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STOCK-BASED COMPENSATION (Summary Of Weighted-Average Assumptions) (Details)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Dividend yield 0.00% 0.00% 0.00%
Expected volatility 30.00% 28.00% 30.00%
Risk free interest rate 1.33% 2.47% 2.82%
Expected life of option from grant date, in years 8 years 8 years 8 years