ZipRecruiter (ZIP) 10-Q 12 Nov 21 2021 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2021	Nov. 04, 2021
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-40406
Entity Registrant Name	ZIPRECRUITER, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-2976158
Entity Address, Address Line One	604 Arizona Ave.
Entity Address, City or Town	Santa Monica,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90401
City Area Code	(877)
Local Phone Number	252-1062
Title of 12(b) Security	Class A common stock, $0.00001 par value per share
Trading Symbol	ZIP
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Central Index Key	0001617553
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		86,396,592
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		30,375,749

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets
Cash	$ 204,881	$ 114,539
Accounts receivable, net of allowances of $3,769 and $3,933 at September 30, 2021 and December 31, 2020, respectively	43,502	21,036
Prepaid expenses and other assets	11,066	5,462
Deferred commissions, current portion	4,397	3,727
Total current assets	263,846	144,764
Property and equipment, net	9,096	5,043
Operating lease right-of-use assets	18,387	22,500
Internal use software, net	12,810	11,191
Deferred commissions, net of current portion	3,718	3,712
Goodwill	1,724	1,724
Deferred tax assets, net	41,355	23,083
Other assets	1,233	112
Total assets	352,169	212,129
Current liabilities
Accounts payable	32,458	13,509
Accrued expenses	67,466	38,842
Deferred revenue	25,414	15,112
Deferred payroll tax liability, current portion	1,677	1,677
Operating lease liabilities, current portion	5,684	1,669
Other liabilities	132	646
Total current liabilities	132,831	71,455
Operating lease liabilities, net of current portion	19,856	25,130
Convertible notes and accrued interest with related parties	0	25,371
Deferred payroll tax liability, net of current portion	1,828	1,818
Other liabilities	1,625	1,795
Total liabilities	156,140	125,569
Commitments and contingencies (Note 8)
Redeemable convertible preferred stock
Total redeemable convertible preferred stock	0	136,856
Stockholders' equity (deficit)
Preferred Stock, $0.00001 par value; 50,000 and no shares authorized as of September 30, 2021 and December 31, 2020, respectively; no shares issued and outstanding as September 30, 2021 and December 31, 2020	0	0
Class B treasury stock, 195 shares outstanding as of September 30, 2021 and December 31, 2020	(644)	(644)
Additional paid-in capital	285,445	21,732
Accumulated deficit	(88,773)	(71,384)
Total stockholders' equity (deficit)	196,029	(50,296)
Total liabilities, redeemable convertible preferred stock, and stockholders' equity (deficit)	$ 352,169	212,129
Common stock, par value (in dollars per share)	$ 0.00001
Series A Preferred Stock
Redeemable convertible preferred stock
Total redeemable convertible preferred stock	$ 0	87,118
Series B Preferred Stock
Redeemable convertible preferred stock
Total redeemable convertible preferred stock	0	49,738
Common Class A
Stockholders' equity (deficit)
Common stock	$ 1	$ 0
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common Class B
Stockholders' equity (deficit)
Common stock	$ 0	$ 0
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets
Accounts receivable, allowance for credit loss, current	$ 3,769	$ 3,933
Stockholders' equity (deficit)
Preferred stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Preferred stock, authorized (in shares)	50,000,000	0
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.00001
Common stock, authorized (in shares)	1,450,000,000
Treasury stock (in shares)	195,000	195,000
Series A Preferred Stock
Redeemable convertible preferred stock
Redeemable convertible preferred stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Redeemable convertible preferred stock, authorized (in shares)	0	2,271,000
Redeemable convertible preferred stock, issued (in shares)	0	2,271,000
