ServiceNow (NOW) 10-Q 6 May 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information shares in Millions	3 Months Ended
	Mar. 31, 2016shares
Document and Entity Information [Abstract]
Entity Registrant Name	SERVICENOW, INC.
Trading Symbol	NOW
Entity Central Index Key	1,373,715
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Amendment Flag	false
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	162.8

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 453,450	$ 412,305
Short-term investments	447,423	388,945
Accounts receivable, net	190,263	203,333
Current portion of deferred commissions	55,588	51,976
Prepaid expenses and other current assets	46,534	29,076
Total current assets	1,193,258	1,085,635
Deferred commissions, less current portion	36,417	33,016
Long-term investments	361,831	422,667
Property and equipment, net	154,244	144,714
Intangible assets, net	46,246	43,005
Goodwill	57,364	55,669
Other assets	24,683	22,346
Total assets	1,874,043	1,807,052
Current liabilities:
Accounts payable	39,621	37,369
Accrued expenses and other current liabilities	336,613	101,264
Current portion of deferred revenue	672,049	593,003
Total current liabilities	1,048,283	731,636
Deferred revenue, less current portion	10,468	10,751
Convertible senior notes, net	482,643	474,534
Other long-term liabilities	30,293	23,317
Total liabilities	1,571,687	1,240,238
Stockholders’ equity:
Common stock	162	160
Additional paid-in capital	1,207,104	1,140,545
Accumulated other comprehensive loss	(14,569)	(16,882)
Accumulated deficit	(890,341)	(557,009)
Total stockholders’ equity	302,356	566,814
Total liabilities and stockholders’ equity	$ 1,874,043	$ 1,807,052

Condensed Consolidated Statemen

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Revenues:
Subscription		$ 267,422	$ 179,907
Professional services and other		38,457	32,057
Total revenues		305,879	211,964
Cost of revenues(1):
Subscription	[1]	52,781	42,444
Professional services and other	[1]	41,479	34,455
Total cost of revenues	[1]	94,260	76,899
Gross profit		211,619	135,065
Operating expenses(1):
Sales and marketing	[1]	158,610	110,057
Research and development	[1]	65,924	49,848
General and administrative	[1]	41,237	29,392
Legal settlement		270,000	0
Total operating expenses	[1]	535,771	189,297
Loss from operations		(324,152)	(54,232)
Interest expense		(8,109)	(7,578)
Interest and other income (expense), net		702	4,704
Loss before provision for income taxes		(331,559)	(57,106)
Provision for income taxes		1,773	987
Net loss		$ (333,332)	$ (58,093)
Earnings Per Share, Basic and Diluted (in USD per share)		$ (2.06)	$ (0.38)
Weighted-average shares used to compute net loss per share - basic and diluted		162,067,108	151,601,880
Other comprehensive gain (loss):
Foreign currency translation adjustments		$ 680	$ (4,059)
Unrealized gain on investments, net of tax		1,633	494
Other comprehensive gain (loss), net of tax		2,313	(3,565)
Comprehensive loss		$ (331,019)	$ (61,658)
[1]	Includes stock-based compensation as follows: Three Months Ended March 31, 2016 2015Cost of revenues: Subscription$6,607 $5,165Professional services and other6,759 5,213Sales and marketing30,998 22,574Research and development20,533 15,638General and administrative10,411 9,484

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Stock-based compensation	$ 75,308	$ 58,074
Cost of revenues - subscription
Stock-based compensation	6,607	5,165
Cost of revenues - professional services and other
Stock-based compensation	6,759	5,213
Sales and Marketing
Stock-based compensation	30,998	22,574
Research And Development
Stock-based compensation	20,533	15,638
General and Administrative Expense
Stock-based compensation	$ 10,411	$ 9,484

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net loss	$ (333,332)	$ (58,093)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	17,452	13,824
Amortization of premiums on investments	1,490	1,830
Amortization of deferred commissions	18,033	15,597
Amortization of debt discount and issuance costs	8,109	7,578
Stock-based compensation	75,308	58,074
Other	(330)	(1,943)
Changes in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable	15,811	10,436
Deferred commissions	(23,971)	(15,400)
Prepaid expenses and other assets	(19,808)	(18,887)
Accounts payable	3,387	6
Deferred revenue	70,803	55,861
Accrued expenses and other liabilities	245,735	(1,517)
Net cash provided by operating activities	78,687	67,366
Cash flows from investing activities:
Purchases of property and equipment	(29,077)	(26,699)
Business combination, net of cash acquired	(500)	(1,100)
Purchase of other intangibles	(5,750)	0
Purchases of investments	(180,365)	(132,364)
Sales of investments	92,885	49,412
Maturities of investments	91,858	76,386
Restricted cash	(457)	31
Net cash used in investing activities	(31,406)	(34,334)
Cash flows from financing activities:
Proceeds from employee stock plans	19,873	30,474
Taxes paid related to net share settlement of equity awards	(28,453)	(735)
Payments on financing obligation	(110)	0
Net cash (used in) provided by financing activities	(8,690)	29,739
Foreign currency effect on cash and cash equivalents	2,554	(7,245)
Net increase in cash and cash equivalents	41,145	55,526
Cash and cash equivalents at beginning of period	412,305	252,455
Cash and cash equivalents at end of period	453,450	307,981
Supplemental disclosures of non-cash investing activities:
Property and equipment included in accounts payable and accrued expenses	$ 8,393	$ 8,475

Description of Business

Description of Business	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of the Business ServiceNow is a leading provider of enterprise cloud computing solutions that define, structure, manage and automate services across the global enterprise. Our mission is to help the modern enterprise operate faster and be more scalable by applying a service-oriented lens to the activities, tasks and processes that comprise day-to-day work life.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The accompanying unaudited condensed consolidated financial statements and condensed footnotes have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring items) considered necessary for fair statement of results for the interim periods presented have been included. The results of operations for the three months ended March 31, 2016 are not necessarily indicative of the results to be expected for the year ended December 31, 2016 or for other interim periods or for future years. The condensed consolidated balance sheet as of December 31, 2015 is derived from audited financial statements as of that date, however, it does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in the Company’s Form 10-K for the year ended December 31, 2015 , which was filed with the Securities and Exchange Commission on February 25, 2016. Principles of Consolidation The condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles, or GAAP, and include our accounts and the accounts of our wholly-owned subsidiaries. All significant intercompany transactions and balances have been eliminated upon consolidation. Prior Period Reclassification Certain reclassifications of prior period amounts have been made to conform to the current period presentation. Use of Estimates The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, as well as reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Warranties and Indemnification Our cloud computing solutions are typically warranted to perform in material conformance with its specifications. We include service level commitments to our customers that permit those customers to receive credits in the event we fail to meet those service levels. We establish an accrual based on an evaluation of the known service disruptions. Service level credit accrual charges are recorded against revenue and were not material for all periods presented. We have also agreed to indemnify our directors and executive officers for costs associated with any fees, expenses, judgments, fines and settlement amounts incurred by any of these persons in any action or proceeding to which any of those persons is, or is threatened to be, made a party by reason of the person’s service as a director or officer, including any action by us, arising out of that person’s services as a director or officer of our company or that person’s services provided to any other company or enterprise at our request. We maintain director and officer insurance coverage that may enable us to recover a portion of any future amounts paid. The fair values of these obligations are not material as of each balance sheet date. Our agreements include provisions indemnifying customers against intellectual property and other third-party claims. We have not incurred any costs as a result of such indemnification obligations and have not recorded any liabilities related to such obligations in the condensed consolidated financial statements. Recent Accounting Pronouncements In March 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standard Update (ASU) 2016-09, "Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting," which includes multiple provisions intended to simplify accounting for share-based payments. This new standard is effective for our interim and annual periods beginning January 1, 2017 and early adoption is permitted. We are currently evaluating the impact of this standard on our condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)," which requires lessees to generally recognize on the balance sheet operating and financing lease liabilities and corresponding right-of-use assets, and to recognize on the income statement the expenses in a manner similar to current practice. This new standard is effective for our interim and annual periods beginning January 1, 2019 and early adoption is permitted. While we are currently evaluating the impact of this standard on our condensed consolidated financial statements, we anticipate this standard will have a material impact on our condensed consolidated financial statements given the significant amount of operating leases we have. In January 2016, the FASB issued ASU 2016-01, "Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities," which addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. This new standard is effective for our interim and annual periods beginning January 1, 2018 and early adoption is not permitted. We are currently evaluating the impact of this standard on our condensed consolidated financial statements. In April 2015, the FASB issued ASU 2015-05, "Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement." ASU 2015-05 provides guidance to customers about whether a cloud computing arrangement includes software. If a cloud computing arrangement includes a software license, the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. We adopted this standard during the three months ended March 31, 2016 on a prospective basis and the adoption had no material impact on our condensed consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)," which will supersede virtually all existing revenue guidance. Under this standard, an entity is required to recognize revenue upon transfer of promised goods or services to customers in an amount that reflects the expected consideration received in exchange for those goods or services. As such, an entity will need to use more judgment and make more estimates than under the current guidance. This standard should be applied retrospectively either to each prior reporting period presented in the financial statements, or only to the most current reporting period presented in the financial statements with a cumulative effect adjustment recorded in the retained earnings. In March 2016, the FASB issued ASU 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)," which clarifies the principal versus agent guidance in the new revenue recognition standard. In April 2016, the FASB issued ASU 2016-10, "Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing," which clarifies the guidance on accounting for licenses of intellectual property (IP) and identifying performance obligations in the new revenue recognition standard. These new standards are effective for our interim and annual periods beginning January 1, 2018 and early adoption is permitted. We are currently evaluating the impact of these standards on our condensed consolidated financial statements.

