Quarterly report pursuant to Section 13 or 15(d)

PENSION AND POST RETIREMENT BENEFIT PLANS (Details)

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PENSION AND POST RETIREMENT BENEFIT PLANS (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Components of net periodic pension benefit Gain        
Interest and service cost $ 2,375 $ 2,166 $ 7,125 $ 6,498
Expected return on plan assets (3,108) (2,897) (9,324) (8,691)
Amortization of net loss 610 977 1,830 2,931
Net periodic loss/(benefit) $ (123) $ 246 $ (369) $ 738