10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(MARK ONE)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDED September 30, 2019

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM                       TO                     

COMMISSION FILE NUMBER 001-36680

HubSpot, Inc.

(Exact name of registrant as specified in its charter)

Delaware	20-2632791
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

25 First Street

Cambridge, Massachusetts, 02141

(Address of principal executive offices)

(888) 482-7768

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.001 per share	HUBS	New York Stock Exchange

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

Indicate by check mark whether the registrant has submitted electronically every Interactive Data file required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    YES  ☒    NO  ☐

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

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    YES  ☐    NO  ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    YES  ☐    NO  ☒

There were 42,821,424 shares of the registrant’s Common Stock issued and outstanding as of November 1, 2019.

HUBSPOT, INC.

Table of Contents

Part I — Financial Information
Item 1.	Unaudited Consolidated Financial Statements:
	Unaudited Consolidated Balance Sheets as of September 30, 2019 and December 31, 2018	4
	Unaudited Consolidated Statements of Operations for the Three and Nine Months Ended September 30, 2019 and 2018	5
	Unaudited Consolidated Statements of Comprehensive Loss for the Three and Nine Months Ended September 30, 2019 and 2018	6
	Unaudited Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2019 and 2018	7
	Notes to Unaudited Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	30
Item 4.	Controls and Procedures	31
Part II — Other Information
Item 1.	Legal Proceedings	32
Item 1A.	Risk Factors	32
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	51
Item 3.	Default Upon Senior Securities	51
Item 4.	Mine Safety Disclosures	51
Item 5.	Other Information	51
Item 6.	Exhibits	52
Signatures
EX-31.1	CERTIFICATION OF THE CEO PURSUANT TO SECTION 302
EX-31.2	CERTIFICATION OF THE CFO PURSUANT TO SECTION 302
EX-32.1	CERTIFICATION OF THE CEO AND CFO PURSUANT TO SECTION 906

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and these statements involve substantial risks and uncertainties. All statements other than statements of historical fact contained in this Quarterly Report on Form 10-Q are forward-looking statements.  Forward-looking statements generally relate to future events or our future financial or operating performance. In some cases, you can identify forward-looking statements because they contain words such as “may,” “should,” “expects,” “plans,” “anticipates,” “could,” “intends,” “target,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential” or “continue” or the negative of these words or other similar terms or expressions that concern our expectations, strategy, plans or intentions. Forward-looking statements contained in this Quarterly Report on Form 10-Q include, but are not limited to, statements about:

• our future financial performance, including our expectations regarding our revenue, cost of revenue, gross margin and operating expenses;

• maintaining and expanding our customer base and increasing our average subscription revenue per customer;

• the impact of competition in our industry and innovation by our competitors;

• our anticipated growth and expectations regarding our ability to manage our future growth;

• our anticipated areas of investments, including sales and marketing, research and development, customer service and support, data center infrastructure and service capabilities, and expectations relating to such investments;

• our predictions about industry and market trends;

• our ability to anticipate and address the evolution of technology and the technological needs of our customers, to roll-out upgrades to our existing software platform and to develop new and enhanced applications to meet the needs of our customers;

• our ability to maintain our brand and inbound marketing, selling and servicing thought leadership position;

• the impact of our corporate culture and our ability to attract, hire and retain necessary qualified employees to expand our operations;

• the anticipated effect on our business of litigation to which we are or may become a party;

• our ability to successfully acquire and integrate companies and assets;

• the U.S. federal tax consequences due to dividends received as part of the move to a territorial tax system for foreign subsidiary earnings;

• our plans regarding declaring or paying cash dividends in the foreseeable future; and

• our ability to stay abreast of new or modified laws and regulations that currently apply or become applicable to our business both in the United States and internationally.

We caution you that the foregoing list may not contain all of the forward-looking statements made in this Quarterly Report on Form 10-Q.

You should not rely upon forward-looking statements as predictions of future events. We have based the forward-looking statements contained in this Quarterly Report on Form 10-Q primarily on our current expectations and projections about future events and trends that we believe may affect our business, financial condition, results of operations and prospects. The outcome of the events described in these forward-looking statements is subject to risks, uncertainties and other factors described in “Risk Factors” and elsewhere in this Quarterly Report on Form 10-Q. Moreover, we operate in a very competitive and rapidly changing environment. New risks and uncertainties emerge from time to time, and it is not possible for us to predict all risks and uncertainties that could have an impact on the forward-looking statements contained in this Quarterly Report on Form 10-Q. The results, events and circumstances reflected in the forward-looking statements may not be achieved or occur, and actual results, events or circumstances could differ materially from those described in the forward-looking statements.

The forward-looking statements made in this Quarterly Report on Form 10-Q relate only to events as of the date on which the statements are made. We undertake no obligation to update any forward-looking statements made in this Quarterly Report on Form 10-Q to reflect events or circumstances after the date of this Quarterly Report on Form 10-Q or to reflect new information or the occurrence of unanticipated events, except as required by law.

We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements and you should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures or investments we may make.

In this Quarterly Report on Form 10-Q, the terms “HubSpot,” “we,” “us,” and “our” refer to HubSpot, Inc. and its subsidiaries, unless the context indicates otherwise.

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PART I — Financial Information

Item 1. Financial Statements

HubSpot, Inc.

Unaudited Consolidated Balance Sheets

(in thousands)

	September 30,			December 31,
	2019			2018
Assets
Current assets:
Cash and cash equivalents	$	225,770		$	111,489
Short-term investments		722,767			480,761
Accounts receivable — net of allowance for doubtful accounts of $1,258 and $1,317    at September 30, 2019 and December 31, 2018, respectively		77,551			77,100
Deferred commission expense		29,080			23,664
Restricted cash		6,019			5,175
Prepaid expenses and other current assets		20,052			14,229
Total current assets		1,081,239			712,418
Long-term investments		59,783			11,450
Property and equipment, net		63,959			52,468
Capitalized software development costs, net		15,095			12,746
Right-of-use assets		215,797			—
Deferred commission expense, net of current portion		17,608			18,114
Other assets		7,894			6,888
Intangible assets, net		2,556			4,919
Goodwill		14,950			14,950
Total assets	$	1,478,881		$	833,953
Liabilities and stockholders’ equity
Current liabilities:
Accounts payable	$	14,882		$	7,810
Accrued compensation costs		23,913			23,589
Accrued expenses and other current liabilities		25,706			22,305
Lease liabilities		15,646			—
Deferred revenue		200,771			183,305
Total current liabilities		280,918			237,009
Lease liabilities, net of current portion		225,628			—
Deferred rent, net of current portion		—			26,445
Deferred revenue, net of current portion		2,835			2,179
Other long-term liabilities		6,182			4,897
Convertible senior notes		334,966			318,782
Total liabilities		850,529			589,312
Commitments and contingencies (Note 10)
Stockholders’ equity:
Common stock		43			40
Additional paid-in capital		1,017,046			589,708
Accumulated other comprehensive loss		(909	)		(723	)
Accumulated deficit		(387,828	)		(344,384	)
Total stockholders’ equity		628,352			244,641
Total liabilities and stockholders’ equity	$	1,478,881		$	833,953

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

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HubSpot, Inc.

Unaudited Consolidated Statements of Operations

(in thousands, except per share data)

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2019			2018			2019			2018
Revenues:
Subscription	$	167,078		$	125,478		$	467,180		$	350,646
Professional services and other		6,543			6,348			21,494			18,312
Total revenue		173,621			131,826			488,674			368,958
Cost of revenues:
Subscription		25,671			17,777			70,550			49,976
Professional services and other		7,592			7,988			23,433			23,017
Total cost of revenues		33,263			25,765			93,983			72,993
Gross profit		140,358			106,061			394,691			295,965
Operating expenses:
Research and development		39,847			30,761			115,480			85,598
Sales and marketing		91,283			71,293			250,267			196,484
General and administrative		23,300			19,057			67,777			54,309
Total operating expenses		154,430			121,111			433,524			336,391
Loss from operations		(14,072	)		(15,050	)		(38,833	)		(40,426	)
Other expense:
Interest income		5,185			2,416			14,783			6,332
Interest expense		(5,760	)		(5,393	)		(16,946	)		(15,893	)
Other expense		(89	)		(277	)		(773	)		(1,087	)
Total other expense		(664	)		(3,254	)		(2,936	)		(10,648	)
Loss before income tax expense		(14,736	)		(18,304	)		(41,769	)		(51,074	)
Income tax expense		(251	)		(359	)		(1,675	)		(1,262	)
Net loss	$	(14,987	)	$	(18,663	)	$	(43,444	)	$	(52,336	)
Net loss per share, basic and diluted	$	(0.35	)	$	(0.48	)	$	(1.04	)	$	(1.37	)
Weighted average common shares used in computing basic    and diluted net loss per share:		42,531			38,762			41,749			38,319

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

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HubSpot, Inc.

Unaudited Consolidated Statements of Comprehensive Loss

(in thousands)

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2019			2018			2019			2018
Net loss	$	(14,987	)	$	(18,663	)	$	(43,444	)	$	(52,336	)
Other comprehensive loss:
Foreign currency translation adjustment		(947	)		(127	)		(997	)		(548	)
Changes in unrealized gain (loss) on investments, net of income    taxes of $(12) thousand and $257 thousand for the three and    nine months ended September 30, 2019, respectively, and $0    for the three and nine months ended September 30, 2018.		(203	)		72			811			(164	)
Comprehensive loss	$	(16,137	)	$	(18,718	)	$	(43,630	)	$	(53,048	)

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

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HubSpot, Inc.

Unaudited Consolidated Statements of Cash Flows

(in thousands)

	For the Nine Months Ended September 30,
	2019			2018
Operating Activities:
Net loss	$	(43,444	)	$	(52,336	)
Adjustments to reconcile net loss to net cash and cash equivalents provided    by operating activities
Depreciation and amortization		21,248			16,539
Stock-based compensation		73,659			55,334
Provision for deferred income taxes		49			43
Amortization of debt discount and issuance costs		16,184			15,103
Accretion of bond discount		(10,889	)		(4,517	)
Noncash lease expense		—			1,972
Unrealized currency translation		(193	)		215
Changes in assets and liabilities
Accounts receivable		(1,346	)		(3,266	)
Prepaid expenses and other assets		(6,217	)		823
Deferred commission expense		(5,551	)		(15,887	)
Right-of-use assets		14,310			—
Accounts payable		6,195			4,262
Accrued expenses and other liabilities		955			3,755
Lease liabilities		(14,788	)		—
Deferred rent		—			3,987
Deferred revenue		20,910			25,713
Net cash and cash equivalents provided by operating activities		71,082			51,740
Investing Activities:
Purchases of investments		(967,994	)		(524,838	)
Maturities of investments		689,614			498,850
Purchases of property and equipment		(21,197	)		(16,688	)
Capitalization of software development costs		(9,139	)		(8,726	)
Purchases of strategic investments		(553	)		(300	)
Net cash and cash equivalents used in investing activities		(309,269	)		(51,702	)
Financing Activities:
Proceeds from common stock offering, net of offering costs paid of $365		342,628			—
Employee taxes paid related to the net share settlement of stock-based awards		(4,767	)		(5,933	)
Proceeds related to the issuance of common stock under stock plans		18,926			16,769
Repayments of finance lease obligations		(249	)		(592	)
Net cash and cash equivalents provided by financing activities		356,538			10,244
Effect of exchange rate changes on cash, cash equivalents, and restricted cash		(2,171	)		(1,319	)
Net increase in cash, cash equivalents and restricted cash		116,180			8,963
Cash, cash equivalents and restricted cash, beginning of period		117,114			92,784
Cash, cash equivalents and restricted cash, end of period	$	233,294		$	101,747
Supplemental cash flow disclosure:
Cash paid for interest	$	503		$	527
Cash paid for income taxes	$	2,395		$	1,016
Right of use assets obtained in exchange for operating lease liabilities	$	81,744		$	—
Non-cash investing and financing activities:
Capital expenditures incurred but not yet paid	$	1,871		$	2,018
Asset retirement obligations	$	1,106		$	347

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

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HubSpot, Inc.

Notes to Unaudited Consolidated Financial Statements

1. Organization and Operations

HubSpot, Inc. (the “Company”) provides a cloud-based inbound marketing, sales and customer service platform, which is referred to in this document as the Company’s Growth Platform, that enables businesses to grow better. The Company’s Growth Platform, comprised of Marketing Hub, Sales Hub, Service Hub, and a free customer relationship management, or CRM system, features integrated applications and tools that enable businesses to create a cohesive and adaptable customer experience throughout the customer lifecycle.

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) applicable to interim periods, under the rules and regulations of the United States Securities and Exchange Commission (“SEC”). In the opinion of management, the Company has prepared the accompanying unaudited consolidated financial statements on a basis substantially consistent with the audited consolidated financial statements of the Company as of and for the year ended December 31, 2018, and these consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of the results of the interim periods presented. All intercompany balances and transactions have been eliminated in consolidation.   

The results of operations for the interim periods presented are not necessarily indicative of the results to be expected for any subsequent quarter or for the entire year ending December 31, 2019. The year-end balance sheet data was derived from audited financial statements, but this Form 10-Q does not include all disclosures required under GAAP. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted under the rules and regulations of the SEC.

These interim financial statements should be read in conjunction with the audited consolidated financial statements and related notes contained in the Company’s Annual Report on Form 10-K filed with the SEC on February 12, 2019. There have been no changes in the Company’s significant accounting policies from those that were disclosed in the Company’s Annual Report on Form 10-K that have had a material impact on our consolidated financial statements and related notes, except the adoption of updated guidance related to accounting for leases as described within Note 2 of these consolidated financial statements.

On February 19, 2019, the Company closed a common stock offering whereby 2.2 million shares of common stock were sold. The Company received aggregate proceeds of approximately $343.0 million from the offering, net of underwriters’ discounts and commissions, but before deduction of offering expenses of approximately $0.4 million.

Recent Accounting Pronouncements

Recent accounting standards not included below are not expected to have a material impact on our consolidated financial position and results of operations.

In June 2018, the Financial Accounting Standards Board (“FASB”) issued guidance for stock-based compensation to include share-based payment transactions for acquiring goods and services from nonemployees. The guidance was adopted on January 1, 2019 and did not have a material impact on the consolidated financial statements.

In January 2017, the FASB issued guidance simplifying the accounting for goodwill impairment by removing Step 2 of the goodwill impairment test. Under current guidance, Step 2 of the goodwill impairment test requires entities to calculate the implied fair value of goodwill in the same manner as the amount of goodwill recognized in a business combination by assigning the fair value of a reporting unit to all of the assets and liabilities of the reporting unit. The carrying value in excess of the implied fair value is recognized as goodwill impairment. Under the new standard, goodwill impairment is recognized based on Step 1 of the current guidance, which calculates the carrying value in excess of the reporting unit’s fair value. The new standard is effective beginning in January 2020, with early adoption permitted. The Company does not believe the adoption of this guidance will have a material impact on the consolidated financial statements.

In June 2016, the FASB issued guidance that introduces a new methodology for accounting for credit losses on financial instruments. The guidance establishes a new forward-looking "expected loss model" that requires entities to estimate current expected credit losses on accounts receivable and financial instruments by using all practical and relevant information. The guidance will be effective for the Company on January 1, 2020. Adoption of the standard will be applied using a modified retrospective approach through a cumulative-effect adjustment to retained earnings as of the effective date. The Company does not believe the adoption of this guidance will have a material impact on the consolidated financial statements.

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In February 2016, the FASB issued guidance related to leases to increase transparency and comparability among organizations by requiring the recognition of right-of-use assets and lease liabilities on the balance sheet, while maintaining consistency with historical accounting for the recognition of expense on their income statements. Most prominent among the changes in the guidance is the recognition of right-of-use assets and lease liabilities by lessees for those leases classified as operating leases. Additional disclosures are required to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases.  The Company adopted the updated guidance as of January 1, 2019 using a modified retrospective transition method with a cumulative-effect adjustment as of the adoption date, as permitted by the guidance. Comparative periods are not adjusted.  See Note 2 of these consolidated financial statements for further details.

2. Leases

Adoption of Updated Leasing Guidance

On January 1, 2019, the Company adopted the new lease guidance using a modified retrospective transition method applied to those leases which were not completed as of January 1, 2019. Results for reporting periods beginning after December 31, 2018 are presented under the new guidance, while prior period comparative amounts are not adjusted and continue to be reported in accordance with historical guidance.  The Company applied the new standard using the package of practical expedients permitted under the transition guidance where the Company:

• did not reassess whether any expired or existing contracts contain a lease;

• did not reassess the classification of existing leases; and

• did not reassess initial direct costs for any existing leases.

In addition, the Company elected the hindsight practical expedient to determine the lease term for existing leases.

The resulting impact, as of the adoption date, to the consolidated balance sheet of applying the new guidance in 2019 versus the prior guidance was an increase to right-of-use assets of $152.2 million, a decrease to other assets of $0.3 million, an increase to total assets of $151.9 million, an increase to short-term lease liabilities of $14.1 million, a decrease to accrued expenses and other current liabilities of $0.5 million, an increase to total current liabilities of $13.5 million, an increase to long-term lease liabilities of $164.8 million, a decrease to deferred rent, net of current portion, of $26.4 million and an increase to total liabilities of $151.9 million. There was no impact to stockholders’ equity or the consolidated statements of operations as a result of adopting the new guidance.  There was no impact to total operating or financing cash flows of applying the new guidance in 2019 versus the prior guidance other than renaming or adding line items to the statements of cash flows to conform to the accounting for, and presentation of, the new standard.

The Company determines if an arrangement contains a lease at inception and does not separate lease and non-lease components of an arrangement determined to contain a lease. Operating and finance leases with a duration of less than 12 months are excluded from right-of-use-assets and lease liabilities and related expense is recorded as incurred.

The Company leases its office facilities under non-cancelable operating leases that expire at various dates through May 2031. Certain leases contain optional termination dates. The table below only considers lease obligations through the optional termination dates, as the Company is not reasonably certain to extend lease agreements beyond those dates.

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The following table provides a summary of lease assets and liabilities as of September 30, 2019:

Leases	Balance sheet classification	Amount (in thousands)
Assets:
Operating lease assets	Right-of-use assets	$	215,797
Finance lease assets	Fixed assets		96
Total leased assets		$	215,893
Liabilities:
Current
Operating lease liabilities	Lease liabilities	$	15,646
Finance lease liabilities	Accrued expenses and other current liabilities		57
Noncurrent
Operating	Lease liabilities, net of current portion		225,628
Total lease liabilities		$	241,331

Operating lease costs were $9.0 million for the three months ended September 30, 2019, net of $0.6 million of operating sublease income related to certain office facilities subleased to third parties. Operating lease costs were $23.4 million for the nine months ended September 30, 2019, net of $1.7 million of operating sublease income related to certain office facilities subleased to third parties. Finance lease costs consisted of $0 million related to the amortization finance lease assets and $0 million of interest expense for the three months ended September 30, 2019. Finance lease costs consisted of $0.2 million related to the amortization finance lease assets and $0.1 million of interest expense for the nine months ended September 30, 2019.

The following table provides a reconciliation between non-cancelable lease commitments and lease liabilities as of September 30, 2019:

	Operating leases			Finance Leases
Lease commitments (Note 10)	$	357,756		$	57
Less: Legally binding minimum lease payments for    leases signed but not yet commenced		(41,314	)		—
Less: Present value discount		(75,168	)		—
Total lease liabilities	$	241,274		$	57

Lease Term and Discount Rate

The Company uses its estimated incremental borrowing rate, which is derived from information available at the lease commencement date, in determining the present value of operating lease payments. To determine the estimated incremental borrowing rate, the Company uses publicly available credit ratings for peer companies. The Company estimates the incremental borrowing rate using yields for maturities that are in line with the duration of the lease payments.

The following table provides weighted average remaining lease terms and weighted average discount rate for operating and finance leases as of September 30, 2019:

Weighted-average remaining lease term:
Operating leases	9.5 years
Finance leases	0.5 years
Weighted-average discount rate:
Operating leases	5.8%
Finance leases	3.8%

Other Information

Cash payments related to our operating lease liabilities were $8.3 million for the three months ended September 30, 2019 and $23.0 million for the nine months ended September 30, 2019. Cash payments related to our financing lease liabilities were $0 million for the three months ended September 30, 2019 and $0.2 million for the nine months ended September 30, 2019.

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3. Revenues

Disaggregation of Revenue

The Company provides disaggregation of revenue based on geographic region (Note 14) and based on the subscription versus professional services and other classification on the consolidated statements of operations as it believes these best depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors.

Deferred Revenue, Deferred Commission Expense, and Accrued Expenses and Other Current Liabilities

Amounts that have been invoiced are recorded in accounts receivable and deferred revenue or revenue, depending on whether the revenue recognition criteria have been met. Deferred revenue represents amounts billed for which revenue has not yet been recognized. Deferred revenue that will be recognized during the succeeding 12-month period is recorded as current deferred revenue, and the remaining portion is recorded as long-term deferred revenue.  Deferred revenue during the nine months ended September 30, 2019 increased by $18.1 million resulting from $506.8 million of additional invoicing and was offset by revenue recognized of $488.7 million during the same period. $105.1 million of revenue was recognized during the three month period ended September 30, 2019 that was included in deferred revenue at the beginning of the period. $163.2 million of revenue was recognized during the nine month period ended September 30, 2019 that was included in deferred revenue at the beginning of the period. As of September 30, 2019, approximately $153.5 million of revenue is expected to be recognized from remaining performance obligations for contracts with original performance obligations that exceed one year.  The Company expects to recognize revenue on approximately 94.3% of these remaining performance obligations over the next 24 months, with the balance recognized thereafter.  

Additional contract liabilities of $1.4 million and $1.6 million were included in accrued expenses and other current liabilities on the consolidated balance sheet as of September 30, 2019 and December 31, 2018.

The incremental direct costs of obtaining a contract, which primarily consist of sales commissions paid for new subscription contracts, are deferred and amortized on a straight-line basis over a period of approximately one to three years.  The one to three-year period has been determined by taking into consideration the type of product sold, the commitment term of the customer contract, the nature of the Company’s technology development life-cycle, and an estimated customer relationship period.  Sales commissions for upgrade contracts are deferred and amortized on a straight-line basis over the remaining estimated customer relationship period of the related customer.  Deferred commission expense that will be recorded as expense during the succeeding 12-month period is recorded as current deferred commission expense, and the remaining portion is recorded as long-term deferred commission expense. Deferred commission expense during the three months ended September 30, 2019 decreased by $0.6 million as a result of deferring incremental costs of obtaining a contract of $8.5 million and was offset by amortization of $9.1 million during the same period. Deferred commission expense during the nine months ended September 30, 2019 increased by $4.9 million as a result of deferring incremental costs of obtaining a contract of $28.8 million and was offset by amortization of $23.9 million during the same period.  

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4. Net Loss per Share

Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding for the period. Diluted net loss per share is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period. For purposes of this calculation, options to purchase common stock, restricted stock units (“RSUs”), Employee Stock Purchase Plan (“ESPP”), common stock warrants, and the Conversion Option of the 2022 Notes are considered to be potential common stock equivalents.

A reconciliation of the denominator used in the calculation of basic and diluted net loss per share is as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
		2019			2018			2019			2018
Net loss	$	(14,987	)	$	(18,663	)	$	(43,444	)	$	(52,336	)
Weighted-average common shares    outstanding — basic		42,531			38,762			41,749			38,319
Dilutive effect of share equivalents resulting    from stock options, RSUs, ESPP,    common stock warrants and the Conversion    Option of the 2022 Notes		—			—			—			—
Weighted-average common shares,    outstanding — diluted		42,531			38,762			41,749			38,319
Net loss per share, basic and diluted	$	(0.35	)	$	(0.48	)	$	(1.04	)	$	(1.37	)

Additionally, since the Company incurred net losses for each of the periods presented, diluted net loss per share is the same as basic net loss per share. The Company’s outstanding stock options, RSUs, ESPP, common stock warrants, and Conversion Option of the 2022 Notes were not included in the calculation of diluted net loss per share as the effect would be anti-dilutive. The following table contains all potentially dilutive common stock equivalents.

	As of September 30,
		2019	2018
	(in thousands)
Options to purchase common shares		1,532	1,905
RSUs		1,688	2,020
Conversion option of the 2022 Notes		1,995	1,311
Common stock warrants		1,500	664
ESPP		8	29

The Company expects to settle the principal amount of the 2022 Notes (Note 9) in cash, and therefore, the Company uses the treasury stock method for calculating any potential dilutive effect of the Conversion Option on diluted net income per share, if applicable. The Conversion Option will have a dilutive impact on net income per share of common stock when the average market price of the Company’s common stock for a given period exceeds the conversion price of the 2022 Notes of $94.77 per share. Because the last reported sale price of the Company’s common stock for at least 20 trading days during the period of 30 consecutive trading days ending on the last trading day of the calendar quarter ended September 30, 2019 was equal to or greater than 130% of the applicable conversion price on each applicable trading day, the 2022 Notes are convertible at the option of the holders thereof during the calendar quarter ending December 31, 2019. As of November 1, 2019, the Company has received conversion notices for approximately $8 thousand of the principal balance of the 2022 Notes, which will be settled in cash during the quarter ended December 31, 2019.

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5. Fair Value of Financial Instruments

The Company measures certain financial assets 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 — Quoted prices in active markets for identical assets or liabilities.

• 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 to the valuation methodology that are significant to the measurement of fair value of assets or liabilities.

The following table details the fair value measurements within the fair value hierarchy of the Company’s financial assets and liabilities at September 30, 2019 and December 31, 2018:

	September 30, 2019
	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents and investments:
Money market funds	$	115,376	$	—	$	—	$	115,376
Corporate bonds		—		83,426		—		83,426
U.S. Treasury securities		—		699,123		—		699,123
Restricted cash:
Certificates of deposit		—		5,569		—		5,569
Money market funds		—		1,955		—		1,955
Total	$	115,376	$	790,073	$	—	$	905,449

	December 31, 2018
	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents and investments:
Money market funds	$	1,579	$	—	$	—	$	1,579
Commercial paper		—		8,242		—		8,242
Corporate bonds		—		70,728		—		70,728
U.S. Treasury securities		—		413,241		—		413,241
Restricted cash:
Certificates of deposit		—		5,625		—		5,625
Total	$	1,579	$	497,836	$	—	$	499,415

The Company considers all highly liquid investments purchased with a remaining maturity of three months or less to be cash equivalents. The fair value of the Company’s investments in certain money market funds is their face value and such instruments are classified as Level 1 and are included in cash and cash equivalents on the consolidated balance sheets. At September 30, 2019 and December 31, 2018, our Level 2 securities were priced by pricing vendors. These pricing vendors utilize the most recent observable market information in pricing these securities or, if specific prices are not available for these securities, use other observable inputs like market transactions involving identical or comparable securities.

As of September 30, 2019 the fair value of the 2022 Notes was $659.4 million.  The fair value was determined based on the quoted price of the 2022 Notes in an inactive market on the last trading day of the reporting period and has been classified as Level 2 within the fair value hierarchy.

For certain other financial instruments, including accounts receivable, accounts payable, capital leases and other current liabilities, the carrying amounts approximate their fair value due to the relatively short maturity of these balances.

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Strategic investments consist of non-controlling equity investments in privately held companies. The Company elected the measurement alternative for these investments without readily determinable fair values and for which the Company does not have the ability to exercise significant influence. These investments are accounted for under the cost method of accounting. Under the cost method of accounting, the non-marketable equity securities are carried at cost less any impairment, plus or minus adjustments resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer, which is recorded within the statement of operations. The Company holds $4.6 million without readily determinable fair values at September 30, 2019 and $4.0 million of investments without readily determinable fair values at December 31, 2018. These investments are included in other assets on the consolidated balance sheets. There have been no adjustments to the carrying value of strategic investments resulting from impairments or observable price changes.

The following tables summarize the composition of our short- and long-term investments at September 30, 2019 and December 31, 2018.

	September 30, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses			Aggregate Fair Value
	(in thousands)
Corporate bonds	$	83,174	$	269	$	(17	)	$	83,426
U.S. Treasury securities		698,632		491		—		$	699,123
Total	$	781,806	$	760	$	(17	)	$	782,549

	December 31, 2018
	Amortized Cost		Unrealized Gains		Unrealized Losses			Aggregate Fair Value
	(in thousands)
Commercial paper	$	8,256	$	—	$	(14	)	$	8,242
Corporate bonds		70,958		3		(233	)		70,728
U.S. Treasury securities		413,323		56		(138	)		413,241
Total	$	492,537	$	59	$	(385	)	$	492,211

For all of our securities for which the amortized cost basis was greater than the fair value at September 30, 2019, the Company has concluded that there is no plan to sell the security nor is it more likely than not that the Company would be required to sell the security before its anticipated recovery. In making the determination as to whether the unrealized loss is other-than-temporary, the Company considered the length of time and extent the investment has been in an unrealized loss position, the financial condition and near-term prospects of the issuers, the issuers’ credit rating and the time to maturity.