Investments

Investments	3 Months Ended
	Mar. 31, 2016
Available-for-sale Securities [Abstract]
Investments	Investments Marketable securities The following is a summary of our available-for-sale investment securities, excluding those securities classified within cash and cash equivalents on the consolidated balance sheets (in thousands): March 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Available-for-sale securities: Commercial paper $ 38,433 $ 1 $ — $ 38,434 Corporate notes and bonds 655,617 617 (468 ) 655,766 Certificates of deposit 14,467 — — 14,467 U.S. government agency securities 100,589 28 (30 ) 100,587 Total available-for-sale securities $ 809,106 $ 646 $ (498 ) $ 809,254 December 31, 2015 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Available-for-sale securities: Commercial paper $ 32,430 $ 2 $ (38 ) $ 32,394 Corporate notes and bonds 617,054 7 (2,027 ) 615,034 Certificates of deposit 29,610 2 (17 ) 29,595 U.S. government agency securities 134,962 1 (374 ) 134,589 Total available-for-sale securities $ 814,056 $ 12 $ (2,456 ) $ 811,612 As of March 31, 2016 , the contractual maturities of our investments did not exceed 24 months. The fair values of available-for-sale investments, by remaining contractual maturity, are as follows (in thousands): March 31, 2016 Due in 1 year or less $ 447,423 Due in 1 year through 2 years 361,831 Total $ 809,254 We had certain available-for-sale securities in a gross unrealized loss position, substantially all of which had been in such position for less than 12 months . There were no impairments considered "other-than-temporary" as it is more likely than not we will hold the securities until maturity or a recovery of the cost basis. The following table shows the fair values and the gross unrealized losses of these securities, classified by the length of time that the securities have been in a continuous unrealized loss position, and aggregated by investment types (in thousands): March 31, 2016 Less than 12 Months 12 Months or Greater Total Fair Value Gross Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate notes and bonds $ 338,073 $ (468 ) $ — $ — $ 338,073 $ (468 ) U.S. government agency securities 66,202 (30 ) — — 66,202 (30 ) Total $ 404,275 $ (498 ) $ — $ — $ 404,275 $ (498 ) December 31, 2015 Less than 12 Months 12 Months or Greater Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Commercial paper $ 24,913 $ (38 ) $ — $ — $ 24,913 $ (38 ) Corporate notes and bonds 539,586 (1,897 ) 60,099 (130 ) 599,685 (2,027 ) Certificates of deposit 19,750 (17 ) — — 19,750 (17 ) U.S. government agency securities 132,581 (374 ) — — 132,581 (374 ) Total $ 716,830 $ (2,326 ) $ 60,099 $ (130 ) $ 776,929 $ (2,456 ) Strategic investments We account for our investments in non-marketable equity securities of certain privately-held companies under the cost method, as we have less than a 20% ownership interest and we do not have the ability to exercise significant influence over the operations of these companies. The carrying value of these investments was $10.5 million as of March 31, 2016 and December 31, 2015 , which is included in "Other assets" on the condensed consolidated balance sheets.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2016
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]
Fair Value Measurements	Fair Value Measurements The following table presents our fair value hierarchy for our assets measured at fair value on a recurring basis at March 31, 2016 (in thousands): Level 1 Level 2 Total Cash equivalents: Money market funds $ 88,990 $ — $ 88,990 Short-term investments: Commercial paper — 38,434 38,434 Corporate notes and bonds — 350,828 350,828 Certificates of deposit — 6,962 6,962 U.S. government agency securities — 51,199 51,199 Long-term investments: Corporate notes and bonds — 304,938 304,938 Certificates of deposit — 7,505 7,505 U.S. government agency securities — 49,388 49,388 Total $ 88,990 $ 809,254 $ 898,244 The following table presents our fair value hierarchy for our assets measured at fair value on a recurring basis at December 31, 2015 (in thousands): Level 1 Level 2 Total Cash equivalents: Money market funds $ 263,515 $ — $ 263,515 Commercial paper — 2,000 2,000 Corporate notes and bonds — 1,119 1,119 Short-term investments: Commercial paper — 32,394 32,394 Corporate notes and bonds — 303,567 303,567 Certificates of deposit — 23,736 23,736 U.S. government agency securities — 29,248 29,248 Long-term investments: Corporate notes and bonds — 311,467 311,467 Certificates of deposit — 5,859 5,859 U.S. government agency securities — 105,341 105,341 Total $ 263,515 $ 814,731 $ 1,078,246 We determine the fair value of our security holdings based on pricing from our service provider and market prices from industry-standard independent data providers. Such market prices may be quoted prices in active markets for identical assets (Level 1 inputs) or pricing determined using inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs), such as yield curve, volatility factors, credit spreads, default rates, loss severity, current market and contractual prices for the underlying instruments or debt, broker and dealer quotes, as well as other relevant economic measures. See Note 8 for the fair value measurement of our convertible senior notes.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill balances are presented below (in thousands): Carrying Amount Balance as of December 31, 2015 $ 55,669 Foreign currency translation adjustments 1,695 Balance as of March 31, 2016 $ 57,364 Intangible assets consist of the following (in thousands): March 31, 2016 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Developed technology $ 58,715 $ (20,398 ) $ 38,317 Other 8,575 (646 ) 7,929 Total intangible assets $ 67,290 $ (21,044 ) $ 46,246 December 31, 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Developed technology $ 58,144 $ (17,463 ) $ 40,681 Other 3,695 (1,371 ) 2,324 Total intangible assets $ 61,839 $ (18,834 ) $ 43,005 Amortization expense for intangible assets for the three months ended March 31, 2016 and 2015 was approximately $2.9 million and $3.0 million , respectively.

Property and Equipment

Property and Equipment	3 Months Ended
	Mar. 31, 2016
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment Property and equipment, net consists of the following (in thousands): March 31, December 31, 2016 2015 Computer equipment and software $ 197,253 $ 180,197 Leasehold improvements 33,126 31,659 Furniture and fixtures 27,527 26,017 Building 6,513 6,318 Construction in progress 3,200 1,886 267,619 246,077 Less: Accumulated depreciation (113,375 ) (101,363 ) Total property and equipment, net $ 154,244 $ 144,714 Construction in progress consists primarily of leasehold improvements and in-process software development costs. Depreciation expense for the three months ended March 31, 2016 and 2015 was $14.6 million and $10.8 million , respectively.

Accrued Expenses and Other Curr

Accrued Expenses and Other Current Liabilities	3 Months Ended
	Mar. 31, 2016
Disclosure Summary Of Accrued Expenses And Other Current Liabilities [Abstract]
Accrued Expenses and Other Current Liabilities	Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consist of the following (in thousands): March 31, December 31, 2016 2015 Taxes payable $ 8,129 $ 9,080 Bonuses and commissions 36,097 33,124 Accrued compensation 18,211 17,089 Other employee expenses 14,136 21,529 Accrued legal settlement expenses (1) 250,000 — Other 10,040 20,442 Total accrued expenses and other current liabilities $ 336,613 $ 101,264 (1) Refer to Note 14 for further details.

