Restructuring Charges (Summary of Restructuring Activity) (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	[1]
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 311
Costs incurred	415	$ 1,821
Cash disbursements	(159)
Translation adjustments and other	(84)
Excess Facilities and Other Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	307
Costs incurred	411
Cash disbursements	(151)
Translation adjustments and other	(84)
Ending Balance	483
Employee Severance and Related Benefits
Restructuring Reserve [Roll Forward]
Beginning Balance	4
Costs incurred	4
Cash disbursements	(8)
Translation adjustments and other	0
Ending Balance	$ 0

[1] The Company adopted ASC 606 effective December 1, 2018 using the full retrospective method. See Note 1. Nature of Business and Basis of Presentation for further information.