Contractual Maturities

The contractual maturities of short-term and long-term investments held at September 30, 2019 and December 31, 2018 are as follows:

	September 30, 2019				December 31, 2018
	Amortized Cost Basis		Aggregate Fair Value		Amortized Cost Basis		Aggregate Fair Value
	(in thousands)				(in thousands)
Due within one year	$	722,251	$	722,767	$	481,071	$	480,761
Due after 1 year through 2 years		59,555		59,782		11,466		11,450
Total	$	781,806	$	782,549	$	492,537	$	492,211

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6. Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statement of cash flows for the nine months ended September 30, 2019 and 2018.

	September 30, 2019		September 30, 2018		December 31,  2018
	(in thousands)
Cash and cash equivalents	$	225,770	$	96,122	$	111,489
Restricted cash		6,019		5,175		5,175
Restricted cash, included in other assets		1,505		450		450
Total cash, cash equivalents, and restricted cash	$	233,294	$	101,747	$	117,114

Restricted cash is comprised of money market funds and certificates of deposit related to landlord guarantees for our leased facilities. These restricted cash balances have been excluded from our cash and cash equivalents balance on our consolidated balance sheets.

7. Property and Equipment, Net

Property and equipment, net consists of the following:

	September 30, 2019			December 31, 2018
	(in thousands)
Computer equipment and purchased software	$	9,747		$	8,163
Employee computer equipment		12,304			8,972
Furniture and fixtures		14,053			13,019
Office equipment		2,551			2,551
Leasehold improvements		50,932			42,894
Equipment under capital lease		3,450			3,450
Internal-use software		6,931			5,363
Construction in progress		8,879			2,498
Total property and equipment		108,847			86,910
Less accumulated depreciation and amortization		(44,888	)		(34,442	)
Property and equipment, net	$	63,959		$	52,468

Depreciation and amortization expense on property and equipment was $3.8 million for the three months ended September 30, 2019, $11.2 million for the nine months ended September 30, 2019, $3.2 million for the three months ended September 30, 2018 and $9.3 million for the nine months ended September 30, 2018.  

8. Capitalized Software Development Costs

Capitalized software development costs, exclusive of those recorded within property and equipment, consisted of the following:

	September 30, 2019			December 31, 2018
	(in thousands)
Gross capitalized software development costs	$	56,794		$	46,169
Accumulated amortization		(41,699	)		(33,423	)
Capitalized software development costs, net	$	15,095		$	12,746

Capitalized software development costs are amortized on a straight-line basis over their estimated useful life of two years.

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The following table summarizes software development costs capitalized, stock-based compensation included in capitalized software development costs, and amortization of capitalized software development costs.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Software development cost capitalized	$	4,388	$	3,439	$	10,625	$	9,960
Stock-based compensation included in capitalized software development costs	$	640	$	563	$	1,755	$	1,910
Amortization of capitalized software development costs	$	2,661	$	2,293	$	7,727	$	6,620

9. 0.25% Convertible Senior Notes, Convertible Note Hedge and Warrant

In May 2017, the Company issued $350 million aggregate principal amount of 0.25% convertible senior notes due June 1, 2022 in a private offering and an additional $50 million aggregate principal amount of such notes pursuant to the exercise in full of the over-allotment options of the initial purchasers (the “2022 Notes”). The 2022 Notes are convertible at the option of the holders prior to the close of business on the business day immediately preceding February 1, 2022 under certain conditions or upon the occurrence of certain events. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of the Company’s common stock or a combination of cash and shares of the Company’s common stock, at the Company’s election. Because the last reported sale price of the Company’s common stock for at least 20 trading days during the period of 30 consecutive trading days ending on the last trading day of the calendar quarter ended September 30, 2019 was equal to or greater than 130% of the applicable conversion price on each applicable trading day, the 2022 Notes are convertible at the option of the holders thereof during the calendar quarter ending December 31, 2019. As of November 1, 2019, the Company has received conversion notices for approximately $8 thousand of the principal balance of the 2022 Notes, which will be settled in cash during the quarter ended December 31, 2019.

The net carrying amount of the liability component of the 2022 Notes is as follows:

	As of September 30, 2019			As of December 31, 2018
	(in thousands)
Principal	$	400,000		$	400,000
Unamortized debt discount		(60,516	)		(75,575	)
Unamortized issuance costs		(4,518	)		(5,643	)
Net carrying amount	$	334,966		$	318,782

Interest expense related to the 2022 Notes is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Contractual interest expense	$	250	$	250	$	750	$	750
Amortization of debt discount		5,126		4,784		15,060		14,054
Amortization of issuance costs		383		357		1,124		1,049
Total interest expense	$	5,759	$	5,391	$	16,934	$	15,853

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10. Commitments and Contingencies

Contractual Obligations

The Company leases its office facilities under non-cancelable operating leases that expire at various dates through May 2031. Lease expense for non-cancelable operating leases with free rental periods or scheduled rent increases is recognized on a straight-line basis over the terms of the leases. Improvement reimbursements from landlords of $13.8 million are being amortized on a straight-line basis into lease expense over the terms of the leases.  Certain leases contain optional termination dates. The table below only includes payments up to the optional termination date. If the Company were to extend leases beyond the optional termination date the future commitments would increase by approximately $80.2 million.

Included in the table below are operating lease commitments for leases that have not yet commenced of approximately $41.3 million for facilities with lease terms of approximately 10 years in the United States, 4 years in Singapore, and 1 year in Colombia.

Future minimum payments under all operating and finance lease agreements as of September 30, 2019 are as follows:

	Operating		Finance
	(in thousands)
2019	$	7,326		57
2020		36,782		—
2021		39,957		—
2022		39,875		—
2023		39,542		—
Thereafter		194,274		—
Total	$	357,756		57
Less: Portion representing interest				—
Capital lease obligation				57

In October 2019, the Company entered into a new 10 year lease in Germany. The new lease commences on or near June 1, 2020. The Company will pay an aggregate of approximately $29.1 million in incremental rent over the lease term.

As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting standard, ASC 840, Leases, the future minimum payments under all operating and finance lease agreements as of December 31, 2018 are as follows:

	Operating		Finance
	(in thousands)
2019	$	27,755	$	298
2020		33,769		33
2021		35,414		—
2022		35,314		—
2023		35,686		—
Thereafter		184,341		—
Total	$	352,279		331
Less: Portion representing interest				(20	)
Capital lease obligation			$	311

There were no material changes in our vendor commitments under non-cancelable arrangements, as disclosed in the Company’s audited consolidated financial statements for the year ended December 31, 2018 and related notes thereto contained in the Company’s Annual Report on Form 10-K, except as disclosed below:

In March 2019, the Company exercised an option to extend an agreement with a technology vendor for an additional two years through June 2023. The Company’s additional contractual obligation under this agreement are approximately $57 million over the additional two years.

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Legal Contingencies

From time to time, the Company may become a party to litigation and subject to claims incident to the ordinary course of business, including intellectual property claims, labor and employment claims, and threatened claims, breach of contract claims, tax, and other matters. The Company currently has no material pending litigation.

11. Changes in Stockholders’ Equity

The following tables summarize the changes in stockholders’ equity for the nine months ended September 30, 2019 and 2018.

	Common Stock, $0.001 Par Value				Additional Paid-In		Accumulated Other Comprehensive			Accumulated
	Shares		Amount		Capital		Loss			Deficit			Total
Balances at December 31, 2018		39,300	$	40	$	589,708	$	(723	)	$	(344,384	)	$	244,641
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		825		1		7,756		—			—			7,757
Issuance of common stock in relation to    common stock offering, net of offering costs    incurred $365		2,151		2		342,628		—			—			342,630
Stock-based compensation		—		—		50,609					—			50,609
Cumulative translation adjustment		—		—		—		(50	)		—			(50	)
Unrealized gain on investments, net of income    taxes of $269		—		—		—		1,014			—			1,014
Net loss		—		—		—		—			(28,457	)		(28,457	)
Balances at June 30, 2019		42,276	$	43	$	990,701	$	241		$	(372,841	)	$	618,144
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		363	$	—	$	2,184	$	—		$	—		$	2,184
Stock-based compensation		—		—		24,161		—			—			24,161
Cumulative translation adjustment		—		—		—		(947	)		—			(947	)
Unrealized loss on investments, net of income    taxes of $(12)		—		—		—		(203	)		—			(203	)
Net loss		—		—		—		—			(14,987	)		(14,987	)
Balances at September 30, 2019		42,639	$	43	$	1,017,046	$	(909	)	$	(387,828	)	$	628,352

	Common Stock, $0.001 Par Value				Additional Paid-In		Accumulated Other Comprehensive			Accumulated
	Shares		Amount		Capital		Loss			Deficit			Total
Balances at December 31, 2017		37,503	$	38	$	496,461	$	(57	)	$	(286,082	)	$	210,360
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		1,030		1		9,015		—			—			9,016
Stock-based compensation		—		—		37,067		—			—			37,067
Cumulative adjustment from adoption of    revenue recognition standard		—		—		—		—			5,526			5,526
Cumulative translation adjustment		—		—		—		(422	)		—			(422	)
Unrealized loss on investments, net of income    taxes of $0		—		—		—		(235	)		—			(235	)
Net loss		—		—		—		—			(33,673	)		(33,673	)
Balances at June 30, 2018		38,533	$	39	$	542,543	$	(714	)	$	(314,229	)	$	227,639
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		374	$	1	$	358	$	—		$	—		$	359
Stock-based compensation		—		—		20,133		—			—			20,133
Cumulative translation adjustment		—		—		—		(126	)		—			(126	)
Unrealized gain on investments, net of income    taxes of $0		—		—		—		71			—			71
Net loss		—		—		—		—			(18,663	)		(18,663	)
Balances at September 30, 2018		38,907	$	40	$	563,034	$	(769	)	$	(332,892	)	$	229,413

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12. Changes in Accumulated Other Comprehensive Loss

The following table summarizes the changes in accumulated other comprehensive loss, which is reported as a component of stockholders’ equity, for the nine months ended September 30, 2019.

	Cumulative Translation Adjustment			Unrealized Gain on Investments			Total
	(in thousands)
Beginning balance at January 1, 2019	$	(397	)	$	(326	)	$	(723	)
Other comprehensive loss before reclassifications		(997	)		811		$	(186	)
Amounts reclassified from accumulated other    comprehensive income		—			—			—
Ending balance at September 30, 2019	$	(1,394	)	$	485		$	(909	)

13. Stock-Based Compensation Expense

The following two tables show stock-based compensation expense by award type and where the stock-based compensation expense is recorded in the Company’s consolidated statements of operations:

	Three Months End September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Options	$	1,199	$	1,257	$	3,871	$	3,850
RSUs		21,406		17,583		66,227		49,624
Employee stock purchase plan		1,186		772		3,561		1,860
Total stock-based compensation expense	$	23,791	$	19,612	$	73,659	$	55,334

Effect of stock-based compensation expense on income by line item:

	Three Months End September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Cost of revenue, subscription	$	854	$	391	$	2,291	$	985
Cost of revenue, professional services and other		614		803		2,298		2,339
Research and development		8,019		5,990		25,663		16,866
Sales and marketing		8,947		7,898		27,275		22,327
General and administrative		5,357		4,530		16,132		12,817
Total stock-based compensation expense	$	23,791	$	19,612	$	73,659	$	55,334

Capitalized software development costs excluded from stock-based compensation expense is $640 thousand for the three months ended September 30, 2019, $1.8 million for the nine months ended September 30, 2019, $563 thousand for the three months ended September 30, 2018, and $1.9 million for the nine months ended September 30, 2018.

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14. Segment Information and Geographic Data

The Company operates as one operating segment. Operating segments are defined as components of an enterprise for which separate financial information is regularly evaluated by the chief operating decision makers (“CODMs”), which are the Company’s chief executive officer and chief operating officer, in deciding how to allocate resources and assess performance. The Company’s CODMs evaluate the Company’s financial information and resources and assess the performance of these resources on a consolidated basis. Since the Company operates in one operating segment, all required financial segment information can be found in the consolidated financial statements. Revenue and long-lived assets by geographic region, based on the physical location of the operations recording the sale or the asset, are as follows:

Revenues by geographical region:

	Three Months End September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Americas	$	116,841		$	92,388		$	332,311		$	261,034
Europe		43,749			30,382			120,708			83,763
Asia Pacific		13,031			9,056			35,655			24,161
Total	$	173,621		$	131,826		$	488,674		$	368,958
Percentage of revenues generated outside    of the Americas		33	%		30	%		32	%		29	%

Revenue derived from customers outside the United States (international) was approximately 40% of total revenue in the three and nine months ended September 30, 2019. Revenue derived from customers outside the United States (international) was approximately 38% of total revenue in the three months ended September 30, 2018 and 37% of total revenue in the nine months ended September 30, 2018.

Total long-lived assets by geographical region:

	As of September 30, 2019			As of  December 31, 2018
Americas	$	37,702		$	35,186
Europe		22,603			13,913
Asia Pacific		3,654			3,369
Total long-lived assets	$	63,959		$	52,468
Percentage of long-lived assets held outside of the    Americas		41	%		33	%

15. Subsequent Event

On October 31, 2019 the Company acquired 100% of the outstanding equity securities of PieSync NV, a limited liability company formed under Belgian law ("PieSync"), for approximately $26.5 million.  PieSync provides a customer data sync platform, enabling bi-directional syncs between business applications.

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

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our consolidated financial statements and related notes appearing elsewhere in this Quarterly Report on Form 10-Q and our Annual Report on Form 10-K for the year ended December 31, 2018 filed with the SEC on February 12, 2019. As discussed in the section titled “Special Note Regarding Forward-Looking Statements,” the following discussion and analysis contains forward-looking statements that involve risks and uncertainties, as well as assumptions that, if they never materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those identified below, and those discussed in the section titled “Risk Factors” included under Part II, Item 1A below.

Company Overview

We provide a cloud-based marketing, sales, and customer service software platform, which we refer to as our Growth Platform, that enables businesses to grow better. At HubSpot, we’re committed to helping our customers grow better, which means helping them grow without compromise, always solving for the customer, and creating a better experience for customers and company alike.  To that end, our Growth Platform, comprised of Marketing Hub, Sales Hub, Service Hub, and a customer relationship management, or CRM system, features integrated applications and tools that enable businesses to create a cohesive and adaptable customer experience throughout the customer lifecycle.  

We focus on selling to mid-market business-to-business, or B2B, companies, which we define as companies that have between two and 2,000 employees.  While our Growth Platform was built to grow with any company, we focus on selling to mid-market businesses because we believe we have significant competitive advantages attracting and serving this market segment. These mid-market businesses seek an integrated, easy-to-implement and easy-to-use solution to reach customers and compete with organizations that have larger marketing and sales budgets. We efficiently reach these businesses at scale through our proven inbound methodology, our Solutions Partners, and our “freemium” model. A Solutions Partner is a service provider that helps businesses with strategy, execution, and implementation of go-to-market activities and technology solutions. Our freemium model attracts customers who begin using our Growth Platform through our free products and then upgrade to our paid products. As of September 30, 2019, we had 3,204 full-time employees and 68,803 Total Customers of varying sizes in more than 100 countries, representing almost every industry.

We derive most of our revenue from subscriptions to our cloud-based Growth Platform and related professional services, which consist of customer on-boarding and training services. Subscription revenue accounted for 96% of our total revenue for the three and nine months ended September 30, 2019 and 95% of our total revenue for the three and nine months ended September 30,2018. We sell multiple product plans at different base prices on a subscription basis, each of which includes our core Growth Platform and integrated applications to meet the needs of the various customers we serve. Customers pay additional fees if the number of contacts stored and tracked in the customer’s database exceeds specified thresholds. We generate additional revenue based on the purchase of additional subscriptions, purchase of additional products, purchases of our add-on products and the number of account users, subdomains and website visits. Most of our customers’ subscriptions are one year or less in duration.

Subscriptions are non-cancelable and are billed in advance on various schedules. Because the mix of billing terms for orders can vary from period to period, the annualized value of the orders we enter into with our customers will not be completely reflected in deferred revenue at any single point in time. Accordingly, we do not believe that change in deferred revenue is an accurate indicator of future revenue for a given period of time.

Many of our customers purchase on-boarding and training services which are designed to help customers enhance their ability to attract, engage and delight their customers using our Growth Platform. Professional services and other revenue accounted for 4% of total revenue for the three and nine months ended September 30, 2019 and 5% of total revenue for the three and nine months ended September 30, 2018. We expect professional services and other margins to range from a moderate loss to breakeven for the foreseeable future.

We have focused on rapidly growing our business and plan to continue to make investments to help us address some of the challenges facing us to support this growth, such as demand for our Growth Platform by existing and new customers, significant competition from other providers of marketing, sales and customer service software and related applications and rapid technological change in our industry. We believe that the growth of our business is dependent on many factors, including our ability to expand our customer base, increase adoption of our Growth Platform within existing customers, develop new products and applications to extend the functionality of our Growth Platform and provide a high level of customer service. We expect to increase our investment in sales and marketing as we continue to expand our sales teams, increase our marketing activities and grow our international operations. We also expect to increase our investment in research and development as we continue to introduce new products and applications to extend the functionality of our Growth Platform. We also intend to invest in maintaining a high level of customer service and support which we consider critical for our continued success. We plan to continue investing in our data center infrastructure and services capabilities in order to support continued future customer growth. We also expect to continue to incur additional general and

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administrative expenses as a result of both our growth and the infrastructure required to be a public company. We expect to use our cash flow from operations and the proceeds from our convertible debt and prior stock offerings to fund these growth strategies and do not expect to be profitable in the near term.

We believe that these investments will result in an increase in our subscription revenue base. This will result in revenue increasing faster than the increase in sales and marketing, research and development and general and administrative expenses, exclusive of stock-based compensation, as we reach economies of scale. With this increased operating leverage, we expect our operating margins to increase in the long term. However, we will incur losses in the short term. If we are unable to achieve our revenue growth objectives, including a high rate of renewals of our customer agreements, we may not be able to achieve profitability.

Results of Operations for the Three and Nine Months Ended September 30, 2019 and 2018

The following tables set forth our results of operations for the periods presented and as a percentage of our total revenue for those periods. The data has been derived from the unaudited consolidated financial statements contained in this Quarterly Report on Form 10-Q which include, in our opinion, all adjustments, consisting only of normal recurring adjustments, that we consider necessary for a fair statement of the financial position and results of operations for the interim periods presented. The period-to-period comparison of financial results is not necessarily indicative of financial results to be achieved in future periods.

	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Revenues:
Subscription	$	167,078		$	125,478		$	467,180		$	350,646
Professional services and other		6,543			6,348			21,494			18,312
Total revenue		173,621			131,826			488,674			368,958
Cost of revenues:
Subscription		25,671			17,777			70,550			49,976
Professional services and other		7,592			7,988			23,433			23,017
Total cost of revenues		33,263			25,765			93,983			72,993
Gross profit		140,358			106,061			394,691			295,965
Operating expenses:
Research and development		39,847			30,761			115,480			85,598
Sales and marketing		91,283			71,293			250,267			196,484
General and administrative		23,300			19,057			67,777			54,309
Total operating expenses		154,430			121,111			433,524			336,391
Loss from operations		(14,072	)		(15,050	)		(38,833	)		(40,426	)
Other expense:
Interest income		5,185			2,416			14,783			6,332
Interest expense		(5,760	)		(5,393	)		(16,946	)		(15,893	)
Other expense		(89	)		(277	)		(773	)		(1,087	)
Total other expense		(664	)		(3,254	)		(2,936	)		(10,648	)
Loss before income tax expense		(14,736	)		(18,304	)		(41,769	)		(51,074	)
Income tax expense		(251	)		(359	)		(1,675	)		(1,262	)
Net loss	$	(14,987	)	$	(18,663	)	$	(43,444	)	$	(52,336	)

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	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Revenue:
Subscription		96	%		95	%		96	%		95	%
Professional services and other		4			5			4			5
Total revenue		100			100			100			100
Cost of revenue:
Subscription		15			13			14			14
Professional services and other		4			6			5			6
Total cost of revenue		19			20			19			20
Gross profit		81			80			81			80
Operating expenses:
Research and development		23			23			24			23
Sales and marketing		53			54			51			53
General and administrative		13			14			14			15
Total operating expenses		89			92			89			91
Loss from operations		(8	)		(11	)		(8	)		(11	)
Total other expense		—			(2	)		(1	)		(3	)
Loss before income tax expense		(8	)		(14	)		(9	)		(14	)
Income tax expense		—			—			—			—
Net loss		(9	)%		(14	)%		(9	)%		(14	)%

Percentages are based on actual values. Totals may not sum due to rounding.

Three and Nine Months Ended September 30, 2019 Compared to the Three and Nine Months Ended September 30, 2018

Revenue

	Three Months Ended September 30,									Nine Months Ended September 30,
(dollars in thousands)	2019		2018		$ Change		% Change			2019		2018		$ Change		% Change
Revenues:
Subscription	$	167,078	$	125,478	$	41,600		33	%	$	467,180	$	350,646	$	116,534		33	%
Professional services and other		6,543		6,348		195		3	%		21,494		18,312		3,182		17	%
Total revenue	$	173,621	$	131,826	$	41,795		32	%	$	488,674	$	368,958	$	119,716		32	%

Three month change

Subscription revenue increased during the three months ended September 30, 2019 compared to the same period in 2018 primarily due to the increase in Total Customers, which grew from 52,505 as of September 30, 2018 to 68,803 as of September 30, 2019.  Total Average Subscription Revenue per Customer increased from $9,959 for the three months ended September 30, 2018 to $9,992 for the three months ended September 30, 2019. The growth in Total Customers was primarily driven by our increased sales representative capacity to meet market demand as well as the freemium model. The increase in average subscription revenue per customer was driven primarily by existing customers increasing their use of our products, existing customers purchasing additional subscriptions, and new customers purchasing our higher price product plans. The increase in average subscription revenue per customer was partially offset by the continued adoption of our freemium model.

The 3% increase in professional services and other revenue resulted primarily from the increase in Total Customers and from the delivery of on-boarding and training services for the additional subscriptions sold.

Nine month change

Subscription revenue increased during the nine months ended September 30, 2019 compared to the same period in 2018 primarily due to the increase in Total Customers, which grew from 52,505 as of September 30, 2018 to 68,803 as of September 30, 2019.  Total Average Subscription Revenue per Customer increased from $9,913 for the nine months ended September 30, 2018 to

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$9,921 for the nine months ended September 30, 2019. The growth in Total Customers was primarily driven by our increased sales representative capacity to meet market demand as well as the freemium model. The increase in average subscription revenue per customer was driven primarily by existing customers increasing their use of our products, existing customers purchasing additional subscriptions, and new customers purchasing our higher price product plans. The increase in average subscription revenue per customer was partially offset by the continued adoption of our freemium model.

The 17% increase in professional services and other revenue resulted primarily from the increase in Total Customers and from the delivery of on-boarding and training services for the additional subscriptions sold.

Cost of Revenue, Gross Profit and Gross Margin Percentage

	Three Months Ended September 30,											Nine Months Ended September 30,
(dollars in thousands)	2019			2018			$ Change		% Change			2019			2018			$ Change		% Change
Total cost of revenue	$	33,263		$	25,765		$	7,498		29	%	$	93,983		$	72,993		$	20,990		29	%
Gross profit	$	140,358		$	106,061		$	34,297		32	%	$	394,691		$	295,965		$	98,726		33	%
Gross margin percentage		81	%		80	%							81	%		80	%

Total cost of revenue for the three and nine months ended September 30, 2019 increased compared to the same period in 2018 primarily due to an increase in subscription and hosting costs, employee-related costs, amortization of developed technology, amortization of acquired technology, and allocated overhead expenses. The increase in gross margin was primarily driven by changes to our service offerings for our products.

	Three Months Ended September 30,											Nine Months Ended September 30,
(dollars in thousands)	2019			2018			$ Change		% Change			2019			2018			$ Change		% Change
Subscription cost of revenue	$	25,671		$	17,777		$	7,894		44	%	$	70,550		$	49,976		$	20,574		41	%
Percentage of subscription revenue		15	%		14	%							15	%		14	%

The increase in subscription cost of revenue for the three and nine month periods ended September 30, 2019 compared to the same period in 2018 was primarily due to the following:

	Change
	Three Months		Nine Months
	(in thousands)
Subscription and hosting costs	$	4,887	$	9,991
Employee-related costs		1,902		5,797
Amortization of capitalized software development costs		641		2,259
Amortization of acquired technology		195		1,769
Allocated overhead expenses		269		758
	$	7,894	$	20,574

Three month change

Subscription and hosting costs increased primarily due to growth in our Total Customer base from 52,505 as of September 30, 2018 to 68,803 as of September 30, 2019. Employee-related costs increased as a result of increased headcount as we continue to grow our customer support organization to support our customer growth and improve service levels and offerings. Amortization of capitalized software development costs increased due to the increased number of developers working on our software platform as we continue to develop new products and increased functionality.  Amortization of acquired technology increased due to acquired technology being placed into service during the third quarter of 2018. Allocated overhead expenses increased due to expansion of our leased space and infrastructure as we continue to grow our business and expand headcount.

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Nine month change

Subscription and hosting costs increased primarily due to growth in our Total Customer base from 52,505 as of September 30, 2018 to 68,803 as of September 30, 2019. Employee-related costs increased as a result of increased headcount as we continue to grow our customer support organization to support our customer growth and improve service levels and offerings. Amortization of capitalized software development costs increased due to the increased number of developers working on our software platform as we continue to develop new products and increased functionality.  Amortization of acquired technology increased due to acquired technology being placed into service during the third quarter of 2018. Allocated overhead expenses increased due to expansion of our leased space and infrastructure as we continue to grow our business and expand headcount.

	Three Months Ended September 30,												Nine Months Ended September 30,
(dollars in thousands)	2019			2018			$ Change			% Change			2019			2018			$ Change		% Change
Professional services and other cost of    revenue	$	7,592		$	7,988		$	(396	)		(5	)%	$	23,433		$	23,017		$	416		2	%
Percentage of professional services and    other revenue		116	%		126	%								109	%		126	%

The (decrease) increase in professional services and other cost of revenue for the three and nine month periods ended September 30, 2019 compared to the same period in 2018 was primarily due to the following:

	Change
	Three Months			Nine Months
	(in thousands)
Employee-related costs and allocated overhead expenses	$	(396	)	$	416
	$	(396	)	$	416

Three month change

Employee-related costs and allocated overhead expenses decreased as a result of changes to our service offerings for our products.

Nine month change

Employee-related costs and allocated overhead expenses increased as a result of increased headcount during the first quarter of 2019, offset during the second and third quarter of 2019 by changes to our service offerings for our products.  

Research and Development

	Three Months Ended September 30,											Nine Months Ended September 30,
(dollars in thousands)	2019			2018			$ Change		% Change			2019			2018			$ Change		% Change
Research and development	$	39,847		$	30,761		$	9,086		30	%	$	115,480		$	85,598		$	29,882		35	%
Percentage of total revenue		23	%		23	%							24	%		23	%

The increase in research and development expense for the three and nine month periods ended September 30, 2019 compared to the same period in 2018 was primarily due to the following:

	Change
	Three Months		Nine Months
	(in thousands)
Employee-related costs	$	7,732	$	26,805
Allocated overhead expenses		1,354		3,077
	$	9,086	$	29,882

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Three month change

Employee-related costs increased as a result of increased headcount as we continue to grow our engineering organization to develop new products, increase functionality and to maintain our existing Growth Platform. Allocated overhead expense increased due to expanding our leased space and infrastructure as we continue to grow our business and expand headcount.

Nine month change

Employee-related costs increased as a result of increased headcount as we continue to grow our engineering organization to develop new products, increase functionality and to maintain our existing Growth Platform. Allocated overhead expense increased due to expanding our leased space and infrastructure as we continue to grow our business and expand headcount.

