STOCK-BASED COMPENSATION - Summary of Additional Information Pertaining to Stock-Based Compensation from Stock Options and Stock Awards (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2013	May 31, 2012
Stock options:
Weighted-average grant-date fair value (usd per share)	$ 7.73	$ 11.60
Options granted (in shares)	18	1
Options exercised (in shares)	(524)	(629)
Total intrinsic value of stock options exercised	$ 6,798	$ 14,605
Total unrecognized compensation expense at period-end	9,080	22,927	9,080	22,927
Stock awards:
Weighted-average grant-date fair value (usd per share)	$ 21.86	$ 32.37
Stock awards granted (in shares)	1,428	179
Stock awards vested (in shares)	(917)	(1,241)
Total unrecognized compensation expense at period-end	116,882	85,540	116,882	85,540
Stock options
Stock options:
Weighted-average grant-date fair value (usd per share)			$ 7.73	$ 9.83
Options granted (in shares)			18	173
Options exercised (in shares)			(988)	(1,673)
Total intrinsic value of stock options exercised			14,054	31,864
Total unrecognized compensation expense at period-end	9,080	22,927	9,080	22,927
Weighted-average remaining recognition period at period-end	1 year 8 months 40 days	2 years 4 months 30 days	1 year 8 months 40 days	2 years 4 months 30 days
Stock awards
Stock options:
Weighted-average remaining recognition period at period-end	2 years 0 months 40 days	2 years 0 months 6 days	2 years 0 months 40 days	2 years 0 months 6 days
Stock awards:
Weighted-average grant-date fair value (usd per share)			$ 22.17	$ 29.99
Stock awards granted (in shares)			2,747	964
Stock awards vested (in shares)			(1,474)	(1,688)
Total unrecognized compensation expense at period-end	$ 116,882	$ 84,540	$ 116,882	$ 84,540