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Long -Term leases and Commitments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 29, 2012	Feb. 28, 2011	Feb. 28, 2010
Rental expense under operating leases
Gross rentals	$ 30,641	$ 33,452	$ 47,473
Sublease rentals	(11,332)	(16,387)	(24,891)
Net rental expense	$ 19,309	$ 17,065	$ 22,582

This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes.

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