Operating Segments - Reconciliation of Segment Operating Income to Consolidated Income Before Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Segment Reporting [Abstract]
Total profit for reportable segments	$ 109,025	$ 75,093
Interest expense	(6,932)	(9,740)
Interest and investment income	380	588
Other - net	(4,661)	(2,846)
Income before income taxes	$ 97,812	$ 63,095