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Employee Benefit Plans (Details 1) (Pension Plan, USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Pension Plan
   
Other assets - prepaid pension asset $ 1,232 $ 671
Other liabilities (3,380) (16,289)
[DefinedBenefitPlanAmountsRecognizedInBalanceSheet] $ (2,148) $ (15,618)