Momentive Global (MNTV) 10-Q 5 Aug 21 2021 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Jul. 30, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Trading Symbol	MNTV
Entity Registrant Name	Momentive Global Inc.
Entity Central Index Key	0001739936
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		147,513,041
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	001-38664
Entity Tax Identification Number	80-0765058
Entity Address, Address Line One	One Curiosity Way
Entity Address, City or Town	San Mateo
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94403
City Area Code	650
Local Phone Number	543-8400
Entity Incorporation, State or Country Code	DE
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common Stock, par value $0.00001 per share
Document Quarterly Report	true
Document Transition Report	false
Security Exchange Name	NASDAQ

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 283,199	$ 224,390
Accounts receivable, net of allowance of $730 and $519	22,484	24,177
Deferred commissions, current	6,781	5,429
Prepaid expenses and other current assets	12,142	10,520
Total current assets	324,606	264,516
Property and equipment, net	12,016	18,924
Operating lease right-of-use assets	56,101	56,986
Capitalized internal-use software, net	29,151	29,462
Acquisition intangible assets, net	15,818	21,207
Goodwill	466,728	468,764
Deferred commissions, non-current	11,988	10,018
Other assets	8,187	7,940
Total assets	924,595	877,817
Current liabilities:
Accounts payable	11,450	3,348
Accrued expenses and other current liabilities	19,653	15,198
Accrued compensation	30,807	32,149
Deferred revenue, current	196,656	169,872
Operating lease liabilities, current	9,380	8,318
Debt, current	1,900	1,900
Total current liabilities	269,846	230,785
Deferred revenue, non-current	681	760
Deferred tax liabilities	5,341	5,153
Debt, non-current	210,766	211,716
Operating lease liabilities, non-current	71,654	74,487
Other non-current liabilities	8,758	8,560
Total liabilities	567,046	531,461
Commitments and contingencies (Note 11)
Stockholders’ equity:
Preferred stock ($0.00001 par value; 100,000 shares authorized; no shares issued and outstanding)	0	0
Common stock ($0.00001 par value; 800,000 shares authorized; 147,498 and 143,820 shares issued and outstanding)	1	1
Additional paid-in capital	907,383	835,444
Accumulated other comprehensive income	3,346	5,208
Accumulated deficit	(553,181)	(494,297)
Total stockholders’ equity	357,549	346,356
Total liabilities and stockholders’ equity	$ 924,595	$ 877,817

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Allowance for accounts receivable	$ 730	$ 519
Preferred stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, shares authorized (in shares)	800,000,000	800,000,000
Common stock, shares issued (in shares)	147,498,000	143,820,000
Common stock, shares outstanding (in shares)	147,498,000	143,820,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) - USD ($) shares in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Revenue		$ 109,392,000	$ 90,941,000	$ 211,690,000	$ 179,206,000
Cost of revenue	[1],[2]	21,688,000	21,009,000	42,460,000	40,953,000
Gross profit		87,704,000	69,932,000	169,230,000	138,253,000
Operating expenses:
Research and development	[1]	34,225,000	26,571,000	67,208,000	53,128,000
Sales and marketing	[1],[2]	56,025,000	42,578,000	108,061,000	84,669,000
General and administrative	[1]	24,170,000	21,339,000	47,492,000	43,271,000
Total operating expenses		114,420,000	90,488,000	222,761,000	181,068,000
Loss from operations		(26,716,000)	(20,556,000)	(53,531,000)	(42,815,000)
Interest expense		2,304,000	2,422,000	4,603,000	5,508,000
Other non-operating (income) expense, net		(119,000)	102,000	196,000	(1,134,000)
Loss before income taxes		(28,901,000)	(23,080,000)	(58,330,000)	(47,189,000)
Provision for (benefit from) income taxes		336,000	(156,000)	554,000	(15,000)
Net loss		$ (29,237,000)	$ (22,924,000)	$ (58,884,000)	$ (47,174,000)
Net loss per share, basic and diluted		$ (0.20)	$ (0.17)	$ (0.40)	$ (0.34)
Weighted-average shares used in computing basic and diluted net loss per share		146,242	138,777	145,467	137,844
[1]	(1) Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Cost of revenue $ 1,580 $ 1,047 $ 3,062 $ 2,007 Research and development 10,313 7,496 19,810 13,953 Sales and marketing 6,414 4,841 12,192 9,184 General and administrative 7,266 6,087 14,108 11,829 Stock-based compensation, net of amounts capitalized $ 25,573 $ 19,471 $ 49,172 $ 36,973
[2]	(2) Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Cost of revenue $ 1,477 $ 2,003 $ 2,967 $ 4,013 Sales and marketing 1,117 1,355 2,250 2,713 Amortization of acquisition intangible assets $ 2,594 $ 3,358 $ 5,217 $ 6,726

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Allocated share-based compensation expense	$ 25,573	$ 19,471	$ 49,172	$ 36,973
Amortization of acquisition intangible assets	2,594	3,358	5,217	6,726
Cost of revenue
Allocated share-based compensation expense	1,580	1,047	3,062	2,007
Amortization of acquisition intangible assets	1,477	2,003	2,967	4,013
Research and development
Allocated share-based compensation expense	10,313	7,496	19,810	13,953
Sales and marketing
Allocated share-based compensation expense	6,414	4,841	12,192	9,184
Amortization of acquisition intangible assets	1,117	1,355	2,250	2,713
General and administrative
Allocated share-based compensation expense	$ 7,266	$ 6,087	$ 14,108	$ 11,829

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (unaudited) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net loss		$ (29,237)	$ (22,924)	$ (58,884)	$ (47,174)
Other comprehensive loss:
Foreign currency translation gains (losses)	[1]	1,091	1,547	(1,862)	(889)
Total other comprehensive income (loss)	[1]	1,091	1,547	(1,862)	(889)
Total comprehensive loss		$ (28,146)	$ (21,377)	$ (60,746)	$ (48,063)
[1]	Net of tax effect which was not material.

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (unaudited) - USD ($) $ in Thousands	Total		Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning Balance at Dec. 31, 2019	$ 301,984		$ 1	$ 705,143	$ (444)	$ (402,716)
Beginning balance, Shares at Dec. 31, 2019			136,054,000
Common stock issued upon vesting of restricted stock units	0		$ 0	0	0	0
Common stock issued upon vesting of restricted stock units, Shares			1,996,000
Common stock issued upon stock option exercise	25,629		$ 0	25,629	0	0
Common stock issued upon stock option exercise, Shares			1,920,000
Common stock issued under employee stock purchase plan	3,082		$ 0	3,082	0	0
Common stock issued under employee stock purchase plan, shares			268,000
Stock-based compensation expense	38,459		$ 0	38,459	0	0
Comprehensive income (loss)	(889)	[1]	0	0	(889)	0
Net loss	(47,174)		0	0	0	(47,174)
Ending balance at Jun. 30, 2020	321,091		$ 1	772,313	(1,333)	(449,890)
Ending balance, Shares at Jun. 30, 2020			140,238,000
Beginning Balance at Mar. 31, 2020	307,391		$ 1	737,236	(2,880)	(426,966)
Beginning balance, Shares at Mar. 31, 2020			138,070,000
Common stock issued upon vesting of restricted stock units	0		$ 0	0	0	0
Common stock issued upon vesting of restricted stock units, Shares			1,051,000
Common stock issued upon stock option exercise	11,814		$ 0	11,814	0	0
Common stock issued upon stock option exercise, Shares			849,000
Common stock issued under employee stock purchase plan	3,082		$ 0	3,082	0	0
Common stock issued under employee stock purchase plan, shares			268,000
Stock-based compensation expense	20,181		$ 0	20,181	0	0
Comprehensive income (loss)	1,547	[1]	0	0	1,547	0
Net loss	(22,924)		0	0	0	(22,924)
Ending balance at Jun. 30, 2020	321,091		$ 1	772,313	(1,333)	(449,890)
Ending balance, Shares at Jun. 30, 2020			140,238,000
Beginning Balance at Dec. 31, 2020	346,356		$ 1	835,444	5,208	(494,297)
Beginning balance, Shares at Dec. 31, 2020			143,820,000
Common stock issued upon vesting of restricted stock units	0		$ 0	0	0	0
Common stock issued upon vesting of restricted stock units, Shares			1,993,000
Common stock issued upon stock option exercise	$ 17,758		$ 0	17,758	0	0
Common stock issued upon stock option exercise, Shares	1,229,180		1,229,000
Issuance of restricted stock awards	$ 0		$ 0	0	0	0
Issuance of restricted stock awards, Shares			274,000
Cancellation of restricted stock awards	0		$ 0	0	0	0
Cancellation of restricted stock awards, Shares			(64,000)
Common stock issued under employee stock purchase plan	3,873		$ 0	3,873	0	0
Common stock issued under employee stock purchase plan, shares			246,000
Stock-based compensation expense	50,308		$ 0	50,308	0	0
Comprehensive income (loss)	(1,862)	[1]	0	0	(1,862)	0
Net loss	(58,884)		0	0	0	(58,884)
Ending balance at Jun. 30, 2021	357,549		$ 1	907,383	3,346	(553,181)
Ending balance, Shares at Jun. 30, 2021			147,498,000
Beginning Balance at Mar. 31, 2021	347,486		$ 1	869,174	2,255	(523,944)
Beginning balance, Shares at Mar. 31, 2021			145,638,000
Common stock issued upon vesting of restricted stock units	0		$ 0	0	0	0
Common stock issued upon vesting of restricted stock units, Shares			1,026,000
Common stock issued upon stock option exercise	8,186		$ 0	8,186	0	0
Common stock issued upon stock option exercise, Shares			588,000
Common stock issued under employee stock purchase plan	3,873		$ 0	3,873	0	0
Common stock issued under employee stock purchase plan, shares			246,000
Stock-based compensation expense	26,150		$ 0	26,150	0	0
Comprehensive income (loss)	1,091	[1]	0	0	1,091	0
Net loss	(29,237)		0	0	0	(29,237)
Ending balance at Jun. 30, 2021	$ 357,549		$ 1	$ 907,383	$ 3,346	$ (553,181)
Ending balance, Shares at Jun. 30, 2021			147,498,000
[1]	Net of tax effect which was not material.

