STOCKHOLDERS' EQUITY (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Tax effects	$ 2,898	$ 3,496
Accumulated other comprehensive loss	(3,462)	(4,885)
Net unrealized holding gain (loss) on AFS securities
Accumulated other comprehensive loss before tax	11,089	6,298
Tax effects	4,100	2,300
Net loss on effective cash flow hedging derivatives and terminated swap
Accumulated other comprehensive loss before tax	16,500	14,000
Tax effects	7,000	5,800
Net loss on effective cash flow hedging derivatives
Accumulated other comprehensive loss before tax	(12,102)	(8,882)
Net loss on terminated swap
Accumulated other comprehensive loss before tax	(4,415)	(5,121)
Net unrealized holding gain (loss) on pension plans
Accumulated other comprehensive loss before tax	$ (932)	$ (676)