Rapid7 (RPD) 10-Q 5 Nov 19 2019 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2019	Oct. 31, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
Document Transition Report	false
Entity File Number	001-37496
Entity Registrant Name	RAPID7, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	35-2423994
Entity Address, Address Line One	120 Causeway Street
Entity Address, City or Town	Boston,
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02114
City Area Code	617
Local Phone Number	247-1717
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	RPD
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		49,384,711
Entity Central Index Key	0001560327
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Amendment Flag	false

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 114,925	$ 99,565
Short-term investments	131,815	159,210
Accounts receivable, net of allowance for doubtful accounts of $1,897 and $1,624 at September 30, 2019 and December 31, 2018, respectively	62,422	74,935
Deferred contract acquisition and fulfillment costs, current portion	14,905	12,321
Prepaid expenses and other current assets	15,827	9,746
Total current assets	339,894	355,777
Long-term investments	10,997	44,892
Property and equipment, net	51,519	17,523
Operating lease right-of-use assets	61,217	0
Deferred contract acquisition and fulfillment costs, non-current portion	30,452	27,634
Goodwill	97,866	88,420
Intangible assets, net	29,183	23,955
Other assets	5,466	1,168
Total assets	626,594	559,369
Current liabilities:
Accounts payable	6,549	7,048
Accrued expenses	33,174	37,376
Operating lease liabilities, current portion	6,460	0
Deferred revenue, current portion	200,314	189,855
Other current liabilities	285	707
Total current liabilities	246,782	234,986
Convertible senior notes, net	182,471	174,688
Operating lease liabilities, non-current portion	73,266	0
Deferred revenue, non-current portion	36,620	58,716
Other long-term liabilities	1,280	3,660
Total liabilities	540,419	472,050
Stockholders’ equity:
Preferred stock, $0.01 par value per share; 10,000,000 shares authorized at September 30, 2019 and December 31, 2018; 0 shares issued at September 30, 2019 and December 31, 2018	0	0
Common stock, $0.01 par value per share; 100,000,000 shares authorized at September 30, 2019 and December 31, 2018; 49,790,219 and 48,087,257 shares issued at September 30, 2019 and December 31, 2018, respectively; 49,303,411 and 47,600,449 shares outstanding at September 30, 2019 and December 31, 2018, respectively	493	476
Treasury stock, at cost, 486,808 shares at September 30, 2019 and December 31, 2018	(4,764)	(4,764)
Additional paid-in-capital	594,226	556,223
Accumulated other comprehensive income (loss)	304	(31)
Accumulated deficit	(504,084)	(464,585)
Total stockholders’ equity	86,175	87,319
Total liabilities and stockholders’ equity	$ 626,594	$ 559,369

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Net of allowance for doubtful accounts	$ 1,897	$ 1,624
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	49,790,219	48,087,257
Common stock, shares outstanding (in shares)	49,303,411	47,600,449
Treasury stock, shares (in shares)	486,808	486,808

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue:
Total revenue	$ 83,155	$ 62,365	$ 235,299	$ 175,321
Cost of revenue:
Total cost of revenue	23,630	17,810	65,784	51,797
Total gross profit	59,525	44,555	169,515	123,524
Operating expenses:
Research and development	20,154	17,111	57,645	49,915
Sales and marketing	39,904	30,570	113,214	90,779
General and administrative	11,223	8,175	32,336	25,056
Total operating expenses	71,281	55,856	203,195	165,750
Loss from operations	(11,756)	(11,301)	(33,680)	(42,226)
Other income (expense), net:
Interest income	1,448	813	4,761	1,520
Interest expense	(3,399)	(1,679)	(9,940)	(1,681)
Other income (expense), net	(492)	181	(727)	(67)
Loss before income taxes	(14,199)	(11,986)	(39,586)	(42,454)
Provision for (benefit from) income taxes	207	(155)	(87)	71
Net loss	$ (14,406)	$ (11,831)	$ (39,499)	$ (42,525)
Net loss per share, basic and diluted (in dollars per share)	$ (0.29)	$ (0.25)	$ (0.82)	$ (0.92)
Weighted-average common shares outstanding, basic and diluted (in shares)	49,020,449	46,914,077	48,437,686	46,139,978
Products [Member]
Revenue:
Total revenue	$ 67,298	$ 43,829	$ 186,793	$ 118,151
Cost of revenue:
Total cost of revenue	15,627	10,294	42,668	28,380
Maintenance and Support [Member]
Revenue:
Total revenue	9,178	10,614	28,107	31,977
Cost of revenue:
Total cost of revenue	2,076	1,901	6,041	5,757
Professional Services [Member]
Revenue:
Total revenue	6,679	7,922	20,399	25,193
Cost of revenue:
Total cost of revenue	$ 5,927	$ 5,615	$ 17,075	$ 17,660

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ (14,406)	$ (11,831)	$ (39,499)	$ (42,525)
Other comprehensive income (loss):
Change in fair value of investments	(47)	(120)	335	(105)
Total change in unrealized gain on investments	(47)	(120)	335	(105)
Comprehensive loss	$ (14,453)	$ (11,951)	$ (39,164)	$ (42,630)

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Gain (Loss) [Member]	Accumulated Deficit [Member]
Beginning balance (in shares) at Dec. 31, 2017		44,054	487
Beginning balance at Dec. 31, 2017	$ 24,153	$ 441	$ (4,764)	$ 463,428	$ (39)	$ (434,913)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	20,999			20,999
Equity component of convertible senior notes, net	52,198			52,198
Purchase of capped calls related to convertible senior notes	(26,910)			(26,910)
Issuance of common stock related to follow-on public offering (in shares)		1,500
Issuance of common stock related to follow-on public offering	30,907	$ 15		30,892
Issuance of common stock under employee stock purchase plan (in shares)		220
Issuance of common stock under employee stock purchase plan	3,637	$ 2		3,635
Vesting of restricted stock units (in shares)		731
Vesting of restricted stock units	0	$ 7		(7)
Forfeiture of restricted stock awards (in shares)		(3)
Forfeiture of restricted stock awards	0
Shares withheld for employee taxes (in shares)		(64)
Shares withheld for employee taxes	(1,712)	$ (1)		(1,711)
Issuance of common stock upon exercise of stock options (in shares)		849
Issuance of common stock upon exercise of stock options	6,586	$ 9		6,577
Net unrealized gain (loss) on investments	(105)				(105)
Net loss	(42,525)					(42,525)
Ending balance (in shares) at Sep. 30, 2018		47,287	487
Ending balance at Sep. 30, 2018	93,101	$ 473	$ (4,764)	549,101	(144)	(451,565)
Beginning balance (in shares) at Jun. 30, 2018		46,739	487
Beginning balance at Jun. 30, 2018	69,543	$ 467	$ (4,764)	513,598	(24)	(439,734)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	7,424			7,424
Equity component of convertible senior notes, net	52,198			52,198
Purchase of capped calls related to convertible senior notes	(26,910)			(26,910)
Issuance of common stock under employee stock purchase plan (in shares)		96
Issuance of common stock under employee stock purchase plan	2,005	$ 1		2,004
Vesting of restricted stock units (in shares)		306
Vesting of restricted stock units	0	$ 3		(3)
Shares withheld for employee taxes (in shares)		(22)
Shares withheld for employee taxes	(707)			(707)
Issuance of common stock upon exercise of stock options (in shares)		168
Issuance of common stock upon exercise of stock options	1,499	$ 2		1,497
Net unrealized gain (loss) on investments	(120)				(120)
Net loss	(11,831)					(11,831)
Ending balance (in shares) at Sep. 30, 2018		47,287	487
Ending balance at Sep. 30, 2018	93,101	$ 473	$ (4,764)	549,101	(144)	(451,565)
Beginning balance (in shares) at Dec. 31, 2018		47,600	487
Beginning balance at Dec. 31, 2018	87,319	$ 476	$ (4,764)	556,223	(31)	(464,585)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	29,490			29,490
Issuance of common stock under employee stock purchase plan (in shares)		185
Issuance of common stock under employee stock purchase plan	5,521	$ 2		5,519
Vesting of restricted stock units (in shares)		914
Vesting of restricted stock units	0	$ 9		(9)
Shares withheld for employee taxes (in shares)		(96)
Shares withheld for employee taxes	(4,926)	$ (1)		(4,925)
Issuance of common stock upon exercise of stock options (in shares)		700
Issuance of common stock upon exercise of stock options	7,935	$ 7		7,928
Net unrealized gain (loss) on investments	335				335
Net loss	(39,499)					(39,499)
Ending balance (in shares) at Sep. 30, 2019		49,303	487
Ending balance at Sep. 30, 2019	86,175	$ 493	$ (4,764)	594,226	304	(504,084)
Beginning balance (in shares) at Jun. 30, 2019		48,798	487
Beginning balance at Jun. 30, 2019	87,524	$ 488	$ (4,764)	581,127	351	(489,678)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	10,426			10,426
Issuance of common stock under employee stock purchase plan (in shares)		74
Issuance of common stock under employee stock purchase plan	2,887	$ 1		2,886
Vesting of restricted stock units (in shares)		319
Vesting of restricted stock units	0	$ 3		(3)
Shares withheld for employee taxes (in shares)		(38)
Shares withheld for employee taxes	(2,087)	$ 0		(2,087)
Issuance of common stock upon exercise of stock options (in shares)		150
Issuance of common stock upon exercise of stock options	1,878	$ 1		1,877
Net unrealized gain (loss) on investments	(47)				(47)
Net loss	(14,406)					(14,406)
Ending balance (in shares) at Sep. 30, 2019		49,303	487
Ending balance at Sep. 30, 2019	$ 86,175	$ 493	$ (4,764)	$ 594,226	$ 304	$ (504,084)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net loss	$ (39,499)	$ (42,525)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	11,969	7,737
Amortization of debt discount and issuance costs	7,783	1,296
Stock-based compensation expense	29,490	20,999
Provision for doubtful accounts	1,782	480
Deferred income taxes	(761)	0
Foreign currency re-measurement loss	570	566
Other non-cash (income) expense	(1,635)	(345)
Changes in operating assets and liabilities:
Accounts receivable	10,860	19,287
Deferred contract acquisition and fulfillment costs	(5,403)	(6,385)
Prepaid expenses and other assets	(9,878)	(2,434)
Accounts payable	1,132	565
Accrued expenses	(4,822)	(2,174)
Deferred revenue	(12,124)	(2,313)
Other liabilities	1,292	(622)
Net cash used in operating activities	(9,244)	(5,868)
Cash flows from investing activities:
Business acquisition, net of cash acquired	(14,607)	0
Purchases of property and equipment	(27,053)	(8,404)
Capitalization of internal-use software costs	(4,686)	(2,505)
Purchases of investments	(114,208)	(178,945)
Sales/maturities of investments	177,287	39,576
Net cash provided by (used in) investing activities	16,733	(150,278)
Cash flows from financing activities:
Proceeds from issuance of convertible senior notes, net of issuance costs	0	223,529
Purchase of capped calls related to convertible senior notes	0	(26,910)
Proceeds from follow-on public offering, net of offering costs	0	30,907
Taxes paid related to net share settlement of equity awards	(4,926)	(1,712)
Proceeds from employee stock purchase plan	5,521	3,637
Proceeds from stock option exercises	7,924	6,521
Net cash provided by financing activities	8,519	235,972
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(648)	(428)
Net increase in cash, cash equivalents and restricted cash	15,360	79,398
Cash, cash equivalents and restricted cash, beginning of period	99,565	51,762
Cash, cash equivalents and restricted cash, end of period	114,925	131,160
Supplemental cash flow information:
Cash paid for interest on convertible senior notes	2,779	0
Cash paid for income taxes, net of refunds	404	223
Non-cash investing activities:
Leasehold improvements acquired through tenant improvement allowance	14,016	0
Non-cash financing activities:
Convertible senior notes issuance costs incurred but not paid	$ 0	$ 462