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities
Net loss	$ (58,884)	$ (47,174)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	21,478	24,502
Non-cash leases expense	6,593	6,830
Stock-based compensation expense, net of amounts capitalized	49,172	36,973
Deferred income taxes	197	195
Bad debt expense	590	790
Gain on sale of a private company investment	0	(1,001)
Other	310	888
Changes in assets and liabilities:
Accounts receivable	840	(1,506)
Prepaid expenses and other assets	(7,530)	(6,714)
Accounts payable and accrued liabilities	12,691	5,659
Accrued compensation	(1,052)	(4,408)
Deferred revenue	26,678	18,720
Operating lease liabilities	(7,522)	(7,659)
Net cash provided by operating activities	43,561	26,095
Cash flows from investing activities
Purchases of property and equipment	(322)	(772)
Capitalized internal-use software	(4,418)	(5,372)
Proceeds from sale of a private company investment	0	1,001
Net cash used in investing activities	(4,740)	(5,143)
Cash flows from financing activities
Proceeds from stock option exercises	17,703	24,279
Proceeds from employee stock purchase plan	3,873	3,082
Repayment of debt	(1,100)	(1,100)
Net cash provided by financing activities	20,476	26,261
Effect of exchange rate changes on cash	101	(1,090)
Net increase in cash, cash equivalents and restricted cash	59,398	46,123
Cash, cash equivalents and restricted cash at beginning of period	224,614	131,683
Cash, cash equivalents and restricted cash at end of period	284,012	177,806
Supplemental cash flow data:
Interest paid for term debt	4,267	5,198
Income taxes paid	618	394
Non-cash investing and financing transactions:
Stock compensation included in capitalized software costs	1,136	1,486
Lease liabilities arising from obtaining right-of-use assets, net	2,676	0
Proceeds receivable from stock option exercises	$ 77	$ 1,350

Company Overview and Basis of P

Company Overview and Basis of Presentation	6 Months Ended
	Jun. 30, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Company Overview and Basis of Presentation	1. Company Overview and Basis of Presentation Business Momentive Global Inc. (the “Company”), formerly SVMK Inc., is an agile experience management company focused on helping customers shape what’s next. The Company offers SaaS feedback solutions across three major product categories—Surveys, Customer Experience, and Market Research. The Company was incorporated in 2011 as SVMK Inc., a Delaware corporation, and is the successor to operations originally started in 1999. In June 2021, SVMK Inc. was rebranded. As part of this rebranding, SVMK Inc. changed its legal name to Momentive Global Inc. and its common stock began trading under the ticker symbol “MNTV” instead of “SVMK” on The Nasdaq Global Select Market. While the Company’s name has changed, it continues to use the “SurveyMonkey” and “GetFeedback” brands among its portfolio of products. The Company’s headquarters are located in the United States and its international operations are primarily based in Ireland, Canada and the Netherlands. Principles of Consolidation and Basis of Presentation The accompanying interim condensed consolidated balance sheet as of June 30, 2021, the statements of operations, comprehensive loss, stockholders’ equity and cash flows for the three and six months ended June 30, 2021 and 2020 are unaudited. Such condensed consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. These condensed consolidated financial statements include the results of operations of the Company and its wholly-owned subsidiaries. All significant intercompany transactions have been eliminated . These condensed consolidated financial statements do not include all disclosures normally required in annual consolidated financial statements prepared in accordance with GAAP. In management’s opinion, the condensed consolidated financial statements have been prepared on the same basis as the annual financial statements and include all normal recurring adjustments necessary for the fair presentation of the Company’s financial position as of June 30, 2021, the results of operations for the three and six months ended June 30, 2021 and 2020, and cash flows for the six months ended June 30, 2021 and 2020. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results to be expected for the full year or any other future interim or annual periods. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Form 10-K filed with the SEC on February 18, 2021. Use of Estimates The preparation of condensed consolidated financial statements in conformity with GAAP requires the Company’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the condensed consolidated financial statements and reported amounts of revenue and expenses during the reporting periods covered by the condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates due to a variety of factors, including the unforeseen effects of the COVID-19 pandemic on the Company’s business and financial results. Due to the COVID-19 pandemic, there is ongoing uncertainty and significant disruption in the global economy and financial markets. The Company is not aware of any specific event or circumstances that would require an update to its estimates, judgments or assumptions or a revision to the carrying value of its assets or liabilities as of the date of issuance of its financial statements. These estimates, judgments and assumptions may change in the future, as new events occur or additional information is obtained. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable. The Company’s most significant estimate and use of judgment involves the valuation of acquired goodwill and intangibles from acquisitions. Segment Information The Company operates as a single Related Party Transactions Certain members of the Company’s Board of Directors (“Board”) serve as board members, are executive officers of and/or (in some cases) are investors in companies that are customers and/or vendors of the Company. The Company incurred related party expenses of $0.9 million and $1.7 million for the three and six months ended June 30, 2021, respectively, and $1.0 million and $2.0 million during the three and six months ended June 30, 2020, respectively.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies There have been no material changes in our significant accounting policies as described in our Annual Report on Form 10-K for the year ended December 31, 2020. Other Non-Operating (Income) Expense Other non-operating (income) expense, net consists primarily of interest income, net foreign currency exchange (gains) losses, gain on sale of private company investments, net realized gains and losses related to investments, and other. The components of other non-operating (income) expense recognized in the condensed consolidated financial statements is as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Interest Income $ (129 ) $ (72 ) $ (263 ) $ (479 ) Foreign currency (gains) losses, net 75 166 449 344 Gain on sale of a private company investment — — — (1,001 ) Other (income) expense, net (65 ) 8 10 2 Other non-operating (income) expense, net $ (119 ) $ 102 $ 196 $ (1,134 ) During the six months ended June 30, 2020, the Company recognized a gain on sale of a private company investment of $1.0 million, which was the final installment of an earn-out payment. Accounting Pronouncement Not Yet Adopted Reference Rate Reform : In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting . ASU 2020-04 is intended to provide temporary optional expedients and exceptions to the GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate (“LIBOR”) and other interbank offered rates to alternative reference rates. This guidance is effective beginning on March 12, 2020, and the Company may elect to apply the amendments prospectively through December 31, 2022. The Company does not expect this update will have a material impact on its condensed consolidated financial statements and related disclosures.

Revenue and Deferred Revenue

Revenue and Deferred Revenue	6 Months Ended
	Jun. 30, 2021
Revenue From Contract With Customer [Abstract]
Revenue and Deferred Revenue	3. Revenue and Deferred Revenue Disaggregated revenue Revenue by sales channel was as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Self-serve revenue $ 75,462 $ 65,398 $ 146,574 $ 128,505 Enterprise revenue 33,930 25,543 65,116 50,701 Revenue $ 109,392 $ 90,941 $ 211,690 $ 179,206 Self-serve revenues are generated from products purchased independently through our website. Enterprise revenues are generated from products sold to organizations through our sales team. In addition, see Note 4 for information regarding the Company’s revenue by geographic area. Deferred revenue The Company recognized into revenue $80.5 million and $125.5 million during the three and six months ended June 30, 2021, respectively, and $65.1 million and $105.5 million during the three and six months ended June 30, 2020, respectively, that was included in the deferred revenue balances at the beginning of each respective period. Transaction price allocated to the remaining performance obligations As of June 30, 2021, future estimated revenue related to non-cancelable performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period was $221.6 million. The substantial majority of the unsatisfied performance obligations will be satisfied over the next twelve months.

Geographical Information

Geographical Information	6 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Geographical Information	4. Geographical Information Revenue by geography is generally based on the billing address of the customer. For purposes of its geographic revenue disclosure, the Company defines a customer as an organization. An organization may consist of an individual paying user, multiple paying users within an organization or the organization itself. The following table sets forth the percentage of revenue by geographic area: Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 United States 64 % 65 % 64 % 65 % Rest of world 36 % 35 % 36 % 35 % No other country outside of the United States comprised 10% or greater of the Company’s revenue for each of the three and six months ended June 30, 2021 and 2020, respectively.

