0001262039-12-000051 | 10-Q | XBRL Viewer

Stockholder's Equity Stockholder's Equity (Tables)

9 Months Ended

Sep. 30, 2012

Stockholders' Equity Attributable to Parent [Abstract]

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

The following table summarizes the RSU activity and related information for the period presented below (in 000's, except per share amounts):



	Restricted Stock Units Outstanding
	Number Of Shares		Weighted- Average Grant-Date Fair Value per Share ($)
Balance—December 31, 2011	—		—
Granted	667		24.89
Forfeited	(14	)	24.89
Vested	—		—
Balance—September 30, 2012	653		24.89
RSUs expected to vest—September 30, 2012	602		24.89

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions And Allocation of Recognized Period Costs [Table Text Block]

The following table summarizes the weighted-average assumptions relating to our employee stock options:



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Expected term in years	—	4.6	4.6	4.6
Volatility (%)	—	46.2	46.4 - 51.9	40.4 - 46.2
Risk-free interest rate (%)	—	1.5	0.7 - 0.9	1.5 - 2.0
Dividend rate (%)	—	—	—	—
Estimated fair value ($)	—	8.07	11.13	7.85

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following table summarizes the stock option activity and related information for the period presented below (in 000's, except per share amounts and contractual life):



	Options Outstanding
	Number Of Shares		Weighted- Average Exercise Price ($)	Weighted- Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value ($)
Balance—December 31, 2011	21,389		9.10
Granted	3,401		26.38
Forfeited	(1,024	)	19.10
Exercised (aggregate intrinsic value of $83,313)	(4,238	)	5.92
Balance—September 30, 2012	19,528		12.32
Options vested and expected to vest—September 30, 2012	18,876		12.07	4.36	234,005
Options vested and exercisable—September 30, 2012	10,894		6.17	3.44	195,582

Schedule of Shares Available for Grant [Table Text Block]

The following table presents the equity based awards (including stock options and RSUs) available for future issuance (in 000's)




	Shares Available For Grant
Balance—December 31, 2011	17,399
Authorized	7,750
Options granted	(3,401	)
Options forfeited	1,024
Options exercised	—
RSUs granted	(667	)
RSUs forfeited	14
RSUs exercised	—
Balance—September 30, 2012	22,119

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

The following table summarizes the weighted-average assumptions relating to our ESPP:



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Expected term in years	0.5	0.5	0.5	0.5
Volatility (%)	43.1	59.9	53.7	59.9
Risk-free interest rate (%)	0.2	0.1	0.1	0.1
Dividend rate (%)	—	—	—	—
Estimated fair value ($)	6.63	6.56	7.06	6.56

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Type of Cost and Expense [Table Text Block]

Stock-based compensation expense is included in costs and expenses as follows ($ amounts in 000's):



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Cost of product revenue	85	64	237	129
Cost of services revenue	1,018	564	2,704	1,124
Research and development	2,525	1,516	6,774	2,954
Sales and marketing	3,879	2,708	10,797	6,289
General and administrative	1,323	882	3,416	2,178
	8,830	5,734	23,928	12,674

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

The following table summarizes stock-based compensation expense by award type ($ amounts in 000's):



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Options—employee	6,825	5,193	19,507	11,877
Options—non-employee	160	6	475	262
RSUs	576	—	576	—
ESPP	1,269	535	3,370	535
	8,830	5,734	23,928	12,674

Net Income Per Share

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Income Per Share

NET INCOME PER SHARE

Basic net income per share is computed by dividing net income by the weighted-average number of common shares outstanding during the period. Diluted net income per share is computed by dividing net income by the weighted-average number of common shares outstanding, plus the dilutive effects of stock options, restricted stock units (“RSUs”), and the employee stock purchase plan ("ESPP"). Potentially dilutive common shares are determined by applying the treasury stock method to the assumed exercise of outstanding stock options, RSUs, and ESPP.

A reconciliation of the numerator and denominator used in the calculation of basic and diluted net income per share is as follows ($ and share amounts in 000's, except per share amounts):



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Numerator:
Net income	17,206	17,917	45,329	45,998

Denominator:
Basic shares:
Weighted-average common shares outstanding - basic	158,751	153,265	157,416	151,958

Diluted shares:
Weighted-average common shares outstanding - basic	158,751	153,265	157,416	151,958
Effect of potentially dilutive securities:
Employee stock options, restricted stock units, and employee stock purchase plan	8,040	10,604	8,711	11,596
Weighted-average shares used to compute diluted net income per share	166,791	163,869	166,127	163,554
Net income per share:
Basic	0.11	0.12	0.29	0.30
Diluted	0.10	0.11	0.27	0.28

The following weighted-average shares of common stock were excluded from the computation of diluted net income per share for the periods presented as their effect would have been antidilutive (in 000's):



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Options to purchase common stock	5,686	5,058	6,847	3,375
RSUs	388	—	130	—
ESPP	303	186	300	186
	6,377	5,244	7,277	3,561

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2012	Oct. 23, 2012
Document Information [Line Items]
Entity Registrant Name	FORTINET INC
Entity Central Index Key	0001262039
Document Type	10-Q
Document Period End Date	Sep. 30, 2012
Amendment Flag	false
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		159,938,847

Commitments and Contingencies, Litigation (Details) $ in Millions	9 Months Ended
	Sep. 30, 2012 USD ($) patent
Loss Contingencies [Line Items]
Number of patents involved in litigation \| patent	2
Accrual for expected litigation settlement \| $	$ 1.0

Commitments and Contingencies, Warranties (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Movement in Standard Product Warranty Accrual [Roll Forward]
Accrued warranty balance - beginning of the period	$ 2,582	$ 1,878
Warranty costs incurred	(1,843)	(1,778)
Provision for warranty	1,604	2,103
Adjustments to previous estimates	(307)	379
Accrued warranty balance - end of the period	$ 2,036	$ 2,582
Hardware, Product Warranty [Member]
Product Warranty [Line Items]
Standard product warranty, term	1 year
Software, Product Warranty [Member]
Product Warranty [Line Items]
Standard product warranty, term	90 days

Commitments and Contingencies

9 Months Ended

Sep. 30, 2012

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

Leases—We lease certain of our facilities under various non-cancelable operating leases, which expire through 2017. Rent expense was $2.1 million for each of the three-month periods ended September 30, 2012 and September 30, 2011. Rent expense was $6.5 million and $6.1 million for the nine months ended September 30, 2012 and September 30, 2011, respectively.

The aggregate future non-cancelable minimum rental payments on operating leases as of September 30, 2012 are as follows ($ amounts in 000's):



	Rental Payment
Fiscal years:
2012 (remainder)	2,425
2013	7,799
2014	5,024
2015	2,291
Thereafter	579
Total	18,118

Contract Manufacturer and Other Commitments—Our independent contract manufacturers procure components and build our products based on our forecasts. These forecasts are based on estimates of future demand for our products, which are in turn based on historical trends and an analysis from our sales and marketing organizations, adjusted for overall market conditions. In order to reduce manufacturing lead times and plan for adequate component supply, we may issue purchase orders to some of our independent contract manufacturers which may not be cancelable. As of September 30, 2012, we had $23.8 million of open purchase orders with our independent contract manufacturers that are not cancelable.

In addition to commitments with contract manufacturers, we have open purchase orders and contractual obligations associated with our ordinary course of business for which we have not received goods or services. As of September 30, 2012, we had $3.9 million in other purchase commitments.

Warranties—We generally provide a one-year warranty on hardware products and a 90-day warranty on software. Accrued warranty activities are summarized as follows ($ amounts in 000's).



	For The Nine Months Ended And As Of		For The Year Ended And As Of
	September 30, 2012		December 31, 2011
Accrued warranty balance - beginning of the period	2,582		1,878
Warranty costs incurred	(1,843	)	(1,778	)
Provision for warranty	1,604		2,103
Adjustments to previous estimates	(307	)	379
Accrued warranty balance - end of the period	2,036		2,582

Litigation—In August 2009, Enhanced Security Research, LLC and Security Research Holdings LLC (collectively “ESR”), a non-practicing entity, filed a complaint against us in the United States District Court for the District of Delaware alleging infringement by us and other defendants of two patents. The plaintiffs are claiming unspecified damages and requesting an injunction against the alleged infringement. In June 2010, the Court granted our motion to stay pending the outcome of reexamination proceedings on both asserted patents. The U.S. Patent and Trademark Office (“PTO”) has rejected all of the claims of the patents in the suit and ESR appealed this result to the Board of Patent Appeals and Interferences (“BPAI”). In August 2012, the BPAI completed its review of both reexamination proceedings, and, after the BPAI's review, all claims of the asserted ESR patents remain rejected. We have determined that, as of this time, there is not a reasonable possibility that a loss has been incurred.

In April 2010, an individual, a former stockholder of Fortinet, filed a class action lawsuit against us claiming unspecified damages in the California Superior Court for the County of Los Angeles alleging violation of various California Corporations Code sections and related tort claims alleging misrepresentation and breach of fiduciary duty regarding the 2009 repurchase by Fortinet of shares of its stock while we were a privately-held company. In September 2010, the Court granted our motion to transfer the case to the California Superior Court for Santa Clara County and the plaintiff has filed several amended complaints in the Superior Court to add individual defendants, among other amendments. The Superior Court set a trial date for December 2012, but subsequently we have made progress in settlement discussions for this matter. We have determined that, as of this time, it is reasonably likely that to settle this matter, Fortinet will pay approximately $1.0 million, which has been accrued as of September 30, 2012.