Description of Business, Basis

Description of Business, Basis of Presentation and Consolidation and Significant Accounting Policies	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Description of Business, Basis of Presentation and Consolidation and Significant Accounting Policies	Description of Business, Basis of Presentation and Consolidation and Significant Accounting Policies Description of Business Rapid7, Inc. and subsidiaries (we, us or our) is advancing security with visibility, analytics, and automation delivered through our Insight cloud. Our solutions simplify the complex, allowing security teams to work more effectively with IT and development to reduce vulnerabilities, monitor for malicious behavior, investigate and shut down attacks, and automate routine tasks. Basis of Presentation and Consolidation The accompanying unaudited consolidated financial statements have been prepared by us in accordance with accounting principles generally accepted in the United States of America (GAAP), as well as pursuant to the rules and regulations of the Securities and Exchange Commission (SEC), regarding interim financial reporting. Accordingly, certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2018 filed with the SEC on February 28, 2019. The consolidated financial statements include our results of operations and those of our wholly-owned subsidiaries and reflect all adjustments (consisting solely of normal, recurring adjustments) which are, in the opinion of management, necessary for a fair statement of results for the interim periods presented. All intercompany transactions and balances have been eliminated in consolidation. The results of operations for the three and nine months ended September 30, 2019 are not necessarily indicative of the results to be expected for any future period or the entire fiscal year. Significant Accounting Policies Our significant accounting policies are described in Note 2, Summary of Significant Accounting Policies , to the consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2018 . There have been no material changes to the significant accounting policies during the three and nine-month periods ended September 30, 2019 other than those noted below. Leases Effective January 1, 2019, we adopted Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2016-02, Leases (Topic 842), as amended Accounting Standard Codification (ASC) 842. In accordance with ASC 842, at the inception of an arrangement, we determine whether the arrangement is or contains a lease based on the unique facts and circumstances present and the classification of the lease. Most leases with a term greater than one year are recognized on the balance sheet as right-of-use (ROU) assets, lease liabilities and, if applicable, long-term lease liabilities. We have elected not to recognize on the balance sheet leases with terms of one year or less. For contracts with lease and non-lease components, we have elected not to allocate the contract consideration and to account for the lease and non-lease components as a single lease component. Lease liabilities and their corresponding ROU assets are recorded based on the present value of lease payments over the expected lease term. The implicit rate within our operating leases are generally not determinable and therefore we use the incremental borrowing rate at the lease commencement date to determine the present value of lease payments. The determination of our incremental borrowing rate requires judgment. We determine our incremental borrowing rate for each lease using our estimated borrowing rate, adjusted for various factors including level of collateralization, term and currency to align with the terms of the lease. The operating lease ROU asset also includes any lease prepayments, offset by lease incentives. Certain of our leases include options to extend or terminate the lease. An option to extend the lease is considered in connection with determining the ROU asset and lease liability when it is reasonably certain we will exercise that option. An option to terminate is considered unless it is reasonably certain we will not exercise the option. For periods prior to the adoption of ASC 842, we recorded rent expense on a straight-line basis over the term of the related lease. The difference between the straight-line rent expense and the payments made in accordance with the operating lease agreements were recognized as a deferred rent liability on the accompanying consolidated balance sheets. Recent Accounting Pronouncements Accounting Pronouncements Recently Adopted In February 2016, the FASB issued ASU 2016-02, Leases , which requires companies to recognize on the balance sheet the assets and liabilities for the rights and obligations created by the leased asset. The standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. We adopted this standard effective January 1, 2019 using the modified retrospective approach for all leases entered into before the effective date. We also elected to implement the new standard at the adoption date with a cumulative-effect adjustment, if any, recognized to the opening balance of accumulative deficit in the period of adoption. For comparability purposes, we will continue to comply with the previous disclosure requirements in accordance with the existing lease guidance for all periods presented in the year of adoption. We elected the package of practical expedients as permitted under the transition guidance, which allowed us: (1) to carry forward the historical lease classification; (2) not to reassess whether expired or existing contracts are or contain leases; and, (3) not to reassess the treatment of initial direct costs for existing leases. In addition, we elected an accounting policy to not recognize leases with an initial term of one year or less on the balance sheet. Upon the adoption of this standard on January 1, 2019, we recognized a total lease liability of $21.3 million , representing the present value of the minimum rental payments remaining as of the adoption date and a right-of-use asset in the amount of $15.4 million . We did not have any finance leases (formerly referred to as capital leases prior to the adoption of ASC 842), therefore there was no change in accounting treatment required. Accounting Pronouncements Not Yet Effective In August 2018, the FASB issued Accounting Standards Update (ASU) 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract, which aligns the requirements for capitalizing implementation costs in cloud computing arrangements with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The new standard will be effective for us in the first quarter of 2020. Entities can choose to adopt the new guidance prospectively or retrospectively. We plan to adopt this standard using the prospective adoption approach, however we are currently in the process of evaluating the effects of this pronouncement on our consolidated financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement, which eliminates, modifies and adds disclosure requirements for fair value measurements. The new standard will be effective for us in the first quarter of 2020. We do not expect this ASU to have a material impact on our consolidated financial statements.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Revenue from Contracts with Customers We generate products revenue from the sale of (1) cloud-based subscriptions for our InsightIDR, InsightVM, InsightAppSec and InsightConnect products, (2) managed services offerings, which utilize our products and (3) term or perpetual software licenses for our Nexpose, Metasploit, and AppSpider products, and associated content subscriptions for our Nexpose and Metasploit products. We also generate appliance revenue that is included in our products revenue and is associated with hardware sold with our Nexpose product to certain customers. We generate maintenance and support revenue associated with customers’ purchases of our software licenses for Nexpose, Metasploit and AppSpider. We generate professional service revenue from the sale of our deployment and training services related to our solutions, incident response services, penetration testing and security advisory services. Our deployment services educate and assist our customers on the best use and best practices to deploy our solutions. In accordance with FASB ASU 2014-09, Revenue from Contracts with Customers (Topic 606) (ASC 606), revenue is recognized when a customer obtains control of promised products or services. The amount of revenue recognized reflects the consideration that we expect to be entitled to receive in exchange for these products or services. To achieve the core principle of this standard, we apply the following five steps: 1) Identify the contract with a customer We consider the terms and conditions of the contracts and our customary business practices in identifying our contracts under ASC 606. We determine we have a contract with a customer when the contract is approved, we can identify each party’s rights regarding the services to be transferred, we can identify the payment terms for the services, and we have determined the customer has the ability and intent to pay and the contract has commercial substance. We apply judgment in determining the customer’s ability and intent to pay, which is based on a variety of factors, including the customer’s historical payment experience or, in the case of a new customer, credit and financial information pertaining to the customer. 2) Identify the performance obligations in the contract Performance obligations promised in a contract are identified based on the products and services that will be transferred to the customer that are both capable of being distinct, whereby the customer can benefit from the product or service either on its own or together with other resources that are readily available from third parties or from us, and are distinct in the context of the contract, whereby the transfer of the products or services is separately identifiable from other promises in the contract. 3) Determine the transaction price The transaction price is determined based on the consideration to which we expect to be entitled in exchange for transferring products or services to the customer. Variable consideration is included in the transaction price if, in our judgment, it is probable that no significant future reversal of cumulative revenue under the contract will occur. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined our contracts generally do not include a significant financing component. The primary purpose of our invoicing terms is to provide customers with simplified and predictable ways of purchasing our products and services, not to receive financing from our customers or to provide customers with financing. Examples include invoicing at the beginning of a subscription term with revenue recognized ratably over the contract period. 4) Allocate the transaction price to performance obligations in the contract If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. Contracts that contain multiple performance obligations require an allocation of the transaction price to each performance obligation based on a relative standalone selling price (SSP). 5) Recognize revenue when or as we satisfy a performance obligation Revenue is recognized at the time the related performance obligation is satisfied by transferring the promised product or service to a customer. Revenue is recognized when control of the products or services are transferred to our customers, in an amount that reflects the consideration that we expect to receive in exchange for those products or services. The following table summarizes revenue from contracts with customers for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 (in thousands) Subscription revenue $ 57,885 $ 35,860 $ 157,163 $ 95,990 Term and perpetual software licenses 9,160 7,461 28,151 19,717 Maintenance and support 9,178 10,614 28,107 31,977 Professional services 6,679 7,922 20,399 25,193 Other 253 508 1,479 2,444 Total revenue $ 83,155 $ 62,365 $ 235,299 $ 175,321 The following table summarizes the revenue by region based on the shipping address of customers who have contracted to use our products or services for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 (in thousands) United States $ 67,434 $ 51,341 $ 191,480 $ 143,372 All other 15,721 11,024 43,819 31,949 Total revenue $ 83,155 $ 62,365 $ 235,299 $ 175,321 Subscription Revenue Subscription revenue consists of revenue from our cloud-based subscription, managed services offerings and content subscriptions associated with our software licenses. • We generate cloud-based subscription revenue primarily from sales of subscriptions to access our cloud platform, together with related support services to our customers. These arrangements do not provide the customer with the right to take possession of our software operating on our cloud platform at any time. Instead, customers are granted continuous access to our cloud platform over the contractual period. Revenue is recognized over time on a ratable basis over the contract term beginning on the date that our service is made available to the customer. Our cloud-based subscription contracts generally have a term of one year , which is billed in advance and non-cancellable. • Managed services offerings consist of fees generated when we operate our software and provide our capabilities on behalf of our customers. Revenue is recognized on a ratable basis over the contract term beginning on the date that our service is made available to the customer. Our managed services offerings generally have a term of one year , which is billed in advance and non-cancellable. • Revenue related to our content subscriptions associated with our software licenses is recognized ratably over the contractual period. • Some of our customers have the option to purchase additional subscription and support services at a stated price. These options generally do not provide a material right as they are priced at our SSP. Certain subscription contracts contain service level commitments, which entitle our customers to receive service credits and, in certain cases, refunds, if our services do not meet certain levels. These service credits and refunds represent variable consideration. We have historically not experienced any significant incidents affecting the defined levels of reliability and performance as required by our subscription contracts and accordingly, no estimated refunds have been considered in the allocation of the transaction price. Term and Perpetual Software Licenses For our perpetual software licenses where the utility to the customer is dependent on the continued delivery of content subscriptions, the content subscription renewal options result in a material right with respect to the perpetual software license. As a result, the revenue attributable to the perpetual software license is recognized ratably over the customer’s estimated economic life of five years, which represents a longer period of time in comparison to the initial contractual period of maintenance and support. The estimated economic life of five years represents the period which the customer is expected to benefit from the material right. We estimated this period of benefit by taking into consideration several factors, including the terms and conditions of our customer contracts and renewals and the expected useful life of our technology. For our term software licenses where the utility to the customer is dependent on the continued delivery of content subscriptions, we recognize the license revenue over the contractual term of the arrangement as a material right does not exist. For our term and perpetual software licenses, which are not dependent on the continued delivery of content subscriptions, the license is considered distinct from the maintenance and support, and we therefore recognize revenue attributable to the license at the time of delivery. Maintenance and Support Maintenance and support services are sold with our perpetual and term software licenses. As maintenance and support services are distinct from the perpetual and term software license, revenue attributable to maintenance and support services is recognized ratably over the contractual period. Professional Services All of our professional services are considered distinct performance obligations when sold stand alone or with other products. These contracts generally have terms of one year or less. For the majority of these contracts, revenue is recognized over time based upon the proportion of work performed to date. Other Other revenue primarily includes revenue from delivery of appliances and other miscellaneous revenue. Contracts with Multiple Performance Obligations The majority of our contracts with customers contain multiple performance obligations. For these contracts, we account for individual performance obligations separately if they are considered distinct. The transaction price is allocated to the separate performance obligations on a relative SSP basis. We determine SSP based on our overall pricing objectives, taking into consideration market conditions and other factors, including the geographic locations of our customers and selling method (i.e., partner or direct). Contract Balances Contract liabilities consist of deferred revenue and include payments received in advance of performance under the contract. Such amounts are recognized as revenue over the contractual period consistent with the above methodology. For the three months ended September 30, 2019 and 2018 , we recognized revenue of $72.7 million and $53.1 million , respectively, and for the nine months ended September 30, 2019 and 2018 , we recognized $158.7 million and $113.1 million , respectively, that was included in the corresponding contract liability balance at the beginning of the periods presented. Deferred revenue that will be realized during the succeeding 12-month period is recorded as current, and the remaining deferred revenue is recorded as non-current. We receive payments from customers based upon contractual billing schedules. Accounts receivable are recorded when the right to consideration becomes unconditional. Contract assets, or unbilled receivables, include amounts related to our contractual right to consideration for both completed and partially completed performance obligations that may not have been invoiced. As of September 30, 2019 and December 31, 2018 , contract assets of $0.5 million and $0.8 million , respectively, are included in prepaid expenses and other current assets in our consolidated balance sheet. Deferred Contract Acquisition and Fulfillment Costs We capitalize commission expenses paid to internal sales personnel and partner referral fees that are incremental costs to obtaining customer contracts. These costs are recorded as deferred contract acquisition costs in the consolidated balance sheets. Costs to obtain a contract for a new customer, up-sell or cross-sell are amortized on a straight-line basis over an estimated period of benefit of five years as sales commissions on initial sales are not commensurate with sales commissions on contract renewals. We determined the estimated period of benefit by taking into consideration the contractual term and expected renewals of customer contracts, our technology and other factors, including the fact that commissions paid on renewals are not commensurate with commissions paid on initial sales transactions. We periodically review the carrying amount of deferred contract acquisition costs to determine whether events or changes in circumstances have occurred that could impact the period of benefit. Commissions paid relating to contract renewals are deferred and amortized on a straight-line basis over the related renewal period. Costs to obtain a contract for professional services arrangements are expensed as incurred in accordance with the practical expedient as the contractual period of our professional services arrangements are one year or less. Amortization expense associated with deferred contract acquisition costs is recorded to sales and marketing expense in our consolidated statements of operations. We capitalize costs incurred to fulfill our contracts that relate directly to the contract, are expected to generate resources that will be used to satisfy our performance obligations and are expected to be recovered through revenue generated under the contract. Contract fulfillment costs are amortized on a straight-line basis over the estimated period of benefit and recorded as cost of products in our consolidated statement of operations. The following table summarizes the activity of the deferred contract acquisition and fulfillment costs for the nine months ended September 30, 2019 and 2018 : Nine Months Ended September 30, 2019 2018 (in thousands) Beginning balance $ 39,955 $ 27,165 Capitalization of contract acquisition and fulfillment costs 16,084 13,391 Amortization of deferred contract acquisition and fulfillment costs (10,682 ) (7,006 ) Ending balance $ 45,357 $ 33,550 Transaction price allocated to the remaining performance obligations The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied or partially unsatisfied as of September 30, 2019 . The estimated revenues do not include unexercised contract renewals. Remainder of 2019 2020 2021 and thereafter (in thousands) Subscription revenue $ 56,250 $ 101,394 $ 19,115 Term and perpetual software licenses 8,460 20,335 13,868 Maintenance and support 8,172 14,678 2,488 The amounts presented in the table above primarily consist of fixed fees, which are typically recognized ratably as the performance obligation is satisfied. As of September 30, 2019 , the estimated revenue expected to be recognized in the future related to professional services is $12.0 million

