Financial Instruments and Risk Management (Details 3) (Designated as cash flow hedging instruments) In Thousands, unless otherwise specified	Feb. 28, 2014 Accrued Expenses and Other Current Liabilities USD ($)	Feb. 28, 2014 Foreign currency contracts Euros Accrued Expenses and Other Current Liabilities USD ($)	Nov. 30, 2014 Foreign currency contracts Pounds Prepaid Expenses and Other Current Assets USD ($)	Feb. 28, 2014 Foreign currency contracts Pounds Accrued Expenses and Other Current Liabilities USD ($)	Feb. 28, 2014 Foreign currency contracts Sell Euros EUR (€)	Nov. 30, 2014 Foreign currency contracts Sell Pounds GBP (£)	Feb. 28, 2014 Foreign currency contracts Sell Pounds GBP (£)	Feb. 28, 2014 Interest rate swaps USD ($)	Feb. 28, 2014 Interest rate swaps Accrued Expenses and Other Current Liabilities USD ($)
Fair values of derivative instruments in the consolidated balance sheet
Notional Amount					€ 2,850	£ 1,500	£ 4,250	$ 75,000
Derivative assets			162
Derivative liabilities	$ 1,596	$ 89		$ 280					$ 1,227