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Stock-based Compensation (Tables)
12 Months Ended
Dec. 31, 2013
Stock-based Compensation [Abstract]  
Schedule of Restricted Stock Activity

Changes in restricted shares outstanding for the year ended December 31, 2013 were as follows:

          Weighted Average
                  Grant Date
    Shares   Fair Value
Balance at December 31, 2012   54,875     $ 31.61
       Granted   30,407     $ 42.21
       Vested   (26,633 )   $ 30.86
Balance at December 31, 2013   58,649     $ 37.45
Schedule of SARs Assumptions
  Year Ended December 31, 2013
Risk-free interest rate 1.29 %
Expected life 7 years  
Expected volatility 28.72 %
Expected dividend yield 1.71 %
Schedule of SARs Activity

Changes in SARs outstanding for the year ended December 31, 2013 were as follows:

  SARs         Weighted Average Exercise Price
Balance at December 31, 2012 351,881     $ 27.52
       Granted 85,943     $ 42.14
       Exercised (94,379 )   $ 24.67
Balance at December 31, 2013 343,445     $ 32.01
Exercisable at December 31, 2013 166,317     $ 26.58