Stock-Based Compensation (Outstanding and Exercisable Stock Options) (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Aug. 31, 2021
Options
Options outstanding at beginning of period, options (in shares)	2,462,714
Granted, options (in shares)	0
Exercised, options (in shares)	(228,651)
Cancelled, options (in shares)	0
Options outstanding at end of period, options (in shares)	2,234,063
Options exercisable at end of period (in shares)	2,234,063
Weighted Average Exercise Price in dollars per share
Options outstanding at beginning of period, weighted average exercise price (in dollars per share)	$ 15.32
Granted, weighted average exercise price (in dollars per share)	0
Exercised, weighted average exercise price (in dollars per share)	15.35
Cancelled, weighted average exercise price (in dollars per share)	0
Options outstanding at end of period, weighted average exercise price (in dollars per share)	15.32
Options exercisable at end of period (in dollars per share)	$ 15.32
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	$ 61.9
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	3 years 10 months 24 days