10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

______________________________________________ 

FORM 10-Q

 ______________________________________________

(Mark One)

x	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the quarterly period ended September 30, 2014

or

o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the transition period from                      to

Commission file number 0-27275

______________________________________________ 

Akamai Technologies, Inc.

(Exact name of registrant as specified in its charter)

Delaware	04-3432319
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

150 Broadway

Cambridge, MA 02142

(617) 444-3000

(Address, Including Zip Code, and Telephone Number,

Including Area Code, of Registrant’s Principal Executive Offices)

8 Cambridge Center

Cambridge, MA 02142

(617) 444-3000

(Former Name, Former Address and Former Fiscal Year, if Changed Since Last Report)

______________________________________________ 

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 (the “Exchange Act”) during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer  x	Accelerated filer o	Non-accelerated filer o	Smaller reporting company o
(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes  ¨    No  x

The number of shares outstanding of the registrant’s common stock as of November 5, 2014: 177,993,964

AKAMAI TECHNOLOGIES, INC.

FORM 10-Q

FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2014

TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)	3
	Consolidated Balance Sheets at September 30, 2014 and December 31, 2013	3
	Consolidated Statements of Operations for the three and nine months ended September 30, 2014 and 2013	4
	Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2014 and 2013	5
	Consolidated Statements of Cash Flows for the nine months ended September 30, 2014 and 2013	6
	Notes to Unaudited Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	19
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	33
Item 4.	Controls and Procedures	34
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	34
Item 1A.	Risk Factors	35
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	46
Item 6.	Exhibits	46
SIGNATURES		47
EXHIBIT INDEX		48

2

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements (Unaudited)

AKAMAI TECHNOLOGIES, INC.

CONSOLIDATED BALANCE SHEETS

(in thousands, expect share data)	September 30, 2014			December 31, 2013
ASSETS
Current assets:
Cash and cash equivalents	$	214,339		$	333,891
Marketable securities	496,573			340,005
Accounts receivable, net of reserves of $5,866 and $3,703 at September 30, 2014 and December 31, 2013, respectively	326,747			271,988
Prepaid expenses and other current assets	90,173			62,096
Deferred income tax assets	24,844			21,734
Total current assets	1,152,676			1,029,714
Property and equipment, net	559,194			450,287
Marketable securities	850,847			573,026
Goodwill	1,049,047			757,368
Acquired intangible assets, net	140,815			77,429
Deferred income tax assets	2,530			2,325
Other assets	99,182			67,536
Total assets	$	3,854,291		$	2,957,685
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	74,801		$	73,710
Accrued expenses	173,985			150,385
Deferred revenue	50,582			36,952
Other current liabilities	2,233			2,119
Total current liabilities	301,601			263,166
Deferred revenue	3,647			3,199
Deferred income tax liabilities	25,099			4,737
Convertible senior notes	600,098			—
Other liabilities	75,466			57,152
Total liabilities	1,005,911			328,254
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.01 par value; 5,000,000 shares authorized; 700,000 shares designated as Series A Junior Participating Preferred Stock; no shares issued or outstanding	—			—
Common stock, $0.01 par value; 700,000,000 shares authorized; 182,119,856 shares issued and 178,194,979 shares outstanding at September 30, 2014 and 178,580,696 shares issued and outstanding at December 31, 2013	1,851			1,808
Additional paid-in capital	4,777,961			4,561,929
Accumulated other comprehensive loss	(9,545		)	(2,091		)
Treasury stock, at cost, 3,924,877 shares at September 30, 2014 and no shares at December 31, 2013	(226,513		)	—
Accumulated deficit	(1,695,374		)	(1,932,215		)
Total stockholders’ equity	2,848,380			2,629,431
Total liabilities and stockholders’ equity	$	3,854,291		$	2,957,685

The accompanying notes are an integral part of the consolidated financial statements.

3

AKAMAI TECHNOLOGIES, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
(in thousands, except per share data)	2014			2013			2014			2013
Revenue	$	498,042		$	395,790		$	1,427,579		$	1,141,942
Costs and operating expenses:
Cost of revenue	158,812			132,039			447,742			377,136
Research and development	32,583			24,857			92,869			67,359
Sales and marketing	96,215			67,811			268,742			198,326
General and administrative	81,905			66,634			239,946			183,365
Amortization of acquired intangible assets	8,403			4,859			23,654			16,653
Restructuring (benefits) charges	(115		)	69			1,189			891
Total costs and operating expenses	377,803			296,269			1,074,142			843,730
Income from operations	120,239			99,521			353,437			298,212
Interest income	2,010			1,458			5,389			4,543
Interest expense	(4,482		)	—			(10,939		)	—
Other expense, net	(188		)	(305		)	(1,968		)	(96		)
Income before provision for income taxes	117,579			100,674			345,919			302,659
Provision for income taxes	26,424			20,918			109,078			89,521
Net income	$	91,155		$	79,756		$	236,841		$	213,138
Net income per share:
Basic	$	0.51		$	0.45		$	1.33		$	1.20
Diluted	$	0.50		$	0.44		$	1.31		$	1.17
Shares used in per share calculations:
Basic	178,186			178,235			178,324			178,008
Diluted	180,955			181,922			181,278			181,623

The accompanying notes are an integral part of the consolidated financial statements.

4

AKAMAI TECHNOLOGIES, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	For the Three Months Ended September 30,					For the Nine Months Ended September 30,
(in thousands)	2014			2013		2014			2013
Net income	$	91,155		$	79,756	$	236,841		$	213,138
Other comprehensive (loss) income:
Foreign currency translation adjustments	(10,763		)	2,950		(7,937		)	(4,810		)
Change in unrealized (loss) gain on investments, net of income tax benefit (provision) of $715, $(1,532), $324, and $(629) for the three and nine months ended September 30, 2014 and 2013, respectively	(1,279		)	2,571		483			1,016
Other comprehensive (loss) income	(12,042		)	5,521		(7,454		)	(3,794		)
Comprehensive income	$	79,113		$	85,277	$	229,387		$	209,344

The accompanying notes are an integral part of the consolidated financial statements.

5

AKAMAI TECHNOLOGIES, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

	For the Nine Months Ended September 30,
(in thousands)	2014			2013
Cash flows from operating activities:
Net income	$	236,841		$	213,138
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	179,643			134,455
Stock-based compensation	84,800			72,211
Provision for doubtful accounts	1,517			889
Excess tax benefits from stock-based compensation	(23,958		)	(18,152		)
Provision for deferred income taxes	10,622			—
Amortization of debt discount and issuance costs	10,939			—
Loss (gain) from disposal of property and equipment	325			(15		)
Loss on investments	393			—
Change in fair value of contingent consideration	300			—
Gain from divestiture of a business	—			(1,188		)
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable	(50,213		)	(51,321		)
Prepaid expenses and other current assets	(22,346		)	(9,266		)
Accounts payable and accrued expenses	36,876			43,730
Deferred revenue	7,688			10,991
Other current liabilities	(703		)	32
Other non-current assets and liabilities	(10,195		)	(3,328		)
Net cash provided by operating activities	462,529			392,176
Cash flows from investing activities:
Cash paid for acquired businesses, net of cash acquired	(386,532		)	(27,420		)
Purchases of property and equipment	(142,466		)	(142,567		)
Capitalization of internal-use software development costs	(83,841		)	(55,171		)
Purchases of short- and long-term marketable securities	(1,068,198		)	(403,556		)
Proceeds from sales of short- and long-term marketable securities	354,313			79,207
Proceeds from maturities of short- and long-term marketable securities	277,109			265,495
Proceeds from the sale of property and equipment	802			761
Other non-current assets and liabilities	6,420			(3,320		)
Net cash used in investing activities	(1,042,393		)	(286,571		)
Cash flows from financing activities:
Proceeds from the issuance of convertible senior notes, net of issuance costs	678,735			—
Proceeds from the issuance of warrants related to convertible senior notes	77,970			—
Purchase of note hedge related to convertible senior notes	(101,292		)	—
Repayment of acquired debt and capital leases	(17,862		)	—
Payment of contingent consideration related to acquired business	(1,575		)	—
Proceeds related to the issuance of common stock under stock plans	75,361			54,418
Excess tax benefits from stock-based compensation	23,958			18,152
Employee taxes paid related to net share settlement of stock-based awards	(43,205		)	(28,559		)
Repurchases of common stock	(226,513		)	(112,408		)
Net cash provided by (used in) financing activities	465,577			(68,397		)
Effects of exchange rate changes on cash and cash equivalents	(5,265		)	(4,182		)
Net (decrease) increase in cash and cash equivalents	(119,552		)	33,026
Cash and cash equivalents at beginning of period	333,891			201,989
Cash and cash equivalents at end of period	$	214,339		$	235,015

6

AKAMAI TECHNOLOGIES, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS, continued

	For the Nine Months Ended September 30,
(in thousands)	2014		2013
Supplemental disclosure of cash flow information:
Cash paid for income taxes	$	117,723	$	44,191
Non-cash financing and investing activities:
Purchases of property and equipment and capitalization of internal-use software development costs included in accounts payable and accrued expenses	40,131		12,630
Capitalization of stock-based compensation	11,577		9,252
Convertible note receivable received for divestiture of a business	—		18,882

The accompanying notes are an integral part of the consolidated financial statements.

7

AKAMAI TECHNOLOGIES, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

1. Nature of Business and Basis of Presentation

Akamai Technologies, Inc. (the “Company”) provides cloud services for delivering, optimizing and securing online content and business applications. The Company's globally distributed platform comprises more than 160,000 servers in over 1,200 networks in over 90 countries. The Company was incorporated in Delaware in 1998 and is headquartered in Cambridge, Massachusetts. The Company currently operates in one industry segment: providing services for accelerating, improving and securing the delivery of content and applications over the Internet.

The accompanying interim consolidated financial statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. These financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in the accompanying financial statements.

Certain information and footnote disclosures normally included in the Company’s annual audited consolidated financial statements and accompanying notes have been condensed in, or omitted from these interim financial statements. Accordingly, the unaudited consolidated financial statements included herein should be read in conjunction with the audited consolidated financial statements and accompanying notes included in the Company’s annual report on Form 10-K for the year ended December 31, 2013, filed with the Securities and Exchange Commission on March 3, 2014.

The results of operations presented in this quarterly report on Form 10-Q are not necessarily indicative of the results of operations that may be expected for any future periods. In the opinion of management, these unaudited consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, that are necessary for a fair statement of the results of all interim periods reported herein.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board issued updated guidance and disclosure requirements for recognizing revenue. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized.  The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance will be effective for the Company on January 1, 2017 and may be applied retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption.  The Company is evaluating the potential impact of adopting this new accounting guidance.

8

2. Fair Value Measurements

The following is a summary of available-for-sale marketable securities held as of September 30, 2014 and December 31, 2013 (in thousands):

			Gross Unrealized							Classification on Balance Sheet
	Amortized Cost		Gains		Losses			Aggregate Fair Value		Short-Term Marketable Securities		Long-Term Marketable Securities
As of September 30, 2014
Certificates of deposit	$	52	$	—	$	—		$	52	$	—	$	52
Commercial paper	22,487		1		(2		)	22,486		22,486		—
Corporate bonds	1,032,801		870		(1,646		)	1,032,025		399,682		632,343
U.S. government agency obligations	293,146		37		(326		)	292,857		74,405		218,452
	$	1,348,486	$	908	$	(1,974	)	$	1,347,420	$	496,573	$	850,847
As of December 31, 2013
Certificates of deposit	$	222	$	—	$	—		$	222	$	173	$	49
Corporate bonds	736,945		1,197		(281		)	737,861		278,318		459,543
U.S. government agency obligations	174,982		51		(85		)	174,948		61,514		113,434
	$	912,149	$	1,248	$	(366	)	$	913,031	$	340,005	$	573,026

Unrealized gains and unrealized temporary losses on investments classified as available-for-sale are included within accumulated other comprehensive loss in the consolidated balance sheets. Upon realization, those amounts are reclassified from accumulated other comprehensive loss to interest income in the statements of operations. The Company does not believe any unrealized losses represent other than temporary impairments based on the evaluation of available evidence. As of September 30, 2014 and December 31, 2013, there were no securities in a continuous unrealized loss position for more than 12 months.

9

The following table details the fair value measurements within the fair value hierarchy of the Company’s financial assets and liabilities at September 30, 2014 and December 31, 2013 (in thousands):

	Total Fair Value			Fair Value Measurements at Reporting Date Using
				Level 1		Level 2		Level 3
As of September 30, 2014
Cash Equivalents and Marketable Securities:
Money market funds	$	2,936		$	2,936	$	—	$	—
Certificates of deposit	52			52		—		—
Commercial paper	22,486			—		22,486		—
Corporate bonds	1,032,025			—		1,032,025		—
U.S. government agency obligations	292,857			—		292,857		—
	$	1,350,356		$	2,988	$	1,347,368	$	—
Other Liabilities:
Contingent consideration obligation related to Velocius acquisition	$	(900	)	$	—	$	—	$	(900	)
As of December 31, 2013
Cash Equivalents and Marketable Securities:
Money market funds	$	40,482		$	40,482	$	—	$	—
Certificates of deposit	3,418			3,418		—		—
Commercial paper	29,999			—		29,999		—
Corporate bonds	737,861			—		737,861		—
U.S. government agency obligations	174,948			—		174,948		—
	$	986,708		$	43,900	$	942,808	$	—
Other Assets:
Note receivable	$	22,879		$	—	$	—	22,879
Other Liabilities:
Contingent consideration obligation related to Velocius acquisition	$	(2,600	)	$	—	$	—	$	(2,600	)

As of September 30, 2014 and December 31, 2013, the Company grouped money market funds and certificates of deposit using a Level 1 valuation because market prices for such investments are readily available in active markets. As of September 30, 2014 and December 31, 2013, the Company grouped commercial paper, U.S. government agency obligations and corporate bonds using a Level 2 valuation because quoted prices for identical or similar assets are available in markets that are inactive.

When developing fair value estimates, the Company maximizes the use of observable inputs and minimizes the use of unobservable inputs. When available, the Company uses quoted market prices to measure fair value. The valuation technique used to measure fair value for the Company's Level 1 and Level 2 assets is a market approach, using prices and other relevant information generated by market transactions involving identical or comparable assets. If market prices are not available, the fair value measurement is based on models that use primarily market-based parameters including yield curves, volatilities, credit ratings and currency rates. In certain cases where market rate assumptions are not available, the Company is required to make judgments about assumptions market participants would use to estimate the fair value of a financial instrument.

The valuation technique used to measure fair value of the Company's Level 3 liability, which consists of a contingent consideration related to the acquisition of Velocius Networks, Inc. ("Velocius") (Note 5), is primarily an income approach. The significant unobservable input used in the fair value measurement of the Velocius contingent consideration is the likelihood of achieving development milestones to integrate the acquired technology into the Company's technology. During the third quarter of 2014, the first of two milestones was achieved and a portion of the contingent consideration was paid. The remaining milestone is payable in the third quarter of 2015, if achieved.

10

Increases or decreases in the underlying assumptions used to value the Company's Level 3 liability held at September 30, 2014 and December 31, 2013, could increase or decrease the fair value estimates recorded in the consolidated balance sheets.

The valuation technique used to measure fair value for the Company's Level 3 asset, which consisted of a $25.0 million face value convertible note receivable, was primarily an income approach, where the expected weighted average future cash flows were discounted back to present value. The significant unobservable inputs used in the fair value measurement of the convertible note receivable were the probability of conversion to equity and the fair value of equity into which the note was convertible. In the second quarter of 2014, the note was amended. Under the terms of the amendment, the note became convertible into shares of preferred stock of the issuer valued at $12.5 million at the time of conversion; the remaining $12.5 million was paid in the second and third quarters of 2014.

Contractual maturities of the Company’s available-for-sale marketable securities held at September 30, 2014 and December 31, 2013 were as follows (in thousands):

	September 30, 2014		December 31, 2013
Due in 1 year or less	$	496,573	$	340,005
Due after 1 year through 5 years	850,847		573,026
	$	1,347,420	$	913,031

The following table reflects the activity for the Company’s major classes of assets and liabilities measured at fair value using Level 3 inputs for the nine months ended September 30, 2014 (in thousands):

	Other Assets: Note Receivable			Other Liabilities: Contingent Consideration Obligation
Balance as of January 1, 2014	$	22,879		$	(2,600	)
Unrealized gain on convertible note receivable included in other comprehensive (loss) income	2,121			—
Amendment of the convertible note receivable for preferred stock of the issuer and cash	(25,000		)	—
Fair value adjustment to contingent consideration included in general and administrative expense	—			(300		)
Achievement of first milestone related to Velocius contingent consideration	—			2,000
Balance as of September 30, 2014	$	—		$	(900	)

3. Accounts Receivable

Net accounts receivable consisted of the following as of September 30, 2014 and December 31, 2013 (in thousands):

	September 30, 2014			December 31, 2013
Trade accounts receivable	$	235,166		$	175,391
Unbilled accounts receivable	97,447			100,300
Gross accounts receivable	332,613			275,691
Allowance for doubtful accounts	(1,032		)	(708		)
Reserve for cash-basis customers	(4,834		)	(2,995		)
Total accounts receivable reserves	(5,866		)	(3,703		)
Accounts receivable, net	$	326,747		$	271,988

11

4. Goodwill and Acquired Intangible Assets

The change in the carrying amount of goodwill for the nine months ended September 30, 2014 was as follows (in thousands):

Balance as of January 1, 2014	$	757,368
Acquisition of Prolexic Technologies, Inc.	291,679
Balance as of September 30, 2014	$	1,049,047

The Company tests goodwill for impairment at least annually. Through the date the consolidated financial statements were issued, no triggering events had occurred that would indicate a potential impairment exists.

Acquired intangible assets that are subject to amortization consist of the following as of September 30, 2014 and December 31, 2013 (in thousands):

	September 30, 2014							December 31, 2013
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Completed technology	$	92,431	$	(45,969	)	$	46,462	$	65,631	$	(35,476	)	$	30,155
Customer-related intangible assets	173,600		(87,009		)	86,591		115,100		(75,563		)	39,537
Non-compete agreements	8,890		(3,804		)	5,086		7,950		(2,623		)	5,327
Trademarks and trade names	4,200		(1,524		)	2,676		3,400		(990		)	2,410
Acquired license rights	490		(490		)	—		490		(490		)	—
Total	$	279,611	$	(138,796	)	$	140,815	$	192,571	$	(115,142	)	$	77,429

Aggregate expense related to amortization of acquired intangible assets for the three and nine months ended September 30, 2014 was $8.4 million and $23.7 million, respectively. Aggregate expense related to amortization of acquired intangible assets for the three and nine months ended September 30, 2013 was $4.9 million and $16.7 million, respectively. Based on the Company’s acquired intangible assets as of September 30, 2014, aggregate expense related to amortization of acquired intangible assets is expected to be $8.4 million for the remainder of 2014, and $26.8 million, $25.2 million, $23.1 million and $16.2 million for 2015, 2016, 2017 and 2018, respectively.

5. Business Acquisitions

Prolexic Acquisition

On February 18, 2014, the Company acquired all of the outstanding capital stock of Prolexic Technologies, Inc. ("Prolexic") in exchange for $392.1 million in cash and the assumption of unvested stock options. The goal of acquiring Prolexic was to provide customers with a comprehensive portfolio of security solutions designed to defend an enterprise’s Web and IP infrastructure against application-layer, network-layer and data center attacks delivered via the Internet. The consolidated financial statements include the operating results of Prolexic from the date of acquisition. The revenue and earnings included in the Company's consolidated financial statements since the acquisition date are not material. Pro forma results of the operations have not been presented because the effects are not material to the consolidated financial statements. Acquisition-related costs were $4.1 million for the nine months ended September 30, 2014.

The allocation of the purchase price has been finalized, with the exception of evaluating certain accrued expenses, property and equipment and tax-related assets and liabilities. The Company is in the process of gathering the facts and circumstances existing as of the acquisition date in order to finalize the valuation of these items. The Company has made immaterial adjustments to the allocation of the purchase price since the acquisition date.

12

The following table presents the preliminary allocation of the purchase price for Prolexic (in thousands):

Total purchase consideration	$	392,104
Allocation of the purchase consideration:
Cash	$	33,072
Accounts receivable	11,208
Property and equipment	12,225
Identifiable intangible assets	87,040
Goodwill	291,679
Deferred tax assets	16,000
Other current and long-term assets	5,850
Total assets acquired	457,074
Other current liabilities	(6,019		)
Current deferred revenue	(5,812		)
Deferred tax liabilities	(33,723		)
Debt, capital leases and other long-term liabilities	(19,416		)
Total liabilities assumed	(64,970		)
Net assets acquired	$	392,104

The value of the goodwill can be attributed to a number of business factors, including a trained technical and sales workforce and the fair value of expected cost synergies to be realized. The total amount of goodwill related to the acquisition of Prolexic expected to be deducted for tax purposes is $62.4 million.

The following were the identified intangible assets acquired and their respective weighted average useful lives (in thousands, except for years):

	Gross Carrying Amount		Weighted Average Useful Life (in years)
Completed technologies	$	26,800	6.9
Customer-related intangible assets	58,500		10.4
Non-compete agreements	940		3.0
Trademark	800		4.9
Total	$	87,040

Velocius Acquisition

On November 8, 2013, the Company acquired all the outstanding capital stock of Velocius in exchange for $4.3 million in cash. In addition, the Company recorded a liability of $2.6 million for a contingent consideration related to expected achievement of post-closing milestones. The maximum potential payout of the contingent consideration is $3.0 million. As of September 30, 2014, the first of two milestones was achieved and the remaining contingent consideration has a fair value of $0.9 million.