Business Combination

Business Combination	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Business Combination	Business Combination On April 1, 2019, we acquired NetFort Technologies Limited (NetFort), a provider of end-to-end network traffic visibility and analytics across cloud, virtual and physical platforms for a purchase price of $16.1 million . The $16.1 million purchase price was funded with cash. In the nine months ended September 30, 2019 , we recorded $0.5 million of acquisition related costs in general and administrative expense. The following table summarizes the preliminary allocation of purchase price to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date (in thousands): Purchase price $ 16,130 Recognized amount of identifiable assets acquired and liabilities assumed: Cash and cash equivalents $ 1,523 Other net working capital 325 Deferred revenue (487 ) Deferred tax liability (761 ) Intangible asset 6,084 Total identifiable net assets assumed 6,684 Goodwill 9,446 Total purchase price allocation $ 16,130 The fair value of identifiable intangible assets was based on valuations using the income approach. The estimated fair value and useful life of identifiable intangible assets are as follows: Amount Weighted Average Amortization Life (years) (in thousands) Developed technology $ 6,084 5 The excess of the purchase price over the tangible assets acquired, identifiable intangible asset acquired and assumed liabilities was recorded as goodwill. We believe that the amount of goodwill reflects the expected synergistic benefits of being able to leverage the integration of the technology acquired with our existing product offerings and to be able to successfully market and sell these new products and features to our customer base. The goodwill was allocated to our one reporting unit. The acquired goodwill and intangible asset will not be deductible for tax purposes. Accordingly, a $0.8 million deferred tax benefit was recorded resulting from a partial release of our valuation allowance to account for the creation of a deferred tax liability for the developed technology intangible asset acquired. These preliminary amounts are subject to subsequent adjustment as we obtain additional information to finalize certain components of working capital. Following the acquisition, certain retained employees and non-employee contractors of NetFort received an aggregate of 123,623 restricted stock units (RSUs), which will vest over a maximum of three years . The vesting of the RSUs are subject to the employee's continued service with us. Accordingly, compensation expense associated with the RSUs will be expensed as incurred in our post-acquisition financial statements. Proforma results of operations have not been included, as the acquisition of NetFort was not material to our results of operations for any periods presented.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements We measure certain financial assets and liabilities at fair value. Fair value is determined based upon the exit price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants, as determined by either the principal market or the most advantageous market. Inputs used in the valuation techniques to derive fair values are classified based on a three-level hierarchy, as follows: Level 1 : Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2 : Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets with insufficient volume or infrequent transactions (less active markets); or model-derived valuations in which all significant inputs are observable or can be derived principally from or corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 : Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the asset or liability. We consider an active market to be one in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis, and we consider an inactive market to be one in which there are infrequent or few transactions for the asset or liability, the prices are not current, or price quotations vary substantially either over time or among market makers. The following table presents our financial assets measured and recorded at fair value on a recurring basis using the above input categories: As of September 30, 2019 Level 1 Level 2 Level 3 Total (in thousands) Description: Assets: Money market funds $ 94,929 $ — $ — $ 94,929 U.S. government agencies 41,414 — — 41,414 Commercial paper — 22,795 — 22,795 Corporate bonds — 53,377 — 53,377 Agency bonds — 16,731 — 16,731 Asset-backed securities — 8,495 — 8,495 Total assets $ 136,343 $ 101,398 $ — $ 237,741 As of December 31, 2018 Level 1 Level 2 Level 3 Total (in thousands) Description: Assets: Money market funds $ 55,646 $ — $ — $ 55,646 U.S. government agencies 74,481 — — 74,481 Commercial paper — 57,554 — 57,554 Corporate bonds — 48,495 — 48,495 Agency bonds — 19,087 — 19,087 Asset-backed securities — 7,483 — 7,483 Total assets $ 130,127 $ 132,619 $ — $ 262,746 As of September 30, 2019 , the fair value of our 1.25% convertible senior notes due 2023, as further described in Note 7, Convertible Senior Notes and Capped Calls , was $298.1 million based upon quoted market prices. We consider the fair value of the Notes to be a Level 2 measurement due to limited trading activity of the Notes. We had no other liabilities measured and recorded at fair value on a recurring basis as of September 30, 2019 or December 31, 2018 . Our investments, which are all classified as available-for-sale, consisted of the following: As of September 30, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (in thousands) Description: U.S. government agencies $ 41,296 $ 118 $ — $ 41,414 Commercial paper 22,794 1 — 22,795 Corporate bonds 53,254 123 — 53,377 Agency bonds 16,673 58 — 16,731 Asset-backed securities 8,491 5 (1 ) 8,495 Total assets $ 142,508 $ 305 $ (1 ) $ 142,812 As of December 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (in thousands) Description: U.S. government agencies $ 71,480 $ 20 $ (17 ) $ 71,483 Commercial paper 57,554 — — 57,554 Corporate bonds 48,532 15 (52 ) 48,495 Agency bonds 19,077 16 (6 ) 19,087 Asset-backed securities 7,490 — (7 ) 7,483 Total assets $ 204,133 $ 51 $ (82 ) $ 204,102 As of September 30, 2019 , our available-for-sale investments had maturities ranging from two to fifteen months . As of December 31, 2018 , our available-for-sale investments had maturities ranging from three months to two years . Our available-for-sale investments as of December 31, 2018 included $3.0 million of U.S. Government agencies investments, which are classified as cash and cash equivalents as the original maturity was less than three months. For all of our investments for which the amortized cost basis was greater than the fair value at September 30, 2019 and December 31, 2018

Property and Equipment

Property and Equipment	9 Months Ended
	Sep. 30, 2019
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment Property and equipment are recorded at cost and consist of the following: As of As of (in thousands) Computer equipment and software $ 12,274 $ 18,724 Furniture and fixtures (1) 7,068 5,580 Leasehold improvements (1) 43,805 19,437 Total 63,147 43,741 Less accumulated depreciation (11,628 ) (26,218 ) Property and equipment, net $ 51,519 $ 17,523 (1) As of September 30, 2019 , $29.4 million and $3.9 million of leasehold improvements and furniture and fixtures, respectively, related to our new Boston, Massachusetts corporate headquarters which was completed in July 2019. As of December 31, 2018 , leasehold improvements included $3.8 million of construction-in progress related to our new corporate headquarters facility. In the nine months ended September 30, 2019 , we disposed of $9.1 million , $8.6 million and $3.3 million of computer equipment and software, leasehold improvements and furniture and fixtures, respectively, of fully depreciated assets which were no longer in use. Depreciation expense was $2.5 million and $1.6 million for the three months ended September 30, 2019 and 2018 , respectively, and $6.4 million and $4.6 million for the nine months ended September 30, 2019 and 2018 , respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill was $97.9 million and $88.4 million as of September 30, 2019 and December 31, 2018 , respectively. The following table displays the changes in goodwill: Amount (in thousands) Balance at December 31, 2018 $ 88,420 NetFort acquisition 9,446 Balance at September 30, 2019 $ 97,866 The following table presents details of our intangible assets, which include acquired identifiable intangible assets and capitalized internal-use software costs: As of September 30, 2019 As of December 31, 2018 Weighted- Average Life (years) Gross Carrying Amount Accumulated Amortization Net Book Value Gross Carrying Amount Accumulated Amortization Net Book Value (in thousands) Intangible assets subject to amortization: Developed technology 5.4 $ 35,855 $ (14,422 ) $ 21,433 $ 29,771 $ (9,741 ) $ 20,030 Customer relationships 6.7 1,000 (609 ) 391 1,000 (504 ) 496 Trade names 6.1 519 (519 ) — 519 (516 ) 3 Non-compete agreements 2.0 40 (40 ) — 40 (40 ) — Total acquired intangible assets 37,414 (15,590 ) 21,824 31,330 (10,801 ) 20,529 Internal-use software 8,472 (1,113 ) 7,359 3,786 (360 ) 3,426 Total intangible assets $ 45,886 $ (16,703 ) $ 29,183 $ 35,116 $ (11,161 ) $ 23,955 Amortization expense was $2.1 million and $1.1 million for the three months ended September 30, 2019 and 2018 , respectively, and $5.5 million and $3.1 million for the nine months ended September 30, 2019 and 2018 , respectively. Estimated future amortization expense of the acquired identifiable intangible assets and completed capitalized internal-use software costs as of September 30, 2019 was as follows (in thousands): 2019 (for the remaining three months) $ 2,117 2020 8,431 2021 7,636 2022 4,671 2023 2,667 2024 and thereafter 304 Total $ 25,826 The table above excludes the impact of $3.4 million of capitalized internal-use software costs for projects that have not been completed as of September 30, 2019

