Financial Assets and Liabilities (Tables)

6 Months Ended

Apr. 30, 2016

Financial Assets And Liabilities [Abstract]

Summary of Available-for-Sale Securities

As of April 30, 2016, the balances of our available-for-sale securities are:

	Cost		Gross Unrealized Gains		Gross Unrealized Losses Less Than 12 Months			Gross Unrealized Losses 12 Months or Longer		Estimated Fair Value(1)
	(in thousands)
Cash equivalents:
Money market funds	$	308,004	$	—	$	—		$	—	$	308,004
Commercial paper	600		—		—			—		600
Certificates of deposit	4,901		—		—			—		4,901
U.S. government agency securities	3,399		—		—			—		3,399
Total:	$	316,904	$	—	$	—		$	—	$	316,904
Short-term investments:
U.S. government agency securities	$	11,612	$	2	$	(2	)	$	—	$	11,612
Municipal bonds	1,401		1		—			—		1,402
Certificates of deposit	13,598		—		—			—		13,598
Commercial paper	12,010		—		—			—		12,010
Corporate debt securities	66,777		43		(9		)	—		66,811
Asset-backed securities	20,591		8		(10		)	—		20,589
Non-U.S. government agency securities	1,005		—		(1		)	—		1,004
Other	4,950		—		—			—		4,950
Total:	$	131,944	$	54	$	(22	)	$	—	$	131,976

(1) See Note 6. Fair Value Measures for further discussion on fair values of cash equivalents and short-term investments.

As of October 31, 2015, the balances of our available-for-sale securities are:

	Cost		Gross Unrealized Gains		Gross Unrealized Losses Less Than 12 Continuous Months			Gross Unrealized Losses 12 Continuous Months or Longer		Estimated Fair Value(1)
	(in thousands)
Cash equivalents:
Money market funds	$	233,839	$	—	$	—		$	—	$	233,839
Commercial paper	1,834		—		—			—		1,834
Certificates of deposit	3,500		—		—			—		3,500
Asset-backed securities	300		—		(1		)	—		299
Total:	$	239,473	$	—	$	(1	)	$	—	$	239,472
Short-term investments:
U.S. government agency securities	$	12,615	$	3	$	(4	)	$	—	$	12,614
Municipal bonds	1,403		1		(1		)	—		1,403
Certificates of deposit	9,800		—		—			—		9,800
Commercial paper	12,129		—		—			—		12,129
Corporate debt securities	67,201		27		(40		)	—		67,188
Asset-backed securities	24,619		2		(13		)	—		24,608
Non-U.S. government agency securities	1,007		—		(2		)	—		1,005
Total:	$	128,774	$	33	$	(60	)	$	—	$	128,747

(1) See Note 6. Fair Value Measures for further discussion on fair values of cash equivalents and short-term investments.

Maturities of Available-for-Sale securities

As of April 30, 2016, the stated maturities of the Company's available-for-sale securities are:

	Amortized Cost		Fair Value
	(in thousands)
Due in 1 year or less	$	83,453	$	83,466
Due in 2-5 years	48,432		48,451
Due in 6-10 years	59		59
Total	$	131,944	$	131,976

Effects on Changes in Fair Values of Non-Designated Forward Contracts

The effects of the changes in the fair values of non-designated forward contracts are summarized as follows:

	Three Months Ended   April 30,					Six Months Ended   April 30,
	2016		2015			2016			2015
	(in thousands)
Gain (loss) recorded in other income (expense), net	$	1,914	$	(235	)	$	(1,849	)	$	(2,993	)

Notional Amounts of Derivative Instruments

The notional amounts in the table below for derivative instruments provide one measure of the transaction volume outstanding:

	As of April 30, 2016			As of October 31, 2015
	(in thousands)
Total gross notional amount	$	719,816		$	781,752
Net fair value	$	(9,203	)	$	(3,819	)

Fair Values of Derivative Instrument Designated and Non-Designated as Hedging Instruments in Balance Sheet

The following represents the unaudited condensed consolidated balance sheet location and amount of derivative instrument fair values segregated between designated and non-designated hedge instruments:

	Fair values of derivative instruments designated as hedging instruments		Fair values of derivative instruments not designated as hedging instruments
	(in thousands)
As of April 30, 2016
Other current assets	$	5,239	$	45
Accrued liabilities	$	13,558	$	929
As of October 31, 2015
Other current assets	$	6,461	$	1
Accrued liabilities	$	10,141	$	140

Income Statement Location and Amount of Gains and Losses on Derivative Instrument Fair Values for Designated Hedge Instruments, Net of Tax

The following table represents the unaudited condensed consolidated statement of operations location and amount of gains and losses on derivative instrument fair values for designated hedge instruments, net of tax:

	Location of gain (loss) recognized in OCI on derivatives	Amount of gain (loss) recognized in OCI on derivatives (effective portion)			Location of gain (loss) reclassified from OCI	Amount of gain (loss) reclassified from OCI (effective portion)
	(in thousands)
Three months ended   April 30, 2016
Foreign exchange contracts	Revenue	$	(6,182	)	Revenue	$	(1,429	)
Foreign exchange contracts	Operating expenses	9,322			Operating expenses	(3,768		)
Total		$	3,140			$	(5,197	)
Three months ended   April 30, 2015
Foreign exchange contracts	Revenue	$	374		Revenue	$	26
Foreign exchange contracts	Operating expenses	(1,704		)	Operating expenses	(6,397		)
Total		$	(1,330	)		$	(6,371	)
Six months ended   April 30, 2016
Foreign exchange contracts	Revenue	$	(7,673	)	Revenue	$	(1,217	)
Foreign exchange contracts	Operating expenses	(1,945		)	Operating expenses	(7,696		)
Total		$	(9,618	)		$	(8,913	)
Six months ended   April 30, 2015
Foreign exchange contracts	Revenue	$	3,340		Revenue	$	2,406
Foreign exchange contracts	Operating expenses	(17,499		)	Operating expenses	(9,833		)
Total		$	(14,159	)		$	(7,427	)

Ineffective Portion and Portion Excluded from Effectiveness Testing of Derivative Hedge Gains (Losses)

The following table represents the ineffective portions and portions excluded from effectiveness testing of the hedge gains (losses) for derivative instruments designated as hedging instruments, which are recorded in other income (expense), net:

Foreign exchange contracts	Amount of gain (loss) recognized in statement of operations on derivatives (ineffective portion)(1)			Amount of gain (loss) recognized in statement of operations on derivatives (excluded from effectiveness testing)(2)
	(in thousands)
For the three months ended April 30, 2016	$	201		$	2,140
For the three months ended April 30, 2015	$	(40	)	$	1,234
For the six months ended April 30, 2016	$	455		$	3,541
For the six months ended April 30, 2015	$	700		$	2,306

(1) The ineffective portion includes forecast inaccuracies.

(2) The portion excluded from effectiveness testing includes the discount earned or premium paid for the contracts.