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Fair Values of Derivative Instruments (Detail) (Derivatives designated as hedging instruments, USD $) In Thousands, unless otherwise specified	Nov. 30, 2013	Feb. 28, 2013
Derivatives, Fair Value [Line Items]
Liability Derivative Fair Value	$ 106	$ 107
Interest Rate Swap Agreements (Long-Term Portion)
Derivatives, Fair Value [Line Items]
Liability Derivative Fair Value	$ 106	$ 107

Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

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