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Pension and Postretirement Benefit Plans (Net Periodic Benefit Cost of the Pension Plan and Postretirement Benefit Plan) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Pension Plan [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 0 $ 0 $ 0
Interest cost 0 0 101
Expected return on plan assets 0 0 (83)
Amortization of prior service costs 0 0 0
Amortization of transition obligation 0 0 0
Recognized net loss due to settlement 0 0 141
Amortization of net actuarial loss 0 0 572
Net periodic benefit cost 0 0 731
Postretirement Benefits Plan [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 0 0 0
Interest cost 4 5 6
Expected return on plan assets 0 0 0
Amortization of prior service costs 0 0 0
Amortization of transition obligation 0 0 0
Recognized net loss due to settlement 0 0 0
Amortization of net actuarial loss (7) (8) (11)
Net periodic benefit cost $ (3) $ (3) $ (5)