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SHARE-BASED COMPENSATION: Valuation Assumptions (Details)
12 Months Ended
Nov. 30, 2015
Nov. 30, 2014
Nov. 30, 2013
Employee Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Expected life (years) 5 years 10 months 7 days 5 years 5 months 17 days 5 years 7 months 6 days
Risk free interest rate 1.63% 1.74% 1.61%
Expected volatility 31.78% 33.40% 38.71%
Dividend yield 0.90% 0.80% 0.00%
Employee stock purchase plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Expected life (years) 3 months 3 months 3 months
Risk free interest rate     0.02%
Expected volatility     27.96%
Dividend yield     0.00%
Minimum [Member] | Employee stock purchase plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Risk free interest rate 0.00% 0.02%  
Expected volatility 29.68% 28.39%  
Dividend yield 0.16% 0.00%  
Maximum [Member] | Employee stock purchase plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Risk free interest rate 0.03% 0.07%  
Expected volatility 38.63% 37.40%  
Dividend yield 0.24% 0.02%