The Company acquired Velocius with a goal of complementing its hybrid cloud optimization strategy for optimizing IP application traffic across the Internet for remote and branch-end users. The Company allocated $5.4 million of the cost of the acquisition to goodwill and $2.5 million to acquired intangible assets. The allocation of the purchase price was finalized in the first quarter of 2014. The total weighted average useful life of the intangible assets acquired from Velocius is 7.9 years. The value of the goodwill from the acquisition can be attributed to a number of business factors, including a trained technical workforce and cost synergies. The total amount of goodwill related to the acquisition of Velocius expected to be deducted for tax purposes is $0.3 million.

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Strategic Network Transaction

On November 30, 2012, the Company entered into a strategic alliance with AT&T Services, Inc. ("AT&T"). Under the agreement, AT&T became a reseller of the Company's services and the Company acquired certain assets and contracted to purchase bandwidth, co-location and related services from AT&T. The total consideration was $55.0 million, of which $27.5 million was paid during the third quarter of 2013 and $27.5 million was paid during the first quarter of 2014.

6. Convertible Senior Notes

In February 2014, the Company issued $690.0 million in par value of convertible senior notes due 2019 (the "Notes"). The Notes are senior unsecured obligations of the Company, do not bear regular interest and mature on February 15, 2019, unless repurchased or converted prior to maturity.

At their option, holders may convert their Notes prior to the close of business on the business day immediately preceding August 15, 2018 only under the following circumstances:

• during any calendar quarter commencing after the calendar quarter ended June 30, 2014 (and only during such calendar quarter), if the last reported sale price of the Company's common stock for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day;

• during the five business day period after any five consecutive trading day period in which the trading price per $1,000 principal amount of Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company's common stock and the conversion rate on each such trading day; or

• upon the occurrence of specified corporate events.

On or after August 15, 2018, holders may convert all or any portion of their Notes at any time prior to the close of business on the second scheduled trading day immediately preceding the maturity date, regardless of the foregoing circumstances.

Upon conversion, the Company, at its election, may pay or deliver to holders cash, shares of the Company's common stock or a combination of cash and shares of the Company's common stock. The initial conversion rate is 11.1651 shares of the Company's common stock per $1,000 principal amount, which is equivalent to an initial conversion price of approximately $89.56 per share, subject to adjustments in certain events, and represents a potential conversion into 7.7 million shares.

In accounting for the issuance of the Notes, the Company separated the Notes into liability and equity components. The carrying cost of the liability component was calculated by measuring the fair value of a similar debt obligation that does not have an associated convertible feature. The carrying amount of the equity component representing the conversion option was determined by deducting the fair value of the liability component from the par value of the Notes. The difference between the principal amount of the Notes and the proceeds allocated to the liability component (“debt discount”), is amortized to interest expense using the effective interest method over the term of the Notes. The equity component is recorded in additional paid-in capital in the consolidated balance sheet and will not be remeasured as long as it continues to meet the conditions for equity classification.

In accounting for the transaction costs related to the issuance of the Notes, the Company allocated the total transaction costs incurred to the liability and equity components based on their relative values. Transaction costs attributable to the liability component are being amortized to interest expense over the term of the Notes, and transaction costs attributable to the equity component are netted with the equity component of the Notes in stockholders’ equity.

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The Notes consist of the following components (in thousands):

	September 30, 2014
Liability component:
Principal	$	690,000
Less: debt discount, net of amortization	(89,902		)
Net carrying amount	$	600,098
Equity component:	$	101,276

The estimated fair value of the Company's Notes at September 30, 2014 was $691.7 million. The fair value was determined based on data points other than quoted prices that are observable, either directly or indirectly, and has been classified as Level 2 within the fair value hierarchy. Based on the closing price of the Company's common stock of $59.80 on September 30, 2014, the value of the Notes if converted to common stock was less than the principal amount of $690.0 million.

The Company used $62.0 million of the proceeds from the offering to repurchase shares of its common stock, concurrently with the issuance of the Notes. The repurchase was made in accordance with the share repurchase program previously approved by the Board of Directors (Note 7). Additionally, $23.3 million of the proceeds was used for the net cost of convertible note hedge and warrant transactions. The Company intends to use the remaining net proceeds for working capital and other general corporate purposes, as well as for potential acquisitions and strategic transactions.

Note Hedge

To minimize the impact of potential dilution upon conversion of the Notes, the Company entered into convertible note hedge transactions with respect to its common stock. The Company paid $101.3 million for the note hedge transactions. The note hedge transactions cover approximately 7.7 million shares of the Company’s common stock at a strike price that corresponds to the initial conversion price of the Notes, also subject to adjustment, and are exercisable upon conversion of the Notes.  The note hedge transactions are intended to reduce dilution in the event of conversion of the Notes.

Warrants

Separately, the Company entered into warrant transactions, whereby the Company sold warrants to acquire, subject to anti-dilution adjustments, up to 7.7 million shares of the Company’s common stock at a strike price of approximately $104.49 per share. The Company received aggregate proceeds of $78.0 million from the sale of the warrants.  The convertible note hedge and warrant transactions will generally have the effect of increasing the conversion price of the Notes to approximately $104.49 per share.

Interest Expense

The Notes do not bear regular interest, but have an effective interest rate of 3.2% attributable to the conversion feature. The following table sets forth total interest expense included in the statement of operations related to the Notes (in thousands):

	For the Three Months Ended September 30,			For the Nine Months Ended September 30,
	2014			2014
Amortization of debt discount	$	449		$	1,079
Amortization of debt issuance costs	4,712			11,373
Capitalization of interest expense	(679		)	(1,513		)
Total interest expense	$	4,482		$	10,939

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7. Stockholders’ Equity

Share Repurchase Program

In October 2013, the Board of Directors authorized a $750.0 million share repurchase program, effective from October 16, 2013 through December 31, 2016. During the nine months ended September 30, 2014, the Company repurchased 3.9 million shares of its common stock for $226.5 million.

Stock-Based Compensation

The following table summarizes stock-based compensation included in the Company’s consolidated statements of operations for the three and nine months ended September 30, 2014 and 2013 (in thousands):

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2014			2013			2014			2013
Cost of revenue	$	3,030		$	2,885		$	8,901		$	8,230
Research and development	4,979			4,583			14,517			12,819
Sales and marketing	12,110			10,048			35,438			29,278
General and administrative	7,889			6,963			25,944			21,884
Total stock-based compensation	28,008			24,479			84,800			72,211
Provision for income taxes	(8,472		)	(8,272		)	(26,852		)	(24,581		)
Total stock-based compensation, net of income taxes	$	19,536		$	16,207		$	57,948		$	47,630

In addition to the amounts of stock-based compensation reported in the table above, the Company’s consolidated statements of operations for the three and nine months ended September 30, 2014, include stock-based compensation reflected as a component of amortization of capitalized internal-use software of $3.6 million and $7.5 million, respectively, before income taxes. For the three and nine months ended September 30, 2013, the Company's consolidated statements of operations include stock-based compensation reflected as a component of amortization of capitalized internal-use software of $2.2 million and $6.1 million, respectively, before income taxes.

8. Accumulated Other Comprehensive Loss

The following table summarizes the changes in accumulated other comprehensive loss, which is reported as a component of stockholders' equity, for the nine months ended September 30, 2014 (in thousands):

	Foreign Currency Translation Adjustments			Net Unrealized Gain on Investments		Total
Balance as of January 1, 2014	$	(6,715	)	$	4,624	$	(2,091	)
Other comprehensive (loss) income	(7,937		)	483		(7,454		)
Balance as of September 30, 2014	$	(14,652	)	$	5,107	$	(9,545	)

The tax effect on accumulated unrealized gain on investments was insignificant as of September 30, 2014 and December 31, 2013. Amounts reclassified from accumulated other comprehensive loss to net income were insignificant for the nine months ended September 30, 2014.

9. Income Taxes

The Company’s effective income tax rate was 31.5% and 29.6% for the nine months ended September 30, 2014 and 2013, respectively. The effective income tax rate is based upon estimated income for the year, the estimated composition of the income in different jurisdictions and discrete adjustments, if any, in the applicable quarterly periods, including retroactive changes in tax legislation, settlements of tax audits or assessments, the resolution or identification of tax position uncertainties and acquisitions of other companies.

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During the third quarter of 2014, the Company recognized a state tax benefit related to its software development activities, which resulted in a net tax benefit of $13.3 million for the period from January 1, 2010 to September 30, 2014.  During the third quarter of 2013, the Company completed an analysis of its domestic production activities deduction, which resulted in a federal tax benefit of $16.5 million for the period from January 1, 2010 to September 30, 2013.  The Company also recorded a discrete item during the nine months ended September 30, 2013 related to the reinstatement of the federal research and development credit at the beginning of 2013, which included a one-time retroactive impact for fiscal year 2012.

For the nine months ended September 30, 2014, the effective income tax rate was lower than the federal statutory tax rate due to the benefit from the state software development activities and income from foreign jurisdictions that is taxed at lower rates compared to the statutory tax rates in the United States; partially offset by the effects of accounting for stock-based compensation in accordance with the authoritative guidance for share-based payments and state income taxes.  For the nine months ended September 30, 2013, the effective income tax rate was lower than the federal statutory tax rate mainly due to the domestic production activities deduction, the composition of income in foreign jurisdictions with lower rates, as well as the reinstatement of the federal research and development credit at the beginning of 2013, which included a one-time retroactive impact for fiscal year 2012.

10. Net Income per Share

Basic net income per share is computed using the weighted average number of common shares outstanding during the applicable period. Diluted net income per share is computed using the weighted average number of common shares outstanding during the period, plus the dilutive effect of potential common stock. Potential common stock consists of shares issuable pursuant to stock options, restricted stock units (“RSUs”), deferred stock units, convertible senior notes and warrants issued by the Company. The dilutive effect of outstanding awards and convertible securities is reflected in diluted earnings per share by application of the treasury stock method.

The following table sets forth the components used in the computation of basic and diluted net income per share for the three and nine months ended September 30, 2014 and 2013 (in thousands, except per share data):

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2014		2013		2014		2013
Numerator:
Net income	$	91,155	$	79,756	$	236,841	$	213,138
Denominator:
Shares used for basic net income per share	178,186		178,235		178,324		178,008
Effect of dilutive securities:
Stock options	1,146		1,580		1,257		1,693
RSUs and deferred stock units	1,623		2,107		1,697		1,922
Convertible senior notes	—		—		—		—
Warrants related to issuance of convertible senior notes	—		—		—		—
Shares used for diluted net income per share	180,955		181,922		181,278		181,623
Basic net income per share	$	0.51	$	0.45	$	1.33	$	1.20
Diluted net income per share	$	0.50	$	0.44	$	1.31	$	1.17

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For the three and nine months ended September 30, 2014 and 2013, certain potential outstanding shares from stock options, service-based RSUs, convertible notes and warrants were excluded from the computation of diluted net income per share because the effect of including these items would be anti-dilutive. Additionally, certain performance-based RSUs were excluded from the computation of diluted net income per share because the underlying performance conditions for such RSUs had not been met as of these dates. The number of potentially outstanding shares excluded from the computation of diluted net income per share for the three and nine months ended September 30, 2014 and 2013 are as follows (in thousands):

	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
	2014	2013	2014	2013
Stock options	261	1,308	462	1,782
Service-based RSUs	797	37	773	234
Performance-based RSUs	565	1,140	572	1,145
Convertible senior notes	—	—	—	—
Warrants related to issuance of convertible senior notes	—	—	—	—

The calculation of assumed proceeds used to determine the diluted weighted average shares outstanding under the treasury stock method in the periods presented was adjusted by tax windfalls and shortfalls associated with all of the Company’s outstanding stock awards. Such windfalls and shortfalls are computed by comparing the tax deductible amount of outstanding stock awards to their grant date fair values and multiplying the results by the applicable statutory tax rate. A positive result creates a windfall, which increases the assumed proceeds, and a negative result creates a shortfall, which reduces the assumed proceeds.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This quarterly report on Form 10-Q, particularly Management’s Discussion and Analysis of Financial Condition and Results of Operations set forth below, and notes to our unaudited consolidated financial statements included herein contain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are subject to risks and uncertainties and are based on the beliefs and assumptions of our management as of the date hereof based on information currently available to our management. Use of words such as “believes,” “expects,” “anticipates,” “intends,” “plans,” “estimates,” “should,” “forecasts,” “if,” “continues,” “goal,” “likely” or similar expressions indicates a forward-looking statement. Forward-looking statements are not guarantees of future performance and involve risks, uncertainties and assumptions. Actual results may differ materially from the forward-looking statements we make. See “Risk Factors” elsewhere in this quarterly report on Form 10-Q for a discussion of certain risks associated with our business. We disclaim any obligation to update forward-looking statements as a result of new information, future events or otherwise.

Our management’s discussion and analysis of our financial condition and results of operations is based upon our unaudited consolidated financial statements included elsewhere in this quarterly report on Form 10-Q, which we have prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, for interim periods and with Regulation S-X promulgated under the Securities Exchange Act of 1934, as amended, or the Exchange Act. The preparation of these unaudited consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and related items, including, but not limited to, revenue recognition, accounts receivable and related reserves, valuation and impairment of marketable securities, goodwill and acquired intangible assets, capitalized internal-use software costs, impairment and useful lives of long-lived assets, income tax, and stock-based compensation. We base our estimates and judgments on historical experience and on various other assumptions that we believe to be reasonable under the circumstances at the time they are made. Actual results may differ from our estimates. See the section entitled “Application of Critical Accounting Policies and Estimates” in our annual report on Form 10-K for the year ended December 31, 2013 for further discussion of our critical accounting policies and estimates.

Overview

We provide cloud services for delivering, optimizing and securing online content and business applications. We primarily derive income from sales of services to customers executing contracts with terms of one year or longer. We believe that this emphasis on longer-term contracts generally allows us to have a consistent and predictable base level of revenue which is important to our financial success. Accordingly, to be successful, we must maintain our base of recurring revenue contracts by minimizing customer cancellations or terminations and limiting the impact of price reductions reflected in contract renewals and build on that base by adding new customers and increasing the amount and value of services, features and functionalities that our existing customers purchase. Accomplishing these goals requires that we compete effectively in the marketplace on the basis of quality, price and overall attractiveness of our services and technology.

Our revenue is also impacted by factors such as the timing and variability of customer-specific one-time events, the prices we are able to charge for our services, the amount of traffic we serve on our network and the impact of seasonal variations on our business. We have observed the following trends related to our revenue in recent years:

• On a consistent basis, we have been able to offset lost committed recurring revenue by adding new customers and increasing sales of incremental services to our existing customers. We have also experienced increases in the rate of traffic delivered to our customers that use our solutions for video, gaming, social media and software downloads.

• The unit prices paid by some of our customers have declined, reflecting the impact of competition. These price reductions have primarily impacted customers for which we deliver high volumes of traffic over our network, such as media customers.

• We have experienced variations in certain types of revenue from quarter to quarter; in particular, we experience higher revenue in the fourth quarter of the year for some of our solutions as a result of the holiday season. We also experience lower revenue in the summer months, particularly in Europe, from both e-commerce and media customers because overall Internet use declines during that time. In addition, we experience quarterly variations in revenue attributable to the nature and timing of software and gaming releases by our customers using our software download solutions.

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Our profitability is also impacted by our expense levels, including direct costs to support our revenue, such as co-location and bandwidth costs, and expenses incurred to support strategic initiatives that we anticipate will generate revenue in the future. We have observed the following trends related to our profitability in recent years:

• We have increased headcount to support our revenue growth and strategic initiatives, and as a result, our payroll and related compensation costs have increased. We increased our headcount by more than 800 employees in 2013 and during the nine months ended September 30, 2014 we hired an additional 950 employees, including approximately 200 employees who were part of the acquisition of Prolexic Technologies, Inc., or Prolexic, in the first quarter of 2014. We expect to continue to hire additional employees and expand globally in support of our strategic initiatives.

• Network bandwidth costs represent a significant portion of our cost of revenue. Historically, we have been able to mitigate increases in these costs by reducing our network bandwidth costs per unit and investing in internal-use software development to improve the performance and efficiency of our network. Our total bandwidth costs may increase in the future as a result of expected higher traffic levels, but we believe such costs would be partially offset by anticipated continued reductions in bandwidth costs per unit and efficiency measures we take.

• Co-location costs are a significant percentage of total cost of revenue. By improving our internal-use software and managing our hardware deployments to enable us to use servers more efficiently, we have been able to manage the growth of co-location costs. We expect to continue to scale our network in the future and will need to manage our co-location costs to maintain current levels of profitability.

In February 2014, we completed the acquisition of Prolexic. Prolexic is expected to be slightly dilutive to our earnings per share in the first full year following the acquisition. Revenues and expenses from the acquired operations have been included in our earnings since the acquisition date of February 18, 2014. Also in February 2014, we completed an offering of $690.0 million in par value of convertible senior notes. The notes do not bear regular interest, but have an effective interest rate of 3.2% attributable to the conversion feature.

Results of Operations

The following table sets forth, as a percentage of revenue, consolidated statements of operations data for the periods indicated:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2014		2013		2014		2013
Revenue	100.0	%	100.0	%	100.0	%	100.0	%
Cost of revenue	31.9		33.4		31.4		33.0
Research and development expense	6.5		6.3		6.5		5.9
Sales and marketing expense	19.3		17.1		18.8		17.4
General and administrative expense	16.4		16.8		16.8		16.1
Amortization of acquired intangible assets	1.7		1.2		1.7		1.5
Restructuring (benefits) charges	—		—		0.1		0.1
Total costs and operating expenses	75.8		74.8		75.3		74.0
Income from operations	24.2		25.2		24.7		26.0
Interest income	0.4		0.4		0.4		0.4
Interest expense	(0.9	)	—		(0.8	)	—
Other expense, net	—		(0.1	)	(0.1	)	—
Income before provision for income taxes	23.7		25.5		24.2		26.4
Provision for income taxes	5.3		5.3		7.6		7.8
Net income	18.4	%	20.2	%	16.6	%	18.6	%

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Revenue

Revenue during the periods presented was as follows (in thousands):

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2014		2013		% Change		2014		2013		% Change
Revenue	$	498,042	$	395,790	25.8	%	$	1,427,579	$	1,141,942	25.0	%

During the three- and nine-month periods ended September 30, 2014, the increase in our revenue as compared to the same periods in 2013 was driven by continued strong demand for our services across all of our solutions and geographies. For the three- and nine-month periods ended September 30, 2014 and 2013, no single customer accounted for 10% or more of revenue.

For the three- and nine-month periods ended September 30, 2014, approximately 27% and 28%, respectively, of our revenue was derived from our operations located outside of the United States. For each of the three- and nine-month periods ended September 30, 2013, approximately 27% of our revenue was derived from our operations located outside the United States. No single country outside of the United States accounted for 10% or more of revenue during any of these periods.

Revenue from our operations in the United States experienced strong performance driven by our large social media, gaming and video delivery customer base during the nine months ended September 30, 2014. During the first three quarters of 2014, we also experienced strong revenue growth from our operations in the Asia Pacific region and continued improvement in revenue growth from our operations in Europe, the Middle East and Africa, primarily driven by growth across all of our solutions. Changes in foreign currency exchange rates positively impacted our revenue by $0.5 million and $1.8 million during the three- and nine-month periods ended September 30, 2014, respectively, as compared to the same periods in 2013.

For the each of the three- and nine-month periods ended September 30, 2014, resellers accounted for 25% of revenue as compared to 21% of revenue for the same periods in 2013. The increase in revenue from resellers was attributable to continued traction with our carrier channel partners, as well as contributions from Prolexic's reseller relationships.

The following table quantifies the contribution to revenue during the periods presented from our solution categories (in thousands):

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2014		2013		% Change		2014		2013		% Change
Media Delivery Solutions	$	230,576	$	189,066	22.0	%	$	661,583	$	549,672	20.4	%
Performance and Security Solutions	224,169		173,864		28.9		639,561		498,387		28.3
Service and Support Solutions	43,297		32,860		31.8		126,435		91,754		37.8
Advertising Decision Solutions and other	—		—		—		—		2,129		(100.0	)
Total revenue	$	498,042	$	395,790	25.8	%	$	1,427,579	$	1,141,942	25.0	%

The increase in Media Delivery Solutions revenue for the three- and nine-month periods ended September 30, 2014, as compared to the same periods in 2013, was due to strong demand across most of our customer base. We experienced particularly strong growth from our social media, gaming, video and software download customers.

The increase in Performance and Security Solutions revenue for the three- and nine-month periods ended September 30, 2014, as compared to the same periods in 2013, was partially due to increased revenue attributable to Prolexic. Additionally, there was an increase in demand for our web performance and cloud security solutions.

The increase in Service and Support Solutions revenue for the three- and nine-month periods ended September 30, 2014, as compared to the same periods in 2013, was due to increases in sales of our service and support offerings due to strong service attachment rates for customers of our Media Delivery and Performance and Security Solutions.

The Advertising Decision Solutions business was divested in the first quarter of 2013.

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Cost of Revenue

Cost of revenue consisted of the following for the periods presented (in thousands):

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
	2014			2013			% Change		2014			2013			% Change
Bandwidth fees	$	32,391		$	26,628		21.6	%	$	90,638		$	77,339		17.2	%
Co-location fees	28,716			27,749			3.5		85,610			83,191			2.9
Network build-out and supporting services	9,721			9,332			4.2		31,018			27,279			13.7
Payroll and related costs	36,825			29,404			25.2		104,517			82,152			27.2
Stock-based compensation, including amortization of prior capitalized amounts	6,498			5,017			29.5		16,118			14,048			14.7
Depreciation of network equipment	28,135			21,960			28.1		78,586			60,457			30.0
Amortization of internal-use software	16,526			11,949			38.3		41,255			32,670			26.3
Total cost of revenue	$	158,812		$	132,039		20.3	%	$	447,742		$	377,136		18.7	%
As a percentage of revenue	31.9		%	33.4		%			31.4		%	33.0		%

The increase in total cost of revenue for the three- and nine-month periods ended September 30, 2014 as compared to the same periods in 2013 was primarily due to increases in:

• payroll and related costs of service personnel due to headcount growth to support our Service and Support Solutions revenue growth, as well as headcount growth related to our network operations to support our other solution categories;

• amounts paid to network providers for bandwidth fees to support the increase in traffic served on our network; and

• depreciation and amortization of network equipment and internal-use software as we continued to invest in our infrastructure and release internally developed software onto our network.

