ACQUISITIONS (Details 5) - USD ($) $ in Thousands	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Assets acquired:
Goodwill	$ 1,081,306	$ 865,717	$ 766,639
Electronic Technologies Group [Member]
Assets acquired:
Goodwill	692,700	$ 529,036	$ 429,132
Electronic Technologies Group [Member] | Robertson [Member]
Assets acquired:
Goodwill	93,425
Inventories	27,417
Property, plant and equipment	7,476
Accounts receivable	4,973
Other assets	1,884
Total assets acquired, excluding cash	258,275
Liabilities assumed:
Accounts payable	4,606
Accrued expenses	647
Total liabilities assumed	5,253
Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	253,022
Customer Relationships [Member] | Electronic Technologies Group [Member] | Robertson [Member]
Assets acquired:
Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	55,100
Intellectual Property [Member] | Electronic Technologies Group [Member] | Robertson [Member]
Assets acquired:
Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	39,600
Trade Names [Member] | Electronic Technologies Group [Member] | Robertson [Member]
Assets acquired:
Identifiable intangible assets	$ 28,400