In July 2010, Network Protection Sciences, LLC (“NPS”), a non-practicing entity, filed a complaint in the United States District Court for the Eastern District of Texas alleging patent infringement by us and other defendants. NPS is claiming unspecified damages, including treble damages for willful infringement, and requests an injunction against such alleged infringement. In December 2011, the United States District Court for the Eastern District of Texas ordered the case to be transferred to the Northern District of California. In June 2012, the United States District Court for the Northern District of California dismissed the other defendants for misjoinder, and the case is proceeding with Fortinet as the sole defendant. We have determined that, as of this time, there is not a reasonable possibility that a loss has been incurred.

In June 2012, we received a letter from SRI International (“SRI”) claiming that we infringed certain SRI patents. Subsequently, we filed a complaint in the United States District Court for the Northern District of California seeking declaratory relief and a judgment that the SRI patents were invalid, unenforceable and/or not infringed by any of our products or services. The case is currently in the very early stages, and we have determined that, as of this time, there is not a reasonable possibility that a loss has been incurred.

Indemnification—Under the indemnification provisions of our standard sales contracts, we agree to defend our customers against third-party claims asserting infringement of certain intellectual property rights, which may include patents, copyrights, trademarks, or trade secrets, and to pay judgments entered on such claims. Our exposure under these indemnification provisions is generally limited by the terms of our contracts to the total amount paid by our customer under the agreement. However, certain agreements include indemnification provisions that could potentially expose us to losses in excess of the amount received under the agreement. To date, there have been no claims under such indemnification provisions.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Employee Benefit Plan	9 Months Ended
Employee Benefit Plan	Sep. 30, 2012
Employee Benefit Plan [Abstract]
Employee Benefit Plans	EMPLOYEE BENEFIT PLAN The 401(k) tax-deferred savings plan (the “401(k) Plan”) permits participants to make contributions by salary deduction pursuant to Section 401(k) of the Internal Revenue Code of 1986, as amended. Under the 401(k) Plan, participating employees may defer a portion of their pre-tax earnings, up to the IRS annual contribution limit. In Canada, we have a Group Registered Retirement Savings Plan program (the “RRSP Plan”) which permits participants to make tax deductible contributions up to the maximum contribution limits under the Income Tax Act. Our aggregate matching contributions to the 401(k) Plan and RRSP Plan for the three and nine months ended September 30, 2012 were $0.4 million and $1.4 million, respectively. Our aggregate matching contributions to the 401(k) Plan and RRSP Plan for the three and nine months ended September 30, 2011 were $0.4 million and $1.2 million, respectively.

Property and Equipment - Net

9 Months Ended

Sep. 30, 2012

Property And Equipment Net [Abstract]

Property and Equipment - Net

PROPERTY AND EQUIPMENT—Net

Property and equipment consisted of the following ($ amounts in 000's):



	September 30, 2012		December 31, 2011
Land	13,895		—
Building and building improvements	610		—
Evaluation units	17,388		13,912
Computer equipment and software	17,449		12,219
Furniture and fixtures	1,400		1,307
Leasehold improvements and tooling	5,047		4,381
Total property and equipment	55,789		31,819
Less: accumulated depreciation	(29,769	)	(23,853	)
Property and equipment—net	26,020		7,966

In August 2012, we purchased certain real property including land and a building in Sunnyvale, California, for cash of $14.5 million, to support the growth in our business operations. Of the total cost, we allocated $13.9 million to land and $0.6 million to building and building improvements.

Depreciation expense was $2.7 million and $1.8 million during the three months ended September 30, 2012 and September 30, 2011, respectively. Depreciation expense was $7.2 million and $5.1 million during the nine months ended September 30, 2012 and September 30, 2011, respectively.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

+ References + Details

Inventory (Tables)

9 Months Ended

Sep. 30, 2012

Inventory Disclosure [Abstract]

Inventory [Table Text Block]

Inventory consisted of the following ($ amounts in 000's):



	September 30, 2012	December 31, 2011
Raw materials	4,927	3,447
Finished goods	21,255	12,802
Inventory	26,182	16,249

Commitments and Contingencies, Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 2,100	$ 2,100	$ 6,500	$ 6,100
Fiscal Years:
Rental Payment, 2012 (remainder)	2,425		2,425
Rental Payment, 2013	7,799		7,799
Rental Payment, 2014	5,024		5,024
Rental Payment, 2015	2,291		2,291
Operating Leases, Future Minimum Payments, Due Thereafter	579		579
Rental Payment, Total	$ 18,118		$ 18,118

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 17,206	$ 17,917	$ 45,329	$ 45,998
Other comprehensive income:
Foreign currency translation gains (losses)	1,092	(1,722)	867	(797)
Unrealized gains (losses) on investments	1,968	(1,347)	3,441	(1,194)
Unrealized losses on cash flow hedges	(19)	(119)	0	(194)
Tax provision related to items of other comprehensive income	(618)	0	(1,133)	0
Net change in accumulated other comprehensive income	2,423	(3,188)	3,175	(2,185)
Comprehensive income	$ 19,629	$ 14,729	$ 48,504	$ 43,813

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 8, 9, 10, 11, 12, 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
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-URI http://asc.fasb.org/extlink&oid=6518256

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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6508144

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 87-21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
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-Paragraph 38
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 10, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28, 29, 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
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-Paragraph 38
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A7
-Appendix A

+ Details

- Definition

Pre-tax change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges, net of reclassifications into earnings during the period, attributable to the parent entity. A cash flow hedge is a hedge of the exposure to variability in the cash flows of a recognized asset or liability or a forecasted transaction that is attributable to a particular risk. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 29
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=6921628&loc=SL4569643-111683

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=6921628&loc=SL4569616-111683

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=6921930&loc=SL4573702-111684

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Pre-tax adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains (losses), which is attributable to the parent entity. Includes gain (loss) on foreign currency forward exchange contracts. Includes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. Includes the gain (loss) on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain (loss) under FAS 52 and that have been designated and have qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.

+ References

+ Details

- Definition

This element represents Other Comprehensive Income or Loss, Net of Tax, for the period attributable to the parent entity. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment.

+ References

+ Details

- Definition

Tax effect of the change in accumulated other comprehensive income, that is, the tax effect on items included in other comprehensive income during the period that is attributable to the parent entity. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

+ References

+ Details

- Definition

Gross appreciation or the gross loss in value of the total of unsold available-for-sale securities during the period being reported (except when designated as a fair value hedge).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 13
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 24
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 17
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e653-108580

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 55
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=6920433&loc=d3e998-108581

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Investment and Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 612,970	$ 468,270
Unrealized Gains	1,973	273
Unrealized Losses	(106)	(1,846)
Total Fair Value	614,837	466,697
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	89,572	294,000
Less Than 12 Months, Unrealized Losses	(102)	(1,846)
12 Months or Greater, Fair Value	2,001	0
12 Months or Greater, Unrealized Losses	(4)	0
Total, Fair Value	91,573	294,000
Total, Unrealized Losses	(106)	(1,846)
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Due within one year	299,180	318,283
Long-term investments	315,657	148,414
Total Fair Value	614,837	466,697
U.S. government and agency securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	7,600	38,900
Unrealized Gains	1	10
Unrealized Losses	0	(2)
Total Fair Value	7,601	38,908
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value		10,996
Less Than 12 Months, Unrealized Losses		(2)
12 Months or Greater, Fair Value		0
12 Months or Greater, Unrealized Losses		0
Total, Fair Value		10,996
Total, Unrealized Losses		(2)
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Total Fair Value	7,601	38,908
Corporate debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	521,502	339,110
Unrealized Gains	1,856	219
Unrealized Losses	(102)	(1,832)
Total Fair Value	523,256	337,497
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	84,190	258,159
Less Than 12 Months, Unrealized Losses	(98)	(1,832)
12 Months or Greater, Fair Value	2,001	0
12 Months or Greater, Unrealized Losses	(4)	0
Total, Fair Value	86,191	258,159
Total, Unrealized Losses	(102)	(1,832)
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Total Fair Value	523,256	337,497
Commercial paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	33,814	51,025
Unrealized Gains	15	7
Unrealized Losses	0	(5)
Total Fair Value	33,829	51,027
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value		9,279
Less Than 12 Months, Unrealized Losses		(5)
12 Months or Greater, Fair Value		0
12 Months or Greater, Unrealized Losses		0
Total, Fair Value		9,279
Total, Unrealized Losses		(5)
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Total Fair Value	33,829	51,027
Municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	40,210	20,473
Unrealized Gains	94	36
Unrealized Losses	(4)	(5)
Total Fair Value	40,300	20,504
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value	5,382	8,067
Less Than 12 Months, Unrealized Losses	(4)	(5)
12 Months or Greater, Fair Value	0	0
12 Months or Greater, Unrealized Losses	0	0
Total, Fair Value	5,382	8,067
Total, Unrealized Losses	(4)	(5)
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Total Fair Value	40,300	20,504
Certificates of deposit and term deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	9,844	18,762
Unrealized Gains	7	1
Unrealized Losses	0	(2)
Total Fair Value	9,851	18,761
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less Than 12 Months, Fair Value		7,499
Less Than 12 Months, Unrealized Losses		(2)
12 Months or Greater, Fair Value		0
12 Months or Greater, Unrealized Losses		0
Total, Fair Value		7,499
Total, Unrealized Losses		(2)
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Total Fair Value	$ 9,851	$ 18,761

