Business Combinations (Schedule of Net Assets Acquired) (Details) - USD ($) $ in Thousands	12 Months Ended		13 Months Ended	26 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2022	Nov. 01, 2021	Nov. 30, 2020	Oct. 05, 2020
Business Acquisition [Line Items]
Goodwill	$ 671,037	$ 671,152	$ 671,037	$ 671,037		$ 491,726
Measurement Period Adjustments
Goodwill	(88)	(77)
Kemp Acquisition
Business Acquisition [Line Items]
Net working capital	26,650		26,650	26,650	$ 27,075
Property, plant and equipment	795		795	795	803
Intangible assets	122,100		122,100	122,100
Other assets	197		197	197	170
Other noncurrent liabilities	(1,404)		(1,404)	(1,404)	(604)
Deferred taxes	(22,027)		(22,027)	(22,027)	(23,187)
Deferred revenue	(29,997)		(29,997)	(29,997)	(29,997)
Goodwill	179,433		179,433	179,433	179,521
Net assets acquired	275,747		275,747	275,747	275,881
Measurement Period Adjustments
Net working capital			(425)
Property, plant and equipment			(8)
Other assets			27
Other noncurrent liabilities			(800)
Deferred taxes			1,160
Goodwill			(88)
Net assets acquired			(134)
Kemp Acquisition | Purchased technology
Business Acquisition [Line Items]
Intangible assets	39,400		$ 39,400	39,400	39,400
Measurement Period Adjustments
Finite-lived intangible assets, useful life			5 years
Kemp Acquisition | Trade name
Business Acquisition [Line Items]
Intangible assets	7,200		$ 7,200	7,200	7,200
Measurement Period Adjustments
Finite-lived intangible assets, useful life			5 years
Kemp Acquisition | Customer relationships
Business Acquisition [Line Items]
Intangible assets	75,500		$ 75,500	75,500	$ 75,500
Measurement Period Adjustments
Finite-lived intangible assets, useful life			5 years
Chef acquisition
Business Acquisition [Line Items]
Net working capital	52,477		$ 52,477	52,477			$ 52,330
Property, plant and equipment	498		498	498			498
Intangible assets		$ 141,300
Other assets	122		122	122			122
Other noncurrent liabilities	(841)		(841)	(841)			(841)
Lease liabilities, net	(1,810)		(1,810)	(1,810)			(1,810)
Deferred taxes	(7,691)		(7,691)	(7,691)			(7,817)
Deferred revenue	(12,525)		(12,525)	(12,525)			(12,525)
Goodwill	59,585		59,585	59,585			59,858
Net assets acquired	231,115		231,115	231,115			231,115
Measurement Period Adjustments
Net working capital				147
Deferred taxes				126
Goodwill				(273)
Net assets acquired				0
Chef acquisition | Purchased technology
Business Acquisition [Line Items]
Intangible assets	38,300		38,300	$ 38,300			38,300
Measurement Period Adjustments
Finite-lived intangible assets, useful life				5 years
Chef acquisition | Trade name
Business Acquisition [Line Items]
Intangible assets	5,700		5,700	$ 5,700			5,700
Measurement Period Adjustments
Finite-lived intangible assets, useful life				5 years
Chef acquisition | Customer relationships
Business Acquisition [Line Items]
Intangible assets	$ 97,300		$ 97,300	$ 97,300			$ 97,300
Measurement Period Adjustments
Finite-lived intangible assets, useful life				7 years