Financial Assets and Liabilities (Tables)

9 Months Ended

Jul. 31, 2021

Financial Assets And Liabilities [Abstract]

Debt Securities, Available-for-sale

As of July 31, 2021, the stated maturities of the Company's short-term available-for-sale securities were:

	Amortized Cost		Fair Value
	(in thousands)
less than 1 year	$	38,178	$	38,169
1-5 years	99,133		99,154
> 5 years	7,447		7,450
Total	$	144,758	$	144,773

Summary of Cash Equivalents

As of July 31, 2021, the balances of the Company’s cash equivalents and short-term investments were:

	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	$	249,814	$	—	$	—	$	—	$	249,814
Corporate debt securities	3,080		—		(1)		—		3,079
Total:	$	252,894	$	—	$	(1)	$	—	$	252,893
Short-term investments:
U.S. government agency & T-bills	$	7,745	$	2	$	—	$	—	$	7,747
Municipal bonds	2,465		1		—		—		2,466
Corporate debt securities	100,308		38		(28)		—		100,318
Asset-backed securities	33,502		10		(7)		—		33,505
Others	738		—		(1)		—		737
Total:	$	144,758	$	51	$	(36)	$	—	$	144,773

(1)See Note 7. Fair Value Measures for further discussion on fair values of cash equivalents and short-term investments.

As of October 31, 2020, the balances of the Company’s cash equivalents were:

	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	$	304,127	$	—	$	—	$	—	$	304,127
Total:	$	304,127	$	—	$	—	$	—	$	304,127

(1)See Note 7. Fair Value Measures for further discussion on fair values of cash equivalents.

Schedule of Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash included in the unaudited condensed consolidated balance sheets:

	As of
	July 31, 2021		October 31, 2020
	(in thousands)
Cash and cash equivalents	$	1,385,395	$	1,235,653
Restricted cash included in Prepaid expenses and other current assets	1,556		1,523
Restricted cash included in Other long-term assets	786		794
Total cash, cash equivalents and restricted cash	$	1,387,737	$	1,237,970

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

The effects of the non-designated derivative instruments on the Company’s unaudited condensed consolidated statements of operations is summarized as follows:

	Three Months Ended   July 31,				Nine Months Ended   July 31,
	2021		2020		2021		2020
	(in thousands)
Gain (loss) recorded in other income (expense), net	$	(837)	$	2,995	$	1,420	$	1,891

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, 2021		October 31, 2020
	(in thousands)
Total gross notional amount	$	826,747	$	981,234
Net fair value	$	11,346	$	6,940

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

The following table represents the unaudited condensed consolidated balance sheets 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)
Balance at July 31, 2021
Other current assets	$	11,060	$	598
Accrued liabilities	$	237	$	75
Balance at October 31, 2020
Other current assets	$	9,182	$	138
Accrued liabilities	$	2,088	$	292

Income Statement 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, 2021
Foreign exchange contracts	Revenue	$	251	Revenue	$	1,563
Foreign exchange contracts	Operating expenses	3,413		Operating expenses	3,267
Total		$	3,664		$	4,830
Three months ended   July 31, 2020
Foreign exchange contracts	Revenue	$	626	Revenue	$	466
Foreign exchange contracts	Operating expenses	11,773		Operating expenses	(1,175)
Total		$	12,399		$	(709)
Nine months ended   July 31, 2021
Foreign exchange contracts	Revenue	$	1,892	Revenue	$	2,597
Foreign exchange contracts	Operating expenses	7,079		Operating expenses	9,583
Total		$	8,971		$	12,180
Nine months ended   July 31, 2020
Foreign exchange contracts	Revenue	$	2,836	Revenue	$	648
Foreign exchange contracts	Operating expenses	1,129		Operating expenses	(2,211)
Total		$	3,965		$	(1,563)