Sales and Marketing

	Three Months Ended September 30,											Nine Months Ended September 30,
(dollars in thousands)	2019			2018			$ Change		% Change			2019			2018			$ Change		% Change
Sales and marketing	$	91,283		$	71,293		$	19,990		28	%	$	250,267		$	196,484		$	53,783		27	%
Percentage of total revenue		53	%		54	%							51	%		53	%

The increase in sales and marketing expense for the three and nine month periods ended September 30, 2019 compared to the same period in 2018 was primarily due to the following:

	Change
	Three Months		Nine Months
	(in thousands)
Employee-related costs	$	12,651	$	36,307
Partner commissions		2,301		6,841
Marketing programs		2,792		5,747
Allocated overhead expenses		2,246		4,888
	$	19,990	$	53,783

Three month change

Employee-related costs increased as a result of increased headcount as we continue to expand our selling and marketing organizations to grow our customer base. Partner commissions increased as a result of increased revenue generated through our partners. Marketing programs increased due to the timing and size of certain marketing efforts as we continue to make investments in attracting new customers. Allocated overhead expenses increased due to expanding our leased space and infrastructure as we continue to grow our business and expand headcount.

Nine month change

Employee-related costs increased as a result of increased headcount as we continue to expand our selling and marketing organizations to grow our customer base. Partner commissions increased as a result of increased revenue generated through our partners. Marketing programs increased due to the timing and size of certain marketing efforts as we continue to make investments in attracting new customers. Allocated overhead expenses increased due to expanding our leased space and infrastructure as we continue to grow our business and expand headcount.

General and Administrative

	Three Months Ended September 30,											Nine Months Ended September 30,
(dollars in thousands)	2019			2018			$ Change		% Change			2019			2018			$ Change		% Change
General and administrative	$	23,300		$	19,057		$	4,243		22	%	$	67,777		$	54,309		$	13,468		25	%
Percentage of total revenue		13	%		14	%							14	%		15	%

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The increase in general and administrative expense for the three and nine month periods ended September 30, 2019 compared to the same period in 2018 was primarily due to the following:

	Change
	Three Months		Nine Months
Employee-related costs	$	2,898	$	9,487
Customer credit card fees		686		2,177
Allocated overhead expenses		659		1,804
	$	4,243	$	13,468

Three month change

Employee-related costs increased as a result of increased headcount as we continue to grow our business and require additional personnel to support our expanded operations. Customer credit card fees increased due to increased customer transactions as we continue to grow our business. Allocated overhead expenses increased due to expanding our leased space and infrastructure as we continue to grow our business and expand headcount.

Nine month change

Employee-related costs increased as a result of increased headcount as we continue to grow our business and require additional personnel to support our expanded operations. Customer credit card fees increased due to increased customer transactions as we continue to grow our business. Allocated overhead expenses increased due to expanding our leased space and infrastructure as we continue to grow our business and expand headcount.

Other expense

	Three Months Ended September 30,												Nine Months Ended September 30,
(dollars in thousands)	2019			2018			$ Change			% Change			2019			2018			$ Change			% Change
Interest income	$	5,185		$	2,416		$	2,769			115	%	$	14,783		$	6,332		$	8,451			133	%
Percentage of total revenue		3	%		2	%								3	%		2	%
Interest expense	$	(5,760	)	$	(5,393	)	$	(367	)		7	%	$	(16,946	)	$	(15,893	)	$	(1,053	)		7	%
Percentage of total revenue		(3	)%		(4	)%								(3	)%		(4	)%
Other expense	$	(89	)	$	(277	)	$	188			-68	%	$	(773	)	$	(1,087	)	$	314			(29	)%
Percentage of total revenue	*			*									*			*

* not meaningful

Interest income primarily consists of interest earned on invested cash and cash equivalents balances and investments. The increase during the three and nine months ended September 30, 2019 is primarily due to the increase in the amount of investment holdings from the proceeds received from the common stock offering that occurred during the first quarter of 2019 and an increase in yields on our investment balances.

Interest expense primarily consists of amortization of the debt discount and issuance costs related to the 2022 Notes that is recorded as interest expense, contractual interest expense on the 2022 Notes, and interest on capital leases. The increase during the three and nine months ended September 30, 2019 was primarily due to the use of the effective-interest method to amortize the debt discount and issuance costs related to the 2022 Notes.  

Other expense primarily consists of the impact of foreign currency transaction gains and losses associated with monetary assets and liabilities. The decrease during the three and nine months ended September 30, 2019 was primarily due to foreign currency exchange rate fluctuations.  

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Income tax expense

	Three Months Ended September 30,											Nine Months Ended September 30,
(dollars in thousands)	2019			2018			$ Change		% Change			2019			2018			$ Change			% Change
Income tax expense	$	(251	)	$	(359	)	$	108		30	%	$	(1,675	)	$	(1,262	)	$	(413	)		33	%
Effective tax rate		2	%		2	%							4	%		2	%

Income tax expense consists of current and deferred taxes for U.S. and foreign income.

Liquidity and Capital Resources

Our principal sources of liquidity to date have been cash and cash equivalents, net accounts receivable, our common stock offerings, and our convertible notes offering.

The following table shows cash and cash equivalents, working capital, net cash and cash equivalents provided by operating activities, net cash and cash equivalents used in investing activities, and net cash and cash equivalents provided by financing activities for the nine months ended September 30, 2019 and 2018.

	Nine Months ended September  30
	2019			2018
	(in thousands)
Cash and cash equivalents	$	225,770		$	96,112
Working capital		800,321			455,172
Net cash and cash equivalents provided by operating    activities		71,082			51,740
Net cash and cash equivalents used in investing activities		(309,269	)		(51,702	)
Net cash and cash equivalents provided by    financing activities		356,538			10,244

Our cash and cash equivalents at September 30, 2019 were held for working capital purposes. We believe our working capital is sufficient to support our operations for at least the next 12 months. At September 30, 2019, $51.1 million of our cash and cash equivalents was held in accounts outside the United States. Under the U.S. tax reform legislation that occurred in 2018, we determined that we do not assert indefinite reinvestment of our foreign earnings because these earnings are subject to United States Federal tax. While we have concluded that any incremental tax incurred upon ultimate distribution of these earnings to be immaterial, our current plans do not demonstrate a need to repatriate undistributed earnings to fund our U.S. operations.

Net Cash and Cash Equivalents Provided by Operating Activities

Net cash and cash equivalents provided by operating activities consists primarily of net loss adjusted for certain non-cash items, including stock-based compensation, depreciation and amortization and other non-cash charges, net.

Net cash and cash equivalents provided by operating activities during the nine months ended September 30, 2019 primarily reflected our net loss of $43.4 million and accretion of bond discounts of $10.9 million offset by non-cash expenses that included $21.2 million of depreciation and amortization, $73.7 million in stock-based compensation and $16.2 million of amortization of debt discount and issuance costs. Working capital sources of cash and cash equivalents included a $20.9 million increase in deferred revenue primarily resulting from the growth in the number of customers invoiced during the period, a $14.3 million increase in right-of-use asset, a $6.2 million increase in accounts payable related to timing of bill payments, and a $1.0 million decrease in accrued expenses and other liabilities. These sources of cash and cash equivalents were offset by a $1.3 million increase in accounts receivable, a $6.2 million increase in prepaid expenses and other assets, a $5.6 million increase in deferred commissions, and a $14.8 million decrease in lease liabilities.

Net cash and cash equivalents provided by operating activities during the nine months ended September 30, 2018 primarily reflected our net loss of $52.3 million and accretion of bond discount premium of $4.5 million offset by non-cash expenses that included $16.5 million of depreciation and amortization, $55.3 million in stock-based compensation, $2.0 million of non-cash rent expense and $15.1 million of amortization of debt discount and issuance costs. Working capital sources of cash and cash equivalents included a $25.7 million increase in deferred revenue primarily resulting from the growth in the number of customers invoiced during the period, $4.0 million increase in deferred rent related to tenant improvement allowance received, a $3.8 million increase in accrued expenses, a $4.3 million increase in accounts payable related to timing of bill payments, and a $0.8 million decrease in prepaid

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expenses and other assets. These sources of cash and cash equivalents were offset by a $15.9 million increase in deferred commissions and a $3.3 million increase in accounts receivable related to increased billings.

Net Cash and Cash Equivalents Used in Investing Activities

Our investing activities have consisted primarily of purchases and maturities of investments, property and equipment purchases, purchases of strategic investments, and capitalization of software development costs. Capitalized software development costs are related to new products or improvements to our existing software platform that expands the functionality for our customers.

Net cash and cash equivalents used in investing activities during the nine months ended September 30, 2019 consisted primarily of $968.0 million purchases of investments, $21.2 million of purchased property and equipment, $9.1 million of capitalized software development costs, and $0.6 million of purchases of strategic investments. These uses of cash were offset by $689.6 million received related to the maturity of investments.

Net cash and cash equivalents used in investing activities during the nine months ended September 30, 2018 consisted primarily of $524.8 million purchases of investments, $16.7 million of purchased property and equipment, $8.7 million of capitalized software development costs, and $0.3 million related to the purchase of strategic investments. These uses of cash were offset by $498.9 million received related to the maturity of investments.

Net Cash and Cash Equivalents Provided by Financing Activities

Our financing activities have consisted primarily of our stock offerings, the issuance of our common stock under our stock plans, payments of employee taxes related to the net share settlement of stock-based awards, and repayments of our finance lease obligations.

For the nine months ended September 30, 2019 cash provided by financing activities consisted primarily of $342.6 million of net proceeds related to common stock offering and $18.9 million of proceeds related to issuance of common stock under stock plans. This source of cash was offset by $4.8 million used for payment of employee taxes related to the net share settlement of stock-based awards and $0.2 million used for repayments of capital lease obligations.

For the nine months ended September 30, 2018, cash provided by financing activities consisted primarily of $16.8 million of proceeds related to issuance of common stock under stock plans. This source of cash was offset by $5.9 million used for payment of employee taxes related to the net share settlement of stock-based awards and $0.6 million used for repayments of capital lease obligations.  

Critical Accounting Policies and Estimates

There have been no significant changes in our critical accounting policies and estimates during the nine months ended September 30, 2019 as compared to the critical accounting policies and estimates disclosed in our Annual Report on Form 10-K for the year ended December 31, 2018 except those disclosed below.

Leases

On January 1, 2019, we adopted the new lease guidance using a modified retrospective transition method applied to those leases which were not completed as of January 1, 2019.

We lease office facilities under non-cancelable operating leases that expire at various dates through May 2031. Certain leases contain optional termination dates.

We determine if an arrangement contains a lease at inception and does not separate lease and non-lease components of an arrangement determined to contain a lease. Operating and finance leases with a duration of less than 12 months are excluded from right-of-use-assets and lease liabilities and related expense is recorded as incurred.

We use our estimated incremental borrowing rate, which is derived from information available at the lease commencement date, in determining the present value of operating lease payments. To determine the estimated incremental borrowing rate, we use publicly available credit ratings for peer companies. The Company estimates the incremental borrowing rate using yields for maturities that are in line with the duration of the lease payments. A hypothetical 100 basis point decrease in our estimate of the incremental borrowing rate at January 1, 2019 (the date of our adoption) would increase our operating lease liability by approximately $7.4 million.

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Contractual Obligations and Commitments

As of September 30, 2019, there were no material changes in our contractual obligations and commitments from those disclosed in the Annual Report on Form 10-K filed with the SEC on February 12, 2019, other than those appearing in the notes to the consolidated financial statements appearing elsewhere in this Quarterly Report on Form 10-Q.

Recent Accounting Pronouncements

For information on recent accounting pronouncements, see Recent Accounting Pronouncements in the notes to the consolidated financial statements appearing elsewhere in this Quarterly Report on Form 10-Q.

Off-Balance Sheet Arrangements

During the three months ended September 30, 2019, we had no material off-balance sheet arrangements, exclusive of operating leases and indemnifications of officers, directors and employees for certain events or occurrences while the officer, director or employee is, or was, serving at our request in such capacity.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Foreign Currency Exchange Risk

We have foreign currency risks related to our revenue and operating expenses denominated in currencies other than the U.S. dollar, primarily the Euro, British Pound Sterling, Australian dollar, Singaporean dollar, Japanese Yen, and Colombian Peso. Since we translate foreign currencies into U.S. dollars for financial reporting purposes, currency fluctuations can have an impact on our financial results.

We have experienced and will continue to experience fluctuations in our net loss as a result of transaction gains or losses related to revaluing certain current asset and current liability balances that are denominated in currencies other than the functional currency of the entities in which they are recorded. We recognized immaterial amounts of foreign currency gains and losses in each of the periods presented. We have not engaged in the hedging of our foreign currency transactions to date, we are evaluating the costs and benefits of initiating such a program and may in the future hedge selected significant transactions denominated in currencies other than the U.S. dollar as we expand our international operation and our risk grows.

Interest Rate Sensitivity

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

Inflation Risk

We do not believe that inflation has had a material effect on our business. However, if our costs, in particular personnel, sales and marketing and hosting costs, were to become subject to significant inflationary pressures, we may not be able to fully offset such higher costs through price increases. Our inability or failure to do so could harm our business, operating results and financial condition.

Market Risk and Market Interest Risk

In May 2017, we issued $400 million aggregate principal amount of 0.25% convertible senior notes due 2022. The fair value of our convertible senior notes is subject to interest rate risk, market risk and other factors due to the convertible feature.  The fair value of the convertible senior notes will generally increase as our common stock price increases and will generally decrease as our common stock price declines in value. The interest and market value changes affect the fair value of our convertible senior notes but do not impact our financial position, cash flows or results of operations due to the fixed nature of the debt obligation. Generally, the fair value of 2022 Notes will increase as interest rates fall and decrease as interest rates rise. Additionally, we carry the convertible senior notes at face value less unamortized discount on our balance sheet, and we present the fair value for required disclosure purposes only.

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The table below provides a sensitivity analysis of hypothetical 10% changes of our stock price as of September 30, 2019 and the estimated impact on the fair value of the 2022 Notes. The selected scenarios are not predictions of future events, but rather are intended to illustrate the effect such event may have on the fair value of the 2022 Notes.

Hypothetical change in HubSpot stock price	Fair value		Estimated change in fair value			Hypothetical percentage increase (decrease) in fair value
10% increase	$	716,048	$	56,608			8.6	%
No change	$	659,440	$	—			—
10% decrease	$	602,824	$	(56,616	)		-8.6	%

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures. Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on such evaluation, our principal executive officer and principal financial officer have concluded that as of such date, our disclosure controls and procedures were effective.

Changes in Internal Control Over Financial Reporting. There was no change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during the period covered by this Quarterly Report on Form 10-Q that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations of Internal Controls. Our management, including our Chief Executive Officer and Chief Financial Officer, does not expect that our disclosure controls and procedures or our internal controls will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of a simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the control. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Over time, controls may become inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

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PART II

Other Information

Item 1. Legal Proceedings

From time to time we may become involved in legal proceedings or be subject to claims arising in the ordinary course of our 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, operating results, financial condition or cash flows. 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.

Item 1A. RISK FACTORS

An investment in our common stock involves a high degree of risk. You should carefully consider the risks described below and the other information in this Quarterly Report on Form 10-Q and in our other public filings before making an investment decision. Our business, prospects, financial condition, or operating results could be harmed by any of these risks, as well as other risks not currently known to us or that we currently consider immaterial. If any of such risks and uncertainties actually occurs, our business, financial condition or operating results could differ materially from the plans, projections and other forward-looking statements included in the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and elsewhere in this report and in our other public filings. The trading price of our common stock could decline due to any of these risks, and, as a result, you may lose all or part of your investment.

Risks Related to Our Business and Strategy

We have a history of losses and may not achieve profitability in the future.

We generated net losses of $43.4 million and $52.3 million for the nine months ended September 30, 2019 and 2018, respectively. As of September 30, 2019, we had an accumulated deficit of $387.8 million. We will need to generate and sustain increased revenue levels in future periods to become profitable, and, even if we do, we may not be able to maintain or increase our level of profitability. We intend to continue to expend significant funds to grow our marketing, sales and customer service operations, develop and enhance our Growth Platform, scale our data center infrastructure and services capabilities and expand into new markets. Our efforts to grow our business may be more costly than we expect, and we may not be able to increase our revenue enough to offset our higher operating expenses. We may incur significant losses in the future for a number of reasons, including the other risks described in this Quarterly Report on Form 10-Q, and unforeseen expenses, difficulties, complications and delays and other unknown events. If we are unable to achieve and sustain profitability, the market price of our common stock may significantly decrease.

We are dependent upon customer renewals, the addition of new customers, increased revenue from existing customers and the continued growth of the market for a Growth Platform.

We derive, and expect to continue to derive, a substantial portion of our revenue from the sale of subscriptions to our Growth Platform. The market for inbound marketing, sales and customer service products is still evolving, and competitive dynamics may cause pricing levels to change as the market matures and as existing and new market participants introduce new types of point applications and different approaches to enable businesses to address their respective needs. As a result, we may be forced to reduce the prices we charge for our platform and may be unable to renew existing customer agreements or enter into new customer agreements at the same prices and upon the same terms that we have historically. In addition, our growth strategy involves a scalable pricing model (including freemium versions of our products) intended to provide us with an opportunity to increase the value of our customer relationships over time as we expand their use of our platform, sell to other parts of their organizations, cross-sell our sales products to existing marketing product customers and vice versa through touchless or low touch in product purchases, and upsell additional offerings and features. If our cross-selling efforts are unsuccessful or if our existing customers do not expand their use of our platform or adopt additional offerings and features, our operating results may suffer.

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Our subscription renewal rates may decrease, and any decrease could harm our future revenue and operating results.

Our customers have no obligation to renew their subscriptions for our platform after the expiration of their subscription periods, substantially all of which are one year or less. In addition, our customers may seek to renew for lower subscription amounts or for shorter contract lengths. Also, customers may choose not to renew their subscriptions for a variety of reasons. Our renewal rates may decline or fluctuate as a result of a number of factors, including limited customer resources, pricing changes, the prices of services offered by our competitors, adoption and utilization of our platform and add-on applications by our customers, adoption of our new products, customer satisfaction with our platform, mergers and acquisitions affecting our customer base, reductions in our customers’ spending levels or declines in customer activity as a result of economic downturns or uncertainty in financial markets. If our customers do not renew their subscriptions for our platform or decrease the amount they spend with us, our revenue will decline and our business will suffer. In addition, a subscription model creates certain risks related to the timing of revenue recognition and potential reductions in cash flows. A portion of the subscription-based revenue we report each quarter results from the recognition of deferred revenue relating to subscription agreements entered into during previous quarters. A decline in new or renewed subscriptions in any period may not be immediately reflected in our reported financial results for that period, but may result in a decline in our revenue in future quarters. If we were to experience significant downturns in subscription sales and renewal rates, our reported financial results might not reflect such downturns until future periods.

We face significant competition from both established and new companies offering marketing, sales and customer service software and other related applications, as well as internally developed software, which may harm our ability to add new customers, retain existing customers and grow our business.

The marketing, sales and customer service software market is evolving, highly competitive and significantly fragmented. With the introduction of new technologies and the potential entry of new competitors into the market, we expect competition to persist and intensify in the future, which could harm our ability to increase sales, maintain or increase renewals and maintain our prices.

We face intense competition from other software companies that develop marketing, sales and customer service software and from marketing services companies that provide interactive marketing services. Competition could significantly impede our ability to sell subscriptions to our Growth Platform on terms favorable to us. Our current and potential competitors may develop and market new technologies that render our existing or future products less competitive, or obsolete. In addition, if these competitors develop products with similar or superior functionality to our platform, we may need to decrease the prices or accept less favorable terms for our platform subscriptions in order to remain competitive. If we are unable to maintain our pricing due to competitive pressures, our margins will be reduced and our operating results will be negatively affected.

Our competitors include:

• cloud-based marketing automation providers;

• email marketing software vendors;

• sales force automation and CRM software vendors;

• large-scale enterprise suites;

• customer service software providers; and

• content management systems (CMS).

In addition, instead of using our platform, some prospective customers may elect to combine disparate point applications, such as content management, marketing automation, CRM, analytics and social media management. We expect that new competitors, such as enterprise software vendors that have traditionally focused on enterprise resource planning or other applications supporting back office functions, will develop and introduce applications serving customer-facing and other front office functions. This development could have an adverse effect on our business, operating results and financial condition. In addition, sales force automation and CRM system vendors could acquire or develop applications that compete with our marketing software offerings. Some of these companies have acquired social media marketing and other marketing software providers to integrate with their broader offerings.

Our current and potential competitors may have significantly more financial, technical, marketing and other resources than we have, be able to devote greater resources to the development, promotion, sale and support of their products and services, may have more extensive customer bases and broader customer relationships than we have, and may have longer operating histories and greater name recognition than we have. As a result, these competitors may respond faster to new technologies and undertake more extensive marketing campaigns for their products. In a few cases, these vendors may also be able to offer marketing, sales and customer service software at little or no additional cost by bundling it with their existing suite of applications. To the extent any of our competitors has existing relationships with potential customers for either marketing software or other applications, those customers may be unwilling

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to purchase our platform because of their existing relationships with our competitor. If we are unable to compete with such companies, the demand for our Growth Platform could substantially decline.

In addition, if one or more of our competitors were to merge or partner with another of our competitors, our ability to compete effectively could be adversely affected. Our competitors may also establish or strengthen cooperative relationships with our current or future strategic distribution and technology partners or other parties with whom we have relationships, thereby limiting our ability to promote and implement our platform. We may not be able to compete successfully against current or future competitors, and competitive pressures may harm our business, operating results and financial condition.

We have experienced rapid growth and organizational change in recent periods and expect continued future growth. If we fail to manage our growth effectively, we may be unable to execute our business plan, maintain high levels of service or address competitive challenges adequately.

Our head count and operations have grown substantially. For example, we had 3,204 full-time employees as of September 30, 2019, as compared with 2,638 as of December 31, 2018 and we have opened 7 international offices since 2013. We also plan to open additional international offices in the future. This growth has placed, and will continue to place, a significant strain on our management, administrative, operational and financial infrastructure. We anticipate further growth will be required to address increases in our product offerings and continued expansion. Our success will depend in part upon our ability to recruit, hire, train, manage and integrate a significant number of qualified managers, technical personnel and employees in specialized roles within our company, including in technology, sales and marketing. If our new employees perform poorly, or if we are unsuccessful in recruiting, hiring, training, managing and integrating these new employees, or retaining these or our existing employees, our business may suffer.

In addition, to manage the expected continued growth of our head count, operations and geographic expansion, we will need to continue to improve our information technology infrastructure, operational, financial and management systems and procedures. Our anticipated additional head count and capital investments will increase our costs, which will make it more difficult for us to address any future revenue shortfalls by reducing expenses in the short term. If we fail to successfully manage our growth, we will be unable to successfully execute our business plan, which could have a negative impact on our business, results of operations or financial condition.

Failure to effectively develop and expand our marketing, sales and customer service capabilities could harm our ability to increase our customer base and achieve broader market acceptance of our platform.

To increase Total Customers and achieve broader market acceptance of our Growth Platform, we will need to expand our marketing, sales and customer service operations, including our sales force and third-party channel partners. We will continue to dedicate significant resources to inbound sales and marketing programs. The effectiveness of our inbound sales and marketing and third-party channel partners has varied over time and may vary in the future and depends on our ability to maintain and improve our Growth Platform. All of these efforts will require us to invest significant financial and other resources. Our business will be seriously harmed if our efforts do not generate a correspondingly significant increase in revenue. We may not achieve anticipated revenue growth from expanding our sales force if we are unable to hire, develop and retain talented sales personnel, if our new sales personnel are unable to achieve desired productivity levels in a reasonable period of time or if our sales and marketing programs are not effective.

The rate of growth of our business depends on the continued participation and level of service of our Solutions Partners.

We rely on our Solutions Partners to provide certain services to our customers, as well as pursue sales of our Growth Platform to customers. To the extent we do not attract new Solutions Partners, or existing or new Solutions partners do not refer a growing number of customers to us, our revenue and operating results would be harmed. In addition, if our Solutions Partners do not continue to provide services to our customers, we would be required to provide such services ourselves either by expanding our internal team or engaging other third-party providers, which would increase our operating costs.

If we cannot maintain our company culture as we grow, we could lose the innovation, teamwork, passion and focus on execution that we believe contribute to our success and our business may be harmed.

We believe that a critical component to our success has been our company culture, which is based on transparency and personal autonomy. We have invested substantial time and resources in building our team within this company culture. Any failure to preserve our culture could negatively affect our ability to retain and recruit personnel and to effectively focus on and pursue our corporate objectives. As we grow as and continue to develop the infrastructure of a public company, we may find it difficult to maintain these important aspects of our company culture. If we fail to maintain our company culture, our business may be adversely impacted.

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If we fail to maintain our inbound thought leadership position, our business may suffer.

We believe that maintaining our thought leadership position in inbound marketing, sales and services is an important element in attracting new customers. We devote significant resources to develop and maintain our thought leadership position, with a focus on identifying and interpreting emerging trends in the inbound experience, shaping and guiding industry dialog and creating and sharing the best inbound practices. Our activities related to developing and maintaining our thought leadership may not yield increased revenue, and even if they do, any increased revenue may not offset the expenses we incurred in such effort. We rely upon the continued services of our management and employees with domain expertise with inbound marketing, sales and services, and the loss of any key employees in this area could harm our competitive position and reputation. If we fail to successfully grow and maintain our thought leadership position, we may not attract enough new customers or retain our existing customers, and our business could suffer.

If we fail to further enhance our brand and maintain our existing strong brand awareness, our ability to expand our customer base will be impaired and our financial condition may suffer.

We believe that our development of the HubSpot brand is critical to achieving widespread awareness of our existing and future inbound experience solutions, and, as a result, is important to attracting new customers and maintaining existing customers. In the past, our efforts to build our brand have involved significant expenses, and we believe that this investment has resulted in strong brand recognition in the B2B market. Successful promotion and maintenance of our brands will depend largely on the effectiveness of our marketing efforts and on our ability to provide a reliable and useful Growth Platform at competitive prices. Brand promotion activities may not yield increased revenue, and even if they do, any increased revenue may not offset the expenses we incurred in building our brand. If we fail to successfully promote and maintain our brand, our business could suffer.

If we fail to adapt and respond effectively to rapidly changing technology, evolving industry standards and changing customer needs or requirements, our Growth Platform may become less competitive.

Our future success depends on our ability to adapt and innovate our Growth Platform. To attract new customers and increase revenue from existing customers, we need to continue to enhance and improve our offerings to meet customer needs at prices that our customers are willing to pay. Such efforts will require adding new functionality and responding to technological advancements, which will increase our research and development costs. If we are unable to develop new applications that address our customers’ needs, or to enhance and improve our platform in a timely manner, we may not be able to maintain or increase market acceptance of our platform. Our ability to grow is also subject to the risk of future disruptive technologies. Access and use of our Growth Platform is provided via the cloud, which, itself, was disruptive to the previous enterprise software model. If new technologies emerge that are able to deliver inbound marketing software and related applications at lower prices, more efficiently, more conveniently or more securely, such technologies could adversely affect our ability to compete.

We rely on our management team and other key employees, and the loss of one or more key employees could harm our business.

Our success and future growth depend upon the continued services of our management team, including our co-founders, Brian Halligan and Dharmesh Shah, and other key employees in the areas of research and development, marketing, sales, services and general and administrative functions. From time to time, there may be changes in our management team resulting from the hiring or departure of executives, which could disrupt our business. We also are dependent on the continued service of our existing software engineers and information technology personnel because of the complexity of our platform, technologies and infrastructure. We may terminate any employee’s employment at any time, with or without cause, and any employee may resign at any time, with or without cause. We do not have employment agreements with any of our key personnel. The loss of one or more of our key employees could harm our business.

The failure to attract and retain additional qualified personnel could prevent us from executing our business strategy.

To execute our business strategy, we must attract and retain highly qualified personnel. In particular, we compete with many other companies for software developers with high levels of experience in designing, developing and managing cloud-based software, as well as for skilled information technology, marketing, sales and operations professionals, and we may not be successful in attracting and retaining the professionals we need. Also, inbound sales, marketing and services domain experts are very important to our success and are difficult to replace. We have from time to time in the past experienced, and we expect to continue to experience in the future, difficulty in hiring and difficulty in retaining highly skilled employees with appropriate qualifications. In particular, we have experienced a competitive hiring environment in the Greater Boston area, where we are headquartered. Many of the companies with which we compete for experienced personnel have greater resources than we do. In addition, in making employment decisions, particularly in the software industry, job candidates often consider the value of the stock options or other equity incentives they are to receive in connection with their employment. If the price of our stock declines, or experiences significant volatility, our ability to attract or retain key employees will be adversely affected. If we fail to attract new personnel or fail to retain and motivate our current personnel, our growth prospects could be severely harmed.

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If we fail to offer high-quality customer support, our business and reputation may suffer.