Cash and Cash Equivalents

Cash and Cash Equivalents	6 Months Ended
	Jun. 30, 2021
Cash And Cash Equivalents [Abstract]
Cash and Cash Equivalents	5. Cash and Cash Equivalents As of June 30, 2021 and December 31, 2020, the following table provides a reconciliation of the amount of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheets to the total of the same such amounts shown in the condensed consolidated statements of cash flows: (in thousands) June 30, 2021 December 31, 2020 Cash and cash equivalents $ 283,199 $ 224,390 Restricted cash included in prepaid expenses and other current assets 488 224 Restricted cash included in other assets 325 — Total cash, cash equivalents and restricted cash $ 284,012 $ 224,614 Included in cash and cash equivalents are cash in transit from payment processors for credit and debit card transactions of $3.2 million and $1.6 million as of June 30, 2021 and December 31, 2020, respectively.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	6. Fair Value Measurements Assets and liabilities recorded at fair value in the condensed consolidated financial statements are categorized based on the level of judgment associated with the inputs used to measure their fair value. Hierarchical levels which directly relate to the amount of subjectivity associated with the inputs to the valuation of these assets or liabilities are as follows: Level 1 – Observable inputs, such as 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 that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The carrying amounts of the Company’s financial instruments, which generally include cash equivalents, accounts receivable and accounts payable, approximate their fair values due to their short maturities. Based on borrowing rates currently available to the Company for debt with similar terms and consideration of default and credit risk, the fair value of the Company’s debt was approximately $212.3 million and $214.5 million as of June 30, 2021 and December 31, 2020, respectively. As of June 30, 2021 and December 31, 2020, respectively, the Company did not have any financial instruments accounted for pursuant to ASC 820, Fair Value Measurement

Property and Equipment

Property and Equipment	6 Months Ended
	Jun. 30, 2021
Property Plant And Equipment [Abstract]
Property and Equipment	7. Property and Equipment As of June 30, 2021 and December 31, 2020, property and equipment consisted of the following: (in thousands) June 30, 2021 December 31, 2020 Computer equipment $ 15,668 $ 15,770 Leasehold improvements 54,333 54,079 Furniture, fixtures, and other assets 10,564 10,944 Gross property and equipment 80,565 80,793 Less: Accumulated depreciation (68,549 ) (61,869 ) Property and equipment, net $ 12,016 $ 18,924 Depreciation expense was $3.4 million and $7.0 million during the three and six months ended June 30, 2021, respectively, and $4.2 million and $8.6 million during the three and six months ended June 30, 2020, respectively.

Intangible Assets and Goodwill

Intangible Assets and Goodwill	6 Months Ended
	Jun. 30, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible Assets and Goodwill	8. Intangible Assets and Goodwill Acquisition intangible assets, net As of June 30, 2021 and December 31, 2020, intangible assets, net consisted of the following: June 30, 2021 December 31, 2020 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Customer relationships $ 23,734 $ (14,412 ) $ 9,322 $ 23,804 $ (12,448 ) $ 11,356 Trade name 2,783 (1,507 ) 1,276 2,824 (1,285 ) 1,539 Developed technology 20,500 (15,280 ) 5,220 20,881 (12,569 ) 8,312 Acquisition intangible assets, net $ 47,017 $ (31,199 ) $ 15,818 $ 47,509 $ (26,302 ) $ 21,207 Amortization expense was $2.6 million and $5.2 million during the three months and six months ended June 30, 2021, respectively, and $3.4 million and $6.7 million during the three and six months ended June 30, 2020, respectively. Goodwill The changes in the carrying amount of goodwill were as follows (in thousands): Balance as of December 31, 2020 $ 468,764 Foreign currency translation (2,036 ) Balance as of June 30, 2021 $ 466,728 Capitalized internal-use software As of June 30, 2021 and December 31, 2020, capitalized internal-use software consisted of the following: (in thousands) June 30, 2021 December 31, 2020 Gross capitalized internal-use software $ 56,380 $ 50,833 Less: Accumulated amortization (27,229 ) (21,371 ) Capitalized internal-use software, net $ 29,151 $ 29,462 Amortization expense related to capitalized internal-use software was $3.0 million and $5.9 million during the three months and six months ended June 30, 2021, respectively, and $3.6 million and $7.3 million during the three and six months ended June 30, 2020, respectively, and is included in cost of revenue in the condensed consolidated statements of operations. Future amortization expense As of June 30, 2021, future amortization expense by year is expected to be as follows: (in thousands) Capitalized internal-use software, net Acquisition intangible assets, net Remainder of 2021 $ 5,458 $ 4,966 2022 7,397 5,076 2023 2,018 1,920 2024 68 1,667 2025 — 1,389 Thereafter — 800 Total amortization expense $ 14,941 $ 15,818 Future capitalized internal-use software amortization excludes $14.2 million of costs which are currently in the development phase.

Employee Benefit Plans

Employee Benefit Plans	6 Months Ended
	Jun. 30, 2021
Compensation Related Costs [Abstract]
Employee Benefit Plans	9. Employee Benefit Plans Equity Incentive Plans The Company sponsors the 2018 Equity Incentive Plan (the “2018 Plan”), which was approved by stockholders on September 5, 2018. The purpose of the 2018 Plan is to promote the long-term growth and profitability of the Company by (i) providing employees with incentives to improve stockholder value and to contribute to the growth and financial success of the Company through their future services, and (ii) enabling the Company to attract, retain and reward the best‑available persons. The options granted under the 2018 Plan, may be granted at a price not less than the fair market value on the grant date. The Board, or a committee of the Board, has granted options with an exercise price at fair value on the grant date. Grants of time-based awards generally vest over a four-year three-year As of June 30, 2021, 17,129,162 shares of common stock remain available for grant under the 2018 Plan. The following is a summary of restricted stock units for the current year period: Restricted Stock Units Number of Shares Weighted Average Grant-Date Fair Value Weighted Average Remaining Contractual Term (in years) Unvested at December 31, 2020 7,000,855 $ 17.72 1.1 Granted 3,279,068 $ 25.56 Vested (1,993,215 ) $ 17.83 Forfeited/cancelled (981,563 ) $ 19.84 Unvested at June 30, 2021 7,305,145 $ 20.93 1.2 The following is a summary of stock option activity for the current year period: Stock Options Number of Shares Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) Weighted Average Remaining Contractual Term (in years) Outstanding at December 31, 2020 15,100,142 $ 16.07 $ 143,156 6.9 Granted 2,636,878 $ 21.77 Exercised (1,229,180 ) $ 14.45 Forfeited (774,324 ) $ 19.35 Expired (81,383 ) $ 19.49 Outstanding, vested and expected to vest at June 30, 2021 15,652,133 $ 16.98 $ 67,395 6.8 Vested and exercisable at June 30, 2021 10,668,302 $ 15.68 $ 58,283 5.9 On February 16, 2021, the Company granted 580,911 options to purchase shares of the Company’s common stock to its Chief Executive Officer at an exercise price of $21.99 per share (the “Executive Option Grant”). The stock options contain a service condition and a market condition of achieving a per share price milestone. The grant-date fair value of the award is $5.7 million, which will be recognized using the accelerated attribution method. Stock-based compensation is recognized for each vesting tranche using service periods that range from 9 months to 3 years. The grant-date fair value was determined using the Monte Carlo valuation, which incorporates various assumptions including expected stock price volatility, contractual term, dividend yield, and stock price at grant date. During the three and six months ended June 30, 2021, the Company recognized $1.1 million and $1.6 million of stock-based compensation expense, respectively, related to this award, which is included in general and administrative expense in the condensed consolidated statement of operations. The following is a summary of restricted stock awards for the current year period: Restricted Stock Awards Number of Shares Weighted Average Grant-Date Fair Value Weighted Average Remaining Contractual Term (in years) Unvested at December 31, 2020 102,460 $ 18.30 1.2 Granted 274,417 $ 26.89 Vested (51,619 ) $ 21.21 Forfeited/cancelled (64,823 ) $ 26.89 Unvested at June 30, 2021 260,435 $ 24.64 2.1 Fair Value of Stock Options Except for the Executive Option Grant discussed above, the Company used the Black-Scholes-Merton option pricing model to estimate the fair value of stock options granted using the following weighted-average assumptions: Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Expected life (in years) 6.2 6.2 5.8 5.8 Risk-free interest rate 1.2% 0.5% 0.8% 1.4% Volatility 51% 52% 51% 48% Dividend yield —% —% —% —% Fair value of common stock $18.39 $19.24 $21.70 $21.15 2018 Employee Stock Purchase Plan, As Amended The Company sponsors the 2018 Employee Stock Purchase Plan, as amended (the “ESPP”), which was approved by stockholders on September 5, 2018. The ESPP provides for 24-month offering periods beginning May 22 and November 22 of each year, and each offering period will consist of four six-month Under the reset provision, if the closing stock price on the purchase date falls below the closing stock price on the offering date of an ongoing offering period, the ongoing offering terminates immediately following the purchase of ESPP shares on the purchase date and participants in the terminated offering are automatically enrolled in the new offering period (“ESPP reset”), resulting in a modification charge to be recognized over the new offering period. During the three and six months ended June 30, 2021, there was an ESPP reset that resulted in a modification charge of $2.0 million, which is being recognized over the new offering period ending in May 2023. During the three and six months ended June 30, 2021, the Company’s employees purchased 245,914 shares of its common stock under the ESPP with a weighted average purchase price of $15.75, with aggregate proceeds to the Company of $3.9 million. During the three and six months ended June 30, 2020, the Company’s employees purchased 267,757 shares of its common stock under the ESPP with a weighted average purchase price of $11.51, with aggregate proceeds to the Company of $3.1 million. As of June 30, 2021, 5,416,004 shares of common stock remain available for issuance under the ESPP. The Company used the Black-Scholes-Merton option pricing model to estimate the fair value of ESPP purchase rights granted using the following weighted-average assumptions: Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Expected life (in years) 1.3 1.3 1.3 1.3 Risk-free interest rate 0.1% 0.2% 0.1% 0.2% Volatility 53% 58% 53% 58% Dividend yield —% —% —% —% Fair value of common stock $19.12 $19.81 $19.12 $19.81 Stock-Based Compensation Expense Stock-based compensation expense recognized in the condensed consolidated financial statements is as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Cost of revenue $ 1,580 $ 1,047 $ 3,062 $ 2,007 Research and development 10,313 7,496 19,810 13,953 Sales and marketing 6,414 4,841 12,192 9,184 General and administrative 7,266 6,087 14,108 11,829 Stock-based compensation expense, net of amounts capitalized 25,573 19,471 49,172 36,973 Capitalized stock-based compensation expense 577 710 1,136 1,486 Stock-based compensation expense $ 26,150 $ 20,181 $ 50,308 $ 38,459 As of June 30, 2021, unamortized stock-based compensation was as follows: Unrecognized stock-based compensation (in thousands) Weighted average vesting period (in years) Restricted stock units $ 140,150 2.4 Stock options 41,763 2.3 Restricted stock awards 5,872 2.3 ESPP 7,127 1.9 Total unrecognized stock-based compensation $ 194,912 401(k) Plan In the United States, the Company offers its employees a defined contribution plan that qualifies as a deferred salary arrangement under Section 401 of the U.S. Internal Revenue Code (“401(k) Plan”). Under the 401(k) Plan, participating employees may defer a portion of their pretax earnings not to exceed the maximum amount allowed by the Internal Revenue Service. The Company currently provides a matching contribution of 25% of deferrals for eligible employees. Compensation expense for the Company's matching contributions was $1.2 million and $2.6 million during the three months and six months ended June 30, 2021, respectively, and $1.0 million and $2.2 million during the three and six months ended June 30, 2020, respectively.