Convertible Senior Notes

Convertible Senior Notes	3 Months Ended
	Mar. 31, 2016
Convertible Notes Payable [Abstract]
Convertible Senior Notes	Convertible Senior Notes In November 2013 , we issued 0% convertible senior notes due November 1, 2018 with an aggregate principal amount of $575 million , or the Notes. The Notes will not bear interest. The Notes mature on November 1, 2018 unless converted or repurchased in accordance with their terms prior to such date. We cannot redeem the Notes prior to maturity. The Notes are unsecured obligations and do not contain any financial covenants or restrictions on the payments of dividends, the incurrence of indebtedness or the issuance or repurchase of securities by us or any of our subsidiaries. Upon conversion, we may choose to pay or deliver, as the case may be, cash, shares of our common stock or a combination of cash and shares of our common stock. We intend to settle the principal amount of the Notes with cash. The Notes are convertible up to 7.8 million shares of our common stock at an initial conversion rate of approximately 13.54 shares of common stock per $1,000 principal amount, which is equal to an initial conversion price of approximately $73.88 per share of common stock, subject to adjustment. Holders of the Notes may convert their Notes at their option at any time prior to the close of business on the business day immediately preceding July 1, 2018 , only under the following circumstances: • during any calendar quarter commencing after the calendar quarter ending on March 31, 2014 (and only during such calendar quarter), if the last reported sale price of the 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, or the measurement period, in which the trading price per $1,000 principal amount of the Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate on each such trading day; or • upon the occurrence of specified corporate events. On or after July 1, 2018 , a holder may convert all or any portion of its 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 conditions. Upon conversion, we will pay or deliver, as the case may be, cash, shares of our common stock or a combination of cash and shares of our common stock, at our election. The conversion price will be subject to adjustment in some events. Holders of the Notes who convert their notes in connection with certain corporate events that constitute a “make-whole fundamental change” are, under certain circumstances, entitled to an increase in the conversion rate. Additionally, in the event of a corporate event that constitutes a “fundamental change,” holders of the Notes may require us to purchase with cash all or a portion of the Notes upon the occurrence of a fundamental change, at a purchase price equal to 100% of the principal amount of the Notes plus any accrued and unpaid interest. In accounting for the issuance of the Notes, we 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 liability 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, or the debt discount, is amortized to interest expense using the effective interest method over the term of the Note. The equity component is not 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, we allocated the total amount incurred to the liability and equity components based on their relative fair 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 were netted with the equity component of the Notes in stockholders’ equity. The Notes consisted of the following (in thousands): March 31, 2016 December 31, 2015 Liability: Principal $ 575,000 $ 575,000 Less: debt issuance cost and debt discount, net of amortization (92,357 ) (100,466 ) Net carrying amount $ 482,643 $ 474,534 We consider the fair value of the Notes at March 31, 2016 and December 31, 2015 to be a Level 2 measurement. The estimated fair values of the Notes were $610.4 million and $741.8 million at March 31, 2016 and December 31, 2015 , respectively (based on the closing trading price per $100 of the Notes on March 31, 2016 and December 31, 2015 , respectively). The Notes were not convertible as of March 31, 2016 and December 31, 2015 . As of March 31, 2016 , the remaining life of the Notes is 31 months. The following table sets forth total interest expense recognized related to the Notes (in thousands): Three Months Ended March 31, 2016 2015 Amortization of debt issuance cost $ 435 $ 406 Amortization of debt discount 7,674 7,172 Total $ 8,109 $ 7,578 Effective interest rate of the liability component 6.5% Note Hedge To minimize the impact of potential economic dilution upon conversion of the Notes, we entered into convertible note hedge transactions, or the Note Hedge, with respect to our common stock concurrent with the issuance of the Notes. The Note Hedge covers approximately 7.8 million shares of our common stock at a strike price per share that corresponds to the initial conversion price of the Notes, subject to adjustment, and is exercisable upon conversion of the Notes. We paid an aggregate amount of $135.8 million for the Note Hedge. The Note Hedge will expire upon maturity of the Notes. The Note Hedge is intended to reduce the potential economic dilution upon conversion of the Notes in the event that the fair value per share of our common stock at the time of exercise is greater than the conversion price of the Notes. The Note Hedge is a separate transaction and is not part of the terms of the Notes. The Note Hedge does not impact earnings per share, as it was entered into to offset any dilution from the Notes. Warrants Separately, we entered into warrant transactions, or the Warrants, whereby we sold warrants to acquire up to 7.8 million shares of our common stock, at a strike price of $107.46 per share, subject to adjustment. We received aggregate proceeds of $84.5 million from the sale of the Warrants. If the average market value per share of our common stock for the reporting period, as measured under the Warrants, exceeds the strike price of the Warrants, the Warrants will have a dilutive effect on our earnings per share. The Warrants are separate transactions and are not remeasured through earnings each reporting period. The Warrants are not part of the Notes or the Note Hedge, and have been accounted for as part of additional paid-in capital.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	3 Months Ended
	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss The components of accumulated other comprehensive loss, net of tax, consist of the following (in thousands): March 31, December 31, 2016 2015 Foreign currency translation adjustment $ (13,758 ) $ (14,438 ) Net unrealized loss on investments, net of tax (811 ) (2,444 ) Accumulated other comprehensive loss $ (14,569 ) $ (16,882 ) Reclassification adjustments out of accumulated other comprehensive loss into net loss were immaterial for all periods presented.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2016
Disclosure Common Stock Outstanding And Reserved Shares Of Common Stock For Future Issuance [Abstract]
Common Stock	Stockholders' Equity Common Stock We were authorized to issue 600,000,000 shares of common stock as of March 31, 2016 . Holders of our common stock are not entitled to receive dividends unless declared by our board of directors. As of March 31, 2016 , we had 162,848,163 shares of common stock outstanding and had reserved shares of common stock for future issuance as follows: March 31, 2016 Stock option plans: Options outstanding 7,718,715 RSUs 14,161,913 Stock awards available for future grants: 2012 Equity Incentive Plan (1) 21,360,061 2012 Employee Stock Purchase Plan (1) 8,850,836 Total reserved shares of common stock for future issuance 52,091,525 (1) Refer to Note 11 for a description of these plans. During the three months ended March 31, 2016 and 2015 , we issued a total of 2,062,399 shares and 3,681,747 shares, respectively, from stock option exercises, vesting of restricted stock units, or RSUs, and purchases from the employee stock purchase plan, or ESPP.

