Fair Value Measures (Tables)

6 Months Ended

Apr. 30, 2012

Fair Value Measures [Abstract]

Assets And Liabilities Measured At Fair Value On Recurring Basis

			Fair Value Measurement Using
Description	Total		Quoted Prices in Active Markets for Identical Assets (Level  1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets
Cash equivalents:
Money market funds	$	496,218	$	496,218	$	—	$	—
Prepaid and other current assets:
Foreign currency derivative contracts		3,938		—		3,938		—
Other long-term assets:
Deferred compensation plan assets		98,197		98,197		—		—
Total assets	$	598,353	$	594,415	$	3,938	$	—
Liabilities
Accounts payable and accrued liabilities:
Foreign currency derivative contracts	$	10,087	$	—	$	10,087	$	—
Contingent consideration(1)		999		—		—		999
Other long-term liabilities:
Contingent consideration(1)		355		—		—		355
Total liabilities	$	11,441	$	—	$	10,087	$	1,354

(1) Includes addition of contingent consideration of $0.7 million arising from a business combination completed during fiscal 2012 which is payable over two years.

Assets and liabilities measured at fair value on a recurring basis are summarized below as of October 31, 2011:

			Fair Value Measurement Using
Description	Total		Quoted Prices in Active Markets for Identical Assets (Level  1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets
Cash equivalents:
Money market funds	$	543,770	$	543,770	$	—	$	—
Short-term investments:
Municipal securities		148,997		—		148,997		—
Prepaid and other current assets:
Foreign currency derivative contracts		2,161		—		2,161		—
Other long-term assets:
Deferred compensation plan assets		90,060		90,060		—		—
Total assets	$	784,988	$	633,830	$	151,158	$	—
Liabilities
Accounts payable and accrued liabilities:
Foreign currency derivative contracts	$	16,856	$	—	$	16,856	$	—
Contingent consideration		2,096		—		—		2,096
Other long-term liabilities:
Contingent consideration		2,200		—		—		2,200
Total liabilities	$	21,152	$	—	$	16,856	$	4,296

Non-Marketable Equity Securities

	Balance as of April 30, 2011		Significant Unobservable Inputs (Level 3)		Total (losses) during three months ended April 30, 2011			Total (losses) during six months ended April 30, 2011
	(in thousands)
Non-marketable equity securities	$	92	$	92	$	(92	)	$	(999	)