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STOCK-BASED COMPENSATION (Tables)
 9 Months Ended
Aug. 31, 2013
Share-based Compensation [Abstract]  
Summary of Additional Information Pertaining to Stock-Based Compensation from Stock Options and Stock Awards
The following table summarizes additional information pertaining to our stock-based compensation from stock options and stock awards which are comprised of restricted stock, restricted stock units and performance-based restricted stock units (in thousands, except grant-date fair value and recognition period):
 
 
 
Three Months Ended
August 31,
 
Nine Months Ended
August 31,
 
 
2013
 
2012
 
2013
 
2012
Stock options:
 
 
 
 
 
 
 
 
Weighted-average grant-date fair value
 
$
8.24

 
$
10.96

 
$
7.84

 
$
9.93

Options granted
 
5

 
17

 
23

 
189

Options exercised
 
(1,395
)
 
(697
)
 
(2,382
)
 
(2,334
)
Total intrinsic value of stock options exercised
 
$
20,059

 
$
14,627

 
$
36,114

 
$
46,491

Total unrecognized compensation expense at period-end
 
$
7,623

 
$
20,723

 
$
7,623

 
$
20,723

Weighted-average remaining recognition period at period-end
 
1.7 years

 
2.3 years

 
1.7 years

 
2.3 years

Stock awards:
 
 
 
 
 
 
 
 
Weighted-average grant-date fair value
 
$
23.67

 
$
27.32

 
$
22.49

 
$
28.29

Stock awards granted
 
214

 
1,638

 
2,961

 
2,602

Stock awards vested
 
(361
)
 
(241
)
 
(1,835
)
 
(1,929
)
Total unrecognized compensation expense at period-end
 
$
88,184

 
$
115,794

 
$
88,184

 
$
115,794

Weighted-average remaining recognition period at period-end
 
1.8 years

 
1.9 years

 
1.8 years

 
1.9 years