Fair Value Measurements (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
	Apr. 03, 2019	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2019	Nov. 30, 2018	[1]	Nov. 30, 2017	[1]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived asset impairment charges		$ 1,400	$ 5,100	$ 0	$ 5,147	[2]	$ 0	[2]
Proceeds from sale of property, plant and equipment, net				6,146	$ 0		$ 1,557
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Proceeds from sale of property, plant and equipment, net	$ 5,800
Gain (loss) on disposal	$ 100			$ 100
DataRPM and Kinvey
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of intangible assets		22,700
Trademarks and trade names | DataRPM and Kinvey
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of intangible assets		$ 22,700

[1] The Company adopted the accounting standard related to revenue recognition ("ASC 606") effective December 1, 2018 using the full retrospective method. See Note 1. Nature of Business and Summary of Significant Accounting Policies for further information.

[2] The Company adopted the accounting standard related to revenue recognition ("ASC 606") effective December 1, 2018 using the full retrospective method. See Note 1. Nature of Business and Summary of Significant Accounting Policies for further information.