CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest Income
Interest and fees on loans	$ 185,344	$ 172,819	$ 171,196
Interest and dividends on investments:
Taxable interest	27,919	26,807	28,767
Interest exempt from federal income taxes	1,498	997	311
Dividends	2,826	3,434	1,895
Interest on bank deposits	27	14	12
Total interest income	217,614	204,071	202,181
Interest Expense
Interest on deposits	7,523	7,474	12,453
Interest on short-term borrowings	8,076	5,018	2,449
Interest on subordinated debentures	2,635	2,329	2,292
Interest on other long-term debt	345	774	1,307
Total interest expense	18,579	15,595	18,501
Net Interest Income	199,035	188,476	183,680
Provision for credit losses	18,480	14,948	11,196
Net Interest Income after Provision for Credit Losses	180,555	173,528	172,484
Noninterest Income
Net securities gains (losses)	617	(153)	550
Trust income	5,366	5,834	6,000
Service charges on deposit accounts	15,869	15,319	15,661
Insurance and retail brokerage commissions	7,964	8,522	6,483
Income from bank owned life insurance	5,381	5,412	5,502
Gain on sale of mortgage loans	4,086	2,421	440
Card related interchange income	14,955	14,501	14,222
Derivative, Gain (Loss) on Derivative, Net	219	(274)	(345)
Swap Fee Income	2,359	847	511
Other income	6,372	7,041	7,279
Total noninterest income	64,599	61,325	60,859
Noninterest Expense
Salaries and employee benefits	87,125	89,161	87,223
Net occupancy	13,150	13,712	13,119
Furniture and equipment	11,624	10,737	17,812
Data processing	7,429	6,123	6,124
Advertising and promotion	2,601	2,638	2,953
Pennsylvania shares tax	3,825	4,693	3,776
Intangible amortization	547	605	631
Collection and repossession	2,250	2,826	2,754
Other professional fees and services	3,915	4,034	3,986
FDIC insurance	3,903	4,014	4,054
Gain (Loss) on Sale of Assets and Asset Impairment Charges	1,155	3,112	1,595
Loss on sale or write-down of assets	(1,411)	(1,855)	(4,556)
Litigation and operational losses	1,420	2,119	6,786
Conversion related	0	0	1,788
Merger and acquisition related	3,173	922	0
Other operating expenses	17,808	19,178	18,609
Total noninterest expense	159,925	163,874	171,210
Income before income taxes	85,229	70,979	62,133
Income tax provision	25,639	20,836	17,680
Net Income	$ 59,590	$ 50,143	$ 44,453
Average Shares Outstanding (in shares)	88,851,573	89,356,767	93,114,654
Average Shares Outstanding Assuming Dilution (in shares)	88,851,573	89,356,767	93,114,654
Per Share Data:
Basic Earnings Per Share (in dollars per share)	$ 0.67	$ 0.56	$ 0.48
Diluted Earnings Per Share (in dollars per share)	0.67	0.56	0.48
Cash Dividends Declared per Common Share (in dollars per share)	$ 0.28	$ 0.28	$ 0.28