Description of Business and Summary of Significant Accounting Policies Fair Value Notes (Details)	12 Months Ended
	Feb. 28, 2017 USD ($)	Feb. 29, 2016 USD ($)	Feb. 28, 2015 USD ($)	Jul. 20, 2015 Rate
Foreign Currency Transaction Gain (Loss), before Tax	$ (509,000)	$ 108,000	$ (6,504,000)
Cost Method Investments	6,288,000
Goodwill, Impairment Loss	0	0	0
Derivative, Fixed Interest Rate | Rate				3.48%
Allocated Share-based Compensation Expense	1,804,000	1,384,000	521,000
Indefinite-lived Intangible Assets Acquired	$ 0	$ 9,070,000	0
Foreign currency contracts terminated	0	7
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	$ 177,000	$ 93,000	(85,000)
Prepaid expenses and other current assets	19,593,000	17,256,000
Derivative Assets	335,000	30,000
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments		64,000
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	42,667,000
Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member]
Accrued Liabilities	(21,000)	(98,000)
Prepaid expenses and other current assets	654,000	989,000
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Prepaid expenses and other current assets	0	1,000
Other Liabilities	(298,000)	(862,000)
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(449,000)	(792,000)
Derivative, Net Hedge Ineffectiveness Gain (Loss)	0	0
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	(114,000)	0
Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	455,000	1,220,000
Derivative, Net Hedge Ineffectiveness Gain (Loss)	177,000	93,000
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	(934,000)	(3,473,000)
Construction Loan Payable [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	9,113,000
Commercial Loan [Member]
Gain (Loss) on Discontinuation of Interest Rate Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net	0
Mortgages [Member]
Gain (Loss) on Discontinuation of Interest Rate Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net	$ 114,000	$ 0	$ 0