FAIR VALUE MEASUREMENTS (Contingent Consideration Liability) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2016	Oct. 31, 2015
Liabilities [Abstract]
Accrued Liabilities, Current	$ 86,242	$ 100,155
Other Liabilities, Noncurrent	107,652	105,618
Total liabilities	968,146	$ 751,834
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Consideration Transferred, Liabilities Incurred	1,225
Balances as of October 31, 2014, Liabilities	21,405
Increase in accrued contingent consideration	847
Liabilities Measured on Recurring Basis, Change in Unrealized Gain (Loss)	(336)
Balances as of January 31, 2015, Liabilities	23,141
Liabilities [Abstract]
Accrued Liabilities, Current	6,858
Other Liabilities, Noncurrent	16,283
Total liabilities	$ 23,141