FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Derivative FV (Details) € in Thousands, £ in Thousands, CAD in Thousands, AUD in Thousands, $ in Thousands	Feb. 29, 2016 GBP (£)	Feb. 29, 2016 EUR (€)	Feb. 29, 2016 CAD	Feb. 29, 2016 AUD	Feb. 29, 2016 USD ($)	Feb. 28, 2015 GBP (£)	Feb. 28, 2015 EUR (€)	Feb. 28, 2015 USD ($)
Fair values of derivative instruments in the consolidated balance sheet
Long-term debt					$ 623,907			$ 433,207
3.90% unsecured Senior Notes payable
Fair values of derivative instruments in the consolidated balance sheet
Long-term debt					$ 40,000			60,000
Interest rate (as a percent)	3.90%	3.90%	3.90%	3.90%	3.90%
Prepaid Expenses and Other Current Assets
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					$ 1,166
Other Assets
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					206
Accrued Expenses and Other Current Liability
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					495
Other Liabilities, Non-current
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					7
Cross currency debt swaps | 3.90% unsecured Senior Notes payable
Fair values of derivative instruments in the consolidated balance sheet
Notional Amount					$ 5,000
Interest rate (as a percent)	3.90%	3.90%	3.90%	3.90%	3.90%
Designated as hedging instruments | Prepaid Expenses and Other Current Assets
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					$ 1,166			129
Designated as hedging instruments | Accrued Expenses and Other Current Liability
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					495			240
Designated as hedging instruments | Other Liabilities, Non-current
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					7
Designated as hedging instruments | Foreign currency contracts | Sell | Euros
Fair values of derivative instruments in the consolidated balance sheet
Notional Amount | €		€ 27,000
Derivative assets | €							€ 10,000
Designated as hedging instruments | Foreign currency contracts | Sell | Euros | Prepaid Expenses and Other Current Assets
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					1,066			129
Designated as hedging instruments | Foreign currency contracts | Sell | Canadian Dollars
Fair values of derivative instruments in the consolidated balance sheet
Notional Amount | CAD			CAD 28,000
Designated as hedging instruments | Foreign currency contracts | Sell | Canadian Dollars | Accrued Expenses and Other Current Liability
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					495
Designated as hedging instruments | Foreign currency contracts | Sell | Canadian Dollars | Other Liabilities, Non-current
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					7
Designated as hedging instruments | Foreign currency contracts | Sell | Pounds
Fair values of derivative instruments in the consolidated balance sheet
Notional Amount | £	£ 3,450
Derivative assets | £						£ 6,900
Designated as hedging instruments | Foreign currency contracts | Sell | Pounds | Prepaid Expenses and Other Current Assets
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					94
Designated as hedging instruments | Foreign currency contracts | Sell | Pounds | Accrued Expenses and Other Current Liability
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets								$ 240
Designated as hedging instruments | Foreign currency contracts | Sell | Australian Dollars
Fair values of derivative instruments in the consolidated balance sheet
Notional Amount | AUD				AUD 1,650
Designated as hedging instruments | Foreign currency contracts | Sell | Australian Dollars | Prepaid Expenses and Other Current Assets
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					6
Not designated under hedge accounting | Cross currency debt swaps
Fair values of derivative instruments in the consolidated balance sheet
Notional Amount					5,000
Not designated under hedge accounting | Cross currency debt swaps | 3.90% unsecured Senior Notes payable
Fair values of derivative instruments in the consolidated balance sheet
Notional Amount					$ 5,000
Interest rate (as a percent)	3.90%	3.90%	3.90%	3.90%	3.90%
Not designated under hedge accounting | Cross currency debt swaps | Other Assets
Fair values of derivative instruments in the consolidated balance sheet
Derivative assets					$ 206