Deferred Costs - Deferred Costs and Future Payment Commitments (Detail) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012
Deferred Costs [Abstract]
Prepaid expenses and other	$ 98,061	$ 100,282
Other assets	364,311	428,090
Deferred cost assets	462,372	528,372
Other current liabilities	(59,018)	(84,860)
Other liabilities	(104,127)	(149,190)
Deferred cost liabilities	(163,145)	(234,050)
Net deferred costs	$ 299,227	$ 294,322	$ 272,597	$ 306,217