High-quality education, training and customer support are important for the successful marketing, sale and use of our Growth Platform and for the renewal of existing customers. Providing this education, training and support requires that our personnel who manage our online training resource, HubSpot Academy, or provide customer support have specific inbound experience domain knowledge and expertise, making it more difficult for us to hire qualified personnel and to scale up our support operations. The importance of high-quality customer support will increase as we expand our business and pursue new customers. If we do not help our customers use multiple applications within our Growth Platform and provide effective ongoing support, our ability to sell additional functionality and services to, or to retain, existing customers may suffer and our reputation with existing or potential customers may be harmed.

We may not be able to scale our business quickly enough to meet our customers’ growing needs and if we are not able to grow efficiently, our operating results could be harmed.

As usage of our Growth Platform grows and as customers use our platform for additional inbound applications, such as sales and services, we will need to devote additional resources to improving our application architecture, integrating with third-party systems and maintaining infrastructure performance. In addition, we will need to appropriately scale our internal business systems and our services organization, including customer support and professional services, to serve our growing customer base, particularly as our customer demographics change over time. Any failure of or delay in these efforts could cause impaired system performance and reduced customer satisfaction. These issues could reduce the attractiveness of our Growth Platform to customers, resulting in decreased sales to new customers, lower renewal rates by existing customers, the issuance of service credits, or requested refunds, which could impede our revenue growth and harm our reputation. Even if we are able to upgrade our systems and expand our staff, any such expansion will be expensive and complex, requiring management’s time and attention. We could also face inefficiencies or operational failures as a result of our efforts to scale our infrastructure. Moreover, there are inherent risks associated with upgrading, improving and expanding our information technology systems. We cannot be sure that the expansion and improvements to our infrastructure and systems will be fully or effectively implemented on a timely basis, if at all. These efforts may reduce revenue and our margins and adversely affect our financial results.

Our ability to introduce new products and features is dependent on adequate research and development resources. If we do not adequately fund our research and development efforts, we may not be able to compete effectively and our business and operating results may be harmed.

To remain competitive, we must continue to develop new product offerings, applications, features and enhancements to our existing Growth Platform. Maintaining adequate research and development personnel and resources to meet the demands of the market is essential. If we are unable to develop our platform internally due to certain constraints, such as high employee turnover, lack of management ability or a lack of other research and development resources, we may miss market opportunities. Further, many of our competitors expend a considerably greater amount of funds on their research and development programs, and those that do not may be acquired by larger companies that would allocate greater resources to our competitors’ research and development programs. Our failure to maintain adequate research and development resources or to compete effectively with the research and development programs of our competitors could materially adversely affect our business.

Changes in the sizes or types of businesses that purchase our platform or in the applications within our Growth Platform purchased or used by our customers could negatively affect our operating results.

Our strategy is to sell subscriptions to our Growth Platform to mid-sized businesses, but we have sold and will continue to sell to organizations ranging from small businesses to enterprises. Our gross margins can vary depending on numerous factors related to the implementation and use of our Growth Platform, including the sophistication and intensity of our customers’ use of our platform and the level of professional services and support required by a customer. Sales to enterprise customers may entail longer sales cycles and more significant selling efforts. Selling to small businesses may involve greater credit risk and uncertainty. If there are changes in the mix of businesses that purchase our platform or the mix of the product plans purchased by our customers, our gross margins could decrease and our operating results could be adversely affected.

We have in the past completed acquisitions and may acquire or invest in other companies or technologies in the future, which could divert management’s attention, fail to meet our expectations, result in additional dilution to our stockholders, increase expenses, disrupt our operations or harm our operating results.

We have in the past acquired, and we may in the future acquire or invest in, businesses, products or technologies that we believe could complement or expand our platform, enhance our technical capabilities or otherwise offer growth opportunities. We may not be able to fully realize the anticipated benefits of these or any future acquisitions. The pursuit of potential acquisitions may divert the attention of management and cause us to incur various expenses related to identifying, investigating and pursuing suitable acquisitions, whether or not they are consummated.

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There are inherent risks in integrating and managing acquisitions. If we acquire additional businesses, we may not be able to assimilate or integrate the acquired personnel, operations and technologies successfully or effectively manage the combined business following the acquisition and our management may be distracted from operating our business. We also may not achieve the anticipated benefits from the acquired business due to a number of factors, including: unanticipated costs or liabilities associated with the acquisition; incurrence of acquisition-related costs, which would be recognized as a current period expense; inability to generate sufficient revenue to offset acquisition or investment costs; the inability to maintain relationships with customers and partners of the acquired business; the difficulty of incorporating acquired technology and rights into our platform and of maintaining quality and security standards consistent with our brand; delays in customer purchases due to uncertainty related to any acquisition; the need to integrate or implement additional controls, procedures and policies; challenges caused by distance, language and cultural differences; harm to our existing business relationships with business partners and customers as a result of the acquisition; the potential loss of key employees; use of resources that are needed in other parts of our business and diversion of management and employee resources; the inability to recognize acquired deferred revenue in accordance with our revenue recognition policies; and use of substantial portions of our available cash or the incurrence of debt to consummate the acquisition. Acquisitions also increase the risk of unforeseen legal liability, including for potential violations of applicable law or industry rules and regulations, arising from prior or ongoing acts or omissions by the acquired businesses which are not discovered by due diligence during the acquisition process. Generally, if an acquired business fails to meet our expectations, our operating results, business and financial condition may suffer. Acquisitions could also result in dilutive issuances of equity securities or the incurrence of debt, which could adversely affect our business, results of operations or financial condition.

In addition, a significant portion of the purchase price of companies we acquire may be allocated to goodwill and other intangible assets, which must be assessed for impairment at least annually. If our acquisitions do not ultimately yield expected returns, we may be required to make charges to our operating results based on our impairment assessment process, which could harm our results of operations.

Because our long-term growth strategy involves further expansion of our sales to customers outside the United States, our business will be susceptible to risks associated with international operations.

A component of our growth strategy involves the further expansion of our operations and customer base internationally. We have opened 7 international offices since 2013. We also plan to open additional offices in the future. These international offices focus primarily on sales, professional services and support. We also have a development team in Dublin, Ireland. Our current international operations and future initiatives will involve a variety of risks, including:

• difficulties in maintaining our company culture with a dispersed and distant workforce;

• more stringent regulations relating to data security and the unauthorized use of, or access to, commercial and personal information, particularly in the European Union;

• unexpected changes in regulatory requirements, taxes or trade laws;

• differing labor regulations, especially in the European Union, where labor laws are generally more advantageous to employees as compared to the United States, including deemed hourly wage and overtime regulations in these locations;

• challenges inherent in efficiently managing an increased number of employees over large geographic distances, including the need to implement appropriate systems, policies, benefits and compliance programs;

• difficulties in managing a business in new markets with diverse cultures, languages, customs, legal systems, alternative dispute systems and regulatory systems;

• currency exchange rate fluctuations and the resulting effect on our revenue and expenses, and the cost and risk of entering into hedging transactions if we chose to do so in the future;

• global economic uncertainty caused by global political events, including the United Kingdom's vote in favor of existing the European Union, or Brexit, and similar geopolitical developments;

• limitations on our ability to reinvest earnings from operations in one country to fund the capital needs of our operations in other countries;

• limited or insufficient intellectual property protection;

• political instability or terrorist activities;

• likelihood of potential or actual violations of domestic and international anticorruption laws, such as the U.S. Foreign Corrupt Practices Act and the U.K. Bribery Act, or of U.S. and international export control and sanctions regulations, which likelihood may increase with an increase of sales or operations in foreign jurisdictions and operations in certain industries; and

• adverse tax burdens and foreign exchange controls that could make it difficult to repatriate earnings and cash.

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Our limited experience in operating our business internationally increases the risk that any potential future expansion efforts that we may undertake will not be successful. If we invest substantial time and resources to expand our international operations and are unable to do so successfully and in a timely manner, our business and operating results will suffer. We continue to implement policies and procedures to facilitate our compliance with U.S. laws and regulations applicable to or arising from our international business. Inadequacies in our past or current compliance practices may increase the risk of inadvertent violations of such laws and regulations, which could lead to financial and other penalties that could damage our reputation and impose costs on us.

Interruptions or delays in service from our third-party data center providers could impair our ability to deliver our platform to our customers, resulting in customer dissatisfaction, damage to our reputation, loss of customers, limited growth and reduction in revenue.

We currently serve the majority of our platform functions from third-party data center hosting facilities operated by Amazon Web Services located in northern Virginia and Google Cloud Platform located in Frankfurt, Germany. Our operations depend, in part, on our third-party facility providers’ abilities to protect these facilities against damage or interruption from natural disasters, such as earthquakes and hurricanes, power or telecommunications failures, criminal acts and similar events. In the event that any of our third-party facilities arrangements is terminated, or if there is a lapse of service or damage to a facility, we could experience interruptions in our platform as well as delays and additional expenses in arranging new facilities and services.

Any damage to, or failure of, the systems of our third-party providers could result in interruptions to our platform. Despite precautions taken at our data centers, the occurrence of spikes in usage volume, a natural disaster, such as earthquakes or hurricane, an act of terrorism, vandalism or sabotage, a decision to close a facility without adequate notice, or other unanticipated problems at a facility could result in lengthy interruptions in the availability of our on-demand software. Even with current and planned disaster recovery arrangements, our business could be harmed. Also, in the event of damage or interruption, our insurance policies may not adequately compensate us for any losses that we may incur. These factors in turn could further reduce our revenue, subject us to liability and cause us to issue credits or cause customers to fail to renew their subscriptions, any of which could materially adversely affect our business.

If our Growth Platform has outages or fails due to defects or similar problems, and if we fail to correct any defect or other software problems, we could lose customers, become subject to service performance or warranty claims or incur significant costs.

Our platform and its underlying infrastructure are inherently complex and may contain material defects or errors. We release modifications, updates, bug fixes and other changes to our software several times per day, without traditional human-performed quality control reviews for each release. We have from time to time found defects in our software and may discover additional defects in the future. We may not be able to detect and correct defects or errors before customers begin to use our platform or its applications. Consequently, we or our customers may discover defects or errors after our platform has been implemented. For example, we recently had a product outage due to the failure of one of the infrastructure systems that supports multiple parts of our platform.  Although no data from prior to the outage was lost, our customers experienced disruptions in using our platform during the outage.  Defects or errors could result in product outages and could also cause inaccuracies in the data we collect and process for our customers, or even the loss, damage or inadvertent release of such confidential data. We implement bug fixes and upgrades as part of our regular system maintenance, which may lead to system downtime. Even if we are able to implement the bug fixes and upgrades in a timely manner, any history of product outages, defects or inaccuracies in the data we collect for our customers, or the loss, damage or inadvertent release of confidential data could cause our reputation to be harmed, and customers may elect not to purchase or renew their agreements with us. Furthermore, these issues could subject us to service performance credits (whether offered by us or required by contract), warranty claims or increased insurance costs. The costs associated with product outages, any material defects or errors in our platform or other performance problems may be substantial and could materially adversely affect our operating results.

In addition, third-party apps and features on our Growth Platform may not meet the same quality standards that we apply to our own development efforts and, to the extent they contain bugs, vulnerabilities or defects, they may create disruptions in our customers’ use of our products, lead to data loss, unauthorized access to customer data, damage our brand and reputation and affect the continued use of our products, any of which could harm our business, results of operations and financial condition.

We are dependent on the continued availability of third-party data hosting and transmission services.

A significant portion of our operating cost is from our third-party data hosting and transmission services. If the costs for such services increase due to vendor consolidation, regulation, contract renegotiation, or otherwise, we may not be able to increase the fees for our Growth Platform or services to cover the changes. As a result, our operating results may be significantly worse than forecasted.

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If we do not or cannot maintain the compatibility of our Growth Platform with third-party applications that our customers use in their businesses, our revenue will decline.

A significant percentage of our customers choose to integrate our platform with certain capabilities provided by third-party application providers using application programming interfaces, or APIs, published by these providers. The functionality and popularity of our Growth Platform depends, in part, on our ability to integrate our platform with third-party applications and platforms, including CRM, CMS, e-commerce, call center, analytics and social media sites that our customers use and from which they obtain data. Third-party providers of applications and APIs may change the features of their applications and platforms, restrict our access to their applications and platforms or alter the terms governing use of their applications and APIs and access to those applications and platforms in an adverse manner. Such changes could functionally limit or terminate our ability to use these third-party applications and platforms in conjunction with our platform, which could negatively impact our offerings and harm our business. If we fail to integrate our platform with new third-party applications and platforms that our customers use for marketing, sales or services purposes, we may not be able to offer the functionality that our customers need, which would negatively impact our ability to generate revenue and adversely impact our business.

We rely on data provided by third parties, the loss of which could limit the functionality of our platform and disrupt our business.

Select functionality of our Growth Platform depends on our ability to deliver data, including search engine results and social media updates, provided by unaffiliated third parties, such as Facebook, Google, LinkedIn and Twitter. Some of this data is provided to us pursuant to third-party data sharing policies and terms of use, under data sharing agreements by third-party providers or by customer consent. In the future, any of these third parties could change its data sharing policies, including making them more restrictive, or alter its algorithms that determine the placement, display, and accessibility of search results and social media updates, any of which could result in the loss of, or significant impairment to, our ability to collect and provide useful data to our customers. These third parties could also interpret our, or our service providers’, data collection policies or practices as being inconsistent with their policies, which could result in the loss of our ability to collect this data for our customers. Any such changes could impair our ability to deliver data to our customers and could adversely impact select functionality of our platform, impairing the return on investment that our customers derive from using our solution, as well as adversely affecting our business and our ability to generate revenue.

Privacy concerns and end users’ acceptance of Internet behavior tracking may limit the applicability, use and adoption of our Growth Platform.

Privacy concerns may cause end users to resist providing the personal data necessary to allow our customers to use our platform effectively. We have implemented various features intended to enable our customers to better protect end user privacy, but these measures may not alleviate all potential privacy concerns and threats. Even the perception of privacy concerns, whether or not valid, may inhibit market adoption of our platform, especially in certain industries that rely on sensitive personal information. Privacy advocacy groups and the technology and other industries are considering various new, additional or different self-regulatory standards that may place additional burdens on us. The costs of compliance with, and other burdens imposed by these groups’ policies and actions may limit the use and adoption of our Growth Platform and reduce overall demand for it, or lead to significant fines, penalties or liabilities for any noncompliance or loss of any such action.

We are subject to governmental regulation and other legal obligations, particularly related to privacy, data protection and information security, and our actual or perceived failure to comply with such obligations could harm our business. Compliance with such laws could also impair our efforts to maintain and expand our customer base, and thereby decrease our revenue.

Our handling of data is subject to a variety of laws and regulations, including regulation by various government agencies, including the U.S. Federal Trade Commission, or FTC, and various state, local and foreign agencies. We collect personally identifiable information and other data from our customers and leads. We also handle personally identifiable information about our customers’ customers. We use this information to provide services to our customers, to support, expand and improve our business. We may also share customers’ personally identifiable information with third parties as authorized by the customer or as described in our privacy policy.

The U.S. federal and various state and foreign governments have adopted or proposed limitations on the collection, distribution, use and storage of personal information of individuals. In the United States, the FTC and many state attorneys general are applying federal and state consumer protection laws as imposing standards for the online collection, use and dissemination of data. However, these obligations may be interpreted and applied in a manner that is inconsistent from one jurisdiction to another and may conflict with other requirements or our practices. Any failure or perceived failure by us to comply with privacy or security laws, policies, legal obligations or industry standards or any security incident that results in the unauthorized release or transfer of personally identifiable information or other customer data may result in governmental enforcement actions, litigation, fines and penalties and/or adverse publicity, and could cause our customers to lose trust in us, which could have an adverse effect on our reputation and business.

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Laws and regulations concerning privacy, data protection and information security are evolving, and changes to such laws and regulations could require us to change features of our platform or restrict our customers’ ability to collect and use email addresses, page viewing data and personal information, which may reduce demand for our platform. Our failure to comply with federal, state and international data privacy laws and regulations could harm our ability to successfully operate our business and pursue our business goals. For example, California recently enacted the California Consumer Privacy Act, or CCPA, that will, among other things, require covered companies to provide new disclosures to California consumers and afford such consumers new abilities to opt-out of certain sales of personal information, when it goes into effect on January 1, 2020. The CCPA recently was amended, and it is possible that it will be amended again before it goes into effect. We cannot yet predict the impact of the CCPA on our business or operations, but it may require us to modify our data processing practices and policies and to incur substantial costs and expenses in an effort to comply.

In addition, several foreign countries and governmental bodies, including the European Union and Canada, have regulations dealing with the collection and use of personal information obtained from their residents, which are often more restrictive than those in the United States. Laws and regulations in these jurisdictions apply broadly to the collection, use, storage, disclosure and security of personal information that identifies or may be used to identify an individual. In relevant part, these laws and regulations may affect our ability to engage in lead generation activities by imposing heightened requirements, such as affirmative opt-ins or consent prior to sending commercial correspondence or engaging in electronic tracking activities. For example, a recent ruling of the European Court of Justice (ECJ) in Case C-673/17 provides that a pre-checked opt-in is insufficient to constitute a valid active consumer consent to cookie storage.

Within the European Union, legislators have adopted the General Data Protection Regulation, or GDPR, and which became effective in May 2018 which may impose additional obligations and risk upon our business and which may increase substantially the penalties to which we could be subject in the event of any non-compliance. In addition, Brexit could also lead to further legislative and regulatory changes. It remains unclear how the United Kingdom data protection laws or regulations will develop in the medium to longer term and how data transfers to and from the United Kingdom will be regulated.  We may incur substantial expense in complying with the new obligations to be imposed by the GDPR and we may be required to make significant changes in our business operations, all of which may adversely affect our revenues and our business overall.

On May 23, 2016, the European Parliament adopted a resolution and on July 8, 2016 the European Member State representatives approved the final version of the EU-US Privacy Shield as a successor to the Safe Harbor framework. As of August 1, 2016, interested companies have been permitted to register for the program. We are currently certified to the EU-US Privacy Shield. There continue to be concerns about whether the EU-US Privacy Shield will face additional challenges. Until the remaining legal uncertainties regarding the future of the EU-US Privacy Shield are settled, we will continue to face uncertainty as to whether our efforts to comply with our obligations under European privacy laws will be sufficient. If we are investigated by a European data protection authority, we may face fines and other penalties. Any such investigation or charges by European data protection authorities could have a negative effect on our existing business and on our ability to attract and retain new customers. We may also experience hesitancy, reluctance, or refusal by European or multi-national customers to continue to use our services due to the potential risk exposure to such customers in the event the EU-US Privacy Shield is invalidated. Such customers may view any alternative approaches to compliance as being too costly, too burdensome, too legally uncertain or otherwise objectionable and therefore decide not to do business with us. For example, some of our customers or potential customers in the EU may require their vendors to host all personal data within the EU and may decide to do business with one of our competitors who hosts personal data within the EU instead of doing business with us.

In addition, if our privacy or data security measures fail to comply with current or future laws and regulations, we may be subject to claims, legal proceedings or other actions by individuals or governmental authorities based on privacy or data protection regulations and our commitments to customers or others, as well as negative publicity and a potential loss of business. Moreover, if future laws and regulations limit our subscribers’ ability to use and share personal information or our ability to store, process and share personal information, demand for our solutions could decrease, our costs could increase, and our business, results of operations and financial condition could be harmed.

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If our or our customers’ security measures are compromised or unauthorized access to data of our customers or their customers is otherwise obtained, our Growth Platform may be perceived as not being secure, our customers may be harmed and may curtail or cease their use of our platform, our reputation may be damaged and we may incur significant liabilities.

Our operations involve the storage and transmission of data of our customers and their customers, including personally identifiable information. Our storage is typically the sole source of record for portions of our customers’ businesses and end user data, such as initial contact information and online interactions. Security incidents could result in unauthorized access to, loss of or unauthorized disclosure of this information, litigation, indemnity obligations and other possible liabilities, as well as negative publicity, which could damage our reputation, impair our sales and harm our customers and our business. Cyber-attacks and other malicious Internet-based activity continue to increase generally, and cloud-based platform providers of marketing services have been targeted. If our security measures are compromised as a result of third-party action, employee or customer error, malfeasance, stolen or fraudulently obtained log-in credentials or otherwise, our reputation could be damaged, our business may be harmed and we could incur significant liability. If third parties with whom we work, such as vendors or developers, violate applicable laws, our security policies or our acceptable use policy, such violations may also put our customers’ information at risk and could in turn have an adverse effect on our business. In addition, if the security measures of our customers are compromised, even without any actual compromise of our own systems, we may face negative publicity or reputational harm if our customers or anyone else incorrectly attributes the blame for such security breaches to us or our systems. We may be unable to anticipate or prevent techniques used to obtain unauthorized access or to sabotage systems because they change frequently and generally are not detected until after an incident has occurred. As we increase our customer base and our brand becomes more widely known and recognized, we may become more of a target for third parties seeking to compromise our security systems or gain unauthorized access to our customers’ data. Additionally, we provide extensive access to our database, which stores our customer data, to our development team to facilitate our rapid pace of product development. If such access or our own operations cause the loss, damage or destruction of our customers’ business data, their sales, lead generation, support and other business operations may be permanently harmed. As a result, our customers may bring claims against us for lost profits and other damages.

Many governments have enacted laws requiring companies to notify individuals of data security incidents or unauthorized transfers involving certain types of personal data. In addition, some of our customers contractually require notification of any data security compromise. Security compromises experienced by our competitors, by our customers or by us may lead to public disclosures, which may lead to widespread negative publicity. Any security compromise in our industry, whether actual or perceived, could harm our reputation, erode customer confidence in the effectiveness of our security measures, negatively impact our ability to attract new customers, cause existing customers to elect not to renew their subscriptions or subject us to third-party lawsuits, regulatory fines or other action or liability, which could materially and adversely affect our business and operating results.

There can be no assurance that any limitations of liability provisions in our contracts for a security breach would be enforceable or adequate or would otherwise protect us from any such liabilities or damages with respect to any particular claim. We also cannot be sure that our existing general liability insurance coverage and coverage for errors or omissions will continue to be available on acceptable terms or will be available in sufficient amounts to cover one or more large claims, or that the insurer will not deny coverage as to any future claim. The successful assertion of one or more large claims against us that exceed available insurance coverage, or the occurrence of changes in our insurance policies, including premium increases or the imposition of large deductible or co-insurance requirements, could have a material adverse effect on our business, financial condition and operating results.

Risks Related to Intellectual Property

Our business may suffer if it is alleged or determined that our technology infringes the intellectual property rights of others.

The software industry is characterized by the existence of a large number of patents, copyrights, trademarks, trade secrets and other intellectual and proprietary rights. Companies in the software industry, including those in marketing software, are often required to defend against litigation claims based on allegations of infringement or other violations of intellectual property rights. Many of our competitors and other industry participants have been issued patents and/or have filed patent applications and may assert patent or other intellectual property rights within the industry. Moreover, in recent years, individuals and groups that are non-practicing entities, commonly referred to as “patent trolls,” have purchased patents and other intellectual property assets for the purpose of making claims of infringement in order to extract settlements. From time to time, we may receive threatening letters or notices or may be the subject of claims that our services and/or platform and underlying technology infringe or violate the intellectual property rights of others. Responding to such claims, regardless of their merit, can be time consuming, costly to defend in litigation, divert management’s attention and resources, damage our reputation and brand and cause us to incur significant expenses. Our technologies may not be able to withstand any third-party claims or rights against their use. Claims of intellectual property infringement might require us to redesign our application, delay releases, enter into costly settlement or license agreements or pay costly damage awards, or face a temporary or permanent injunction prohibiting us from marketing or selling our platform. If we cannot or do not license the infringed technology on reasonable terms or at all, or substitute similar technology from another source, our revenue and operating results could be adversely impacted. Additionally, our customers may not purchase our Growth Platform if they are concerned that they may infringe third-party intellectual property rights. The occurrence of any of these events may have a material adverse effect on our business.

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In our subscription agreements with our customers, we generally do not agree to indemnify our customers against any losses or costs incurred in connection with claims by a third party alleging that a customer’s use of our services or platform infringes the intellectual property rights of the third party. There can be no assurance, however, that customers will not assert a common law indemnity claim or that any existing limitations of liability provisions in our contracts would be enforceable or adequate, or would otherwise protect us from any such liabilities or damages with respect to any particular claim. Our customers who are accused of intellectual property infringement may in the future seek indemnification from us under common law or other legal theories. If such claims are successful, or if we are required to indemnify or defend our customers from these or other claims, these matters could be disruptive to our business and management and have a material adverse effect on our business, operating results and financial condition.

If we fail to adequately protect our proprietary rights, in the United States and abroad, our competitive position could be impaired and we may lose valuable assets, experience reduced revenue and incur costly litigation to protect our rights.

Our success is dependent, in part, upon protecting our proprietary technology. We rely on a combination of copyrights, trademarks, service marks, trade secret laws and contractual restrictions to establish and protect our proprietary rights in our products and services. However, the steps we take to protect our intellectual property may be inadequate. We will not be able to protect our intellectual property if we are unable to enforce our rights or if we do not detect unauthorized use of our intellectual property. Any of our trademarks or other intellectual property rights may be challenged by others or invalidated through administrative process or litigation. Furthermore, legal standards relating to the validity, enforceability and scope of protection of intellectual property rights are uncertain. Despite our precautions, it may be possible for unauthorized third parties to copy our technology and use information that we regard as proprietary to create products and services that compete with ours. Some license provisions protecting against unauthorized use, copying, transfer and disclosure of our offerings may be unenforceable under the laws of certain jurisdictions and foreign countries. In addition, the laws of some countries do not protect proprietary rights to the same extent as the laws of the United States. To the extent we expand our international activities, our exposure to unauthorized copying and use of our technology and proprietary information may increase.

We enter into confidentiality and invention assignment agreements with our employees and consultants and enter into confidentiality agreements with the parties with whom we have strategic relationships and business alliances. No assurance can be given that these agreements will be effective in controlling access to and distribution of our products and proprietary information. Further, these agreements may not prevent our competitors from independently developing technologies that are substantially equivalent or superior to our platform and offerings.

We may be required to spend significant resources to monitor and protect our intellectual property rights. Litigation may be necessary in the future to enforce our intellectual property rights and to protect our trade secrets. Such litigation could be costly, time consuming and distracting to management and could result in the impairment or loss of portions of our intellectual property. Furthermore, our efforts to enforce our intellectual property rights may be met with defenses, counterclaims and countersuits attacking the validity and enforceability of our intellectual property rights. Our inability to protect our proprietary technology against unauthorized copying or use, as well as any costly litigation, could delay further sales or the implementation of our platform and offerings, impair the functionality of our platform and offerings, delay introductions of new features or enhancements, result in our substituting inferior or more costly technologies into our platform and offerings, or injure our reputation.

Our use of “open source” software could negatively affect our ability to offer our platform and subject us to possible litigation.

A substantial portion of our cloud-based platform incorporates so-called “open source” software, and we may incorporate additional open source software in the future. Open source software is generally freely accessible, usable and modifiable. Certain open source licenses may, in certain circumstances, require us to offer the components of our platform that incorporate the open source software for no cost, that we make available source code for modifications or derivative works we create based upon, incorporating or using the open source software and that we license such modifications or derivative works under the terms of the particular open source license. If an author or other third party that distributes open source software we use were to allege that we had not complied with the conditions of one or more of these licenses, we could be required to incur significant legal expenses defending against such allegations and could be subject to significant damages, including being enjoined from the offering of the components of our platform that contained the open source software and being required to comply with the foregoing conditions, which could disrupt our ability to offer the affected software. We could also be subject to suits by parties claiming ownership of what we believe to be open source software. Litigation could be costly for us to defend, have a negative effect on our operating results and financial condition and require us to devote additional research and development resources to change our products.

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Weakened global economic conditions may harm our industry, business and results of operations.

Our overall performance depends in part on worldwide economic conditions. Global financial developments and downturns seemingly unrelated to us or the software industry may harm us. The United States and other key international economies have been affected from time to time by falling demand for a variety of goods and services, restricted credit, poor liquidity, reduced corporate profitability, volatility in credit, equity and foreign exchange markets, bankruptcies, and overall uncertainty with respect to the economy, including with respect to tariff and trade issues. In particular, the economies of countries in Europe have been experiencing weakness associated with high sovereign debt levels, weakness in the banking sector and uncertainty over the future of the Euro zone, including instability surrounding Brexit. We have operations, as well as current and potential new customers, throughout most of Europe. If economic conditions in Europe and other key markets for our platform continue to remain uncertain or deteriorate further, it could adversely affect our customers’ ability or willingness to subscribe to our platform, delay prospective customers’ purchasing decisions, reduce the value or duration of their subscriptions or affect renewal rates, all of which could harm our operating results.