Stock Awards

Stock Awards	3 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Awards	Stock Awards We have a 2005 Stock Option Plan, or 2005 Plan, which provides for grants of stock awards, including options to purchase shares of common stock, stock purchase rights and RSUs to certain employees, officers, directors and consultants. Our 2012 Equity Incentive Plan, or 2012 Plan, provides for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, RSUs, performance-based stock awards and other forms of equity compensation, or collectively, stock awards. In addition, the 2012 Plan provides for the grant of performance cash awards. Incentive stock options may be granted only to employees. All other awards may be granted to employees, including officers, as well as directors and consultants. The share reserve may increase to the extent outstanding stock options under the 2005 Plan expire or terminate unexercised. The share reserve also automatically increases on January 1 of each year until January 1, 2022, by up to 5% of the total number of shares of common stock outstanding on December 31 of the preceding year as determined by the board of directors. On January 1, 2016 , 8,039,288 shares of common stock were automatically added to the 2012 Plan pursuant to the provision described in the preceding sentence. Our 2012 Employee Stock Purchase Plan, or 2012 ESPP, authorizes the issuance of shares of common stock pursuant to purchase rights granted to our employees. The price at which common stock is purchased under the 2012 ESPP is equal to 85% of the fair market value of the common stock on the first or last day of the offering period, whichever is lower. Offering periods are six months long and begin on February 1 and August 1 of each year. The number of shares of common stock reserved for issuance automatically increases on January 1 of each year until January 1, 2022, by up to 1% of the total number of shares of common stock outstanding on December 31 of the preceding year as determined by the board of directors. On January 1, 2016 , 1,607,858 shares of common stock were automatically added to the 2012 ESPP pursuant to the provision described in the preceding sentence. Stock Options A summary of the stock option activity for the three months ended March 31, 2016 is as follows: Number of Shares Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (in thousands) Outstanding at December 31, 2015 8,255,554 $ 16.65 Granted 169,400 65.92 Exercised (579,504 ) 5.28 $ 35,876 Canceled (126,735 ) 58.05 Outstanding at March 31, 2016 7,718,715 $ 17.90 5.86 $ 340,109 Vested and expected to vest as of March 31, 2016 7,612,105 $ 17.27 5.81 $ 339,664 Vested and exercisable as of March 31, 2016 6,420,996 $ 10.62 5.39 $ 325,305 Aggregate intrinsic value represents the difference between the estimated fair value of our common stock and the exercise price of outstanding, in-the-money options. The weighted-average grant date fair value per share of options granted was $26.81 for the three months ended March 31, 2016 . The total fair value of shares vested was $4.9 million for the three months ended March 31, 2016 . As of March 31, 2016 , total unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested stock options was approximately $26.2 million . The weighted-average remaining vesting period of unvested stock options at March 31, 2016 was 2.35 years . RSUs A summary of RSU activity for the three months ended March 31, 2016 is as follows: Number of Shares Weighted Average Grant Date Fair Value (Per Share) Aggregate Fair Value (in thousands) Non-vested and outstanding at December 31, 2015 12,417,805 $ 63.38 Granted 3,822,832 51.11 Vested (1,708,179 ) 58.42 $ 89,516 Forfeited (370,545 ) 64.43 Non-vested and outstanding at March 31, 2016 14,161,913 $ 60.64 $ 866,426 Expected to vest as of March 31, 2016 11,593,513 $ 709,291 RSUs granted under the 2005 Plan and the 2012 Plan to employees generally vest over a four -year period. As of March 31, 2016 , total unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested RSUs was approximately $639.0 million and the weighted-average remaining vesting period was 2.99 years .

Net Loss Per Share

Net Loss Per Share	3 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per Share The following table presents the calculation of basic and diluted net loss per share (in thousands, except share and per share data): Three Months Ended March 31, 2016 2015 Numerator: Net loss $ (333,332 ) $ (58,093 ) Denominator: Weighted-average shares outstanding—basic and diluted 162,067,108 151,601,880 Net loss per share—basic and diluted: $ (2.06 ) $ (0.38 ) Potentially dilutive securities that are not included in the calculation of diluted net loss per share because doing so would be antidilutive are as follows: March 31, 2016 2015 Common stock options 7,718,715 13,506,834 Restricted stock units 14,161,913 13,539,235 Common stock subject to repurchase — 3,794 ESPP obligations 292,689 209,013 Convertible senior notes 7,783,023 7,783,023 Warrants related to the issuance of convertible senior notes 7,783,023 7,783,023 Total potentially dilutive securities 37,739,363 42,824,922

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We compute our provision for income taxes by applying the estimated annual effective tax rate to year-to-date income (loss) from recurring operations and adjust the provision for discrete tax items recorded in the period. Our effective tax rate was (1)% and (2)% for the three months ended March 31, 2016 and 2015 , respectively, which was lower than the U.S. federal statutory tax rate of 34% . The lower tax rate was primarily attributable to our loss from operations, the foreign tax rate differential, and non-deductible expenses arising from stock-based compensation. We are subject to taxation in the United States and foreign jurisdictions. As of March 31, 2016 , our tax years 2005 to 2015 remain subject to examination in most jurisdictions. There are differing interpretations of tax laws and regulations, and as a result, disputes may arise with tax authorities involving issues of the timing and amount of deductions and allocations of income among various tax jurisdictions. We periodically evaluate our exposures associated with our tax filing positions. We believe that adequate amounts have been reserved for any adjustments that may ultimately result from these examinations, and we do not anticipate a significant impact to our gross unrecognized tax benefits within the next 12 months related to these years. Although the timing of the resolution, settlement, and closure of any audit is highly uncertain, it is reasonably possible that the balance of gross unrecognized tax benefits could significantly change in the next 12 months. However, given the number of years that remain subject to examination, we are unable to estimate the full range of possible adjustments to the balance of gross unrecognized tax benefits.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Leases We lease facilities for data center capacity and office space under non-cancelable operating lease agreements with various expiration dates. There have been no material changes in our commitments under contractual obligations, as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2015 . Legal Proceedings From time to time, we are party to litigation and other legal proceedings in the ordinary course of business. While the results of any litigation or other legal proceedings are uncertain, management does not believe the ultimate resolution of any pending legal matters is likely to have a material adverse effect on our financial position, results of operations or cash flows, except as discussed below and for those matters for which we have recorded a loss contingency. We accrue for loss contingencies when it is both probable that we will incur the loss and when we can reasonably estimate the amount of the loss or range of loss. Generally, our subscription agreements require us to defend our customers for third-party intellectual property infringement and other claims. Any adverse determination related to intellectual property claims or other litigation could prevent us from offering our services and adversely affect our financial condition and results of operations. On February 6, 2014, Hewlett-Packard Company (Hewlett-Packard) filed a lawsuit against us in the U.S. District Court for the Northern District of California. The lawsuit alleged patent infringement and sought damages and an injunction. On or about November 1, 2015, Hewlett Packard Enterprise Company (HPE) separated from Hewlett-Packard as an independent company, and Hewlett-Packard assigned to HPE all right, title, and interest in the eight Hewlett-Packard patents in the lawsuit and HPE was substituted as plaintiff in the litigation. On March 4, 2016, we entered into a confidential settlement agreement resolving the lawsuit with HPE (HPE Settlement). As a result, on March 9, 2016, the lawsuit was dismissed. BMC Software, Inc. (BMC) filed lawsuits against us in the U.S. District Court for the Eastern District of Texas on September 23, 2014 and February 12, 2016, and in the Dusseldorf (Germany) Regional Court, Patent Division, on March 2, 2016. Each of the lawsuits alleged patent infringement and sought damages and an injunction. On April 8, 2016, we entered into a confidential settlement agreement resolving all the lawsuits with BMC (BMC Settlement). As a result, the second Texas lawsuit was dismissed on April 14, 2016, and each of the initial Texas lawsuit and the German lawsuit was dismissed on April 25, 2016. These settlements are considered multiple element arrangements for accounting purposes. We evaluated the accounting treatment of these settlements by identifying each element of the arrangements, which included amongst other elements, a release of past infringement claims and a covenant not to sue for a specified term of years. The primary benefit we received from the arrangements was the settlement and termination of all existing litigation, the avoidance of future litigation expenses and the avoidance of future management and customer disruptions. We determined that none of the elements of the settlement agreements have identifiable future benefits. Accordingly, we recorded an aggregate legal settlement charge of $270.0 million in our condensed consolidated statement of comprehensive loss for the three months ended March 31, 2016, of which $250.0 million was accrued in the "Accrued expenses and other current liabilities" on our condensed consolidated balance sheet as of March 31, 2016. The charge covers the fulfillment by us of all financial obligations under both the BMC Settlement and HPE Settlement with no remaining financial obligations under either settlement.

Information about Geographic Ar

Information about Geographic Areas and Products	3 Months Ended
	Mar. 31, 2016
Segments, Geographical Areas [Abstract]
Information about Geographic Areas and Products	Information about Geographic Areas and Products Revenues by geographic area, based on the location of our users, were as follows for the periods presented (in thousands): Three Months Ended March 31, 2016 2015 North America (1) $ 210,517 $ 148,646 EMEA (2) 74,281 48,530 Asia Pacific and other 21,081 14,788 Total revenues $ 305,879 $ 211,964 Long-lived assets by geographic area were as follows (in thousands): March 31, December 31, 2016 2015 North America (3) $ 110,011 $ 104,085 EMEA (2) 32,174 32,027 Asia Pacific and other 12,059 8,602 Total long-lived assets $ 154,244 $ 144,714 (1) Revenues attributed to the United States were approximately 95% and 94% of North America revenues for the three months ended March 31, 2016 and 2015 , respectively. (2) Europe, the Middle East and Africa (3) Long-lived assets attributed to the United States were approximately 98% of North America long-lived assets as of March 31, 2016 and December 31, 2015 . Subscription revenues consist of the following (in thousands): Three Months Ended March 31, 2016 2015 Enterprise Service Management solutions $ 245,862 $ 167,204 IT Operations Management solutions 21,560 12,703 Total subscription revenues $ 267,422 $ 179,907 Our Enterprise Service Management solutions include Service Management, Business Management and ServiceNow Platform, which have similar features and functions, and are generally priced on a per user basis. Our IT Operations Management solutions, which improve visibility, availability and agility of enterprise services, are generally priced on a per node basis.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On April 8, 2016, we acquired ITapp in an all-cash transaction for approximately $15.0 million to expand our cloud management solution offering. Our accounting and analysis of this transaction is pending completion. On April 8, 2016, we entered into a confidential settlement agreement with BMC to resolve all patent-related litigation between the Company and BMC. Refer to Note 14 for further details of the settlement.

