Other Income (Expense), net - Components of Other Income (Expense), Net (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Other Income (Expense)
Interest income	$ 879	$ 1,927	$ 2,357	$ 3,491
Interest expense	(1,846)	(3,841)	(3,449)	(8,394)
Gain (loss) on assets related to deferred compensation plan	(18,460)	16,226	(5,987)	20,515
Foreign currency exchange gain (loss)	5,039	2,718	5,132	2,302
Other, net	(1,341)	1,385	(1,725)	142
Total	$ (15,729)	$ 18,415	$ (3,672)	$ 18,056