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Stock Compensation Plans (Details) (USD $)
6 Months Ended
Jun. 30, 2014
Stock options granted:  
Weighted-average risk-free interest rate 1.90%
Weighted-average dividend yield 3.10%
Volatility 33.80%
Expected term (in years) 6 years 1 month 2 days
Weighted-average grant date fair value $ 3.95