Risks Related to Government Regulation and Taxation

We could face liability, or our reputation might be harmed, as a result of the activities of our customers, the content of their websites or the data they store on our servers.

As a provider of a cloud-based inbound marketing, sales and customer service software platform, we may be subject to potential liability for the activities of our customers on or in connection with the data they store on our servers. Although our customer terms of use prohibit illegal use of our services by our customers and permit us to take down websites or take other appropriate actions for illegal use, customers may nonetheless engage in prohibited activities or upload or store content with us in violation of applicable law or the customer’s own policies, which could subject us to liability or harm our reputation. Furthermore, customers may upload, store, or use content on our Growth Platform that may be violate our policy on acceptable use which prohibits content that is threatening, abusive, harassing, deceptive, false, misleading, vulgar, obscene, or indecent. While such content may not be illegal, use of our Growth Platform for such content could harm our reputation resulting in a loss of business.

Several U.S. federal statutes may apply to us with respect to various customer activities:

• The Digital Millennium Copyright Act of 1998, or DMCA, provides recourse for owners of copyrighted material who believe that their rights under U.S. copyright law have been infringed on the Internet. Under the DMCA, based on our current business activity as an Internet service provider that does not own or control website content posted by our customers, we generally are not liable for infringing content posted by our customers or other third parties, provided that we follow the procedures for handling copyright infringement claims set forth in the DMCA. Generally, if we receive a proper notice from, or on behalf, of a copyright owner alleging infringement of copyrighted material located on websites we host, and we fail to expeditiously remove or disable access to the allegedly infringing material or otherwise fail to meet the requirements of the safe harbor provided by the DMCA, the copyright owner may seek to impose liability on us. Technical mistakes in complying with the detailed DMCA take-down procedures could subject us to liability for copyright infringement.

• The Communications Decency Act of 1996, or CDA, generally protects online service providers, such as us, from liability for certain activities of their customers, such as the posting of defamatory or obscene content, unless the online service provider is participating in the unlawful conduct. Under the CDA, we are generally not responsible for the customer-created content hosted on our servers. Consequently, we do not monitor hosted websites or prescreen the content placed by our customers on their sites. However, there have been various Congressional efforts to restrict the scope of the protections available to online platforms under Section 230 of the CDA, and our current protections from liability for third-party content in the United States could decrease or change. In addition, the CDA does not apply in foreign jurisdictions and we may nonetheless be brought into disputes between our customers and third parties which would require us to devote management time and resources to resolve such matters and any publicity from such matters could also have an adverse effect on our reputation and therefore our business.

• In addition to the CDA, the Securing the Protection of our Enduring and Established Constitutional Heritage Act, or the SPEECH Act, provides a statutory exception to the enforcement by a U.S. court of a foreign judgment for defamation under certain circumstances. Generally, the exception applies if the defamation law applied in the foreign court did not provide at least as much protection for freedom of speech and press as would be provided by the First Amendment of the U.S. Constitution or by the constitution and law of the state in which the U.S. court is located, or if no finding of defamation would be supported under the First Amendment of the U.S. Constitution or under the constitution and law of the state in which the U.S. court is located. Although the SPEECH Act may protect us from the enforcement of foreign judgments in the United States, it does not affect the enforceability of the judgment in the foreign country that issued the judgment. Given our international presence, we may therefore, nonetheless, have to defend against or comply with any foreign judgments made against us, which could take up substantial management time and resources and damage our reputation.

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Although these statutes and case law in the United States have generally shielded us from liability for customer activities to date, court rulings in pending or future litigation may narrow the scope of protection afforded us under these laws. In addition, laws governing these activities are unsettled in many international jurisdictions, or may prove difficult or impossible for us to comply with in some international jurisdictions. Also, notwithstanding the exculpatory language of these bodies of law, we may become involved in complaints and lawsuits which, even if ultimately resolved in our favor, add cost to our doing business and may divert management’s time and attention. Finally, other existing bodies of law, including the criminal laws of various states, may be deemed to apply or new statutes or regulations may be adopted in the future, any of which could expose us to further liability and increase our costs of doing business.

We may be subject to additional obligations to collect and remit sales tax and other taxes, and we may be subject to tax liability for past sales, which could harm our business.

State, local and foreign jurisdictions have differing rules and regulations governing sales, use, value added and other taxes, and these rules and regulations are subject to varying interpretations that may change over time. In particular, the applicability of such taxes to our Growth Platform in various jurisdictions is unclear. Further, these jurisdictions’ rules regarding tax nexus are complex and vary significantly. As a result, we could face the possibility of tax assessments and audits, and our liability for these taxes and associated penalties could exceed our original estimates. A successful assertion that we should be collecting additional sales, use, value added or other taxes in those jurisdictions where we have not historically done so and do not accrue for such taxes could result in substantial tax liabilities and related penalties for past sales, discourage customers from purchasing our application or otherwise harm our business and operating results.

Changes in tax laws or regulations that are applied adversely to us or our customers could increase the costs of our Growth Platform and adversely impact our business.

New income, sales, use or other tax laws, statutes, rules, regulations or ordinances could be enacted at any time. Any new taxes could adversely affect our domestic and international business operations, and our business and financial performance. Further, existing tax laws, statutes, rules, regulations or ordinances could be interpreted, changed, modified or applied adversely to us. These events could require us or our customers to pay additional tax amounts on a prospective or retroactive basis, as well as require us or our customers to pay fines and/or penalties and interest for past amounts deemed to be due. If we raise our prices to offset the costs of these changes, existing and potential future customers may elect not to continue or purchase our Growth Platform in the future. Additionally, new, changed, modified or newly interpreted or applied tax laws could increase our customers’ and our compliance, operating and other costs, as well as the costs of our platform. Any or all of these events could adversely impact our business and financial performance.

We are a multinational organization faced with increasingly complex tax issues in many jurisdictions, and we could be obligated to pay additional taxes in various jurisdictions.

As a multinational organization, we may be subject to taxation in several jurisdictions around the world with increasingly complex tax laws, the application of which can be uncertain. The amount of taxes we pay in these jurisdictions could increase substantially as a result of changes in the applicable tax principles, including increased tax rates, new tax laws or revised interpretations of existing tax laws and precedents, which could have a material adverse effect on our liquidity and operating results. Changes in tax laws, such as tax reform in the United States or changes in tax laws resulting from the Organization for Economic Co-operation and Development’s multi-jurisdictional plan of action to address “base erosion and profit shifting,” could impact our effective tax rate. In addition, the authorities in these jurisdictions could review our tax returns and impose additional tax, interest and penalties, and the authorities could claim that various withholding requirements apply to us or our subsidiaries or assert that benefits of tax treaties are not available to us or our subsidiaries, any of which could have a material impact on us and the results of our operations.

Failure to comply with laws and regulations could harm our business.

Our business is subject to regulation by various federal, state, local and foreign governmental agencies, including agencies responsible for monitoring and enforcing employment and labor laws, workplace safety, environmental laws, consumer protection laws, anti-bribery laws, import/export controls, federal securities laws and tax laws and regulations. In certain jurisdictions, these regulatory requirements may be more stringent than those in the United States. Noncompliance with applicable regulations or requirements could subject us to investigations, sanctions, mandatory recalls, enforcement actions, disgorgement of profits, fines, damages, civil and criminal penalties or injunctions.

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We may not be able to utilize a significant portion of our net operating loss carryforwards, which could adversely affect our profitability.

As of December 31, 2018, we had federal and state net operating loss carryforwards due to prior period losses, which, if not utilized, will begin to expire in 2027 for federal purposes and begin to expire in 2023 for state purposes. These net operating loss carryforwards could expire unused and be unavailable to offset future income tax liabilities, which could adversely affect our profitability. In addition, under Section 382 of the Internal Revenue Code of 1986, as amended, which we refer to as the Code, our ability to utilize net operating loss carryforwards or other tax attributes, such as research tax credits, in any taxable year may be further limited if we experience an ownership change. A Section 382 ownership change generally occurs if one or more stockholders or groups of stockholders who own at least 5% of our stock increase their ownership by more than 50 percentage points over their lowest ownership percentage within a rolling three-year period. Similar rules may apply under state tax laws. Future issuances of our stock could cause an ownership change. It is possible that an ownership change in connection with a future offering, or any future ownership change, could have a material effect on the use of our net operating loss carryforwards or other tax attributes, which could adversely affect our profitability. Net operating loss carryforwards incurred for periods beginning on or after January 1, 2018 would not expire unused as a result of these limitations because they can be carried forward indefinitely.

The standards that private entities use to regulate the use of email have in the past interfered with, and may in the future interfere with, the effectiveness of our Growth Platform and our ability to conduct business.

Our customers rely on email to communicate with their existing or prospective customers. Various private entities attempt to regulate the use of email for commercial solicitation. These entities often advocate standards of conduct or practice that significantly exceed current legal requirements and classify certain email solicitations that comply with current legal requirements as spam. Some of these entities maintain “blacklists” of companies and individuals, and the websites, internet service providers and internet protocol addresses associated with those entities or individuals that do not adhere to those standards of conduct or practices for commercial email solicitations that the blacklisting entity believes are appropriate. If a company’s internet protocol addresses are listed by a blacklisting entity, emails sent from those addresses may be blocked if they are sent to any internet domain or internet address that subscribes to the blacklisting entity’s service or purchases its blacklist.

From time to time, some of our internet protocol addresses may become listed with one or more blacklisting entities due to the messaging practices of our customers. There can be no guarantee that we will be able to successfully remove ourselves from those lists. Blacklisting of this type could interfere with our ability to market our Growth Platform and services and communicate with our customers and, because we fulfill email delivery on behalf of our customers, could undermine the effectiveness of our customers’ email marketing campaigns, all of which could have a material negative impact on our business and results of operations.

Existing federal, state and foreign laws regulate Internet tracking software, the senders of commercial emails and text messages, website owners and other activities, and could impact the use of our Growth Platform and potentially subject us to regulatory enforcement or private litigation.

Certain aspects of how our customers utilize our platform are subject to regulations in the United States, European Union and elsewhere. In recent years, U.S. and European lawmakers and regulators have expressed concern over the use of third-party cookies or web beacons for online behavioral advertising, and legislation adopted recently in the European Union requires informed consent for the placement of a cookie on a user’s device. Additionally, a recent ECJ ruling in Case C-673/17 pertaining to the EU informed consent requirement provided that a pre-checked opt-in is insufficient to constitute a valid active consumer consent to cookie storage. Regulation of cookies and web beacons may lead to restrictions on our activities, such as efforts to understand users’ Internet usage. New and expanding “Do Not Track” regulations have recently been enacted or proposed that protect users’ right to choose whether or not to be tracked online. These regulations seek, among other things, to allow end users to have greater control over the use of private information collected online, to forbid the collection or use of online information, to demand a business to comply with their choice to opt out of such collection or use, and to place limits upon the disclosure of information to third party websites. These policies could have a significant impact on the operation of our Growth Platform and could impair our attractiveness to customers, which would harm our business.

Many of our customers and potential customers in the healthcare, financial services and other industries are subject to substantial regulation regarding their collection, use and protection of data and may be the subject of further regulation in the future. Accordingly, these laws or significant new laws or regulations or changes in, or repeals of, existing laws, regulations or governmental policy may change the way these customers do business and may require us to implement additional features or offer additional contractual terms to satisfy customer and regulatory requirements, or could cause the demand for and sales of our Growth Platform to decrease and adversely impact our financial results.

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In addition, the Controlling the Assault of Non-Solicited Pornography and Marketing Act of 2003, or the CAN-SPAM Act, establishes certain requirements for commercial email messages and specifies penalties for the transmission of commercial email messages that are intended to deceive the recipient as to source or content. The CAN-SPAM Act, among other things, obligates the sender of commercial emails to provide recipients with the ability to opt out of receiving future commercial emails from the sender. The ability of our customers’ message recipients to opt out of receiving commercial emails may minimize the effectiveness of the email components of our Growth Platform. In addition, certain states and foreign jurisdictions, such as Australia, Canada and the European Union, have enacted laws that regulate sending email, and some of these laws are more restrictive than U.S. laws. For example, some foreign laws prohibit sending unsolicited email unless the recipient has provided the sender advance consent to receipt of such email, or in other words has “opted-in” to receiving it. A requirement that recipients opt into, or the ability of recipients to opt out of, receiving commercial emails may minimize the effectiveness of our platform.

While these laws and regulations generally govern our customers’ use of our platform, we may be subject to certain laws as a data processor on behalf of, or as a business associate of, our customers. For example, laws and regulations governing the collection, use and disclosure of personal information include, in the United States, rules and regulations promulgated under the authority of the Federal Trade Commission, the Health Insurance Portability and Accountability Act of 1996, the Gramm-Leach-Bliley Act of 1999 and state breach notification laws, and internationally, the Data Protection Directive in the European Union and the Federal Data Protection Act in Germany. If we were found to be in violation of any of these laws or regulations as a result of government enforcement or private litigation, we could be subjected to civil and criminal sanctions, including both monetary fines and injunctive action that could force us to change our business practices, all of which could adversely affect our financial performance and significantly harm our reputation and our business.

We are subject to governmental export controls and economic sanctions laws that could impair our ability to compete in international markets and subject us to liability if we are not in full compliance with applicable laws.

Our business activities are subject to various restrictions under U.S. export controls and trade and economic sanctions laws, including the U.S. Commerce Department’s Export Administration Regulations and economic and trade sanctions regulations maintained by the U.S. Treasury Department’s Office of Foreign Assets Control. If we fail to comply with these laws and regulations, we and certain of our employees could be subject to civil or criminal penalties and reputational harm. Obtaining the necessary authorizations, including any required license, for a particular transaction may be time-consuming, is not guaranteed, and may result in the delay or loss of sales opportunities. Furthermore, U.S. export control laws and economic sanctions laws prohibit certain transactions with U.S. embargoed or sanctioned countries, governments, persons and entities. Although we take precautions to prevent transactions with U.S. sanction targets, the possibility exists that we could inadvertently provide our solutions to persons prohibited by U.S. sanctions. This could result in negative consequences to us, including government investigations, penalties and reputational harm.

Risks Related to Our Operating Results and Financial Condition

We may experience quarterly fluctuations in our operating results due to a number of factors, which makes our future results difficult to predict and could cause our operating results to fall below expectations or our guidance.

Our quarterly operating results have fluctuated in the past and are expected to fluctuate in the future due to a variety of factors, many of which are outside of our control. As a result, our past results may not be indicative of our future performance, and comparing our operating results on a period-to-period basis may not be meaningful. In addition to the other risks described in this Quarterly Report on Form 10-Q, factors that may affect our quarterly operating results include the following:

• changes in spending on marketing, sales and customer service software by our current or prospective customers;

• pricing our Growth Platform subscriptions effectively so that we are able to attract and retain customers without compromising our profitability;

• attracting new customers for our marketing, sales and customer service software, increasing our existing customers’ use of our platform and providing our customers with excellent customer support;

• customer renewal rates and the amounts for which agreements are renewed;

• global awareness of our thought leadership and brand;

• changes in the competitive dynamics of our market, including consolidation among competitors or customers and the introduction of new products or product enhancements;

• changes to the commission plans, quotas and other compensation-related metrics for our sales representatives;

• the amount and timing of payment for operating expenses, particularly research and development, sales and marketing expenses and employee benefit expenses;

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• the amount and timing of costs associated with recruiting, training and integrating new employees while maintaining our company culture;

• our ability to manage our existing business and future growth, including increases in the number of customers on our platform and the introduction and adoption of our Growth Platform in new markets outside of the United States;

• unforeseen costs and expenses related to the expansion of our business, operations and infrastructure, including disruptions in our hosting network infrastructure and privacy and data security;

• foreign currency exchange rate fluctuations; and

• general economic and political conditions in our domestic and international markets.

We may not be able to accurately forecast the amount and mix of future subscriptions, revenue and expenses and, as a result, our operating results may fall below our estimates or the expectations of public market analysts and investors. If our revenue or operating results fall below the expectations of investors or securities analysts, or below any guidance we may provide, the price of our common stock could decline.

If we do not accurately predict subscription renewal rates or otherwise fail to forecast our revenue accurately, or if we fail to match our expenditures with corresponding revenue, our operating results could be adversely affected.

Because our recent growth has resulted in the rapid expansion of our business, we do not have a long history upon which to base forecasts of renewal rates with customers or future operating revenue. As a result, our operating results in future reporting periods may be significantly below the expectations of the public market, equity research analysts or investors, which could harm the price of our common stock.

Because we generally recognize revenue from subscriptions ratably over the term of the agreement, near term changes in sales may not be reflected immediately in our operating results.

We offer our Growth Platform primarily through a mix of monthly, quarterly and single-year subscription agreements and generally recognize revenue ratably over the related subscription period. As a result, much of the revenue we report in each quarter is derived from agreements entered into during prior months, quarters or years. In addition, we do not record deferred revenue beyond amounts invoiced as a liability on our balance sheet. A decline in new or renewed subscriptions or marketing solutions agreements in any one quarter is not likely to be reflected immediately in our revenue results for that quarter. Such declines, however, would negatively affect our revenue and deferred revenue balances in future periods, and the effect of significant downturns in sales and market acceptance of our platform, and potential changes in our rate of renewals, may not be fully reflected in our results of operations until future periods. Our subscription model also makes it difficult for us to rapidly increase our total revenue and deferred revenue balance through additional sales in any period, as revenue from new customers must be recognized over the applicable subscription term.

Servicing our debt may require a significant amount of cash.  We may not have sufficient cash flow from our business to pay our indebtedness, and we may not have the ability to raise the funds necessary to settle for cash conversions of the 2022 Notes or to repurchase the 2022 Notes for cash upon a fundamental change, which could adversely affect our business and results of operations.

We incurred indebtedness in the aggregate principal amount of $400.0 million in connection with the issuance of our 0.25% convertible senior notes due June 1, 2022 (the “2022 Notes”). Our ability to make scheduled payments of the principal of, to pay interest on or to refinance our indebtedness, including the 2022 Notes, depends on our future performance, which is subject to economic, financial, competitive and other factors beyond our control. Our business may not continue to generate cash flow from operations in the future sufficient to service our debt and make necessary capital expenditures. If we are unable to generate such cash flow, we may be required to adopt one or more alternatives, such as selling assets, restructuring debt or obtaining additional debt financing or equity capital on terms that may be onerous or highly dilutive. Our ability to refinance any future indebtedness will depend on the capital markets and our financial condition at such time. We may not be able to engage in any of these activities or engage in these activities on desirable terms, which could result in a default on our debt obligations. In addition, any of our future debt agreements may contain restrictive covenants that may prohibit us from adopting any of these alternatives. Our failure to comply with these covenants could result in an event of default which, if not cured or waived, could result in the acceleration of our debt.

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In addition, holders of the 2022 Notes have the right to require us to repurchase their 2022 Notes upon the occurrence of a fundamental change at a fundamental change repurchase price equal to 100% of the principal amount of the 2022 Notes to be repurchased, plus accrued and unpaid interest, if any.  Upon conversion of the 2022 Notes, unless we elect to deliver solely shares of our common stock to settle such conversion (other than paying cash in lieu of delivering any fractional share), we will be required to make cash payments in respect of the 2022 Notes being converted.  We may not have enough available cash or be able to obtain financing at the time we are required to make repurchases of 2022 Notes surrendered therefor or 2022 Notes being converted. In addition, our ability to repurchase the 2022 Notes or to pay cash upon conversions of the 2022 Notes may be limited by law, by regulatory authority or by agreements governing our future indebtedness. Our failure to repurchase 2022 Notes at a time when the repurchase is required by the indenture governing the notes or to pay any cash payable on future conversions of the 2022 Notes as required by such indenture would constitute a default under such indenture. A default under the indenture or the fundamental change itself could also lead to a default under agreements governing our future indebtedness. If the repayment of the related indebtedness were to be accelerated after any applicable notice or grace periods, we may not have sufficient funds to repay the indebtedness and repurchase the 2022 Notes or make cash payments upon conversions thereof.

In addition, our indebtedness, combined with our other financial obligations and contractual commitments, could have other important consequences.  For example, it could:

• make us more vulnerable to adverse changes in general U.S. and worldwide economic, industry and competitive conditions and adverse changes in government regulation;

• limit our flexibility in planning for, or reacting to, changes in our business and our industry;

• place us at a disadvantage compared to our competitors who have less debt; and

• limit our ability to borrow additional amounts to fund acquisitions, for working capital and for other general corporate purposes.

Any of these factors could materially and adversely affect our business, financial condition and results of operations. In addition, if we incur additional indebtedness, the risks related to our business and our ability to service or repay our indebtedness would increase.

The conditional conversion feature of the 2022 Notes, if triggered, may adversely affect our financial condition and operating results.

In the event the conditional conversion feature of the 2022 Notes is triggered, holders of 2022 Notes will be entitled to convert the 2022 Notes at any time during specified periods at their option. Because the last reported sale price of our common stock for at least 20 trading days during the period of 30 consecutive trading days ending on the last trading day of the calendar quarter ended September 30, 2019 was equal to or greater than 130% of the applicable conversion price on each applicable trading day, the 2022 Notes are convertible at the option of the holders thereof during the calendar quarter ending December 31 , 2019. As of November 1, 2019, the Company has received conversion notices for approximately $8 thousand of the principal balance of the 2022 Notes, which will be settled in cash during the quarter ended December 31, 2019.Whether the 2022 Notes will be convertible following such calendar quarter will depend on the continued satisfaction of this condition or another conversion condition in the future. If one or more holders elect to convert their 2022 Notes, unless we elect to satisfy our conversion obligation by delivering solely shares of our common stock (other than paying cash in lieu of delivering any fractional share), we would be required to settle a portion or all of our conversion obligation through the payment of cash, which could adversely affect our liquidity. In addition, even if holders do not elect to convert their 2022 Notes, we could be required under applicable accounting rules to reclassify all or a portion of the outstanding principal of the 2022 Notes as a current rather than long-term liability, which would result in a material reduction of our net working capital.

The accounting method for convertible debt securities that may be settled in cash, such as the 2022 Notes, could have a material effect on our reported financial results.

Under Financial Accounting Standards Board Accounting Standards Codification 470-20, Debt with Conversion and Other Options, which we refer to as ASC 470-20, an entity must separately account for the liability and equity components of convertible debt instruments (such as the 2022 Notes) that may be settled entirely or partially in cash upon conversion in a manner that reflects the issuer’s economic interest cost. ASC 470-20 requires the value of the conversion option of the 2022 Notes, representing the equity component, to be recorded as additional paid-in capital within stockholders’ equity in our consolidated balance sheet and as a discount to the 2022 Notes, which reduces their initial carrying value. The carrying value of the 2022 Notes, net of the discount recorded, will be accreted up to the principal amount of the 2022 Notes from the issuance date until maturity, which will result in non-cash charges to interest expense in our consolidated statement of operations. Accordingly, we will report lower net income or higher net loss in our financial results because ASC 470-20 requires interest to include both the current period’s accretion of the debt discount and the instrument’s coupon interest, which could adversely affect our reported or future financial results, the trading price of our common stock and the trading price of the 2022 Notes.  

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In addition, under certain circumstances, convertible debt instruments (such as the 2022 Notes) that may be settled entirely or partly in cash are currently accounted for utilizing the treasury stock method, the effect of which is that the shares issuable upon conversion of the 2022 Notes are not included in the calculation of diluted earnings per share except to the extent that the conversion value of the 2022 Notes exceeds their principal amount. Under the treasury stock method, for diluted earnings per share purposes, the transaction is accounted for as if the number of shares of common stock that would be necessary to settle such excess, if we elected to settle such excess in shares, are issued. We cannot be sure that the accounting standards in the future will continue to permit the use of the treasury stock method. If we are unable to use the treasury stock method in accounting for the shares issuable upon conversion of the 2022 Notes, then our diluted earnings per share would be adversely affected.

We are exposed to fluctuations in currency exchange rates.

We face exposure to movements in currency exchange rates, which may cause our revenue and operating results to differ materially from expectations. As we have expanded our international operations our exposure exchange rate fluctuations has increased, in particular with respect to the Euro, British Pound Sterling, Australian Dollar, Singapore Dollar, Japanese Yen and Colombian Peso. As exchange rates vary, revenue, cost of revenue, operating expenses and other operating results, when re-measured, may differ materially from expectations. In addition, our operating results are subject to fluctuation if our mix of U.S. and foreign currency denominated transactions and expenses changes in the future. Furthermore, global political events, including Brexit and similar geopolitical developments, fluctuating commodity prices and trade tariff developments, have caused global economic uncertainty, which could amplify the volatility of currency fluctuations. Such volatility, even when it increases our revenues or decreases our expenses, impacts our ability to predict our future results and earnings accurately. Although we may apply certain strategies to mitigate foreign currency risk, these strategies might not eliminate our exposure to foreign exchange rate fluctuations and would involve costs and risks of their own, such as ongoing management time and expertise, external costs to implement the strategies and potential accounting implications. Additionally, as we anticipate growing our business further outside of the United States, the effects of movements in currency exchange rates will increase as our transaction volume outside of the United States increases.

Risks Related to Our Common Stock

Our stock price may be volatile and you may be unable to sell your shares at or above the price you purchased them.

The trading prices of the securities of technology companies, including providers of software via the cloud-based model, have been highly volatile. Since shares of our common stock were sold in our initial public offering in October 2014 at a price of $25.00 per share, our stock price has ranged from $25.79 to $207.98 through September 30, 2019. The market price of our common stock may fluctuate significantly in response to numerous factors, many of which are beyond our control, including:

• actual or anticipated fluctuations in our revenue and other operating results, including as a result of the addition or loss of any number of customers;

• announcements by us or our competitors of significant technical innovations, acquisitions, strategic partnerships, joint ventures or capital commitments;

• the financial projections we may provide to the public, any changes in these projections or our failure to meet these projections;

• failure of securities analysts to initiate or maintain coverage of us, changes in ratings and financial estimates and the publication of other news by any securities analysts who follow our company, or our failure to meet these estimates or the expectations of investors;

• changes in operating performance and stock market valuations of cloud-based software or other technology companies, or those in our industry in particular;

• price and volume fluctuations in the trading of our common stock and in the overall stock market, including as a result of trends in the economy as a whole;

• sales of large blocks of our common stock or the dilutive effect of our 2022 Notes or any other equity or equity-linked financings;

• new laws or regulations or new interpretations of existing laws or regulations applicable to our business or industry, including data privacy and data security;

• lawsuits threatened or filed against us;

• changes in key personnel; and

• other events or factors, including changes in general economic, industry and market conditions and trends.

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In addition, the stock markets have experienced extreme price and volume fluctuations that have affected and continue to affect the market prices of equity securities of many technology companies. Stock prices of many technology companies have fluctuated in a manner unrelated or disproportionate to the operating performance of those companies.

In the past, stockholders have instituted securities class action litigation following periods of market volatility. If we were to become involved in securities litigation, it could subject us to substantial costs, divert resources and the attention of management from our business and adversely affect our business.

If we fail to maintain an effective system of disclosure controls and internal control over financial reporting, our ability to produce timely and accurate financial statements or comply with applicable regulations could be impaired.

As a public company we are subject to the reporting requirements of the Securities Exchange Act of 1934, as amended, or the Exchange Act, the Sarbanes-Oxley Act of 2002, or the Sarbanes-Oxley Act, the Dodd-Frank Wall Street Reform and Consumer Protection Act, or the Dodd-Frank Act, and the rules and regulations of the New York Stock Exchange, or NYSE. We expect that compliance with these rules and regulations will continue to increase our legal, accounting and financial compliance costs, make some activities more difficult, time consuming and costly, and place significant strain on our personnel, systems and resources.

The Sarbanes-Oxley Act requires, among other things, that we assess the effectiveness of our internal control over financial reporting annually and the effectiveness of our disclosure controls and procedures quarterly. In particular, Section 404 of the Sarbanes-Oxley Act, or Section 404, requires us to perform system and process evaluation and testing of our internal control over financial reporting to allow management to report on, and our independent registered public accounting firm to attest to, the effectiveness of our internal control over financial reporting. Our compliance with applicable provisions of Section 404 requires that we incur substantial accounting expense and expend significant management time on compliance-related issues as we implement additional corporate governance practices and comply with reporting requirements. Moreover, if we are not able to comply with the requirements of Section 404 applicable to us in a timely manner, or if we or our independent registered public accounting firm identifies deficiencies in our internal control over financial reporting that are deemed to be material weaknesses, the market price of our stock could decline and we could be subject to sanctions or investigations by the SEC or other regulatory authorities, which would require additional financial and management resources.