Leases

Leases	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Leases	10. Leases The Company leases certain equipment and facilities under operating leases which expire at various dates through 2028. The Company’s operating lease costs were as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Operating lease cost (gross lease expense) $ 3,253 $ 3,414 $ 6,644 $ 6,878 Variable lease costs 1,106 1,414 2,152 3,017 Sublease income (including reimbursed expenses) 1,309 1,162 2,565 2,579 During each of the three and six months ended June 30, 2021 and 2020, the Company’s short-term lease costs were nominal. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants . The weighted average remaining operating lease term was 7.1 years and 7.6 years as of June 30, 2021 and December 31, 2020, respectively. The weighted average discount rate used to estimate operating lease liabilities was 7.4% and 7.5% as of June 30, 2021 and December 31, 2020, respectively. As of June 30, 2021, maturities of operating lease liabilities and sublease income, by year are as follows: (in thousands) Operating Lease Payments Sublease Income Remainder of 2021 $ 7,449 $ (1,904 ) 2022 14,874 (1,481 ) 2023 14,399 (1,101 ) 2024 13,794 — 2025 13,552 — Thereafter 42,342 — Gross lease payments (income) $ 106,410 $ (4,486 ) Less: Imputed interest 24,920 Less: Tenant improvement receivables 456 Total operating lease liabilities $ 81,034

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	11. Commitments and Contingencies Non-Cancelable Purchase Commitments The Company enters into commitments under non-cancelable purchase orders for the procurement of goods and services in the ordinary course of business. As of June 30, 2021, expected payments under such commitments are as follows (in thousands): Remainder of 2021 $ 6,811 2022 14,793 2023 10,282 2024 2,115 Total purchase commitments $ 34,001 Letters of Credit As of June 30, 2021, the Company had a standby letter of credit for $2.5 million which was issued in connection with the San Mateo facility. Legal Matters From time to time, the Company is subject to legal proceedings, claims and litigation arising in the ordinary course of business, which may include, but are not limited to, patent and privacy matters, labor and employment claims, class action lawsuits, as well as inquiries, investigations, audits and other regulatory proceedings. Periodically, the Company evaluates developments in its legal matters and records a liability when it believes that it is both probable that a loss has been incurred and the amount can be reasonably estimated. Significant judgment is required to determine both the likelihood of there being, and the estimated amount of, a loss related to such matters, and the Company's judgment may be incorrect. There are currently no legal matters or claims that have arisen from the normal course of business that the Company believes would have a material impact on the Company’s financial position, results of operations or cash flows. Warranties and Indemnification The Company’s subscription services are generally warranted to perform materially in accordance with the Company’s online help documentation under normal use and circumstances. Additionally, the Company’s arrangements generally include provisions for indemnifying customers against liabilities if its subscription services infringe a third party’s intellectual property rights. Furthermore, the Company may also incur liabilities if it breaches the security or confidentiality obligations in its arrangements. To date, the Company has not incurred significant costs and has not accrued a liability in the accompanying condensed consolidated financial statements as a result of these obligations.

Debt

Debt	6 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Debt	12. Debt As of June 30, 2021 and December 31, 2020 the carrying values of debt were as follows: June 30, 2021 December 31, 2020 Issuance date Maturity date Amount (in thousands) Effective Interest Rate Amount (in thousands) Effective Interest Rate 2018 Refinancing Facility Agreement October 2018 October 2025 $ 213,950 3.8% - 3.9% $ 215,050 3.9% - 5.4% Less: Unamortized issuance discount and issuance costs, net 1,284 1,434 Less: Debt, current 1,900 1,900 Debt, non-current $ 210,766 $ 211,716 In October 2018, the Company entered into a Refinancing Facility Agreement (“2018 Credit Facility”), comprising a $220.0 million term loan (the “Term Loan”) and $75.0 million revolving credit facility. Loans under the 2018 Credit Facility accrue interest based upon, at the Company’s option, either at an alternate base interest rate (“ABR”) or a Eurocurrency rate, in each case plus an applicable margin. The applicable margin for the Term Loan is 2.75% in the case of a ABR loan and 3.75% in the case of a Eurocurrency loan, and the applicable margin for the revolving loan ranges from 0.75% to 1.50% in the case of a ABR loan and 1.75% to 2.50% in the case of a Eurocurrency loan, and is based on the Company’s leverage ratio. The Company will make quarterly principal payments of $550,000 on the Term Loan with any remaining principal amounts due on October 10, 2025. The principal amount on the revolving credit facility is due and all revolver commitments terminate on October 10, 2023. As of June 30, 2021, the Company had $72.5 million of borrowing available under the line of credit portion of the 2018 Credit Facility. The Company’s obligations under the 2018 Credit Facility are guaranteed by certain of its subsidiaries and secured by liens on substantially all of the assets of the Company and such subsidiaries. The 2018 Credit Facility contains financial, affirmative and negative covenants that, if violated, may require the Company to pay down the loans earlier than the stated maturity dates with higher interest rates. As of June 30, 2021, the Company was compliant with all of its debt covenant requirements in the 2018 Credit Facility. The Company believes that it will continue to comply with the terms of the loan agreements through the stated maturity dates. However, if the Company’s projections do not materialize, the Company may require additional equity or debt financing. There can be no assurance that additional financing, if required, will be available on terms satisfactory to the Company. Principal and interest payments are due quarterly. As of June 30, 2021, future minimum payment obligations of principal amounts due by year under the 2018 Credit Facility were as follows (in thousands): Remainder of 2021 $ 1,100 2022 2,200 2023 2,200 2024 2,200 2025 206,250 Total principal outstanding $ 213,950

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	13. Income Taxes The Company recorded an income tax provision of $0.3 million and $0.6 million for the three and six months ended June 30, 2021, respectively, and an income tax benefit of $0.2 million and $15,000 for the three and six months ended June 30, 2020, respectively. The increase in the Company’s income tax expense for the three and six months ended June 30, 2021, relative to the respective prior periods, was primarily due to the Company’s continued international expansion. The Company regularly evaluates the realizability of its net deferred tax assets based on all available evidence, both positive and negative. The realization of net deferred tax assets is dependent on several factors, including the likelihood and amount, if any, of future taxable income in relevant jurisdictions during periods in which those temporary differences become deductible. As of June 30, 2021, the Company continues to maintain a valuation allowance on certain deferred tax assets in the United States and certain foreign jurisdictions that are not realizable on a more likely than not basis. The Company believes that it has provided adequate reserves for its income tax uncertainties in all open tax years. As the outcome of the audits cannot be predicted with certainty, if any issues addressed in the Company's tax audits are resolved in a manner inconsistent with management's expectations, the Company could be required to adjust its provision for income taxes in the period such resolution occurs. There were no material changes in gross unrecognized tax benefits during each of the three and six months ended June 30, 2021 and 2020.

