Stock-Based Compensation (Activity Stock Options And Stock Awards) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of stock options on date exercised	$ 14,009	$ 9,601	$ 31,566
Total fair value of restricted stock awards, restricted stock units and deferred stock units on date vested	16,758	13,886	9,160
Deferred Stock Unit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of restricted stock awards, restricted stock units and deferred stock units on date vested	127	114	40
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of restricted stock awards, restricted stock units and deferred stock units on date vested	$ 16,631	$ 13,772	$ 9,120