ACQUISITIONS ACQUISITIONS (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Business Acquisition [Line Items]
Cash paid, net	$ 263,811	$ 166,784	$ 8,737
Additional purchase consideration	0	(204)	(56)
Other Acquisitions [Member]
Business Acquisition [Line Items]
Cash paid	11,000	171,829	6,759
Less: cash acquired	0	(5,062)	0
Cash paid, net	11,000	166,767	6,759
Contingent purchase consideration	1,225	21,355	0
Additional purchase consideration	0	(211)	(56)
Total purchase consideration	$ 12,225	$ 187,911	$ 6,703