GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) (USD $)	1 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Estimated aggregate amortization expense
2014		$ 5,300,000
2015		4,800,000
2016		3,000,000
2017		1,600,000
2018		1,300,000
Gross amount of CDI and CRI:
Balance, beginning of period		45,412,000	67,100,000	76,319,000
Additions due to acquisitions		7,927,000	4,924,000
Fully amortized portion		(4,376,000)	(20,746,000)	(9,219,000)
Removal due to branch sale			(5,866,000)
Balance, end of period		48,963,000	45,412,000	67,100,000
Accumulated Amortization:
Balance, beginning of period		(30,689,000)	(49,685,000)	(50,476,000)
Amortization		(5,402,000)	(6,326,000)	(8,428,000)
Fully amortized portion		4,376,000	20,746,000	9,219,000
Removal due to branch sale			4,576,000
Balance, end of period		(31,715,000)	(30,689,000)	(49,685,000)
Finite lived intangible assets, net
Net CDI and CRI, end of year		17,248,000	14,723,000	17,415,000
Additional information
Amount of CDI written off related to previously acquired deposits that were sold in connection with the sale of branches	$ 1,300,000