Commitments and Contingencies, Purchase Commitments (Details) $ in Millions	Sep. 30, 2012 USD ($)
Independent Contract Manufacturing [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Open purchase orders	$ 23.8
Other Purchases [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Open purchase orders	$ 3.9

Segment and Significant Customer Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Segment Reporting Information [Line Items]
Revenue	$ 136,268	$ 116,426	$ 382,477	$ 312,715
Property and equipment - net	26,020		26,020		$ 7,966
Americas [Member]
Segment Reporting Information [Line Items]
Revenue	57,217	50,028	155,570	126,214
Property and equipment - net	23,465		23,465		6,320
United States
Segment Reporting Information [Line Items]
Revenue	38,674	36,565	103,983	88,838
Property and equipment - net	18,499		18,499		2,225
Canada [Member]
Segment Reporting Information [Line Items]
Property and equipment - net	4,888		4,888		4,062
Other Americas [Member]
Segment Reporting Information [Line Items]
Revenue	18,543	13,463	51,587	37,376
Property and equipment - net	78		78		33
EMEA [Member]
Segment Reporting Information [Line Items]
Revenue	45,566	37,942	130,116	108,216
Property and equipment - net	1,348		1,348		805
APAC [Member]
Segment Reporting Information [Line Items]
Revenue	33,485	$ 28,456	96,791	$ 78,285
Property and equipment - net	$ 1,207		$ 1,207		$ 841

Investment and Fair Value Measurements

9 Months Ended

Sep. 30, 2012

Financial Instruments and Fair Value [Abstract]

Investment and Fair Value Measurements

INVESTMENTS AND FAIR VALUE MEASUREMENTS

The following table summarizes our investments ($ amounts in 000's):



	September 30, 2012
	Amortized Cost	Unrealized Gains	Unrealized Losses		Estimated Fair Value
U.S. government and agency securities	7,600	1	—		7,601
Corporate debt securities	521,502	1,856	(102	)	523,256
Commercial paper	33,814	15	—		33,829
Municipal bonds	40,210	94	(4	)	40,300
Certificates of deposit and term deposits	9,844	7	—		9,851
Total available-for-sale securities	612,970	1,973	(106	)	614,837



	December 31, 2011
	Amortized Cost	Unrealized Gains	Unrealized Losses		Estimated Fair Value
U.S. government and agency securities	38,900	10	(2	)	38,908
Corporate debt securities	339,110	219	(1,832	)	337,497
Commercial paper	51,025	7	(5	)	51,027
Municipal bonds	20,473	36	(5	)	20,504
Certificates of deposit and term deposits	18,762	1	(2	)	18,761
Total available-for-sale securities	468,270	273	(1,846	)	466,697

The following table shows the gross unrealized losses and the related fair values of our investments that have been in a continuous unrealized loss position, at September 30, 2012 ($ amounts in 000's):



	Less Than 12 Months			12 Months or Greater			Total
	Fair Value	Unrealized Losses		Fair Value	Unrealized Losses		Fair Value	Unrealized Losses
Corporate debt securities	84,190	(98	)	2,001	(4	)	86,191	(102	)
Municipal bonds	5,382	(4	)	—	—		5,382	(4	)
Total available-for-sale securities	89,572	(102	)	2,001	(4	)	91,573	(106	)

The following table shows the gross unrealized losses and the related fair values of our investments that have been in a continuous unrealized loss position, at December 31, 2011 ($ amounts in 000's):



	Less Than 12 Months			12 Months or Greater		Total
	Fair Value	Unrealized Losses		Fair Value	Unrealized Losses	Fair Value	Unrealized Losses
U.S. government and agency securities	10,996	(2	)	—	—	10,996	(2	)
Corporate debt securities	258,159	(1,832	)	—	—	258,159	(1,832	)
Commercial paper	9,279	(5	)	—	—	9,279	(5	)
Municipal bonds	8,067	(5	)	—	—	8,067	(5	)
Certificates of deposit and term deposits	7,499	(2	)	—	—	7,499	(2	)
Total available-for-sale securities	294,000	(1,846	)	—	—	294,000	(1,846	)

The contractual maturities of our investments are as follows ($ amounts in 000's):



	September 30, 2012	December 31, 2011
Due within one year	299,180	318,283
Due within one to three years	315,657	148,414
Total	614,837	466,697

Realized gains or losses from the sale of available-for-sale securities were not significant for any of the periods presented.

The following table presents the fair value of our financial assets measured at fair value on a recurring basis as of September 30, 2012 and December 31, 2011 ($ amounts in 000's):



	September 30, 2012			December 31, 2011
	Aggregate Fair Value	Quoted Prices in Active Markets For Identical Assets	Significant Other Observable Remaining Inputs	Aggregate Fair Value	Quoted Prices in Active Markets For Identical Assets	Significant Other Observable Remaining Inputs
		(Level 1)	(Level 2)		(Level 1)	(Level 2)
Assets:
U.S. government and agency securities	7,601	—	7,601	38,908	—	38,908
Corporate debt securities	523,256	—	523,256	337,497	—	337,497
Commercial paper	44,428	—	44,428	64,890	—	64,890
Municipal bonds	40,300	—	40,300	20,504	—	20,504
Certificates of deposit and term deposits	9,851	—	9,851	18,761	—	18,761
Money market funds	33,000	33,000	—	31,438	31,438	—
Total	658,436	33,000	625,436	511,998	31,438	480,560
Reported as:
Cash equivalents	43,599			45,301
Short-term investments	299,180			318,283
Long-term investments	315,657			148,414
Total	658,436			511,998

We did not hold financial assets or liabilities which were recorded at fair value using inputs in the Level 3 category as of September 30, 2012 or December 31, 2011. There were no transfers between Level 1 and Level 2 of the fair value hierarchy during the three and nine months ended September 30, 2012.

Foreign Currency Derivatives

9 Months Ended

Sep. 30, 2012

Foreign Currency Derivatives [Abstract]

Foreign Currency Derivatives

FOREIGN CURRENCY DERIVATIVES

The notional value of our outstanding forward exchange contracts that were entered into in order to hedge balance sheet accounts as of September 30, 2012 consisted of the following ($ amounts in 000's):



	Buy/Sell	Notional
Balance Sheet Contracts:
Currency
CAD	Buy	16,812
EUR	Buy	5,908
GBP	Buy	3,083

- Definition

The entire disclosure for foreign currency transactions and translation. This may include description of foreign currency transactions, foreign currency gains and losses, explanation of change in cumulative translation adjustment, description of effect of subsequent foreign currency exchange rate change, cumulative translation adjustment movement, foreign currency translation adjustment by component movement, translation adjustment for net investment hedge movement, adjustment for long-term intercompany transactions, schedule of long-term intercompany balances and any other foreign currency transactions and translation related items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 52
-Paragraph 30, 31, 32
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32157-110900

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30857-110895

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30700-110894

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
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-URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30690-110894

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901

+ Details

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
REVENUE:
Product	$ 63,027	$ 53,093	$ 177,923	$ 139,945
Services	69,782	57,835	197,332	159,192
Ratable and other revenue	3,459	5,498	7,222	13,578
Total revenue	136,268	116,426	382,477	312,715
COST OF REVENUE:
Product	23,995	20,606	66,997	51,272
Services	13,166	9,438	36,846	25,815
Ratable and other revenue	647	1,095	2,135	4,026
Total cost of revenue	37,808	31,139	105,978	81,113
GROSS PROFIT:
Product	39,032	32,487	110,926	88,673
Services	56,616	48,397	160,486	133,377
Ratable and other revenue	2,812	4,403	5,087	9,552
Total gross profit	98,460	85,287	276,499	231,602
OPERATING EXPENSES:
Research and development	20,498	16,834	60,553	47,197
Sales and marketing	44,743	36,934	131,038	105,548
General and administrative	7,449	5,359	19,473	16,473
Total operating expenses	72,690	59,127	211,064	169,218
OPERATING INCOME	25,770	26,160	65,435	62,384
INTEREST INCOME	1,318	904	3,606	2,560
OTHER (EXPENSE) INCOME—Net	(317)	60	(315)	(242)
INCOME BEFORE INCOME TAXES	26,771	27,124	68,726	64,702
PROVISION FOR INCOME TAXES	9,565	9,207	23,397	18,704
NET INCOME	$ 17,206	$ 17,917	$ 45,329	$ 45,998
Net income per share:
Basic	$ 0.11	$ 0.12	$ 0.29	$ 0.30
Diluted	$ 0.10	$ 0.11	$ 0.27	$ 0.28
Weighted-average shares outstanding:
Basic	158,751	153,265	157,416	151,958
Diluted	166,791	163,869	166,127	163,554