Convertible Senior Notes and Ca

Convertible Senior Notes and Capped Calls	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Convertible Senior Notes and Capped Calls	Convertible Senior Notes and Capped Calls In August 2018, we issued $200.0 million aggregate principal amount of convertible senior notes due August 1, 2023 and an additional $30.0 million aggregate principal amount of such notes pursuant to the exercise in full of the over-allotment options of the initial purchasers (collectively, the Notes). The Notes are our senior unsecured obligations and bear interest at a fixed rate of 1.25% per annum, payable semi-annually in arrears on February 1 and August 1 of each year, commencing on February 1, 2019. The Notes will mature on August 1, 2023, unless earlier converted, redeemed or repurchased. The Notes do not contain any financial covenants. The total net proceeds from the Notes offering, after deducting initial purchase discounts and estimated debt issuance costs was $223.1 million . The Notes are governed by an indenture between the Company, as issuer, and U.S. Bank National Association, as trustee (the Indenture). Each $1,000 principal amount of the Notes is initially convertible into 24.0460 shares of our common stock, the Conversion Option, which is equivalent to an initial conversion price of approximately $41.59 per share, subject to adjustment upon the occurrence of specified events. The 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 February 1, 2023, only under the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ending on December 31, 2018 (and only during such calendar quarter), if the last reported sale price of our common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price of the Notes on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (measurement period) in which the trading price (as defined in the Indenture) 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 of the Notes on each such trading day; (3) if we call any or all of the Notes for redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events (as set forth in the Indenture). On or after February 1, 2023 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert their Notes at any time, regardless of the foregoing circumstances. 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, in the manner and subject to the terms and conditions provided in the Indenture. We may not redeem the Notes prior to August 6, 2021. On or after August 6, 2021, we may redeem for cash all or any portion of the Notes, at our option, if the last reported sale price of our common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period (including the last trading day of such period) ending on, and including the trading day immediately preceding, the date on which we provide the redemption notice at a redemption price equal to 100% principal amount of the Notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date. If we undergo a fundamental change (as set forth in the Indenture) at any time prior to the maturity date, holders of the Notes, will have the right, at their option, to require us to repurchase for cash all or any portion of their Notes at a repurchase price equal to 100% of the principal amount of the Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. In addition, following certain corporate events that occur prior to the maturity date or following our issuance of a notice of redemption, in each case as described in the Indenture, we will increase the conversion rate for a holder of the Notes who elects to convert its Notes in connection with such a corporate event or during the related redemption period in certain circumstances. During the nine months ended September 30, 2019 , none of the conditions allowing holders of the Notes to convert their Notes had been met. The Notes are therefore not convertible as of September 30, 2019 and are classified as long-term debt. The foregoing description is qualified in its entirety by reference to the text of the Indenture and the Form of the Notes, which were filed as Exhibits 4.1 and 4.2 to our Annual Report on Form 10-K for the year ended December 31, 2018, filed with the SEC on February 28, 2019. In accounting for the transaction, the Notes have been separated into liability and equity components. The initial carrying amount of the liability component was calculated by measuring the fair value of a similar debt instrument that does not have an associated convertible feature. The initial carrying amount of the equity component representing the Conversion Option was $53.8 million and was determined by deducting the fair value of the liability component from the par value of the Notes. The equity component was recorded as an increase to additional paid-in capital and is not remeasured as long as it continues to meet the conditions for equity classification. The excess of the principal amount of the Notes over the initial carrying amount of the liability component, or the debt discount, is amortized to interest expense over the contractual term of the Notes at an effective interest rate of 7.37% . In accounting for the debt issuance costs of $6.9 million related to the Notes, we allocated the total amount incurred to the liability and equity components of the Notes based on their relative values. Issuance costs attributable to the liability component were $5.3 million and will be amortized to interest expense using the effective interest method over the contractual term of the Notes. Issuance costs attributable to the equity component of $1.6 million were netted with the equity component in additional paid-in capital. The net carrying amount of the liability component of the Notes was as follows: As of As of (in thousands) Principal $ 230,000 $ 230,000 Unamortized debt discount (43,251 ) (50,334 ) Unamortized issuance costs (4,278 ) (4,978 ) Net carrying amount $ 182,471 $ 174,688 The net carrying amount of the equity component as September 30, 2019 and December 31, 2018 was as follows (in thousands): Debt discount for conversion option $ 53,820 Issuance costs (1,626 ) Net carrying amount $ 52,194 Interest expense related to the Notes was as follows: Three Months Ended Nine Months Ended Three and Nine Months Ended September 30, 2018 (in thousands) Contractual interest expense $ 719 $ 2,156 $ 383 Amortization of debt discount 2,437 7,082 1,180 Amortization of issuance costs 242 701 116 Total interest expense $ 3,398 $ 9,939 $ 1,679 In connection with the offering of the Notes, we entered into privately negotiated capped call transactions with certain counterparties, the (Capped Calls). The Capped Calls each have an initial strike price of $41.59 per share, subject to certain adjustments, which correspond to the initial conversion price of the Notes. The Capped Calls have initial cap prices of $63.98 per share, subject to certain adjustments. The Capped Calls are expected to offset potential dilution to our common stock upon conversion of the Notes, with such offset subject to a cap based on the cap price. The Capped Calls cover, subject to anti-dilution adjustments, approximately 5.5 million shares of our common stock. For accounting purposes, the Capped Calls are separate transactions, and not part of the terms of the Notes. The Capped Calls are recorded in stockholders' equity and are not accounted for as derivatives. Accordingly, the cost of $26.9 million incurred in connection with the Capped Calls was recorded as a reduction to additional paid-in capital. The net impact to our stockholders' equity, included in additional paid-in capital, of the above components of the Notes was as follows (in thousands): Conversion option $ 53,820 Purchase of capped calls (26,910 ) Issuance costs (1,626 ) Total $ 25,284

Leases

Leases	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Leases	Leases Our leases primarily relate to office facilities that have remaining terms of up to 10.3 years , some of which include one or more options to renew with renewal terms of up to 5 years and some of which include options to terminate the leases within the next 4 years . All of our leases are classified as operating leases. In November 2017, we entered into a lease agreement with respect to 147,061 square feet of office space at 120 Causeway Street, Boston, Massachusetts for our new corporate headquarters. The term of the lease was 126 months . We took possession of the leased office space on May 1, 2019 at which time we recorded a ROU asset and corresponding lease liability of $58.6 million . The components of lease expense were as follows: Three Months Ended Nine Months Ended (in thousands) Operating lease cost $ 3,288 $ 8,321 Short-term lease costs 323 998 Variable lease costs 894 2,407 Total lease costs $ 4,505 $ 11,726 Supplemental balance sheet information related to the operating leases was as follows: As of (in thousands, except lease term and discount rate) Operating ROU assets $ 61,217 Operating lease liabilities, current portion $ 6,460 Operating lease liabilities, non-current portion 73,266 Total operating lease liabilities $ 79,726 Weighted average remaining lease term (in years) - operating leases 9 Weighted average discount rate - operating leases 7.7 % Supplemental cash flow information related to leases was as follows: Three Months Ended Nine Months Ended (in thousands) Cash paid for amounts included in the measurement of lease liabilities $ 3,006 $ 8,421 ROU assets obtained in exchange for new lease obligations $ 3,682 $ 64,454 Maturities of operating lease liabilities as of September 30, 2019 were as follows (in thousands): 2019 (for the remaining three months) $ 2,063 2020 12,541 2021 12,273 2022 11,986 2023 11,942 2024 and thereafter 55,421 Total lease payments $ 106,226 Less: imputed interest (26,500 ) Total $ 79,726 In July 2019, we entered into a lease agreement with respect to 67,214 square feet at 100 Causeway Street, Boston, Massachusetts, to be located in the same complex as, and in order to expand, our corporate headquarters. The term of the lease is 102 months and is expected to commence in June 2021. Our future lease payments are approximately $35.0 million . We plan to take possession of the leased office space in the second quarter of 2021, at which time we will record an operating ROU asset and corresponding lease liability. In October 2019, we entered into a lease agreement with respect to 47,651 square feet located in Belfast, Northern Ireland. The term of the lease is 120 months and is expected to commence in March 2020. Our future lease payments are approximately $10.1 million . We plan to take possession of the leased office space in the first quarter of 2020, at which time we will record an operating ROU asset and corresponding lease liability. Under the prior lease accounting standard, as of December 31, 2018, the future minimum payments under non-cancellable leases, which included our future headquarters, were as follows (in thousands): 2019 $ 9,899 2020 11,616 2021 10,933 2022 11,054 2023 11,136 Thereafter 53,648 Total $ 108,286

Stock-Based Compensation Expens

Stock-Based Compensation Expense	9 Months Ended
	Sep. 30, 2019
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation Expense	Stock-Based Compensation Expense (a) General Stock-based compensation expense for restricted stock, restricted stock units, stock options and issuances of common stock pursuant to our employee stock purchase plan was classified in the accompanying consolidated statements of operations as follows: Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 (in thousands) Stock-based compensation expense: Cost of revenue $ 679 $ 478 $ 1,970 $ 1,321 Research and development 3,996 2,984 11,224 8,400 Sales and marketing 3,047 2,066 8,453 5,684 General and administrative 2,704 1,896 7,843 5,594 Total stock-based compensation expense $ 10,426 $ 7,424 $ 29,490 $ 20,999 We recognize compensation cost of all awards on a straight-line basis over the applicable vesting period, which is generally four years . (b) Restricted Stock and Restricted Stock Units Restricted stock and restricted stock unit activity during the nine months ended September 30, 2019 was as follows: Restricted Stock Restricted Stock Units Shares Weighted-Average Grant Date Fair Value Shares Weighted-Average Unvested balance as of December 31, 2018 21,677 $ 10.88 2,773,773 $ 21.21 Granted — — 1,640,949 42.79 Vested (21,677 ) 10.88 (914,289 ) 23.42 Forfeited — — (251,205 ) 25.99 Unvested balance as of September 30, 2019 — $ — 3,249,228 $ 31.12 As of September 30, 2019 , the unrecognized compensation expense related to our unvested restricted stock units expected to vest was $93.2 million . This unrecognized compensation expense will be recognized over an estimated weighted-average amortization period of 2.6 years . (c) Stock Options Stock option activity during the nine months ended September 30, 2019 was as follows: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Life (in years) Aggregate Intrinsic Value (in thousands) Outstanding as of December 31, 2018 3,713,179 $ 10.32 Granted — — Exercised (699,817 ) 11.34 $ 27,406 Forfeited/cancelled (35,664 ) 12.93 Outstanding as of September 30, 2019 2,977,698 $ 10.04 5.3 $ 105,248 Vested and exercisable as of September 30, 2019 2,408,560 $ 8.96 4.9 $ 87,735 As of September 30, 2019 , the unrecognized compensation expense related to our unvested stock options expected to vest was $3.6 million . This unrecognized compensation expense will be recognized over an estimated weighted-average amortization period of 1.3 years . The total fair value of stock options vested in the nine months ended September 30, 2019 was $3.8 million . (d) Employee Stock Purchase Plan Under the Rapid7, Inc. 2015 Employee Stock Purchase Plan (ESPP), employees may set aside up to 15% of their gross earnings, on an after-tax basis, to purchase our common stock at a discounted price, which is calculated at 85% of the lesser of: (i) the market value of our common stock at the beginning of each offering period and (ii) the market value of our common stock on the applicable purchase date. On March 15, 2018, we issued 123,607 shares of common stock to employees for aggregate proceeds of $1.6 million . The purchase prices of the shares were $12.96 and $14.78 per share, which were discounted in accordance with the terms of the ESPP from the closing prices of our common stock on March 16, 2017 of $15.25 and on September 18, 2017 of $17.39 , respectively. On September 14, 2018, we issued 96,108 shares of common stock to employees for aggregate proceeds of $2.0 million . The purchase prices of the shares were $21.96 and $14.78 per share, which were discounted in accordance with the terms of the ESPP from the closing prices of our common stock on March 16, 2018 of $25.84 and on September 18, 2017 of $17.39 , respectively. On March 15, 2019, we issued 110,822 shares of common stock to employees for aggregate proceeds of $2.6 million . The purchase prices of the shares were $30.46 and $21.96 per share, which were discounted in accordance with the terms of the ESPP from the closing prices of our common stock on September 17, 2018 of $35.84 and on March 16, 2018 of $25.84 , respectively. On September 13, 2019, we issued 74,221 shares of common stock to employees for aggregate proceeds of $2.9 million . The purchase price of the shares were $30.46 and $42.22 per share, which were discounted in accordance with the terms of the ESPP from the closing prices of our common stock on September 17, 2018 of $35.84 and on September 13, 2019 of $49.67 , respectively.