Summary of Significant Accoun22

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements and condensed footnotes have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring items) considered necessary for fair statement of results for the interim periods presented have been included. The results of operations for the three months ended March 31, 2016 are not necessarily indicative of the results to be expected for the year ended December 31, 2016 or for other interim periods or for future years. The condensed consolidated balance sheet as of December 31, 2015 is derived from audited financial statements as of that date, however, it does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in the Company’s Form 10-K for the year ended December 31, 2015 , which was filed with the Securities and Exchange Commission on February 25, 2016.
Principles of Consolidation	Principles of Consolidation The condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles, or GAAP, and include our accounts and the accounts of our wholly-owned subsidiaries. All significant intercompany transactions and balances have been eliminated upon consolidation.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, as well as reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Warranties and Indemnification	Warranties and Indemnification Our cloud computing solutions are typically warranted to perform in material conformance with its specifications. We include service level commitments to our customers that permit those customers to receive credits in the event we fail to meet those service levels. We establish an accrual based on an evaluation of the known service disruptions. Service level credit accrual charges are recorded against revenue and were not material for all periods presented. We have also agreed to indemnify our directors and executive officers for costs associated with any fees, expenses, judgments, fines and settlement amounts incurred by any of these persons in any action or proceeding to which any of those persons is, or is threatened to be, made a party by reason of the person’s service as a director or officer, including any action by us, arising out of that person’s services as a director or officer of our company or that person’s services provided to any other company or enterprise at our request. We maintain director and officer insurance coverage that may enable us to recover a portion of any future amounts paid. The fair values of these obligations are not material as of each balance sheet date. Our agreements include provisions indemnifying customers against intellectual property and other third-party claims. We have not incurred any costs as a result of such indemnification obligations and have not recorded any liabilities related to such obligations in the condensed consolidated financial statements.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In March 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standard Update (ASU) 2016-09, "Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting," which includes multiple provisions intended to simplify accounting for share-based payments. This new standard is effective for our interim and annual periods beginning January 1, 2017 and early adoption is permitted. We are currently evaluating the impact of this standard on our condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)," which requires lessees to generally recognize on the balance sheet operating and financing lease liabilities and corresponding right-of-use assets, and to recognize on the income statement the expenses in a manner similar to current practice. This new standard is effective for our interim and annual periods beginning January 1, 2019 and early adoption is permitted. While we are currently evaluating the impact of this standard on our condensed consolidated financial statements, we anticipate this standard will have a material impact on our condensed consolidated financial statements given the significant amount of operating leases we have. In January 2016, the FASB issued ASU 2016-01, "Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities," which addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. This new standard is effective for our interim and annual periods beginning January 1, 2018 and early adoption is not permitted. We are currently evaluating the impact of this standard on our condensed consolidated financial statements. In April 2015, the FASB issued ASU 2015-05, "Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement." ASU 2015-05 provides guidance to customers about whether a cloud computing arrangement includes software. If a cloud computing arrangement includes a software license, the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. We adopted this standard during the three months ended March 31, 2016 on a prospective basis and the adoption had no material impact on our condensed consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)," which will supersede virtually all existing revenue guidance. Under this standard, an entity is required to recognize revenue upon transfer of promised goods or services to customers in an amount that reflects the expected consideration received in exchange for those goods or services. As such, an entity will need to use more judgment and make more estimates than under the current guidance. This standard should be applied retrospectively either to each prior reporting period presented in the financial statements, or only to the most current reporting period presented in the financial statements with a cumulative effect adjustment recorded in the retained earnings. In March 2016, the FASB issued ASU 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)," which clarifies the principal versus agent guidance in the new revenue recognition standard. In April 2016, the FASB issued ASU 2016-10, "Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing," which clarifies the guidance on accounting for licenses of intellectual property (IP) and identifying performance obligations in the new revenue recognition standard. These new standards are effective for our interim and annual periods beginning January 1, 2018 and early adoption is permitted. We are currently evaluating the impact of these standards on our condensed consolidated financial statements.
Legal Proceedings	Legal Proceedings From time to time, we are party to litigation and other legal proceedings in the ordinary course of business. While the results of any litigation or other legal proceedings are uncertain, management does not believe the ultimate resolution of any pending legal matters is likely to have a material adverse effect on our financial position, results of operations or cash flows, except as discussed below and for those matters for which we have recorded a loss contingency. We accrue for loss contingencies when it is both probable that we will incur the loss and when we can reasonably estimate the amount of the loss or range of loss.

Investments (Tables)

Investments (Tables)	3 Months Ended
	Mar. 31, 2016
Available-for-sale Securities [Abstract]
Summary of Investments	The following is a summary of our available-for-sale investment securities, excluding those securities classified within cash and cash equivalents on the consolidated balance sheets (in thousands): March 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Available-for-sale securities: Commercial paper $ 38,433 $ 1 $ — $ 38,434 Corporate notes and bonds 655,617 617 (468 ) 655,766 Certificates of deposit 14,467 — — 14,467 U.S. government agency securities 100,589 28 (30 ) 100,587 Total available-for-sale securities $ 809,106 $ 646 $ (498 ) $ 809,254 December 31, 2015 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Available-for-sale securities: Commercial paper $ 32,430 $ 2 $ (38 ) $ 32,394 Corporate notes and bonds 617,054 7 (2,027 ) 615,034 Certificates of deposit 29,610 2 (17 ) 29,595 U.S. government agency securities 134,962 1 (374 ) 134,589 Total available-for-sale securities $ 814,056 $ 12 $ (2,456 ) $ 811,612
Investments Classified by Contractual Maturity Date	The fair values of available-for-sale investments, by remaining contractual maturity, are as follows (in thousands): March 31, 2016 Due in 1 year or less $ 447,423 Due in 1 year through 2 years 361,831 Total $ 809,254
Fair Values and Gross Unrealized Losses of Available-for-Sale Securities Aggregated by Investment Category	The following table shows the fair values and the gross unrealized losses of these securities, classified by the length of time that the securities have been in a continuous unrealized loss position, and aggregated by investment types (in thousands): March 31, 2016 Less than 12 Months 12 Months or Greater Total Fair Value Gross Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate notes and bonds $ 338,073 $ (468 ) $ — $ — $ 338,073 $ (468 ) U.S. government agency securities 66,202 (30 ) — — 66,202 (30 ) Total $ 404,275 $ (498 ) $ — $ — $ 404,275 $ (498 ) December 31, 2015 Less than 12 Months 12 Months or Greater Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Commercial paper $ 24,913 $ (38 ) $ — $ — $ 24,913 $ (38 ) Corporate notes and bonds 539,586 (1,897 ) 60,099 (130 ) 599,685 (2,027 ) Certificates of deposit 19,750 (17 ) — — 19,750 (17 ) U.S. government agency securities 132,581 (374 ) — — 132,581 (374 ) Total $ 716,830 $ (2,326 ) $ 60,099 $ (130 ) $ 776,929 $ (2,456 )

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2016
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table presents our fair value hierarchy for our assets measured at fair value on a recurring basis at March 31, 2016 (in thousands): Level 1 Level 2 Total Cash equivalents: Money market funds $ 88,990 $ — $ 88,990 Short-term investments: Commercial paper — 38,434 38,434 Corporate notes and bonds — 350,828 350,828 Certificates of deposit — 6,962 6,962 U.S. government agency securities — 51,199 51,199 Long-term investments: Corporate notes and bonds — 304,938 304,938 Certificates of deposit — 7,505 7,505 U.S. government agency securities — 49,388 49,388 Total $ 88,990 $ 809,254 $ 898,244 The following table presents our fair value hierarchy for our assets measured at fair value on a recurring basis at December 31, 2015 (in thousands): Level 1 Level 2 Total Cash equivalents: Money market funds $ 263,515 $ — $ 263,515 Commercial paper — 2,000 2,000 Corporate notes and bonds — 1,119 1,119 Short-term investments: Commercial paper — 32,394 32,394 Corporate notes and bonds — 303,567 303,567 Certificates of deposit — 23,736 23,736 U.S. government agency securities — 29,248 29,248 Long-term investments: Corporate notes and bonds — 311,467 311,467 Certificates of deposit — 5,859 5,859 U.S. government agency securities — 105,341 105,341 Total $ 263,515 $ 814,731 $ 1,078,246