Property and Equipment - Net (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Property, Plant and Equipment, Net, by Type [Abstract]
Total property and equipment		$ 55,789		$ 55,789		$ 31,819
Less: accumulated depreciation		(29,769)		(29,769)		(23,853)
Property and equipment - net		26,020		26,020		7,966
Payments to acquire certain real property	$ 14,500
Depreciation expense		2,700	$ 1,800	7,200	$ 5,100
Land [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Total property and equipment		13,895		13,895		0
Building and building improvements [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Total property and equipment		610		610		0
Evaluation units [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Total property and equipment		17,388		17,388		13,912
Computer equipment and software [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Total property and equipment		17,449		17,449		12,219
Furniture and fixtures [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Total property and equipment		1,400		1,400		1,307
Leasehold improvements and tooling [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Total property and equipment		$ 5,047		$ 5,047		$ 4,381

Stockholder's Equity

9 Months Ended

Sep. 30, 2012

Equity [Abstract]

Stockholder's Equity

STOCKHOLDERS' EQUITY

Restricted Stock Units

Our 2009 Equity Incentive Plan (the “2009 Plan”) permits us to grant awards of stock options, stock appreciation rights, restricted stock, restricted stock units, and performance units or performance shares. In August 2012, we began to grant RSUs instead of stock options to employees, non-employees, and members of the board of directors. RSUs are payable in shares of our common stock as the periodic vesting requirements are satisfied. RSUs will vest over a four-year period from the date of grant if the employees, non-employees, or directors, as applicable, remain with us for the duration of the vesting period. The value of RSUs is determined based on the number of shares granted and the quoted price of our common stock on the date of grant.

The following table summarizes the RSU activity and related information for the period presented below (in 000's, except per share amounts):



	Restricted Stock Units Outstanding
	Number Of Shares		Weighted- Average Grant-Date Fair Value per Share ($)
Balance—December 31, 2011	—		—
Granted	667		24.89
Forfeited	(14	)	24.89
Vested	—		—
Balance—September 30, 2012	653		24.89
RSUs expected to vest—September 30, 2012	602		24.89

As of September 30, 2012, total compensation cost related to unvested RSUs that were granted to employees and non-employees under the 2009 Plan but not yet recognized was $16.0 million, net of estimated forfeitures. This cost is expected to be amortized on a straight-line basis over a weighted-average vesting period of 3.8 years.

Stock Options

The following table summarizes the weighted-average assumptions relating to our employee stock options:



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Expected term in years	—	4.6	4.6	4.6
Volatility (%)	—	46.2	46.4 - 51.9	40.4 - 46.2
Risk-free interest rate (%)	—	1.5	0.7 - 0.9	1.5 - 2.0
Dividend rate (%)	—	—	—	—
Estimated fair value ($)	—	8.07	11.13	7.85

The following table summarizes the stock option activity and related information for the period presented below (in 000's, except per share amounts and contractual life):



	Options Outstanding
	Number Of Shares		Weighted- Average Exercise Price ($)	Weighted- Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value ($)
Balance—December 31, 2011	21,389		9.10
Granted	3,401		26.38
Forfeited	(1,024	)	19.10
Exercised (aggregate intrinsic value of $83,313)	(4,238	)	5.92
Balance—September 30, 2012	19,528		12.32
Options vested and expected to vest—September 30, 2012	18,876		12.07	4.36	234,005
Options vested and exercisable—September 30, 2012	10,894		6.17	3.44	195,582

As of September 30, 2012, total compensation cost related to unvested stock options granted to employees under the 2009 plan but not yet recognized was $75.5 million, net of estimated forfeitures. This cost is expected to be amortized on a straight-line basis over a weighted-average period of 2.7 years.

Shares Available for Grant

The following table presents the equity based awards (including stock options and RSUs) available for future issuance (in 000's)




	Shares Available For Grant
Balance—December 31, 2011	17,399
Authorized	7,750
Options granted	(3,401	)
Options forfeited	1,024
Options exercised	—
RSUs granted	(667	)
RSUs forfeited	14
RSUs exercised	—
Balance—September 30, 2012	22,119

Employee Stock Purchase Plan

The following table summarizes the weighted-average assumptions relating to our ESPP:



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Expected term in years	0.5	0.5	0.5	0.5
Volatility (%)	43.1	59.9	53.7	59.9
Risk-free interest rate (%)	0.2	0.1	0.1	0.1
Dividend rate (%)	—	—	—	—
Estimated fair value ($)	6.63	6.56	7.06	6.56

Stock-based Compensation Expense

Stock-based compensation expense is included in costs and expenses as follows ($ amounts in 000's):



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Cost of product revenue	85	64	237	129
Cost of services revenue	1,018	564	2,704	1,124
Research and development	2,525	1,516	6,774	2,954
Sales and marketing	3,879	2,708	10,797	6,289
General and administrative	1,323	882	3,416	2,178
	8,830	5,734	23,928	12,674

The following table summarizes stock-based compensation expense by award type ($ amounts in 000's):



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Options—employee	6,825	5,193	19,507	11,877
Options—non-employee	160	6	475	262
RSUs	576	—	576	—
ESPP	1,269	535	3,370	535
	8,830	5,734	23,928	12,674

- Definition

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph d

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 1
-Section B
-Paragraph 7, 11A
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 3, 4, 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656

Reference 20: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 4.E)
-URI http://asc.fasb.org/extlink&oid=6228006&loc=d3e74512-122707

Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 22: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 23: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770

+ Details

Segment and Significant Customer Information

9 Months Ended

Sep. 30, 2012

Segment and Significant Customer Information [Abstract]

Segment and Significant Customer Information

SEGMENT AND SIGNIFICANT CUSTOMER INFORMATION

The following tables set forth revenue, and property and equipment—net, by geographic region ($ amounts in 000's):



	Three Months Ended		Nine Months Ended
Revenue	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Americas:
United States	38,674	36,565	103,983	88,838
Other Americas	18,543	13,463	51,587	37,376
Total Americas	57,217	50,028	155,570	126,214
Europe, Middle East and Africa (“EMEA”)	45,566	37,942	130,116	108,216
Asia Pacific and Japan (“APAC”)	33,485	28,456	96,791	78,285
Total revenue	136,268	116,426	382,477	312,715

During the three and nine months ended September 30, 2012, one distributor, Exclusive Networks, accounted for 10% and 11% of revenue, respectively. During the three and nine months ended September 30, 2011, no single customer or distributor accounted for 10% or more of total revenue.



Property and Equipment—Net	September 30, 2012	December 31, 2011
Americas:
United States	18,499	2,225
Canada	4,888	4,062
Other Americas	78	33
Total Americas	23,465	6,320
EMEA	1,348	805
APAC	1,207	841
Total property and equipment—net	26,020	7,966

Foreign Currency Derivatives (Tables)

9 Months Ended

Sep. 30, 2012

Foreign Currency Derivatives [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]



	Buy/Sell	Notional
Balance Sheet Contracts:
Currency
CAD	Buy	16,812
EUR	Buy	5,908
GBP	Buy	3,083

Net Income Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

A reconciliation of the numerator and denominator used in the calculation of basic and diluted net income per share is as follows ($ and share amounts in 000's, except per share amounts):



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Numerator:
Net income	17,206	17,917	45,329	45,998

Denominator:
Basic shares:
Weighted-average common shares outstanding - basic	158,751	153,265	157,416	151,958

Diluted shares:
Weighted-average common shares outstanding - basic	158,751	153,265	157,416	151,958
Effect of potentially dilutive securities:
Employee stock options, restricted stock units, and employee stock purchase plan	8,040	10,604	8,711	11,596
Weighted-average shares used to compute diluted net income per share	166,791	163,869	166,127	163,554
Net income per share:
Basic	0.11	0.12	0.29	0.30
Diluted	0.10	0.11	0.27	0.28

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]



	Three Months Ended		Nine Months Ended
	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Options to purchase common stock	5,686	5,058	6,847	3,375
RSUs	388	—	130	—
ESPP	303	186	300	186
	6,377	5,244	7,277	3,561

Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Finite-Lived Intangible Assets, Net [Abstract]
Finite-Lived Intangible Assets, Gross	$ 3,041		$ 3,041		$ 1,772
Finite-Lived Intangible Assets, Accumulated Amortization	1,145		1,145		394
Finite-Lived Intangible Assets, Net	1,896		1,896		$ 1,378
Amortization expense	$ 300	$ 200	700	$ 300
Fiscal Years:
2012 (remainder)			279
2013			964
2014			540
2015			108
2016			5
Total			$ 1,896

