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Business Combinations (Pro Forma Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Nov. 30, 2020	Nov. 30, 2019
Chef Acquisition
Business Acquisition [Line Items]
Revenue	$ 497,700	$ 459,665
Net income	$ 61,952	$ (18,852)
Net income per basic share (in dollars per share)	$ 1.38	$ (0.42)
Net income per diluted share (in dollars per share)	$ 1.37	$ (0.42)
Ipswitch
Business Acquisition [Line Items]
Revenue		$ 442,286
Net income		$ 19,641
Net income per basic share (in dollars per share)		$ 0.44
Net income per diluted share (in dollars per share)		$ 0.43

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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