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Goodwill balances are presented below (in thousands): Carrying Amount Balance as of December 31, 2015 $ 55,669 Foreign currency translation adjustments 1,695 Balance as of March 31, 2016 $ 57,364
Schedule of Intangible Assets	Intangible assets consist of the following (in thousands): March 31, 2016 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Developed technology $ 58,715 $ (20,398 ) $ 38,317 Other 8,575 (646 ) 7,929 Total intangible assets $ 67,290 $ (21,044 ) $ 46,246 December 31, 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Developed technology $ 58,144 $ (17,463 ) $ 40,681 Other 3,695 (1,371 ) 2,324 Total intangible assets $ 61,839 $ (18,834 ) $ 43,005

Property and Equipment (Tables)

Property and Equipment (Tables)	3 Months Ended
	Mar. 31, 2016
Property, Plant and Equipment [Abstract]
Summary of Property and Equipment, Net	Property and equipment, net consists of the following (in thousands): March 31, December 31, 2016 2015 Computer equipment and software $ 197,253 $ 180,197 Leasehold improvements 33,126 31,659 Furniture and fixtures 27,527 26,017 Building 6,513 6,318 Construction in progress 3,200 1,886 267,619 246,077 Less: Accumulated depreciation (113,375 ) (101,363 ) Total property and equipment, net $ 154,244 $ 144,714

Accrued Expenses and Other Cu27

Accrued Expenses and Other Current Liabilities (Tables)	3 Months Ended
	Mar. 31, 2016
Disclosure Summary Of Accrued Expenses And Other Current Liabilities [Abstract]
Summary of Accrued Expenses and Other Current Liabilities	Accrued expenses and other current liabilities consist of the following (in thousands): March 31, December 31, 2016 2015 Taxes payable $ 8,129 $ 9,080 Bonuses and commissions 36,097 33,124 Accrued compensation 18,211 17,089 Other employee expenses 14,136 21,529 Accrued legal settlement expenses (1) 250,000 — Other 10,040 20,442 Total accrued expenses and other current liabilities $ 336,613 $ 101,264 (1) Refer to Note 14 for further details.

Convertible Senior Notes (Table

Convertible Senior Notes (Tables)	3 Months Ended
	Mar. 31, 2016
Convertible Notes Payable [Abstract]
Schedule of Convertible Notes	The Notes consisted of the following (in thousands): March 31, 2016 December 31, 2015 Liability: Principal $ 575,000 $ 575,000 Less: debt issuance cost and debt discount, net of amortization (92,357 ) (100,466 ) Net carrying amount $ 482,643 $ 474,534
Interest Expense Recognized Related to the Notes	The following table sets forth total interest expense recognized related to the Notes (in thousands): Three Months Ended March 31, 2016 2015 Amortization of debt issuance cost $ 435 $ 406 Amortization of debt discount 7,674 7,172 Total $ 8,109 $ 7,578 Effective interest rate of the liability component 6.5%

Accumulated Other Comprehensi29

Accumulated Other Comprehensive Loss (Tables)	3 Months Ended
	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The components of accumulated other comprehensive loss, net of tax, consist of the following (in thousands): March 31, December 31, 2016 2015 Foreign currency translation adjustment $ (13,758 ) $ (14,438 ) Net unrealized loss on investments, net of tax (811 ) (2,444 ) Accumulated other comprehensive loss $ (14,569 ) $ (16,882 )

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2016
Disclosure Common Stock Outstanding And Reserved Shares Of Common Stock For Future Issuance [Abstract]
Common Stock Outstanding and Reserved Shares of Common Stock for Future Issuance	As of March 31, 2016 , we had 162,848,163 shares of common stock outstanding and had reserved shares of common stock for future issuance as follows: March 31, 2016 Stock option plans: Options outstanding 7,718,715 RSUs 14,161,913 Stock awards available for future grants: 2012 Equity Incentive Plan (1) 21,360,061 2012 Employee Stock Purchase Plan (1) 8,850,836 Total reserved shares of common stock for future issuance 52,091,525 (1) Refer to Note 11 for a description of these plans.

Stock Awards (Tables)

Stock Awards (Tables)	3 Months Ended
	Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Stock Option Activity	A summary of the stock option activity for the three months ended March 31, 2016 is as follows: Number of Shares Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (in thousands) Outstanding at December 31, 2015 8,255,554 $ 16.65 Granted 169,400 65.92 Exercised (579,504 ) 5.28 $ 35,876 Canceled (126,735 ) 58.05 Outstanding at March 31, 2016 7,718,715 $ 17.90 5.86 $ 340,109 Vested and expected to vest as of March 31, 2016 7,612,105 $ 17.27 5.81 $ 339,664 Vested and exercisable as of March 31, 2016 6,420,996 $ 10.62 5.39 $ 325,305
Schedule of Restricted Stock Unit Activity	A summary of RSU activity for the three months ended March 31, 2016 is as follows: Number of Shares Weighted Average Grant Date Fair Value (Per Share) Aggregate Fair Value (in thousands) Non-vested and outstanding at December 31, 2015 12,417,805 $ 63.38 Granted 3,822,832 51.11 Vested (1,708,179 ) 58.42 $ 89,516 Forfeited (370,545 ) 64.43 Non-vested and outstanding at March 31, 2016 14,161,913 $ 60.64 $ 866,426 Expected to vest as of March 31, 2016 11,593,513 $ 709,291

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
Calculation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders	The following table presents the calculation of basic and diluted net loss per share (in thousands, except share and per share data): Three Months Ended March 31, 2016 2015 Numerator: Net loss $ (333,332 ) $ (58,093 ) Denominator: Weighted-average shares outstanding—basic and diluted 162,067,108 151,601,880 Net loss per share—basic and diluted: $ (2.06 ) $ (0.38 )
Summary of Potentially Dilutive Securities	Potentially dilutive securities that are not included in the calculation of diluted net loss per share because doing so would be antidilutive are as follows: March 31, 2016 2015 Common stock options 7,718,715 13,506,834 Restricted stock units 14,161,913 13,539,235 Common stock subject to repurchase — 3,794 ESPP obligations 292,689 209,013 Convertible senior notes 7,783,023 7,783,023 Warrants related to the issuance of convertible senior notes 7,783,023 7,783,023 Total potentially dilutive securities 37,739,363 42,824,922

Information about Geographic 33

Information about Geographic Areas and Products (Tables)	3 Months Ended
	Mar. 31, 2016
Segments, Geographical Areas [Abstract]
Revenues by Geographic Area, Based on Billing Location of Customer	Revenues by geographic area, based on the location of our users, were as follows for the periods presented (in thousands): Three Months Ended March 31, 2016 2015 North America (1) $ 210,517 $ 148,646 EMEA (2) 74,281 48,530 Asia Pacific and other 21,081 14,788 Total revenues $ 305,879 $ 211,964
Schedule of Long Lived Assets by Geographic Area	Long-lived assets by geographic area were as follows (in thousands): March 31, December 31, 2016 2015 North America (3) $ 110,011 $ 104,085 EMEA (2) 32,174 32,027 Asia Pacific and other 12,059 8,602 Total long-lived assets $ 154,244 $ 144,714 (1) Revenues attributed to the United States were approximately 95% and 94% of North America revenues for the three months ended March 31, 2016 and 2015 , respectively. (2) Europe, the Middle East and Africa (3) Long-lived assets attributed to the United States were approximately 98% of North America long-lived assets as of March 31, 2016 and December 31, 2015 .
Schedule Of Subscription Revenue By Product	Subscription revenues consist of the following (in thousands): Three Months Ended March 31, 2016 2015 Enterprise Service Management solutions $ 245,862 $ 167,204 IT Operations Management solutions 21,560 12,703 Total subscription revenues $ 267,422 $ 179,907

