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Stock-Based Compensation (Tables)
 3 Months Ended
Feb. 28, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Outstanding and Exercisable Stock Options
The following table summarizes stock option transactions for the three months ended February 28, 2019:
 
Options
 
Weighted
Average Exercise
Price
Options outstanding at beginning of period
7,237,544

 
$
16.02

Granted
—

 
—

Exercised
(62,292
)
 
13.36

Cancelled
—

 
—

Options outstanding at end of period
7,175,252

 
$
16.04

Options exercisable at end of period
6,886,378

 
$
16.04