Stockholder's Equity (Details) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012 USD ($) yr $ / shares shares	Sep. 30, 2011 USD ($) yr $ / shares	Sep. 30, 2012 USD ($) yr $ / shares shares	Sep. 30, 2011 USD ($) yr $ / shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted (in shares) \| shares			(3,401)
Forfeited (in shares) \| shares			(1,024)
Exercised (in shares) \| shares			0
Share-based Compensation, Allocation in Financial Statements [Abstract]
Share-based compensation expense, employees and non-employees	$ 8,830	$ 5,734	$ 23,928	$ 12,674
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected term in years \| yr	0.5	0.5	0.5	0.5
Volatility (%)	43.10%	59.90%	53.70%	59.90%
Risk-free interest rate (%)	0.20%	0.10%	0.10%	0.10%
Dividend rate (%)	0.00%	0.00%	0.00%	0.00%
Estimated fair value ($) \| $ / shares	$ 6.63	$ 6.56	$ 7.06	$ 6.56
Share-based Compensation, Allocation in Financial Statements [Abstract]
Share-based compensation expense	$ 1,269	$ 535	$ 3,370	$ 535
Stock Options [Member]
Equity, Class of Treasury Stock [Line Items]
Total compensation cost not yet recognized	$ 75,500		$ 75,500
Total compensation cost not yet recognized, period for recognition (in years) \| yr			2.7
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected term in years \| yr	0.0	4.6	4.6	4.6
Volatility (%)	0.00%	46.20%
Risk-free interest rate (%)	0.00%	1.50%
Dividend rate (%)	0.00%	0.00%	0.00%	0.00%
Estimated fair value ($) \| $ / shares	$ 0.00	$ 8.07	$ 11.13	$ 7.85
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance - Beginning (in shares) \| shares			21,389
Granted (in shares) \| shares			3,401
Forfeited (in shares) \| shares			(1,024)
Exercised (in shares) \| shares			(4,238)
Balance - Ending (in shares) \| shares	19,528		19,528
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Balance - Beginning (in dollars per share) \| $ / shares			$ 9.10
Granted (in dollars per share) \| $ / shares	$ 26.38		26.38
Forfeited (in dollars per share) \| $ / shares	19.10		19.10
Exercised (in dollars per share) \| $ / shares	5.92		5.92
Balance - Ending (in dollars per share) \| $ / shares	$ 12.32		$ 12.32
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options vested and expected to vest, Outstanding (in shares) \| shares	18,876		18,876
Options vested and expected to vest, Weighted average exercise price (in dollars per share) \| $ / shares	$ 12.07		$ 12.07
Options vested and expected to vest, Weighted average remaining contractual life (in years) \| yr			4.36
Options vested and expected to vest, Aggregate intrinsic value	$ 234,005		$ 234,005
Options vested and exercisable, Outsanding (in shares) \| shares	10,894		10,894
Options vested and exercisable, Weighted average exercise price (in dollars per share) \| $ / shares	$ 6.17		$ 6.17
Options vested and exercisable, Weighted average remaining contractual life (in years) \| yr			3.44
Options vested and exercisable, Aggregate intrinsic value	$ 195,582		$ 195,582
Share-based Compensation, Allocation in Financial Statements [Abstract]
Share-based compensation expense	6,825	$ 5,193	19,507	$ 11,877
Options--non-employee	160	6	475	262
Restricted stock units [Member]
Equity, Class of Treasury Stock [Line Items]
Total compensation cost not yet recognized	16,000		$ 16,000
Total compensation cost not yet recognized, period for recognition (in years)			3.8
Share-based Compensation, Allocation in Financial Statements [Abstract]
Share-based compensation expense	576	0	$ 576	0
Research and Development Expense [Member]
Share-based Compensation, Allocation in Financial Statements [Abstract]
Share-based compensation expense, employees and non-employees	2,525	1,516	6,774	2,954
Selling and Marketing Expense [Member]
Share-based Compensation, Allocation in Financial Statements [Abstract]
Share-based compensation expense, employees and non-employees	3,879	2,708	10,797	6,289
General and Administrative Expense [Member]
Share-based Compensation, Allocation in Financial Statements [Abstract]
Share-based compensation expense, employees and non-employees	1,323	882	3,416	2,178
Product [Member] \| Cost of Sales [Member]
Share-based Compensation, Allocation in Financial Statements [Abstract]
Share-based compensation expense, employees and non-employees	85	64	237	129
Services [Member] \| Cost of Sales [Member]
Share-based Compensation, Allocation in Financial Statements [Abstract]
Share-based compensation expense, employees and non-employees	$ 1,018	$ 564	$ 2,704	$ 1,124
Minimum [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Volatility (%)			46.40%	40.40%
Risk-free interest rate (%)			0.70%	1.50%
Maximum [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Volatility (%)			51.90%	46.20%
Risk-free interest rate (%)			0.90%	2.00%

Net Income Per Share, Anti Dilutive Securities (Details) - Stock Compensation Plan [Member] - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)	6,377	5,244	7,277	3,561
Employee stock options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)	5,686	5,058	6,847	3,375
Restricted stock units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)	388	0	130	0
Employee stock purchase plans [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)	303	186	300	186

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Acquisition (Details) $ in Thousands		3 Months Ended	9 Months Ended
Acquisition (Details) $ in Thousands	Mar. 08, 2012 USD ($)	Sep. 30, 2012 USD ($)	Sep. 30, 2012 USD ($) yr	Sep. 30, 2011 USD ($)
Business Combinations [Abstract]
Cash payment	$ 950
Amount of total consideration withheld in escrow as security for acquiree's indemnification obligations	400		$ 201	$ 0
Price allocated to tangible assets	53
Price allocated to liabilities	43
Price allocated to indentifiable intangible assets	$ 940
Amortizable life of purchased indentifiable intangible assets (in years) \| yr			3
Amount released to selling sharesholders from escrow		$ 199

Deferred Revenues (Tables)

9 Months Ended

Sep. 30, 2012

Deferred Revenue Disclosure [Abstract]

Deferred Revenue, by Arrangement, Disclosure [Table Text Block]

Deferred revenue consisted of the following ($ amounts in 000's):



	September 30, 2012	December 31, 2011
Product	6,391	5,817
Services	322,936	272,843
Ratable and other revenue	10,751	16,173
Total deferred revenue	340,078	294,833
Reported as:
Current	230,562	206,928
Non-current	109,516	87,905
Total deferred revenue	340,078	294,833

Segment and Significant Customer Information, Customer Concentration (Details) - Sales Revenue [Member] - Customer Concentration Risk [Member] - customers	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011
Concentration Risk [Line Items]
Number of customers accounting for 10% or more of concentration risk	1	1	0
Concentration risk, percent	10.00%	11.00%

Segment and Significant Customer Information (Tables)

9 Months Ended

Sep. 30, 2012

Segment and Significant Customer Information [Abstract]

Revenue and property and equipment by geographic region [Table Text Block]

The following tables set forth revenue, and property and equipment—net, by geographic region ($ amounts in 000's):



	Three Months Ended		Nine Months Ended
Revenue	September 30, 2012	September 30, 2011	September 30, 2012	September 30, 2011
Americas:
United States	38,674	36,565	103,983	88,838
Other Americas	18,543	13,463	51,587	37,376
Total Americas	57,217	50,028	155,570	126,214
Europe, Middle East and Africa (“EMEA”)	45,566	37,942	130,116	108,216
Asia Pacific and Japan (“APAC”)	33,485	28,456	96,791	78,285
Total revenue	136,268	116,426	382,477	312,715



Property and Equipment—Net	September 30, 2012	December 31, 2011
Americas:
United States	18,499	2,225
Canada	4,888	4,062
Other Americas	78	33
Total Americas	23,465	6,320
EMEA	1,348	805
APAC	1,207	841
Total property and equipment—net	26,020	7,966

Investment and Fair Value Measurements, Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	$ 299,180	$ 318,283
Long-term investments	315,657	148,414
Estimate of Fair Value [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets, Fair Value Disclosure	658,436	511,998
Estimate of Fair Value [Member] \| Recurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets, Fair Value Disclosure	33,000	31,438
Estimate of Fair Value [Member] \| Recurring [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets, Fair Value Disclosure	625,436	480,560
Estimate of Fair Value [Member] \| U.S. government and agency securities [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	7,601	38,908
Estimate of Fair Value [Member] \| U.S. government and agency securities [Member] \| Recurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	0	0
Estimate of Fair Value [Member] \| U.S. government and agency securities [Member] \| Recurring [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	7,601	38,908
Estimate of Fair Value [Member] \| Corporate debt securities [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	523,256	337,497
Estimate of Fair Value [Member] \| Corporate debt securities [Member] \| Recurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	0	0
Estimate of Fair Value [Member] \| Corporate debt securities [Member] \| Recurring [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	523,256	337,497
Estimate of Fair Value [Member] \| Commercial paper [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	44,428	64,890
Estimate of Fair Value [Member] \| Commercial paper [Member] \| Recurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	0	0
Estimate of Fair Value [Member] \| Commercial paper [Member] \| Recurring [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	44,428	64,890
Estimate of Fair Value [Member] \| Municipal bonds [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	40,300	20,504
Estimate of Fair Value [Member] \| Municipal bonds [Member] \| Recurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	0	0
Estimate of Fair Value [Member] \| Municipal bonds [Member] \| Recurring [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	40,300	20,504
Estimate of Fair Value [Member] \| Certificates of deposit and term deposits [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	9,851	18,761
Estimate of Fair Value [Member] \| Certificates of deposit and term deposits [Member] \| Recurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	0	0
Estimate of Fair Value [Member] \| Certificates of deposit and term deposits [Member] \| Recurring [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	9,851	18,761
Estimate of Fair Value [Member] \| Money market funds [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	33,000	31,438
Estimate of Fair Value [Member] \| Money market funds [Member] \| Recurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	33,000	31,438
Estimate of Fair Value [Member] \| Money market funds [Member] \| Recurring [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	0	0
Reported as [Member] \| Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets, Fair Value Disclosure	658,436	511,998
Reported as [Member] \| Recurring [Member] \| Cash equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure	43,599	45,301
Reported as [Member] \| Recurring [Member] \| Short-term investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	299,180
Available-for-sale securities, Fair Value Disclosure		318,283
Reported as [Member] \| Recurring [Member] \| Long-term investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, Fair Value Disclosure		$ 148,414
Long-term investments	$ 315,657

Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

The aggregate future non-cancelable minimum rental payments on operating leases as of September 30, 2012 are as follows ($ amounts in 000's):



	Rental Payment
Fiscal years:
2012 (remainder)	2,425
2013	7,799
2014	5,024
2015	2,291
Thereafter	579
Total	18,118

Schedule of Product Warranty Liability [Table Text Block]

Accrued warranty activities are summarized as follows ($ amounts in 000's).