Investments - Summary of Invest

Investments - Summary of Investments (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 809,106	$ 814,056
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	646	12
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(498)	(2,456)
Estimated Fair Value	809,254	811,612
Short-term investments	447,423	388,945
Long-term investments	361,831	422,667
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	38,433	32,430
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	1	2
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	(38)
Estimated Fair Value	38,434	32,394
Corporate notes and bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	655,617	617,054
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	617	7
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(468)	(2,027)
Estimated Fair Value	655,766	615,034
Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	14,467	29,610
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	2
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	(17)
Estimated Fair Value	14,467	29,595
US Treasury and Government [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	100,589	134,962
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	28	1
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(30)	(374)
Estimated Fair Value	$ 100,587	$ 134,589

Investments - Fair Values and G

Investments - Fair Values and Gross Unrealized Losses of Available-for-Sale Securities Aggregated by Investment Category (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 404,275	$ 716,830
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(498)	(2,326)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	60,099
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(130)
Fair Value	404,275	776,929
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(498)	(2,456)
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		24,913
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(38)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0
Fair Value		24,913
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(38)
Corporate notes and bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	338,073	539,586
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(468)	(1,897)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	60,099
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(130)
Fair Value	338,073	599,685
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(468)	(2,027)
Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		19,750
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(17)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0
Fair Value		19,750
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(17)
US Treasury and Government [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	66,202	132,581
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(30)	(374)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Fair Value	66,202	132,581
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (30)	$ (374)

Investments - Additional Inform

Investments - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Available-for-sale Securities [Abstract]
Available For Sale Securities Maturities Term Maximum	24 months
Available for sale, gross unrealized term held	12 months
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities	$ 0
Cost method investments	$ 10,500,000	$ 10,500,000

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	$ 809,254	$ 811,612
Total	898,244	1,078,246
Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	38,434	32,394
Corporate notes and bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	655,766	615,034
Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	14,467	29,595
US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	100,587	134,589
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	88,990	263,515
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	809,254	814,731
Cash Equivalents [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	88,990	263,515
Cash Equivalents [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		2,000
Cash Equivalents [Member] | Corporate notes and bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		1,119
Cash Equivalents [Member] | Level 1 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	88,990	263,515
Cash Equivalents [Member] | Level 1 [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		0
Cash Equivalents [Member] | Level 1 [Member] | Corporate notes and bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		0
Cash Equivalents [Member] | Level 2 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Cash Equivalents [Member] | Level 2 [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		2,000
Cash Equivalents [Member] | Level 2 [Member] | Corporate notes and bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		1,119
Short-term Investments [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	38,434	32,394
Short-term Investments [Member] | Corporate notes and bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	350,828	303,567
Short-term Investments [Member] | Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	6,962	23,736
Short-term Investments [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	51,199	29,248
Short-term Investments [Member] | Level 1 [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Short-term Investments [Member] | Level 1 [Member] | Corporate notes and bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Short-term Investments [Member] | Level 1 [Member] | Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Short-term Investments [Member] | Level 1 [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Short-term Investments [Member] | Level 2 [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	38,434	32,394
Short-term Investments [Member] | Level 2 [Member] | Corporate notes and bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	350,828	303,567
Short-term Investments [Member] | Level 2 [Member] | Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	6,962	23,736
Short-term Investments [Member] | Level 2 [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	51,199	29,248
Other Long-term Investments [Member] | Corporate notes and bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	304,938	311,467
Other Long-term Investments [Member] | Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	7,505	5,859
Other Long-term Investments [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	49,388	105,341
Other Long-term Investments [Member] | Level 1 [Member] | Corporate notes and bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Other Long-term Investments [Member] | Level 1 [Member] | Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Other Long-term Investments [Member] | Level 1 [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Other Long-term Investments [Member] | Level 2 [Member] | Corporate notes and bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	304,938	311,467
Other Long-term Investments [Member] | Level 2 [Member] | Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	7,505	5,859
Other Long-term Investments [Member] | Level 2 [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	$ 49,388	$ 105,341

Goodwill and Intangible Asset38

Goodwill and Intangible Assets - Schedule of Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 55,669
Foreign currency translation adjustments	1,695
Goodwill, end of period	$ 57,364

Goodwill and Intangible Asset39

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 67,290		$ 61,839
Accumulated Amortization	(21,044)		(18,834)
Intangible assets, net	46,246		43,005
Amortization expense	2,900	$ 3,000
Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	58,715		58,144
Accumulated Amortization	(20,398)		(17,463)
Intangible assets, net	38,317		40,681
Other acquisition-related intangible assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,575		3,695
Accumulated Amortization	(646)		(1,371)
Intangible assets, net	$ 7,929		$ 2,324

Property and Equipment (Detail)

Property and Equipment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 267,619		$ 246,077
Less: accumulated depreciation	(113,375)		(101,363)
Total property and equipment, net	154,244		144,714
Depreciation	14,600	$ 10,800
Computer Equipment And Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	197,253		180,197
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	33,126		31,659
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	27,527		26,017
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	6,513		6,318
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 3,200		$ 1,886

Accrued Expenses and Other Cu41

Accrued Expenses and Other Current Liabilities - (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Disclosure Summary Of Accrued Expenses And Other Current Liabilities [Abstract]
Taxes payable	$ 8,129	$ 9,080
Bonuses and commissions	36,097	33,124
Accrued compensation	18,211	17,089
Other employee expenses	14,136	21,529
Accrued legal settlement expenses (1)	250,000	0
Other	10,040	20,442
Total accrued expenses and other current liabilities	$ 336,613	$ 101,264

Convertible Senior Notes (Detai

Convertible Senior Notes (Details) - USD ($)	1 Months Ended	3 Months Ended
	Nov. 30, 2013	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Debt Conversion [Line Items]
Convertible Debt, Fair Value Disclosures		$ 610,400,000		$ 741,800,000
Amortization of Debt Discount (Premium)		7,674,000	$ 7,172,000
Notes face amount	$ 1,000
Contractual interest rate - Notes	0.00%
Notes Maturity Date	Nov. 1, 2018
Notes, par value	$ 575,000,000	$ 575,000,000		575,000,000
Converted number of shares	7,800,000
Conversion rate	13.54
Initial conversion price, per share	$ 73.88
Terms of conversion feature	July 1, 2018
Earliest date of conversion	Mar. 31, 2014
Percentage of purchase price of Notes which should be paid upon fundamental change	100.00%
Remaining life of the Notes		31 months
Fair Value Measurement Debt Basis Amount		$ 100		$ 100
Amortization of debt discount and issuance costs		$ 8,109,000	$ 7,578,000
Noted Hedged shares of common stock covered	7,800,000
Purchase of convertible note hedge	$ 135,800,000
Issuance of warrants (in shares)	7,800,000
Exercise price of warrants issued (USD per share)	$ 107.46
Proceeds from issuance of warrants	$ 84,500,000
Calendar Quarter End [Member]
Debt Conversion [Line Items]
Number of days out of 30 that common stock price exceeded conversion price, days	20 days
Number of consecutive trading days in a period	30 days
Calendar Quarter End [Member] | Minimum [Member]
Debt Conversion [Line Items]
Threshold percentage of stock price trigger	130.00%
Measurement Period [Member]
Debt Conversion [Line Items]
Number of days out of 30 that common stock price exceeded conversion price, days	5 days
Number of consecutive trading days in a period	5 days
Notes face amount	$ 1,000
Measurement Period [Member] | Maximum [Member]
Debt Conversion [Line Items]
Threshold percentage of stock price trigger	98.00%

Convertible Senior Notes - Sche

Convertible Senior Notes - Schedule of Notes Payable (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015	Nov. 30, 2013
Convertible Notes Payable [Abstract]
Notes, par value	$ 575,000,000	$ 575,000,000	$ 575,000,000
Less: debt discount net of amortization	(92,357,000)	(100,466,000)
Convertible senior notes, net	$ 482,643,000	$ 474,534,000

Convertible Senior Notes - Sc44

Convertible Senior Notes - Schedule of Interest Expense Recognized (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Convertible Notes Payable [Abstract]
Amortization of debt issuance cost	$ 435	$ 406
Amortization of Debt Discount (Premium)	7,674	7,172
Amortization of debt discount and issuance costs	$ 8,109	$ 7,578
Effective interest rate of the liability component	6.50%	6.50%

