Financial Assets and Liabilities That Are Accounted For At Fair Value on Recurring Basis (Detail) (Fair Value, Measurements, Recurring, USD $) In Thousands, unless otherwise specified	Feb. 28, 2013
Fair Value Assets Liabilities Measured On Recurring Basis [Line Items]
Net liabilities	$ 1,887
Euro denominated long-term debt
Fair Value Assets Liabilities Measured On Recurring Basis [Line Items]
Net liabilities	1,887
Significant Other Observable Inputs (Level 2)
Fair Value Assets Liabilities Measured On Recurring Basis [Line Items]
Net liabilities	1,887
Significant Other Observable Inputs (Level 2) | Euro denominated long-term debt
Fair Value Assets Liabilities Measured On Recurring Basis [Line Items]
Net liabilities	$ 1,887