	For The Nine Months Ended And As Of		For The Year Ended And As Of
	September 30, 2012		December 31, 2011
Accrued warranty balance - beginning of the period	2,582		1,878
Warranty costs incurred	(1,843	)	(1,778	)
Provision for warranty	1,604		2,103
Adjustments to previous estimates	(307	)	379
Accrued warranty balance - end of the period	2,036		2,582

Investment and Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2012

Financial Instruments and Fair Value [Abstract]

Summary of Investments [Table Text Block]

The following table summarizes our investments ($ amounts in 000's):



	September 30, 2012
	Amortized Cost	Unrealized Gains	Unrealized Losses		Estimated Fair Value
U.S. government and agency securities	7,600	1	—		7,601
Corporate debt securities	521,502	1,856	(102	)	523,256
Commercial paper	33,814	15	—		33,829
Municipal bonds	40,210	94	(4	)	40,300
Certificates of deposit and term deposits	9,844	7	—		9,851
Total available-for-sale securities	612,970	1,973	(106	)	614,837



	December 31, 2011
	Amortized Cost	Unrealized Gains	Unrealized Losses		Estimated Fair Value
U.S. government and agency securities	38,900	10	(2	)	38,908
Corporate debt securities	339,110	219	(1,832	)	337,497
Commercial paper	51,025	7	(5	)	51,027
Municipal bonds	20,473	36	(5	)	20,504
Certificates of deposit and term deposits	18,762	1	(2	)	18,761
Total available-for-sale securities	468,270	273	(1,846	)	466,697

Schedule of Unrealized Loss on Investments [Table Text Block]



	Less Than 12 Months			12 Months or Greater			Total
	Fair Value	Unrealized Losses		Fair Value	Unrealized Losses		Fair Value	Unrealized Losses
Corporate debt securities	84,190	(98	)	2,001	(4	)	86,191	(102	)
Municipal bonds	5,382	(4	)	—	—		5,382	(4	)
Total available-for-sale securities	89,572	(102	)	2,001	(4	)	91,573	(106	)



	Less Than 12 Months			12 Months or Greater		Total
	Fair Value	Unrealized Losses		Fair Value	Unrealized Losses	Fair Value	Unrealized Losses
U.S. government and agency securities	10,996	(2	)	—	—	10,996	(2	)
Corporate debt securities	258,159	(1,832	)	—	—	258,159	(1,832	)
Commercial paper	9,279	(5	)	—	—	9,279	(5	)
Municipal bonds	8,067	(5	)	—	—	8,067	(5	)
Certificates of deposit and term deposits	7,499	(2	)	—	—	7,499	(2	)
Total available-for-sale securities	294,000	(1,846	)	—	—	294,000	(1,846	)

Investments Classified by Contractual Maturity Date [Table Text Block]

The contractual maturities of our investments are as follows ($ amounts in 000's):



	September 30, 2012	December 31, 2011
Due within one year	299,180	318,283
Due within one to three years	315,657	148,414
Total	614,837	466,697

Fair Value, by Balance Sheet Grouping and Measurement Inputs, Disclosure [Table Text Block]

The following table presents the fair value of our financial assets measured at fair value on a recurring basis as of September 30, 2012 and December 31, 2011 ($ amounts in 000's):



	September 30, 2012			December 31, 2011
	Aggregate Fair Value	Quoted Prices in Active Markets For Identical Assets	Significant Other Observable Remaining Inputs	Aggregate Fair Value	Quoted Prices in Active Markets For Identical Assets	Significant Other Observable Remaining Inputs
		(Level 1)	(Level 2)		(Level 1)	(Level 2)
Assets:
U.S. government and agency securities	7,601	—	7,601	38,908	—	38,908
Corporate debt securities	523,256	—	523,256	337,497	—	337,497
Commercial paper	44,428	—	44,428	64,890	—	64,890
Municipal bonds	40,300	—	40,300	20,504	—	20,504
Certificates of deposit and term deposits	9,851	—	9,851	18,761	—	18,761
Money market funds	33,000	33,000	—	31,438	31,438	—
Total	658,436	33,000	625,436	511,998	31,438	480,560
Reported as:
Cash equivalents	43,599			45,301
Short-term investments	299,180			318,283
Long-term investments	315,657			148,414
Total	658,436			511,998

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References + Details

Property and Equipment - Net (Tables)

9 Months Ended

Sep. 30, 2012

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

Property and equipment consisted of the following ($ amounts in 000's):



	September 30, 2012		December 31, 2011
Land	13,895		—
Building and building improvements	610		—
Evaluation units	17,388		13,912
Computer equipment and software	17,449		12,219
Furniture and fixtures	1,400		1,307
Leasehold improvements and tooling	5,047		4,381
Total property and equipment	55,789		31,819
Less: accumulated depreciation	(29,769	)	(23,853	)
Property and equipment—net	26,020		7,966

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 45,329	$ 45,998
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	8,076	5,114
Amortization of investment premiums	10,002	9,508
Stock-based compensation	23,928	12,674
Excess tax benefit from employee stock option plans	(9,611)	(9,264)
Other non-cash items, net	893	22
Changes in operating assets and liabilities:
Accounts receivable—net	5,680	(3,559)
Inventory	(14,977)	(1,478)
Deferred tax assets	(4,515)	(5,546)
Prepaid expenses and other current assets	(71)	(1,009)
Other assets	1,885	312
Accounts payable	3,049	2,514
Accrued liabilities	2,662	4,867
Accrued payroll and compensation	1,563	1,582
Other liabilities	(1,361)	2,664
Deferred revenue	45,192	22,471
Income taxes payable	15,849	23,413
Net cash provided by operating activities	133,573	110,283
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of investments	(523,389)	(407,110)
Sales of investments	25,768	75,582
Maturities and sales of investments	343,174	204,099
Purchases of property and equipment	(20,283)	(2,785)
Payment made in connection with business acquisition	(749)	(2,623)
Net cash used in investing activities	(175,479)	(132,837)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	36,006	14,018
Excess tax benefit from employee stock option plans	9,611	9,264
Net cash provided by financing activities	45,617	23,282
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS	(235)	(957)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	3,476	(229)
CASH AND CASH EQUIVALENTS—Beginning of period	71,990	66,859
CASH AND CASH EQUIVALENTS—End of period	75,466	66,630
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid (refunded) for income taxes	10,335	(689)
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Purchase of property and equipment not yet paid	722	301
Liability incurred in connection with business acquisition	$ 201	$ 0

Condensed Consolidated Balance Sheets Parenthetical - USD ($) shares in Thousands, $ in Thousands	Sep. 30, 2012	Dec. 31, 2011
Allowance for doubtful accounts	$ 234	$ 336
Common Stock, par value	$ 0.001	$ 0.001
Common Stock, shares authorized	300,000	300,000
Common Stock, shares issued	161,217	156,401
Common Stock, shares outstanding	159,808	154,992

Acquisition	9 Months Ended
Acquisition	Sep. 30, 2012
Business Combinations [Abstract]
Acquisitions	ACQUISITION On March 8, 2012, we completed the acquisition of IntruGuard Devices (“IntruGuard”), a leading supplier of Intelligent Availability Protection Systems, for a total consideration of $950,000. Of the total consideration, $400,000 is being withheld in escrow as security for IntruGuard's indemnification obligations. We accounted for this acquisition as a purchase of a business and, accordingly, the total purchase price has been allocated to tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair market values as of the acquisition date. The purchase price allocation resulted in purchased tangible assets of $53,000 and liabilities of $43,000, and purchased identifiable intangible assets of $940,000. Identifiable intangible assets consist of purchased technology. The fair value assigned to identifiable intangible assets acquired was determined using the income approach, which discounts expected future cash flows to present value using estimates and assumptions determined by us. Purchased identifiable intangible assets are being expensed as Cost of revenue on a straight-line basis over three years. Of the $400,000 previously withheld in escrow, $199,000 was released to the selling shareholders during the three months ended September 30, 2012.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 88-16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51, 52
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Appendix F
-Paragraph F4
-Subparagraph e

