STOCKHOLDERS' EQUITY (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	$ 6,579	$ (10,435)
Reclassification from accumulated other comprehensive income, net of tax
Other Comprehensive Loss before	2,472	3,330
Amounts Reclassified from Accumulated other comprehensive income	17	5,096
Total other comprehensive income	2,489	8,426
Balance at the end of the period	9,068	(2,009)
Net unrealized holding loss (gain) on AFS securities:
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	9,916	(5,776)
Reclassification from accumulated other comprehensive income, net of tax
Other Comprehensive Loss before	5,754	3,822
Amounts Reclassified from Accumulated other comprehensive income	(22)	(22)
Total other comprehensive income	5,732	3,800
Balance at the end of the period	15,648	(1,976)
Net loss on effective cash flow hedging derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	(1,969)	(1,366)
Reclassification from accumulated other comprehensive income, net of tax
Other Comprehensive Loss before	(2,329)	(492)
Amounts Reclassified from Accumulated other comprehensive income		3,193
Total other comprehensive income	(2,329)	2,701
Balance at the end of the period	(4,298)	1,335
Net loss on terminated swap
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period		(1,925)
Reclassification from accumulated other comprehensive income, net of tax
Amounts Reclassified from Accumulated other comprehensive income		1,925
Total other comprehensive income		1,925
Net unrealized holding loss on pension plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	(1,368)		(1,368)
Reclassification from accumulated other comprehensive income, net of tax
Other Comprehensive Loss before	(953)
Amounts Reclassified from Accumulated other comprehensive income	39
Total other comprehensive income	(914)
Balance at the end of the period	$ (2,282)	$ (1,368)	$ (1,368)