STOCKHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accumulated other comprehensive loss	$ (2,979)	$ (4,885)
Net unrealized holding gain (loss) on AFS securities
Other accumulated comprehensive income / (loss), before tax:	10,719	6,299
Income taxes related to items of accumulated other comprehensive (loss) / income:	(4,007)	(2,339)
Net loss on effective cash flow hedging derivatives
Other accumulated comprehensive income / (loss), before tax:	(10,955)	(8,882)
Income taxes related to items of accumulated other comprehensive (loss) / income:	4,397	3,708
Net loss on terminated swap
Other accumulated comprehensive income / (loss), before tax:	(4,179)	(5,121)
Income taxes related to items of accumulated other comprehensive (loss) / income:	1,801	2,125
Net unrealized holding gain (loss) on pension plans
Other accumulated comprehensive income / (loss), before tax:	(1,265)	(1,130)
Income taxes related to items of accumulated other comprehensive (loss) / income:	$ 510	$ 455