Redeemable convertible preferred stock, outstanding (in shares)	0	2,271,000
Series B Preferred Stock
Redeemable convertible preferred stock
Redeemable convertible preferred stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Redeemable convertible preferred stock, authorized (in shares)	0	6,151,000
Redeemable convertible preferred stock, issued (in shares)	0	6,031,000
Redeemable convertible preferred stock, outstanding (in shares)	0	6,031,000
Common Class A
Stockholders' equity (deficit)
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, authorized (in shares)	700,000,000	0
Common stock, issued (in shares)	84,864,000	0
Common stock, outstanding (in shares)	84,864,000	0
Common Class B
Stockholders' equity (deficit)
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, authorized (in shares)	700,000,000	137,800,000
Common stock, issued (in shares)	31,771,000	78,283,000
Common stock, outstanding (in shares)	31,576,000	78,088,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenue	$ 212,672	$ 102,851	$ 521,004	$ 303,798
Cost of revenue	22,277	12,949	59,838	39,261
Gross profit	190,395	89,902	461,166	264,537
Operating expenses
Sales and marketing	112,178	41,713	289,825	148,662
Research and development	27,155	16,863	82,079	52,395
General and administrative	33,094	8,232	123,145	29,512
Total operating expenses	172,427	66,808	495,049	230,569
Income (loss) from operations	17,968	23,094	(33,883)	33,968
Other income (expense)
Interest expense	(221)	(179)	(696)	(825)
Sublease income	0	226	151	783
Other income (expense), net	(154)	152	(100)	(60)
Total other income (expense), net	(375)	199	(645)	(102)
Income (loss) before income taxes	17,593	23,293	(34,528)	33,866
Income tax expense (benefit)	(4,467)	187	(17,139)	519
Net income (loss)	22,060	23,106	(17,389)	33,347
Less: Accretion of redeemable convertible preferred stock	0	(975)	(1,480)	(2,886)
Less: Undistributed earnings attributable to participating securities	0	(5,129)	0	(7,091)
Net income (loss) attributable to Class A and Class B common stockholders	$ 22,060	$ 17,002	$ (18,869)	$ 23,370
Net income (loss) per share attributable to Class A and Class B common stockholders:
Basic (in dollars per share)	$ 0.19	$ 0.21	$ (0.19)	$ 0.29
Diluted (in dollars per share)	$ 0.17	$ 0.19	$ (0.19)	$ 0.26
Weighted average shares used in computing net income (loss) per share attributable to Class A and Class B common stockholders:
Basic (in shares)	115,372	80,218	97,159	79,775
Diluted (in shares)	126,474	95,844	97,159	93,137

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Changes in Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Conversion of redeemable convertible preferred stock to common stock	Conversion of convertible notes with related parties to common stock	Conversion of Class B stock to Class A stock	Cumulative-effect of accounting change adopted as of January 1, 2020	Common Stock	Treasury Stock	Additional Paid-in Capital	Additional Paid-in CapitalConversion of redeemable convertible preferred stock to common stock	Additional Paid-in CapitalConversion of convertible notes with related parties to common stock	Additional Paid-in CapitalCumulative-effect of accounting change adopted as of January 1, 2020	Retained Earnings	Retained EarningsCumulative-effect of accounting change adopted as of January 1, 2020	Series A Preferred Stock	Series B Preferred Stock	Common Class ACommon Stock	Common Class ACommon StockConversion of Class B stock to Class A stock	Common Class BCommon Stock	Common Class BCommon StockConversion of redeemable convertible preferred stock to common stock	Common Class BCommon StockConversion of convertible notes with related parties to common stock	Common Class BCommon StockConversion of Class B stock to Class A stock
Beginning balance (in shares) at Dec. 31, 2019														2,271,000	6,031,000
Beginning balance at Dec. 31, 2019														$ 83,375	$ 49,598
Redeemable Convertible Preferred Stock
Accretion of redeemable convertible preferred stock														$ 920	$ 35