Net Loss Per Share

Net Loss Per Share	6 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
Net Loss Per Share	14. Net Loss Per Share Basic earnings per share is computed by dividing net loss by the weighted-average number of common shares outstanding during the period. Diluted earnings per share is computed by dividing net loss for the period by the weighted-average number of common shares outstanding during the period which includes potential dilutive common shares assuming the dilutive effect of outstanding restricted stock units, stock options, restricted stock awards, and shares issuable under the ESPP calculated using the treasury stock method. The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended June 30, Six Months Ended June 30, (in thousands, except per share amounts) 2021 2020 2021 2020 Numerator: Net loss $ (29,237 ) $ (22,924 ) $ (58,884 ) $ (47,174 ) Denominator: Weighted-average shares outstanding - basic and diluted 146,242 138,777 145,467 137,844 Net loss per common share - basic and diluted: $ (0.20 ) $ (0.17 ) $ (0.40 ) $ (0.34 ) The Company was in a loss position for the periods presented. Accordingly, basic net loss per share is the same as diluted net loss per share as the inclusion of all potential common shares outstanding would have been anti-dilutive. Prior to application of the treasury stock method, share equivalents (comprising restricted stock units, stock options, restricted stock awards, and shares issuable under the ESPP) excluded from the calculations of diluted net loss per share were 24.1 million during the three and six months ended June 30, 2021, and 25.4 million during the three and six months ended June 30, 2020.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Principles of Consolidation and Basis of Presentation	Principles of Consolidation and Basis of Presentation The accompanying interim condensed consolidated balance sheet as of June 30, 2021, the statements of operations, comprehensive loss, stockholders’ equity and cash flows for the three and six months ended June 30, 2021 and 2020 are unaudited. Such condensed consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. These condensed consolidated financial statements include the results of operations of the Company and its wholly-owned subsidiaries. All significant intercompany transactions have been eliminated . These condensed consolidated financial statements do not include all disclosures normally required in annual consolidated financial statements prepared in accordance with GAAP. In management’s opinion, the condensed consolidated financial statements have been prepared on the same basis as the annual financial statements and include all normal recurring adjustments necessary for the fair presentation of the Company’s financial position as of June 30, 2021, the results of operations for the three and six months ended June 30, 2021 and 2020, and cash flows for the six months ended June 30, 2021 and 2020. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results to be expected for the full year or any other future interim or annual periods. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Form 10-K filed with the SEC on February 18, 2021.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with GAAP requires the Company’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the condensed consolidated financial statements and reported amounts of revenue and expenses during the reporting periods covered by the condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates due to a variety of factors, including the unforeseen effects of the COVID-19 pandemic on the Company’s business and financial results. Due to the COVID-19 pandemic, there is ongoing uncertainty and significant disruption in the global economy and financial markets. The Company is not aware of any specific event or circumstances that would require an update to its estimates, judgments or assumptions or a revision to the carrying value of its assets or liabilities as of the date of issuance of its financial statements. These estimates, judgments and assumptions may change in the future, as new events occur or additional information is obtained. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable. The Company’s most significant estimate and use of judgment involves the valuation of acquired goodwill and intangibles from acquisitions.
Segment Information	Segment Information The Company operates as a single
Related Party Transactions	Related Party Transactions Certain members of the Company’s Board of Directors (“Board”) serve as board members, are executive officers of and/or (in some cases) are investors in companies that are customers and/or vendors of the Company. The Company incurred related party expenses of $0.9 million and $1.7 million for the three and six months ended June 30, 2021, respectively, and $1.0 million and $2.0 million during the three and six months ended June 30, 2020, respectively.
Other Non-Operating (Income) Expense	Other Non-Operating (Income) Expense Other non-operating (income) expense, net consists primarily of interest income, net foreign currency exchange (gains) losses, gain on sale of private company investments, net realized gains and losses related to investments, and other. The components of other non-operating (income) expense recognized in the condensed consolidated financial statements is as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Interest Income $ (129 ) $ (72 ) $ (263 ) $ (479 ) Foreign currency (gains) losses, net 75 166 449 344 Gain on sale of a private company investment — — — (1,001 ) Other (income) expense, net (65 ) 8 10 2 Other non-operating (income) expense, net $ (119 ) $ 102 $ 196 $ (1,134 ) During the six months ended June 30, 2020, the Company recognized a gain on sale of a private company investment of $1.0 million, which was the final installment of an earn-out payment.
Accounting Pronouncements Recently Adopted and Not Yet Adopted	Accounting Pronouncement Not Yet Adopted Reference Rate Reform : In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting . ASU 2020-04 is intended to provide temporary optional expedients and exceptions to the GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate (“LIBOR”) and other interbank offered rates to alternative reference rates. This guidance is effective beginning on March 12, 2020, and the Company may elect to apply the amendments prospectively through December 31, 2022. The Company does not expect this update will have a material impact on its condensed consolidated financial statements and related disclosures.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Components of Other Non-Operating (Income) Expense Recognized in Condensed Consolidated Financial Statements	The components of other non-operating (income) expense recognized in the condensed consolidated financial statements is as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Interest Income $ (129 ) $ (72 ) $ (263 ) $ (479 ) Foreign currency (gains) losses, net 75 166 449 344 Gain on sale of a private company investment — — — (1,001 ) Other (income) expense, net (65 ) 8 10 2 Other non-operating (income) expense, net $ (119 ) $ 102 $ 196 $ (1,134 )

Revenue and Deferred Revenue (T

Revenue and Deferred Revenue (Tables)	6 Months Ended
	Jun. 30, 2021
Revenue From Contract With Customer [Abstract]
Summary of Disaggregated Revenue by Sales Channel	Revenue by sales channel was as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Self-serve revenue $ 75,462 $ 65,398 $ 146,574 $ 128,505 Enterprise revenue 33,930 25,543 65,116 50,701 Revenue $ 109,392 $ 90,941 $ 211,690 $ 179,206

Geographical Information (Table

Geographical Information (Tables)	6 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Schedule of Percentage of Revenue by Geographic Area	The following table sets forth the percentage of revenue by geographic area: Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 United States 64 % 65 % 64 % 65 % Rest of world 36 % 35 % 36 % 35 %

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	6 Months Ended
	Jun. 30, 2021
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Summary of Reconciliation of the Cash, Cash Equivalents, and Restricted Cash	As of June 30, 2021 and December 31, 2020, the following table provides a reconciliation of the amount of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheets to the total of the same such amounts shown in the condensed consolidated statements of cash flows: (in thousands) June 30, 2021 December 31, 2020 Cash and cash equivalents $ 283,199 $ 224,390 Restricted cash included in prepaid expenses and other current assets 488 224 Restricted cash included in other assets 325 — Total cash, cash equivalents and restricted cash $ 284,012 $ 224,614

Property and Equipment (Tables)

Property and Equipment (Tables)	6 Months Ended
	Jun. 30, 2021
Property Plant And Equipment [Abstract]
Schedule of Property and Equipment	As of June 30, 2021 and December 31, 2020, property and equipment consisted of the following: (in thousands) June 30, 2021 December 31, 2020 Computer equipment $ 15,668 $ 15,770 Leasehold improvements 54,333 54,079 Furniture, fixtures, and other assets 10,564 10,944 Gross property and equipment 80,565 80,793 Less: Accumulated depreciation (68,549 ) (61,869 ) Property and equipment, net $ 12,016 $ 18,924

Intangible Assets and Goodwill

Intangible Assets and Goodwill (Tables)	6 Months Ended
	Jun. 30, 2021
Acquisitions Intangible Assets And Goodwill [Abstract]
Schedule of Intangible Assets, net	As of June 30, 2021 and December 31, 2020, intangible assets, net consisted of the following: June 30, 2021 December 31, 2020 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Customer relationships $ 23,734 $ (14,412 ) $ 9,322 $ 23,804 $ (12,448 ) $ 11,356 Trade name 2,783 (1,507 ) 1,276 2,824 (1,285 ) 1,539 Developed technology 20,500 (15,280 ) 5,220 20,881 (12,569 ) 8,312 Acquisition intangible assets, net $ 47,017 $ (31,199 ) $ 15,818 $ 47,509 $ (26,302 ) $ 21,207 As of June 30, 2021 and December 31, 2020, capitalized internal-use software consisted of the following: (in thousands) June 30, 2021 December 31, 2020 Gross capitalized internal-use software $ 56,380 $ 50,833 Less: Accumulated amortization (27,229 ) (21,371 ) Capitalized internal-use software, net $ 29,151 $ 29,462
Schedule of Carrying Amount of Goodwill	The changes in the carrying amount of goodwill were as follows (in thousands): Balance as of December 31, 2020 $ 468,764 Foreign currency translation (2,036 ) Balance as of June 30, 2021 $ 466,728
Summary of Future Amortization Expense	As of June 30, 2021, future amortization expense by year is expected to be as follows: (in thousands) Capitalized internal-use software, net Acquisition intangible assets, net Remainder of 2021 $ 5,458 $ 4,966 2022 7,397 5,076 2023 2,018 1,920 2024 68 1,667 2025 — 1,389 Thereafter — 800 Total amortization expense $ 14,941 $ 15,818

