Financial Assets and Liabilities (Tables)

9 Months Ended

Jul. 31, 2018

Financial Assets And Liabilities [Abstract]

Summary of Available-for-Sale Securities

As of July 31, 2018, the balances of our cash equivalents 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	$	70,217	$	—	$	—	$	—	$	70,217
Total:	$	70,217	$	—	$	—	$	—	$	70,217

(1) See Note 6. Fair Value Measures for further discussion on fair values of cash equivalents.

As of October 31, 2017, the balances of our cash equivalents 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	$	560,594	$	—	$	—	$	—	$	560,594
Total:	$	560,594	$	—	$	—	$	—	$	560,594

(1) See Note 6. Fair Value Measures for further discussion on fair values of cash equivalents.

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   July 31,				Nine Months Ended   July 31,
	2018		2017		2018		2017
	(in thousands)
Gain (loss) recorded in other income (expense), net	$	1,567	$	515	$	1,244	$	1,838

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 July 31, 2018			As of October 31, 2017
	(in thousands)
Total gross notional amount	$	902,267		$	955,139
Net fair value	$	(9,202	)	$	14,052

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 July 31, 2018
Other current assets	$	3,872	$	9
Accrued liabilities	$	12,962	$	121
As of October 31, 2017
Other current assets	$	16,582	$	15
Accrued liabilities	$	2,485	$	59

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   July 31, 2018
Foreign exchange contracts	Revenue	$	1,422		Revenue	$	(308	)
Foreign exchange contracts	Operating expenses	(13,793		)	Operating expenses	1,970
Total		$	(12,371	)		$	1,662
Three months ended   July 31, 2017
Foreign exchange contracts	Revenue	$	(176	)	Revenue	$	(198	)
Foreign exchange contracts	Operating expenses	8,747			Operating expenses	176
Total		$	8,571			$	(22	)
Nine months ended   July 31, 2018
Foreign exchange contracts	Revenue	$	(542	)	Revenue	$	1,190
Foreign exchange contracts	Operating expenses	(7,349		)	Operating expenses	11,320
Total		$	(7,891	)		$	12,510
Nine months ended   July 31, 2017
Foreign exchange contracts	Revenue	$	6,824		Revenue	$	(2,379	)
Foreign exchange contracts	Operating expenses	12,357			Operating expenses	(3,236		)
Total		$	19,181			$	(5,615	)

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 July 31, 2018	$	(132	)	$	782
For the three months ended July 31, 2017	$	11		$	776
For the nine months ended July 31, 2018	$	389		$	2,488
For the nine months ended July 31, 2017	$	175		$	3,393

(1) The ineffective portion includes forecast inaccuracies.

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