In recent years, we have reduced our network bandwidth costs per unit and have successfully managed our co-location fees, which contributed to the decrease in our cost of revenue as a percentage of revenue during the three- and nine-month periods ended September 30, 2014 as compared to the same periods in 2013.

We have long-term purchase commitments for bandwidth usage and co-location services with various network and Internet service providers. Our minimum commitments related to bandwidth usage and co-location services may vary from period to period depending on the timing and length of contract renewals with our service providers. There have been no significant changes to the commitments reported in our annual report on Form 10-K for the year ended December 31, 2013, other than normal period-to-period variations.

We believe that cost of revenue will increase during the fourth quarter of 2014 as compared to each of the first three quarters of 2014, primarily because we expect to deploy more servers and deliver more traffic on our network, which will result in higher expenses associated with the increased traffic and additional co-location fees. Additionally, for the remainder of 2014, we anticipate higher payroll and related costs, as compared to the first three quarters of 2014, associated with an increase in headcount of our network and professional services personnel. We plan to continue to make investments in our network in the foreseeable future in the expectation that our customer base and sales of services to our existing customers will continue to grow.

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Research and Development Expenses

Research and development expenses consisted of the following for the periods presented (in thousands):

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
	2014			2013			% Change		2014			2013			% Change
Payroll and related costs	$	49,617		$	36,526		35.8	%	$	138,421		$	100,830		37.3	%
Stock-based compensation	4,979			4,583			8.6		14,517			12,819			13.2
Capitalized salaries and related costs	(24,496		)	(17,692		)	38.5		(66,552		)	(50,137		)	32.7
Other expenses	2,483			1,440			72.4		6,483			3,847			68.5
Total research and development	$	32,583		$	24,857		31.1	%	$	92,869		$	67,359		37.9	%
As a percentage of revenue	6.5		%	6.3		%			6.5		%	5.9		%

The increase in research and development expenses during the three- and nine-month periods ended September 30, 2014, as compared to the same periods in 2013, was due to increases in payroll and related costs as a result of continued growth in headcount to support investments in new product development, partially offset by increases in capitalized salaries and related costs.

Research and development costs consist of external consulting expenses and payroll and related costs for personnel involved in the development of internal-use software used to deliver our services and operate our network. These development costs are expensed as incurred, other than certain internal-use software development costs eligible for capitalization. During the three- and nine-month periods ended September 30, 2014, we capitalized $3.4 million and $10.3 million, respectively, of stock-based compensation. During the three- and nine-month periods ended September 30, 2013, we capitalized $2.8 million and $8.6 million, respectively, of stock-based compensation. These capitalized internal-use software costs are amortized to cost of revenue over their estimated useful lives of two years.

We believe that research and development expenses will increase in absolute dollars during the fourth quarter of 2014 as compared to each of the first three quarters of 2014, as we expect to continue to hire additional development personnel in order to make improvements to our core technology and develop new and enhanced services.

Sales and Marketing Expenses

Sales and marketing expenses consisted of the following for the periods presented (in thousands):

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
	2014			2013			% Change		2014			2013			% Change
Payroll and related costs	$	68,684		$	48,562		41.4	%	$	185,461		$	133,761		38.7	%
Stock-based compensation	12,110			10,048			20.5		35,438			29,278			21.0
Marketing programs and related costs	7,314			4,184			74.8		25,093			18,545			35.3
Other expenses	8,107			5,017			61.6		22,750			16,742			35.9
Total sales and marketing	$	96,215		$	67,811		41.9	%	$	268,742		$	198,326		35.5	%
As a percentage of revenue	19.3		%	17.1		%			18.8		%	17.4		%

The increase in sales and marketing expenses during the three- and nine-month periods ended September 30, 2014, as compared to the same periods in 2013, was primarily due to higher payroll and related costs, as we invested in our sales and marketing organization, and to an increase in marketing programs and related costs in support of our go-to-market strategy and ongoing geographic expansion.

We believe that sales and marketing expenses will increase in absolute dollars during the fourth quarter of 2014 as compared to each of the first three quarters of 2014, due to an expected increase in payroll and related costs as a result of continued headcount growth, primarily with respect to our direct sales team and corporate marketing function.

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General and Administrative Expenses

General and administrative expenses consisted of the following for the periods presented (in thousands):

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
	2014			2013			% Change		2014			2013			% Change
Payroll and related costs	$	38,611		$	27,185		42.0	%	$	106,635		$	75,583		41.1	%
Stock-based compensation	7,889			6,963			13.3		25,944			21,883			18.6
Depreciation and amortization	10,883			7,054			54.3		28,932			18,858			53.4
Facilities-related costs	13,538			11,514			17.6		39,010			31,451			24.0
Provision for doubtful accounts	784			(140		)	(660.0	)	955			391			144.2
Acquisition-related costs	—			219			(100.0	)	3,836			587			553.5
Professional and other fees	10,200			13,839			(26.3	)	34,634			34,612			0.1
Total general and administrative	$	81,905		$	66,634		22.9	%	$	239,946		$	183,365		30.9	%
As a percentage of revenue	16.4		%	16.8		%			16.8		%	16.1		%

The increase in general and administrative expenses for the three- and nine-month periods ended September 30, 2014, as compared to the same periods in 2013, was primarily due to the expansion of company infrastructure to support investments in engineering, go-to-market capacity and enterprise expansion initiatives. In particular, we increased general and administrative headcount and our facility footprint, which increased payroll and related costs, facilities-related costs and depreciation and amortization. In addition, acquisition-related costs increased for the nine-month period ended September 30, 2014 due to the acquisition of Prolexic.

During the last quarter of 2014, we expect general and administrative expenses to increase in absolute dollars as compared to each of the first three quarters of 2014, due to anticipated higher payroll and related costs and facilities-related costs attributable to increased hiring, investment in information technology and planned facility expansion.

Amortization of Acquired Intangible Assets

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
(in thousands)	2014			2013			% Change		2014			2013			% Change
Amortization of acquired intangible assets	$	8,403		$	4,859		72.9	%	$	23,654		$	16,653		42.0	%
As a percentage of revenue	1.7		%	1.2		%			1.7		%	1.5		%

The increase in amortization of acquired intangible assets for the three- and nine-month periods ended September 30, 2014 as compared to the same periods in 2013 was primarily due to the amortization of assets related to the acquisition of Prolexic. Based on our intangible assets at September 30, 2014, we expect amortization of acquired intangible assets to be approximately $8.4 million for the fourth quarter of 2014, and $26.8 million, $25.2 million, $23.1 million and $16.2 million for 2015, 2016, 2017 and 2018, respectively.

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Restructuring (Benefits) Charges

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
(in thousands)	2014			2013			% Change		2014			2013			% Change
Restructuring (benefits) charges	$	(115	)	$	69		(266.7	)%	$	1,189		$	891		33.4	%
As a percentage of revenue	—		%	—		%			0.1		%	0.1		%

The restructuring (benefits) charges for the three- and nine-month periods ended September 30, 2014 consisted of severance and related activity as a result of the acquisition of Prolexic, in addition to a contract termination fee incurred during the second quarter of 2014. The charges for the three- and nine-month periods ended September 30, 2013 consisted of pending workforce claims prior to 2013.

Interest Income

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
(in thousands)	2014			2013			% Change		2014			2013			% Change
Interest income	$	2,010		$	1,458		37.9	%	$	5,389		$	4,543		18.6	%
As a percentage of revenue	0.4		%	0.4		%			0.4		%	0.4		%

For the periods presented, interest income consists of interest earned on invested cash balances and marketable securities.

Interest Expense

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
(in thousands)	2014			2013			% Change		2014			2013			% Change
Interest expense	$	(4,482	)	$	—		100.0	%	$	(10,939	)	$	—		100.0	%
As a percentage of revenue	(0.9		)%	—		%			(0.8		)%	—		%

For the periods presented, interest expense consists of the amortization of the debt discount and debt issuance costs related to our convertible senior notes issued in February 2014.

Other Expense, Net

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
(in thousands)	2014			2013			% Change		2014			2013			% Change
Other expense, net	$	(188	)	$	(305	)	(38.4	)%	$	(1,968	)	$	(96	)	1,950.0	%
As a percentage of revenue	—		%	(0.1		)%			(0.1		)%	—		%

Other expense, net primarily represents net foreign exchange gains and losses incurred and other non-operating expense and income items. The fluctuations in other expense, net for the three- and nine-month periods ended September 30, 2014, as compared to the same periods in 2013, were primarily due to foreign currency exchange rate fluctuations on inter-company and other non-functional currency transactions. Other expense, net may fluctuate in the future based upon changes in foreign exchange rates or other events.

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Provision for Income Taxes

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
(in thousands)	2014			2013			% Change		2014			2013			% Change
Provision for income taxes	$	26,424		$	20,918		26.3	%	$	109,078		$	89,521		21.8	%
As a percentage of revenue	5.3		%	5.3		%			7.6		%	7.8		%
Effective income tax rate	22.5		%	20.8		%			31.5		%	29.6		%

For the nine months ended September 30, 2014, our effective income tax rate was primarily lower than the federal statutory tax rate due to a state tax benefit from software development activities and income from foreign jurisdictions that is taxed at lower rates compared to the statutory tax rates in the United States; partially offset by the effects of accounting for stock-based compensation in accordance with the authoritative guidance for share-based payments and state income taxes.  For the nine months ended September 30, 2013, our effective income tax rate was lower than the federal statutory tax rate mainly due to the federal benefit recorded related to the domestic production activities deduction, the composition of income in foreign jurisdictions with lower rates, as well as the reinstatement of the federal research and development credit at the beginning of 2013, which included a one-time retroactive impact for fiscal year 2012.

The increase in the provision for income taxes in the nine-month period ended September 30, 2014 as compared to the same period in 2013 was mainly due to the increase in operating income in 2014, a change in the composition of projected income in different jurisdictions and the expiration of the federal research and development credit at the end of 2013, partially offset by the federal domestic production activities deduction and state software development activities benefit.

While we expect our effective income tax rate to increase slightly during the fourth quarter of 2014, due to discrete items in the third quarter of 2014 that had a positive impact on our tax rate, this expectation does not take into consideration the effect of potential other one-time discrete items that may be recorded in the future. The effective tax rate could be different depending on the nature and timing of dispositions of incentive stock options and other employee equity awards. Further, our effective tax rate may fluctuate within a fiscal year and from quarter to quarter due to items arising from discrete events, including settlements of tax audits and assessments, the resolution or identification of tax position uncertainties and acquisitions of other companies.

In determining our net deferred tax assets and valuation allowances, annualized effective tax rates and cash paid for income taxes, management is required to make judgments and estimates about domestic and foreign profitability, the timing and extent of the utilization of net operating loss carryforwards, applicable tax rates, transfer pricing methodologies and tax planning strategies. Judgments and estimates related to our projections and assumptions are inherently uncertain; therefore, actual results could differ materially from our projections.

We have recorded certain tax reserves to address potential exposures involving our income tax and sales and use tax positions. These potential tax liabilities result from the varying application of statutes, rules, regulations and interpretations by different taxing jurisdictions. Our estimate of the value of these tax reserves reflects assumptions based on past experiences and judgments about the interpretation of statutes, rules and regulations by taxing jurisdictions. It is possible that the ultimate tax liability or benefit from these matters may be materially greater or less than the amount that we have estimated.

Non-GAAP Financial Measures

In addition to providing financial measurements based on GAAP, we publicly discuss additional financial measures that are not prepared in accordance with GAAP, or non-GAAP financial measures. Management uses non-GAAP financial measures, in addition to GAAP financial measures, to understand and compare operating results across accounting periods, for financial and operational decision making, for planning and forecasting purposes and to evaluate our financial performance. These non-GAAP financial measures are: non-GAAP income from operations, non-GAAP operating margin, non-GAAP net income, non-GAAP net income per diluted share, Adjusted EBITDA and Adjusted EBITDA margin, as discussed below.

Management believes that these non-GAAP financial measures reflect our ongoing business in a manner that allows for meaningful comparisons and analysis of trends in our business, as they exclude expenses and gains that may be infrequent, unusual in nature or otherwise not reflective of our ongoing operating results. Management also believes that these non-GAAP financial measures provide useful information to investors in understanding and evaluating our operating results and future

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prospects in the same manner as management and in comparing financial results across accounting periods and to those of peer companies.

The non-GAAP financial measures do not replace the presentation of our GAAP financial measures and should only be used as a supplement to, not as a substitute for, our financial results presented in accordance with GAAP.

The non-GAAP adjustments, and our basis for excluding them from non-GAAP financial measures, are outlined below:

• Amortization of acquired intangible assets – We have incurred amortization of intangible assets, included in our GAAP financial statements, related to various acquisitions we made. The amount of an acquisition's purchase price allocated to intangible assets and term of its related amortization can vary significantly and are unique to each acquisition; therefore, we exclude amortization of acquired intangible assets from our non-GAAP financial measures to provide investors with a consistent basis for comparing pre- and post-acquisition operating results.

• Stock-based compensation and amortization of capitalized stock-based compensation – Although stock-based compensation is an important aspect of the compensation paid to our employees and executives, the expense varies with changes in the stock price and market conditions at the time of grant, varying valuation methodologies, subjective assumptions and the variety of award types. This makes the comparison of our current financial results to previous and future periods difficult to interpret; therefore, we believe it is useful to exclude stock-based compensation and amortization of capitalized stock-based compensation from our non-GAAP financial measures in order to better understand the performance of our core business performance and to be consistent with the way investors evaluate our performance and compare our operating results to peer companies.

• Acquisition-related costs – Acquisition-related costs include transaction fees, due diligence costs and other one-time direct costs associated with strategic activities. In addition, subsequent adjustments to our initial estimated amount of contingent consideration associated with specific acquisitions are included within acquisition-related costs. These amounts are impacted by the timing and size of the acquisitions. We exclude acquisition-related costs from our non-GAAP financial measures to provide a useful comparison of our operating results to prior periods and to our peer companies because such amounts vary significantly based on the magnitude of our acquisition transactions.

• Restructuring (benefits) charges – We have incurred restructuring (benefits) charges that are included in our GAAP financial statements, primarily related to workforce reductions and estimated costs of exiting facility lease commitments. We exclude these items from our non-GAAP financial measures when evaluating our continuing business performance as such items are not consistently recurring and do not reflect expected future operating expense, nor provide meaningful insight into the fundamentals of current or past operations of our business.

• Benefit from adoption of software development activities –We recognized a benefit to non-income-related tax expense associated with the adoption of software development activities. We exclude this item from our non-GAAP financial measures because transactions of this nature occur infrequently and are not considered part of our core business operations.

• Gains and other activity related to divestiture of a business – We recognized a gain and other activity related to the divestiture of our Advertising Decision Solutions business. We exclude gains and other activity related to divestiture of a business from our non-GAAP financial measures because transactions of this nature occur infrequently and are not considered part of our core business operations.

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• Amortization of debt discount and issuance costs and amortization of capitalized interest expense – In February 2014, we issued $690 million of convertible senior notes due 2019 with a coupon interest rate of 0%. The imputed interest rate of the convertible senior notes was approximately 3.2%. This is a result of the debt discount recorded for the conversion feature that is required to be separately accounted for as equity, thereby reducing the carrying value of the convertible debt instrument. The debt discount is amortized as interest expense together with the issuance costs of the debt which are recorded as an asset in the consolidated balance sheet. All of our interest expense is comprised of these non-cash components and is excluded from management's assessment of our operating performance because management believes the non-cash expense is not indicative of ongoing operating performance.

• Loss on investments – We have incurred losses from the impairment of certain investments. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as they occur infrequently, are not representative of our core business operations or meaningful in evaluating our business results.

• Income tax effect of non-GAAP adjustments and certain discrete tax items – The non-GAAP adjustments described above are reported on a pre-tax basis. The income tax effect of non-GAAP adjustments is the difference between GAAP and non-GAAP income tax expense. Non-GAAP income tax expense is computed on non-GAAP pre-tax income (GAAP pre-tax income adjusted for non-GAAP adjustments) and excludes certain discrete tax items (such as recording or release of valuation allowances), if any. We believe that applying the non-GAAP adjustments and their related income tax effect allows us to more properly reflect the income attributable to our core operations.

The following table reconciles GAAP income from operations to non-GAAP income from operations and non-GAAP operating margin for the periods presented (in thousands):

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2014			2013			2014			2013
Income from operations	$	120,239		$	99,521		$	353,437		$	298,212
Amortization of acquired intangible assets	8,403			4,859			23,654			16,653
Stock-based compensation	28,008			24,479			84,800			72,211
Amortization of capitalized stock-based compensation	3,556			2,224			7,500			6,103
Amortization of capitalized interest expense	45			—			63			—
Acquisition-related costs	270			219			4,454			587
Restructuring (benefits) charges	(115		)	69			1,189			891
Benefit from adoption of software development activities	(2,670		)	—			(2,670		)	—
(Gain) and other activity related to divestiture of a business	—			1,093			—			(1,188		)
Non-GAAP income from operations	$	157,736		$	132,464		$	472,427		$	393,469
Non-GAAP operating margin	32		%	33		%	33		%	34		%

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The following table reconciles GAAP net income to non-GAAP net income and non-GAAP net income per diluted share for the periods presented (in thousands, except per share data):

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2014			2013			2014			2013
Net income	$	91,155		$	79,756		$	236,841		$	213,138
Amortization of acquired intangible assets	8,403			4,859			23,654			16,653
Stock-based compensation	28,008			24,479			84,800			72,211
Amortization of capitalized stock-based compensation	3,556			2,224			7,500			6,103
Amortization of capitalized interest expense	45			—			63			—
Acquisition-related costs	270			219			4,454			587
Restructuring (benefits) charges	(115		)	69			1,189			891
Benefit from adoption of software development activities	(2,670		)	—			(2,670		)	—
(Gain) and other activity related to divestiture of a business	—			1,093			—			(1,188		)
Amortization of debt discount and issuance costs	4,482			—			10,939			—
Loss on investments	—			—			393			—
Income tax effect of above non-GAAP adjustments and certain discrete tax items	(21,771		)	(22,439		)	(45,333		)	(40,891		)
Non-GAAP net income	$	111,363		$	90,260		$	321,830		$	267,504
GAAP net income per diluted share	$	0.50		$	0.44		$	1.31		$	1.17
Non-GAAP net income per diluted share	$	0.62		$	0.50		$	1.78		$	1.47
Shares used in diluted per share calculations	180,955			181,922			181,278			181,623

Non-GAAP net income per diluted share is calculated as non-GAAP net income divided by diluted weighted average common shares outstanding. GAAP diluted weighted average shares outstanding are adjusted in non-GAAP per share calculations for the shares that would be delivered to us pursuant to the note hedge transactions entered into in connection with the issuance of $690.0 million in par value of convertible senior notes due 2019. Under GAAP, shares delivered under hedge transactions are not considered offsetting shares in the fully diluted share calculation until they are delivered. However, we would receive a benefit from the note hedge transactions and would not allow the dilution to occur, so management believes that adjusting for this benefit provides a meaningful view of net income per share. Until our weighted average stock price is greater than $89.56, the initial conversion price, there will be no difference between our GAAP and non-GAAP diluted weighted average common shares outstanding.

We consider Adjusted EBITDA to be another important indicator of the operational strength and performance of our business and a good measure of our historical operating trends. Adjusted EBITDA eliminates items that are either not part of our core operations or do not require a cash outlay. We define Adjusted EBITDA as GAAP net income excluding the following items: interest income; income taxes; depreciation and amortization of tangible and intangible assets; stock-based compensation; amortization of capitalized stock-based compensation; restructuring (benefits) charges; acquisition-related costs; certain gains and losses on investments; benefit from adoption of software development activities deduction; gains and other activity related to divestiture of a business; foreign exchange gains and losses; loss on early extinguishment of debt; amortization of debt discount and issuance costs; amortization of capitalized interest expense; gains and losses on legal settlements; and other non-recurring or unusual items that may arise from time to time. Adjusted EBITDA margin represents Adjusted EBITDA stated as a percentage of revenue.

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The following table reconciles GAAP net income to Adjusted EBITDA and Adjusted EBITDA margin for the periods presented (in thousands):

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2014			2013			2014			2013
Net income	$	91,155		$	79,756		$	236,841		$	213,138
Amortization of acquired intangible assets	8,403			4,859			23,654			16,653
Stock-based compensation	28,008			24,479			84,800			72,211
Amortization of capitalized stock-based compensation	3,556			2,224			7,500			6,103
Amortization of capitalized interest expense	45			—			63			—
Acquisition-related costs	270			219			4,454			587
Restructuring (benefits) charges	(115		)	69			1,189			891
Benefit from adoption of software development activities	(2,670		)	—			(2,670		)	—
(Gain) and other activity related to divestiture of a business	—			1,093			—			(1,188		)
Interest income	(2,010		)	(1,458		)	(5,389		)	(4,543		)
Amortization of debt discount and issuance costs	4,482			—			10,939			—
Provision for income taxes	26,424			20,918			109,078			89,521
Depreciation and amortization	55,411			40,871			148,426			111,699
Other expense, net	188			305			1,968			96
Adjusted EBITDA	$	213,147		$	173,335		$	620,853		$	505,168
Adjusted EBITDA margin	43		%	44		%	43		%	44		%

Impact of Foreign Currency Exchange Rates on Revenue

Revenue from our international operations has historically been an important contributor to our total revenue. Consequently, our revenue results have been impacted, and management expects they will continue to be impacted, by fluctuations in foreign currency exchange rates. For example, when the local currencies of our foreign subsidiaries weaken, our consolidated results stated in U.S. dollars are negatively impacted.