Furthermore, investor perceptions of our company may suffer if deficiencies are found, and this could cause a decline in the market price of our stock. Irrespective of compliance with Section 404, any failure of our internal control over financial reporting could have a material adverse effect on our stated operating results and harm our reputation. If we are unable to implement these requirements effectively or efficiently, it could harm our operations, financial reporting, or financial results and could result in an adverse opinion on our internal controls from our independent registered public accounting firm.

Our ability to raise capital in the future may be limited, and our failure to raise capital when needed could prevent us from growing.

Our business and operations may consume resources faster than we anticipate. In the future, we may need to raise additional funds to invest in future growth opportunities. Additional financing may not be available on favorable terms, if at all. If adequate funds are not available on acceptable terms, we may be unable to invest in future growth opportunities, which could seriously harm our business and operating results. If we incur debt, the debt holders would have rights senior to common stockholders to make claims on our assets, and the terms of any debt could restrict our operations, including our ability to pay dividends on our common stock. Furthermore, if we issue equity securities, stockholders will experience dilution, and the new equity securities could have rights senior to those of our common stock. The 2022 Notes are and any additional equity or equity-linked financings would be dilutive to our stockholders. Because our decision to issue securities in any future offering will depend on market conditions and other factors beyond our control, we cannot predict or estimate the amount, timing or nature of our future offerings. As a result, our stockholders bear the risk of our future securities offerings reducing the market price of our common stock and diluting their interest.

Anti-takeover provisions in our charter documents and Delaware law may delay or prevent an acquisition of our company.

Our amended and restated certificate of incorporation, amended and restated bylaws and Delaware law contain provisions that may have the effect of delaying or preventing a change in control of us or changes in our management. Our amended and restated certificate of incorporation and bylaws include provisions that:

• authorize “blank check” preferred stock, which could be issued by the board without stockholder approval and may contain voting, liquidation, dividend and other rights superior to our common stock;

• provide for a classified board of directors whose members serve staggered three-year terms;

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• specify that special meetings of our stockholders can be called only by our board of directors, the chairperson of the board, the chief executive officer or the president;

• prohibit stockholder action by written consent;

• establish an advance notice procedure for stockholder approvals to be brought before an annual meeting of our stockholders, including proposed nominations of persons for election to our board of directors;

• provide that our directors may be removed only for cause;

• provide that vacancies on our board of directors may be filled only by a majority of directors then in office, even though less than a quorum;

• specify that no stockholder is permitted to cumulate votes at any election of directors;

• authorize our board of directors to modify, alter or repeal our amended and restated bylaws; and

• require supermajority votes of the holders of our common stock to amend specified provisions of our charter documents.

These provisions, alone or together, could delay or prevent hostile takeovers and changes in control or changes in our management.

In addition, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which limits the ability of stockholders owning in excess of 15% of our outstanding voting stock to merge or combine with us in certain circumstances.

Any provision of our amended and restated certificate of incorporation or amended and restated bylaws or Delaware law that has the effect of delaying or deterring a change in control could limit the opportunity for our stockholders to receive a premium for their shares of our common stock, and could also affect the price that some investors are willing to pay for our common stock.

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

None.

Item 3. Defaults on Senior Securities

None.

Item 4. Mine Safety Disclosures

Not Applicable.

Item 5. Other Information

None.

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Item 6. Exhibits

The exhibits listed below are filed or incorporated by reference into this Report.

Exhibit Number	Exhibit Title
3.1(1)	Amended and Restated Certificate of Incorporation of the Registrant
3.2(2)	Second Amended and Restated Bylaws of the Registrant
31.1(3)	Certification of Principal Executive Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended
31.2(3)	Certification of Principal Financial Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended
32.1+	Certification of Principal Executive Officer and Principal Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act
101.INS	Inline eXtensible Business Reporting Language (XBRL) Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH	Inline XBRL Taxonomy Extension Schema Document (3)
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document (3)
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document (3)
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document (3)
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document (3)
104	Cover Page Interactive Data File (formatted as inline XBRL with applicable taxonomy extension information contained in Exhibits 101.)

(1) Filed as Exhibit 3.1 to Registrant’s Form 10-K filed with the Securities and Exchange Commission on February 24, 2016 and incorporated herein by reference.

(2) Filed as Exhibit 3.1 to Registrant’s Form 8-K filed with the Securities and Exchange Commission on April 25, 2018 and incorporated herein by reference.

(3) Filed herewith.

+ The certifications furnished in Exhibit 32.1 hereto are deemed to accompany this Quarterly Report on Form 10-Q and will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, except to the extent that the Registrant specifically incorporates it by reference. Such certifications will not be deemed to be incorporated by reference into any filings under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, except to the extent that the Registrant specifically incorporates it by reference.

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SIGNATURES

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

HUBSPOT, INC.
By:	/s/ Kate Bueker
Name:	Kate Bueker
Title:	Chief Financial Officer (Principal Financial and Accounting Officer and Authorized Signatory)

November 5, 2019

EX-31.1

Exhibit 31.1

Certification of Chief Executive Officer

Pursuant to

Exchange Act Rules 13a-14(a) and 15d-14(a),

As Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Brian Halligan, certify that:

1. I have reviewed this quarterly report on Form 10-Q of HubSpot, Inc.;

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

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

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

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

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

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

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

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

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

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

Date: November 5, 2019	By:	/s/ Brian Halligan
		Brian Halligan
		Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certification of Chief Financial Officer

Pursuant to

Exchange Act Rules 13a-14(a) and 15d-14(a),

As Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Kate Bueker, certify that:

1. I have reviewed this quarterly report on Form 10-Q of HubSpot, Inc.;

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

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

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

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

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

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

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

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

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

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

Date: November 5, 2019	By:	Kate Bueker
		Kate Bueker
		Chief Financial Officer (Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Brian Halligan, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge, the Quarterly Report on Form 10-Q of HubSpot, Inc. for the period ended September 30, 2019 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of HubSpot, Inc.

Date: November 5, 2019	By:	/s/ Brian Halligan
		Brian Halligan
		Chief Executive Officer (Principal Executive Officer)

I, Kate Bueker, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge, the Quarterly Report on Form 10-Q of HubSpot, Inc. for the period ended September 30, 2019 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of HubSpot, Inc.

Date: November 5, 2019	By:	/s/ Kate Bueker
		Kate Bueker
		Chief Financial Officer (Principal Financial Officer)

The foregoing certifications are not deemed filed with the Securities and Exchange Commission for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (Exchange Act), and are not to be incorporated by reference into any filing of HubSpot, Inc. under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

XML

Stock-Based Compensation Expense - Effect of Stock-Based Compensation on Income by Line Item (Detail) - 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, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 23,791	$ 19,612	$ 73,659	$ 55,334
Cost of Revenue, Subscription [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	854	391	2,291	985
Cost of Revenue, Professional Services and Other [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	614	803	2,298	2,339
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	8,019	5,990	25,663	16,866
Sales and Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	8,947	7,898	27,275	22,327
General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 5,357	$ 4,530	$ 16,132	$ 12,817

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Changes in Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended		9 Months Ended
	Feb. 19, 2019	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Class Of Stock [Line Items]
Beginning Balance, Amount		$ 618,144	$ 227,639	$ 244,641	$ 210,360	$ 244,641	$ 210,360
Issuance of common stock under stock plans, net of shares withheld for employee taxes		2,184	359	7,757	9,016
Issuance of common stock in relation to common stock offering, net of offering costs incurred $365				342,630
Stock-based compensation		24,161	20,133	50,609	37,067
Cumulative adjustment from adoption of stock compensation standard					5,526
Cumulative translation adjustment		(947)	(126)	(50)	(422)
Unrealized gain (loss) on investments, net of income taxes of $269, (12), 0 and 0		(203)	71	1,014	(235)
Net loss		(14,987)	(18,663)	(28,457)	(33,673)	(43,444)	(52,336)
Ending Balance, Amount		628,352	229,413	618,144	227,639	628,352	229,413
Common Stock [Member]
Class Of Stock [Line Items]
Beginning Balance, Amount		$ 43	$ 39	$ 40	$ 38	$ 40	$ 38
Beginning Balance, Shares		42,276	38,533	39,300	37,503	39,300	37,503
Issuance of common stock under stock plans, net of shares withheld for employee taxes			$ 1	$ 1	$ 1
Issuance of common stock under stock plans, net of shares withheld for employee taxes, Shares		363	374	825	1,030
Issuance of common stock in relation to common stock offering, net of offering costs incurred $365				$ 2
Issuance of common stock in relation to common stock offering, net of offering costs incurred $365, Shares	2,200			2,151
Ending Balance, Amount		$ 43	$ 40	$ 43	$ 39	$ 43	$ 40
Ending Balance, Shares		42,639	38,907	42,276	38,533	42,639	38,907
Additional Paid-In Capital [Member]
Class Of Stock [Line Items]
Beginning Balance, Amount		$ 990,701	$ 542,543	$ 589,708	$ 496,461	$ 589,708	$ 496,461
Issuance of common stock under stock plans, net of shares withheld for employee taxes		2,184	358	7,756	9,015
Issuance of common stock in relation to common stock offering, net of offering costs incurred $365				342,628
Stock-based compensation		24,161	20,133	50,609	37,067
Ending Balance, Amount		1,017,046	563,034	990,701	542,543	1,017,046	563,034
Accumulated Other Comprehensive Loss [Member]
Class Of Stock [Line Items]
Beginning Balance, Amount		241	(714)	(723)	(57)	(723)	(57)
Cumulative translation adjustment		(947)	(126)	(50)	(422)
Unrealized gain (loss) on investments, net of income taxes of $269, (12), 0 and 0		(203)	71	1,014	(235)
Ending Balance, Amount		(909)	(769)	241	(714)	(909)	(769)
Accumulated Deficit [Member]
Class Of Stock [Line Items]
Beginning Balance, Amount		(372,841)	(314,229)	(344,384)	(286,082)	(344,384)	(286,082)
Cumulative adjustment from adoption of stock compensation standard					5,526
Net loss		(14,987)	(18,663)	(28,457)	(33,673)
Ending Balance, Amount		$ (387,828)	$ (332,892)	$ (372,841)	$ (314,229)	$ (387,828)	$ (332,892)

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Leases - Summary of Weighted Average Remaining Lease Terms and Weighted Average Discount Rate for Operating and Finance Leases (Detail)	Sep. 30, 2019
Weighted-average remaining lease term:
Operating leases	9 years 6 months
Finance leases	6 months
Weighted-average discount rate:
Operating leases	5.80%
Finance leases	3.80%

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Net Loss per Share - Schedule of Potentially Dilutive Common Stock Equivalents (Detail) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Options to Purchase Common Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	1,532	1,905
RSUs [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	1,688	2,020
Conversion Option of the 2022 Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	1,995	1,311
Common Stock Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	1,500	664
ESPP [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	8	29

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Fair Value of Financial Instruments - Summary of Composition of Short and Long Term Investments (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 781,806	$ 492,537
Unrealized Gains	760	59
Unrealized Losses	(17)	(385)
Aggregate Fair Value	782,549	492,211
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		8,256
Unrealized Losses		(14)
Aggregate Fair Value		8,242
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	83,174	70,958
Unrealized Gains	269	3
Unrealized Losses	(17)	(233)
Aggregate Fair Value	83,426	70,728
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	698,632	413,323
Unrealized Gains	491	56
Unrealized Losses		(138)
Aggregate Fair Value	$ 699,123	$ 413,241

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Restricted cash (Tables)

9 Months Ended

Sep. 30, 2019

Cash And Cash Equivalents [Abstract]

Summary of Reconciliation of Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statement of cash flows for the nine months ended September 30, 2019 and 2018.

	September 30, 2019		September 30, 2018		December 31,  2018
	(in thousands)
Cash and cash equivalents	$	225,770	$	96,122	$	111,489
Restricted cash		6,019		5,175		5,175
Restricted cash, included in other assets		1,505		450		450
Total cash, cash equivalents, and restricted cash	$	233,294	$	101,747	$	117,114

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Organization and Operations (Policies)

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Recent Accounting Pronouncements

Recent Accounting Pronouncements

Recent accounting standards not included below are not expected to have a material impact on our consolidated financial position and results of operations.

In June 2018, the Financial Accounting Standards Board (“FASB”) issued guidance for stock-based compensation to include share-based payment transactions for acquiring goods and services from nonemployees. The guidance was adopted on January 1, 2019 and did not have a material impact on the consolidated financial statements.

In January 2017, the FASB issued guidance simplifying the accounting for goodwill impairment by removing Step 2 of the goodwill impairment test. Under current guidance, Step 2 of the goodwill impairment test requires entities to calculate the implied fair value of goodwill in the same manner as the amount of goodwill recognized in a business combination by assigning the fair value of a reporting unit to all of the assets and liabilities of the reporting unit. The carrying value in excess of the implied fair value is recognized as goodwill impairment. Under the new standard, goodwill impairment is recognized based on Step 1 of the current guidance, which calculates the carrying value in excess of the reporting unit’s fair value. The new standard is effective beginning in January 2020, with early adoption permitted. The Company does not believe the adoption of this guidance will have a material impact on the consolidated financial statements.

In June 2016, the FASB issued guidance that introduces a new methodology for accounting for credit losses on financial instruments. The guidance establishes a new forward-looking "expected loss model" that requires entities to estimate current expected credit losses on accounts receivable and financial instruments by using all practical and relevant information. The guidance will be effective for the Company on January 1, 2020. Adoption of the standard will be applied using a modified retrospective approach through a cumulative-effect adjustment to retained earnings as of the effective date. The Company does not believe the adoption of this guidance will have a material impact on the consolidated financial statements.

In February 2016, the FASB issued guidance related to leases to increase transparency and comparability among organizations by requiring the recognition of right-of-use assets and lease liabilities on the balance sheet, while maintaining consistency with historical accounting for the recognition of expense on their income statements. Most prominent among the changes in the guidance is the recognition of right-of-use assets and lease liabilities by lessees for those leases classified as operating leases. Additional disclosures are required to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases.  The Company adopted the updated guidance as of January 1, 2019 using a modified retrospective transition method with a cumulative-effect adjustment as of the adoption date, as permitted by the guidance. Comparative periods are not adjusted.  See Note 2 of these consolidated financial statements for further details.

Revenue

Revenues

Disaggregation of Revenue

The Company provides disaggregation of revenue based on geographic region (Note 14) and based on the subscription versus professional services and other classification on the consolidated statements of operations as it believes these best depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors.

Deferred Revenue, Deferred Commission Expense, and Accrued Expenses and Other Current Liabilities

Amounts that have been invoiced are recorded in accounts receivable and deferred revenue or revenue, depending on whether the revenue recognition criteria have been met. Deferred revenue represents amounts billed for which revenue has not yet been recognized. Deferred revenue that will be recognized during the succeeding 12-month period is recorded as current deferred revenue, and the remaining portion is recorded as long-term deferred revenue.  Deferred revenue during the nine months ended September 30, 2019 increased by $18.1 million resulting from $506.8 million of additional invoicing and was offset by revenue recognized of $488.7 million during the same period. $105.1 million of revenue was recognized during the three month period ended September 30, 2019 that was included in deferred revenue at the beginning of the period. $163.2 million of revenue was recognized during the nine month period ended September 30, 2019 that was included in deferred revenue at the beginning of the period. As of September 30, 2019, approximately $153.5 million of revenue is expected to be recognized from remaining performance obligations for contracts with original performance obligations that exceed one year.  The Company expects to recognize revenue on approximately 94.3% of these remaining performance obligations over the next 24 months, with the balance recognized thereafter.  

Additional contract liabilities of $1.4 million and $1.6 million were included in accrued expenses and other current liabilities on the consolidated balance sheet as of September 30, 2019 and December 31, 2018.

The incremental direct costs of obtaining a contract, which primarily consist of sales commissions paid for new subscription contracts, are deferred and amortized on a straight-line basis over a period of approximately one to three years.  The one to three-year period has been determined by taking into consideration the type of product sold, the commitment term of the customer contract, the nature of the Company’s technology development life-cycle, and an estimated customer relationship period.  Sales commissions for upgrade contracts are deferred and amortized on a straight-line basis over the remaining estimated customer relationship period of the related customer.  Deferred commission expense that will be recorded as expense during the succeeding 12-month period is recorded as current deferred commission expense, and the remaining portion is recorded as long-term deferred commission expense. Deferred commission expense during the three months ended September 30, 2019 decreased by $0.6 million as a result of deferring incremental costs of obtaining a contract of $8.5 million and was offset by amortization of $9.1 million during the same period. Deferred commission expense during the nine months ended September 30, 2019 increased by $4.9 million as a result of deferring incremental costs of obtaining a contract of $28.8 million and was offset by amortization of $23.9 million during the same period.  

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Changes in Accumulated Other Comprehensive Loss

9 Months Ended

Sep. 30, 2019

Equity [Abstract]

Changes in Accumulated Other Comprehensive Loss

12. Changes in Accumulated Other Comprehensive Loss

The following table summarizes the changes in accumulated other comprehensive loss, which is reported as a component of stockholders’ equity, for the nine months ended September 30, 2019.

	Cumulative Translation Adjustment			Unrealized Gain on Investments			Total
	(in thousands)
Beginning balance at January 1, 2019	$	(397	)	$	(326	)	$	(723	)
Other comprehensive loss before reclassifications		(997	)		811		$	(186	)
Amounts reclassified from accumulated other    comprehensive income		—			—			—
Ending balance at September 30, 2019	$	(1,394	)	$	485		$	(909	)

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Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Total revenue	$ 173,621	$ 131,826	$ 488,674	$ 368,958
Cost of revenues:
Total cost of revenues	33,263	25,765	93,983	72,993
Gross profit	140,358	106,061	394,691	295,965
Operating expenses:
Research and development	39,847	30,761	115,480	85,598
Sales and marketing	91,283	71,293	250,267	196,484
General and administrative	23,300	19,057	67,777	54,309
Total operating expenses	154,430	121,111	433,524	336,391
Loss from operations	(14,072)	(15,050)	(38,833)	(40,426)
Other expense:
Interest income	5,185	2,416	14,783	6,332
Interest expense	(5,760)	(5,393)	(16,946)	(15,893)
Other expense	(89)	(277)	(773)	(1,087)
Total other expense	(664)	(3,254)	(2,936)	(10,648)
Loss before income tax expense	(14,736)	(18,304)	(41,769)	(51,074)
Income tax expense	(251)	(359)	(1,675)	(1,262)
Net loss	$ (14,987)	$ (18,663)	$ (43,444)	$ (52,336)
Net loss per share, basic and diluted	$ (0.35)	$ (0.48)	$ (1.04)	$ (1.37)
Weighted average common shares used in computing basic and diluted net loss per share:	42,531	38,762	41,749	38,319
Subscription [Member]
Revenues:
Total revenue	$ 167,078	$ 125,478	$ 467,180	$ 350,646
Cost of revenues:
Total cost of revenues	25,671	17,777	70,550	49,976
Professional Services and Other [Member]
Revenues:
Total revenue	6,543	6,348	21,494	18,312
Cost of revenues:
Total cost of revenues	$ 7,592	$ 7,988	$ 23,433	$ 23,017

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Consolidated Statements of Cash Flows (Parenthetical) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Statement Of Cash Flows [Abstract]
Offering costs paid	$ 365

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0.25% Convertible Senior Notes, Convertible Note Hedge and Warrant (Tables)

9 Months Ended

Sep. 30, 2019

Debt Instrument [Line Items]

Schedule of Interest Expense

Interest expense related to the 2022 Notes is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Contractual interest expense	$	250	$	250	$	750	$	750
Amortization of debt discount		5,126		4,784		15,060		14,054
Amortization of issuance costs		383		357		1,124		1,049
Total interest expense	$	5,759	$	5,391	$	16,934	$	15,853

0.25% Convertible Senior Notes Due 2022 as Liability Component [Member]

Debt Instrument [Line Items]

Schedule of Net Carrying Amount of Notes

The net carrying amount of the liability component of the 2022 Notes is as follows:

	As of September 30, 2019			As of December 31, 2018
	(in thousands)
Principal	$	400,000		$	400,000
Unamortized debt discount		(60,516	)		(75,575	)
Unamortized issuance costs		(4,518	)		(5,643	)
Net carrying amount	$	334,966		$	318,782

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Stock-Based Compensation Expense (Tables)

9 Months Ended

Sep. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Stock-Based Compensation Expense by Award Type

The following two tables show stock-based compensation expense by award type and where the stock-based compensation expense is recorded in the Company’s consolidated statements of operations:

	Three Months End September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Options	$	1,199	$	1,257	$	3,871	$	3,850
RSUs		21,406		17,583		66,227		49,624
Employee stock purchase plan		1,186		772		3,561		1,860
Total stock-based compensation expense	$	23,791	$	19,612	$	73,659	$	55,334

Effect of Stock-Based Compensation on Income by Line Item

Effect of stock-based compensation expense on income by line item:

	Three Months End September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Cost of revenue, subscription	$	854	$	391	$	2,291	$	985
Cost of revenue, professional services and other		614		803		2,298		2,339
Research and development		8,019		5,990		25,663		16,866
Sales and marketing		8,947		7,898		27,275		22,327
General and administrative		5,357		4,530		16,132		12,817
Total stock-based compensation expense	$	23,791	$	19,612	$	73,659	$	55,334

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Leases - Summary of Lease Assets and Liabilities (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Assets And Liabilities Lessee [Abstract]
Operating lease assets	$ 215,797
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OperatingLeaseRightOfUseAsset
Finance lease assets	$ 96
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentNet
Total leased assets	$ 215,893
Operating lease liabilities	$ 15,646
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OperatingLeaseLiabilityCurrent
Finance lease liabilities	$ 57
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	hubs:AccruedExpensesAndOtherCurrentLiabilities
Lease liabilities, net of current portion	$ 225,628
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OperatingLeaseLiabilityNoncurrent
Total lease liabilities	$ 241,331

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Capitalized Software Development Costs

9 Months Ended

Sep. 30, 2019

Research And Development [Abstract]

Capitalized Software Development Costs

8. Capitalized Software Development Costs

Capitalized software development costs, exclusive of those recorded within property and equipment, consisted of the following:

	September 30, 2019			December 31, 2018
	(in thousands)
Gross capitalized software development costs	$	56,794		$	46,169
Accumulated amortization		(41,699	)		(33,423	)
Capitalized software development costs, net	$	15,095		$	12,746

Capitalized software development costs are amortized on a straight-line basis over their estimated useful life of two years.

The following table summarizes software development costs capitalized, stock-based compensation included in capitalized software development costs, and amortization of capitalized software development costs.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Software development cost capitalized	$	4,388	$	3,439	$	10,625	$	9,960
Stock-based compensation included in capitalized software development costs	$	640	$	563	$	1,755	$	1,910
Amortization of capitalized software development costs	$	2,661	$	2,293	$	7,727	$	6,620

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Net Loss per Share

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Net Loss per Share

4. Net Loss per Share

Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding for the period. Diluted net loss per share is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period. For purposes of this calculation, options to purchase common stock, restricted stock units (“RSUs”), Employee Stock Purchase Plan (“ESPP”), common stock warrants, and the Conversion Option of the 2022 Notes are considered to be potential common stock equivalents.

A reconciliation of the denominator used in the calculation of basic and diluted net loss per share is as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
		2019			2018			2019			2018
Net loss	$	(14,987	)	$	(18,663	)	$	(43,444	)	$	(52,336	)
Weighted-average common shares    outstanding — basic		42,531			38,762			41,749			38,319
Dilutive effect of share equivalents resulting    from stock options, RSUs, ESPP,    common stock warrants and the Conversion    Option of the 2022 Notes		—			—			—			—
Weighted-average common shares,    outstanding — diluted		42,531			38,762			41,749			38,319
Net loss per share, basic and diluted	$	(0.35	)	$	(0.48	)	$	(1.04	)	$	(1.37	)

Additionally, since the Company incurred net losses for each of the periods presented, diluted net loss per share is the same as basic net loss per share. The Company’s outstanding stock options, RSUs, ESPP, common stock warrants, and Conversion Option of the 2022 Notes were not included in the calculation of diluted net loss per share as the effect would be anti-dilutive. The following table contains all potentially dilutive common stock equivalents.

	As of September 30,
		2019	2018
	(in thousands)
Options to purchase common shares		1,532	1,905
RSUs		1,688	2,020
Conversion option of the 2022 Notes		1,995	1,311
Common stock warrants		1,500	664
ESPP		8	29

The Company expects to settle the principal amount of the 2022 Notes (Note 9) in cash, and therefore, the Company uses the treasury stock method for calculating any potential dilutive effect of the Conversion Option on diluted net income per share, if applicable. The Conversion Option will have a dilutive impact on net income per share of common stock when the average market price of the Company’s common stock for a given period exceeds the conversion price of the 2022 Notes of $94.77 per share. Because the last reported sale price of the Company’s common stock for at least 20 trading days during the period of 30 consecutive trading days ending on the last trading day of the calendar quarter ended September 30, 2019 was equal to or greater than 130% of the applicable conversion price on each applicable trading day, the 2022 Notes are convertible at the option of the holders thereof during the calendar quarter ending December 31, 2019. As of November 1, 2019, the Company has received conversion notices for approximately $8 thousand of the principal balance of the 2022 Notes, which will be settled in cash during the quarter ended December 31, 2019.

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0.25% Convertible Senior Notes, Convertible Note Hedge and Warrant - Schedule of Net Carrying Amount of Liability Component (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Net carrying amount	$ 334,966	$ 318,782
0.25% Convertible Senior Notes Due 2022 as Liability Component [Member]
Debt Instrument [Line Items]
Principal	400,000	400,000
Unamortized debt discount	(60,516)	(75,575)
Unamortized issuance costs	(4,518)	(5,643)
Net carrying amount	$ 334,966	$ 318,782

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Capitalized Software Development Costs - Summary of Capitalized Software Development Costs, Exclusive of those Recorded within Property and Equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Capitalized Computer Software Net [Abstract]
Gross capitalized software development costs	$ 56,794	$ 46,169
Accumulated amortization	(41,699)	(33,423)
Capitalized software development costs, net	$ 15,095	$ 12,746

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Fair Value of Financial Instruments - Summary of Contractual Maturities of Short and Long Term Investments (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Amortized Cost Basis, Due within one year	$ 722,251	$ 481,071
Amortized Cost Basis, Due after 1 year through 2 years	59,555	11,466
Amortized Cost	781,806	492,537
Aggregate Fair Value, Due within one year	722,767	480,761
Aggregate Fair Value, Due after 1 year through 2 years	59,782	11,450
Aggregate Fair Value, Total	$ 782,549	$ 492,211

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Leases - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Lessee Lease Description [Line Items]
Right-of-use assets	$ 215,797	$ 215,797
Total assets	1,478,881	1,478,881	$ 833,953
Short-term lease liabilities	15,646	15,646
Accrued expenses and other current liabilities	25,706	25,706	22,305
Long-term lease liabilities	225,628	225,628
Deferred rent, net of current portion			26,445
Total liabilities	850,529	850,529	$ 589,312
Operating lease costs	9,000	23,400
Operating sublease income	600	1,700
Finance lease costs related to amortization finance lease assets	0	200
Finance lease interest expense	0	100
Cash payments related to operating lease liabilities	8,300	23,000
Cash payments related to financing lease liabilities	0	200
Adjustment [Member] | ASC Topic 842 [Member]
Lessee Lease Description [Line Items]
Right-of-use assets	152,200	152,200
Other assets	300	300
Total assets	151,900	151,900
Short-term lease liabilities	14,100	14,100
Accrued expenses and other current liabilities	500	500
Total current liabilities	13,500	13,500
Long-term lease liabilities	164,800	164,800
Deferred rent, net of current portion	26,400	26,400
Total liabilities	$ 151,900	$ 151,900

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Capitalized Software Development Costs (Tables)

9 Months Ended

Sep. 30, 2019

Research And Development [Abstract]

Summary of Capitalized Software Development Costs, Exclusive of those Recorded within Property and Equipment

Capitalized software development costs, exclusive of those recorded within property and equipment, consisted of the following:

	September 30, 2019			December 31, 2018
	(in thousands)
Gross capitalized software development costs	$	56,794		$	46,169
Accumulated amortization		(41,699	)		(33,423	)
Capitalized software development costs, net	$	15,095		$	12,746

Summary of Capitalized Software Development Costs Including Stock-Based Compensation and Amortization

The following table summarizes software development costs capitalized, stock-based compensation included in capitalized software development costs, and amortization of capitalized software development costs.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Software development cost capitalized	$	4,388	$	3,439	$	10,625	$	9,960
Stock-based compensation included in capitalized software development costs	$	640	$	563	$	1,755	$	1,910
Amortization of capitalized software development costs	$	2,661	$	2,293	$	7,727	$	6,620

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Changes in Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2019

Equity [Abstract]

Changes in Accumulated Other Comprehensive Loss

The following table summarizes the changes in accumulated other comprehensive loss, which is reported as a component of stockholders’ equity, for the nine months ended September 30, 2019.