Net Loss per Share

Net Loss per Share	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Net Loss per Share	Net Loss per Share The following table summarizes the computation of basic and diluted net loss per share of our common stock for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 (in thousands, except share and per share data) Numerator: Net loss $ (14,406 ) $ (11,831 ) $ (39,499 ) $ (42,525 ) Denominator: Weighted-average common shares outstanding, basic and diluted 49,020,449 46,914,077 48,437,686 46,139,978 Net loss per share attributable to common stockholders, basic and diluted $ (0.29 ) $ (0.25 ) $ (0.82 ) $ (0.92 ) The following potentially dilutive securities outstanding, prior to the use of the treasury stock method or if-converted method, have been excluded from the computation of diluted weighted-average shares outstanding for the respective periods below because they would have been anti-dilutive: Three and Nine Months Ended September 30, 2019 2018 Options to purchase common stock 2,977,698 3,855,359 Unvested restricted stock — 68,409 Unvested restricted stock units 3,249,228 2,991,175 Shares to be issued under ESPP 10,822 16,651 Total 6,237,748 6,931,594 Additionally, the 5.5 million shares underlying the conversion option of the Notes are not considered in the calculation of diluted net loss per share as the effect would be anti-dilutive. The Notes are not convertible as of September 30, 2019 . We expect to settle the principal amount of the Notes in cash and therefore use the treasury stock method for calculating any potential dilutive effect of the conversion spread on diluted net income per share, if applicable. The conversion spread will have a dilutive impact on diluted net income per share when the average market price of our common stock for a given period of time exceeds the initial conversion price of $41.59 per share for the Notes.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies (a) Warranty We provide limited product warranties. Historically, any payments made under these provisions have been immaterial. (b) Litigation and Claims In October 2018, Finjan, Inc. (Finjan) filed a complaint against us and our wholly-owned subsidiary, Rapid7 LLC, in the United States District Court, District of Delaware, alleging patent infringement of seven patents held by them. In the complaint, Finjan sought unspecified damages, attorneys' fees and injunctive relief. We intend to vigorously contest Finjan's claims. This litigation is still in its early stages and the final outcome, including our liability, if any, with respect to Finjan's claims, is uncertain. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors. In addition, from time to time, we are a party to litigation or subject to claims incident to the ordinary course of business. Although the results of litigation and claims cannot be predicted with certainty, we currently believe that the final outcome of these ordinary course matters will not have a material adverse effect on our business, financial condition or results of operations. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors. (c) Indemnification Obligations We agree to standard indemnification provisions in the ordinary course of business. Pursuant to these provisions, we agree to indemnify, hold harmless and reimburse the indemnified party for losses suffered or incurred by the indemnified party, generally our customers, in connection with any United States patent, copyright or other intellectual property infringement claim by any third party arising from the use of our products or services in accordance with the agreement or arising from our gross negligence, willful misconduct or violation of the law (provided that there is not gross or willful misconduct on the part of the other party) with respect to our products or services. The term of these indemnification provisions is generally perpetual from the time of execution of the agreement. We carry insurance that covers certain third-party claims relating to our services and limits our exposure. We have never incurred costs to defend lawsuits or settle claims related to these indemnification provisions. As permitted under Delaware law, we have entered into indemnification agreements with our officers and directors, indemnifying them for certain events or occurrences while they serve as officers or directors of the company.

Segment Information and Informa

Segment Information and Information about Geographic Areas	9 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
Segment Information and Information about Geographic Areas	Segment Information and Information about Geographic Areas We operate in one segment. Our chief operating decision maker is our Chief Executive Officer, who makes operating decisions, assesses performance and allocates resources on a consolidated basis. Net revenues by geographic area presented based upon the location of the customer were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 (in thousands) North America $ 69,883 $ 53,232 $ 198,223 $ 149,177 Other 13,272 9,133 37,076 26,144 Total $ 83,155 $ 62,365 $ 235,299 $ 175,321 Of the total net revenues generated in North America, 96% of the revenues were generated in the United States for each of the three months ended September 30, 2019 and 2018 , and 97% and 96% of the revenues were generated in the United States for the nine months ended September 30, 2019 and 2018 , respectively. Property and equipment, net by geographic area was as follows: As of September 30, 2019 As of December 31, 2018 (in thousands) United States $ 47,985 $ 16,311 Other 3,534 1,212 Total $ 51,519 $ 17,523

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions In October 2015, McAfee, LLC announced the end-of-sale for the McAfee Vulnerability Manager to customers and partners, effective January 11, 2016, with end-of-life to follow, and announced that we were named their exclusive vulnerability management partner. Under the terms of the commercial agreement, we incur partner referral fees as customers transition from McAfee Vulnerability Manager to Nexpose. On February 6, 2017, Michael Berry, a member of our board of directors, became the chief financial officer of Intel Security (McAfee). During the three and nine months ended September 30, 2019 , we made payments of $0.2 million and $0.5 million , respectively, to McAfee LLC for partner referral fees. As of September 30, 2019 , we had $0.5 million of partner referral fees payable to McAfee, LLC recorded as accrued expenses on our consolidated balance sheet.

Description of Business, Basi_2

Description of Business, Basis of Presentation and Consolidation and Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation The accompanying unaudited consolidated financial statements have been prepared by us in accordance with accounting principles generally accepted in the United States of America (GAAP), as well as pursuant to the rules and regulations of the Securities and Exchange Commission (SEC), regarding interim financial reporting. Accordingly, certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2018 filed with the SEC on February 28, 2019. The consolidated financial statements include our results of operations and those of our wholly-owned subsidiaries and reflect all adjustments (consisting solely of normal, recurring adjustments) which are, in the opinion of management, necessary for a fair statement of results for the interim periods presented. All intercompany transactions and balances have been eliminated in consolidation. The results of operations for the three and nine months ended September 30, 2019 are not necessarily indicative of the results to be expected for any future period or the entire fiscal year.
Leases	Leases Effective January 1, 2019, we adopted Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2016-02, Leases (Topic 842), as amended Accounting Standard Codification (ASC) 842. In accordance with ASC 842, at the inception of an arrangement, we determine whether the arrangement is or contains a lease based on the unique facts and circumstances present and the classification of the lease. Most leases with a term greater than one year are recognized on the balance sheet as right-of-use (ROU) assets, lease liabilities and, if applicable, long-term lease liabilities. We have elected not to recognize on the balance sheet leases with terms of one year or less. For contracts with lease and non-lease components, we have elected not to allocate the contract consideration and to account for the lease and non-lease components as a single lease component. Lease liabilities and their corresponding ROU assets are recorded based on the present value of lease payments over the expected lease term. The implicit rate within our operating leases are generally not determinable and therefore we use the incremental borrowing rate at the lease commencement date to determine the present value of lease payments. The determination of our incremental borrowing rate requires judgment. We determine our incremental borrowing rate for each lease using our estimated borrowing rate, adjusted for various factors including level of collateralization, term and currency to align with the terms of the lease. The operating lease ROU asset also includes any lease prepayments, offset by lease incentives. Certain of our leases include options to extend or terminate the lease. An option to extend the lease is considered in connection with determining the ROU asset and lease liability when it is reasonably certain we will exercise that option. An option to terminate is considered unless it is reasonably certain we will not exercise the option. For periods prior to the adoption of ASC 842, we recorded rent expense on a straight-line basis over the term of the related lease. The difference between the straight-line rent expense and the payments made in accordance with the operating lease agreements were recognized as a deferred rent liability on the accompanying consolidated balance sheets.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Accounting Pronouncements Recently Adopted In February 2016, the FASB issued ASU 2016-02, Leases , which requires companies to recognize on the balance sheet the assets and liabilities for the rights and obligations created by the leased asset. The standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. We adopted this standard effective January 1, 2019 using the modified retrospective approach for all leases entered into before the effective date. We also elected to implement the new standard at the adoption date with a cumulative-effect adjustment, if any, recognized to the opening balance of accumulative deficit in the period of adoption. For comparability purposes, we will continue to comply with the previous disclosure requirements in accordance with the existing lease guidance for all periods presented in the year of adoption. We elected the package of practical expedients as permitted under the transition guidance, which allowed us: (1) to carry forward the historical lease classification; (2) not to reassess whether expired or existing contracts are or contain leases; and, (3) not to reassess the treatment of initial direct costs for existing leases. In addition, we elected an accounting policy to not recognize leases with an initial term of one year or less on the balance sheet. Upon the adoption of this standard on January 1, 2019, we recognized a total lease liability of $21.3 million , representing the present value of the minimum rental payments remaining as of the adoption date and a right-of-use asset in the amount of $15.4 million . We did not have any finance leases (formerly referred to as capital leases prior to the adoption of ASC 842), therefore there was no change in accounting treatment required. Accounting Pronouncements Not Yet Effective In August 2018, the FASB issued Accounting Standards Update (ASU) 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract, which aligns the requirements for capitalizing implementation costs in cloud computing arrangements with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The new standard will be effective for us in the first quarter of 2020. Entities can choose to adopt the new guidance prospectively or retrospectively. We plan to adopt this standard using the prospective adoption approach, however we are currently in the process of evaluating the effects of this pronouncement on our consolidated financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement, which eliminates, modifies and adds disclosure requirements for fair value measurements. The new standard will be effective for us in the first quarter of 2020. We do not expect this ASU to have a material impact on our consolidated financial statements.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Summary of Revenue from Contracts with Customers and Revenue by Region	The following table summarizes revenue from contracts with customers for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 (in thousands) Subscription revenue $ 57,885 $ 35,860 $ 157,163 $ 95,990 Term and perpetual software licenses 9,160 7,461 28,151 19,717 Maintenance and support 9,178 10,614 28,107 31,977 Professional services 6,679 7,922 20,399 25,193 Other 253 508 1,479 2,444 Total revenue $ 83,155 $ 62,365 $ 235,299 $ 175,321 The following table summarizes the revenue by region based on the shipping address of customers who have contracted to use our products or services for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 (in thousands) United States $ 67,434 $ 51,341 $ 191,480 $ 143,372 All other 15,721 11,024 43,819 31,949 Total revenue $ 83,155 $ 62,365 $ 235,299 $ 175,321
Summary of Activity of Deferred Contract Acquisition and Fulfillment Costs	The following table summarizes the activity of the deferred contract acquisition and fulfillment costs for the nine months ended September 30, 2019 and 2018 : Nine Months Ended September 30, 2019 2018 (in thousands) Beginning balance $ 39,955 $ 27,165 Capitalization of contract acquisition and fulfillment costs 16,084 13,391 Amortization of deferred contract acquisition and fulfillment costs (10,682 ) (7,006 ) Ending balance $ 45,357 $ 33,550
Summary of Estimated Revenue Expected to be Recognized in Future Related to Performance Obligations	The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied or partially unsatisfied as of September 30, 2019 . The estimated revenues do not include unexercised contract renewals. Remainder of 2019 2020 2021 and thereafter (in thousands) Subscription revenue $ 56,250 $ 101,394 $ 19,115 Term and perpetual software licenses 8,460 20,335 13,868 Maintenance and support 8,172 14,678 2,488

Business Combination (Tables)

