Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
INTEREST INCOME
Loans, including fees	$ 148,440	$ 134,643	$ 291,006	$ 268,722
Investment securities:
Taxable	11,474	11,159	23,388	23,162
Tax-exempt	2,856	2,320	5,705	4,360
Dividends	109	135	238	295
Loans held for sale	201	188	388	319
Other interest income	801	864	1,643	1,762
Total Interest Income	163,881	149,309	322,368	298,620
INTEREST EXPENSE
Deposits	12,884	10,887	24,685	21,614
Short-term borrowings	974	217	1,829	485
Federal Home Loan Bank advances and other long-term debt	8,460	9,289	16,712	18,551
Total Interest Expense	22,318	20,393	43,226	40,650
Net Interest Income	141,563	128,916	279,142	257,970
Provision for credit losses	6,700	2,511	11,500	4,041
Net Interest Income After Provision for Credit Losses	134,863	126,405	267,642	253,929
NON-INTEREST INCOME
Other service charges and fees	14,342	12,983	26,779	23,733
Service charges on deposit accounts	12,914	12,896	25,314	25,454
Investment management and trust services	12,132	11,247	23,940	22,235
Mortgage banking income	6,141	3,897	10,737	7,927
Investment securities gains, net	1,436	76	2,542	1,023
Other	5,406	5,038	9,732	8,902
Total Non-Interest Income	52,371	46,137	99,044	89,274
NON-INTEREST EXPENSE
Salaries and employee benefits	74,496	70,029	143,732	139,401
Net occupancy expense	12,316	11,811	24,979	24,031
Other outside services	7,708	5,508	13,254	11,564
Data processing	4,619	5,476	8,905	10,876
Software	4,435	3,953	9,128	7,874
Amortization of tax credit investments	3,151	0	4,149	0
Equipment expense	3,034	2,872	6,393	6,243
Professional fees	2,931	3,353	5,668	5,686
FDIC insurance expense	2,366	2,960	4,424	5,909
Marketing	2,234	1,916	4,220	3,540
Other	15,405	13,759	30,118	26,926
Total Non-Interest Expense	132,695	121,637	254,970	242,050
Income Before Income Taxes	54,539	50,905	111,716	101,153
Income taxes	9,072	11,155	22,869	23,146
Net Income	$ 45,467	$ 39,750	$ 88,847	$ 78,007
PER SHARE:
Net Income (Basic) (in dollars per share)	$ 0.26	$ 0.23	$ 0.51	$ 0.45
Net Income (Diluted) (in dollars per share)	0.26	0.23	0.51	0.45
Cash Dividends (in dollars per share)	$ 0.11	$ 0.10	$ 0.22	$ 0.19