Fair Value Measurements Fair Values (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2014	Aug. 31, 2013 Rate	Feb. 28, 2014	Aug. 31, 2014 Designated as Hedging Instrument [Member] Foreign Exchange Forward [Member]	Feb. 28, 2014 Designated as Hedging Instrument [Member] Foreign Exchange Forward [Member]	Aug. 31, 2014 Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Feb. 28, 2014 Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Aug. 31, 2014 Commercial Loan [Member] Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Aug. 31, 2014 Mortgages [Member] Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Aug. 31, 2014 United States of America, Dollars Revolving Credit Facility [Member] Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Apr. 30, 2013 LIBOR Rate Loan [Member] Commercial Loan [Member] Rate	Apr. 30, 2013 LIBOR Rate Loan [Member] United States of America, Dollars Revolving Credit Facility [Member] Rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage													0.515%	0.518%
Mortgage Loans on Real Estate, Interest Rate				3.92%
Accrued Liabilities, Fair Value Disclosure						$ (89)	$ (784)
Prepaid expenses and other current assets	20,697		20,697		15,897	428	0
Other Assets								(15)	(179)
Derivative Assets	324		324		(963)
Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments						17,612				6,890	25,000	37,500
Foreign currency contracts terminated	0		0
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	$ 49	$ (33)	$ 36	$ (30)