Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Interest and Fee Income:
Loans	$ 26,180	$ 33,745	$ 53,579	$ 69,401
Investment securities available for sale	5,532	4,938	10,868	9,726
Investment securities held to maturity	7,557	8,218	15,287	16,072
Total Interest and Fee Income	39,269	46,901	79,734	95,199
Interest Expense:
Deposits	847	1,107	1,746	2,294
Short-term borrowed funds	26	21	37	48
Term repurchase agreement	25	24	49	49
Federal Home Loan Bank advances	120	119	238	239
Debt financing	201	201	401	401
Total Interest Expense	1,219	1,472	2,471	3,031
Net Interest Income	38,050	45,429	77,263	92,168
Provision for Loan Losses	1,800	2,800	4,600	5,600
Net Interest Income After Provision For Loan Losses	36,250	42,629	72,663	86,568
Noninterest Income:
Service charges on deposit accounts	6,452	7,027	12,994	14,122
Merchant processing services	2,413	2,529	4,822	4,922
Debit card fees	1,478	1,345	2,836	2,508
ATM processing fees	721	932	1,426	1,865
Trust fees	585	497	1,153	986
Financial services commissions	284	194	464	365
Loss on sale of securities		(1,287)		(1,287)
Other	2,351	2,296	4,867	4,721
Total Noninterest Income	14,284	13,533	28,562	28,202
Noninterest Expense:
Salaries and related benefits	14,064	14,494	28,467	29,540
Occupancy	3,638	3,775	7,524	7,709
Outsourced data processing services	2,140	2,078	4,297	4,161
Amortization of identifiable intangibles	1,165	1,339	2,384	2,741
Furniture and equipment	1,021	1,041	1,901	1,892
Professional fees	745	902	1,380	1,669
Courier service	737	793	1,478	1,578
Other real estate owned	278	3	612	233
Other	4,404	4,924	8,826	9,860
Total Noninterest Expense	28,192	29,349	56,869	59,383
Income Before Income Taxes	22,342	26,813	44,356	55,387
Provision for income taxes	5,230	5,849	9,973	13,418
Net Income	$ 17,112	$ 20,964	$ 34,383	$ 41,969
Average Common Shares Outstanding (in Shares)	26,890	27,744	27,017	27,897
Diluted Average Common Shares Outstanding (in Shares)	26,898	27,790	27,027	27,951
Per Common Share Data:
Basic earnings (in Dollars per share)	$ 0.64	$ 0.76	$ 1.27	$ 1.50
Diluted earnings (in Dollars per share)	$ 0.64	$ 0.75	$ 1.27	$ 1.50
Dividends paid (in Dollars per share)	$ 0.37	$ 0.37	$ 0.74	$ 0.74