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Derivative Instruments (Outstanding Foreign Currency Forward Contracts) (Details) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2014	Nov. 30, 2013
Derivative [Line Items]
Notional Value	$ 34,797	$ 48,499
Total, Fair Value	(116)	171
Forward contracts to sell U.S. dollars [Member]
Derivative [Line Items]
Notional Value	17,628	26,016
Foreign currency derivative contracts to purchase U.S. dollars, Fair Value	18	79
Forward contracts to purchase U.S. dollars [Member]
Derivative [Line Items]
Notional Value	17,169	22,483
Foreign currency derivative contracts to purchase U.S. dollars, Fair Value	$ (134)	$ 92

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

+ Details

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X

- Details

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X

- Definition

Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

+ References

No definition available.

+ Details

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X

- Definition

Fair value as of the balance sheet date of foreign currency derivative assets, net of foreign currency derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

+ Details

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