ACQUISITIONS ACQUISITIONS (Details 6) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Business Acquisition [Line Items]
Cash paid, net	$ 59,775	$ 418,265	$ 263,811
Other Acquisitions [Member]
Business Acquisition [Line Items]
Cash paid	61,931	109,346	11,000
Less: cash acquired	(4,000)	(7,713)	0
Cash paid, net	57,931	101,633	11,000
Contingent purchase consideration	0	0	1,225
Additional purchase consideration	(407)	1,300	0
Total purchase consideration	$ 57,524	$ 102,933	$ 12,225