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Paragraph 67-73
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2012
Income Taxes [Abstract]
Income Taxes	INCOME TAXES The effective tax rate was 36% for the three months ended September 30, 2012, compared to an effective tax rate of 34% for the three months ended September 30, 2011. The effective tax rate was 34% for the nine months ended September 30, 2012, compared to an effective tax rate of 29% for the nine months ended September 30, 2011. The provision for income taxes for the periods presented is comprised of foreign income taxes, U.S. federal and state taxes, and withholding tax. As of September 30, 2012 and December 31, 2011, unrecognized tax benefits were $25.2 million and $19.3 million, respectively. The total amount of $25.2 million in unrecognized tax benefits, if recognized, would favorably impact the effective tax rate. It is our policy to classify accrued interest and penalties related to unrecognized tax benefits in the provision for income taxes. As of September 30, 2012, we had approximately $1.5 million accrued for estimated interest related to uncertain tax positions. We do not expect any material unrecognized tax benefits to expire within the next twelve months.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

+ Details

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2012	Dec. 31, 2011
CURRENT ASSETS:
Cash and cash equivalents	$ 75,466	$ 71,990
Short-term investments	299,180	318,283
Accounts receivable, net of allowance for doubtful accounts of $234 and $336 at September 30, 2012 and December 31, 2011, respectively	89,843	95,522
Inventory	26,182	16,249
Deferred tax assets	7,088	7,578
Prepaid expenses and other current assets	16,893	13,948
Total current assets	514,652	523,570
PROPERTY AND EQUIPMENT—Net	26,020	7,966
DEFERRED TAX ASSETS—Non-current	50,393	46,523
LONG-TERM INVESTMENTS	315,657	148,414
OTHER ASSETS	6,546	8,274
TOTAL ASSETS	913,268	734,747
CURRENT LIABILITIES:
Accounts payable	23,160	19,768
Accrued liabilities	19,032	15,971
Accrued payroll and compensation	25,940	24,197
Deferred revenue	230,562	206,928
Total current liabilities	298,694	266,864
DEFERRED REVENUE—Non-current	109,516	87,905
OTHER NON-CURRENT LIABILITIES	26,589	21,624
Total liabilities	434,799	376,393
COMMITMENTS AND CONTINGENCIES (Note 7)
STOCKHOLDERS' EQUITY:
Common stock, $0.001 par value - 300,000 shares authorized; 161,217 and 156,401 shares issued and 159,808 and 154,992 shares outstanding at September 30, 2012 and December 31, 2011, respectively	161	156
Additional paid-in-capital	388,632	317,026
Treasury stock	(2,995)	(2,995)
Accumulated other comprehensive income	3,577	402
Retained earnings	89,094	43,765
Total stockholders' equity	478,469	358,354
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 913,268	$ 734,747

Foreign Currency Derivatives (Details) $ in Thousands	Sep. 30, 2012 USD ($)
Canada, Dollars
Derivative [Line Items]
Notional Amount of Foreign Currency Derivative Purchase Contracts	$ 16,812
Euro Member Countries, Euro
Derivative [Line Items]
Notional Amount of Foreign Currency Derivative Purchase Contracts	5,908
United Kingdom, Pounds
Derivative [Line Items]
Notional Amount of Foreign Currency Derivative Purchase Contracts	$ 3,083

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Income Taxes [Abstract]
Effective income tax rate	36.00%	34.00%	34.00%	29.00%
Unrecognized tax benefits	$ 25.2		$ 25.2		$ 19.3
Unrecognized tax benefits that would impact effective tax rate	25.2		25.2
Unrecognized tax benefits, interest on income taxes accrued	$ 1.5		$ 1.5

Deferred Revenues

9 Months Ended

Sep. 30, 2012

Deferred Revenue Disclosure [Abstract]

Deferred Revenue

DEFERRED REVENUE

Deferred revenue consisted of the following ($ amounts in 000's):



	September 30, 2012	December 31, 2011
Product	6,391	5,817
Services	322,936	272,843
Ratable and other revenue	10,751	16,173
Total deferred revenue	340,078	294,833
Reported as:
Current	230,562	206,928
Non-current	109,516	87,905
Total deferred revenue	340,078	294,833

Inventory

9 Months Ended

Sep. 30, 2012

Inventory Disclosure [Abstract]

Inventory

INVENTORY

Inventory consisted of the following ($ amounts in 000's):



	September 30, 2012	December 31, 2011
Raw materials	4,927	3,447
Finished goods	21,255	12,802
Inventory	26,182	16,249

Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2012

Accounting Policies [Abstract]

Presentation and Preparation of Consolidated Financial Statements [Policy Text Block]

Basis of Presentation and Preparation

The unaudited condensed consolidated financial statements of Fortinet and its wholly owned subsidiaries (collectively, the “Company,” “we,” “us,” or “our”) have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information as well as the instructions to Form 10-Q and the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements, and should be read in conjunction with our audited consolidated financial statements as of and for the fiscal year ended December 31, 2011, contained in our Annual Report on Form 10-K (“Form 10-K”) filed with the SEC on February 28, 2012. In the opinion of management, all adjustments, including normal recurring accruals, considered necessary for a fair presentation have been included. The results of operations for the three and nine months ended September 30, 2012 are not necessarily indicative of the operating results for any subsequent quarter, for the full year or any future periods.

The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates.

There have been no substantial changes in our significant accounting policies since the fiscal year ended December 31, 2011.

Revenue Recognition, Policy [Policy Text Block]

Revenue Recognition—In October 2009, the Financial Accounting Standards Board (“FASB”) amended the Accounting Standards Codification (“ASC”) as summarized in Accounting Standards Update (“ASU”) No. 2009-13, Revenue Recognition (Topic 605): Multiple-Deliverable Revenue Arrangements (“ASU 2009-13”), and ASU No. 2009-14, Software (Topic 985): Certain Revenue Arrangements That Include Software Elements (“ASU 2009-14”). ASU 2009-13 amended the accounting for multiple-element arrangements to provide guidance on how the deliverables in an arrangement should be separated and eliminates the use of the residual method. ASU 2009-13 also requires an entity to allocate revenue using the relative selling price method. The standard establishes a hierarchy of evidence to determine the stand-alone selling price of a deliverable based on vendor-specific objective evidence (“VSOE”), third party evidence (“TPE”), and the best estimated selling price (“BESP”). If VSOE is available, it would be used to determine the selling price of a deliverable. If VSOE is not available, the entity would determine whether TPE is available. If so, TPE must be used to determine the selling price. If TPE is not available, then the BESP would be used. ASU 2009-14 amended industry specific revenue accounting guidance for software and software related transactions to exclude from its scope tangible products containing software components and non-software components that function together to deliver the product's essential functionality.

This guidance does not generally change the units of accounting for our revenue transactions. Most non-software products and services qualify as separate units of accounting because they have value to the customer on a standalone basis and our revenue arrangements generally do not include a right of return relative to delivered products.

The majority of our products are hardware appliances containing software components that function together to provide the essential functionality of the product, therefore, our hardware appliances are considered non-software deliverables and are no longer within the scope of Software Revenue Recognition (“ASC 985-605”).

Our product revenue also includes software products that may operate on the hardware appliances, but are not considered essential to the functionality of the hardware and continue to be subject to the guidance at ASC 985-605, which remains unchanged. Certain of our software, when sold with our appliances, is considered essential to its functionality and as a result is no longer accounted for under ASC 985-605; however, this same software if sold separately is accounted for under the guidance at ASC 985-605.

For all transactions originating or materially modified after December 31, 2010, we recognize revenue in accordance with ASU 2009-13. Certain arrangements with multiple deliverables may continue to have software deliverables that are subject to ASC 985-605 along with non-software deliverables that are subject to ASU 2009-13. When a sales arrangement contains multiple elements, such as hardware appliances, software, customer support services, and/or professional services, we allocate revenue to each element based on the aforementioned selling price hierarchy. In multiple element arrangements where software is more-than-incidental, revenue is allocated to each separate unit of accounting for each of the non-software deliverables and to the software deliverables as a group using the relative selling prices of each of the deliverables in the arrangement based on the selling price hierarchy in ASU 2009-13.

VSOE of fair value for elements of an arrangement is based upon the normal pricing and discounting practices for those services when sold separately. In determining VSOE, we require that a substantial majority of the selling prices for a service fall within a reasonably narrow pricing range, generally evidenced by a substantial majority of such historical stand-alone transactions falling within a reasonably narrow range of the median rates. In addition, we consider major segments, geographies, customer classifications, and other variables in determining VSOE.

We are typically not able to determine TPE for our products or services. TPE is determined based on competitor prices for similar deliverables when sold separately. Generally, our go-to-market strategy differs from that of our peers and our offerings contain a significant level of differentiation such that the comparable pricing of products with similar functionality cannot be obtained. Furthermore, we are unable to reliably determine what similar competitor products' selling prices are on a stand-alone basis.

For our hardware appliances, we use BESP as our selling price. For our support and other services, we generally use VSOE as our selling price. When we are unable to establish a selling price using VSOE for our support and other services, we use BESP in our allocation of arrangement consideration. The objective of BESP is to determine the price at which we would transact a sale if the product or service were sold on a stand-alone basis. We determine BESP for a product or service by considering multiple factors including, but not limited to, cost of products, gross margin objectives, pricing practices, geographies, customer classes and distribution channels. We review our BESP estimates on a quarterly basis to coincide with our VSOE review process.

