XML 15 R55.htm IDEA: XBRL DOCUMENT v2.4.0.6
STOCK-BASED COMPENSATION - Summary of Additional Information Pertaining to Stock-Based Compensation from Stock Options and Stock Awards (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Feb. 28, 2013
Feb. 28, 2012
Stock options
   
Stock options:    
Weighted-average grant-date fair value (usd per share) $ 0.00 $ 9.82
Options granted (in shares) 0 172
Options exercised (in shares) (464) (1,008)
Total intrinsic value of stock options exercised $ 7,257 $ 17,259
Total unrecognized compensation expense 10,598 25,698
Weighted-average remaining recognition period 1 year 9 months 60 days 2 years 5 months 30 days
Stock awards
   
Stock options:    
Weighted-average remaining recognition period 1 year 9 months 30 days 2 years 1 month 6 days
Stock awards:    
Weighted-average grant-date fair value (usd per share) $ 22.16 $ 29.42
Stock awards granted (in shares) 971 785
Stock awards vested (in shares) (557) (447)
Total unrecognized compensation expense $ 105,396 $ 100,132