Stock-Based Compensation (Summary of Stock Option Activity) (Details) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Nov. 30, 2015 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, number of shares, beginning of year | shares	1,215
Granted, number of shares | shares	6
Exercised, number of shares | shares	(449)
Canceled, number of shares | shares	(38)
Options outstanding, number of shares, end of year | shares	734
Exercisable, November 30, 2015, number of shares | shares	728
Vested or expected to vest, November 30, 2015, number of shares | shares	734
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Options outstanding, weighted average exercise price, beginning of year (in dollars per share) | $ / shares	$ 21.19
Granted, weighted average exercise price (in dollars per share) | $ / shares	25.76
Exercised, weighted average exercise price (in dollars per share) | $ / shares	18.64
Canceled, weighted average exercise price (in dollars per share) | $ / shares	29.54
Options outstanding, weighted average exercise price, end of year (in dollars per share) | $ / shares	22.35
Exercisable, November 30, 2015, weighted average exercise price (in dollars per share) | $ / shares	22.31
Vested or expected to vest, November 30, 2015, weighted average exercise price (in dollars per share) | $ / shares	$ 22.35
Options Outstanding November 30, 2015, weighted average remaining contractual term (in years)	1 year 10 months 13 days
Exercisable, November 30, 2015 weighted average remaining contractual term (in years)	1 year 10 months 2 days
Vested or expected to vest, November 30, 2015, weighted average remaining contractual term (in years)	1 year 10 months 13 days
Options outstanding, November 30, 2015, aggregate intrinsic value | $	$ 2,288
Exercisable, November 30, 2015, aggregate intrinsic value | $	2,288
Vested or expected to vest, November 30, 2015, aggregate intrinsic value | $	$ 2,288