326
Other	12,962	12,634	37,431	37,631
Total Non-Interest Expense	139,147	146,770	424,705	428,762
Income Before Income Taxes	71,137	72,133	146,045	208,941
Income taxes	9,529	10,025	18,832	30,391
Net Income	$ 61,607	$ 62,108	$ 127,213	$ 178,550
PER SHARE:
Net Income (Basic) (in dollars per share)	$ 0.38	$ 0.38	$ 0.78	$ 1.06
Net Income (Diluted) (in dollars per share)	0.38	0.37	0.78	1.06
Cash Dividends (in dollars per share)	$ 0.13	$ 0.13	$ 0.39	$ 0.39
Investment management and trust services
NON-INTEREST INCOME
Non-interest income before investment securities gains	$ 14,943	$ 13,867	$ 43,405	$ 41,259
Other service charges and fees
NON-INTEREST INCOME
Non-interest income before investment securities gains	18,311	18,788	53,477	53,055
Service charges on deposit accounts
NON-INTEREST INCOME
Non-interest income before investment securities gains	10,423	13,333	30,800	37,077
Mortgage banking income
NON-INTEREST INCOME
Non-interest income before investment securities gains	16,801	6,658	32,998	18,023
Other
NON-INTEREST INCOME
Non-interest income before investment securities gains	$ 2,769	$ 2,675	$ 10,080	$ 6,733