Because exchange rates are a meaningful factor in understanding period-to-period comparisons, management believes the presentation of the impact of foreign currency exchange rates on revenue enhances the understanding of our revenue results and evaluation of performance in comparison to prior periods. The information presented is calculated by translating current period results using the same average foreign currency exchange rates per month from the comparative period.

Liquidity and Capital Resources

To date, we have financed our operations primarily through public and private sales of debt and equity securities and cash generated by operations. As of September 30, 2014, our cash, cash equivalents and marketable securities, which consisted primarily of corporate bonds and U.S. government agency securities, totaled $1.6 billion. We place our cash investments in instruments that meet high quality credit standards, as specified in our investment policy. Our investment policy also limits the amount of our credit exposure to any one issue or issuer and seeks to manage these assets to achieve our goals of preserving principal and maintaining adequate liquidity at all times.

Changes in cash, cash equivalents and marketable securities are dependent upon changes in, among other things, working capital items such as deferred revenues, accounts payable, accounts receivable and various accrued expenses, as well as changes in our capital and financial structure due to common stock repurchases, debt repurchases and issuances, stock option exercises, purchases and sales of marketable securities and similar events. We believe our strong balance sheet and cash position are important competitive differentiators that provide the financial flexibility necessary to make investments at opportune times. We expect to continue to evaluate strategic investments to strengthen our business on an ongoing basis.

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As of September 30, 2014, we had cash and cash equivalents of $139.9 million held in accounts outside the United States. An immaterial amount of these funds would be subject to U.S. federal taxation if repatriated, with such tax liability partially offset by foreign tax credits. The remainder of our cash and cash equivalents held outside the United States are subject to, or offset by, inter-company obligations to our parent company in the United States and, therefore, are not subject to United States federal taxation. As a result, our liquidity is not materially impacted by the amount of cash and cash equivalents held in accounts outside the United States.

Cash Provided by Operating Activities

	For the Nine Months Ended September 30,
(in thousands)	2014			2013
Net income	$	236,841		$	213,138
Non-cash reconciling items included in net income	264,581			188,200
Changes in operating assets and liabilities	(38,893		)	(9,162		)
Net cash flows provided by operating activities	$	462,529		$	392,176

The increase in cash provided by operating activities for the nine-month period ended September 30, 2014 as compared to the same period in 2013 was primarily due to increased profitability, partially offset by the timing of collections and payments of working capital, particularly in the timing of estimated tax payments.

Cash Used in Investing Activities

	For the Nine Months Ended September 30,
(in thousands)	2014			2013
Cash paid for acquired businesses, net of cash acquired	$	(386,532	)	$	(27,420	)
Purchases of property and equipment and capitalization of internal-use software development costs	(226,307		)	(197,738		)
Net marketable securities activity	(436,776		)	(58,854		)
Other investing activity	7,222			(2,559		)
Net cash used in investing activities	$	(1,042,393	)	$	(286,571	)

The increase in cash used in investing activities for the nine-month period ended September 30, 2014 as compared to the same period in 2013, primarily relates to the acquisition of Prolexic. The increase also relates to the increase in net purchases of marketable securities as a result of investment of the proceeds of our convertible senior notes issuance. Expenditures for internal-use software also increased during the nine-month period ended September 30, 2014 as compared to the same period in 2013 as we continued to invest in our network with the goal of enhancing and adding functionality to our service offerings.

We expect capital expenditures to increase in the fourth quarter of 2014 as compared to each of the first three quarters of 2014, related to planned investment in our network infrastructure intended to enable us to handle the traffic growth we expect on the network in the future. We also expect increased spending as a result of planned global facility build-outs and IT-related expenditures to support our increase in headcount and expansion of company infrastructure to support our engineering and go-to-market capacity.

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Cash Provided by (Used in) Financing Activities

	For the Nine Months Ended September 30,
(in thousands)	2014			2013
Activity related to convertible senior notes	$	655,413		$	—
Activity related to stock-based compensation	56,114			44,011
Repurchases of common stock	(226,513		)	(112,408		)
Other financing activities	(19,437		)	—
Net cash provided by (used in) financing activities	$	465,577		$	(68,397	)

Cash provided by financing activities during the nine-month period ended September 30, 2014 was primarily the result of the convertible senior notes issued in February 2014 and related note hedge and warrant transactions. Concurrent with the convertible senior notes issuance, we also repurchased $62.0 million of our common stock, which contributed to the increase in repurchases of common stock as compared to the nine-month period ended September 30, 2013.

In October 2013, the Board of Directors authorized a $750.0 million share repurchase program, effective from October 16, 2013 through December 31, 2016. The goal of the October 2013 share repurchase program is to both offset dilution from our equity compensation plans and to provide the flexibility to increase distributions to our shareholders as business and market conditions warrant.

During the nine-month period ended September 30, 2014, we repurchased 3.9 million shares of common stock at a weighted average price of $57.71 per share for an aggregate of $226.5 million. During the nine-month period ended September 30, 2013, we repurchased 2.8 million shares of common stock at a weighted average price of $39.65 per share for an aggregate of $112.4 million. The timing and amount of any future share repurchases will be determined by our management based on its evaluation of market conditions and other factors.

Convertible Senior Notes

In February 2014, we issued $690.0 million in par value of convertible senior notes due 2019 and entered into related convertible note hedge and warrant transactions. The terms of the notes, hedge and warrant transactions are discussed more fully in Note 6 to the consolidated financial statements included elsewhere in this quarterly report on Form 10-Q. We intend to use the net proceeds of the offering for share repurchases, working capital and general corporate purposes, including potential acquisitions and other strategic transactions.

In February 2014, we used $62.0 million of the net proceeds from the convertible senior notes to repurchase 1.0 million shares of our common stock in accordance with the share repurchase program previously approved by our Board of Directors.

Liquidity Outlook

We believe, based on our present business plan, that our current cash, cash equivalents and marketable securities balances and our forecasted cash flows from operations will be sufficient to meet our foreseeable cash needs for at least the next 24 months. Our foreseeable cash needs include our planned capital expenditures, salaries related to increased hiring, investments in information technology and facility expansion costs, in addition to anticipated share repurchases, lease and purchase commitments and settlements of other long-term liabilities.

Contractual Obligations

Our principal commitments consist of obligations under leases for office space, service agreements with co-location facilities for data center capacity and bandwidth usage and open vendor purchase orders. Our minimum commitments related to bandwidth usage and co-location services may vary from period to period depending on the timing and length of contract renewals with our service providers. As of September 30, 2014, there have been no significant changes in our future non-cancelable minimum payments under these commitments from those reported in our annual report on Form 10-K for the year ended December 31, 2013, other than normal period to period variations. Additionally, as discussed above, we have issued $690.0 million in par value of convertible senior notes due 2019. The notes do not bear regular interest and mature in February 2019, unless repurchased or converted prior to maturity.

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Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board issued updated guidance and disclosure requirements for recognizing revenue. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance will be effective for us on January 1, 2017 and may be applied retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. We are evaluating the potential impact of adopting this new accounting guidance.

Off-Balance Sheet Arrangements

We have entered into indemnification agreements with third parties, including vendors, customers, landlords, our officers and directors, shareholders of acquired companies, joint venture partners and third parties to which we license technology. Generally, these indemnification agreements require us to reimburse losses suffered by a third party due to various events, such as lawsuits arising from patent or copyright infringement or our negligence. These indemnification obligations are considered off-balance sheet arrangements in accordance with the authoritative guidance for guarantor’s accounting and disclosure requirements for guarantees, including indirect guarantees of indebtedness of others. See also Note 9 to our consolidated financial statements included in our annual report on Form 10-K for the year ended December 31, 2013 for further discussion of these indemnification agreements. The fair value of guarantees issued or modified during the three months ended September 30, 2014 was determined to be immaterial.

As of September 30, 2014, we did not have any additional material off-balance sheet arrangements.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Interest Rate Risk

Our portfolio of cash equivalents and short- and long-term investments is maintained in a variety of securities, including U.S. government agency obligations, high-quality corporate debt securities and money market funds. Investments are classified as available-for-sale securities and carried at their fair market value with cumulative unrealized gains or losses recorded as a component of accumulated other comprehensive loss within stockholders' equity. A sharp rise in interest rates could have an adverse impact on the fair market value of certain securities in our portfolio. We do not currently hedge our interest rate exposure and do not enter into financial instruments for trading or speculative purposes.

Foreign Currency Risk

Growth in our international operations will incrementally increase our exposure to foreign currency fluctuations as well as other risks typical of international operations that could impact our business, including, but not limited to, differing economic conditions, changes in political climate, differing tax structures and other regulations and restrictions. Foreign exchange rate fluctuations may adversely impact our consolidated results of operations as exchange rate fluctuations on transactions denominated in currencies other than our functional currencies result in gains and losses that are reflected in our consolidated statements of operations. To the extent the U.S. dollar weakens against foreign currencies, the translation of these foreign currency-denominated transactions will result in increased net revenues and operating expenses. Conversely, our net revenues and operating expenses will decrease when the U.S. dollar strengthens against foreign currencies. We do not enter into financial instruments for trading or speculative purposes.

Transaction Exposure

The Company enters into short-term foreign currency forward contracts to offset foreign exchange gains and losses generated by the re-measurement of certain assets and liabilities recorded in non-functional currencies. Changes in the fair value of these derivatives, as well as re-measurement gains and losses, are recognized in our statements of operations within other expense, net. Foreign currency transaction gains and losses from these forward contracts were determined to be immaterial during the nine months ended September 30, 2014.

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Translation Exposure

Foreign exchange rate fluctuations may adversely impact our consolidated financial condition as the assets and liabilities of our foreign operations are translated into U.S. dollars in preparing our consolidated balance sheet. These gains or losses are recognized as an adjustment to stockholders' equity which is reflected in our balance sheet as accumulated other comprehensive loss.

Credit Risk

Concentrations of credit risk with respect to accounts receivable are limited to certain customers to which we make substantial sales. Our customer base consists of a large number of geographically dispersed customers diversified across numerous industries. To reduce risk, we routinely assess the financial strength of our customers. Based on such assessments, we believe that our accounts receivable credit risk exposure is limited. As of September 30, 2014, no customer had an accounts receivable balance of 10% or more of our accounts receivable. As of December 31, 2013, one customer had an account receivable balance of 10% of our accounts receivable. We believe that, at September 30, 2014, the concentration of credit risk related to accounts receivable was not significant.

Item 4. Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer (our principal executive officer and principal financial officer, respectively), evaluated the effectiveness of our disclosure controls and procedures as of September 30, 2014. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosures. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives, and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based on the evaluation of our disclosure controls and procedures as of September 30, 2014, our Chief Executive Officer and Chief Financial Officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

No change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the fiscal quarter ended September 30, 2014 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1.Legal Proceedings

We are party to litigation that we consider routine and incidental to our business. We do not currently expect the results of any of these litigation matters to have a material adverse effect on our business, results of operations, financial condition, or cash flows.

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Item 1A.Risk Factors

The following are certain of the important factors that could cause our actual operating results to differ materially from those indicated or suggested by forward-looking statements made in this quarterly report on Form 10-Q or presented elsewhere by management from time to time. We have not made any material changes in the risk factors previously disclosed in our annual report on Form 10-K for the year ended December 31, 2013.

We face intense competition, the consequences of which could adversely affect our business.

We compete in markets that are intensely competitive and rapidly changing. Our current and potential competitors vary by size, service offerings and geographic region and range from start ups that offer solutions competing with a discrete part of our business to large technology or telecommunications companies that offer, or may be planning to introduce, products and services that are broadly competitive with what we do. The primary competitive factors in our market are: excellence of technology, global presence, customer service, technical expertise, security, ease-of-use, breadth of services offered, price and financial strength. Competitors include some of our current partners and customers.

Many of our current and potential competitors have substantially greater financial, technical and marketing resources; larger customer bases; longer operating histories; greater brand recognition; and more established relationships in the industry than we do. As a result, some of these competitors may be able to:

• develop superior products or services, gain greater market acceptance, and expand their service offerings more efficiently or more rapidly;

• adapt to new or emerging technologies and changes in customer requirements more quickly;

• take advantage of acquisition and other opportunities more readily;

• adopt more aggressive pricing policies and devote greater resources to the promotion, marketing, and sales of their services; and

• devote greater resources to the research and development of their products and services.

Smaller and more nimble competitors may be able to:

• attract customers by offering less-sophisticated versions of services than we provide at lower prices than those we charge; and

• respond more quickly than we can to new or emerging technologies and changes in customer requirements, resulting in superior offerings.

Existing significant customers have in the past, and others may in the future, reduce or eliminate their purchases of our services because they:

• pursue a "do-it-yourself" approach by putting in place software and other technology solutions for content and application delivery within their internal systems;

• enter into relationships directly with network providers instead of relying on an overlay network like ours; or

• implement dual vendor policies to reduce reliance on external providers like us.

These approaches may also be pursued by potential customers. Consequently, our competitors include hardware manufacturers, software companies and other entities that offer Internet-related solutions that are not service-based.

Ultimately, increased competition of all types could result in price and revenue reductions, loss of customers and loss of market share, each of which could materially impact our business, profitability, financial condition, results of operations and cash flows.

The development of new services and enhancements to existing services are key to our revenue growth. If we fail to innovate effectively and adequately respond to emerging technological trends and customers' changing needs, our operating results and market share may suffer.

The market for our services is characterized by rapidly changing technology, evolving industry standards and new product and service introductions. We believe that developing innovative solutions is key to our revenue growth. We must do so in an environment where other competitors may develop products and services that are, or may be viewed as, better than ours. Failure to adequately develop new solutions that are attractive to customers may significantly impair our revenue growth.

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The process of developing new technologies is complex and uncertain; we must commit significant resources to developing new services or enhancements to our existing services before knowing whether our investments will result in services the market will accept. Furthermore, we may not successfully execute our technology initiatives because of errors in planning or timing, technical or operational hurdles that we fail to overcome in a timely fashion, misunderstandings about market demand or a lack of appropriate resources. In that case, we could see significant growth in expenses without any corresponding revenue increases.

We may be unable to replace lost revenues due to customer cancellations or renewals at lower rates.

Our customers have no obligation to renew their agreements for our services after the expiration of their existing terms, which are typically 12 to 24 months. We cannot predict our renewal rates. Some may elect not to renew and others may renew at lower prices, lower committed traffic levels, or for shorter contract lengths. Historically, a significant percentage of our renewals, particularly with larger customers, have involved unit price declines as competition has increased and the market for certain parts of our business has matured. If that trend continues in the future, we will need to sell more services or attract new customers to increase our revenues and improve or maintain profitability. Our renewal rates may decline as a result of a number of factors, including competitive pressures, customer dissatisfaction with our services, customers' inability to continue their operations and spending levels, the impact of dual vendor policies, customers implementing or increasing their use of in-house technology solutions and general economic conditions. It is key to our profitability that we offset lost committed recurring revenue due to customer cancellations, terminations, price reductions or other less favorable terms by adding new customers and increasing the number of high-margin services, features and functionalities that our existing customers purchase. If we are unable to do so, our revenue will decline and our business will suffer.

We may be unsuccessful at developing strategic relationships with third parties that expand our distribution channels and increase revenues, which could significantly limit our long-term growth.

Our future success will likely require us to maintain and increase the number and depth of our relationships with resellers, systems integrators, product makers and other strategic partners and to leverage those relationships to expand our distribution channels and increase revenues. The need to develop such relationships can be particularly acute in areas outside of the United States. We have not always been successful at developing these relationships due to the complexity of our services, our historical reliance on an internal sales force, a past lack of strategic focus on such arrangements and other factors. Recruiting and retaining qualified channel partners and training them in the use of our technology and services requires significant time and resources. In order to develop and expand our distribution channel, we must continue to expand and improve our portfolio of solutions as well as the systems, processes and procedures that support our channels. Those systems, processes and procedures may become increasingly complex and difficult to manage. The time and expense required for the sales and marketing organizations of our channel partners to become familiar with our offerings, including our new services developments, may make it more difficult to introduce those products to enterprises. Our failure to maintain and increase the number and quality of relationships with channel partners, and any inability to successfully execute on the partnerships we initiate, could significantly impede our revenue growth prospects in the short and long term.

Numerous other factors could cause our revenue growth rate and profitability to decline.

Our revenue growth rate and profitability may decline in future periods as a result of a number of other factors, including:

• failure to experience traffic growth and increase sales of our core services and advanced features;

• changes in our customers' business models that we do not fully anticipate or that we fail to address adequately;

• customers, particularly larger media customers, implementing their own data centers and delivery approaches to limit their reliance on third party providers like us;

• macro-economic pressures; and

• failure of a significant number of customers to pay our fees on a timely basis or at all or failure to continue to purchase our services in accordance with their contractual commitments.

We plan our expense levels and investment on estimates of future revenue and future anticipated rate of growth. Many of our expenses are fixed cost in nature for some minimum amount of time, such as with co-location and bandwidth providers, so it may not be possible to reduce costs in a timely manner or without the payment of fees to exit certain obligations early. We also face higher expenses due to increased headcount and if customers shift significant amounts of their traffic to our secure socket layer, or SSL, network. Therefore, if our revenue does not increase as forecasted, we may not be able to maintain our current level of profitability in 2014 or on a quarterly or annual basis thereafter.

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As part of our business strategy, we have entered, and may seek to enter, into business combinations, acquisitions, and other strategic relationships that may be difficult to integrate, disrupt our business, dilute stockholder value and divert management attention.

We have completed numerous acquisitions in recent years. If attractive acquisition opportunities arise in the future, we may seek to enter into additional business combinations or purchases. We may also enter into other types of strategic relationships that involve technology sharing or close cooperation with other companies. Acquisitions and other complex transactions are accompanied by a number of risks, including the following:

• the difficulty of integrating the operations and personnel of acquired companies;

• the potential disruption of our ongoing business;

• the potential distraction of management;

• expenses related to the transactions;

• increased accounting charges such as impairment of goodwill or intangible assets, amortization of intangible assets acquired and a reduction in the useful lives of intangible assets acquired; and

• potential unknown liabilities associated with acquired businesses.

Any inability to integrate completed acquisitions or combinations in an efficient and timely manner could have an adverse impact on our results of operations. In addition, we may not be able to recognize any expected synergies or benefits in connection with a future acquisition or combination. If we are not successful in completing acquisitions or other strategic transactions that we may pursue in the future, we may incur substantial expenses and devote significant management time and resources without a successful result. Future acquisitions could require use of substantial portions of our available cash or result in dilutive issuances of securities. Technology sharing or other strategic relationships we enter into may give rise to disputes over intellectual property ownership, operational responsibilities and other significant matters. Such disputes may be expensive and time-consuming to resolve.

Our failure to manage effectively our operations as our business evolves could harm us.

Our future operating results will depend on our ability to manage our operations. As a result of the diversification of our business, personnel growth, acquisitions and international expansion in recent years, many of our employees are now based outside of our Cambridge, Massachusetts headquarters; however, most key management decisions are made by a relatively small group of individuals based primarily at our headquarters. If we are unable to appropriately increase management depth, enhance succession planning and decentralize our decision-making at a pace commensurate with our actual or desired growth rates, we may not be able to achieve our financial or operational goals.

We have greatly increased our employee base in recent years and have brought in hundreds of new employees through acquisitions. It is important to our continued success that we hire qualified employees, properly train them and manage out poorly-performing personnel, all while maintaining our corporate culture and spirit of innovation. If we are not successful at these efforts, our growth and operations could be adversely affected.

As our business evolves, we must also expand and adapt our operational infrastructure. Our business relies on our data systems, billing systems and other operational and financial reporting and control systems. All of these systems have become increasingly complex due to the diversification and complexity of our business, acquisitions of new businesses with different systems and increased regulation over controls and procedures. To manage our technical support infrastructure effectively and improve our sales efficiency, we will need to continue to upgrade and improve our data systems, billing systems, ordering processes and other operational and financial systems, procedures and controls. These upgrades and improvements will require a dedication of resources, are likely to be complex and increasingly rely on hosted computer services from third parties that we do not control. If we are unable to adapt our systems and organization in a timely, efficient and cost-effective manner to accommodate changing circumstances, our business may be adversely affected. If the third parties we rely on for hosted data solutions for our internal network and information systems are subject to a security breach or otherwise suffer disruptions that impact the services we utilize, the integrity and availability of our internal information could be compromised causing the loss of confidential or proprietary information.

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We face risks associated with international operations that could harm our business.

We have operations in numerous foreign countries and may continue to expand our sales and support operations internationally. Such expansion could require us to make significant expenditures, which could harm our profitability. We are increasingly subject to a number of risks associated with international business activities that may increase our costs, lengthen our sales cycle and require significant management attention. These risks include:

• currency exchange rate fluctuations and limitations on the repatriation and investment of funds;

• difficulties in transferring funds from, or converting currencies in, certain countries;

• unexpected changes in regulatory requirements;

• interpretations of laws or regulations that would subject us to regulatory supervision or, in the alternative, require us to exit a country, which could have a negative impact on the quality of our services or our results of operations;

• uncertainty regarding liability for content or services;

• adjusting to different employee/employer relationships and different regulations governing such relationships;

• corporate and personal liability for alleged or actual violations of laws and regulations;

• difficulty in staffing, developing and managing foreign operations as a result of distance, language and cultural differences;

• reliance on channel partners over which we have limited control or influence on a day-to-day basis; and

• potentially adverse tax consequences.