Ending balance (in shares) at Mar. 31, 2020														2,271,000	6,031,000
Ending balance at Mar. 31, 2020														$ 84,295	$ 49,633
Beginning balance (in shares) at Dec. 31, 2019							(195,000)									0		79,583,000
Beginning balance at Dec. 31, 2019	$ (122,311)				$ 0		$ (644)	$ 35,339			$ 426	$ (157,006)	$ (426)			$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accretion of redeemable convertible preferred stock	(955)							(955)
Issuance of common stock upon exercise of options (in shares)						572,000
Issuance of common stock upon exercise of options	305							305
Stock-based compensation	1,994							1,994
Capital contribution (in shares)						(213,000)
Net income (loss)	(11,082)											(11,082)
Ending balance (in shares) at Mar. 31, 2020							(195,000)									0		79,942,000
Ending balance at Mar. 31, 2020	(132,049)						$ (644)	37,109				(168,514)				$ 0		$ 0
Beginning balance (in shares) at Dec. 31, 2019														2,271,000	6,031,000
Beginning balance at Dec. 31, 2019														$ 83,375	$ 49,598
Ending balance (in shares) at Sep. 30, 2020														2,271,000	6,031,000
Ending balance at Sep. 30, 2020														$ 86,156	$ 49,703
Beginning balance (in shares) at Dec. 31, 2019							(195,000)									0		79,583,000
Beginning balance at Dec. 31, 2019	(122,311)				$ 0		$ (644)	35,339			$ 426	(157,006)	$ (426)			$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	33,347
Ending balance (in shares) at Sep. 30, 2020							(195,000)									0		80,548,000
Ending balance at Sep. 30, 2020	(85,680)						$ (644)	39,049				(124,085)				$ 0		$ 0
Beginning balance (in shares) at Mar. 31, 2020														2,271,000	6,031,000
Beginning balance at Mar. 31, 2020														$ 84,295	$ 49,633
Redeemable Convertible Preferred Stock
Accretion of redeemable convertible preferred stock														$ 921	$ 35
Ending balance (in shares) at Jun. 30, 2020														2,271,000	6,031,000
Ending balance at Jun. 30, 2020														$ 85,216	$ 49,668
Beginning balance (in shares) at Mar. 31, 2020							(195,000)									0		79,942,000
Beginning balance at Mar. 31, 2020	(132,049)						$ (644)	37,109				(168,514)				$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accretion of redeemable convertible preferred stock	(956)							(956)
Issuance of common stock upon exercise of options (in shares)						672,000
Issuance of common stock upon exercise of options	699							699
Stock-based compensation	1,386							1,386
Capital contribution (in shares)						(213,000)
Net income (loss)	21,323											21,323
Ending balance (in shares) at Jun. 30, 2020							(195,000)									0		80,401,000
Ending balance at Jun. 30, 2020	(109,597)						$ (644)	38,238				(147,191)				$ 0		$ 0
Redeemable Convertible Preferred Stock
Accretion of redeemable convertible preferred stock														$ 940	$ 35
Ending balance (in shares) at Sep. 30, 2020														2,271,000	6,031,000
Ending balance at Sep. 30, 2020														$ 86,156	$ 49,703
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accretion of redeemable convertible preferred stock	(975)							(975)
Issuance of common stock upon exercise of options (in shares)						218,000
Issuance of common stock upon exercise of options	483							483
Stock-based compensation	1,303							1,303
Capital contribution (in shares)						(71,000)
Net income (loss)	23,106											23,106
Ending balance (in shares) at Sep. 30, 2020							(195,000)									0		80,548,000
Ending balance at Sep. 30, 2020	(85,680)						$ (644)	39,049				(124,085)				$ 0		$ 0
Beginning balance (in shares) at Dec. 31, 2020														2,271,000	6,031,000
Beginning balance at Dec. 31, 2020	136,856													$ 87,118	$ 49,738
Redeemable Convertible Preferred Stock
Accretion of redeemable convertible preferred stock														$ 961	$ 36
Ending balance (in shares) at Mar. 31, 2021														2,271,000	6,031,000
Ending balance at Mar. 31, 2021														$ 88,079	$ 49,774
