INVESTMENTS IN DEBT AND EQUITY SECURITIES (Textual) (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Jun. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Proceeds from sales of investment securities available for sale			$ 143,675,000	$ 315,238,000	$ 283,713,000
Proceeds from calls of investment securities			51,200,000	277,200,000	56,000,000
Securities pledged as collateral			283,700,000	257,600,000
Reclassification of investment securities from available for sale to held to maturity	242,540,000	729,142,000	242,540,000	729,142,000	0
Gross unrealized gain on securities reclassified from available-for-sale to held-to-maturity	5,000,000	11,700,000
State and political subdivisions
Other than Temporary Impairment Losses, Investments, Held-to-maturity Securities	$ 407,000
Residential mortgage-backed [Member]
Number of available-for-sale securities in unrealized loss positions for twelve months or more			11	9
Corporate notes
Number of available-for-sale securities in unrealized loss positions for twelve months or more			1	6