Business Combination (Tables)	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Summary of Preliminary Allocation of Purchase Price to Estimated Fair Value of Assets Acquired and Liabilities Assumed	The following table summarizes the preliminary allocation of purchase price to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date (in thousands): Purchase price $ 16,130 Recognized amount of identifiable assets acquired and liabilities assumed: Cash and cash equivalents $ 1,523 Other net working capital 325 Deferred revenue (487 ) Deferred tax liability (761 ) Intangible asset 6,084 Total identifiable net assets assumed 6,684 Goodwill 9,446 Total purchase price allocation $ 16,130
Summary of Estimated Fair Value and Useful Life of Identifiable Intangible Assets	The fair value of identifiable intangible assets was based on valuations using the income approach. The estimated fair value and useful life of identifiable intangible assets are as follows: Amount Weighted Average Amortization Life (years) (in thousands) Developed technology $ 6,084 5

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Summary of Financial Assets Measured and Recorded at Fair Value on Recurring Basis	The following table presents our financial assets measured and recorded at fair value on a recurring basis using the above input categories: As of September 30, 2019 Level 1 Level 2 Level 3 Total (in thousands) Description: Assets: Money market funds $ 94,929 $ — $ — $ 94,929 U.S. government agencies 41,414 — — 41,414 Commercial paper — 22,795 — 22,795 Corporate bonds — 53,377 — 53,377 Agency bonds — 16,731 — 16,731 Asset-backed securities — 8,495 — 8,495 Total assets $ 136,343 $ 101,398 $ — $ 237,741 As of December 31, 2018 Level 1 Level 2 Level 3 Total (in thousands) Description: Assets: Money market funds $ 55,646 $ — $ — $ 55,646 U.S. government agencies 74,481 — — 74,481 Commercial paper — 57,554 — 57,554 Corporate bonds — 48,495 — 48,495 Agency bonds — 19,087 — 19,087 Asset-backed securities — 7,483 — 7,483 Total assets $ 130,127 $ 132,619 $ — $ 262,746
Summary of Investments Classified as Available-For-Sale	Our investments, which are all classified as available-for-sale, consisted of the following: As of September 30, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (in thousands) Description: U.S. government agencies $ 41,296 $ 118 $ — $ 41,414 Commercial paper 22,794 1 — 22,795 Corporate bonds 53,254 123 — 53,377 Agency bonds 16,673 58 — 16,731 Asset-backed securities 8,491 5 (1 ) 8,495 Total assets $ 142,508 $ 305 $ (1 ) $ 142,812 As of December 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (in thousands) Description: U.S. government agencies $ 71,480 $ 20 $ (17 ) $ 71,483 Commercial paper 57,554 — — 57,554 Corporate bonds 48,532 15 (52 ) 48,495 Agency bonds 19,077 16 (6 ) 19,087 Asset-backed securities 7,490 — (7 ) 7,483 Total assets $ 204,133 $ 51 $ (82 ) $ 204,102

Property and Equipment (Tables)

Property and Equipment (Tables)	9 Months Ended
	Sep. 30, 2019
Property, Plant and Equipment [Abstract]
Summary of Property and Equipment	Property and equipment are recorded at cost and consist of the following: As of As of (in thousands) Computer equipment and software $ 12,274 $ 18,724 Furniture and fixtures (1) 7,068 5,580 Leasehold improvements (1) 43,805 19,437 Total 63,147 43,741 Less accumulated depreciation (11,628 ) (26,218 ) Property and equipment, net $ 51,519 $ 17,523 (1) As of September 30, 2019 , $29.4 million and $3.9 million of leasehold improvements and furniture and fixtures, respectively, related to our new Boston, Massachusetts corporate headquarters which was completed in July 2019. As of December 31, 2018 , leasehold improvements included $3.8 million of construction-in progress related to our new corporate headquarters facility.

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The following table displays the changes in goodwill: Amount (in thousands) Balance at December 31, 2018 $ 88,420 NetFort acquisition 9,446 Balance at September 30, 2019 $ 97,866
Schedule of Identifiable Intangible Assets	The following table presents details of our intangible assets, which include acquired identifiable intangible assets and capitalized internal-use software costs: As of September 30, 2019 As of December 31, 2018 Weighted- Average Life (years) Gross Carrying Amount Accumulated Amortization Net Book Value Gross Carrying Amount Accumulated Amortization Net Book Value (in thousands) Intangible assets subject to amortization: Developed technology 5.4 $ 35,855 $ (14,422 ) $ 21,433 $ 29,771 $ (9,741 ) $ 20,030 Customer relationships 6.7 1,000 (609 ) 391 1,000 (504 ) 496 Trade names 6.1 519 (519 ) — 519 (516 ) 3 Non-compete agreements 2.0 40 (40 ) — 40 (40 ) — Total acquired intangible assets 37,414 (15,590 ) 21,824 31,330 (10,801 ) 20,529 Internal-use software 8,472 (1,113 ) 7,359 3,786 (360 ) 3,426 Total intangible assets $ 45,886 $ (16,703 ) $ 29,183 $ 35,116 $ (11,161 ) $ 23,955
Schedule of Estimated Amortization Expense	Estimated future amortization expense of the acquired identifiable intangible assets and completed capitalized internal-use software costs as of September 30, 2019 was as follows (in thousands): 2019 (for the remaining three months) $ 2,117 2020 8,431 2021 7,636 2022 4,671 2023 2,667 2024 and thereafter 304 Total $ 25,826

Convertible Senior Notes and _2

Convertible Senior Notes and Capped Calls (Tables)	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Schedule of Liability and Equity Components of Convertible Debt	The net carrying amount of the liability component of the Notes was as follows: As of As of (in thousands) Principal $ 230,000 $ 230,000 Unamortized debt discount (43,251 ) (50,334 ) Unamortized issuance costs (4,278 ) (4,978 ) Net carrying amount $ 182,471 $ 174,688 The net carrying amount of the equity component as September 30, 2019 and December 31, 2018 was as follows (in thousands): Debt discount for conversion option $ 53,820 Issuance costs (1,626 ) Net carrying amount $ 52,194 Interest expense related to the Notes was as follows: Three Months Ended Nine Months Ended Three and Nine Months Ended September 30, 2018 (in thousands) Contractual interest expense $ 719 $ 2,156 $ 383 Amortization of debt discount 2,437 7,082 1,180 Amortization of issuance costs 242 701 116 Total interest expense $ 3,398 $ 9,939 $ 1,679 The net impact to our stockholders' equity, included in additional paid-in capital, of the above components of the Notes was as follows (in thousands): Conversion option $ 53,820 Purchase of capped calls (26,910 ) Issuance costs (1,626 ) Total $ 25,284

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Summary of Components of Lease Expense and Supplemental Cash Flow Information Related to Leases	The components of lease expense were as follows: Three Months Ended Nine Months Ended (in thousands) Operating lease cost $ 3,288 $ 8,321 Short-term lease costs 323 998 Variable lease costs 894 2,407 Total lease costs $ 4,505 $ 11,726 Supplemental cash flow information related to leases was as follows: Three Months Ended Nine Months Ended (in thousands) Cash paid for amounts included in the measurement of lease liabilities $ 3,006 $ 8,421 ROU assets obtained in exchange for new lease obligations $ 3,682 $ 64,454
Summary of Supplemental Balance Sheet Information Related to Operating Leases	Supplemental balance sheet information related to the operating leases was as follows: As of (in thousands, except lease term and discount rate) Operating ROU assets $ 61,217 Operating lease liabilities, current portion $ 6,460 Operating lease liabilities, non-current portion 73,266 Total operating lease liabilities $ 79,726 Weighted average remaining lease term (in years) - operating leases 9 Weighted average discount rate - operating leases 7.7 %
Summary of Maturities of Operating Lease Liabilities and Future Minimum Payments under Non-cancellable Leases	Under the prior lease accounting standard, as of December 31, 2018, the future minimum payments under non-cancellable leases, which included our future headquarters, were as follows (in thousands): 2019 $ 9,899 2020 11,616 2021 10,933 2022 11,054 2023 11,136 Thereafter 53,648 Total $ 108,286 Maturities of operating lease liabilities as of September 30, 2019 were as follows (in thousands): 2019 (for the remaining three months) $ 2,063 2020 12,541 2021 12,273 2022 11,986 2023 11,942 2024 and thereafter 55,421 Total lease payments $ 106,226 Less: imputed interest (26,500 ) Total $ 79,726

Stock-Based Compensation Expe_2

Stock-Based Compensation Expense (Tables)	9 Months Ended
	Sep. 30, 2019
Share-based Payment Arrangement [Abstract]
Schedule of Stock-Based Compensation Expense	Stock-based compensation expense for restricted stock, restricted stock units, stock options and issuances of common stock pursuant to our employee stock purchase plan was classified in the accompanying consolidated statements of operations as follows: Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 (in thousands) Stock-based compensation expense: Cost of revenue $ 679 $ 478 $ 1,970 $ 1,321 Research and development 3,996 2,984 11,224 8,400 Sales and marketing 3,047 2,066 8,453 5,684 General and administrative 2,704 1,896 7,843 5,594 Total stock-based compensation expense $ 10,426 $ 7,424 $ 29,490 $ 20,999
Summary of Restricted Stock and Restricted Stock Unit Activity	Restricted stock and restricted stock unit activity during the nine months ended September 30, 2019 was as follows: Restricted Stock Restricted Stock Units Shares Weighted-Average Grant Date Fair Value Shares Weighted-Average Unvested balance as of December 31, 2018 21,677 $ 10.88 2,773,773 $ 21.21 Granted — — 1,640,949 42.79 Vested (21,677 ) 10.88 (914,289 ) 23.42 Forfeited — — (251,205 ) 25.99 Unvested balance as of September 30, 2019 — $ — 3,249,228 $ 31.12
Summary of Stock Option Activity	Stock option activity during the nine months ended September 30, 2019 was as follows: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Life (in years) Aggregate Intrinsic Value (in thousands) Outstanding as of December 31, 2018 3,713,179 $ 10.32 Granted — — Exercised (699,817 ) 11.34 $ 27,406 Forfeited/cancelled (35,664 ) 12.93 Outstanding as of September 30, 2019 2,977,698 $ 10.04 5.3 $ 105,248 Vested and exercisable as of September 30, 2019 2,408,560 $ 8.96 4.9 $ 87,735

Net Loss per Share (Tables)

Net Loss per Share (Tables)	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Summary of Basic and Diluted Net Loss Per Share of Common Stock	The following table summarizes the computation of basic and diluted net loss per share of our common stock for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 (in thousands, except share and per share data) Numerator: Net loss $ (14,406 ) $ (11,831 ) $ (39,499 ) $ (42,525 ) Denominator: Weighted-average common shares outstanding, basic and diluted 49,020,449 46,914,077 48,437,686 46,139,978 Net loss per share attributable to common stockholders, basic and diluted $ (0.29 ) $ (0.25 ) $ (0.82 ) $ (0.92 )
Anti-Dilutive Securities Excluded from Computation Diluted Weighted Average Shares Outstanding	The following potentially dilutive securities outstanding, prior to the use of the treasury stock method or if-converted method, have been excluded from the computation of diluted weighted-average shares outstanding for the respective periods below because they would have been anti-dilutive: Three and Nine Months Ended September 30, 2019 2018 Options to purchase common stock 2,977,698 3,855,359 Unvested restricted stock — 68,409 Unvested restricted stock units 3,249,228 2,991,175 Shares to be issued under ESPP 10,822 16,651 Total 6,237,748 6,931,594

Segment Information and Infor_2

Segment Information and Information about Geographic Areas (Tables)	9 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
Net Revenues of Customer by Geographic Area	Net revenues by geographic area presented based upon the location of the customer were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 (in thousands) North America $ 69,883 $ 53,232 $ 198,223 $ 149,177 Other 13,272 9,133 37,076 26,144 Total $ 83,155 $ 62,365 $ 235,299 $ 175,321
Property and Equipment, Net By Geographic Area	Property and equipment, net by geographic area was as follows: As of September 30, 2019 As of December 31, 2018 (in thousands) United States $ 47,985 $ 16,311 Other 3,534 1,212 Total $ 51,519 $ 17,523

Description of Business, Basi_3

Description of Business, Basis of Presentation and Consolidation and Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	$ 61,217		$ 0
Operating lease liability	$ 79,726
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets		$ 15,400
Operating lease liability		$ 21,300

