SHARE-BASED COMPENSATION PLANS (Details 2) (Stock options, USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2011	Feb. 28, 2010
ASSUMPTIONS USED FOR FAIR VALUE OF STOCK OPTION GRANTS
Range of risk free interest rates used, minimum (as a percent)	0.10%	0.60%	1.20%
Range of risk free interest rates used, maximum (as a percent)	0.90%	1.50%	1.70%
Expected dividend rate (as a percent)	0.00%	0.00%	0.00%
Weighted average volatility rate (as a percent)	51.40%	52.50%	50.00%
Range of expected volatility rates used, minimum (as a percent)	45.70%	51.40%	49.40%
Range of expected volatility rates used, maximum (as a percent)	55.30%	65.90%	53.00%
Expected terms used			3 years 4 months 24 days
Options
Outstanding at the beginning of the period (in shares)	871,000	2,510,000	2,899,000
Grants (in shares)	309,000	379,000	7,000
Exercises (in shares)	(248,000)	(1,907,000)	(318,000)
Forfeitures / expirations (in shares)	(68,000)	(111,000)	(78,000)
Outstanding at the end of the period (in shares)	864,000	871,000	2,510,000	2,899,000
Exercisable at the end of the period (in shares)	175,000
Weighted Average Exercise price (per share)
Outstanding at the beginning of the period (in dollars per share)	$ 26.26	$ 17.64	$ 18.13
Grants (in dollars per share)	$ 34.57	$ 32.71	$ 23.70
Exercises (in dollars per share)	$ (22.88)	$ (16.10)	$ (20.93)
Forfeitures / expirations (in dollars per share)	$ (30.23)	$ (27.91)	$ (22.98)
Outstanding at the end of the period (in dollars per share)	$ 29.89	$ 26.26	$ 17.64	$ 18.13
Exercisable at the end of the period (in dollars per share)	$ 25.03
Weighted Average Grant Date Fair Value (per share)
Outstanding at the beginning of the period (in dollars per share)	$ 10.31	$ 6.40	$ 6.57
Grants (in dollars per share)	$ 14.09	$ 13.13	$ 8.82
Outstanding at the end of the period (in dollars per share)	$ 11.98	$ 10.31	$ 6.40	$ 6.57
Exercisable at the end of the period (in dollars per share)	$ 9.46
Weighted Average Remaining Contractual Term
Outstanding at the beginning of the period	6 years 3 months 4 days	5 years 9 months 11 days	3 years 18 days	4 years 22 days
Outstanding at the end of the period	6 years 3 months 4 days	5 years 9 months 11 days	3 years 18 days	4 years 22 days
Exercisable at the end of the period	3 years 9 months 7 days
Intrinsic Value
Outstanding at the beginning of the period	$ 5,570	$ 26,054	$ 18,742
Exercises	2,634	36,912	2,285
Outstanding at the end of the period	6,209	5,570	26,054	18,742
Exercisable	$ 2,106
Non-Vested Options
Outstanding at the beginning of the period (in shares)	617,000	496,000	684,000
Grants (in shares)	309,000	379,000	7,000
Vested or forfeited (in shares)	(237,000)	(258,000)	(195,000)
Outstanding at the end of the period (in shares)	689,000	617,000	496,000	684,000
Weighted Average Grant Date Fair Value (per share)
Outstanding at the beginning of the period (in dollars per share)	$ 10.99	$ 8.42	$ 8.40
Grants (in dollars per share)	$ 14.09	$ 13.13	$ 8.82
Vested or forfeited (in dollars per share)	$ (10.29)	$ (9.19)	$ (8.36)
Outstanding at the end of the period (in dollars per share)	$ 12.62	$ 10.99	$ 8.42	$ 8.40
Minimum
ASSUMPTIONS USED FOR FAIR VALUE OF STOCK OPTION GRANTS
Expected terms used	4 years 1 month 6 days	4 years 1 month 6 days
Maximum
ASSUMPTIONS USED FOR FAIR VALUE OF STOCK OPTION GRANTS
Expected terms used	4 years 4 months 24 days	4 years 4 months 24 days