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Financial Instruments and Risk Management (Details 3) (Designated as cash flow hedging instruments) In Thousands, unless otherwise specified	May 31, 2013 Prepaid Expenses and Other Current Assets USD ($)	Feb. 28, 2013 Prepaid Expenses and Other Current Assets USD ($)	May 31, 2013 Accrued Expenses and Other Current Liabilities USD ($)	Feb. 28, 2013 Accrued Expenses and Other Current Liabilities USD ($)	May 31, 2013 Other Liabilities, Noncurrent USD ($)	Feb. 28, 2013 Other Liabilities, Noncurrent USD ($)	May 31, 2013 Foreign currency contracts Euros EUR (€)	Feb. 28, 2013 Foreign currency contracts Euros EUR (€)	May 31, 2013 Foreign currency contracts Euros Prepaid Expenses and Other Current Assets USD ($)	Feb. 28, 2013 Foreign currency contracts Euros Prepaid Expenses and Other Current Assets USD ($)	May 31, 2013 Foreign currency contracts Pounds GBP (£)	Feb. 28, 2013 Foreign currency contracts Pounds GBP (£)	May 31, 2013 Foreign currency contracts Pounds Prepaid Expenses and Other Current Assets USD ($)	Feb. 28, 2013 Foreign currency contracts Pounds Prepaid Expenses and Other Current Assets USD ($)	May 31, 2013 Interest rate swaps USD ($)	Feb. 28, 2013 Interest rate swaps USD ($)	May 31, 2013 Interest rate swaps Accrued Expenses and Other Current Liabilities USD ($)	Feb. 28, 2013 Interest rate swaps Accrued Expenses and Other Current Liabilities USD ($)	May 31, 2013 Interest rate swaps Other Liabilities, Noncurrent USD ($)	Feb. 28, 2013 Interest rate swaps Other Liabilities, Noncurrent USD ($)
Fair values of derivative instruments in the consolidated balance sheet
Notional Amount, sell foreign currency							€ 3,250	€ 7,050			£ 2,000	£ 3,000
Notional Amount															75,000	75,000
Derivative assets	315	496							149	239			166	257
Derivative liabilities			$ 3,038	$ 3,044	$ 875	$ 1,780											$ 3,038	$ 3,044	$ 875	$ 1,780

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 205G

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44C

-Subparagraph a

-Clause 1

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

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Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 205G

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Name Accounting Standards Codification

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Aggregate notional amount of foreign currency derivatives to sell a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

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-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104



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