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DERIVATIVE INSTRUMENTS: (Details) (Foreign Exchange Forward Contracts [Member], USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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May 31, 2013
|
Nov. 30, 2012
|
May 31, 2013
Other Current Assets [Member]
|
Nov. 30, 2012
Other Current Assets [Member]
|
May 31, 2013
Accrued Liabilities [Member]
|
Nov. 30, 2012
Accrued Liabilities [Member]
|
May 31, 2013
Other Income (Expense), Net [Member]
|
May 31, 2012
Other Income (Expense), Net [Member]
|
May 31, 2013
Other Income (Expense), Net [Member]
|
May 31, 2012
Other Income (Expense), Net [Member]
|
|
| Foreign Currency Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net [Abstract] | ||||||||||
| Foreign Currency Forward Contract Asset at Fair Value | $ 2,487 | $ 1,292 | ||||||||
| Foreign Currency Forward Contract Liability Fair Value | 215 | 0 | ||||||||
| Outstanding notional amounts of foreign exchange forward contracts | 175,227 | 128,518 | ||||||||
| Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net | $ 3,052 | $ 2,324 | $ 6,480 | $ 1,368 | ||||||