Note 5 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Aug. 31, 2019	Sep. 01, 2018	Aug. 31, 2019	Sep. 01, 2018	Dec. 01, 2018
Amortization of Intangible Assets, Total	$ 18,079	$ 19,116	$ 56,269	$ 57,635
Indefinite Lived Trademarks and Trade Names	$ 479		$ 479		$ 493

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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