Accumulated Other Comprehensi45

Accumulated Other Comprehensive Loss - (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustment	$ (13,758)	$ (14,438)
Net unrealized loss on investments	(811)	(2,444)
Accumulated other comprehensive loss, net of tax	$ (14,569)	$ (16,882)

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Stockholders' Equity
Shares of common stock, authorized (shares)	600,000,000
Shares of common stock, issued and sold (shares)	162,848,163
Common Stock [Member]
Stockholders' Equity
Stock Issued During Period, Shares, New Issues	2,062,399	3,681,747

Stockholders' Equity - Outstand

Stockholders' Equity - Outstanding and Reserved Shares of Common Stock for Future Issuance (Detail) - shares		Mar. 31, 2016	Dec. 31, 2015
Common stock outstanding and reserved shares of common stock for future issuance
Options outstanding		7,718,715	8,255,554
Total reserved shares of common stock for future issuance		52,091,525
2012 Equity Incentive Plan [Member]
Common stock outstanding and reserved shares of common stock for future issuance
Total reserved shares of common stock for future issuance	[1]	21,360,061
2012 Employee Stock Purchase Plan [Member]
Common stock outstanding and reserved shares of common stock for future issuance
Total reserved shares of common stock for future issuance	[1]	8,850,836
Stock Options [Member]
Common stock outstanding and reserved shares of common stock for future issuance
Options outstanding		7,718,715
Restricted Stock Units (RSUs) [Member]
Common stock outstanding and reserved shares of common stock for future issuance
RSUs		14,161,913	12,417,805
[1]	Refer to Note 11 for a description of these plans.

Stock Awards - Additional Infor

Stock Awards - Additional Information (Detail) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2016USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value of options granted (usd per share) | $ / shares	$ 26.81
Fair value of vested shares	$ 4.9
Total unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested stock options	$ 26.2
Weighted-average remaining vesting period for unvested stock options (in years)	2 years 128 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average remaining vesting period for unvested stock options (in years)	2 years 361 days
Compensation expense recognized, vesting term (in years)	4 years
Unrecognized compensation expense expected to be recognized	$ 639
2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock outstanding, increase, percentage	5.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized | shares	8,039,288
2012 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock outstanding, increase, percentage	1.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized | shares	1,607,858
Common stock purchase price percentage	85.00%
Award offering period (in months)	6 months

Stock Awards - Summary of Stock

Stock Awards - Summary of Stock Option Activity (Detail) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)$ / sharesshares
Summary of stock option activity
Number of Shares, Outstanding, Beginning Balance | shares	8,255,554
Number of Shares, Granted | shares	169,400
Number of Shares, Exercised | shares	(579,504)
Number of shares, Cancelled | shares	(126,735)
Number of Shares, Outstanding, Ending Balance | shares	7,718,715
Number of Shares, Vested and expected to vest | shares	7,612,105
Number of Shares, Vested and exercisable | shares	6,420,996
Weighted-Average Exercise Price
Weighted-Average Exercise Price, Outstanding, Beginning Balance, usd per share | $ / shares	$ 16.65
Weighted-Average Exercise Price, Granted, usd per share | $ / shares	65.92
Weighted-Average Exercise Price, Exercised, usd per share | $ / shares	5.28
Weighted-Average Exercise Price Cancelled, usd per share | $ / shares	58.05
Weighted-Average Exercise Price, Outstanding, Ending Balance, usd per share | $ / shares	17.90
Weighted-Average Exercise Price, Vested and expected to vest, usd per share | $ / shares	17.27
Weighted-Average Exercise Price, Vested and exercisable, usd per share | $ / shares	$ 10.62
Weighted-Average Remaining Contractual Life (in years)	5 years 314 days
Weighted-Average Remaining Contractual Term, Vested and expected to vest (in years)	5 years 296 days
Weighted-Average Remaining Contractual Term, Vested and exercisable (in years)	5 years 142 days
Aggregate Intrinsic Value, Exercised | $	$ 35,876
Aggregate Intrinsic Value, Outstanding | $	340,109
Aggregate Intrinsic Value, Vested and expected to vest | $	339,664
Aggregate Intrinsic Value, Vested and exercisable | $	$ 325,305

Stock Awards Stock Awards - Res

Stock Awards Stock Awards - Restricted Stock Unit Table (Details) - Restricted Stock Units (RSUs) [Member] $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)$ / sharesshares
Shares Outstanding
Outstanding shares units beginning balance	12,417,805
Granted	3,822,832
Vested	(1,708,179)
Forfeited	(370,545)
Non-vested and outstanding	14,161,913
Expected to vest	11,593,513
Weighted-Average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Outstanding, Beginning Balance, usd per share | $ / shares	$ 63.38
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares	51.11
Weighted-Average Grant Date Fair Value, Vested, usd per share | $ / shares	58.42
Weighted-Average Grant Date Fair Value, Repurchased, usd per share | $ / shares	64.43
Weighted-Average Grant Date Fair Value, Outstanding, Ending Balance, usd per share | $ / shares	$ 60.64
Aggregate Intrinsic Value, vested | $	$ 89,516
Aggregate Intrinsic Value, Non-vested | $	866,426
Aggregated Intrinsic Value, Expected to vest | $	$ 709,291

Net Loss Per Share - Calculatio

Net Loss Per Share - Calculation of Basic and Diluted Net Income (Loss) Per Share Attributable to Common Stockholders (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Numerator:
Net loss	$ (333,332)	$ (58,093)
Denominator:
Weighted-average shares used to compute net loss per share - basic and diluted	162,067,108	151,601,880
Net loss per share attributable to common stockholders:
Earnings Per Share, Basic and Diluted (in USD per share)	$ (2.06)	$ (0.38)

Net Loss Per Share- Summary of

Net Loss Per Share- Summary of Potentially Dilutive Securities (Detail) - shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities	37,739,363	42,824,922
Common stock options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities	7,718,715	13,506,834
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities	14,161,913	13,539,235
Common stock subject to repurchase [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities	0	3,794
ESPP obligations [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities	292,689	209,013
Convertible Notes Payable [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities	7,783,023	7,783,023
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive securities	7,783,023	7,783,023

Income Taxes (Details)

Income Taxes (Details)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Effective income tax rate	(1.00%)	(2.00%)
Federal statutory rate	34.00%	34.00%

Commitments and Contingencies -

Commitments and Contingencies - (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Legal settlement	$ 270,000	$ 0
Accrued legal settlement expenses (1)	$ 250,000		$ 0

Information about Geographic 55

Information about Geographic Areas and Products - Revenues by Geographic Area, Based on Billing Location of Customer (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Percentage of U.S. Revenues in North America		95.00%	94.00%
Revenues by geography
Revenues		$ 305,879	$ 211,964
Percentage of U.S. long-lived assets in North America		98.00%		98.00%
North America [Member]
Revenues by geography
Revenues	[1]	$ 210,517	148,646
EMEA [Member]
Revenues by geography
Revenues	[2]	74,281	48,530
Asia Pacific and other [Member]
Revenues by geography
Revenues		$ 21,081	$ 14,788
[1]	Revenues attributed to the United States were approximately 95% and 94% of North America revenues for the three months ended March 31, 2016 and 2015, respectively.
[2]	Europe, the Middle East and Africa

Information about Geographic 56

Information about Geographic Areas and Products - Long Lived Assets (Details) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Long-Lived Assets		$ 154,244	$ 144,714
North America [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets	[1]	110,011	104,085
EMEA [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets	[2]	32,174	32,027
Asia Pacific and other [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets		$ 12,059	$ 8,602
[1]	Long-lived assets attributed to the United States were approximately 98% of North America long-lived assets as of March 31, 2016 and December 31, 2015.
[2]	Europe, the Middle East and Africa

Information about Geographic 57

Information about Geographic Areas and Products - Subscription Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Enterprise Service Management solutions	$ 245,862	$ 167,204
IT Operations Management solutions	21,560	12,703
Subscription	$ 267,422	$ 179,907

Subsequent Events (Details)

Subsequent Events (Details) $ in Millions	Apr. 08, 2016USD ($)
ITapp [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Payments to Acquire Businesses, Gross	$ 15