Annual report pursuant to Section 13 and 15(d)

PREMISES AND EQUIPMENT (Summary of Bank Premises and Equipment) (Details)

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PREMISES AND EQUIPMENT (Summary of Bank Premises and Equipment) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment [Line Items]    
Total $ 194,039 $ 194,016
Less accumulated depreciation and amortization 68,011 58,769
Bank premises and equipment, net 126,028 135,247
Land [Member]    
Property, Plant and Equipment [Line Items]    
Total 29,839 31,072
Land Improvements and Buildings [Member]    
Property, Plant and Equipment [Line Items]    
Total 96,943 98,259
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Total 8,313 7,950
Furniture and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Total 49,914 47,350
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Total $ 9,030 $ 9,385