Stock Compensation Plans - Schedule of Compensation Cost Related to Performance Share Agreements (Detail) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost	$ 2,500	$ 5,200
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost	$ 3,774	8,579	$ 9,539
2014 Performance Share Agreement | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued or estimated	102,193
Total compensation cost	$ 0	$ 0	2,787
2016 Performance Share Agreement | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued or estimated		84,511
Total compensation cost	$ 2,504	$ 5,238	0
2017 Performance Share Agreement | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued or estimated	13,127
Total compensation cost	$ 1,270	0	0
2018 Performance Share Agreement | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued or estimated	0
Total compensation cost	$ 0	$ 0	$ 0