Restructuring (Summary of Restructuring Activity) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Restructuring Reserve [Roll Forward]
Costs incurred	$ 2,266us-gaap_RestructuringCharges	$ 11,983us-gaap_RestructuringCharges	$ 7,204us-gaap_RestructuringCharges
2012 Restructuring Activities [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	906	7,032
Costs incurred	234	4,297
Cash disbursements	(926)	(10,364)
Asset impairment		(111)
Translation adjustments and other	(25)	52
Ending Balance	189	906
2012 Restructuring Activities [Member] \| Excess Facilities and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	615	603
Costs incurred	250	1,545
Cash disbursements	(650)	(1,423)
Asset impairment		(111)
Translation adjustments and other	(26)	1
Ending Balance	189	615
2012 Restructuring Activities [Member] \| Employee Severance and Related Benefits [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	291	6,429
Costs incurred	(16)	2,752
Cash disbursements	(276)	(8,941)
Asset impairment		0
Translation adjustments and other	1	51
Ending Balance	0	291
2013 Restructuring Activities [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	1,646	0
Costs incurred	396	8,720
Cash disbursements	(1,812)	(7,087)
Translation adjustments and other	(3)	13
Ending Balance	227	1,646
2013 Restructuring Activities [Member] \| Excess Facilities and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	569	0
Costs incurred	329	1,126
Cash disbursements	(666)	(510)
Translation adjustments and other	(5)	(47)
Ending Balance	227	569
2013 Restructuring Activities [Member] \| Employee Severance and Related Benefits [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	1,077	0
Costs incurred	67	7,594
Cash disbursements	(1,146)	(6,577)
Translation adjustments and other	2	60
Ending Balance	0	1,077
2014 Restructuring Activities [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Costs incurred	1,664
Cash disbursements	(437)
Ending Balance	1,227
2014 Restructuring Activities [Member] \| Excess Facilities and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Costs incurred	0
Cash disbursements	0
Ending Balance	0
2014 Restructuring Activities [Member] \| Employee Severance and Related Benefits [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Costs incurred	1,664
Cash disbursements	(437)
Ending Balance	$ 1,227

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

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Amount of foreign currency translation adjustment increasing or decreasing the accrual for a specified type of restructuring cost.

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

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-Subparagraph (b)(2)

-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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