Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Schedule Of Weighted Average Assumptions) (Details)

v2.4.0.8
Stock-Based Compensation (Schedule Of Weighted Average Assumptions) (Details) (Stock Option [Member], USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Stock Option [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected term, years 4 years 4 months 28 days 4 years 5 months 26 days 4 years 8 months 12 days 4 years 8 months 16 days
Expected stock price volatility 27.24% 26.87% 27.65% 30.63%
Risk-free interest rate 1.32% 1.01% 1.22% 0.70%
Expected dividend yield 1.49% 1.38% 1.34% 1.62%
Weighted average grant date fair value (in dollars per share) $ 7.84 $ 6.52 $ 8.72 $ 6.17