Derivatives Unrecognized hedging losses in AOCI (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013	May 31, 2014 Interest Rate Swap [Member]	May 31, 2013 Interest Rate Swap [Member]	May 31, 2014 Interest Rate Swap [Member]	May 31, 2013 Interest Rate Swap [Member]	May 31, 2014 Foreign currency forward cash flow hedge [Member]	May 31, 2013 Foreign currency forward cash flow hedge [Member]	May 31, 2014 Foreign currency forward cash flow hedge [Member]	May 31, 2013 Foreign currency forward cash flow hedge [Member]	May 31, 2014 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]	Feb. 28, 2014 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]	May 31, 2013 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]	Feb. 28, 2013 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]	Nov. 30, 2012 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Hedging activities in AOCI [Roll Forward]
Balance at November 30, 2013			$ (56,961)										$ (2,199)	$ (4,674)	$ (1,664)	$ (2,057)	$ (2,225)
Unrealized gain (loss) on hedging activities	(2,289)	393	(4,764)	561	(2,792)	55	(5,279)	33	120	143	(171)	85	(5,450)
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion					239	235	474	461	144	(40)	212	(18)	686
Balance at May 31, 2014	$ (58,641)		$ (58,641)										$ (6,963)	$ (4,674)	$ (1,664)	$ (2,057)	$ (2,225)

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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