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STOCK PLANS AND SHARE-BASED COMPENSATION (Fair Value Assumptions) (Details) - Employee Stock [Member] - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Risk-free interest rates 0.00% 0.00% 0.07% 0.07%
Expected volatility rates 0.00% 0.00% 34.00% 30.00%
Expected dividend yield 0.00% 0.00% 0.89% 0.66%
Expected term of stock options/purchase right (in years)     6 months 6 months
Weighted-average estimated fair value of purchase rights $ 0.00 $ 0.00 $ 12.89 $ 13.31