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Stock Option Activity	The following is a summary of stock option activity for the current year period: Stock Options Number of Shares Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) Weighted Average Remaining Contractual Term (in years) Outstanding at December 31, 2020 15,100,142 $ 16.07 $ 143,156 6.9 Granted 2,636,878 $ 21.77 Exercised (1,229,180 ) $ 14.45 Forfeited (774,324 ) $ 19.35 Expired (81,383 ) $ 19.49 Outstanding, vested and expected to vest at June 30, 2021 15,652,133 $ 16.98 $ 67,395 6.8 Vested and exercisable at June 30, 2021 10,668,302 $ 15.68 $ 58,283 5.9
Summary of Estimated Fair Value of Stock Options Granted Using Weighted-average Assumptions	Except for the Executive Option Grant discussed above, the Company used the Black-Scholes-Merton option pricing model to estimate the fair value of stock options granted using the following weighted-average assumptions: Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Expected life (in years) 6.2 6.2 5.8 5.8 Risk-free interest rate 1.2% 0.5% 0.8% 1.4% Volatility 51% 52% 51% 48% Dividend yield —% —% —% —% Fair value of common stock $18.39 $19.24 $21.70 $21.15
Summary of Estimated Fair Value of ESPP Purchase Rights Granted Using Weighted-average Assumptions	The Company used the Black-Scholes-Merton option pricing model to estimate the fair value of ESPP purchase rights granted using the following weighted-average assumptions: Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Expected life (in years) 1.3 1.3 1.3 1.3 Risk-free interest rate 0.1% 0.2% 0.1% 0.2% Volatility 53% 58% 53% 58% Dividend yield —% —% —% —% Fair value of common stock $19.12 $19.81 $19.12 $19.81
Summary of Stock-based Compensation Expense Recognized in Financial Statements	Stock-based compensation expense recognized in the condensed consolidated financial statements is as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Cost of revenue $ 1,580 $ 1,047 $ 3,062 $ 2,007 Research and development 10,313 7,496 19,810 13,953 Sales and marketing 6,414 4,841 12,192 9,184 General and administrative 7,266 6,087 14,108 11,829 Stock-based compensation expense, net of amounts capitalized 25,573 19,471 49,172 36,973 Capitalized stock-based compensation expense 577 710 1,136 1,486 Stock-based compensation expense $ 26,150 $ 20,181 $ 50,308 $ 38,459
Summary of Unamortized Stock-based Compensation	As of June 30, 2021, unamortized stock-based compensation was as follows: Unrecognized stock-based compensation (in thousands) Weighted average vesting period (in years) Restricted stock units $ 140,150 2.4 Stock options 41,763 2.3 Restricted stock awards 5,872 2.3 ESPP 7,127 1.9 Total unrecognized stock-based compensation $ 194,912
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Restricted Stock Units and Restricted Stock Awards	The following is a summary of restricted stock units for the current year period: Restricted Stock Units Number of Shares Weighted Average Grant-Date Fair Value Weighted Average Remaining Contractual Term (in years) Unvested at December 31, 2020 7,000,855 $ 17.72 1.1 Granted 3,279,068 $ 25.56 Vested (1,993,215 ) $ 17.83 Forfeited/cancelled (981,563 ) $ 19.84 Unvested at June 30, 2021 7,305,145 $ 20.93 1.2
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Restricted Stock Units and Restricted Stock Awards	The following is a summary of restricted stock awards for the current year period: Restricted Stock Awards Number of Shares Weighted Average Grant-Date Fair Value Weighted Average Remaining Contractual Term (in years) Unvested at December 31, 2020 102,460 $ 18.30 1.2 Granted 274,417 $ 26.89 Vested (51,619 ) $ 21.21 Forfeited/cancelled (64,823 ) $ 26.89 Unvested at June 30, 2021 260,435 $ 24.64 2.1

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Schedule of Operating Lease Costs	The Company’s operating lease costs were as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2021 2020 2021 2020 Operating lease cost (gross lease expense) $ 3,253 $ 3,414 $ 6,644 $ 6,878 Variable lease costs 1,106 1,414 2,152 3,017 Sublease income (including reimbursed expenses) 1,309 1,162 2,565 2,579
Schedule of Maturities of Operating Lease Liabilities and Sublease Income	As of June 30, 2021, maturities of operating lease liabilities and sublease income, by year are as follows: (in thousands) Operating Lease Payments Sublease Income Remainder of 2021 $ 7,449 $ (1,904 ) 2022 14,874 (1,481 ) 2023 14,399 (1,101 ) 2024 13,794 — 2025 13,552 — Thereafter 42,342 — Gross lease payments (income) $ 106,410 $ (4,486 ) Less: Imputed interest 24,920 Less: Tenant improvement receivables 456 Total operating lease liabilities $ 81,034

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2021
Commitments And Contingencies Disclosure [Abstract]
Schedule of Non-Cancelable Purchase Commitments	The Company enters into commitments under non-cancelable purchase orders for the procurement of goods and services in the ordinary course of business. As of June 30, 2021, expected payments under such commitments are as follows (in thousands): Remainder of 2021 $ 6,811 2022 14,793 2023 10,282 2024 2,115 Total purchase commitments $ 34,001

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Schedule of Carrying Values of Debt	As of June 30, 2021 and December 31, 2020 the carrying values of debt were as follows: June 30, 2021 December 31, 2020 Issuance date Maturity date Amount (in thousands) Effective Interest Rate Amount (in thousands) Effective Interest Rate 2018 Refinancing Facility Agreement October 2018 October 2025 $ 213,950 3.8% - 3.9% $ 215,050 3.9% - 5.4% Less: Unamortized issuance discount and issuance costs, net 1,284 1,434 Less: Debt, current 1,900 1,900 Debt, non-current $ 210,766 $ 211,716
Schedule of Future Minimum Payment Obligations of Principal Amounts Due	Principal and interest payments are due quarterly. As of June 30, 2021, future minimum payment obligations of principal amounts due by year under the 2018 Credit Facility were as follows (in thousands): Remainder of 2021 $ 1,100 2022 2,200 2023 2,200 2024 2,200 2025 206,250 Total principal outstanding $ 213,950

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	6 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended June 30, Six Months Ended June 30, (in thousands, except per share amounts) 2021 2020 2021 2020 Numerator: Net loss $ (29,237 ) $ (22,924 ) $ (58,884 ) $ (47,174 ) Denominator: Weighted-average shares outstanding - basic and diluted 146,242 138,777 145,467 137,844 Net loss per common share - basic and diluted: $ (0.20 ) $ (0.17 ) $ (0.40 ) $ (0.34 )

Company Overview and Basis of_2

Company Overview and Basis of Presentation - Business - Additional Information (Details)	6 Months Ended
	Jun. 30, 2021Product
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Number of major product pillars offering SaaS feedback solutions	3

Company Overview and Basis of_3

Company Overview and Basis of Presentation - Segment Information - Additional Information (Details)	6 Months Ended
	Jun. 30, 2021Segment
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Number of operating segment	1

Company Overview and Basis of_4

Company Overview and Basis of Presentation - Related Party Transactions - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Related party expenses	$ 0.9	$ 1	$ 1.7	$ 2

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Components of Other Non-Operating (Income) Expense Recognized in Condensed Consolidated Financial Statements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Nonoperating Income Expense [Abstract]
Interest Income	$ (129)	$ (72)	$ (263)	$ (479)
Foreign currency (gains) losses, net	75	166	449	344
Gain on sale of a private company investment	0	0	0	(1,001)
Other (income) expense, net	(65)	8	10	2
Other non-operating (income) expense, net	$ (119)	$ 102	$ 196	$ (1,134)

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Additional Information (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Accounting Policies [Abstract]
Earn-out payment received	$ 1

Revenue and Deferred Revenue -

Revenue and Deferred Revenue - Summary of Disaggregated Revenue by Sales Channel (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation Of Revenue [Line Items]
Revenue	$ 109,392	$ 90,941	$ 211,690	$ 179,206
Self-serve Revenue
Disaggregation Of Revenue [Line Items]
Revenue	75,462	65,398	146,574	128,505
Enterprise Revenue
Disaggregation Of Revenue [Line Items]
Revenue	$ 33,930	$ 25,543	$ 65,116	$ 50,701

Revenue and Deferred Revenue _2

Revenue and Deferred Revenue - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue From Contract With Customer [Abstract]
Deferred revenue, revenue recognized	$ 80.5	$ 65.1	$ 125.5	$ 105.5