Beginning balance (in shares) at Dec. 31, 2020							(195,000)									0		78,283,000
Beginning balance at Dec. 31, 2020	(50,296)						$ (644)	21,732				(71,384)				$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accretion of redeemable convertible preferred stock	(997)							(997)
Issuance of common stock upon exercise of options (in shares)																		1,965,000
Issuance of common stock upon exercise of options	3,660							3,660
Repurchase and retirement of common stock (in shares)																		(50,000)
Repurchase and retirement of common stock	(450)							(450)
Stock-based compensation	1,290							1,290
Net income (loss)	13,398											13,398
Ending balance (in shares) at Mar. 31, 2021							(195,000)									0		80,198,000
Ending balance at Mar. 31, 2021	(33,395)						$ (644)	25,235				(57,986)				$ 0		$ 0
Beginning balance (in shares) at Dec. 31, 2020														2,271,000	6,031,000
Beginning balance at Dec. 31, 2020	136,856													$ 87,118	$ 49,738
Ending balance (in shares) at Sep. 30, 2021														0	0
Ending balance at Sep. 30, 2021	0													$ 0	$ 0
Beginning balance (in shares) at Dec. 31, 2020							(195,000)									0		78,283,000
Beginning balance at Dec. 31, 2020	$ (50,296)						$ (644)	21,732				(71,384)				$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of options (in shares)	115,000
Net income (loss)	$ (17,389)
Ending balance (in shares) at Sep. 30, 2021							(195,000)									84,864,000		31,771,000
Ending balance at Sep. 30, 2021	196,029						$ (644)	285,445				(88,773)				$ 1		$ 0
Beginning balance (in shares) at Mar. 31, 2021														2,271,000	6,031,000
Beginning balance at Mar. 31, 2021														$ 88,079	$ 49,774
Redeemable Convertible Preferred Stock
Accretion of redeemable convertible preferred stock														$ 466	$ 17
Conversion of redeemable convertible preferred stock to common stock (in shares)														(2,271,000)	(6,031,000)
Conversion of redeemable convertible preferred stock to common stock														$ (88,545)	$ (49,791)
Ending balance (in shares) at Jun. 30, 2021														0	0
Ending balance at Jun. 30, 2021														$ 0	$ 0
Beginning balance (in shares) at Mar. 31, 2021							(195,000)									0		80,198,000
Beginning balance at Mar. 31, 2021	(33,395)						$ (644)	25,235				(57,986)				$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accretion of redeemable convertible preferred stock	(483)							(483)
Conversion of shares (in shares)																	82,714,000		24,202,000	3,085,000	(82,714,000)
Conversion of shares		$ 138,336	$ 25,653	$ 0					$ 138,335	$ 25,653							$ 1		$ 1		$ (1)
Issuance of common stock upon exercise of options (in shares)																		5,282,000
Issuance of common stock upon exercise of options	8,720							8,720
Repurchase and retirement of common stock (in shares)																		(100,000)
Repurchase and retirement of common stock	(2,300)							(2,300)
Vesting of early exercised stock options	97							97
Issuance of common stock upon the vesting and settlement of restricted stock units (in shares)																		2,278,000
Stock-based compensation	65,121							65,121
Net income (loss)	(52,847)											(52,847)
Ending balance (in shares) at Jun. 30, 2021							(195,000)									82,714,000		32,231,000
Ending balance at Jun. 30, 2021	148,902						$ (644)	260,378				(110,833)				$ 1		$ 0
Ending balance (in shares) at Sep. 30, 2021														0	0
Ending balance at Sep. 30, 2021	0													$ 0	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of shares (in shares)																	2,038,000				(2,038,000)
Issuance of common stock upon exercise of options (in shares)																		1,036,000
Issuance of common stock upon exercise of options	2,461							2,461
Vesting of early exercised stock options	99							99
Issuance of common stock upon the vesting and settlement of restricted stock units (in shares)																112,000		542,000
Stock-based compensation	22,507							22,507
