Operating Segments - Reconciliation of Segment Operating Income to Consolidated Income Before Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Segment Reporting [Abstract]
Total profit for reportable segments	$ 112,055	$ 130,276	$ 312,177	$ 343,453
Interest expense	(7,314)	(11,500)	(25,348)	(36,238)
Interest and investment income	434	511	1,301	1,153
Other - net	(9,668)	210	(12,943)	(4,546)
Income before income taxes	$ 95,507	$ 119,497	$ 275,187	$ 303,822