SHARE-BASED COMPENSATION, Share-based Activity (Details) - $ / shares shares in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Shares Available for Grant [Roll Forward]
Opening Balance Outstanding Shares (Shares Available For Grant)	4,612	830	2,016
Shares approved by Shareholders (Shares Available for Grant)	5,000	5,000
Granted (Available for Grant)	(538)	(412)	(1,186)
Cancelled (Available for Grant)	11	24
Ending Balance Outstanding Shares (Shares Available For Grant)	4,085	4,612	830
Shares Outstanding [Roll Forward]
Outstanding (Shares Under Option)	6,400	7,297	6,520
Granted (Shares Under Option)	538	412	1,186
Exercised (Shares Under Option)	(2,235)	(1,285)	(409)
Cancelled (Shares Under Option)	(11)	(24)
Outstanding (Shares Under Option)	4,692	6,400	7,297
Weighted Average Exercise Price [Roll Forward]
Outstanding (in dollars per share)	$ 23.19	$ 18.58	$ 14.23
Granted (in dollars per share)	73.30	65.64	41.37
Exercised (in dollars per share)	12.98	10.54	15.27
Cancelled (in dollars per share)	49.79	28.85
Outstanding (in dollars per share)	$ 33.73	$ 23.19	$ 18.58
2012 Incentive Compensation Plan [Member]
Shares Available for Grant [Roll Forward]
Cancelled (Available for Grant)		(830)