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Business Combinations (Pro Forma Information) (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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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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