Intangible Assets and Goodwill (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	Nov. 30, 2021	Nov. 30, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 558,619	$ 437,268
Accumulated Amortization	(271,434)	(224,521)
Total	287,185	212,747
Purchased technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	212,700	173,486
Accumulated Amortization	(128,797)	(113,863)
Total	83,903	59,623
Customer-related
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	306,308	231,342
Accumulated Amortization	(119,357)	(91,326)
Total	186,951	140,016
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	37,611	30,440
Accumulated Amortization	(21,556)	(18,275)
Total	16,055	12,165
Non-compete agreement
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,000	2,000
Accumulated Amortization	(1,724)	(1,057)
Total	$ 276	$ 943