Quarterly report pursuant to Section 13 or 15(d)

PENSION AND POST RETIREMENT BENEFIT PLANS (Tables)

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PENSION AND POST RETIREMENT BENEFIT PLANS (Tables)
 9 Months Ended
Sep. 30, 2016
Pension and Other Postretirement Benefit Expense [Abstract]  
Schedule of Net Pension Benefit Gain
Components of Net Pension Benefit Gain                        
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
(in thousands)   2016     2015     2016     2015  
Interest and service cost   $ 2,350     $ 2,250     $ 7,050     $ 6,750  
Expected return on plan assets     (3,305 )     (3,197 )     (9,915 )     (9,591 )
Amortization of net loss     816       940       2,448       2,820  
Net periodic benefit   $ (139 )   $ (7 )   $ (417 )   $ (21 )