	Cumulative Translation Adjustment			Unrealized Gain on Investments			Total
	(in thousands)
Beginning balance at January 1, 2019	$	(397	)	$	(326	)	$	(723	)
Other comprehensive loss before reclassifications		(997	)		811		$	(186	)
Amounts reclassified from accumulated other    comprehensive income		—			—			—
Ending balance at September 30, 2019	$	(1,394	)	$	485		$	(909	)

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0.25% Convertible Senior Notes, Convertible Note Hedge and Warrant

9 Months Ended

Sep. 30, 2019

Debt Disclosure [Abstract]

0.25% Convertible Senior Notes, Convertible Note Hedge and Warrant

9. 0.25% Convertible Senior Notes, Convertible Note Hedge and Warrant

In May 2017, the Company issued $350 million aggregate principal amount of 0.25% convertible senior notes due June 1, 2022 in a private offering and an additional $50 million aggregate principal amount of such notes pursuant to the exercise in full of the over-allotment options of the initial purchasers (the “2022 Notes”). The 2022 Notes are convertible at the option of the holders prior to the close of business on the business day immediately preceding February 1, 2022 under certain conditions or upon the occurrence of certain events. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of the Company’s common stock or a combination of cash and shares of the Company’s common stock, at the Company’s election. Because the last reported sale price of the Company’s common stock for at least 20 trading days during the period of 30 consecutive trading days ending on the last trading day of the calendar quarter ended September 30, 2019 was equal to or greater than 130% of the applicable conversion price on each applicable trading day, the 2022 Notes are convertible at the option of the holders thereof during the calendar quarter ending December 31, 2019. As of November 1, 2019, the Company has received conversion notices for approximately $8 thousand of the principal balance of the 2022 Notes, which will be settled in cash during the quarter ended December 31, 2019.

The net carrying amount of the liability component of the 2022 Notes is as follows:

	As of September 30, 2019			As of December 31, 2018
	(in thousands)
Principal	$	400,000		$	400,000
Unamortized debt discount		(60,516	)		(75,575	)
Unamortized issuance costs		(4,518	)		(5,643	)
Net carrying amount	$	334,966		$	318,782

Interest expense related to the 2022 Notes is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Contractual interest expense	$	250	$	250	$	750	$	750
Amortization of debt discount		5,126		4,784		15,060		14,054
Amortization of issuance costs		383		357		1,124		1,049
Total interest expense	$	5,759	$	5,391	$	16,934	$	15,853

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Fair Value of Financial Instruments

9 Months Ended

Sep. 30, 2019

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

5. Fair Value of Financial Instruments

The Company measures certain financial assets 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 — Quoted prices in active markets for identical assets or liabilities.

• 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 to the valuation methodology that are significant to the measurement of fair value of assets or liabilities.

The following table details the fair value measurements within the fair value hierarchy of the Company’s financial assets and liabilities at September 30, 2019 and December 31, 2018:

	September 30, 2019
	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents and investments:
Money market funds	$	115,376	$	—	$	—	$	115,376
Corporate bonds		—		83,426		—		83,426
U.S. Treasury securities		—		699,123		—		699,123
Restricted cash:
Certificates of deposit		—		5,569		—		5,569
Money market funds		—		1,955		—		1,955
Total	$	115,376	$	790,073	$	—	$	905,449

	December 31, 2018
	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents and investments:
Money market funds	$	1,579	$	—	$	—	$	1,579
Commercial paper		—		8,242		—		8,242
Corporate bonds		—		70,728		—		70,728
U.S. Treasury securities		—		413,241		—		413,241
Restricted cash:
Certificates of deposit		—		5,625		—		5,625
Total	$	1,579	$	497,836	$	—	$	499,415

The Company considers all highly liquid investments purchased with a remaining maturity of three months or less to be cash equivalents. The fair value of the Company’s investments in certain money market funds is their face value and such instruments are classified as Level 1 and are included in cash and cash equivalents on the consolidated balance sheets. At September 30, 2019 and December 31, 2018, our Level 2 securities were priced by pricing vendors. These pricing vendors utilize the most recent observable market information in pricing these securities or, if specific prices are not available for these securities, use other observable inputs like market transactions involving identical or comparable securities.

As of September 30, 2019 the fair value of the 2022 Notes was $659.4 million.  The fair value was determined based on the quoted price of the 2022 Notes in an inactive market on the last trading day of the reporting period and has been classified as Level 2 within the fair value hierarchy.

For certain other financial instruments, including accounts receivable, accounts payable, capital leases and other current liabilities, the carrying amounts approximate their fair value due to the relatively short maturity of these balances.

Strategic investments consist of non-controlling equity investments in privately held companies. The Company elected the measurement alternative for these investments without readily determinable fair values and for which the Company does not have the ability to exercise significant influence. These investments are accounted for under the cost method of accounting. Under the cost method of accounting, the non-marketable equity securities are carried at cost less any impairment, plus or minus adjustments resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer, which is recorded within the statement of operations. The Company holds $4.6 million without readily determinable fair values at September 30, 2019 and $4.0 million of investments without readily determinable fair values at December 31, 2018. These investments are included in other assets on the consolidated balance sheets. There have been no adjustments to the carrying value of strategic investments resulting from impairments or observable price changes.

The following tables summarize the composition of our short- and long-term investments at September 30, 2019 and December 31, 2018.

	September 30, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses			Aggregate Fair Value
	(in thousands)
Corporate bonds	$	83,174	$	269	$	(17	)	$	83,426
U.S. Treasury securities		698,632		491		—		$	699,123
Total	$	781,806	$	760	$	(17	)	$	782,549

	December 31, 2018
	Amortized Cost		Unrealized Gains		Unrealized Losses			Aggregate Fair Value
	(in thousands)
Commercial paper	$	8,256	$	—	$	(14	)	$	8,242
Corporate bonds		70,958		3		(233	)		70,728
U.S. Treasury securities		413,323		56		(138	)		413,241
Total	$	492,537	$	59	$	(385	)	$	492,211

For all of our securities for which the amortized cost basis was greater than the fair value at September 30, 2019, the Company has concluded that there is no plan to sell the security nor is it more likely than not that the Company would be required to sell the security before its anticipated recovery. In making the determination as to whether the unrealized loss is other-than-temporary, the Company considered the length of time and extent the investment has been in an unrealized loss position, the financial condition and near-term prospects of the issuers, the issuers’ credit rating and the time to maturity.

Contractual Maturities

The contractual maturities of short-term and long-term investments held at September 30, 2019 and December 31, 2018 are as follows:

	September 30, 2019				December 31, 2018
	Amortized Cost Basis		Aggregate Fair Value		Amortized Cost Basis		Aggregate Fair Value
	(in thousands)				(in thousands)
Due within one year	$	722,251	$	722,767	$	481,071	$	480,761
Due after 1 year through 2 years		59,555		59,782		11,466		11,450
Total	$	781,806	$	782,549	$	492,537	$	492,211

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Capitalized Software Development Costs - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2019
Capitalized Software Development Costs [Member]
Capitalized Computer Software [Line Items]
Property and equipment, estimated useful life	2 years

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Restricted Cash - Summary of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018
Cash And Cash Equivalents [Abstract]
Cash and cash equivalents	$ 225,770	$ 111,489	$ 96,122
Restricted cash	6,019	5,175	5,175
Restricted cash, included in other assets	$ 1,505	$ 450	$ 450
Restricted Cash, Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets	us-gaap:OtherAssets
Total cash, cash equivalents, and restricted cash	$ 233,294	$ 117,114	$ 101,747

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0.25% Convertible Senior Notes, Convertible Note Hedge and Warrant - Schedule of Interest Expense (Detail) - 0.25% Convertible Senior Notes Due 2022 [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	$ 250	$ 250	$ 750	$ 750
Amortization of debt discount	5,126	4,784	15,060	14,054
Amortization of issuance costs	383	357	1,124	1,049
Total interest expense	$ 5,759	$ 5,391	$ 16,934	$ 15,853

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Stock-Based Compensation Expense - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Software Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Capitalized software development costs excluded from stock based compensation	$ 640	$ 563	$ 1,755	$ 1,910

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Changes in Stockholders' Equity - Summary of Changes in Stockholders' Equity (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Stockholders Equity Note [Abstract]
Offering costs incurred			$ 365
Unrealized gain (loss) on investments, tax	$ (12)	$ 0	$ 269	$ 0

XML

Fair Value of Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other assets	$ 7,894	$ 6,888
Strategic Investments [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other assets	4,600	$ 4,000
2022 Notes [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Fair value of notes	$ 659,400

XML

Leases - Summary of Reconciliation between Non-cancelable Lease Commitments and Lease Liabilities (Detail) $ in Thousands	Sep. 30, 2019 USD ($)
Leases [Abstract]
Lease commitments, Operating leases	$ 357,756
Less: Legally binding minimum lease payments for leases signed but not yet commenced, Operating leases	(41,314)
Less: Present value discount, Operating leases	(75,168)
Total lease liabilities, Operating leases	241,274
Lease commitments, Finance leases	57
Total lease liabilities, finance leases	$ 57

XML

Net Loss per Share - Summary of Reconciliation of Denominator Used in Calculation of Basic and Diluted Net Loss Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share Basic And Diluted [Abstract]
Net loss	$ (14,987)	$ (18,663)	$ (28,457)	$ (33,673)	$ (43,444)	$ (52,336)
Weighted-average common shares outstanding — basic	42,531	38,762			41,749	38,319
Weighted-average common shares, outstanding — diluted	42,531	38,762			41,749	38,319
Net loss per share, basic and diluted	$ (0.35)	$ (0.48)			$ (1.04)	$ (1.37)

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Leases (Tables)

9 Months Ended

Sep. 30, 2019

Leases [Abstract]

Summary of Lease Assets and Liabilities

The following table provides a summary of lease assets and liabilities as of September 30, 2019:

Leases	Balance sheet classification	Amount (in thousands)
Assets:
Operating lease assets	Right-of-use assets	$	215,797
Finance lease assets	Fixed assets		96
Total leased assets		$	215,893
Liabilities:
Current
Operating lease liabilities	Lease liabilities	$	15,646
Finance lease liabilities	Accrued expenses and other current liabilities		57
Noncurrent
Operating	Lease liabilities, net of current portion		225,628
Total lease liabilities		$	241,331

Summary of Reconciliation between Non-cancelable Lease Commitments and Lease Liabilities

The following table provides a reconciliation between non-cancelable lease commitments and lease liabilities as of September 30, 2019:

	Operating leases			Finance Leases
Lease commitments (Note 10)	$	357,756		$	57
Less: Legally binding minimum lease payments for    leases signed but not yet commenced		(41,314	)		—
Less: Present value discount		(75,168	)		—
Total lease liabilities	$	241,274		$	57

Summary of Weighted Average Remaining Lease Terms and Weighted Average Discount Rate for Operating and Finance Leases

The following table provides weighted average remaining lease terms and weighted average discount rate for operating and finance leases as of September 30, 2019:

Weighted-average remaining lease term:
Operating leases	9.5 years
Finance leases	0.5 years
Weighted-average discount rate:
Operating leases	5.8%
Finance leases	3.8%

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Stock-Based Compensation Expense

9 Months Ended

Sep. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation Expense

13. Stock-Based Compensation Expense

The following two tables show stock-based compensation expense by award type and where the stock-based compensation expense is recorded in the Company’s consolidated statements of operations:

	Three Months End September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Options	$	1,199	$	1,257	$	3,871	$	3,850
RSUs		21,406		17,583		66,227		49,624
Employee stock purchase plan		1,186		772		3,561		1,860
Total stock-based compensation expense	$	23,791	$	19,612	$	73,659	$	55,334

Effect of stock-based compensation expense on income by line item:

	Three Months End September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(in thousands)				(in thousands)
Cost of revenue, subscription	$	854	$	391	$	2,291	$	985
Cost of revenue, professional services and other		614		803		2,298		2,339
Research and development		8,019		5,990		25,663		16,866
Sales and marketing		8,947		7,898		27,275		22,327
General and administrative		5,357		4,530		16,132		12,817
Total stock-based compensation expense	$	23,791	$	19,612	$	73,659	$	55,334

Capitalized software development costs excluded from stock-based compensation expense is $640 thousand for the three months ended September 30, 2019, $1.8 million for the nine months ended September 30, 2019, $563 thousand for the three months ended September 30, 2018, and $1.9 million for the nine months ended September 30, 2018.

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Property and Equipment, Net (Tables)

9 Months Ended

Sep. 30, 2019

Property Plant And Equipment [Abstract]

Schedule of Property and Equipment, Net

Property and equipment, net consists of the following:

	September 30, 2019			December 31, 2018
	(in thousands)
Computer equipment and purchased software	$	9,747		$	8,163
Employee computer equipment		12,304			8,972
Furniture and fixtures		14,053			13,019
Office equipment		2,551			2,551
Leasehold improvements		50,932			42,894
Equipment under capital lease		3,450			3,450
Internal-use software		6,931			5,363
Construction in progress		8,879			2,498
Total property and equipment		108,847			86,910
Less accumulated depreciation and amortization		(44,888	)		(34,442	)
Property and equipment, net	$	63,959		$	52,468

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Organization and Operations

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Organization and Operations

1. Organization and Operations

HubSpot, Inc. (the “Company”) provides a cloud-based inbound marketing, sales and customer service platform, which is referred to in this document as the Company’s Growth Platform, that enables businesses to grow better. The Company’s Growth Platform, comprised of Marketing Hub, Sales Hub, Service Hub, and a free customer relationship management, or CRM system, features integrated applications and tools that enable businesses to create a cohesive and adaptable customer experience throughout the customer lifecycle.

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) applicable to interim periods, under the rules and regulations of the United States Securities and Exchange Commission (“SEC”). In the opinion of management, the Company has prepared the accompanying unaudited consolidated financial statements on a basis substantially consistent with the audited consolidated financial statements of the Company as of and for the year ended December 31, 2018, and these consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of the results of the interim periods presented. All intercompany balances and transactions have been eliminated in consolidation.   

The results of operations for the interim periods presented are not necessarily indicative of the results to be expected for any subsequent quarter or for the entire year ending December 31, 2019. The year-end balance sheet data was derived from audited financial statements, but this Form 10-Q does not include all disclosures required under GAAP. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been omitted under the rules and regulations of the SEC.

These interim financial statements should be read in conjunction with the audited consolidated financial statements and related notes contained in the Company’s Annual Report on Form 10-K filed with the SEC on February 12, 2019. There have been no changes in the Company’s significant accounting policies from those that were disclosed in the Company’s Annual Report on Form 10-K that have had a material impact on our consolidated financial statements and related notes, except the adoption of updated guidance related to accounting for leases as described within Note 2 of these consolidated financial statements.

On February 19, 2019, the Company closed a common stock offering whereby 2.2 million shares of common stock were sold. The Company received aggregate proceeds of approximately $343.0 million from the offering, net of underwriters’ discounts and commissions, but before deduction of offering expenses of approximately $0.4 million.

Recent Accounting Pronouncements

Recent accounting standards not included below are not expected to have a material impact on our consolidated financial position and results of operations.

In June 2018, the Financial Accounting Standards Board (“FASB”) issued guidance for stock-based compensation to include share-based payment transactions for acquiring goods and services from nonemployees. The guidance was adopted on January 1, 2019 and did not have a material impact on the consolidated financial statements.

In January 2017, the FASB issued guidance simplifying the accounting for goodwill impairment by removing Step 2 of the goodwill impairment test. Under current guidance, Step 2 of the goodwill impairment test requires entities to calculate the implied fair value of goodwill in the same manner as the amount of goodwill recognized in a business combination by assigning the fair value of a reporting unit to all of the assets and liabilities of the reporting unit. The carrying value in excess of the implied fair value is recognized as goodwill impairment. Under the new standard, goodwill impairment is recognized based on Step 1 of the current guidance, which calculates the carrying value in excess of the reporting unit’s fair value. The new standard is effective beginning in January 2020, with early adoption permitted. The Company does not believe the adoption of this guidance will have a material impact on the consolidated financial statements.

In June 2016, the FASB issued guidance that introduces a new methodology for accounting for credit losses on financial instruments. The guidance establishes a new forward-looking "expected loss model" that requires entities to estimate current expected credit losses on accounts receivable and financial instruments by using all practical and relevant information. The guidance will be effective for the Company on January 1, 2020. Adoption of the standard will be applied using a modified retrospective approach through a cumulative-effect adjustment to retained earnings as of the effective date. The Company does not believe the adoption of this guidance will have a material impact on the consolidated financial statements.

In February 2016, the FASB issued guidance related to leases to increase transparency and comparability among organizations by requiring the recognition of right-of-use assets and lease liabilities on the balance sheet, while maintaining consistency with historical accounting for the recognition of expense on their income statements. Most prominent among the changes in the guidance is the recognition of right-of-use assets and lease liabilities by lessees for those leases classified as operating leases. Additional disclosures are required to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases.  The Company adopted the updated guidance as of January 1, 2019 using a modified retrospective transition method with a cumulative-effect adjustment as of the adoption date, as permitted by the guidance. Comparative periods are not adjusted.  See Note 2 of these consolidated financial statements for further details.

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Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (14,987)	$ (18,663)	$ (43,444)	$ (52,336)
Other comprehensive loss:
Foreign currency translation adjustment	(947)	(127)	(997)	(548)
Changes in unrealized gain (loss) on investments, net of income taxes of $(12) thousand and $257 thousand for the three and nine months ended September 30, 2019, respectively, and $0 for the three and nine months ended September 30, 2018.	(203)	72	811	(164)
Comprehensive loss	$ (16,137)	$ (18,718)	$ (43,630)	$ (53,048)

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Nov. 01, 2019
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Trading Symbol	HUBS
Entity Registrant Name	HUBSPOT INC
Entity Central Index Key	0001404655
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		42,821,424
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Title of 12(b) Security	Common Stock
Security Exchange Name	NYSE
Entity File Number	001-36680
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-2632791
Entity Address, Address Line One	25 First Street
Entity Address, City or Town	Cambridge
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02141
City Area Code	888
Local Phone Number	482-7768
Document Quarterly Report	true
Document Transition Report	false

XML

Changes in Stockholders' Equity

9 Months Ended

Sep. 30, 2019

Stockholders Equity Note [Abstract]

Changes in Stockholders' Equity

11. Changes in Stockholders’ Equity

The following tables summarize the changes in stockholders’ equity for the nine months ended September 30, 2019 and 2018.

	Common Stock, $0.001 Par Value				Additional Paid-In		Accumulated Other Comprehensive			Accumulated
	Shares		Amount		Capital		Loss			Deficit			Total
Balances at December 31, 2018		39,300	$	40	$	589,708	$	(723	)	$	(344,384	)	$	244,641
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		825		1		7,756		—			—			7,757
Issuance of common stock in relation to    common stock offering, net of offering costs    incurred $365		2,151		2		342,628		—			—			342,630
Stock-based compensation		—		—		50,609					—			50,609
Cumulative translation adjustment		—		—		—		(50	)		—			(50	)
Unrealized gain on investments, net of income    taxes of $269		—		—		—		1,014			—			1,014
Net loss		—		—		—		—			(28,457	)		(28,457	)
Balances at June 30, 2019		42,276	$	43	$	990,701	$	241		$	(372,841	)	$	618,144
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		363	$	—	$	2,184	$	—		$	—		$	2,184
Stock-based compensation		—		—		24,161		—			—			24,161
Cumulative translation adjustment		—		—		—		(947	)		—			(947	)
Unrealized loss on investments, net of income    taxes of $(12)		—		—		—		(203	)		—			(203	)
Net loss		—		—		—		—			(14,987	)		(14,987	)
Balances at September 30, 2019		42,639	$	43	$	1,017,046	$	(909	)	$	(387,828	)	$	628,352

	Common Stock, $0.001 Par Value				Additional Paid-In		Accumulated Other Comprehensive			Accumulated
	Shares		Amount		Capital		Loss			Deficit			Total
Balances at December 31, 2017		37,503	$	38	$	496,461	$	(57	)	$	(286,082	)	$	210,360
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		1,030		1		9,015		—			—			9,016
Stock-based compensation		—		—		37,067		—			—			37,067
Cumulative adjustment from adoption of    revenue recognition standard		—		—		—		—			5,526			5,526
Cumulative translation adjustment		—		—		—		(422	)		—			(422	)
Unrealized loss on investments, net of income    taxes of $0		—		—		—		(235	)		—			(235	)
Net loss		—		—		—		—			(33,673	)		(33,673	)
Balances at June 30, 2018		38,533	$	39	$	542,543	$	(714	)	$	(314,229	)	$	227,639
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		374	$	1	$	358	$	—		$	—		$	359
Stock-based compensation		—		—		20,133		—			—			20,133
Cumulative translation adjustment		—		—		—		(126	)		—			(126	)
Unrealized gain on investments, net of income    taxes of $0		—		—		—		71			—			71
Net loss		—		—		—		—			(18,663	)		(18,663	)
Balances at September 30, 2018		38,907	$	40	$	563,034	$	(769	)	$	(332,892	)	$	229,413

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Property and Equipment, Net

9 Months Ended

Sep. 30, 2019

Property Plant And Equipment [Abstract]

Property and Equipment, Net

7. Property and Equipment, Net

Property and equipment, net consists of the following:

	September 30, 2019			December 31, 2018
	(in thousands)
Computer equipment and purchased software	$	9,747		$	8,163
Employee computer equipment		12,304			8,972
Furniture and fixtures		14,053			13,019
Office equipment		2,551			2,551
Leasehold improvements		50,932			42,894
Equipment under capital lease		3,450			3,450
Internal-use software		6,931			5,363
Construction in progress		8,879			2,498
Total property and equipment		108,847			86,910
Less accumulated depreciation and amortization		(44,888	)		(34,442	)
Property and equipment, net	$	63,959		$	52,468

Depreciation and amortization expense on property and equipment was $3.8 million for the three months ended September 30, 2019, $11.2 million for the nine months ended September 30, 2019, $3.2 million for the three months ended September 30, 2018 and $9.3 million for the nine months ended September 30, 2018.  

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Revenues

9 Months Ended

Sep. 30, 2019

Revenue From Contract With Customer [Abstract]

Revenues

3. Revenues

Disaggregation of Revenue

The Company provides disaggregation of revenue based on geographic region (Note 14) and based on the subscription versus professional services and other classification on the consolidated statements of operations as it believes these best depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors.

Deferred Revenue, Deferred Commission Expense, and Accrued Expenses and Other Current Liabilities

Amounts that have been invoiced are recorded in accounts receivable and deferred revenue or revenue, depending on whether the revenue recognition criteria have been met. Deferred revenue represents amounts billed for which revenue has not yet been recognized. Deferred revenue that will be recognized during the succeeding 12-month period is recorded as current deferred revenue, and the remaining portion is recorded as long-term deferred revenue.  Deferred revenue during the nine months ended September 30, 2019 increased by $18.1 million resulting from $506.8 million of additional invoicing and was offset by revenue recognized of $488.7 million during the same period. $105.1 million of revenue was recognized during the three month period ended September 30, 2019 that was included in deferred revenue at the beginning of the period. $163.2 million of revenue was recognized during the nine month period ended September 30, 2019 that was included in deferred revenue at the beginning of the period. As of September 30, 2019, approximately $153.5 million of revenue is expected to be recognized from remaining performance obligations for contracts with original performance obligations that exceed one year.  The Company expects to recognize revenue on approximately 94.3% of these remaining performance obligations over the next 24 months, with the balance recognized thereafter.  

Additional contract liabilities of $1.4 million and $1.6 million were included in accrued expenses and other current liabilities on the consolidated balance sheet as of September 30, 2019 and December 31, 2018.

The incremental direct costs of obtaining a contract, which primarily consist of sales commissions paid for new subscription contracts, are deferred and amortized on a straight-line basis over a period of approximately one to three years.  The one to three-year period has been determined by taking into consideration the type of product sold, the commitment term of the customer contract, the nature of the Company’s technology development life-cycle, and an estimated customer relationship period.  Sales commissions for upgrade contracts are deferred and amortized on a straight-line basis over the remaining estimated customer relationship period of the related customer.  Deferred commission expense that will be recorded as expense during the succeeding 12-month period is recorded as current deferred commission expense, and the remaining portion is recorded as long-term deferred commission expense. Deferred commission expense during the three months ended September 30, 2019 decreased by $0.6 million as a result of deferring incremental costs of obtaining a contract of $8.5 million and was offset by amortization of $9.1 million during the same period. Deferred commission expense during the nine months ended September 30, 2019 increased by $4.9 million as a result of deferring incremental costs of obtaining a contract of $28.8 million and was offset by amortization of $23.9 million during the same period.  

