Fair Value Measures (Tables)

3 Months Ended

Jan. 31, 2012

Jan. 31, 2011

Fair Value Measures [Abstract]

Assets And Liabilities Measured At Fair Value On Recurring Basis

Assets and liabilities measured at fair value on a recurring basis are summarized below as of January 31, 2012:

			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	$	515,617	$	515,617	$	—	$	—
Short-term investments:
Municipal securities		132,150		—		132,150		—
Prepaid and other current assets:
Foreign currency derivative contracts		1,382		—		1,382		—
Other long-term assets:
Deferred compensation plan assets		93,946		93,946		—		—
Total assets	$	743,095	$	609,563	$	133,532	$	—
Liabilities
Accounts payable and accrued liabilities:
Foreign currency derivative contracts	$	16,494	$	—	$	16,494	$	—
Contingent consideration(1)		1,416		—		—		1,416
Other long-term liabilities:
Contingent consideration(1)		1,336		—		—		1,336
Total liabilities	$	19,246	$	—	$	16,494	$	2,752

(1) Includes addition of contingent consideration of $0.7 million arising from a business combination completed during fiscal 2012 which is payable over 2 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 January 31,  2011		Significant Unobservable Inputs (Level 3)		Total (losses) during three months ended January 31, 2011
	(in thousands)
Non-marketable equity securities	$	92	$	92	$	(908	)