In addition, compliance with complex foreign and U.S. laws and regulations that apply to our international operations increases our cost of doing business. These numerous, rapidly-changing and sometimes conflicting laws and regulations include internal control and disclosure rules, data privacy and filtering requirements, anti-corruption laws, such as the Foreign Corrupt Practices Act, the UK Bribery Act and local laws prohibiting corrupt payments to governmental officials, and antitrust and competition regulations, among others. Violations of these laws and regulations by our employees or partners could result in fines and penalties, criminal sanctions against us, our officers, or our employees, prohibitions on the conduct of our business and on our ability to offer our products and services in one or more countries, and could also materially affect our brand, our international expansion efforts, our ability to attract and retain employees, our business, and our operating results. Although we have implemented policies and procedures designed to ensure compliance with these laws and regulations, there can be no assurance that our employees, contractors or agents will not violate our policies or applicable laws.

Our corporate culture has contributed to our success, and if we cannot maintain this culture, we could lose the innovation, creativity, and teamwork fostered by our culture, and our operating results may be harmed.

In our view, a critical contributor to our success has been our corporate culture, which we believe fosters innovation, creativity, and teamwork. If we implement more complex organizational management structures because of growth or other structural changes or create disparities in personal wealth among our employees through our compensation philosophy and benefit plan utilization, we may find it increasingly difficult to maintain the beneficial aspects of our corporate culture. If we cannot maintain a favorable corporate culture, then we could lose employee engagement, which can cause employees to lose the desire to innovate, foster teamwork and provide extraordinary assistance to our customers which could negatively impact our future operating results.

Defects or disruptions in our services could diminish demand for our solutions and subject us to substantial liability.

Our services are highly complex and are designed to be deployed in and across numerous large and complex networks that we do not control. From time to time, we have needed to correct errors and defects in the software that underlies our services and platform. We have also experienced customer dissatisfaction with the quality of some of our media delivery services which has led to loss of business and could lead to loss of customers in the future. There may be additional errors and defects in our software that may adversely affect our operations. We may not have in place adequate quality assurance procedures to ensure that we detect errors in our software in a timely manner, and we may have insufficient resources to efficiently cope with multiple service incidents happening simultaneously or in rapid succession. As we acquire companies, we may encounter difficulty in incorporating the acquired technologies into our offerings and maintaining the quality standards that are consistent with our brand and reputation. If we are unable to efficiently and cost-effectively fix errors or other problems that may be identified and improve the quality of our services, or if there are unidentified errors that allow persons to improperly access our services, we could experience loss of revenues and market share, damage to our reputation, increased expenses, delayed payments and legal actions by our customers. If we elect to move into new areas that involve legal and regulatory complexities, the potential risks we face and magnitude of losses could increase.

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Any unplanned interruption in the functioning of our network or services or attacks on our internal information technology systems could lead to significant costs and disruptions that could reduce our revenues and harm our business, financial results and reputation.

Our business is dependent on providing our customers with fast, efficient and reliable distribution of applications and content over the Internet. For our core services, we currently provide a standard guarantee that our networks will deliver Internet content 24 hours a day, 7 days a week, 365 days a year. If we do not meet this standard, affected customers may be entitled to credits. Our network or services could be disrupted by numerous events, including natural disasters, unauthorized access to our servers, failure or refusal of our third party network providers to provide the necessary capacity, power losses, human error and intentional disruptions of our services, such as disruptions caused by software viruses or attacks by unauthorized users.

Our increased focus on selling security-related solutions could increase the number and intensity of attacks against our systems.

As we expand our emphasis on selling security-related solutions, we may become a more attractive target for attacks on our infrastructure. In particular, the acquisition of Prolexic has increased our visibility as a security-focused company. Our security risks will also increase as we continue to grow our cloud-based offerings and services, especially in customer sectors such as health sciences, financial services and the government that involve particularly sensitive data. In the risk factor that follows, we describe the form that attacks typically take and the associated potential repercussions.

Successful cybersecurity attacks and other security breaches could expose us to liability and our reputation and business could suffer.

We are in the information technology business, and our services and network transmit and store our customers' information and data as well as our own. We have a reputation for a secure and reliable platform and services and have invested a great deal of time and resources in protecting the integrity and security of our services and internal and external data that we manage. Nevertheless, there have been, and in the future are likely to be, attempts to gain unauthorized access to our information technology systems in order to steal information about our technology, financial data or customer information or take other actions that would be damaging to our customers and us.

Such attacks have been, and will continue to be, pursued through viruses, worms and other malicious software programs that attack our platform, exploit potential security vulnerabilities of our services or technology on which we rely, create system disruptions, or cause shutdowns or denials of service. Some intrusions may remain undetected for an extended period of time, which would increase their effectiveness and the potential to harm us. Data and systems that are important to us may also be accessed or modified improperly as a result of employee or supplier error or malfeasance, and third parties may attempt to fraudulently induce employees or customers into disclosing sensitive information such as user names, passwords or other information in order to gain access to our data, our customers' data or our IT systems. We have acquired a number of companies over the years and may continue to do so in the future. While we make significant efforts to address any IT security issues with respect to our acquisitions, we may still inherit such risks when we integrate these acquisitions within Akamai.

We have deployed security measures and continually evaluate the threat landscape and ways to mitigate risks associated with new and existing hazards; however, there is no guarantee that the precautions we take will always be effective. If future attacks against our infrastructure are successful, they could lead to widespread interruption of the functioning of our network or services, which would reduce our revenues and could harm our business, financial results and reputation. Any breach of the security of our information systems could lead to the unauthorized release of valuable confidential information, including trade secrets, material nonpublic information about us or our customers, personally-identifiable information about individuals, financial information and sensitive data that others could use to compete against us. Such events would likely harm our business and reputation and lead to loss of customers and increased legal liability. If the security solutions we offer to address the Internet security needs of our customers fail to operate effectively or to provide benefits promised by us, we could suffer from reduced revenues, harm to our business and reputation and increased liability to our customers for the losses they suffer. Any insurance coverage we carry may not be sufficient to cover all or a significant portion of the losses we could suffer from an attack.

We may have insufficient transmission and co-location space, which could result in disruptions to our services and loss of revenues.

Our operations are dependent in part upon transmission capacity provided by third party telecommunications network providers and access to co-location facilities to house our servers. There can be no assurance that we are adequately prepared for unexpected increases in bandwidth demands by our customers. The bandwidth we have contracted to purchase may become

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unavailable for a variety of reasons, including payment disputes, network providers going out of business, networks imposing traffic limits or governments adopting regulations that impact network operations. In some regions, network providers may choose to compete with us and become unwilling to sell us adequate transmission capacity at fair market prices. Any failure of network providers on which we rely to provide the capacity we require, due to financial or other reasons, may result in a reduction in, or disruption to, service to our customers and ultimately loss of those customers. In recent years, it has become increasingly expensive to house our servers at network facilities. We expect this trend to continue. In addition, customers have increasingly elected to transmit their content over our SSL network, which is more costly for us to operate and could require significant additional investment for us. These increased expenses have made, and will make, it more costly for us to expand our operations and more difficult for us to maintain or improve our profitability.

The potential exhaustion of the supply of unallocated IPv4 addresses and the inability of Akamai and other Internet users to successfully transition to IPv6 could harm our operations and the functioning of the Internet as a whole.

An Internet Protocol address, or IP address, is a numerical label that is assigned to any device connecting to the Internet. Today, the functioning of the Internet is dependent on the use of Internet Protocol version 4, or IPv4, the fourth version of the Internet Protocol, which uses 32-bit addresses. We currently rely on the acquisition of IP addresses for the functioning and expansion of our network and expect such reliance to continue in the future. There are, however, only a finite number of IPv4 addresses. The supply of unallocated IPv4 addresses is likely to be exhausted in the near future. Internet Protocol version 6, or IPv6, uses 128-bit addresses and has been designed to succeed IPv4 and alleviate the expected exhaustion of unallocated addresses under that version. While IPv4 and IPv6 will co-exist for some period of time, eventually all Internet users and companies will need to transition to IPv6. There can be no guarantee that the plans we have been developing for the transition to IPv6 will be effective. If we are unable to obtain the IPv4 addresses we need, on financial terms acceptable to us or at all, before we or other entities that rely on the Internet can transition to IPv6, our current and future operations could be materially harmed. If there is not a timely and successful transition to IPv6 by Internet users generally, the Internet could function less effectively, which could damage numerous businesses, the economy generally and the prospects for future growth of the Internet as a medium for transacting business. This could, in turn, be harmful to our financial condition, results of operations and cash flows.

Our stock price has been, and may continue to be, volatile, and your investment could lose value.

The market price of our common stock has been volatile. Trading prices may continue to fluctuate in response to a number of events and factors, including the following:

• quarterly variations in operating results;

• introduction of new products, services and strategic developments by us or our competitors;

• market speculation about whether we are a takeover target;

• changes in financial estimates and recommendations by securities analysts;

• failure to meet the expectations of securities analysts;

• purchases or sales of our stock by our officers and directors;

• macro-economic factors;

• repurchases of shares of our common stock;

• performance by other companies in our industry; and

• geopolitical conditions such as acts of terrorism or military conflicts.

Furthermore, our revenues, particularly those attributable to usage of our services beyond customer commitments, can be difficult to forecast, and, as a result, our quarterly operating results can fluctuate substantially. This concern is particularly acute with respect to our media customers and our commerce customers for which holiday sales are a key but unpredictable driver of usage of our services. As we introduce new services and potentially increase software licensing, we expect to face additional challenges with our forecasting processes. Also, because a significant portion of our cost structure is largely fixed in the short-term, revenue shortfalls tend to have a disproportionately negative impact on our profitability. If we announce revenue or profitability results that do not meet or exceed our guidance or make changes in our guidance with respect to future operating results, our stock price may decrease significantly in reaction.

Any of these events, as well as other circumstances discussed in these Risk Factors, may cause the price of our common stock to fall. In addition, the stock market in general, and the market prices for technology companies in particular, have experienced significant volatility that often has been unrelated to the operating performance of such companies. These broad market and industry fluctuations may adversely affect the market price of our common stock, regardless of our operating performance.

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Any failure to meet our debt obligations would damage our business.

As of September 30, 2014, we had total par value of $690.0 million of convertible senior notes outstanding.  Our ability to refinance the notes, make cash payments in connection with conversions of the notes or repurchase those notes in the event of a fundamental change (as defined in the indenture governing the notes) will depend on market conditions and our future performance, which is subject to economic, financial, competitive and other factors beyond our control.  We also may not use the cash we have raised through the issuance of the convertible senior notes in an optimally productive and profitable manner. If we are unable to remain profitable or if we use more cash than we generate in the future, our level of indebtedness could adversely affect our future operations by increasing our vulnerability to adverse changes in general economic and industry conditions and by limiting or prohibiting our ability to obtain additional financing for future capital expenditures, acquisitions and general corporate and other purposes. In addition, if we are unable to make cash payments upon conversion of the notes we would be required to issue significant amounts of our common stock, which would be dilutive to existing stockholders. If we do not have sufficient cash to repurchase notes following a fundamental change we would be in default under the terms of the notes, which could seriously harm our business.  In addition, the terms of the notes do not limit the amount of future indebtedness we may incur.  If we incur significantly more debt, this could intensify the risks described above.

We may issue additional shares of our common stock or instruments convertible into shares of our common stock and thereby materially and adversely affect the market price of our common stock.

We are not restricted from issuing additional shares of our common stock or other instruments convertible into, or exchangeable or exercisable for, shares of our common stock. If we issue additional shares of our common stock or instruments convertible into shares of our common stock, it may materially and adversely affect the market price of our common stock.

If we are unable to retain our key employees and hire qualified sales and technical personnel, our ability to compete could be harmed.

Our future success depends upon the continued services of our executive officers and other key technology, sales, marketing and support personnel who have critical industry experience and relationships. There is significant competition for talented individuals in the regions in which our primary offices are located, which affects both our ability to retain key employees and hire new ones. None of our officers or key employees is bound by an employment agreement for any specific term. Members of our senior management team have left Akamai over the years for a variety of reasons, and we cannot be certain that there will not be additional departures, which may be disruptive to our operations. The loss of the services of any of our key employees could hinder or delay the implementation of our business model and the development and introduction of, and negatively impact our ability to sell, our services.

We may need to defend against patent or copyright infringement claims, which would cause us to incur substantial costs.

Other companies or individuals, including our competitors, may hold or obtain patents or other proprietary rights that would prevent, limit or interfere with our ability to make, use or sell our services or develop new services, which could make it more difficult for us to increase revenues and improve or maintain profitability. Entities holding Internet-related patents or other intellectual property rights are increasingly bringing suits alleging infringement of such rights against both technology providers and customers that use such technology. Any such action naming Akamai could be costly to defend or lead to an expensive settlement or judgment against us.

We have agreed to indemnify our customers if our services infringe specified intellectual property rights; therefore, we could become involved in litigation brought against customers if it is alleged that our services and technology are implicated. Any litigation or claims, whether or not valid, brought against us or pursuant to which we indemnify our customers could result in substantial costs and diversion of resources and require us to do one or more of the following:

• cease selling, incorporating or using products or services that incorporate the challenged intellectual property;

• pay substantial damages and incur significant litigation expenses;

• obtain a license from the holder of the infringed intellectual property right, which license may not be available on reasonable terms or at all; or

• redesign products or services.

If we are forced to take any of these actions, our business may be seriously harmed.

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Our business will be adversely affected if we are unable to protect our intellectual property rights from unauthorized use or infringement by third parties.

We rely on a combination of patent, copyright, trademark and trade secret laws and restrictions on disclosure to protect our intellectual property rights. These legal protections afford only limited protection. We have previously brought lawsuits against entities that we believed were infringing our intellectual property rights but have not always prevailed. Such lawsuits can be expensive and require a significant amount of attention from our management and technical personnel, and the outcomes are unpredictable. Monitoring unauthorized use of our services is difficult, and we cannot be certain that the steps we have taken will prevent unauthorized use of our technology, particularly in foreign countries where the laws may not protect our proprietary rights as fully as in the United States. Furthermore, we cannot be certain that any pending or future patent applications will be granted, that any future patent will not be challenged, invalidated or circumvented, or that rights granted under any patent that may be issued will provide competitive advantages to us. If we are unable to protect our proprietary rights from unauthorized use, the value of our intellectual property assets may be reduced. Although we have licensed from other parties proprietary technology covered by patents, we cannot be certain that any such patents will not be challenged, invalidated or circumvented. Such licenses may also be non-exclusive, meaning our competition may also be able to access such technology.

If our license agreement with MIT terminates, our business could be adversely affected.

We have licensed from the Massachusetts Institute of Technology, or MIT, technology that is covered by various patents and copyrights relating to Internet content delivery technology. Some of our core technology is based in part on the technology covered by these patents, patent applications and copyrights. Our license is effective for the life of the patents and patent applications; however, under limited circumstances, such as a cessation of our operations due to our insolvency or our material breach of the terms of the license agreement, MIT has the right to terminate our license. A termination of our license agreement with MIT could have a material adverse effect on our business. These patents are scheduled to expire over the next five years.

We rely on certain “open-source” software the use of which could result in our having to distribute our proprietary software, including our source code, to third parties on unfavorable terms, which could materially affect our business.

Certain of our service offerings use software that is subject to open-source licenses. Open-source code is software that is freely accessible, usable and modifiable. Certain open-source code is governed by license agreements, the terms of which could require users of such software to make any derivative works of the software available to others on unfavorable terms or at no cost. Because we use open-source code, we may be required to take remedial action in order to protect our proprietary software. Such action could include replacing certain source code used in our software, discontinuing certain of our products or taking other actions that could be expensive and divert resources away from our development efforts. In addition, the terms relating to disclosure of derivative works in many open-source licenses are unclear. We periodically review our compliance with the open-source licenses we use and do not believe we will be required to make our proprietary software freely available. However, if a court interprets one or more such open-source licenses in a manner that is unfavorable to us, we could be required to make certain of our key software available at no cost.

If our ability to deliver media files in popular proprietary content formats were to become restricted or cost-prohibitive, demand for our content delivery services could decline, we could lose customers and our financial results could suffer.

Significant portions of our business depend on our ability to deliver media content in all major formats. If our legal right or technical ability to store and deliver content in one or more popular proprietary content formats, such as Adobe^® Flash^® or Windows^® Media, were to become limited, our ability to serve our customers in these formats would be impaired. Owners of proprietary content formats may be able to block, restrict or impose fees or other costs on our use of such formats, which could lead to additional expenses for us and for our customers, or which could prevent our delivery of this type of content altogether. Such interference could result in a loss of existing customers, increased costs and impairment of our ability to attract new customers, which would harm our revenue, operating results and growth.

If the accounting estimates we make, and the assumptions on which we rely, in preparing our financial statements prove inaccurate, our actual results may be adversely affected.

Our financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these financial statements requires us to make estimates and judgments about, among other things, taxes, revenue recognition, stock-based compensation costs, capitalization of internal-use software development costs, investments, contingent obligations, allowance for doubtful accounts, intangible assets and restructuring charges. These

42

estimates and judgments affect, among other things, the reported amounts of our assets, liabilities, revenues and expenses, the amounts of charges accrued by us, and related disclosure of contingent assets and liabilities. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances and at the time they are made. If our estimates or the assumptions underlying them are not correct, actual results may differ materially from our estimates and we may need to, among other things, accrue additional charges that could adversely affect our results of operations, which in turn could adversely affect our stock price. In addition, new accounting pronouncements and interpretations of accounting pronouncements have occurred and may occur in the future that could adversely affect our reported financial results.

We may have exposure to greater-than-anticipated tax liabilities.

Our future income taxes could be adversely affected by earnings being lower than anticipated in jurisdictions that have lower statutory tax rates and higher than anticipated in jurisdictions that have higher statutory tax rates, or changes in tax laws, regulations, or accounting principles, as well as certain discrete items such as equity-related compensation.  We have recorded certain tax reserves to address potential exposures involving our income, sales and use and franchise tax positions. These potential tax liabilities result from the varying application of statutes, rules, regulations and interpretations by different jurisdictions. Our reserves, however, may not be adequate to cover our total actual liability. Although we believe our estimates, reserves and the positions we have taken are reasonable, the ultimate tax outcome may differ from the amounts recorded in our financial statements and may materially affect our financial results in the period or periods for which such determination is made.

If we fail to maintain an effective system of internal controls, we may not be able to accurately report our financial results or prevent fraud. As a result, our stockholders could lose confidence in our financial reporting, which could harm our business and the trading price of our common stock.

We have complied with Section 404 of the Sarbanes-Oxley Act of 2002 by assessing, strengthening and testing our system of internal controls. Even though we concluded our internal controls over financial reporting were effective as of the end of the period covered by this report, we need to continue to maintain our processes and systems and adapt them to changes as our business evolves and we rearrange management responsibilities and reorganize our business accordingly. This continuous process of maintaining and adapting our internal controls and complying with Section 404 is expensive and time-consuming and requires significant management attention. We cannot be certain that our internal control measures will continue to provide adequate control over our financial processes and reporting and ensure compliance with Section 404. Furthermore, as our business changes and if we expand through acquisitions of other companies, our internal controls may become more complex and we will require significantly more resources to ensure our internal controls remain effective. Failure to implement required new or improved controls, or difficulties encountered in their implementation, could harm our operating results or cause us to fail to meet our reporting obligations. If we or our independent registered public accounting firm identify material weaknesses, the disclosure of that fact, even if quickly remediated, could reduce the market's confidence in our financial statements and harm our stock price.

Fluctuations in foreign currency exchange rates affect our operating results in U.S. dollar terms.

An increasing portion of our revenues is derived from international operations. Revenues generated and expenses incurred by our international subsidiaries are often denominated in the currencies of the local countries. As a result, our consolidated U.S. dollar financial statements are subject to fluctuations due to changes in exchange rates as the financial results of our international subsidiaries are translated from local currencies into U.S. dollars. In addition, our financial results are subject to changes in exchange rates that impact the settlement of transactions in non-functional currencies. While we have implemented a foreign currency hedging program to mitigate transactional exposures, there is no guarantee that such program will be fully effective.

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Internet-related and other laws could adversely affect our business.

Laws and regulations that apply to communications and commerce over the Internet are becoming more prevalent. In particular, the growth and development of the market for online commerce has prompted calls for more stringent copyright protection, tax, consumer protection, cybersecurity, content, anti-discrimination and privacy laws, both in the United States and abroad, that may impose additional burdens on companies conducting business online or providing Internet-related services such as ours. Other potential regulatory proposals could seek to mandate changes to the economic relationships among participants in the Internet ecosystem. The adoption of any of these measures could negatively affect both our business directly as well as the businesses of our customers, which could reduce their demand for our services. In addition, domestic and foreign government attempts to regulate the operation of the Internet through net neutrality rules or other legislation, treaties or regulations could negatively impact our business even if our business is not the direct target of such regulations.

Changes in regulations or user concerns regarding privacy and protection of user data could adversely affect our business.

Federal, state, foreign and international laws and regulations may govern the collection, use, retention, sharing and security of data that we receive from our customers, visitors to their websites and others. In addition, we have a publicly-available privacy policy concerning collection, use and disclosure of user data. Any failure, or perceived failure, by us to comply with our posted privacy policies or with any privacy-related laws, government regulations or directives, or industry self-regulatory principles could result in damage to our reputation or proceedings or actions against us by governmental entities or others, which could potentially have an adverse effect on our business.

A large number of legislative proposals pending before the U.S. Congress, various state legislative bodies and foreign governments concern data privacy and retention issues related to our business. It is not possible to predict whether, when, or the extent to which such legislation may be adopted. In addition, the interpretation and application of user data protection laws are currently unsettled. These laws may be interpreted and applied inconsistently from jurisdiction to jurisdiction and inconsistently with our current data protection policies and practices. Complying with potentially varying international requirements could cause us to incur substantial costs or require us to change our business practices in a manner adverse to our business.

Our sales to government clients subject us to risks including early termination, audits, investigations, sanctions and penalties.

