STOCK COMPENSATION PLANS - Compensation Costs (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	$ 2,300,000	$ 3,800,000	$ 7,500,000	$ 9,700,000
Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	$ 162,000	1,808,000	$ 509,000	3,071,000
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	596,000	$ 0	1,859,000
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	$ 162,000	1,212,000	$ 509,000	1,212,000
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