Revenue and Deferred Revenue _3

Revenue and Deferred Revenue - Additional Information (Details 1) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-04-01 $ in Millions	Jun. 30, 2021USD ($)
Disaggregation Of Revenue [Line Items]
Revenue, unsatisfied performance obligation	$ 221.6
Performance obligation, expected timing of satisfaction, period	12 months

Geographical Information - Sche

Geographical Information - Schedule of Percentage of Revenue by Geographic Area (Details) - Geographic Concentration Risk - Revenue	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Percentage of revenue by geographic area	64.00%	65.00%	64.00%	65.00%
Rest of World
Revenues From External Customers And Long Lived Assets [Line Items]
Percentage of revenue by geographic area	36.00%	35.00%	36.00%	35.00%

Cash and Cash Equivalents - Sum

Cash and Cash Equivalents - Summary of Reconciliation of the Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Cash And Cash Equivalents [Abstract]
Cash and cash equivalents	$ 283,199	$ 224,390
Restricted cash included in prepaid expenses and other current assets	$ 488	$ 224
Restricted Cash, Current, Asset, Statement of Financial Position [Extensible List]	Prepaid expenses and other current assets	Prepaid expenses and other current assets
Restricted cash included in other assets	$ 325	$ 0
Restricted Cash, Noncurrent, Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Total cash, cash equivalents and restricted cash	$ 284,012	$ 224,614	$ 177,806	$ 131,683

Cash and Cash Equivalents - Add

Cash and Cash Equivalents - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Cash And Cash Equivalents [Abstract]
Cash in transit for credit and debit card transactions	$ 3.2	$ 1.6

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair value of debt	$ 212.3	$ 214.5

Property and Equipment - Schedu

Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 80,565	$ 80,793
Less: Accumulated depreciation	(68,549)	(61,869)
Property and equipment, net	12,016	18,924
Computer Equipment
Property Plant And Equipment [Line Items]
Gross property and equipment	15,668	15,770
Leasehold Improvements
Property Plant And Equipment [Line Items]
Gross property and equipment	54,333	54,079
Furniture, Fixtures, and Other Assets
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 10,564	$ 10,944

Property and Equipment - Additi

Property and Equipment - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Property Plant And Equipment [Abstract]
Depreciation expense	$ 3.4	$ 4.2	$ 7	$ 8.6

Intangible Assets and Goodwil_2

Intangible Assets and Goodwill - Schedule of Intangible Assets, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Acquisition intangible assets, net, Gross Carrying Amount	$ 47,017	$ 47,509
Acquisition intangible assets, net, Accumulated Amortization	(31,199)	(26,302)
Acquisition intangible assets, net, Net Carrying Amount	15,818	21,207
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Acquisition intangible assets, net, Gross Carrying Amount	23,734	23,804
Acquisition intangible assets, net, Accumulated Amortization	(14,412)	(12,448)
Acquisition intangible assets, net, Net Carrying Amount	9,322	11,356
Trade Name
Finite Lived Intangible Assets [Line Items]
Acquisition intangible assets, net, Gross Carrying Amount	2,783	2,824
Acquisition intangible assets, net, Accumulated Amortization	(1,507)	(1,285)
Acquisition intangible assets, net, Net Carrying Amount	1,276	1,539
Developed Technology
Finite Lived Intangible Assets [Line Items]
Acquisition intangible assets, net, Gross Carrying Amount	20,500	20,881
Acquisition intangible assets, net, Accumulated Amortization	(15,280)	(12,569)
Acquisition intangible assets, net, Net Carrying Amount	$ 5,220	$ 8,312

Intangible Assets and Goodwil_3

Intangible Assets and Goodwill - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Intangible Assets And Goodwill [Line Items]
Amortization expense	$ 2,594	$ 3,358	$ 5,217	$ 6,726
Amortization expense related to capitalized internal-use software	3,000	$ 3,600	5,900	$ 7,300
Capitalized internal-use software, net	29,151		29,151		$ 29,462
Capitalized Internal-Use Software Net in Development Phase
Intangible Assets And Goodwill [Line Items]
Capitalized internal-use software, net	$ 14,200		$ 14,200

Intangible Assets and Goodwil_4

Intangible Assets and Goodwill - Schedule of Carrying Amount of Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Beginning balance	$ 468,764
Foreign currency translation	(2,036)
Ending Balance	$ 466,728

Intangible Assets and Goodwil_5

Intangible Assets and Goodwill - Schedule of Capitalized Internal-Use Software (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Capitalized Computer Software Net [Abstract]
Gross capitalized internal-use software	$ 56,380	$ 50,833
Less: Accumulated amortization	(27,229)	(21,371)
Capitalized internal-use software, net	$ 29,151	$ 29,462

Intangible Assets and Goodwil_6

Intangible Assets and Goodwill - Summary of Future Amortization Expense (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Acquisition intangible assets, net, Net Carrying Amount	$ 15,818	$ 21,207
Capitalized Internal-Use Software, Net
Finite Lived Intangible Assets [Line Items]
Remainder of 2021	5,458
2022	7,397
2023	2,018
2024	68
2025	0
Thereafter	0
Acquisition intangible assets, net, Net Carrying Amount	14,941
Acquisition Intangible Assets, Net
Finite Lived Intangible Assets [Line Items]
Remainder of 2021	4,966
2022	5,076
2023	1,920
2024	1,667
2025	1,389
Thereafter	800
Acquisition intangible assets, net, Net Carrying Amount	$ 15,818

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Details) $ / shares in Units, $ in Thousands	Feb. 16, 2021USD ($)$ / sharesshares	Jun. 30, 2021USD ($)$ / sharesshares	Jun. 30, 2020USD ($)$ / sharesshares	Jun. 30, 2021USD ($)offering_period$ / sharesshares	Jun. 30, 2020USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option granted | shares				2,636,878
Exercise price | $ / shares				$ 21.77
Allocated share-based compensation expense		$ 25,573	$ 19,471	$ 49,172	$ 36,973
Fair value assumptions, method used				Black-Scholes-Merton option pricing model
Aggregate proceeds from employee stock purchase plan				$ 3,873	3,082
General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense		7,266	$ 6,087	14,108	$ 11,829
Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option granted | shares	580,911
Exercise price | $ / shares	$ 21.99
Grant-date fair value of award	$ 5,700
Chief Executive Officer | General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense		1,100		$ 1,600
2018 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Offering period				24 months
Number of offering periods | offering_period				4
Length of purchase period				6 months
Employee share purchase price percentage				85.00%
Modification charges under the reset provision		$ 2,000		$ 2,000
Time-Based Awards | Equity Incentive Plans | New Hires
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				4 years
Time-Based Awards | Equity Incentive Plans | Existing Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Maximum | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based payment award derived service period	3 years
Maximum | Equity Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period				10 years
Minimum [Member] | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based payment award derived service period	9 months
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued under employee stock purchase plan, shares | shares		246,000	268,000	246,000	268,000
Common Stock | 2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant | shares		17,129,162		17,129,162
Common Stock | 2018 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued under employee stock purchase plan, shares | shares		245,914	267,757	245,914	267,757
Weighted average purchase price | $ / shares		$ 15.75	$ 11.51	$ 15.75	$ 11.51
Aggregate proceeds from employee stock purchase plan		$ 3,900	$ 3,100	$ 3,900	$ 3,100
Number of shares available for issuance | shares		5,416,004		5,416,004

Employee Benefit Plans - Summar

Employee Benefit Plans - Summary of Restricted Stock Units (Details) - Restricted Stock Units - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Number of Shares
Unvested, Beginning balance	7,000,855
Granted	3,279,068
Vested	(1,993,215)
Forfeited/cancelled	(981,563)
Unvested, Ending balance	7,305,145	7,000,855
Weighted Average Grant-Date Fair Value
Unvested, Beginning balance	$ 17.72
Granted	25.56
Vested	17.83
Forfeited/cancelled	19.84
Unvested, Ending balance	$ 20.93	$ 17.72
Weighted Average Remaining Contractual Term (in years)
Unvested, Weighted Average Remaining Contractual Term	1 year 2 months 12 days	1 year 1 month 6 days

Employee Benefit Plans - Summ_2

Employee Benefit Plans - Summary of Stock Option Activity (Details) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021USD ($)$ / sharesshares	Dec. 31, 2020USD ($)$ / sharesshares
Number of Shares
Outstanding, vested and expected to vest, Beginning balance | shares	15,100,142
Granted | shares	2,636,878
Exercised | shares	(1,229,180)
Forfeited | shares	(774,324)
Expired | shares	(81,383)
Outstanding, vested and expected to vest, Ending balance | shares	15,652,133	15,100,142
Vested and exercisable at June 30, 2021 | shares	10,668,302
Weighted Average Exercise Price
Outstanding, vested and expected to vest, Beginning balance | $ / shares	$ 16.07
Granted | $ / shares	21.77
Exercised | $ / shares	14.45
Forfeited | $ / shares	19.35
Expired | $ / shares	19.49
Outstanding, vested and expected to vest, Ending balance | $ / shares	16.98	$ 16.07
Vested and exercisable at June 30, 2021 | $ / shares	$ 15.68
Outstanding, vested and expected to vest, Aggregate Intrinsic Value, Beginning balance | $	$ 67,395	$ 143,156
Vested and exercisable at June 30, 2021 | $	$ 58,283
Outstanding, vested and expected to vest, Weighted Average Remaining Contractual Term	6 years 9 months 18 days	6 years 10 months 24 days
Vested and exercisable, Weighted Average Remaining Contractual Term	5 years 10 months 24 days

