Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value) (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands		Apr. 30, 2016	Oct. 31, 2015
Assets
Money market funds	[1]	$ 1,151,583	$ 1,184,410
Derivative assets		1,025	709
Total assets measured at fair value		1,152,608	1,185,119
Liabilities
Derivative liabilities		739	1,125
Total liabilities measured at fair value		739	1,125
Quoted Prices In Active Markets For Identical Instruments (Level 1)
Assets
Money market funds	[1]	1,151,583	1,184,410
Derivative assets		0	0
Total assets measured at fair value		1,151,583	1,184,410
Liabilities
Derivative liabilities		0	0
Total liabilities measured at fair value		0	0
Significant Other Observable Inputs (Level 2)
Assets
Money market funds	[1]	0	0
Derivative assets		1,025	709
Total assets measured at fair value		1,025	709
Liabilities
Derivative liabilities		739	1,125
Total liabilities measured at fair value		739	1,125
Significant Unobservable Inputs (Level 3)
Assets
Money market funds	[1]	0	0
Derivative assets		0	0
Total assets measured at fair value		0	0
Liabilities
Derivative liabilities		0	0
Total liabilities measured at fair value		$ 0	$ 0

[1] Money market funds are reported within “Cash and cash equivalents” on the Company’s Condensed Consolidated Balance Sheets.