ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 31, 2017	Jul. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	$ 766,341
Accumulated other comprehensive income - ending balance	944,310
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	(24,329)	$ (22,126)
Other comprehensive income (loss) before reclassifications	17,092	(2,331)
Amounts reclassified from AOCI	1,742	3,067
Accumulated other comprehensive income - ending balance	(5,495)	(21,390)
Unrealized gain/(loss) on marketable securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	139	(78)
Other comprehensive income (loss) before reclassifications	(533)	425
Amounts reclassified from AOCI	0	0
Accumulated other comprehensive income - ending balance	(394)	347
Unrealized gain/(loss) on derivatives | Foreign Currency Contracts
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	(1,091)	(268)
Other comprehensive income (loss) before reclassifications	4,838	(70)
Amounts reclassified from AOCI	(268)	588
Accumulated other comprehensive income - ending balance	1,815	250
Unrealized gain/(loss) on derivatives | Starting Interest Rate Swap
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	(5,967)	(5,522)
Other comprehensive income (loss) before reclassifications	896	(4,655)
Amounts reclassified from AOCI	2,010	2,479
Accumulated other comprehensive income - ending balance	(1,397)	(7,698)
Cumulative foreign currency translation adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	(17,410)	(16,258)
Other comprehensive income (loss) before reclassifications	11,891	1,969
Amounts reclassified from AOCI	0	0
Accumulated other comprehensive income - ending balance	$ (5,519)	$ (14,289)