Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
INTEREST INCOME
Loans and leases, including fees	$ 188,310	$ 167,825	$ 372,054	$ 327,961
Investment securities:
Taxable	15,935	13,885	31,370	27,083
Tax-exempt	3,271	2,933	6,550	5,898
Loans held for sale	350	284	590	500
Other interest income	2,168	1,243	4,170	2,415
Total Interest Income	210,034	186,170	414,734	363,857
INTEREST EXPENSE
Deposits	32,548	19,284	62,237	35,734
Short-term borrowings	4,462	3,036	8,044	5,077
Federal Home Loan Bank advances and long-term debt	8,480	7,783	16,594	15,661
Total Interest Expense	45,490	30,103	86,875	56,472
Net Interest Income	164,544	156,067	327,859	307,385
Provision for credit losses	5,025	33,117	10,125	37,087
Net Interest Income After Provision for Credit Losses	159,519	122,950	317,734	270,298
NON-INTEREST INCOME
Non-interest income before investment securities gains	54,139	49,090	100,825	94,946
Investment securities gains, net	176	4	241	23
Total Non-Interest Income	54,315	49,094	101,066	94,969
NON-INTEREST EXPENSE
Salaries and employee benefits	78,991	74,919	156,748	150,687
Net occupancy expense	14,469	12,760	27,378	26,392
Data processing and software	11,268	10,453	21,621	20,926
Other outside services	11,259	7,568	19,611	15,692
Amortization of tax credit investments	1,492	1,637	2,983	3,274
Intangible amortization	107	0	214	0
Professional fees	2,970	2,372	6,930	7,188
Marketing	3,299	3,434	6,641	6,968
FDIC insurance expense	2,755	2,663	5,364	5,616
Taxes, Other	2,480	2,454	4,482	4,756
Marketing	2,863	2,335	5,023	4,585
Other	12,215	12,750	24,997	23,922
Total Non-Interest Expense	144,168	133,345	281,992	270,006
Income Before Income Taxes	69,666	38,699	136,808	95,261
Income taxes	9,887	3,502	20,366	10,584
Net Income	$ 59,779	$ 35,197	$ 116,442	$ 84,677
PER SHARE:
Net Income (Basic) (in dollars per share)	$ 0.36	$ 0.20	$ 0.69	$ 0.48
Net Income (Diluted) (in dollars per share)	0.35	0.20	0.68	0.48
Cash Dividends (in dollars per share)	$ 0.13	$ 0.12	$ 0.26	$ 0.24
Investment management and trust services
NON-INTEREST INCOME
Non-interest income before investment securities gains	$ 14,153	$ 12,803	$ 27,392	$ 25,674
Other service charges and fees
NON-INTEREST INCOME
Non-interest income before investment securities gains	18,442	16,431	33,205	30,388
Service charges on deposit accounts
NON-INTEREST INCOME
Non-interest income before investment securities gains	12,367	11,931	23,744	23,340
Mortgage banking income
NON-INTEREST INCOME
Non-interest income before investment securities gains	6,593	5,163	11,365	9,356
Other income
NON-INTEREST INCOME
Non-interest income before investment securities gains	$ 2,584	$ 2,762	$ 5,119	$ 6,188