We have customer contracts with the U.S. government, as well as foreign, state and local governments and their respective agencies. Such government entities often have the right to terminate these contracts at any time, without cause. There is increased pressure for governments and their agencies, both domestically and internationally, to reduce spending. Most of our government contracts are subject to legislative approval of appropriations to fund the expenditures under these contracts. These factors may join to limit the revenues we derive from government contracts in the future. Additionally, government contracts generally have requirements that are more complex that those found in commercial enterprise agreements and therefore more costly to comply with. Such contracts are also subject to audits and investigations that could result in civil and criminal penalties and administrative sanctions, including termination of contracts, refund of a portion of fees received, forfeiture of profits, suspension of payments, fines and suspensions or debarment from future government business.

General global market and economic conditions may have an adverse impact on our operating performance, results of operations and cash flows.

Our business has been and could continue to be affected by general global economic and market conditions. Weakness in the United States and/or in economies outside the United States and could continue to have a negative effect on our operating results, including decreases in revenues and operating cash flows. To the extent economic conditions impair our customers' ability to profitably monetize the content we deliver on their behalf, they may reduce or eliminate the traffic we deliver for them. Such reductions in traffic would lead to a reduction in our revenues. Additionally, in a down-cycle economic environment, we may experience the negative effects of increased competitive pricing pressure, customer loss, a slow down in commerce over the Internet and corresponding decrease in traffic delivered over our network and failures by customers to pay amounts owed to us on a timely basis or at all. Suppliers on which we rely for servers, bandwidth, co-location and other services could also be negatively impacted by economic conditions that, in turn, could have a negative impact on our operations or expenses. There can be no assurance, therefore, that current economic conditions or worsening economic conditions or a prolonged or recurring recession will not have a significant adverse impact on our operating results.

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Global climate change regulations could adversely impact our business.

Recent scientific studies and other news reports suggest the possibility of global climate change. In response, governments may adopt new regulations affecting the use of fossil fuels or requiring the use of alternative fuel sources. In addition, our customers may require us to take steps to demonstrate that we are taking ecologically responsible measures in operating our business. Our deployed network of servers consumes significant energy resources, including those generated by the burning of fossil fuels. It is possible that future regulatory or legislative initiatives or customer demands could affect the costs of operating our network of servers and our other operations. Such costs and any expenses we incur to make our network more energy efficient could make us less profitable in future periods. Failure to comply with applicable laws and regulations or other requirements imposed on us could lead to fines, lost revenues and damage to our reputation.

Provisions of our charter, by-laws and Delaware law may have anti-takeover effects that could prevent a change in control even if the change in control would be beneficial to our stockholders.

Provisions of our charter, by-laws and Delaware law could make it more difficult for a third party to control or acquire us, even if doing so would be beneficial to our stockholders. These provisions include:

• a classified board structure so that only approximately one-third of our board of directors is up for re-election in any one year;

• our board of directors has the right to elect directors to fill a vacancy created by the expansion of the board of directors or the resignation, death or removal of a director, which prevents stockholders from being able to fill vacancies on our board of directors;

• stockholders must provide advance notice to nominate individuals for election to the board of directors or to propose matters that can be acted upon at a stockholders' meeting; such provisions may discourage or deter a potential acquirer from conducting a solicitation of proxies to elect the acquirer's own slate of directors or otherwise attempting to obtain control of our company; and

• our board of directors may issue, without stockholder approval, shares of undesignated preferred stock; the ability to issue undesignated preferred stock makes it possible for our board of directors to issue preferred stock with voting or other rights or preferences that could impede the success of any attempt to acquire us.

Further, as a Delaware corporation, we are also subject to certain Delaware anti-takeover provisions. Under Delaware law, a corporation may not engage in a business combination with any holder of 15% or more of its capital stock unless the holder has held the stock for three years or, among other things, the board of directors has approved the transaction. Our board of directors could rely on Delaware law to prevent or delay an acquisition of us.

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Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

(c) Issuer Purchases of Equity Securities

The following is a summary of our repurchases of our common stock in the third quarter of 2014 (in thousands, except share and per share data):

Period (1)	(a) Total Number of Shares Purchased (2)	(b) Average Price Paid per Share (3)		(c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (4)	(d) Approximate Dollar Value of Shares that May Yet be Purchased Under Plans or Programs(4)
July 1, 2014 – July 31, 2014	217,671	$	60.12	217,671	$	501,698
August 1, 2014 – August 31, 2014	225,253	58.91		225,253	488,427
September 1, 2014 – September 30, 2014	206,044	61.45		206,044	475,766
Total	648,968	$	60.12	648,968	$	475,766

(1) Information is based on settlement dates of repurchase transactions.

(2) Consists of shares of our common stock, par value $0.01 per share. All repurchases were made pursuant to a previously-announced program.

(3) Includes commissions paid.

(4) In October 2013, the Board of Directors authorized a $750.0 million share repurchase program, effective from October 16, 2013 through December 31, 2016. The share repurchase program was announced on October 23, 2013.

Item 6. Exhibits

The exhibits filed as part of this quarterly report on Form 10-Q are listed in the exhibit index immediately preceding the exhibits and are incorporated herein.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Akamai Technologies, Inc.
November 10, 2014	By:	/s/ James Benson
		James Benson
		Chief Financial Officer (Duly Authorized Officer, Principal Financial Officer)

47

EXHIBIT INDEX

Exhibit 31.1	Certification of Chief Executive Officer pursuant to Rule 13a-14(a)/ Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended
Exhibit 31.2	Certification of Chief Financial Officer pursuant to Rule 13a-14(a)/ Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended
Exhibit 32.1	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
Exhibit 32.2	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	XBRL Instance Document*
101.SCH	XBRL Taxonomy Extension Schema Document*
101.CAL	XBRL Taxonomy Calculation Linkbase Document*
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document*
101.LAB	XBRL Taxonomy Label Linkbase Document*
101.PRE	XBRL Taxonomy Presentation Linkbase Document*

* Submitted electronically herewith

Attached as Exhibit 101 to this report are the following formatted in XBRL (Extensible Business Reporting Language): (i) Consolidated Balance Sheets at September 30, 2014 and December 31, 2013, (ii) Consolidated Statements of Operations for the three and nine months ended September 30, 2014 and 2013, (iii) Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2014 and 2013, (iv) Consolidated Statements of Cash Flows for the nine months ended September 30, 2014 and 2013 and (v) Notes to Unaudited Consolidated Financial Statements.

48

EX-31.1

EXHIBIT 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, F. Thomson Leighton, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Akamai Technologies, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	November 10, 2014	/s/ F. Thomson Leighton
		F. Thomson Leighton, Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, James Benson, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Akamai Technologies, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	November 10, 2014	/s/ James Benson
		James Benson, Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report on Form 10-Q of Akamai Technologies, Inc. (the “Company”) for the period ended September 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, F. Thomson Leighton, Chief Executive Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, that to his knowledge:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	November 10, 2014	/S/    F. Thomson Leighton
		F. Thomson Leighton, Chief Executive Officer

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report on Form 10-Q of Akamai Technologies, Inc. (the “Company”) for the period ended September 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, James Benson, Chief Financial Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, that to his knowledge:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	November 10, 2014	/s/ James Benson
		James Benson, Chief Financial Officer

XML

Convertible Senior Notes - Narrative (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	1 Months Ended	9 Months Ended
	Feb. 28, 2014 D	Sep. 30, 2014	Sep. 30, 2013
Debt Instrument [Line Items]
Debt issued	$ 690,000,000	$ 690,000,000
Conversion rate (in shares)	11.1651
Principal amount per conversion	1,000
Conversion price (in dollars per share)	$ 89.56
Threshold trading days exceeding price	20
Threshold consecutive trading days exceeding price	30 days
Threshold greater than percentage of stock price trigger	130.00%
Threshold trading days not exceeding price	5
Threshold consecutive trading days not exceeding price	5 days
Threshold less than percentage of stock price trigger	98.00%
Potential conversion shares of convertible debt (in shares)	7.7
Fair value of convertible senior notes		691,700,000
Closing price of common stock (in dollars per share)		$ 59.80
Repurchases of common stock	62,000,000	226,513,000	112,408,000
Payments for purchase of convertible note hedge and warrant transactions	23,300,000
Payments for note hedge transactions	101,300,000	101,292,000	0
Note hedge shares outstanding (in shares)	7.7
Warrants outstanding (in shares)	7.7
Warrant strike price (in dollars per share)	$ 104.49
Proceeds from sale of warrants	$ 78,000,000	$ 77,970,000	$ 0
Effective interest rate	3.20%

XML

Net Income per Share - Schedule of Components Used in Diluted and Basic Income Per Common Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Numerator [Abstract]
Net income (in dollars)	$ 91,155	$ 79,756	$ 236,841	$ 213,138
Denominator [Abstract]
Shares used for basic net income per share	178,186	178,235	178,324	178,008
Effect of dilutive securities:
Convertible senior notes	0	0	0	0
Warrants related to issuance of convertible senior notes	0	0	0	0
Shares used for diluted net income per share	180,955	181,922	181,278	181,623
Basic net income per share (in dollars per share)	$ 0.51	$ 0.45	$ 1.33	$ 1.20
Diluted net income per share (in dollars per share)	$ 0.50	$ 0.44	$ 1.31	$ 1.17
Stock options
Effect of dilutive securities:
Dilutive securities	1,146	1,580	1,257	1,693
RSUs and deferred stock units
Effect of dilutive securities:
Dilutive securities	1,623	2,107	1,697	1,922

XML

Goodwill and Acquired Intangible Assets - Schedule of Goodwill (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Schedule of Goodwill
Balance as of January 1, 2014	$ 757,368
Acquisition of Prolexic Technologies, Inc.	291,679
Balance as of September 30, 2014	$ 1,049,047

XML

Net Income per Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share Reconciliation [Abstract]

Schedule of Components Used in Diluted and Basic Income Per Common Share

The following table sets forth the components used in the computation of basic and diluted net income per share for the three and nine months ended September 30, 2014 and 2013 (in thousands, except per share data):

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2014		2013		2014		2013
Numerator:
Net income	$	91,155	$	79,756	$	236,841	$	213,138
Denominator:
Shares used for basic net income per share	178,186		178,235		178,324		178,008
Effect of dilutive securities:
Stock options	1,146		1,580		1,257		1,693
RSUs and deferred stock units	1,623		2,107		1,697		1,922
Convertible senior notes	—		—		—		—
Warrants related to issuance of convertible senior notes	—		—		—		—
Shares used for diluted net income per share	180,955		181,922		181,278		181,623
Basic net income per share	$	0.51	$	0.45	$	1.33	$	1.20
Diluted net income per share	$	0.50	$	0.44	$	1.31	$	1.17

Schedule of Shares Excluded from Computation of Diluted Earnings Per Share

The number of potentially outstanding shares excluded from the computation of diluted net income per share for the three and nine months ended September 30, 2014 and 2013 are as follows (in thousands):

	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
	2014	2013	2014	2013
Stock options	261	1,308	462	1,782
Service-based RSUs	797	37	773	234
Performance-based RSUs	565	1,140	572	1,145
Convertible senior notes	—	—	—	—
Warrants related to issuance of convertible senior notes	—	—	—	—

XML

Stockholders' Equity - Narrative (Details) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Oct. 31, 2013
Stockholders' Equity Note [Abstract]
Stock repurchase program, authorized amount					$ 750,000,000
Shares repurchased during period (in shares)			3.9
Value of shares repurchased during period			226,500,000
Amortization expense from capitalized stock-based compensation	$ 3,600,000	$ 2,200,000	$ 7,500,000	$ 6,100,000

XML

Business Acquisitions - Schedule of Preliminary Allocation of the Purchase Price (Details) (USD $)			0 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Feb. 18, 2014 Prolexic Technologies, Inc.
Business Acquisition [Line Items]
Total purchase consideration			$ 392,104,000
Allocation of the purchase consideration:
Cash			33,072,000
Accounts receivable			11,208,000
Property and equipment			12,225,000
Identifiable intangible assets			87,040,000
Goodwill	1,049,047,000	757,368,000	291,679,000
Deferred tax assets			16,000,000
Other current and long-term assets			5,850,000
Total assets acquired			457,074,000
Other current liabilities			(6,019,000)
Current deferred revenue			(5,812,000)
Deferred tax liabilities			(33,723,000)
Debt, capital leases and other long-term liabilities			(19,416,000)
Total liabilities assumed			(64,970,000)
Net assets acquired			$ 392,104,000

XML

Net Income per Share - Schedule of Shares Excluded from Computation of Diluted EPS (Details) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities	261	1,308	462	1,782
Service-based RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities	797	37	773	234
Performance-based RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities	565	1,140	572	1,145
Convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities	0	0	0	0
Warrants related to issuance of convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities	0	0	0	0

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Fair Value Measurements

9 Months Ended

Sep. 30, 2014

Marketable Securities [Abstract]

Fair Value Measurements

Fair Value Measurements

The following is a summary of available-for-sale marketable securities held as of September 30, 2014 and December 31, 2013 (in thousands):

			Gross Unrealized							Classification on Balance Sheet
	Amortized Cost		Gains		Losses			Aggregate Fair Value		Short-Term Marketable Securities		Long-Term Marketable Securities
As of September 30, 2014
Certificates of deposit	$	52	$	—	$	—		$	52	$	—	$	52
Commercial paper	22,487		1		(2		)	22,486		22,486		—
Corporate bonds	1,032,801		870		(1,646		)	1,032,025		399,682		632,343
U.S. government agency obligations	293,146		37		(326		)	292,857		74,405		218,452
	$	1,348,486	$	908	$	(1,974	)	$	1,347,420	$	496,573	$	850,847
As of December 31, 2013
Certificates of deposit	$	222	$	—	$	—		$	222	$	173	$	49
Corporate bonds	736,945		1,197		(281		)	737,861		278,318		459,543
U.S. government agency obligations	174,982		51		(85		)	174,948		61,514		113,434
	$	912,149	$	1,248	$	(366	)	$	913,031	$	340,005	$	573,026

Unrealized gains and unrealized temporary losses on investments classified as available-for-sale are included within accumulated other comprehensive loss in the consolidated balance sheets. Upon realization, those amounts are reclassified from accumulated other comprehensive loss to interest income in the statements of operations. The Company does not believe any unrealized losses represent other than temporary impairments based on the evaluation of available evidence. As of September 30, 2014 and December 31, 2013, there were no securities in a continuous unrealized loss position for more than 12 months.

The following table details the fair value measurements within the fair value hierarchy of the Company’s financial assets and liabilities at September 30, 2014 and December 31, 2013 (in thousands):

	Total Fair Value			Fair Value Measurements at Reporting Date Using
				Level 1		Level 2		Level 3
As of September 30, 2014
Cash Equivalents and Marketable Securities:
Money market funds	$	2,936		$	2,936	$	—	$	—
Certificates of deposit	52			52		—		—
Commercial paper	22,486			—		22,486		—
Corporate bonds	1,032,025			—		1,032,025		—
U.S. government agency obligations	292,857			—		292,857		—
	$	1,350,356		$	2,988	$	1,347,368	$	—
Other Liabilities:
Contingent consideration obligation related to Velocius acquisition	$	(900	)	$	—	$	—	$	(900	)
As of December 31, 2013
Cash Equivalents and Marketable Securities:
Money market funds	$	40,482		$	40,482	$	—	$	—
Certificates of deposit	3,418			3,418		—		—
Commercial paper	29,999			—		29,999		—
Corporate bonds	737,861			—		737,861		—
U.S. government agency obligations	174,948			—		174,948		—
	$	986,708		$	43,900	$	942,808	$	—
Other Assets:
Note receivable	$	22,879		$	—	$	—	22,879
Other Liabilities:
Contingent consideration obligation related to Velocius acquisition	$	(2,600	)	$	—	$	—	$	(2,600	)

As of September 30, 2014 and December 31, 2013, the Company grouped money market funds and certificates of deposit using a Level 1 valuation because market prices for such investments are readily available in active markets. As of September 30, 2014 and December 31, 2013, the Company grouped commercial paper, U.S. government agency obligations and corporate bonds using a Level 2 valuation because quoted prices for identical or similar assets are available in markets that are inactive.

When developing fair value estimates, the Company maximizes the use of observable inputs and minimizes the use of unobservable inputs. When available, the Company uses quoted market prices to measure fair value. The valuation technique used to measure fair value for the Company's Level 1 and Level 2 assets is a market approach, using prices and other relevant information generated by market transactions involving identical or comparable assets. If market prices are not available, the fair value measurement is based on models that use primarily market-based parameters including yield curves, volatilities, credit ratings and currency rates. In certain cases where market rate assumptions are not available, the Company is required to make judgments about assumptions market participants would use to estimate the fair value of a financial instrument.

The valuation technique used to measure fair value of the Company's Level 3 liability, which consists of a contingent consideration related to the acquisition of Velocius Networks, Inc. ("Velocius") (Note 5), is primarily an income approach. The significant unobservable input used in the fair value measurement of the Velocius contingent consideration is the likelihood of achieving development milestones to integrate the acquired technology into the Company's technology. During the third quarter of 2014, the first of two milestones was achieved and a portion of the contingent consideration was paid. The remaining milestone is payable in the third quarter of 2015, if achieved.

Increases or decreases in the underlying assumptions used to value the Company's Level 3 liability held at September 30, 2014 and December 31, 2013, could increase or decrease the fair value estimates recorded in the consolidated balance sheets.

The valuation technique used to measure fair value for the Company's Level 3 asset, which consisted of a $25.0 million face value convertible note receivable, was primarily an income approach, where the expected weighted average future cash flows were discounted back to present value. The significant unobservable inputs used in the fair value measurement of the convertible note receivable were the probability of conversion to equity and the fair value of equity into which the note was convertible. In the second quarter of 2014, the note was amended. Under the terms of the amendment, the note became convertible into shares of preferred stock of the issuer valued at $12.5 million at the time of conversion; the remaining $12.5 million was paid in the second and third quarters of 2014.

Contractual maturities of the Company’s available-for-sale marketable securities held at September 30, 2014 and December 31, 2013 were as follows (in thousands):

	September 30, 2014		December 31, 2013
Due in 1 year or less	$	496,573	$	340,005
Due after 1 year through 5 years	850,847		573,026
	$	1,347,420	$	913,031

The following table reflects the activity for the Company’s major classes of assets and liabilities measured at fair value using Level 3 inputs for the nine months ended September 30, 2014 (in thousands):

	Other Assets: Note Receivable			Other Liabilities: Contingent Consideration Obligation
Balance as of January 1, 2014	$	22,879		$	(2,600	)
Unrealized gain on convertible note receivable included in other comprehensive (loss) income	2,121			—
Amendment of the convertible note receivable for preferred stock of the issuer and cash	(25,000		)	—
Fair value adjustment to contingent consideration included in general and administrative expense	—			(300		)
Achievement of first milestone related to Velocius contingent consideration	—			2,000
Balance as of September 30, 2014	$	—		$	(900	)

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Stockholders' Equity - Schedule of Stock Based Compensation Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 28,008	$ 24,479	$ 84,800	$ 72,211
Provision for income taxes	(8,472)	(8,272)	(26,852)	(24,581)
Total stock-based compensation, net of income taxes	19,536	16,207	57,948	47,630
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	3,030	2,885	8,901	8,230
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	4,979	4,583	14,517	12,819
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	12,110	10,048	35,438	29,278
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 7,889	$ 6,963	$ 25,944	$ 21,884

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Fair Value Measurements - Schedule of Fair Value Measurement (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	$ 1,347,420	$ 913,031
Certificates of deposit
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	52	222
Commercial paper
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	22,486
Corporate bonds
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	1,032,025	737,861
U.S. government agency obligations
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	292,857	174,948
Total Fair Value
Cash Equivalents and Marketable Securities:
Cash equivalents and marketable securities	1,350,356	986,708
Other Assets:
Note receivable		22,879
Other Liabilities:
Contingent consideration obligation related to Velocius acquisition	(900)	(2,600)
Total Fair Value | Money market funds
Cash Equivalents and Marketable Securities:
Money market funds	2,936	40,482
Total Fair Value | Certificates of deposit
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	52	3,418
Total Fair Value | Commercial paper
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	22,486	29,999
Total Fair Value | Corporate bonds
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	1,032,025	737,861
Total Fair Value | U.S. government agency obligations
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	292,857	174,948
Level 1
Cash Equivalents and Marketable Securities:
Cash equivalents and marketable securities	2,988	43,900
Other Assets:
Note receivable		0
Other Liabilities:
Contingent consideration obligation related to Velocius acquisition	0	0
Level 1 | Money market funds
Cash Equivalents and Marketable Securities:
Money market funds	2,936	40,482
Level 1 | Certificates of deposit
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	52	3,418
Level 1 | Commercial paper
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	0	0
Level 1 | Corporate bonds
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	0	0
Level 1 | U.S. government agency obligations
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	0	0
Level 2
Cash Equivalents and Marketable Securities:
Cash equivalents and marketable securities	1,347,368	942,808
Other Assets:
Note receivable		0
Other Liabilities:
Contingent consideration obligation related to Velocius acquisition	0	0
Level 2 | Money market funds
Cash Equivalents and Marketable Securities:
Money market funds	0	0
Level 2 | Certificates of deposit
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	0	0
Level 2 | Commercial paper
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	22,486	29,999
Level 2 | Corporate bonds
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	1,032,025	737,861
Level 2 | U.S. government agency obligations
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	292,857	174,948
Level 3
Cash Equivalents and Marketable Securities:
Cash equivalents and marketable securities	0	0
Other Assets:
Note receivable		22,879
Other Liabilities:
Contingent consideration obligation related to Velocius acquisition	(900)	(2,600)
Level 3 | Money market funds
Cash Equivalents and Marketable Securities:
Money market funds	0	0
Level 3 | Certificates of deposit
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	0	0
Level 3 | Commercial paper
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	0	0
Level 3 | Corporate bonds
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	0	0
Level 3 | U.S. government agency obligations
Cash Equivalents and Marketable Securities:
Aggregate Fair Value	$ 0	$ 0

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Fair Value Measurements - Marketable Securities (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 1,348,486	$ 912,149
Gross Unrealized Gains	908	1,248
Gross Unrealized Losses	(1,974)	(366)
Aggregate Fair Value	1,347,420	913,031
Short-Term Marketable Securities	496,573	340,005
Long-Term Marketable Securities	850,847	573,026
Certificates of deposit
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	52	222
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Aggregate Fair Value	52	222
Short-Term Marketable Securities	0	173
Long-Term Marketable Securities	52	49
Commercial paper
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	22,487
Gross Unrealized Gains	1
Gross Unrealized Losses	(2)
Aggregate Fair Value	22,486
Short-Term Marketable Securities	22,486
Long-Term Marketable Securities	0
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,032,801	736,945
Gross Unrealized Gains	870	1,197
Gross Unrealized Losses	(1,646)	(281)
Aggregate Fair Value	1,032,025	737,861
Short-Term Marketable Securities	399,682	278,318
Long-Term Marketable Securities	632,343	459,543
U.S. government agency obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	293,146	174,982
Gross Unrealized Gains	37	51
Gross Unrealized Losses	(326)	(85)
Aggregate Fair Value	292,857	174,948
Short-Term Marketable Securities	74,405	61,514
Long-Term Marketable Securities	$ 218,452	$ 113,434

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Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Income Loss (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance as of January 1, 2014			$ (2,091)
Other comprehensive (loss) income	(12,042)	5,521	(7,454)	(3,794)
Balance as of September 30, 2014	(9,545)		(9,545)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance as of January 1, 2014			(6,715)
Other comprehensive (loss) income			(7,937)
Balance as of September 30, 2014	(14,652)		(14,652)
Net Unrealized Gain on Investments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance as of January 1, 2014			4,624
Other comprehensive (loss) income			483
Balance as of September 30, 2014	$ 5,107		$ 5,107

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Fair Value Measurements - Contractual Maturities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Fair Value Disclosures [Abstract]
Due in 1 year or less	$ 496,573	$ 340,005
Due after 1 year through 5 years	850,847	573,026
Aggregate fair value	$ 1,347,420	$ 913,031

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Fair Value Measurements - Schedule of Activity of Major Classes of Assets Measured at Fair Value Using Level 3 Inputs (Details) (Level 3, USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance as of January 1, 2014, other assets	$ 22,879
Balance as of January 1, 2014, other liabilities	(2,600)
Unrealized gain on convertible note receivable included in other comprehensive (loss) income	2,121
Amendment of the convertible note receivable for preferred stock of the issuer and cash	(25,000)
Fair value adjustment to contingent consideration included in general and administrative expense	(300)
Achievement of first milestone related to Velocius contingent consideration	2,000
Balance as of September 30, 2014, other assets	0
Balance as of September 30, 2014, other liabilities	$ (900)

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Nature of Business and Basis of Presentation

9 Months Ended

Sep. 30, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of Business and Basis of Presentation

Nature of Business and Basis of Presentation

Akamai Technologies, Inc. (the “Company”) provides cloud services for delivering, optimizing and securing online content and business applications. The Company's globally distributed platform comprises more than 160,000 servers in over 1,200 networks in over 90 countries. The Company was incorporated in Delaware in 1998 and is headquartered in Cambridge, Massachusetts. The Company currently operates in one industry segment: providing services for accelerating, improving and securing the delivery of content and applications over the Internet.

