Operating Segments - Reconciliation of Segment Operating Income to Consolidated Income Before Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Segment Reporting [Abstract]
Total profit for reportable segments	$ 51,978	$ 62,818
Interest expense	(5,844)	(4,089)
Interest and investment income	138	86
Other - net	802	(102)
Income before income taxes	$ 47,074	$ 58,713