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Pension and Other Post Retirement Benefit Plans - Schedule of Net Periodic Benefit Costs (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]    
Service Cost $ 131 $ 161
Interest Cost 2,670 2,990
Expected Return on Plan Assets (4,265) (4,216)
Amortization of Prior Service Costs 25 25
Amortization of Net Loss 2,131 2,207
Net Periodic Pension Cost $ 692 $ 1,167