The accompanying interim consolidated financial statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. These financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in the accompanying financial statements.

Certain information and footnote disclosures normally included in the Company’s annual audited consolidated financial statements and accompanying notes have been condensed in, or omitted from these interim financial statements. Accordingly, the unaudited consolidated financial statements included herein should be read in conjunction with the audited consolidated financial statements and accompanying notes included in the Company’s annual report on Form 10-K for the year ended December 31, 2013, filed with the Securities and Exchange Commission on March 3, 2014.

The results of operations presented in this quarterly report on Form 10-Q are not necessarily indicative of the results of operations that may be expected for any future periods. In the opinion of management, these unaudited consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, that are necessary for a fair statement of the results of all interim periods reported herein.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board issued updated guidance and disclosure requirements for recognizing revenue. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized.  The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance will be effective for the Company on January 1, 2017 and may be applied retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption.  The Company is evaluating the potential impact of adopting this new accounting guidance.

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Accounts Receivable - Schedule of Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 332,613	$ 275,691
Allowance for doubtful accounts	(1,032)	(708)
Reserve for cash-basis customers	(4,834)	(2,995)
Total accounts receivable reserves	(5,866)	(3,703)
Accounts receivable, net	326,747	271,988
Trade accounts receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	235,166	175,391
Unbilled accounts receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross accounts receivable	$ 97,447	$ 100,300

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Convertible Senior Notes - Schedule of Convertible Senior Notes (Details) (USD $)	Sep. 30, 2014	Feb. 28, 2014	Dec. 31, 2013
Liability component:
Principal	$ 690,000,000	$ 690,000,000
Less: debt discount, net of amortization	(89,902,000)
Net carrying amount	600,098,000		0
Convertible senior notes
Liability component:
Equity component:	$ 101,276,000

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 214,339	$ 333,891
Marketable securities	496,573	340,005
Accounts receivable, net of reserves of $5,866 and $3,703 at September 30, 2014 and December 31, 2013, respectively	326,747	271,988
Prepaid expenses and other current assets	90,173	62,096
Deferred income tax assets	24,844	21,734
Total current assets	1,152,676	1,029,714
Property and equipment, net	559,194	450,287
Marketable securities	850,847	573,026
Goodwill	1,049,047	757,368
Acquired intangible assets, net	140,815	77,429
Deferred income tax assets	2,530	2,325
Other assets	99,182	67,536
Total assets	3,854,291	2,957,685
Current liabilities:
Accounts payable	74,801	73,710
Accrued expenses	173,985	150,385
Deferred revenue	50,582	36,952
Other current liabilities	2,233	2,119
Total current liabilities	301,601	263,166
Deferred revenue	3,647	3,199
Deferred income tax liabilities	25,099	4,737
Convertible senior notes	600,098	0
Other liabilities	75,466	57,152
Total liabilities	1,005,911	328,254
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.01 par value; 5,000,000 shares authorized; 700,000 shares designated as Series A Junior Participating Preferred Stock; no shares issued or outstanding	0	0
Common stock, $0.01 par value; 700,000,000 shares authorized; 182,119,856 shares issued and 178,194,979 shares outstanding at September 30, 2014 and 178,580,696 shares issued and outstanding at December 31, 2013	1,851	1,808
Additional paid-in capital	4,777,961	4,561,929
Accumulated other comprehensive loss	(9,545)	(2,091)
Treasury stock, at cost, 3,924,877 shares at September 30, 2014 and no shares at December 31, 2013	(226,513)	0
Accumulated deficit	(1,695,374)	(1,932,215)
Total stockholders’ equity	2,848,380	2,629,431
Total liabilities and stockholders’ equity	$ 3,854,291	$ 2,957,685

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Income Taxes - Narrative (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		45 Months Ended	57 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Effective income tax rate	31.50%	29.60%
Tax benefit recognized from adjustments and other provisions			$ 16.5	$ 13.3

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Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Tax on change in unrealized (loss) gain on investments, net	$ 715	$ (1,532)	$ 324	$ (629)

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Goodwill and Acquired Intangible Assets - Narrative (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of acquired intangible assets	$ 8,403,000	$ 4,859,000	$ 23,654,000	$ 16,653,000
Future amortization expense to be recognized in remainder of 2014	8,400,000		8,400,000
Future amortization expense 2015	26,800,000		26,800,000
Future amortization expense 2016	25,200,000		25,200,000
Future amortization expense 2017	23,100,000		23,100,000
Future amortization expense 2018	$ 16,200,000		$ 16,200,000

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Convertible Senior Notes (Tables)

9 Months Ended

Sep. 30, 2014

Debt Disclosure [Abstract]

Schedule of Convertible Senior Notes

The Notes consist of the following components (in thousands):

	September 30, 2014
Liability component:
Principal	$	690,000
Less: debt discount, net of amortization	(89,902		)
Net carrying amount	$	600,098
Equity component:	$	101,276

Schedule of Interest Expense

The following table sets forth total interest expense included in the statement of operations related to the Notes (in thousands):

	For the Three Months Ended September 30,			For the Nine Months Ended September 30,
	2014			2014
Amortization of debt discount	$	449		$	1,079
Amortization of debt issuance costs	4,712			11,373
Capitalization of interest expense	(679		)	(1,513		)
Total interest expense	$	4,482		$	10,939

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Business Acquisitions - Narrative (Details) (USD $)			0 Months Ended	9 Months Ended	0 Months Ended		0 Months Ended	3 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Feb. 18, 2014 Prolexic Technologies, Inc.	Sep. 30, 2014 Prolexic Technologies, Inc.	Nov. 08, 2013 Velocius	Sep. 30, 2014 Velocius	Nov. 30, 2012 Strategic Network Acquisition	Mar. 31, 2014 Strategic Network Acquisition	Sep. 30, 2013 Strategic Network Acquisition
Business Acquisition [Line Items]
Total purchase consideration			$ 392,104,000		$ 4,300,000		$ 55,000,000.0
Acquisition-related costs				4,100,000
Contingent consideration liability					2,600,000	900,000
Maximum potential payout of the contingent consideration					3,000,000
Allocated to goodwill	1,049,047,000	757,368,000	291,679,000		5,400,000
Allocated to intangible assets			87,040,000		2,500,000
Weighted Average Useful Life (in years)					7 years 10 months 24 days
Goodwill, expected tax deductible amount			62,400,000		300,000
Consideration paid								$ 27,500,000	$ 27,500,000

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Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2014

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table summarizes the changes in accumulated other comprehensive loss, which is reported as a component of stockholders' equity, for the nine months ended September 30, 2014 (in thousands):

	Foreign Currency Translation Adjustments			Net Unrealized Gain on Investments		Total
Balance as of January 1, 2014	$	(6,715	)	$	4,624	$	(2,091	)
Other comprehensive (loss) income	(7,937		)	483		(7,454		)
Balance as of September 30, 2014	$	(14,652	)	$	5,107	$	(9,545	)

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income	$ 236,841	$ 213,138
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	179,643	134,455
Stock-based compensation	84,800	72,211
Provision for doubtful accounts	1,517	889
Excess tax benefits from stock-based compensation	(23,958)	(18,152)
Provision for deferred income taxes	10,622	0
Amortization of debt discount and issuance costs	10,939	0
Loss (gain) from disposal of property and equipment	325	(15)
Loss on investments	393	0
Change in fair value of contingent consideration	300	0
Gain from divestiture of a business	0	(1,188)
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable	(50,213)	(51,321)
Prepaid expenses and other current assets	(22,346)	(9,266)
Accounts payable and accrued expenses	36,876	43,730
Deferred revenue	7,688	10,991
Other current liabilities	(703)	32
Other non-current assets and liabilities	(10,195)	(3,328)
Net cash provided by operating activities	462,529	392,176
Cash flows from investing activities:
Cash paid for acquired businesses, net of cash acquired	(386,532)	(27,420)
Purchases of property and equipment	(142,466)	(142,567)
Capitalization of internal-use software development costs	(83,841)	(55,171)
Purchases of short- and long-term marketable securities	(1,068,198)	(403,556)
Proceeds from sales of short- and long-term marketable securities	354,313	79,207
Proceeds from maturities of short- and long-term marketable securities	277,109	265,495
Proceeds from the sale of property and equipment	802	761
Other non-current assets and liabilities	6,420	(3,320)
Net cash used in investing activities	(1,042,393)	(286,571)
Cash flows from financing activities:
Proceeds from the issuance of convertible senior notes, net of issuance costs	678,735	0
Proceeds from the issuance of warrants related to convertible senior notes	77,970	0
Purchase of note hedge related to convertible senior notes	(101,292)	0
Repayment of acquired debt and capital leases	(17,862)	0
Payment of contingent consideration related to acquired business	1,575	0
Proceeds related to the issuance of common stock under stock plans	75,361	54,418
Excess tax benefits from stock-based compensation	23,958	18,152
Employee taxes paid related to net share settlement of stock-based awards	(43,205)	(28,559)
Repurchases of common stock	(226,513)	(112,408)
Net cash provided by (used in) financing activities	465,577	(68,397)
Effects of exchange rate changes on cash and cash equivalents	(5,265)	(4,182)
Net (decrease) increase in cash and cash equivalents	(119,552)	33,026
Cash and cash equivalents at beginning of period	333,891	201,989
Cash and cash equivalents at end of period	214,339	235,015
Supplemental disclosure of cash flow information:
Cash paid for income taxes	117,723	44,191
Non-cash financing and investing activities:
Purchases of property and equipment and capitalization of internal-use software development costs included in accounts payable and accrued expenses	40,131	12,630
Capitalization of stock-based compensation	11,577	9,252
Convertible note receivable received for divestiture of a business	$ 0	$ 18,882

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Accounts receivable reserve (in dollars)	$ 5,866	$ 3,703
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares designated as Series A Junior Participating Preferred Stock	700,000	700,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	700,000,000	700,000,000
Common stock, shares issued	182,119,856	178,580,696
Common stock, shares outstanding	178,194,979	178,580,696
Treasury stock, shares	3,924,877	0

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Net Income per Share

9 Months Ended

Sep. 30, 2014

Earnings Per Share Reconciliation [Abstract]

Net Income per Share

Net Income per Share

Basic net income per share is computed using the weighted average number of common shares outstanding during the applicable period. Diluted net income per share is computed using the weighted average number of common shares outstanding during the period, plus the dilutive effect of potential common stock. Potential common stock consists of shares issuable pursuant to stock options, restricted stock units (“RSUs”), deferred stock units, convertible senior notes and warrants issued by the Company. The dilutive effect of outstanding awards and convertible securities is reflected in diluted earnings per share by application of the treasury stock method.

The following table sets forth the components used in the computation of basic and diluted net income per share for the three and nine months ended September 30, 2014 and 2013 (in thousands, except per share data):

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2014		2013		2014		2013
Numerator:
Net income	$	91,155	$	79,756	$	236,841	$	213,138
Denominator:
Shares used for basic net income per share	178,186		178,235		178,324		178,008
Effect of dilutive securities:
Stock options	1,146		1,580		1,257		1,693
RSUs and deferred stock units	1,623		2,107		1,697		1,922
Convertible senior notes	—		—		—		—
Warrants related to issuance of convertible senior notes	—		—		—		—
Shares used for diluted net income per share	180,955		181,922		181,278		181,623
Basic net income per share	$	0.51	$	0.45	$	1.33	$	1.20
Diluted net income per share	$	0.50	$	0.44	$	1.31	$	1.17

For the three and nine months ended September 30, 2014 and 2013, certain potential outstanding shares from stock options, service-based RSUs, convertible notes and warrants were excluded from the computation of diluted net income per share because the effect of including these items would be anti-dilutive. Additionally, certain performance-based RSUs were excluded from the computation of diluted net income per share because the underlying performance conditions for such RSUs had not been met as of these dates. The number of potentially outstanding shares excluded from the computation of diluted net income per share for the three and nine months ended September 30, 2014 and 2013 are as follows (in thousands):

	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
	2014	2013	2014	2013
Stock options	261	1,308	462	1,782
Service-based RSUs	797	37	773	234
Performance-based RSUs	565	1,140	572	1,145
Convertible senior notes	—	—	—	—
Warrants related to issuance of convertible senior notes	—	—	—	—

The calculation of assumed proceeds used to determine the diluted weighted average shares outstanding under the treasury stock method in the periods presented was adjusted by tax windfalls and shortfalls associated with all of the Company’s outstanding stock awards. Such windfalls and shortfalls are computed by comparing the tax deductible amount of outstanding stock awards to their grant date fair values and multiplying the results by the applicable statutory tax rate. A positive result creates a windfall, which increases the assumed proceeds, and a negative result creates a shortfall, which reduces the assumed proceeds.

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Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Nov. 05, 2014
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3
Entity Registrant Name	AKAMAI TECHNOLOGIES INC
Entity Central Index Key	0001086222
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		177,993,964

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2014

Marketable Securities [Abstract]

Schedule of Marketable Securities

The following is a summary of available-for-sale marketable securities held as of September 30, 2014 and December 31, 2013 (in thousands):

			Gross Unrealized							Classification on Balance Sheet
	Amortized Cost		Gains		Losses			Aggregate Fair Value		Short-Term Marketable Securities		Long-Term Marketable Securities
As of September 30, 2014
Certificates of deposit	$	52	$	—	$	—		$	52	$	—	$	52
Commercial paper	22,487		1		(2		)	22,486		22,486		—
Corporate bonds	1,032,801		870		(1,646		)	1,032,025		399,682		632,343
U.S. government agency obligations	293,146		37		(326		)	292,857		74,405		218,452
	$	1,348,486	$	908	$	(1,974	)	$	1,347,420	$	496,573	$	850,847
As of December 31, 2013
Certificates of deposit	$	222	$	—	$	—		$	222	$	173	$	49
Corporate bonds	736,945		1,197		(281		)	737,861		278,318		459,543
U.S. government agency obligations	174,982		51		(85		)	174,948		61,514		113,434
	$	912,149	$	1,248	$	(366	)	$	913,031	$	340,005	$	573,026

Schedule of Fair Value Measurement

The following table details the fair value measurements within the fair value hierarchy of the Company’s financial assets and liabilities at September 30, 2014 and December 31, 2013 (in thousands):

	Total Fair Value			Fair Value Measurements at Reporting Date Using
				Level 1		Level 2		Level 3
As of September 30, 2014
Cash Equivalents and Marketable Securities:
Money market funds	$	2,936		$	2,936	$	—	$	—
Certificates of deposit	52			52		—		—
Commercial paper	22,486			—		22,486		—
Corporate bonds	1,032,025			—		1,032,025		—
U.S. government agency obligations	292,857			—		292,857		—
	$	1,350,356		$	2,988	$	1,347,368	$	—
Other Liabilities:
Contingent consideration obligation related to Velocius acquisition	$	(900	)	$	—	$	—	$	(900	)
As of December 31, 2013
Cash Equivalents and Marketable Securities:
Money market funds	$	40,482		$	40,482	$	—	$	—
Certificates of deposit	3,418			3,418		—		—
Commercial paper	29,999			—		29,999		—
Corporate bonds	737,861			—		737,861		—
U.S. government agency obligations	174,948			—		174,948		—
	$	986,708		$	43,900	$	942,808	$	—
Other Assets:
Note receivable	$	22,879		$	—	$	—	22,879
Other Liabilities:
Contingent consideration obligation related to Velocius acquisition	$	(2,600	)	$	—	$	—	$	(2,600	)

Schedule of Contractual Maturities of Marketable Securities and Other Investment Related Assets

Contractual maturities of the Company’s available-for-sale marketable securities held at September 30, 2014 and December 31, 2013 were as follows (in thousands):

	September 30, 2014		December 31, 2013
Due in 1 year or less	$	496,573	$	340,005
Due after 1 year through 5 years	850,847		573,026
	$	1,347,420	$	913,031

Schedule of Fair Value Assets and Liabilities Unobservable Input Reconciliation

The following table reflects the activity for the Company’s major classes of assets and liabilities measured at fair value using Level 3 inputs for the nine months ended September 30, 2014 (in thousands):

	Other Assets: Note Receivable			Other Liabilities: Contingent Consideration Obligation
Balance as of January 1, 2014	$	22,879		$	(2,600	)
Unrealized gain on convertible note receivable included in other comprehensive (loss) income	2,121			—
Amendment of the convertible note receivable for preferred stock of the issuer and cash	(25,000		)	—
Fair value adjustment to contingent consideration included in general and administrative expense	—			(300		)
Achievement of first milestone related to Velocius contingent consideration	—			2,000
Balance as of September 30, 2014	$	—		$	(900	)

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Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Revenue	$ 498,042	$ 395,790	$ 1,427,579	$ 1,141,942
Costs and operating expenses:
Cost of revenue	158,812	132,039	447,742	377,136
Research and development	32,583	24,857	92,869	67,359
Sales and marketing	96,215	67,811	268,742	198,326
General and administrative	81,905	66,634	239,946	183,365
Amortization of acquired intangible assets	8,403	4,859	23,654	16,653
Restructuring (benefits) charges	(115)	69	1,189	891
Total costs and operating expenses	377,803	296,269	1,074,142	843,730
Income from operations	120,239	99,521	353,437	298,212
Interest income	2,010	1,458	5,389	4,543
Interest expense	(4,482)	0	(10,939)	0
Other expense, net	(188)	(305)	(1,968)	(96)
Income before provision for income taxes	117,579	100,674	345,919	302,659
Provision for income taxes	26,424	20,918	109,078	89,521
Net income	$ 91,155	$ 79,756	$ 236,841	$ 213,138
Net income per share:
Basic (in dollars per share)	$ 0.51	$ 0.45	$ 1.33	$ 1.20
Diluted (in dollars per share)	$ 0.50	$ 0.44	$ 1.31	$ 1.17
Shares used in per share calculations:
Basic (in shares)	178,186	178,235	178,324	178,008
Diluted (in shares)	180,955	181,922	181,278	181,623

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Business Acquisitions

9 Months Ended

Sep. 30, 2014

Business Combinations [Abstract]

Business Acquisitions

Business Acquisitions

Prolexic Acquisition

On February 18, 2014, the Company acquired all of the outstanding capital stock of Prolexic Technologies, Inc. ("Prolexic") in exchange for $392.1 million in cash and the assumption of unvested stock options. The goal of acquiring Prolexic was to provide customers with a comprehensive portfolio of security solutions designed to defend an enterprise’s Web and IP infrastructure against application-layer, network-layer and data center attacks delivered via the Internet. The consolidated financial statements include the operating results of Prolexic from the date of acquisition. The revenue and earnings included in the Company's consolidated financial statements since the acquisition date are not material. Pro forma results of the operations have not been presented because the effects are not material to the consolidated financial statements. Acquisition-related costs were $4.1 million for the nine months ended September 30, 2014.

