BANK PREMISES AND EQUIPMENT (Summary of Bank Premises and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Total	$ 136,812	$ 136,907
Less accumulated depreciation and amortization	53,997	51,498
Bank premises and equipment, net	82,815	85,409
Land [Member]
Property, Plant and Equipment [Line Items]
Total	23,652	24,493
Land Improvements and Buildings [Member]
Property, Plant and Equipment [Line Items]
Total	62,329	62,721
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total	5,313	5,290
Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total	36,133	37,707
Equipment Lease [Member]
Property, Plant and Equipment [Line Items]
Total	62	62
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Total	$ 9,323	$ 6,634