Fair Value Measures (Tables)

9 Months Ended

Jul. 31, 2017

Fair Value Disclosures [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 July 31, 2017:

			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	$	510,086	$	510,086	$	—	$	—
Commercial paper	2,274		—		2,274		—
Certificates of deposit	1,600		—		1,600		—
Short-term investments:
U.S. government agency securities	17,953		—		17,953		—
Certificates of deposit	22,017		—		22,017		—
Commercial paper	23,507		—		23,507		—
Corporate debt securities	61,361		—		61,361		—
Asset-backed securities	21,169		—		21,169		—
Other	1,501		—		1,501		—
Prepaid and other current assets:
Foreign currency derivative contracts	17,323		—		17,323		—
Other long-term assets:
Deferred compensation plan assets	191,013		191,013		—		—
Total assets	$	869,804	$	701,099	$	168,705	$	—
Liabilities
Accounts payable and accrued liabilities:
Foreign currency derivative contracts	$	1,859	$	—	$	1,859	$	—
Other long-term liabilities:
Deferred compensation plan  liabilities	191,013		191,013		—		—
Total liabilities	$	192,872	$	191,013	$	1,859	$	—

Assets and liabilities measured at fair value on a recurring basis are summarized below as of October 31, 2016:

			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	$	499,274	$	499,274	$	—	$	—
Commercial paper	1,498		—		1,498		—
Certificates of deposit	4,200		—		4,200		—
Short-term investments:
U.S. government agency securities	13,603		—		13,603		—
Certificates of deposit	12,849		—		12,849		—
Commercial paper	25,431		—		25,431		—
Corporate debt securities	58,778		—		58,778		—
Asset-backed securities	22,146		—		22,146		—
Non-U.S. government agency securities	3,400		—		3,400		—
Other	4,488		4,488		—		—
Prepaid and other current assets:
Foreign currency derivative contracts	4,652		—		4,652		—
Other long-term assets:
Deferred compensation plan assets	163,185		163,185		—		—
Total assets	$	813,504	$	666,947	$	146,557	$	—
Liabilities
Accounts payable and accrued liabilities:
Foreign currency derivative contracts	$	20,010	$	—	$	20,010	$	—
Other long-term liabilities:
Deferred compensation plan liabilities	163,185		163,185		—		—
Total liabilities	$	183,195	$	163,185	$	20,010	$	—

Non-Marketable Equity Securities

The following table presents the non-marketable equity securities that were measured and recorded at fair value within other long-term assets on a non-recurring basis and the loss recorded in other income (expense), net.

	Balance as of July 31, 2017		Significant Unobservable Inputs (Level 3)		Total (losses) during three months ended July 31, 2017		Total (losses) during nine months ended July 31, 2017
	(in thousands)
Non-marketable equity securities	$	—	$	—	$	—	$	(1,300	)