Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 295,802	$ 271,843	$ 211,111
Components of other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	22,697	(8,693)	(45,154)
Pension and postretirement benefit plans:
Prior service credit arising during the year		1,831
Net actuarial gain (loss) arising during the year	2,641	(22,482)	(7,588)
Amortization of prior service cost	(210)	92	(303)
Amortization of actuarial loss	7,972	6,724	10,146
Settlement loss recognized	712	111	1,369
Curtailment (gain) loss recognized		(1,144)	43
Total pension and postretirement benefit plans	11,115	(14,868)	3,667
Total other comprehensive income (loss)	33,812	(23,561)	(41,487)
Total comprehensive income	$ 329,614	$ 248,282	$ 169,624