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Condensed Consolidated Statements of Income Parenthetical (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Stock Dividend 2.50%  
Average common shares outstanding 15,969 [1] 16,025 [1]
Cash dividends declared $ 4,792 $ 4,700
Scenario, Previously Reported [Member]
   
Average common shares outstanding   15,634
[1] (A)Adjusted for the declaration of a two and a half percent (2.5%) stock dividend in 2013, shares related to which were issued in February 2014. Prior to the adjustment, the average common shares outstanding were 15,634 for the three months ended March 31, 2013.