Other Income (Expense), net - Components of Other Income (Expense), Net (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Other Income (Expense)
Interest income	$ 927	$ 1,499	$ 2,563	$ 2,733
Interest expense	(3,880)	(1,860)	(6,723)	(3,168)
Gain (loss) on assets related to executive deferred compensation plan assets	(7,245)	7,763	6,195	15,543
Foreign currency exchange gain (loss)	1,117	(623)	98	2,599
Other, net	1,366	1,635	2,537	2,194
Total	$ (7,715)	$ 8,414	$ 4,670	$ 19,901