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2019

Commitments And Contingencies Disclosure [Abstract]

Schedule of Future Minimum Payments

Future minimum payments under all operating and finance lease agreements as of September 30, 2019 are as follows:

	Operating		Finance
	(in thousands)
2019	$	7,326		57
2020		36,782		—
2021		39,957		—
2022		39,875		—
2023		39,542		—
Thereafter		194,274		—
Total	$	357,756		57
Less: Portion representing interest				—
Capital lease obligation				57

As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting standard, ASC 840, Leases, the future minimum payments under all operating and finance lease agreements as of December 31, 2018 are as follows:

	Operating		Finance
	(in thousands)
2019	$	27,755	$	298
2020		33,769		33
2021		35,414		—
2022		35,314		—
2023		35,686		—
Thereafter		184,341		—
Total	$	352,279		331
Less: Portion representing interest				(20	)
Capital lease obligation			$	311

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Segment Information and Geographic Data (Tables)

9 Months Ended

Sep. 30, 2019

Segment Reporting [Abstract]

Revenues by Geographical Region

Revenues by geographical region:

	Three Months End September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Americas	$	116,841		$	92,388		$	332,311		$	261,034
Europe		43,749			30,382			120,708			83,763
Asia Pacific		13,031			9,056			35,655			24,161
Total	$	173,621		$	131,826		$	488,674		$	368,958
Percentage of revenues generated outside    of the Americas		33	%		30	%		32	%		29	%

Long Lived Assets by Geographical Region

Total long-lived assets by geographical region:

	As of September 30, 2019			As of  December 31, 2018
Americas	$	37,702		$	35,186
Europe		22,603			13,913
Asia Pacific		3,654			3,369
Total long-lived assets	$	63,959		$	52,468
Percentage of long-lived assets held outside of the    Americas		41	%		33	%

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0.25% Convertible Senior Notes, Convertible Note Hedge and Warrant - Additional Information (Detail) - 0.25% Convertible Senior Notes Due 2022 [Member]	1 Months Ended	9 Months Ended
	May 31, 2017 USD ($) d	Sep. 30, 2019	Nov. 01, 2019 USD ($)
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	0.25%
Debt instrument, maturity date		Jun. 01, 2022
Debt instrument, convertible, threshold trading days | d	20
Debt instrument, convertible, threshold consecutive trading days | d	30
Percentage of closing price to trigger debt conversion	130.00%
Private Offering [Member]
Debt Instrument [Line Items]
Principal amount of long term debt	$ 350,000,000
Over-Allotment Options [Member]
Debt Instrument [Line Items]
Principal amount of long term debt	$ 50,000,000
Subsequent Event [Member]
Debt Instrument [Line Items]
Debt instrument convertible, principal amount			$ 8,000

XML

Property and Equipment, Net - Additional Information (Detail) - 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 [Abstract]
Depreciation and amortization	$ 3.8	$ 3.2	$ 11.2	$ 9.3

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Segment Information and Geographic Data - Long Lived Assets by Geographical Region (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total long lived assets	$ 63,959	$ 52,468
Americas [Member]
Segment Reporting Information [Line Items]
Total long lived assets	37,702	35,186
Europe [Member]
Segment Reporting Information [Line Items]
Total long lived assets	22,603	13,913
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Total long lived assets	$ 3,654	$ 3,369
Outside Of Americas [Member] | Assets Total [Member] | Geographic Concentration Risk [Member]
Segment Reporting Information [Line Items]
Percentage of long lived assets held outside of the Americas	41.00%	33.00%

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Revenues - Additional Information (Detail) - USD ($) $ in Thousands	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]
Additions in deferred revenue			$ 18,100
Additional Invoicing			506,800
Total revenues	$ 173,621	$ 131,826	488,674	$ 368,958
Deferred revenue, revenue recognized	105,100		163,200
Revenue remaining performance obligation, contracts exceeds one year	153,500		$ 153,500
Revenue remaining performance obligation contract period			1 year
Revenue remaining performance obligation percentage recognized			94.30%
Short-term deferred revenue	200,771		$ 200,771		$ 183,305
Increase (decrease) in deferred commission expense	(600)		4,900
Incremental costs of deferred sales commission expense	8,500		28,800
Amortization of deferred commission expense	9,100		$ 23,900
Minimum [Member]
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Amortization period of deferred commissions			1 year
Maximum [Member]
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Amortization period of deferred commissions			3 years
Accrued Expenses and Other Current Liabilities [Member]
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Short-term deferred revenue	$ 1,400		$ 1,400		$ 1,600

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Net Loss per Share - Additional Information (Detail) - 0.25% Convertible Senior Notes Due 2022 as Liability Component [Member] $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2019 d $ / shares	Nov. 01, 2019 USD ($)
Earnings Per Share Basic [Line Items]
Common stock conversion price | $ / shares	$ 94.77
Debt instrument, convertible, threshold trading days	20
Debt instrument, convertible, threshold consecutive trading days	30
Percentage of closing price to trigger debt conversion	130.00%
Subsequent Event [Member]
Earnings Per Share Basic [Line Items]
Debt instrument convertible, principal amount | $		$ 8

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Segment Information and Geographic Data - Revenues by Geographical Region (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Total revenues	$ 173,621	$ 131,826	$ 488,674	$ 368,958
Americas [Member]
Segment Reporting Information [Line Items]
Total revenues	116,841	92,388	332,311	261,034
Europe [Member]
Segment Reporting Information [Line Items]
Total revenues	43,749	30,382	120,708	83,763
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 13,031	$ 9,056	$ 35,655	$ 24,161
Revenue [Member] | Outside Of Americas [Member] | Geographic Concentration Risk [Member]
Segment Reporting Information [Line Items]
Percentage of revenues generated outside of the Americas	33.00%	30.00%	32.00%	29.00%

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Stock-Based Compensation Expense - Schedule of Stock-Based Compensation Expense by Award Type (Detail) - 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, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 23,791	$ 19,612	$ 73,659	$ 55,334
Common Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	1,199	1,257	3,871	3,850
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	21,406	17,583	66,227	49,624
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 1,186	$ 772	$ 3,561	$ 1,860

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Commitments and Contingencies - Schedule of Future Minimum Payments (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Commitments And Contingencies Disclosure [Abstract]
Operating, 2019	$ 7,326
Operating, 2020	36,782
Operating, 2021	39,957
Operating, 2022	39,875
Operating, 2023	39,542
Operating, Thereafter	194,274
Lease commitments, Operating leases	357,756
Finance, 2019	57
Lease commitments, Finance leases	57
Capital lease obligation	$ 57
Operating, 2019		$ 27,755
Operating, 2020		33,769
Operating, 2021		35,414
Operating, 2022		35,314
Operating, 2023		35,686
Operating, Thereafter		184,341
Operating, Total		352,279
Finance, 2019		298
Finance, 2020		33
Finance, Total		331
Less: Portion representing interest		(20)
Capital lease obligation		$ 311

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating Activities:
Net loss	$ (43,444)	$ (52,336)
Adjustments to reconcile net loss to net cash and cash equivalents provided by operating activities
Depreciation and amortization	21,248	16,539
Stock-based compensation	73,659	55,334
Provision for deferred income taxes	49	43
Amortization of debt discount and issuance costs	16,184	15,103
Accretion of bond discount	(10,889)	(4,517)
Noncash lease expense		1,972
Unrealized currency translation	(193)	215
Changes in assets and liabilities
Accounts receivable	(1,346)	(3,266)
Prepaid expenses and other assets	(6,217)	823
Deferred commission expense	(5,551)	(15,887)
Right-of-use assets	14,310
Accounts payable	6,195	4,262
Accrued expenses and other liabilities	955	3,755
Lease liabilities	(14,788)
Deferred rent		3,987
Deferred revenue	20,910	25,713
Net cash and cash equivalents provided by operating activities	71,082	51,740
Investing Activities:
Purchases of investments	(967,994)	(524,838)
Maturities of investments	689,614	498,850
Purchases of property and equipment	(21,197)	(16,688)
Capitalization of software development costs	(9,139)	(8,726)
Purchases of strategic investments	(553)	(300)
Net cash and cash equivalents used in investing activities	(309,269)	(51,702)
Financing Activities:
Proceeds from common stock offering, net of offering costs paid of $365	342,628
Employee taxes paid related to the net share settlement of stock-based awards	(4,767)	(5,933)
Proceeds related to the issuance of common stock under stock plans	18,926	16,769
Repayments of finance lease obligations	(249)	(592)
Net cash and cash equivalents provided by financing activities	356,538	10,244
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(2,171)	(1,319)
Net increase in cash, cash equivalents and restricted cash	116,180	8,963
Cash, cash equivalents and restricted cash, beginning of period	117,114	92,784
Cash, cash equivalents and restricted cash, end of period	233,294	101,747
Supplemental cash flow disclosure:
Cash paid for interest	503	527
Cash paid for income taxes	2,395	1,016
Right of use assets obtained in exchange for operating lease liabilities	81,744
Non-cash investing and financing activities:
Capital expenditures incurred but not yet paid	1,871	2,018
Asset retirement obligations	$ 1,106	$ 347

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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Statement Of Financial Position [Abstract]
Accounts receivable, net of allowance for doubtful accounts	$ 1,258	$ 1,317

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Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2019

Fair Value Disclosures [Abstract]

Schedule of Fair Value Measurements of Financial Assets and Liabilities

The following table details the fair value measurements within the fair value hierarchy of the Company’s financial assets and liabilities at September 30, 2019 and December 31, 2018:

	September 30, 2019
	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents and investments:
Money market funds	$	115,376	$	—	$	—	$	115,376
Corporate bonds		—		83,426		—		83,426
U.S. Treasury securities		—		699,123		—		699,123
Restricted cash:
Certificates of deposit		—		5,569		—		5,569
Money market funds		—		1,955		—		1,955
Total	$	115,376	$	790,073	$	—	$	905,449

	December 31, 2018
	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents and investments:
Money market funds	$	1,579	$	—	$	—	$	1,579
Commercial paper		—		8,242		—		8,242
Corporate bonds		—		70,728		—		70,728
U.S. Treasury securities		—		413,241		—		413,241
Restricted cash:
Certificates of deposit		—		5,625		—		5,625
Total	$	1,579	$	497,836	$	—	$	499,415

Summary of Composition of Short and Long Term Investments

The following tables summarize the composition of our short- and long-term investments at September 30, 2019 and December 31, 2018.

	September 30, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses			Aggregate Fair Value
	(in thousands)
Corporate bonds	$	83,174	$	269	$	(17	)	$	83,426
U.S. Treasury securities		698,632		491		—		$	699,123
Total	$	781,806	$	760	$	(17	)	$	782,549

	December 31, 2018
	Amortized Cost		Unrealized Gains		Unrealized Losses			Aggregate Fair Value
	(in thousands)
Commercial paper	$	8,256	$	—	$	(14	)	$	8,242
Corporate bonds		70,958		3		(233	)		70,728
U.S. Treasury securities		413,323		56		(138	)		413,241
Total	$	492,537	$	59	$	(385	)	$	492,211

Summary of Contractual Maturities of Short and Long Term Investments

The contractual maturities of short-term and long-term investments held at September 30, 2019 and December 31, 2018 are as follows:

	September 30, 2019				December 31, 2018
	Amortized Cost Basis		Aggregate Fair Value		Amortized Cost Basis		Aggregate Fair Value
	(in thousands)				(in thousands)
Due within one year	$	722,251	$	722,767	$	481,071	$	480,761
Due after 1 year through 2 years		59,555		59,782		11,466		11,450
Total	$	781,806	$	782,549	$	492,537	$	492,211

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Subsequent Event

9 Months Ended

Sep. 30, 2019

Subsequent Events [Abstract]

Subsequent Event

15. Subsequent Event

On October 31, 2019 the Company acquired 100% of the outstanding equity securities of PieSync NV, a limited liability company formed under Belgian law ("PieSync"), for approximately $26.5 million.  PieSync provides a customer data sync platform, enabling bi-directional syncs between business applications.

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Revenues - Additional Information1 (Detail)	Sep. 30, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-10-01
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Revenue remaining performance obligations recognition period	24 months

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Fair Value of Financial Instruments - Schedule of Fair Value of Financial Assets and Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	$ 782,549	$ 492,211
Fair value of financial assets	905,449	499,415
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of financial assets	115,376	1,579
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of financial assets	790,073	497,836
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cash and cash equivalents	115,376	1,579
Fair value of restricted cash	1,955
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of cash and cash equivalents	115,376	1,579
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of restricted cash	1,955
Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments		8,242
Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments		8,242
Corporate Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	83,426	70,728
Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	83,426	70,728
US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	699,123	413,241
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of short and long term investments	699,123	413,241
Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of restricted cash	5,569	5,625
Certificates of Deposit [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of restricted cash	$ 5,569	$ 5,625

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Changes in Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance, Amount	$ 244,641
Other comprehensive loss before reclassifications	(186)
Ending Balance, Amount	628,352
Cumulative Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance, Amount	(397)
Other comprehensive loss before reclassifications	(997)
Ending Balance, Amount	(1,394)
Unrealized Gain on Investments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance, Amount	(326)
Other comprehensive loss before reclassifications	811
Ending Balance, Amount	485
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance, Amount	(723)
Ending Balance, Amount	$ (909)

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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended		9 Months Ended
	Oct. 31, 2019	Mar. 31, 2019	Sep. 30, 2019
Operating And Capital Leased Assets [Line Items]
Improvement reimbursements from landlords			$ 13,800
Increase in future lease commitments			80,200
Lease operating lease commitments that have not yet commenced			41,314
Rent payable			$ 357,756
Agreement maturity period		2023-06
Renewal Agreement [Member] | Web Hosting Vendor [Member]
Operating And Capital Leased Assets [Line Items]
Lessee, operating lease, existence of option to extend		true
Description of option to extend lease facility			In March 2019, the Company exercised an option to extend an agreement with a technology vendor for an additional two years through June 2023.
Extended renewal agreement term		2 years
Contractual obligation over additional two years		$ 57,000
Lease Commencement, on or Near June 1, 2020 [Member] | Subsequent Event [Member]
Operating And Capital Leased Assets [Line Items]
Lease commencement date	2020-06
Rent payable	$ 29,100
United States [Member]
Operating And Capital Leased Assets [Line Items]
Lease operating lease commitments that have not yet commenced			$ 41,300
Operating lease term			10 years
Singapore [Member]
Operating And Capital Leased Assets [Line Items]
Lease operating lease commitments that have not yet commenced			$ 41,300
Operating lease term			4 years
Columbia [Member]
Operating And Capital Leased Assets [Line Items]
Lease operating lease commitments that have not yet commenced			$ 41,300
Operating lease term			1 year
Germany [Member] | Lease Commencement, on or Near June 1, 2020 [Member] | Subsequent Event [Member]
Operating And Capital Leased Assets [Line Items]
Operating lease term	10 years

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Segment Information and Geographic Data - Additional Information (Detail) - Segment	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Number of operating segment			1
Revenue [Member] | Outside Of United States [Member] | Geographic Concentration Risk [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	40.00%	38.00%	40.00%	37.00%

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Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Changes in unrealized gain (loss) on investments, income taxes	$ (12)	$ 0	$ 257	$ 0

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 225,770	$ 111,489
Short-term investments	722,767	480,761
Accounts receivable — net of allowance for doubtful accounts of $1,258 and $1,317 at September 30, 2019 and December 31, 2018, respectively	77,551	77,100
Deferred commission expense	29,080	23,664
Restricted cash	6,019	5,175
Prepaid expenses and other current assets	20,052	14,229
Total current assets	1,081,239	712,418
Long-term investments	59,783	11,450
Property and equipment, net	63,959	52,468
Capitalized software development costs, net	15,095	12,746
Right-of-use assets	215,797
Deferred commission expense, net of current portion	17,608	18,114
Other assets	7,894	6,888
Intangible assets, net	2,556	4,919
Goodwill	14,950	14,950
Total assets	1,478,881	833,953
Current liabilities:
Accounts payable	14,882	7,810
Accrued compensation costs	23,913	23,589
Accrued expenses and other current liabilities	25,706	22,305
Lease liabilities	15,646
Deferred revenue	200,771	183,305
Total current liabilities	280,918	237,009
Lease liabilities, net of current portion	225,628
Deferred rent, net of current portion		26,445
Deferred revenue, net of current portion	2,835	2,179
Other long-term liabilities	6,182	4,897
Convertible senior notes	334,966	318,782
Total liabilities	850,529	589,312
Commitments and contingencies (Note 10)
Stockholders’ equity:
Common stock	43	40
Additional paid-in capital	1,017,046	589,708
Accumulated other comprehensive loss	(909)	(723)
Accumulated deficit	(387,828)	(344,384)
Total stockholders’ equity	628,352	244,641
Total liabilities and stockholders’ equity	$ 1,478,881	$ 833,953

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Net Loss per Share (Tables)

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Summary of Reconciliation of Denominator Used in Calculation of Basic and Diluted Net Loss Per Share

A reconciliation of the denominator used in the calculation of basic and diluted net loss per share is as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
		2019			2018			2019			2018
Net loss	$	(14,987	)	$	(18,663	)	$	(43,444	)	$	(52,336	)
Weighted-average common shares    outstanding — basic		42,531			38,762			41,749			38,319
Dilutive effect of share equivalents resulting    from stock options, RSUs, ESPP,    common stock warrants and the Conversion    Option of the 2022 Notes		—			—			—			—
Weighted-average common shares,    outstanding — diluted		42,531			38,762			41,749			38,319
Net loss per share, basic and diluted	$	(0.35	)	$	(0.48	)	$	(1.04	)	$	(1.37	)

Schedule of Potentially Dilutive Common Stock Equivalents

The following table contains all potentially dilutive common stock equivalents.

	As of September 30,
		2019	2018
	(in thousands)
Options to purchase common shares		1,532	1,905
RSUs		1,688	2,020
Conversion option of the 2022 Notes		1,995	1,311
Common stock warrants		1,500	664
ESPP		8	29

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Segment Information and Geographic Data

9 Months Ended

Sep. 30, 2019

Segment Reporting [Abstract]

Segment Information and Geographic Data

14. Segment Information and Geographic Data

The Company operates as one operating segment. Operating segments are defined as components of an enterprise for which separate financial information is regularly evaluated by the chief operating decision makers (“CODMs”), which are the Company’s chief executive officer and chief operating officer, in deciding how to allocate resources and assess performance. The Company’s CODMs evaluate the Company’s financial information and resources and assess the performance of these resources on a consolidated basis. Since the Company operates in one operating segment, all required financial segment information can be found in the consolidated financial statements. Revenue and long-lived assets by geographic region, based on the physical location of the operations recording the sale or the asset, are as follows:

Revenues by geographical region:

	Three Months End September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Americas	$	116,841		$	92,388		$	332,311		$	261,034
Europe		43,749			30,382			120,708			83,763
Asia Pacific		13,031			9,056			35,655			24,161
Total	$	173,621		$	131,826		$	488,674		$	368,958
Percentage of revenues generated outside    of the Americas		33	%		30	%		32	%		29	%

Revenue derived from customers outside the United States (international) was approximately 40% of total revenue in the three and nine months ended September 30, 2019. Revenue derived from customers outside the United States (international) was approximately 38% of total revenue in the three months ended September 30, 2018 and 37% of total revenue in the nine months ended September 30, 2018.

Total long-lived assets by geographical region:

	As of September 30, 2019			As of  December 31, 2018
Americas	$	37,702		$	35,186
Europe		22,603			13,913
Asia Pacific		3,654			3,369
Total long-lived assets	$	63,959		$	52,468
Percentage of long-lived assets held outside of the    Americas		41	%		33	%

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Restricted cash

9 Months Ended

Sep. 30, 2019

Cash And Cash Equivalents [Abstract]

Restricted Cash

6. Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statement of cash flows for the nine months ended September 30, 2019 and 2018.

	September 30, 2019		September 30, 2018		December 31,  2018
	(in thousands)
Cash and cash equivalents	$	225,770	$	96,122	$	111,489
Restricted cash		6,019		5,175		5,175
Restricted cash, included in other assets		1,505		450		450
Total cash, cash equivalents, and restricted cash	$	233,294	$	101,747	$	117,114

Restricted cash is comprised of money market funds and certificates of deposit related to landlord guarantees for our leased facilities. These restricted cash balances have been excluded from our cash and cash equivalents balance on our consolidated balance sheets.

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Leases

9 Months Ended

Sep. 30, 2019

Leases [Abstract]

Leases

2. Leases

Adoption of Updated Leasing Guidance

On January 1, 2019, the Company adopted the new lease guidance using a modified retrospective transition method applied to those leases which were not completed as of January 1, 2019. Results for reporting periods beginning after December 31, 2018 are presented under the new guidance, while prior period comparative amounts are not adjusted and continue to be reported in accordance with historical guidance.  The Company applied the new standard using the package of practical expedients permitted under the transition guidance where the Company:

• did not reassess whether any expired or existing contracts contain a lease;

• did not reassess the classification of existing leases; and

• did not reassess initial direct costs for any existing leases.

In addition, the Company elected the hindsight practical expedient to determine the lease term for existing leases.

The resulting impact, as of the adoption date, to the consolidated balance sheet of applying the new guidance in 2019 versus the prior guidance was an increase to right-of-use assets of $152.2 million, a decrease to other assets of $0.3 million, an increase to total assets of $151.9 million, an increase to short-term lease liabilities of $14.1 million, a decrease to accrued expenses and other current liabilities of $0.5 million, an increase to total current liabilities of $13.5 million, an increase to long-term lease liabilities of $164.8 million, a decrease to deferred rent, net of current portion, of $26.4 million and an increase to total liabilities of $151.9 million. There was no impact to stockholders’ equity or the consolidated statements of operations as a result of adopting the new guidance.  There was no impact to total operating or financing cash flows of applying the new guidance in 2019 versus the prior guidance other than renaming or adding line items to the statements of cash flows to conform to the accounting for, and presentation of, the new standard.

The Company determines if an arrangement contains a lease at inception and does not separate lease and non-lease components of an arrangement determined to contain a lease. Operating and finance leases with a duration of less than 12 months are excluded from right-of-use-assets and lease liabilities and related expense is recorded as incurred.

The Company leases its office facilities under non-cancelable operating leases that expire at various dates through May 2031. Certain leases contain optional termination dates. The table below only considers lease obligations through the optional termination dates, as the Company is not reasonably certain to extend lease agreements beyond those dates.

The following table provides a summary of lease assets and liabilities as of September 30, 2019:

Leases	Balance sheet classification	Amount (in thousands)
Assets:
Operating lease assets	Right-of-use assets	$	215,797
Finance lease assets	Fixed assets		96
Total leased assets		$	215,893
Liabilities:
Current
Operating lease liabilities	Lease liabilities	$	15,646
Finance lease liabilities	Accrued expenses and other current liabilities		57
Noncurrent
Operating	Lease liabilities, net of current portion		225,628
Total lease liabilities		$	241,331

Operating lease costs were $9.0 million for the three months ended September 30, 2019, net of $0.6 million of operating sublease income related to certain office facilities subleased to third parties. Operating lease costs were $23.4 million for the nine months ended September 30, 2019, net of $1.7 million of operating sublease income related to certain office facilities subleased to third parties. Finance lease costs consisted of $0 million related to the amortization finance lease assets and $0 million of interest expense for the three months ended September 30, 2019. Finance lease costs consisted of $0.2 million related to the amortization finance lease assets and $0.1 million of interest expense for the nine months ended September 30, 2019.

The following table provides a reconciliation between non-cancelable lease commitments and lease liabilities as of September 30, 2019:

	Operating leases			Finance Leases
Lease commitments (Note 10)	$	357,756		$	57
Less: Legally binding minimum lease payments for    leases signed but not yet commenced		(41,314	)		—
Less: Present value discount		(75,168	)		—
Total lease liabilities	$	241,274		$	57

Lease Term and Discount Rate

The Company uses its estimated incremental borrowing rate, which is derived from information available at the lease commencement date, in determining the present value of operating lease payments. To determine the estimated incremental borrowing rate, the Company uses publicly available credit ratings for peer companies. The Company estimates the incremental borrowing rate using yields for maturities that are in line with the duration of the lease payments.

The following table provides weighted average remaining lease terms and weighted average discount rate for operating and finance leases as of September 30, 2019:

Weighted-average remaining lease term:
Operating leases	9.5 years
Finance leases	0.5 years
Weighted-average discount rate:
Operating leases	5.8%
Finance leases	3.8%

Other Information

Cash payments related to our operating lease liabilities were $8.3 million for the three months ended September 30, 2019 and $23.0 million for the nine months ended September 30, 2019. Cash payments related to our financing lease liabilities were $0 million for the three months ended September 30, 2019 and $0.2 million for the nine months ended September 30, 2019.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2019

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

10. Commitments and Contingencies

Contractual Obligations

The Company leases its office facilities under non-cancelable operating leases that expire at various dates through May 2031. Lease expense for non-cancelable operating leases with free rental periods or scheduled rent increases is recognized on a straight-line basis over the terms of the leases. Improvement reimbursements from landlords of $13.8 million are being amortized on a straight-line basis into lease expense over the terms of the leases.  Certain leases contain optional termination dates. The table below only includes payments up to the optional termination date. If the Company were to extend leases beyond the optional termination date the future commitments would increase by approximately $80.2 million.

Included in the table below are operating lease commitments for leases that have not yet commenced of approximately $41.3 million for facilities with lease terms of approximately 10 years in the United States, 4 years in Singapore, and 1 year in Colombia.

Future minimum payments under all operating and finance lease agreements as of September 30, 2019 are as follows:

	Operating		Finance
	(in thousands)
2019	$	7,326		57
2020		36,782		—
2021		39,957		—
2022		39,875		—
2023		39,542		—
Thereafter		194,274		—
Total	$	357,756		57
Less: Portion representing interest				—
Capital lease obligation				57

In October 2019, the Company entered into a new 10 year lease in Germany. The new lease commences on or near June 1, 2020. The Company will pay an aggregate of approximately $29.1 million in incremental rent over the lease term.

As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting standard, ASC 840, Leases, the future minimum payments under all operating and finance lease agreements as of December 31, 2018 are as follows:

	Operating		Finance
	(in thousands)
2019	$	27,755	$	298
2020		33,769		33
2021		35,414		—
2022		35,314		—
2023		35,686		—
Thereafter		184,341		—
Total	$	352,279		331
Less: Portion representing interest				(20	)
Capital lease obligation			$	311

There were no material changes in our vendor commitments under non-cancelable arrangements, as disclosed in the Company’s audited consolidated financial statements for the year ended December 31, 2018 and related notes thereto contained in the Company’s Annual Report on Form 10-K, except as disclosed below:

In March 2019, the Company exercised an option to extend an agreement with a technology vendor for an additional two years through June 2023. The Company’s additional contractual obligation under this agreement are approximately $57 million over the additional two years.

Legal Contingencies

From time to time, the Company may become a party to litigation and subject to claims incident to the ordinary course of business, including intellectual property claims, labor and employment claims, and threatened claims, breach of contract claims, tax, and other matters. The Company currently has no material pending litigation.

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Changes in Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2019

Stockholders Equity Note [Abstract]

Summary of Changes in Stockholders' Equity

The following tables summarize the changes in stockholders’ equity for the nine months ended September 30, 2019 and 2018.

	Common Stock, $0.001 Par Value				Additional Paid-In		Accumulated Other Comprehensive			Accumulated
	Shares		Amount		Capital		Loss			Deficit			Total
Balances at December 31, 2018		39,300	$	40	$	589,708	$	(723	)	$	(344,384	)	$	244,641
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		825		1		7,756		—			—			7,757
Issuance of common stock in relation to    common stock offering, net of offering costs    incurred $365		2,151		2		342,628		—			—			342,630
Stock-based compensation		—		—		50,609					—			50,609
Cumulative translation adjustment		—		—		—		(50	)		—			(50	)
Unrealized gain on investments, net of income    taxes of $269		—		—		—		1,014			—			1,014
Net loss		—		—		—		—			(28,457	)		(28,457	)
Balances at June 30, 2019		42,276	$	43	$	990,701	$	241		$	(372,841	)	$	618,144
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		363	$	—	$	2,184	$	—		$	—		$	2,184
Stock-based compensation		—		—		24,161		—			—			24,161
Cumulative translation adjustment		—		—		—		(947	)		—			(947	)
Unrealized loss on investments, net of income    taxes of $(12)		—		—		—		(203	)		—			(203	)
Net loss		—		—		—		—			(14,987	)		(14,987	)
Balances at September 30, 2019		42,639	$	43	$	1,017,046	$	(909	)	$	(387,828	)	$	628,352

	Common Stock, $0.001 Par Value				Additional Paid-In		Accumulated Other Comprehensive			Accumulated
	Shares		Amount		Capital		Loss			Deficit			Total
Balances at December 31, 2017		37,503	$	38	$	496,461	$	(57	)	$	(286,082	)	$	210,360
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		1,030		1		9,015		—			—			9,016
Stock-based compensation		—		—		37,067		—			—			37,067
Cumulative adjustment from adoption of    revenue recognition standard		—		—		—		—			5,526			5,526
Cumulative translation adjustment		—		—		—		(422	)		—			(422	)
Unrealized loss on investments, net of income    taxes of $0		—		—		—		(235	)		—			(235	)
Net loss		—		—		—		—			(33,673	)		(33,673	)
Balances at June 30, 2018		38,533	$	39	$	542,543	$	(714	)	$	(314,229	)	$	227,639
Issuance of common stock under stock    plans, net of shares withheld for    employee taxes		374	$	1	$	358	$	—		$	—		$	359
Stock-based compensation		—		—		20,133		—			—			20,133
Cumulative translation adjustment		—		—		—		(126	)		—			(126	)
Unrealized gain on investments, net of income    taxes of $0		—		—		—		71			—			71
Net loss		—		—		—		—			(18,663	)		(18,663	)
Balances at September 30, 2018		38,907	$	40	$	563,034	$	(769	)	$	(332,892	)	$	229,413

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Organization and Operations - Additional Information (Detail) - USD ($) shares in Thousands, $ in Thousands		6 Months Ended	9 Months Ended
	Feb. 19, 2019	Jun. 30, 2019	Sep. 30, 2019
Organization And Operations [Line Items]
Aggregate proceeds from offering, net of underwriters' discounts and commissions	$ 343,000		$ 342,628
Offering expenses			$ 365
Common Stock [Member]
Organization And Operations [Line Items]
Common stock sold to public	2,200	2,151
Offering expenses	$ 400

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Capitalized Software Development Costs - Summary of Capitalized Software Development Costs Including Stock-Based Compensation and Amortization (Detail) - Internal Use Software [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Capitalized Computer Software [Line Items]
Software development cost capitalized	$ 4,388	$ 3,439	$ 10,625	$ 9,960
Stock-based compensation included in capitalized software development costs	640	563	1,755	1,910
Amortization of capitalized software development costs	$ 2,661	$ 2,293	$ 7,727	$ 6,620

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Property and Equipment, Net - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 108,847	$ 86,910
Less accumulated depreciation and amortization	(44,888)	(34,442)
Property and equipment, net	63,959	52,468
Computer Equipment and Purchased Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	9,747	8,163
Employee Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	12,304	8,972
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	14,053	13,019
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	2,551	2,551
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	50,932	42,894
Equipment under Capital Lease [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	3,450	3,450
Internal Use Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	6,931	5,363
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 8,879	$ 2,498

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Subsequent Event - Additional Information (Detail) - PieSync [Member] - USD ($) $ in Millions	1 Months Ended	9 Months Ended
	Oct. 31, 2019	Sep. 30, 2019
Subsequent Event [Line Items]
Acquisition effective date		Oct. 31, 2019
Business acquisition, description of acquired entity		On October 31, 2019 the Company acquired 100% of the outstanding equity securities of PieSync NV, a limited liability company formed under Belgian law ("PieSync"), for approximately $26.5 million.  PieSync provides a customer data sync platform, enabling bi-directional syncs between business applications.
Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage of outstanding equity securities acquired	100.00%
Cash consideration paid	$ 26.5