Business Combinations (Schedule of Pro Forma Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020
Kemp Acquisition
Business Acquisition [Line Items]
Revenue	$ 590,133	$ 490,229
Net income	$ 75,612	$ 65,360
Net income per basic share (in dollars per share)	$ 1,720	$ 1,460
Net income per diluted share (in dollars per share)	$ 1,690	$ 1,440
Chef Acquisition
Business Acquisition [Line Items]
Revenue	$ 497,700
Net income	$ 61,952
Net income per basic share (in dollars per share)	$ 1.38
Net income per diluted share (in dollars per share)	$ 1.37