STOCKHOLDERS' EQUITY (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Net unrealized holding (loss) gain on AFS securities	Jun. 30, 2012 Net unrealized holding (loss) gain on AFS securities	Jun. 30, 2013 Net unrealized holding (loss) gain on AFS securities	Jun. 30, 2012 Net unrealized holding (loss) gain on AFS securities	Jun. 30, 2013 Net loss on cash flow hedging derivatives	Jun. 30, 2012 Net loss on cash flow hedging derivatives	Jun. 30, 2013 Net loss on cash flow hedging derivatives	Jun. 30, 2012 Net loss on cash flow hedging derivatives	Jun. 30, 2013 Net gain (loss) on terminated swap	Jun. 30, 2012 Net gain (loss) on terminated swap	Jun. 30, 2013 Net gain (loss) on terminated swap	Jun. 30, 2012 Net gain (loss) on terminated swap	Jun. 30, 2012 Net unrealized holding loss on pension plans	Jun. 30, 2012 Net unrealized holding loss on pension plans	Jun. 30, 2013 Net unrealized holding loss on pension plans	Mar. 31, 2013 Net unrealized holding loss on pension plans	Dec. 31, 2012 Net unrealized holding loss on pension plans
Accumulated other comprehensive income
Balance at the beginning of the period	$ (3,270)	$ (6,568)	$ (5,681)	$ (8,381)	$ 11,451	$ 7,592	$ 10,718	$ 6,299	$ (9,512)	$ (8,599)	$ (10,955)	$ (8,883)	$ (3,944)	$ (4,885)	$ (4,179)	$ (5,121)	$ (676)	$ (676)	$ (1,265)	$ (1,265)	$ (1,265)
Reclassification from accumulated other comprehensive income, before tax
Other Comprehensive Loss Before reclassifications	(9,780)	(2,832)	(9,214)	(2,708)	(14,436)	1,401	(13,703)	2,694	4,656	(3,977)	4,489	(5,146)					(256)	(256)
Amounts Reclassified from Accumulated other comprehensive income	2,740	1,717	(4,585)	3,406	1,005	(7)	1,005	(7)	1,499	1,489	3,109	2,942	236	235	471	471
Total Other Comprehensive Income	(7,040)	(1,115)	(4,629)	698	(13,431)	1,394	(12,698)	2,687	6,155	(2,488)	7,598	(2,204)	236	235	471	471	(256)	(256)
Balance at the end of the period	$ (10,310)	$ (7,683)	$ (10,310)	$ (7,683)	$ (1,980)	$ 8,986	$ (1,980)	$ 8,986	$ (3,357)	$ (11,087)	$ (3,357)	$ (11,087)	$ (3,708)	$ (4,650)	$ (3,708)	$ (4,650)	$ (932)	$ (932)	$ (1,265)	$ (1,265)	$ (1,265)