STOCK COMPENSATION PLANS - Compensation Costs (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost	$ 3,100,000	$ 4,000,000	$ 13,700,000	$ 13,400,000
Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost	$ 1,222,000	1,971,000	$ 7,741,000	7,798,000
Performance Based Awards | Performance Share Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share issued (in shares)	102,193		102,193
Total compensation cost	$ 0	722,000	$ 0	2,065,000
Performance Based Awards | Performance Share Plan 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share issued (in shares)	145,469		145,469
Total compensation cost	$ 843,000	1,249,000	$ 2,517,000	5,733,000
Performance Based Awards | Performance Share Plan 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share issued (in shares)	97,763		97,763
Total compensation cost	$ 379,000	0	$ 5,224,000	0
Performance Based Awards | Performance Share Plan 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share issued (in shares)	0		0
Total compensation cost	$ 0	$ 0	$ 0	$ 0