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Summary of Revenue from Contracts with Customers and Revenue by Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Total revenue	$ 83,155	$ 62,365	$ 235,299	$ 175,321
United States [Member]
Disaggregation of Revenue [Line Items]
Total revenue	67,434	51,341	191,480	143,372
All Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	15,721	11,024	43,819	31,949
Subscription Revenue [Member]
Disaggregation of Revenue [Line Items]
Total revenue	57,885	35,860	157,163	95,990
Term and Perpetual Software Licenses [Member]
Disaggregation of Revenue [Line Items]
Total revenue	9,160	7,461	28,151	19,717
Maintenance and Support [Member]
Disaggregation of Revenue [Line Items]
Total revenue	9,178	10,614	28,107	31,977
Professional Services [Member]
Disaggregation of Revenue [Line Items]
Total revenue	6,679	7,922	20,399	25,193
Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	$ 253	$ 508	$ 1,479	$ 2,444

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue recognized	$ 72.7	$ 53.1	$ 158.7	$ 113.1
Contract assets	$ 0.5		$ 0.5		$ 0.8
Cloud-Based Subscription Contracts [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract term			1 year
Managed Services Offerings [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract term			1 year
Term and Perpetual Software Licenses [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Economic life			5 years
Professional Services [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Amortization period	1 year		1 year
Professional Services [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contractual period			1 year

Revenue from Contracts with C_5

Revenue from Contracts with Customers - Summary of Activity of Deferred Contract Acquisition and Fulfillment Costs (Details) - Contract Acquisition and Fulfillment Costs [Member] - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Capitalized Contract Cost [Roll Forward]
Beginning balance	$ 39,955	$ 27,165
Capitalization of contract acquisition and fulfillment costs	16,084	13,391
Amortization of deferred contract acquisition and fulfillment costs	(10,682)	(7,006)
Ending balance	$ 45,357	$ 33,550

Revenue from Contracts with C_6

Revenue from Contracts with Customers - Summary of Estimated Revenue Expected to be Recognized in Future Related to Performance Obligations (Details) $ in Thousands	Sep. 30, 2019USD ($)
Subscription Revenue [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 56,250
Expected timing of satisfaction, period	3 months
Subscription Revenue [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 101,394
Expected timing of satisfaction, period	1 year
Subscription Revenue [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 19,115
Expected timing of satisfaction, period
Term and Perpetual Software Licenses [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 8,460
Expected timing of satisfaction, period	3 months
Term and Perpetual Software Licenses [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 20,335
Expected timing of satisfaction, period	1 year
Term and Perpetual Software Licenses [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 13,868
Expected timing of satisfaction, period
Maintenance and Support [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 8,172
Expected timing of satisfaction, period	3 months
Maintenance and Support [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 14,678
Expected timing of satisfaction, period	1 year
Maintenance and Support [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 2,488
Expected timing of satisfaction, period
Professional Services [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 12,000
Expected timing of satisfaction, period	12 months

Business Combination - Addition

Business Combination - Additional Information (Details) - USD ($) $ in Millions	Apr. 01, 2019	Sep. 30, 2019
Business Acquisition [Line Items]
Vesting period		4 years
NetFort Technologies [Member]
Business Acquisition [Line Items]
Total cash consideration	$ 16.1
Acquisition related costs		$ 0.5
Deferred tax benefit recognized during period for release of valuation allowance	$ 0.8
Vesting period	3 years
Restricted Stock Units (RSUs) [Member] | NetFort Technologies [Member]
Business Acquisition [Line Items]
Equity awards granted to certain retained employees (in shares)	123,623

Business Combination - Summary

Business Combination - Summary of Preliminary Allocation of Purchase Price to Estimated Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Apr. 01, 2019	Sep. 30, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 97,866	$ 88,420
NetFort Technologies [Member]
Business Acquisition [Line Items]
Purchase price	$ 16,130
Cash and cash equivalents	1,523
Other net working capital	325
Deferred revenue	(487)
Deferred tax liability	(761)
Intangible asset	6,084
Total identifiable net assets assumed	6,684
Goodwill	9,446
Total purchase price allocation	$ 16,130

Business Combination - Summar_2

Business Combination - Summary of Estimated Fair Value and Useful Life of Identifiable Intangible Assets (Details) - Developed Technology [Member] - NetFort Technologies [Member] $ in Thousands	Apr. 01, 2019USD ($)
Business Acquisition [Line Items]
Amount	$ 6,084
Weighted Average Amortization Life (years)	5 years

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Financial Assets Measured and Recorded at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 142,812	$ 204,102
The Notes, Due 2023 [Member] | Convertible Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate	1.25%
Convertible debt, fair value	$ 298,100
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	237,741	262,746
Level 1 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	136,343	130,127
Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	101,398	132,619
Level 3 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	0	0
U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	41,414	71,483
U.S. Government Agencies [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	41,414	74,481
U.S. Government Agencies [Member] | Level 1 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	41,414	74,481
U.S. Government Agencies [Member] | Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
U.S. Government Agencies [Member] | Level 3 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	22,795	57,554
Commercial Paper [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	22,795	57,554
Commercial Paper [Member] | Level 1 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Commercial Paper [Member] | Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	22,795	57,554
Commercial Paper [Member] | Level 3 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Corporate Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	53,377	48,495
Corporate Bonds [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	53,377	48,495
Corporate Bonds [Member] | Level 1 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Corporate Bonds [Member] | Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	53,377	48,495
Corporate Bonds [Member] | Level 3 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Agency Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	16,731	19,087
Agency Bonds [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	16,731	19,087
Agency Bonds [Member] | Level 1 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Agency Bonds [Member] | Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	16,731	19,087
Agency Bonds [Member] | Level 3 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Asset-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	8,495	7,483
Asset-backed Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	8,495	7,483
Asset-backed Securities [Member] | Level 1 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Asset-backed Securities [Member] | Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	8,495	7,483
Asset-backed Securities [Member] | Level 3 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Money Market Funds [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	94,929	55,646
Money Market Funds [Member] | Level 1 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	94,929	55,646
Money Market Funds [Member] | Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	0	0
Money Market Funds [Member] | Level 3 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	$ 0	$ 0

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Investments Classified as Available-For-Sale (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 142,508	$ 204,133
Gross Unrealized Gains	305	51
Gross Unrealized Losses	(1)	(82)
Fair Value	$ 142,812	$ 204,102
Minimum [Member]
Debt Securities, Available-for-sale [Line Items]
Remaining maturity	2 months	3 months
Maximum [Member]
Debt Securities, Available-for-sale [Line Items]
Remaining maturity	15 months	2 years
U.S. Government Agencies [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 41,296	$ 71,480
Gross Unrealized Gains	118	20
Gross Unrealized Losses	0	(17)
Fair Value	41,414	71,483
U.S. Government Agencies [Member] | Available-For-Sale Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Money market funds		3,000
Commercial Paper [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	22,794	57,554
Gross Unrealized Gains	1	0
Gross Unrealized Losses	0	0
Fair Value	22,795	57,554
Corporate Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	53,254	48,532
Gross Unrealized Gains	123	15
Gross Unrealized Losses	0	(52)
Fair Value	53,377	48,495
Agency Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	16,673	19,077
Gross Unrealized Gains	58	16
Gross Unrealized Losses	0	(6)
Fair Value	16,731	19,087
Asset-backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	8,491	7,490
Gross Unrealized Gains	5	0
Gross Unrealized Losses	(1)	(7)
Fair Value	$ 8,495	$ 7,483

Property and Equipment - Summar

Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 63,147	$ 43,741
Less accumulated depreciation	(11,628)	(26,218)
Property and equipment, net	51,519	17,523
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	12,274	18,724
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	7,068	5,580
Construction in progress, gross	3,900
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	43,805	19,437
Construction in progress, gross	$ 29,400
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Construction in progress, gross		$ 3,800

Property and Equipment - Additi

Property and Equipment - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 2.5	$ 1.6	$ 6.4	$ 4.6
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Disposal of property, plant, and equipment			9.1
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Disposal of property, plant, and equipment			8.6
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Disposal of property, plant, and equipment			$ 3.3

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 97,866		$ 97,866		$ 88,420
Amortization expense	$ 2,100	$ 1,100	5,500	$ 3,100
Capitalized internal-use software costs for works in process			$ 3,400

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Goodwill Activity (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)
Goodwill [Roll Forward]
Balance at December 31, 2018	$ 88,420
NetFort acquisition	9,446
Balance at September 30, 2019	$ 97,866

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Schedule of Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, Gross Carrying Amount	$ 45,886	$ 35,116
Accumulated Amortization	(16,703)	(11,161)
Total	25,826
Total intangible assets, Net Book Value	29,183	23,955
Total acquired intangible assets, Gross Carrying Amount	37,414	31,330
Total acquired intangible assets, Accumulated Amortization	(15,590)	(10,801)
Acquired Intangible Assets, Net Book Value	$ 21,824	20,529
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Weighted-Average Life (years)	5 years 4 months 24 days
Gross Carrying Amount	$ 35,855	29,771
Accumulated Amortization	(14,422)	(9,741)
Total	$ 21,433	20,030
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Weighted-Average Life (years)	6 years 8 months 12 days
Gross Carrying Amount	$ 1,000	1,000
Accumulated Amortization	(609)	(504)
Total	$ 391	496
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Weighted-Average Life (years)	6 years 1 month 6 days
Gross Carrying Amount	$ 519	519
Accumulated Amortization	(519)	(516)
Total	$ 0	3
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Weighted-Average Life (years)	2 years
Gross Carrying Amount	$ 40	40
Accumulated Amortization	(40)	(40)
Total	0	0
Internal-use Software [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,472	3,786
Accumulated Amortization	(1,113)	(360)
Total	$ 7,359	$ 3,426

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Schedule of Estimated Amortization Expense (Details) $ in Thousands	Sep. 30, 2019USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2019 (for the remaining three months)	$ 2,117
2020	8,431
2021	7,636
2022	4,671
2023	2,667
2024 and thereafter	304
Total	$ 25,826

Convertible Senior Notes and _3

Convertible Senior Notes and Capped Calls - Additional Information (Details) $ / shares in Units, shares in Millions	1 Months Ended	9 Months Ended
	Aug. 31, 2018USD ($)day$ / sharesshares	Sep. 30, 2019USD ($)$ / shares	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Debt Instrument [Line Items]
Proceeds from convertible debt		$ 0	$ 223,529,000
Equity component of convertible debt, subsequent adjustments	$ 26,910,000
Call Option [Member]
Debt Instrument [Line Items]
Strike price (in dollars per share) | $ / shares	$ 41.59
Cap price (in dollars per share) | $ / shares	$ 63.98
Option indexed to issuer's equity (in shares) | shares	5.5
Equity component of convertible debt, subsequent adjustments		$ 26,900,000
The Notes [Member]
Debt Instrument [Line Items]
Strike price (in dollars per share) | $ / shares		$ 41.59
Convertible Debt [Member] | The Notes, Due 2023 [Member]
Debt Instrument [Line Items]
Face amount	$ 200,000,000
Interest rate		1.25%
Convertible Debt [Member] | The Notes, Over-allotment Options [Member]
Debt Instrument [Line Items]
Face amount	$ 30,000,000
Convertible Debt [Member] | The Notes [Member]
Debt Instrument [Line Items]
Interest rate	1.25%
Proceeds from convertible debt	$ 223,100,000
Conversion ratio (in shares per $1000)	0.024046
Conversion price (in dollars per share) | $ / shares	$ 41.59
Redemption price, percentage	100.00%
Carrying amount of equity component	$ 53,800,000	$ 52,194,000		$ 52,194,000
Converted instrument, rate	7.37%
Debt issuance costs, net	$ 6,900,000	$ 4,278,000		$ 4,978,000
Liability component	5,300,000
Issuance costs of equity component	$ 1,600,000
Debt Covenant One [Member] | Convertible Debt [Member] | The Notes [Member]
Debt Instrument [Line Items]
Threshold trading days | day	20
Threshold consecutive trading days | day	30
Threshold percentage of stock price trigger	130.00%
Debt Covenant Two [Member] | Convertible Debt [Member] | The Notes [Member]
Debt Instrument [Line Items]
Threshold trading days | day	5
Threshold percentage of stock price trigger	98.00%
Debt Covenant Three [Member] | Convertible Debt [Member] | The Notes [Member]
Debt Instrument [Line Items]
Threshold trading days | day	20
Threshold consecutive trading days | day	30
Threshold percentage of stock price trigger	130.00%
Redemption price, percentage	100.00%

