STOCK COMPENSATION PLANS - Compensation Costs (Details) - USD ($)	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	$ 2,400,000	$ 3,000,000.0	$ 5,200,000	$ 5,900,000
Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	$ 157,000	650,000	$ 347,000	1,263,000
Performance Based Awards | Performance Share Plan 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share issued (in shares)	84,511		84,511
Total stock based compensation expense	$ 0	650,000	$ 0	1,263,000
Performance Based Awards | Performance Share Plan 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share issued (in shares)	13,093		13,093
Total stock based compensation expense	$ 157,000	0	$ 347,000	0
Performance Based Awards | Performance Share Plan 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share issued (in shares)	0		0
Total stock based compensation expense	$ 0	0	$ 0	0
Performance Based Awards | Performance Share Plan 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share issued (in shares)	0		0
Total stock based compensation expense	$ 0	$ 0	$ 0	$ 0