Employee Benefit Plans - Summ_3

Employee Benefit Plans - Summary of Restricted Stock Awards (Details) - Restricted Stock Awards - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Number of Shares
Unvested, Beginning balance	102,460
Granted	274,417
Vested	(51,619)
Forfeited/cancelled	(64,823)
Unvested, Ending balance	260,435	102,460
Weighted Average Grant-Date Fair Value
Unvested, Beginning balance	$ 18.30
Granted	26.89
Vested	21.21
Forfeited/cancelled	26.89
Unvested, Ending balance	$ 24.64	$ 18.30
Weighted Average Remaining Contractual Term (in years)
Unvested, Weighted Average Remaining Contractual Term	2 years 1 month 6 days	1 year 2 months 12 days

Employee Benefit Plans - Summ_4

Employee Benefit Plans - Summary of Estimated Fair Value of Stock Options Granted Using Weighted-average Assumptions (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Compensation Related Costs [Abstract]
Expected life (in years)	6 years 2 months 12 days	6 years 2 months 12 days	5 years 9 months 18 days	5 years 9 months 18 days
Risk-free interest rate	1.20%	0.50%	0.80%	1.40%
Volatility	51.00%	52.00%	51.00%	48.00%
Dividend yield			0.00%	0.00%
Fair value of common stock	$ 18.39	$ 19.24	$ 21.70	$ 21.15

Employee Benefit Plans - Summ_5

Employee Benefit Plans - Summary of Estimated Fair Value of ESPP Purchase Rights Granted Using Weighted-average Assumptions (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (in years)	6 years 2 months 12 days	6 years 2 months 12 days	5 years 9 months 18 days	5 years 9 months 18 days
Risk-free interest rate	1.20%	0.50%	0.80%	1.40%
Volatility	51.00%	52.00%	51.00%	48.00%
Dividend yield			0.00%	0.00%
2018 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (in years)	1 year 3 months 18 days	1 year 3 months 18 days	1 year 3 months 18 days	1 year 3 months 18 days
Risk-free interest rate	0.10%	0.20%	0.10%	0.20%
Volatility	53.00%	58.00%	53.00%	58.00%
Dividend yield	0.00%	0.00%	0.00%	0.00%
Fair value of common stock	$ 19.12	$ 19.81	$ 19.12	$ 19.81

Employee Benefit Plans - Summ_6

Employee Benefit Plans - Summary of Stock-based Compensation Expense Recognized in Financial Statements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, net of amounts capitalized	$ 25,573	$ 19,471	$ 49,172	$ 36,973
Capitalized stock-based compensation expense	577	710	1,136	1,486
Stock-based compensation expense	26,150	20,181	50,308	38,459
Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, net of amounts capitalized	1,580	1,047	3,062	2,007
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, net of amounts capitalized	10,313	7,496	19,810	13,953
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, net of amounts capitalized	6,414	4,841	12,192	9,184
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, net of amounts capitalized	$ 7,266	$ 6,087	$ 14,108	$ 11,829

Employee Benefit Plans - Unamor

Employee Benefit Plans - Unamortized Stock-based Compensation (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation (in thousands)	$ 194,912
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation (in thousands)	$ 140,150
Weighted average vesting period (in years)	2 years 4 months 24 days
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation (in thousands)	$ 41,763
Weighted average vesting period (in years)	2 years 3 months 18 days
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation (in thousands)	$ 5,872
Weighted average vesting period (in years)	2 years 3 months 18 days
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation (in thousands)	$ 7,127
Weighted average vesting period (in years)	1 year 10 months 24 days

Employee Benefit Plans - 401(k)

Employee Benefit Plans - 401(k) Plan - Additional Information (Details) - United States - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Defined Contribution Plan Disclosure [Line Items]
Matching contribution of deferrals for eligible employees			25.00%
Matching contribution compensation expense	$ 1.2	$ 1	$ 2.6	$ 2.2

Leases - Additional Information

Leases - Additional Information (Details)	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease expiration year	2028
Operating lease, Weighted average remaining operating lease term	7 years 1 month 6 days	7 years 7 months 6 days
Operating lease, weighted average discount rate, percent	7.40%	7.50%

Leases - Schedule of Operating

Leases - Schedule of Operating Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating lease cost (gross lease expense)	$ 3,253	$ 3,414	$ 6,644	$ 6,878
Variable lease costs	1,106	1,414	2,152	3,017
Sublease income (including reimbursed expenses)	$ 1,309	$ 1,162	$ 2,565	$ 2,579

Leases - Schedule of Maturities

Leases - Schedule of Maturities of Operating Lease Liabilities and Sublease Income (Details) $ in Thousands	Jun. 30, 2021USD ($)
Operating Leases Payments
Remainder of 2021	$ 7,449
2022	14,874
2023	14,399
2024	13,794
2025	13,552
Thereafter	42,342
Gross lease payments (income)	106,410
Less: Imputed interest	24,920
Less: Tenant improvement receivables	456
Total operating lease liabilities	81,034
Sublease Income
Remainder of 2021	(1,904)
2022	(1,481)
2023	(1,101)
2024	0
2025	0
Thereafter	0
Gross lease payments (income)	$ (4,486)

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Non-Cancelable Purchase Commitments (Details) $ in Thousands	Jun. 30, 2021USD ($)
Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract]
Remainder of 2021	$ 6,811
2022	14,793
2023	10,282
2024	2,115
Total purchase commitments	$ 34,001

Commitments and Contingencies_2

Commitments and Contingencies - Additional Information (Details) $ in Millions	Jun. 30, 2021USD ($)
San Mateo Facility
Other Commitments [Line Items]
Standby letter of credit issued	$ 2.5

Debt - Schedule of Carrying Val

Debt - Schedule of Carrying Values of Debt (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total debt	$ 213,950
Less: Unamortized issuance discount and issuance costs, net	1,284	$ 1,434
Debt, current	1,900	1,900
Debt, non-current	$ 210,766	211,716
2018 Refinancing Facility Agreement
Debt Instrument [Line Items]
Issuance date	Oct. 31, 2018
Maturity date	Oct. 10, 2025
Total debt	$ 213,950	$ 215,050
2018 Refinancing Facility Agreement | Minimum
Debt Instrument [Line Items]
Effective Interest Rate	3.80%	3.90%
2018 Refinancing Facility Agreement | Maximum
Debt Instrument [Line Items]
Effective Interest Rate	3.90%	5.40%

Debt - Additional Information (

Debt - Additional Information (Details) - 2018 Credit Facility - USD ($)	1 Months Ended	6 Months Ended
	Oct. 31, 2018	Jun. 30, 2021
Debt Instrument [Line Items]
Debt instrument, due date		Oct. 10, 2025
Line of credit facility, remaining borrowing capacity		$ 72,500,000
Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount	$ 220,000,000
Debt instrument, quarterly principal payments	$ 550,000
Debt instrument, due date	Oct. 10, 2025
Domestic Line of Credit
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 75,000,000
Debt instrument, due date	Oct. 10, 2023
Alternate Base Rate | Term Loan
Debt Instrument [Line Items]
Applicable margin	2.75%
Alternate Base Rate | Domestic Line of Credit | Minimum
Debt Instrument [Line Items]
Applicable margin	0.75%
Alternate Base Rate | Domestic Line of Credit | Maximum
Debt Instrument [Line Items]
Applicable margin	1.50%
Eurocurrency Rate | Term Loan
Debt Instrument [Line Items]
Applicable margin	3.75%
Eurocurrency Rate | Domestic Line of Credit | Minimum
Debt Instrument [Line Items]
Applicable margin	1.75%
Eurocurrency Rate | Domestic Line of Credit | Maximum
Debt Instrument [Line Items]
Applicable margin	2.50%

Debt - Schedule of Future Minim

Debt - Schedule of Future Minimum Payment Obligations of Principal Amounts Due (Details) $ in Thousands	Jun. 30, 2021USD ($)
Debt Disclosure [Abstract]
Remainder of 2021	$ 1,100
2022	2,200
2023	2,200
2024	2,200
2025	206,250
Total principal outstanding	$ 213,950

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income tax provision (benefit)	$ 336,000	$ (156,000)	$ 554,000	$ (15,000)

Net Loss Per Share - Computatio

Net Loss Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net loss	$ (29,237)	$ (22,924)	$ (58,884)	$ (47,174)
Denominator:
Weighted-average shares outstanding - basic and diluted	146,242	138,777	145,467	137,844
Net loss per common share - basic and diluted:	$ (0.20)	$ (0.17)	$ (0.40)	$ (0.34)

Net Loss Per Share - Additional

Net Loss Per Share - Additional Information (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of net loss per share	24.1	25.4	24.1	25.4