Convertible Senior Notes and _4

Convertible Senior Notes and Capped Calls - Carrying Amount of Liability Component (Details) - Convertible Debt [Member] - The Notes [Member] - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Aug. 31, 2018
Debt Instrument [Line Items]
Principal	$ 230,000	$ 230,000
Unamortized debt discount	(43,251)	(50,334)
Unamortized issuance costs	(4,278)	(4,978)	$ (6,900)
Net carrying amount	$ 182,471	$ 174,688

Convertible Senior Notes and _5

Convertible Senior Notes and Capped Calls - Carrying Amount of Equity Component (Details) - Convertible Debt [Member] - The Notes [Member] - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Aug. 31, 2018
Debt Instrument [Line Items]
Debt discount for conversion option	$ 53,820	$ 53,820
Issuance costs	(1,626)	(1,626)
Net carrying amount	$ 52,194	$ 52,194	$ 53,800

Convertible Senior Notes and _6

Convertible Senior Notes and Capped Calls - Schedule of Interest Expense (Details) - Convertible Debt [Member] - The Notes [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Debt Instrument [Line Items]
Contractual interest expense	$ 719	$ 383	$ 2,156	$ 383
Amortization of debt discount	2,437	1,180	7,082	1,180
Amortization of issuance costs	242	116	701	116
Total interest expense	$ 3,398	$ 1,679	$ 9,939	$ 1,679

Convertible Senior Notes and _7

Convertible Senior Notes and Capped Calls - Impact to Shareholders' Equity (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended
	Aug. 31, 2018	Sep. 30, 2018	Sep. 30, 2018
Debt Instrument [Line Items]
Conversion option	$ 53,820
Purchase of capped calls	(26,910)
Issuance costs	(1,626)
Total	$ 25,284	$ 52,198	$ 52,198

Leases - Additional Information

Leases - Additional Information (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)	Oct. 31, 2019USD ($)ft²	Jul. 31, 2019USD ($)ft²	May 01, 2019USD ($)	Dec. 31, 2018USD ($)	Nov. 30, 2017ft²
Lessee, Lease, Description [Line Items]
Lease term	9 years
Renewal term	5 years
Termination period	4 years
Operating lease liability	$ 79,726
Operating lease right-of-use assets	$ 61,217				$ 0
Headquarters [Member]
Lessee, Lease, Description [Line Items]
Area of real estate property | ft²						147,061
Term of lease						126 months
Operating lease liability				$ 58,600
Operating lease right-of-use assets				$ 58,600
Headquarter Expansion [Member]
Lessee, Lease, Description [Line Items]
Area of real estate property | ft²			67,214
Lease not yet commenced, term of contract			102 months
Lease not yet commenced, liability			$ 35,000
Belfast, Northern Ireland Property [Member] | Subsequent Event [Member]
Lessee, Lease, Description [Line Items]
Area of real estate property | ft²		47,651
Lease not yet commenced, term of contract		120 months
Lease not yet commenced, liability		$ 10,100
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lease term	10 years 3 months 18 days

Leases - Summary of Components

Leases - Summary of Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Leases [Abstract]
Operating lease cost	$ 3,288	$ 8,321
Short-term lease costs	323	998
Variable lease costs	894	2,407
Total lease costs	$ 4,505	$ 11,726

Leases - Summary of Supplementa

Leases - Summary of Supplemental Balance Sheet Information Related to Operating Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Operating ROU assets	$ 61,217	$ 0
Operating lease liabilities, current portion	6,460	0
Operating lease liabilities, non-current portion	73,266	$ 0
Total operating lease liabilities	$ 79,726
Weighted average remaining lease term (in years) - operating leases	9 years
Weighted average discount rate - operating leases	7.70%

Leases - Summary of Supplemen_2

Leases - Summary of Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities	$ 3,006	$ 8,421
ROU assets obtained in exchange for new lease obligations	$ 3,682	$ 64,454

Leases - Summary of Maturities

Leases - Summary of Maturities of Operating Lease Liabilities (Details) $ in Thousands	Sep. 30, 2019USD ($)
Leases [Abstract]
2019 (for the remaining three months)	$ 2,063
2020	12,541
2021	12,273
2022	11,986
2023	11,942
2024 and thereafter	55,421
Total lease payments	106,226
Less: imputed interest	(26,500)
Total	$ 79,726

Leases - Summary of Future Mini

Leases - Summary of Future Minimum Lease Payments Under Topic 840 (Details) $ in Thousands	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 9,899
2020	11,616
2021	10,933
2022	11,054
2023	11,136
Thereafter	53,648
Total	$ 108,286

Stock-Based Compensation Expe_3

Stock-Based Compensation Expense - Schedule of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 10,426	$ 7,424	$ 29,490	$ 20,999
Cost of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	679	478	1,970	1,321
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	3,996	2,984	11,224	8,400
Sales and Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	3,047	2,066	8,453	5,684
General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 2,704	$ 1,896	$ 7,843	$ 5,594

Stock-Based Compensation Expe_4

Stock-Based Compensation Expense - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	Sep. 13, 2019	Mar. 15, 2019	Sep. 14, 2018	Mar. 15, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 17, 2018	Mar. 16, 2018	Sep. 18, 2017	Mar. 16, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period							4 years
Purchase price of common stock by employees							85.00%
Issuance of common stock under employee stock purchase plan					$ 2,887	$ 2,005	$ 5,521	$ 3,637
Employee Stock Purchase Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee withholding percentage							15.00%
Restricted Stock and Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense					93,200		$ 93,200
Unrecognized compensation expense, recognition period							2 years 7 months 6 days
Options to Purchase Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense, recognition period							1 year 3 months 18 days
Unrecognized compensation cost, stock options					$ 3,600		$ 3,600
Stock options vested, fair value							$ 3,800
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued to employees (in shares)	74,221	110,822	96,108	123,607
Issuance of common stock under employee stock purchase plan	$ 2,900	$ 2,600	$ 2,000	$ 1,600
Share issued, price per share (in dollars per share)	$ 42.22								$ 30.46	$ 21.96	$ 14.78	$ 12.96
Closing price of shares issued (in dollars per share)	$ 49.67								$ 35.84	$ 25.84	$ 17.39	$ 15.25

Stock-Based Compensation Expe_5

Stock-Based Compensation Expense - Summary of Restricted Stock and Restricted Stock Unit Activity (Details)	9 Months Ended
	Sep. 30, 2019$ / sharesshares
Restricted Stock [Member]
Shares
Unvested balance, Beginning balance (in shares) | shares	21,677
Granted (in shares) | shares	0
Vested (in shares) | shares	(21,677)
Forfeited (in shares) | shares	0
Unvested balance, Ending balance (in shares) | shares	0
Weighted-Average Grant Date Fair Value
Unvested balance, Beginning balance (in dollars per share) | $ / shares	$ 10.88
Granted (in dollars per share) | $ / shares	0
Vested (in dollars per share) | $ / shares	10.88
Forfeited (in dollars per share) | $ / shares	0
Unvested balance, Ending Balance (in dollars per share) | $ / shares	$ 0
Restricted Stock Units (RSUs) [Member]
Shares
Unvested balance, Beginning balance (in shares) | shares	2,773,773
Granted (in shares) | shares	1,640,949
Vested (in shares) | shares	(914,289)
Forfeited (in shares) | shares	(251,205)
Unvested balance, Ending balance (in shares) | shares	3,249,228
Weighted-Average Grant Date Fair Value
Unvested balance, Beginning balance (in dollars per share) | $ / shares	$ 21.21
Granted (in dollars per share) | $ / shares	42.79
Vested (in dollars per share) | $ / shares	23.42
Forfeited (in dollars per share) | $ / shares	25.99
Unvested balance, Ending Balance (in dollars per share) | $ / shares	$ 31.12

Stock-Based Compensation Expe_6

Stock-Based Compensation Expense - Summary of Stock Option Activity (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)$ / sharesshares
Shares
Outstanding, Beginning balance (in shares) | shares	3,713,179
Granted (in shares) | shares	0
Exercised (in shares) | shares	(699,817)
Forfeited/canceled (in shares) | shares	(35,664)
Outstanding, Ending balance (in shares) | shares	2,977,698
Vested and exercisable (in shares) | shares	2,408,560
Weighted Average Exercise Price
Outstanding, Beginning balance (in dollars per share) | $ / shares	$ 10.32
Granted (in dollars per share) | $ / shares	0
Exercised (in dollars per share) | $ / shares	11.34
Forfeited/canceled (in dollars per share) | $ / shares	12.93
Outstanding, Ending balance (in dollars per share) | $ / shares	10.04
Vested and exercisable (in dollars per share) | $ / shares	$ 8.96
Weighted Average Remaining Contractual Life (in years)
Outstanding	5 years 3 months 18 days
Vested and exercisable	4 years 10 months 24 days
Aggregate Intrinsic Value
Exercised | $	$ 27,406
Outstanding | $	105,248
Vested and exercisable | $	$ 87,735

Net Loss per Share - Summary of

Net Loss per Share - Summary of Basic and Diluted Net Loss Per Share of Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Numerator:
Net loss	$ (14,406)	$ (11,831)	$ (39,499)	$ (42,525)
Denominator:
Weighted-average common shares outstanding, basic and diluted (in shares)	49,020,449	46,914,077	48,437,686	46,139,978
Net loss per share attributable to common stockholders, basic and diluted (in dollars per share)	$ (0.29)	$ (0.25)	$ (0.82)	$ (0.92)

Net Loss per Share - Summary _2

Net Loss per Share - Summary of Antidilutive Securities Excluded From Computation Diluted Weighted Average Shares Outstanding (Details) - $ / shares	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share amount (in shares)	6,237,748	6,931,594
The Notes [Member]
Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share [Line Items]
Strike price (in dollars per share)	$ 41.59
Unvested Restricted Stock [Member]
Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share amount (in shares)	0	68,409
Unvested Restricted Stock Units [Member]
Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share amount (in shares)	3,249,228	2,991,175
Employee Stock Purchase Plan [Member]
Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share amount (in shares)	10,822	16,651
Convertible Debt Securities [Member]
Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share amount (in shares)	5,500,000
Options to Purchase Common Stock [Member]
Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share amount (in shares)	2,977,698	3,855,359

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details)	1 Months Ended
	Oct. 31, 2018patent
Commitments and Contingencies Disclosure [Abstract]
Number of patents allegedly infringed	7

Segment Information and Infor_3

Segment Information and Information about Geographic Areas - Additional Information (Details) - Segment	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Number of operating segments		1
Total Net Revenues [Member] | United States [Member]
Segment Reporting Information [Line Items]
Percentage of net revenues	96.00%	97.00%	96.00%

Segment Information and Infor_4

Segment Information and Information about Geographic Areas - Net Revenues of Customer by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Net revenues, Total	$ 83,155	$ 62,365	$ 235,299	$ 175,321
North America [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Net revenues, Total	69,883	53,232	198,223	149,177
Other [Member]
Entity Wide Portfolio Carrying Amount, Major Customer [Line Items]
Net revenues, Total	$ 13,272	$ 9,133	$ 37,076	$ 26,144

Segment Information and Infor_5

Segment Information and Information about Geographic Areas - Property and Equipment, Net By Geographic Area (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net, Total	$ 51,519	$ 17,523
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net, Total	47,985	16,311
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net, Total	$ 3,534	$ 1,212

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details) - McAfee LLC [Member] $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2019USD ($)
Related Party Transaction [Line Items]
Sales and marketing expense related to partner referral fees	$ 0.2	$ 0.5
Due to related parties	$ 0.5	$ 0.5

Uncategorized Items - rpdq32019

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 25,873,000
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 25,873,000