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Financial Assets and Liabilities (Tables)
3 Months Ended
Jan. 31, 2016
Financial Assets And Liabilities [Abstract]  
Summary of Available-for-Sale Securities
As of January 31, 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
$
199,561

 
$

 
$

 
$

 
$
199,561

Commercial paper
1,199

 

 

 

 
1,199

Certificates of deposit
2,400

 

 

 

 
2,400

U.S. government agency securities
4,337

 

 

 

 
4,337

Total:
$
207,497

 
$

 
$

 
$

 
$
207,497

Short-term investments:
 
 
 
 
 
 
 
 
 
U.S. government agency securities
$
13,718

 
$
6

 
$
(6
)
 
$

 
$
13,718

Municipal bonds
1,402

 
1

 

 

 
1,403

Certificates of deposit
8,297

 

 

 

 
8,297

Commercial paper
11,430

 

 

 

 
11,430

Corporate debt securities
65,160

 
8

 
(61
)
 

 
65,107

Asset-backed securities
22,009

 
5

 
(25
)
 

 
21,989

Non-U.S. government agency securities
1,006

 

 
(2
)
 

 
1,004

Total:
$
123,022

 
$
20

 
$
(94
)
 
$

 
$
122,948

(1)
See Note 5. 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 5. Fair Value Measures for further discussion on fair values of cash equivalents and short-term investments.
Maturities of Available-for-Sale securities
As of January 31, 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
$
78,384

 
$
78,349

Due in 2-5 years
42,914

 
42,871

Due in 6-10 years
1,724

 
1,728

Total
$
123,022

 
$
122,948

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 
 January 31,
 
2016
 
2015
 
(in thousands)
Gain (loss) recorded in other income (expense), net
$
(3,763
)
 
$
(2,758
)
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 January 31, 2016
 
As of October 31, 2015
 
(in thousands)
Total gross notional amount
$
736,676

 
$
781,752

Net fair value
$
(16,412
)
 
$
(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 January 31, 2016
 
 
 
Other current assets
$
2,042

 
$
1

Accrued liabilities
$
18,031

 
$
424

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 
 January 31, 2016
 
 
 
 
 
 
 
Foreign exchange contracts
Revenue
 
$
(1,491
)
 
Revenue
 
$
212

Foreign exchange contracts
Operating expenses
 
(11,268
)
 
Operating expenses
 
(3,928
)
Total
 
 
$
(12,759
)
 
 
 
$
(3,716
)
Three months ended 
 January 31, 2015
 
 
 
 
 
 
 
Foreign exchange contracts
Revenue
 
$
2,966

 
Revenue
 
$
2,381

Foreign exchange contracts
Operating expenses
 
(15,795
)
 
Operating expenses
 
(3,436
)
Total
 
 
$
(12,829
)
 
 
 
$
(1,055
)
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 income statement
on derivatives
(ineffective
portion)(1)
 
Amount of gain (loss)
recognized in income
statement on
derivatives
(excluded from
effectiveness testing)(2)
 
(in thousands)
For the three months ended January 31, 2016
$
254

 
$
1,402

For the three months ended January 31, 2015
$
740

 
$
1,072


(1)
The ineffective portion includes forecast inaccuracies.
(2)
The portion excluded from effectiveness testing includes the discount earned or premium paid for the contracts.