PREMISES AND EQUIPMENT (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
PREMISES AND EQUIPMENT
Total premises and equipment	$ 83,594	$ 80,725
Less: Accumulated depreciation and amortization	50,686	47,528
Premises and equipment, net	32,908	33,197
Depreciation expense	5,311	5,372	5,738
Land
PREMISES AND EQUIPMENT
Total premises and equipment	3,967	3,967
Buildings and improvements
PREMISES AND EQUIPMENT
Total premises and equipment	28,968	27,074
Furniture, fixtures and equipment
PREMISES AND EQUIPMENT
Total premises and equipment	35,011	37,460
Leasehold improvements
PREMISES AND EQUIPMENT
Total premises and equipment	15,475	12,118
Construction in progress
PREMISES AND EQUIPMENT
Total premises and equipment	$ 173	$ 106