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Derivative Instruments (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2016
Derivative [Line Items]
Derivative liabilities	$ 170	$ 27
Forward Contracts
Derivative [Line Items]
Minimum maturity period, foreign currency derivative	30 days
Maximum maturity period, foreign currency derivative	366 days
Gains (losses) on foreign currency option contracts	$ (6,900)	9,400	$ (4,000)
Other Noncurrent Liabilities
Derivative [Line Items]
Derivative liabilities	300
Other Current Assets
Derivative [Line Items]
Derivative liabilities	$ 100
Other Accrued Liabilities
Derivative [Line Items]
Derivative liabilities		200
Other Assets
Derivative [Line Items]
Derivative liabilities		$ 200

X

- Definition

Minimum Remaining Maturity of Foreign Currency Derivatives

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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