ACQUISITIONS ACQUISITIONS (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Business Acquisition [Line Items]
Cash paid, net	$ 418,265	$ 263,811	$ 166,784
AAT [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	317,500
Cash Acquired from Acquisition	(868)
Cash paid, net	316,632
Contingent purchase consideration	13,797
Additional purchase consideration	(220)
Total purchase consideration	330,649
Other Acquisitions [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	109,345	11,000	171,829
Cash Acquired from Acquisition	(7,712)		(5,062)
Cash paid, net	101,633	11,000	166,767
Contingent purchase consideration		1,225	21,355
Additional purchase consideration			211
Total purchase consideration	$ 101,633	$ 12,225	$ 187,911