Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Interest Income
Interest and fees on loans	$ 47,894	$ 49,172	$ 96,150	$ 98,612
Interest on investment securities:
Taxable	2,587	2,225	5,152	4,549
Tax-exempt	1,465	1,393	2,950	2,872
Dividends on nonmarketable equity securities	380	368	510	491
Interest on deposits with unaffiliated banks and others	141	281	369	590
Total interest income	52,467	53,439	105,131	107,114
Interest Expense
Interest on deposits	5,659	7,551	11,761	15,429
Interest on short-term borrowings	108	151	212	301
Interest on FHLB advances	254	443	517	885
Total interest expense	6,021	8,145	12,490	16,615
Net Interest Income	46,446	45,294	92,641	90,499
Provision for loan losses	4,000	7,000	9,000	14,500
Net interest income after provision for loan losses	42,446	38,294	83,641	75,999
Noninterest Income
Service charges and fees on deposit accounts	5,013	4,628	9,518	8,724
Wealth management revenue	3,169	3,026	6,090	5,792
Other charges and fees for customer services	3,022	2,728	5,711	5,386
Mortgage banking revenue	1,417	499	2,602	1,563
Gain on sale of merchant card services			1,280
Other	661	21	730	209
Total noninterest income	13,282	10,902	25,931	21,674
Operating Expenses
Salaries, wages and employee benefits	20,539	18,068	41,108	36,393
Occupancy	2,973	3,099	6,127	6,437
Equipment and software	3,127	3,110	6,245	5,832
Other	8,898	9,136	18,352	20,140
Total operating expenses	35,537	33,413	71,832	68,802
Income before income taxes	20,191	15,783	37,740	28,871
Federal income tax expense	6,325	4,750	11,500	8,650
Net Income	$ 13,866	$ 11,033	$ 26,240	$ 20,221
Net Income Per Common Share:
Basic	$ 0.50	$ 0.40	$ 0.95	$ 0.74
Diluted	$ 0.50	$ 0.40	$ 0.95	$ 0.74
Cash Dividends Declared Per Common Share	$ 0.20	$ 0.20	$ 0.40	$ 0.40