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Segment Disclosure - Schedule of Segment Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018
Segment Reporting Information [Line Items]
Operating income	$ 115,502	$ 127,014	$ 262,916	$ 234,732
Amortization of intangible expense	(25,932)	(32,082)	(54,931)	(61,549)
Stock-based compensation expense	(36,914)	(32,965)	(75,374)	(65,288)
Operating Segments
Segment Reporting Information [Line Items]
Operating income	209,836	190,116	410,788	386,062
Reconciling items:
Segment Reporting Information [Line Items]
Amortization of intangible expense	25,197	31,186	53,424	59,733
Stock-based compensation expense	36,914	32,965	75,374	65,288
Other	$ (32,223)	$ 1,049	$ (19,074)	$ (26,309)

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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