ACQUISITIONS ACQUISITIONS (Total Consideration) (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Business Acquisition [Line Items]
Cash paid, net	$ 240,841	$ 59,775	$ 418,265
Other Acquisitions [Member]
Business Acquisition [Line Items]
Cash paid	243,550	61,931	109,346
Less: cash acquired	(2,466)	(4,000)	(7,713)
Cash paid, net	241,084	57,931	101,633
Contingent purchase consideration	2,107
Fair value of existing equity interest	1,417
Additional purchase consideration		(243)
Additional purchase consideration			1,300
Total purchase consideration	$ 244,608	$ 57,688	$ 102,933