We recognize revenue for our software sales based on software revenue recognition guidance pursuant to ASC 985-605. Under ASC 985-605, we use the residual method to recognize revenue when a product agreement includes one or more elements to be delivered and VSOE of fair value for all undelivered elements exists. If evidence of the fair value of one or more undelivered elements does not exist, all revenue is generally deferred and recognized when delivery of those elements occurs or when fair value can be established. When the undelivered element for which we do not have VSOE of fair value is support, revenue for the entire arrangement is recognized ratably over the support period.

We derive revenue from sales of products, including appliances and software, and services, including subscription, support and other services. Our appliances include operating system software that is integrated into the appliance hardware and is deemed essential to its functionality. As a result, we account for revenue in accordance with ASU 2009-13 and all related interpretations.

Revenue is recognized when all of the following criteria have been met:


•	Persuasive evidence of an arrangement exists. Binding contracts or purchase orders are generally used to determine the existence of an arrangement.


•	Delivery has occurred. Delivery occurs when we fulfill an order and title and risk of loss has been transferred or upon delivery of the service contract registration code.


•	The fee is fixed or determinable. We assess whether the fee is fixed or determinable based on the payment terms associated with the transaction. In the event payment terms differ from our standard business practices, the fees are deemed to be not fixed or determinable and revenue is recognized when the payments become due, provided the remaining criteria for revenue recognition have been met.


•	Collectability is probable. We assess collectability based primarily on creditworthiness as determined by credit checks and analysis, as well as payment history. Payment terms generally range from 30 to 90 days from invoice date.

For arrangements which include end-customer acceptance criteria, revenue is recognized upon acceptance. We recognize product revenue on sales to distributors that have no general right of return and direct sales to end-customers upon shipment, once all other revenue recognition criteria have been met. We also recognize revenue upon sell-through for distributor agreements that allow for rights of return. Such returns are estimated and recorded as a reduction to revenue. Substantially all of our products have been sold in combination with services, which consist of subscriptions and/or support. Subscription services provide access to our antivirus, intrusion prevention, web filtering, and anti-spam functionality. Support services include rights to unspecified software upgrades, maintenance releases and patches, telephone and Internet access to technical support personnel, and hardware support.

The subscription and support services start on the date the customer registers the appliance. The customer is then entitled to service for the stated contractual period beginning on the registration date.

We offer certain sales incentives to channel partners. We reduce revenue for estimates of sales returns and allowances. Additionally, in limited circumstances we may permit end-customers, distributors and resellers to return our products, subject to varying limitations, for a refund within a reasonably short period from the date of purchase. We estimate and record reserves for sales incentives and sales returns based on historical experience.

- Definition

Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction.

+ References + Details

Stockholders' Equity (RSU Activity) (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2012 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Granted	(667)
Forfeited	(14)
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Balance—December 31, 2011	0
Granted	667
Forfeited	(14)
Vested	0
Balance—September 30, 2012	653
RSUs expected to vest—September 30, 2012	602
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Balance—December 31, 2011, Weighted Average Grant Date Fair Value \| $ / shares	$ 0
Granted, Weighted Average Grant Date Fair Value \| $ / shares	24.89
Forfeited, Weighted Average Grant Date Fair Value \| $ / shares	24.89
Vested, Weighted Average Grant Date Fair Value \| $ / shares	0.00
Balance—September 30, 2012, Weighted Average Grant Date Fair Value \| $ / shares	24.89
RSUs expected to vest, Weighted Average Grant Date Fair Value \| $ / shares	$ 24.89

Employee Benefit Plan (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Employee Benefit Plan (Details) - USD ($) $ in Millions	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Employee Benefit Plan [Abstract]
Matching contributions to the RRSP and 401(k) plans	$ 0.4	$ 0.4	$ 1.4	$ 1.2

Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2012

Summary of Significant Accounting Policies [Abstract]

Summary of Significant Accounting Policies

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation and Preparation

There have been no substantial changes in our significant accounting policies since the fiscal year ended December 31, 2011.

Revenue is recognized when all of the following criteria have been met:


•	Persuasive evidence of an arrangement exists. Binding contracts or purchase orders are generally used to determine the existence of an arrangement.


•	Delivery has occurred. Delivery occurs when we fulfill an order and title and risk of loss has been transferred or upon delivery of the service contract registration code.


•	The fee is fixed or determinable. We assess whether the fee is fixed or determinable based on the payment terms associated with the transaction. In the event payment terms differ from our standard business practices, the fees are deemed to be not fixed or determinable and revenue is recognized when the payments become due, provided the remaining criteria for revenue recognition have been met.


•	Collectability is probable. We assess collectability based primarily on creditworthiness as determined by credit checks and analysis, as well as payment history. Payment terms generally range from 30 to 90 days from invoice date.

Recently Adopted Accounting Pronouncements

In May 2011, the FASB issued ASU No. 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and International Financial Reporting Standards (Topic 820) - Fair Value Measurement (“ASU 2011-04”), to provide a consistent definition of fair value and ensure that the fair value measurement and disclosure requirements are similar between U.S. GAAP and International Financial Reporting Standards. ASU 2011-04 changes certain fair value measurement principles and enhances the disclosure requirements particularly for Level 3 fair value measurements. We adopted ASU 2011-04 in the first quarter of 2012. The measurement provisions of this guidance did not impact our condensed consolidated financial statements.

In June 2011, the FASB issued ASU No. 2011-05, Comprehensive Income (Topic 220)-Presentation of Comprehensive Income (“ASU 2011-05”), to require an entity to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. ASU 2011-05 eliminates the option to present the components of other comprehensive income as part of the statement of stockholders' equity. We adopted ASU 2011-05 in the first quarter of 2012 and applied it retrospectively. We elected to present the comprehensive income in two separate but consecutive statements within our condensed consolidated financial statements.

Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2012

Finite-Lived Intangible Assets [Abstract]

Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block]

The following table presents the detail of our intangible assets with definite lives included in other assets ($ amounts in 000's):



	September 30, 2012			December 31, 2011
	Gross	Accumulated Amortization	Net	Gross	Accumulated Amortization	Net
Existing technology	3,041	1,145	1,896	1,772	394	1,378

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The following table summarizes estimated future amortization expense of intangible assets with definite lives as of September 30, 2012 ($ amounts in 000's):



	Amount
Fiscal Years:
2012 (remainder)	279
2013	964
2014	540
2015	108
2016	5
Total	1,896

Intangible Assets

9 Months Ended

Sep. 30, 2012

Finite-Lived Intangible Assets [Abstract]

Intangible Assets

INTANGIBLE ASSETS

The following table presents the detail of our intangible assets with definite lives included in other assets ($ amounts in 000's):



	September 30, 2012			December 31, 2011
	Gross	Accumulated Amortization	Net	Gross	Accumulated Amortization	Net
Existing technology	3,041	1,145	1,896	1,772	394	1,378

Amortization expense was $0.3 million and $0.2 million for the three months ended September 30, 2012 and September 30, 2011, respectively, and $0.7 million and $0.3 million for the nine months ended September 30, 2012 and September 30, 2011, respectively. The following table summarizes estimated future amortization expense of intangible assets with definite lives as of September 30, 2012 ($ amounts in 000's):



	Amount
Fiscal Years:
2012 (remainder)	279
2013	964
2014	540
2015	108
2016	5
Total	1,896

Deferred Revenues (Details) - USD ($) $ in Thousands	Sep. 30, 2012	Dec. 31, 2011
Deferred Revenue Arrangement [Line Items]
Current	$ 230,562	$ 206,928
Non-current	109,516	87,905
Total deferred revenue	340,078	294,833
Product [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	6,391	5,817
Services [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	322,936	272,843
Ratable and other revneue [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 10,751	$ 16,173

- Definition

The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References + Details

Net Income Per Share, Calculation of Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Earnings Per Share [Abstract]
Net income	$ 17,206	$ 17,917	$ 45,329	$ 45,998
Basic shares:
Weighted-average common shares outstanding-basic (in shares)	158,751	153,265	157,416	151,958
Diluted shares:
Weighted-average common shares outstanding-basic (in shares)	158,751	153,265	157,416	151,958
Effect of potentially dilutive securities:
Employee stock options, restricted stock units, and purchase plan (in shares)	8,040	10,604	8,711	11,596
Weighted-average shares used to compute diluted net income per share (in shares)	166,791	163,869	166,127	163,554
Net income per share:
Basic (in dollars per share)	$ 0.11	$ 0.12	$ 0.29	$ 0.30
Diluted (in dollars per share)	$ 0.10	$ 0.11	$ 0.27	$ 0.28

Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2012	Dec. 31, 2011
Inventory, Net [Abstract]
Raw materials	$ 4,927	$ 3,447
Finished goods	21,255	12,802
Inventory	$ 26,182	$ 16,249

Stockholders' Equity (Shares Available for Grant) (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2012 shares
Share-based Compensation Arrangement by Share-based Payment Award, Shares Available for Grant [Roll Forward]
Balance—December 31, 2011	17,399
Authorized	7,750
Options granted	(3,401)
Options forfeited	1,024
Options exercised	0
RSUs granted	(667)
RSUs forfeited	14
RSUs exercised	0
Balance—September 30, 2012	22,119