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Intangible Assets and Goodwill (Schedule Of Intangible Assets) (Details) - USD ($) $ in Thousands	May 31, 2020	Nov. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 295,968	$ 295,968
Accumulated Amortization	(208,194)	(196,576)
Net Book Value	87,774	99,392
Purchased technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	135,186	135,186
Accumulated Amortization	(109,277)	(105,967)
Net Book Value	25,909	29,219
Customer-related
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	134,042	134,042
Accumulated Amortization	(81,129)	(74,175)
Net Book Value	52,913	59,867
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	24,740	24,740
Accumulated Amortization	(17,064)	(16,043)
Net Book Value	7,676	8,697
Non-compete agreement
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,000	2,000
Accumulated Amortization	(724)	(391)
Net Book Value	$ 1,276	$ 1,609

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
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