ACQUISITIONS ACQUISITIONS (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Business Acquisition [Line Items]
Cash paid, net	$ 166,784	$ 8,737	$ 222,638
Additional purchase consideration	(204)	(56)	2,068
Additional purchase consideration	(293)	28,126	1,640
Other Acquisitions [Member]
Business Acquisition [Line Items]
Cash paid	171,829	6,759	91,647
Less: cash acquired	(5,062)	0	(3,185)
Cash paid, net	166,767	6,759	88,462
Contingent purchase consideration	21,355	0	20,654
Additional purchase consideration	(204)	(56)	569
Total purchase consideration	$ 187,918	$ 6,703	$ 109,685