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Restructuring (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Feb. 28, 2017	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			$ 22,210	$ 1,692
2017 Restructuring Activities
Restructuring Cost and Reserve [Line Items]
Percentage of reduction of global workforce (more than)	20.00%
Restructuring expenses		$ 2,251	22,125
2016 Restructuring Activities
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			1,500	1,482
2012 - 2015 Restructuring Activities
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			$ 85	$ 210
Other Accrued Liabilities | 2017 Restructuring Activities
Restructuring Cost and Reserve [Line Items]
Short-term restructuring reserves		$ 300

X

- Definition

The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s).

+ References

No definition available.

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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References

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-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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