Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended									6 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013	May 31, 2014 Accumulated Translation Adjustment [Member]	May 31, 2014 Accumulated Defined Benefit Plans Adjustment [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]	May 31, 2014 Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion							$ 686
Balance at November 30, 2013			(56,961)		(46,565)	(8,197)	(2,199)	(4,674)	(1,664)	(2,057)	(2,225)	(56,961)
Foreign currency translation adjustment	2,872	1,052	3,084	(33,088)	3,084
Reclassifications from AOCI to income, foreign currency translation					0
Other comprehensive income (loss) before reclassifications, net pension and OPEB liability						0
Reclassifications from AOCI to income, net pension and OPEB liability						0
Unrealized gain (loss) on hedging activities	(2,289)	393	(4,764)	561			(5,450)
Other comprehensive income (loss) before reclassifications												(2,366)
Reclassifications from AOCI to income												686
Balance at May 31, 2014	$ (58,641)		$ (58,641)		$ (43,481)	$ (8,197)	$ (6,963)	$ (4,674)	$ (1,664)	$ (2,057)	$ (2,225)	$ (58,641)