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ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
ACCUMULATED OTHER COMPREHENSIVE INCOME    
Net unrealized gain on available for sale investment securities $ 30,289 $ 24,011
Net unrealized loss on derivatives (11,493) (10,559)
Pension adjustments (9,523) (11,288)
Accumulated other comprehensive income, net of tax $ 9,273 $ 2,164