Restructuring Charges (Summary of Restructuring Activity) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Feb. 28, 2015	Feb. 28, 2014
Restructuring Reserve [Roll Forward]
Costs incurred	$ 2,344us-gaap_RestructuringCharges	$ 196us-gaap_RestructuringCharges
2015 Restructuring Activities [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Costs incurred	1,012
Cash disbursements	(468)
Translation adjustments and other	1
Ending Balance	545
2015 Restructuring Activities [Member] \| Excess Facilities and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Costs incurred	142
Cash disbursements	0
Translation adjustments and other	0
Ending Balance	142
2015 Restructuring Activities [Member] \| Employee Severance and Related Benefits [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Costs incurred	870
Cash disbursements	(468)
Translation adjustments and other	1
Ending Balance	403
2014 Restructuring Activities [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	1,227
Costs incurred	1,359
Cash disbursements	(759)
Translation adjustments and other	(6)
Ending Balance	1,821
2014 Restructuring Activities [Member] \| Excess Facilities and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Costs incurred	123
Cash disbursements	0
Translation adjustments and other	0
Ending Balance	123
2014 Restructuring Activities [Member] \| Employee Severance and Related Benefits [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	1,227
Costs incurred	1,236
Cash disbursements	(759)
Translation adjustments and other	(6)
Ending Balance	1,698
2013 Restructuring Activities [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	416
Costs incurred	(27)
Cash disbursements	(162)
Translation adjustments and other	(17)
Ending Balance	210
2013 Restructuring Activities [Member] \| Excess Facilities and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	416
Costs incurred	(27)
Cash disbursements	(162)
Translation adjustments and other	(17)
Ending Balance	210
2013 Restructuring Activities [Member] \| Employee Severance and Related Benefits [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Costs incurred	0
Cash disbursements	0
Translation adjustments and other	0
Ending Balance	$ 0

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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- Definition

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)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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

Reference 3: 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))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 5.P.3)

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

+ Details

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- Definition

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))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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- Definition

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

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b)(2))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)(2)

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

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