The allocation of the purchase price has been finalized, with the exception of evaluating certain accrued expenses, property and equipment and tax-related assets and liabilities. The Company is in the process of gathering the facts and circumstances existing as of the acquisition date in order to finalize the valuation of these items. The Company has made immaterial adjustments to the allocation of the purchase price since the acquisition date.

The following table presents the preliminary allocation of the purchase price for Prolexic (in thousands):

Total purchase consideration	$	392,104
Allocation of the purchase consideration:
Cash	$	33,072
Accounts receivable	11,208
Property and equipment	12,225
Identifiable intangible assets	87,040
Goodwill	291,679
Deferred tax assets	16,000
Other current and long-term assets	5,850
Total assets acquired	457,074
Other current liabilities	(6,019		)
Current deferred revenue	(5,812		)
Deferred tax liabilities	(33,723		)
Debt, capital leases and other long-term liabilities	(19,416		)
Total liabilities assumed	(64,970		)
Net assets acquired	$	392,104

The value of the goodwill can be attributed to a number of business factors, including a trained technical and sales workforce and the fair value of expected cost synergies to be realized. The total amount of goodwill related to the acquisition of Prolexic expected to be deducted for tax purposes is $62.4 million.

The following were the identified intangible assets acquired and their respective weighted average useful lives (in thousands, except for years):

	Gross Carrying Amount		Weighted Average Useful Life (in years)
Completed technologies	$	26,800	6.9
Customer-related intangible assets	58,500		10.4
Non-compete agreements	940		3.0
Trademark	800		4.9
Total	$	87,040

Velocius Acquisition

On November 8, 2013, the Company acquired all the outstanding capital stock of Velocius in exchange for $4.3 million in cash. In addition, the Company recorded a liability of $2.6 million for a contingent consideration related to expected achievement of post-closing milestones. The maximum potential payout of the contingent consideration is $3.0 million. As of September 30, 2014, the first of two milestones was achieved and the remaining contingent consideration has a fair value of $0.9 million.

The Company acquired Velocius with a goal of complementing its hybrid cloud optimization strategy for optimizing IP application traffic across the Internet for remote and branch-end users. The Company allocated $5.4 million of the cost of the acquisition to goodwill and $2.5 million to acquired intangible assets. The allocation of the purchase price was finalized in the first quarter of 2014. The total weighted average useful life of the intangible assets acquired from Velocius is 7.9 years. The value of the goodwill from the acquisition can be attributed to a number of business factors, including a trained technical workforce and cost synergies. The total amount of goodwill related to the acquisition of Velocius expected to be deducted for tax purposes is $0.3 million.

Strategic Network Transaction

On November 30, 2012, the Company entered into a strategic alliance with AT&T Services, Inc. ("AT&T"). Under the agreement, AT&T became a reseller of the Company's services and the Company acquired certain assets and contracted to purchase bandwidth, co-location and related services from AT&T. The total consideration was $55.0 million, of which $27.5 million was paid during the third quarter of 2013 and $27.5 million was paid during the first quarter of 2014.

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Goodwill and Acquired Intangible Assets

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Acquired Intangible Assets

Goodwill and Acquired Intangible Assets

The change in the carrying amount of goodwill for the nine months ended September 30, 2014 was as follows (in thousands):

Balance as of January 1, 2014	$	757,368
Acquisition of Prolexic Technologies, Inc.	291,679
Balance as of September 30, 2014	$	1,049,047

The Company tests goodwill for impairment at least annually. Through the date the consolidated financial statements were issued, no triggering events had occurred that would indicate a potential impairment exists.

Acquired intangible assets that are subject to amortization consist of the following as of September 30, 2014 and December 31, 2013 (in thousands):

	September 30, 2014							December 31, 2013
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Completed technology	$	92,431	$	(45,969	)	$	46,462	$	65,631	$	(35,476	)	$	30,155
Customer-related intangible assets	173,600		(87,009		)	86,591		115,100		(75,563		)	39,537
Non-compete agreements	8,890		(3,804		)	5,086		7,950		(2,623		)	5,327
Trademarks and trade names	4,200		(1,524		)	2,676		3,400		(990		)	2,410
Acquired license rights	490		(490		)	—		490		(490		)	—
Total	$	279,611	$	(138,796	)	$	140,815	$	192,571	$	(115,142	)	$	77,429

Aggregate expense related to amortization of acquired intangible assets for the three and nine months ended September 30, 2014 was $8.4 million and $23.7 million, respectively. Aggregate expense related to amortization of acquired intangible assets for the three and nine months ended September 30, 2013 was $4.9 million and $16.7 million, respectively. Based on the Company’s acquired intangible assets as of September 30, 2014, aggregate expense related to amortization of acquired intangible assets is expected to be $8.4 million for the remainder of 2014, and $26.8 million, $25.2 million, $23.1 million and $16.2 million for 2015, 2016, 2017 and 2018, respectively.

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Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2014

Stockholders' Equity Note [Abstract]

Schedule of Stock-Based Compensation Expense

The following table summarizes stock-based compensation included in the Company’s consolidated statements of operations for the three and nine months ended September 30, 2014 and 2013 (in thousands):

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2014			2013			2014			2013
Cost of revenue	$	3,030		$	2,885		$	8,901		$	8,230
Research and development	4,979			4,583			14,517			12,819
Sales and marketing	12,110			10,048			35,438			29,278
General and administrative	7,889			6,963			25,944			21,884
Total stock-based compensation	28,008			24,479			84,800			72,211
Provision for income taxes	(8,472		)	(8,272		)	(26,852		)	(24,581		)
Total stock-based compensation, net of income taxes	$	19,536		$	16,207		$	57,948		$	47,630

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Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2014

Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]

Schedule of Accounts Receivable

Net accounts receivable consisted of the following as of September 30, 2014 and December 31, 2013 (in thousands):

	September 30, 2014			December 31, 2013
Trade accounts receivable	$	235,166		$	175,391
Unbilled accounts receivable	97,447			100,300
Gross accounts receivable	332,613			275,691
Allowance for doubtful accounts	(1,032		)	(708		)
Reserve for cash-basis customers	(4,834		)	(2,995		)
Total accounts receivable reserves	(5,866		)	(3,703		)
Accounts receivable, net	$	326,747		$	271,988

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Accumulated Other Comprehensive Loss

9 Months Ended

Sep. 30, 2014

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive (Income) Loss

Accumulated Other Comprehensive Loss

The following table summarizes the changes in accumulated other comprehensive loss, which is reported as a component of stockholders' equity, for the nine months ended September 30, 2014 (in thousands):

	Foreign Currency Translation Adjustments			Net Unrealized Gain on Investments		Total
Balance as of January 1, 2014	$	(6,715	)	$	4,624	$	(2,091	)
Other comprehensive (loss) income	(7,937		)	483		(7,454		)
Balance as of September 30, 2014	$	(14,652	)	$	5,107	$	(9,545	)

The tax effect on accumulated unrealized gain on investments was insignificant as of September 30, 2014 and December 31, 2013. Amounts reclassified from accumulated other comprehensive loss to net income were insignificant for the nine months ended September 30, 2014.

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Convertible Senior Notes

9 Months Ended

Sep. 30, 2014

Debt Disclosure [Abstract]

Convertible Senior Notes

Convertible Senior Notes

In February 2014, the Company issued $690.0 million in par value of convertible senior notes due 2019 (the "Notes"). The Notes are senior unsecured obligations of the Company, do not bear regular interest and mature on February 15, 2019, unless repurchased or converted prior to maturity.

At their option, holders may convert their Notes prior to the close of business on the business day immediately preceding August 15, 2018 only under the following circumstances:

• during any calendar quarter commencing after the calendar quarter ended June 30, 2014 (and only during such calendar quarter), if the last reported sale price of the Company's common stock for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day;

• during the five business day period after any five consecutive trading day period in which the trading price per $1,000 principal amount of Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company's common stock and the conversion rate on each such trading day; or

• upon the occurrence of specified corporate events.

On or after August 15, 2018, holders may convert all or any portion of their Notes at any time prior to the close of business on the second scheduled trading day immediately preceding the maturity date, regardless of the foregoing circumstances.

Upon conversion, the Company, at its election, may pay or deliver to holders cash, shares of the Company's common stock or a combination of cash and shares of the Company's common stock. The initial conversion rate is 11.1651 shares of the Company's common stock per $1,000 principal amount, which is equivalent to an initial conversion price of approximately $89.56 per share, subject to adjustments in certain events, and represents a potential conversion into 7.7 million shares.

In accounting for the issuance of the Notes, the Company separated the Notes into liability and equity components. The carrying cost of the liability component was calculated by measuring the fair value of a similar debt obligation that does not have an associated convertible feature. The carrying amount of the equity component representing the conversion option was determined by deducting the fair value of the liability component from the par value of the Notes. The difference between the principal amount of the Notes and the proceeds allocated to the liability component (“debt discount”), is amortized to interest expense using the effective interest method over the term of the Notes. The equity component is recorded in additional paid-in capital in the consolidated balance sheet and will not be remeasured as long as it continues to meet the conditions for equity classification.

In accounting for the transaction costs related to the issuance of the Notes, the Company allocated the total transaction costs incurred to the liability and equity components based on their relative values. Transaction costs attributable to the liability component are being amortized to interest expense over the term of the Notes, and transaction costs attributable to the equity component are netted with the equity component of the Notes in stockholders’ equity.

The Notes consist of the following components (in thousands):

	September 30, 2014
Liability component:
Principal	$	690,000
Less: debt discount, net of amortization	(89,902		)
Net carrying amount	$	600,098
Equity component:	$	101,276

The estimated fair value of the Company's Notes at September 30, 2014 was $691.7 million. The fair value was determined based on data points other than quoted prices that are observable, either directly or indirectly, and has been classified as Level 2 within the fair value hierarchy. Based on the closing price of the Company's common stock of $59.80 on September 30, 2014, the value of the Notes if converted to common stock was less than the principal amount of $690.0 million.

The Company used $62.0 million of the proceeds from the offering to repurchase shares of its common stock, concurrently with the issuance of the Notes. The repurchase was made in accordance with the share repurchase program previously approved by the Board of Directors (Note 7). Additionally, $23.3 million of the proceeds was used for the net cost of convertible note hedge and warrant transactions. The Company intends to use the remaining net proceeds for working capital and other general corporate purposes, as well as for potential acquisitions and strategic transactions.

Note Hedge

To minimize the impact of potential dilution upon conversion of the Notes, the Company entered into convertible note hedge transactions with respect to its common stock. The Company paid $101.3 million for the note hedge transactions. The note hedge transactions cover approximately 7.7 million shares of the Company’s common stock at a strike price that corresponds to the initial conversion price of the Notes, also subject to adjustment, and are exercisable upon conversion of the Notes.  The note hedge transactions are intended to reduce dilution in the event of conversion of the Notes.

Warrants

Separately, the Company entered into warrant transactions, whereby the Company sold warrants to acquire, subject to anti-dilution adjustments, up to 7.7 million shares of the Company’s common stock at a strike price of approximately $104.49 per share. The Company received aggregate proceeds of $78.0 million from the sale of the warrants.  The convertible note hedge and warrant transactions will generally have the effect of increasing the conversion price of the Notes to approximately $104.49 per share.

Interest Expense

The Notes do not bear regular interest, but have an effective interest rate of 3.2% attributable to the conversion feature. The following table sets forth total interest expense included in the statement of operations related to the Notes (in thousands):

	For the Three Months Ended September 30,			For the Nine Months Ended September 30,
	2014			2014
Amortization of debt discount	$	449		$	1,079
Amortization of debt issuance costs	4,712			11,373
Capitalization of interest expense	(679		)	(1,513		)
Total interest expense	$	4,482		$	10,939

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Stockholders' Equity

9 Months Ended

Sep. 30, 2014

Stockholders' Equity Note [Abstract]

Stockholders' Equity

Stockholders’ Equity

Share Repurchase Program

In October 2013, the Board of Directors authorized a $750.0 million share repurchase program, effective from October 16, 2013 through December 31, 2016. During the nine months ended September 30, 2014, the Company repurchased 3.9 million shares of its common stock for $226.5 million.

Stock-Based Compensation

The following table summarizes stock-based compensation included in the Company’s consolidated statements of operations for the three and nine months ended September 30, 2014 and 2013 (in thousands):

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2014			2013			2014			2013
Cost of revenue	$	3,030		$	2,885		$	8,901		$	8,230
Research and development	4,979			4,583			14,517			12,819
Sales and marketing	12,110			10,048			35,438			29,278
General and administrative	7,889			6,963			25,944			21,884
Total stock-based compensation	28,008			24,479			84,800			72,211
Provision for income taxes	(8,472		)	(8,272		)	(26,852		)	(24,581		)
Total stock-based compensation, net of income taxes	$	19,536		$	16,207		$	57,948		$	47,630

In addition to the amounts of stock-based compensation reported in the table above, the Company’s consolidated statements of operations for the three and nine months ended September 30, 2014, include stock-based compensation reflected as a component of amortization of capitalized internal-use software of $3.6 million and $7.5 million, respectively, before income taxes. For the three and nine months ended September 30, 2013, the Company's consolidated statements of operations include stock-based compensation reflected as a component of amortization of capitalized internal-use software of $2.2 million and $6.1 million, respectively, before income taxes.

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Income Taxes

9 Months Ended

Sep. 30, 2014

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company’s effective income tax rate was 31.5% and 29.6% for the nine months ended September 30, 2014 and 2013, respectively. The effective income tax rate is based upon estimated income for the year, the estimated composition of the income in different jurisdictions and discrete adjustments, if any, in the applicable quarterly periods, including retroactive changes in tax legislation, settlements of tax audits or assessments, the resolution or identification of tax position uncertainties and acquisitions of other companies.

During the third quarter of 2014, the Company recognized a state tax benefit related to its software development activities, which resulted in a net tax benefit of $13.3 million for the period from January 1, 2010 to September 30, 2014.  During the third quarter of 2013, the Company completed an analysis of its domestic production activities deduction, which resulted in a federal tax benefit of $16.5 million for the period from January 1, 2010 to September 30, 2013.  The Company also recorded a discrete item during the nine months ended September 30, 2013 related to the reinstatement of the federal research and development credit at the beginning of 2013, which included a one-time retroactive impact for fiscal year 2012.

For the nine months ended September 30, 2014, the effective income tax rate was lower than the federal statutory tax rate due to the benefit from the state software development activities and income from foreign jurisdictions that is taxed at lower rates compared to the statutory tax rates in the United States; partially offset by the effects of accounting for stock-based compensation in accordance with the authoritative guidance for share-based payments and state income taxes.  For the nine months ended September 30, 2013, the effective income tax rate was lower than the federal statutory tax rate mainly due to the domestic production activities deduction, the composition of income in foreign jurisdictions with lower rates, as well as the reinstatement of the federal research and development credit at the beginning of 2013, which included a one-time retroactive impact for fiscal year 2012.

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Goodwill and Acquired Intangible Assets - Schedule of Acquired Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 279,611	$ 192,571
Accumulated Amortization	(138,796)	(115,142)
Net Carrying Amount	140,815	77,429
Completed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	92,431	65,631
Accumulated Amortization	(45,969)	(35,476)
Net Carrying Amount	46,462	30,155
Customer-related intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	173,600	115,100
Accumulated Amortization	(87,009)	(75,563)
Net Carrying Amount	86,591	39,537
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,890	7,950
Accumulated Amortization	(3,804)	(2,623)
Net Carrying Amount	5,086	5,327
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,200	3,400
Accumulated Amortization	(1,524)	(990)
Net Carrying Amount	2,676	2,410
Acquired license rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	490	490
Accumulated Amortization	(490)	(490)
Net Carrying Amount	$ 0	$ 0

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Business Acquisitions (Tables)

9 Months Ended

Sep. 30, 2014

Business Acquisition [Line Items]

Schedule of Acquired Intangible Assets

Acquired intangible assets that are subject to amortization consist of the following as of September 30, 2014 and December 31, 2013 (in thousands):

	September 30, 2014							December 31, 2013
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Completed technology	$	92,431	$	(45,969	)	$	46,462	$	65,631	$	(35,476	)	$	30,155
Customer-related intangible assets	173,600		(87,009		)	86,591		115,100		(75,563		)	39,537
Non-compete agreements	8,890		(3,804		)	5,086		7,950		(2,623		)	5,327
Trademarks and trade names	4,200		(1,524		)	2,676		3,400		(990		)	2,410
Acquired license rights	490		(490		)	—		490		(490		)	—
Total	$	279,611	$	(138,796	)	$	140,815	$	192,571	$	(115,142	)	$	77,429

Prolexic Technologies, Inc.

Business Acquisition [Line Items]

Schedule of Preliminary Allocation of the Purchase Price

The following table presents the preliminary allocation of the purchase price for Prolexic (in thousands):

Total purchase consideration	$	392,104
Allocation of the purchase consideration:
Cash	$	33,072
Accounts receivable	11,208
Property and equipment	12,225
Identifiable intangible assets	87,040
Goodwill	291,679
Deferred tax assets	16,000
Other current and long-term assets	5,850
Total assets acquired	457,074
Other current liabilities	(6,019		)
Current deferred revenue	(5,812		)
Deferred tax liabilities	(33,723		)
Debt, capital leases and other long-term liabilities	(19,416		)
Total liabilities assumed	(64,970		)
Net assets acquired	$	392,104

Schedule of Acquired Intangible Assets

The following were the identified intangible assets acquired and their respective weighted average useful lives (in thousands, except for years):

	Gross Carrying Amount		Weighted Average Useful Life (in years)
Completed technologies	$	26,800	6.9
Customer-related intangible assets	58,500		10.4
Non-compete agreements	940		3.0
Trademark	800		4.9
Total	$	87,040

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Nature of Business and Basis of Presentation - Narrative (Details)	9 Months Ended
	Sep. 30, 2014 segment server country network
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of servers (more than 160,000)	160,000
Number of networks (over 1,200)	1,200
Number of countries servers are in (over 90)	90
Number of industry segments	1

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Convertible Senior Notes - Schedule of Interest Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Debt Disclosure [Abstract]
Amortization of debt discount	$ 449		$ 1,079
Amortization of debt issuance costs	4,712		11,373
Capitalization of interest expense	(679)		(1,513)
Interest expense	$ 4,482	$ 0	$ 10,939	$ 0

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 91,155	$ 79,756	$ 236,841	$ 213,138
Other comprehensive (loss) income:
Foreign currency translation adjustments	(10,763)	2,950	(7,937)	(4,810)
Change in unrealized (loss) gain on investments, net of income tax benefit (provision) of $715, $(1,532), $324, and $(629) for the three and nine months ended September 30, 2014 and 2013, respectively	(1,279)	2,571	483	1,016
Other comprehensive (loss) income	(12,042)	5,521	(7,454)	(3,794)
Comprehensive income	$ 79,113	$ 85,277	$ 229,387	$ 209,344

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Accounts Receivable

9 Months Ended

Sep. 30, 2014

Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]

Accounts Receivable

Accounts Receivable

Net accounts receivable consisted of the following as of September 30, 2014 and December 31, 2013 (in thousands):

	September 30, 2014			December 31, 2013
Trade accounts receivable	$	235,166		$	175,391
Unbilled accounts receivable	97,447			100,300
Gross accounts receivable	332,613			275,691
Allowance for doubtful accounts	(1,032		)	(708		)
Reserve for cash-basis customers	(4,834		)	(2,995		)
Total accounts receivable reserves	(5,866		)	(3,703		)
Accounts receivable, net	$	326,747		$	271,988

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Fair Value Measurements - Narrative (Details) (USD $)	3 Months Ended	9 Months Ended
	Jun. 30, 2014	Sep. 30, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Convertible note receivable converted to preferred stock amount	$ 12,500,000
Proceeds from Conversion of Note Receivable		12,500,000
Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Face value of note receivable		$ 25,000,000

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Business Acquisitions - Schedule of Acquired Intangible Assets (Details) (Prolexic Technologies, Inc., USD $) In Thousands, unless otherwise specified	0 Months Ended
	Feb. 18, 2014
Business Acquisition [Line Items]
Gross Carrying Amount	$ 87,040
Completed technology
Business Acquisition [Line Items]
Gross Carrying Amount	26,800
Weighted Average Useful Life (in years)	6 years 10 months 24 days
Customer-related intangible assets
Business Acquisition [Line Items]
Gross Carrying Amount	58,500
Weighted Average Useful Life (in years)	10 years 4 months 18 days
Non-compete agreements
Business Acquisition [Line Items]
Gross Carrying Amount	940
Weighted Average Useful Life (in years)	3 years
Trademarks and trade names
Business Acquisition [Line Items]
Gross Carrying Amount	$ 800
Weighted Average Useful Life (in years)	4 years 10 months 24 days

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Goodwill and Acquired Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The change in the carrying amount of goodwill for the nine months ended September 30, 2014 was as follows (in thousands):

Balance as of January 1, 2014	$	757,368
Acquisition of Prolexic Technologies, Inc.	291,679
Balance as of September 30, 2014	$	1,049,047

Schedule of Acquired Intangible Assets

Acquired intangible assets that are subject to amortization consist of the following as of September 30, 2014 and December 31, 2013 (in thousands):

	September 30, 2014							December 31, 2013
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Completed technology	$	92,431	$	(45,969	)	$	46,462	$	65,631	$	(35,476	)	$	30,155
Customer-related intangible assets	173,600		(87,009		)	86,591		115,100		(75,563		)	39,537
Non-compete agreements	8,890		(3,804		)	5,086		7,950		(2,623		)	5,327
Trademarks and trade names	4,200		(1,524		)	2,676		3,400		(990		)	2,410
Acquired license rights	490		(490		)	—		490		(490		)	—
Total	$	279,611	$	(138,796	)	$	140,815	$	192,571	$	(115,142	)	$	77,429