Net income (loss)	22,060											22,060
Ending balance (in shares) at Sep. 30, 2021							(195,000)									84,864,000		31,771,000
Ending balance at Sep. 30, 2021	$ 196,029						$ (644)	$ 285,445				$ (88,773)				$ 1		$ 0

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities
Net income (loss)	$ (17,389)	$ 33,347
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Stock-based compensation expense	87,625	4,560
Depreciation and amortization	6,999	7,344
Provision for bad debts	1,296	2,674
Deferred income taxes	(18,272)	0
Non-cash lease expense	4,113	4,121
Amortization of issuance costs for credit facility	106	0
Loss on disposal of property and equipment	23	341
Change in operating assets and liabilities:
Accounts receivable	(23,762)	1,554
Prepaid expenses and other current assets	(6,122)	2,362
Deferred commissions, net	(676)	(1,770)
Other assets	43	130
Accounts payable	18,672	8,583
Accrued expenses and other liabilities	28,056	(4,244)
Deferred revenue	10,312	(1,342)
Deferred payroll taxes	10	2,537
Operating lease liabilities	(1,259)	(3,873)
Net cash provided by operating activities	89,775	56,324
Cash flows from investing activities
Purchases of property and equipment	(5,684)	(1,007)
Capitalized internal use software costs	(5,479)	(5,042)
Net cash used in investing activities	(11,163)	(6,049)
Cash flows from financing activities
Proceeds from term loan	0	10,000
Repayment of term loan	0	(20,000)
Proceeds from revolving line	0	16,500
Repayment of revolving line	0	(16,500)
Proceeds from convertible notes with related parties	0	25,000
Payment of issuance costs for credit facility	(1,270)	0
Repurchase of common stock	(2,750)	0
Proceeds from exercise of stock options	15,750	1,483
Net cash provided by financing activities	11,730	16,483
Net increase in cash	90,342	66,758
Beginning of period	114,539	35,529
End of period	204,881	102,287
Supplemental disclosure of non-cash activities
Capitalized assets included in accounts payable and accrued expenses	1,347	862
Stock-based compensation capitalized for software	1,293	123
In-transit proceeds from exercise of stock options	55	4
Operating lease right-of-use assets obtained in exchange for new operating lease	0	5,787
Accretion of redeemable convertible preferred stock	1,480	2,886
Conversion of redeemable convertible preferred stock	138,336	0
Conversion of convertible notes and accrued interest with related parties	$ 25,653	$ 0

Description of Business

Description of Business	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business ZipRecruiter, Inc. was incorporated in the state of Delaware on June 29, 2010. Hereinafter, ZipRecruiter, Inc. and its wholly owned subsidiaries ZipRecruiter Israel Ltd., ZipRecruiter UK Ltd., and ZipRecruiter Canada Ltd. are collectively referred to as “ZipRecruiter” or the “Company.” The Company is a two-sided marketplace that enables employers and job seekers to connect with one another online to fill job opportunities. Direct Listing On May 14, 2021, the Company’s registration statement related to the direct listing of its Class A common stock on the New York Stock Exchange (“NYSE”) (the “Direct Listing”) was declared effective by the Securities and Exchange Commission (“SEC”) and on May 26, 2021, the Direct Listing was completed and the Company’s Class A common stock commenced trading. Immediately prior to the completion of the Direct Listing, the Company filed its amended and restated certificate of incorporation, which resulted in the creation of Class A common stock and Class B common stock. All existing shares of common stock issued and outstanding or held as treasury stock were reclassified into shares of Class B common stock. In connection with the effectiveness of the Direct Listing, all 2.3 million outstanding shares of Series A Redeemable Convertible Preferred Stock (“Series A preferred stock”) and 6.0 million outstanding shares of Series B Redeemable Convertible Preferred Stock (“Series B preferred stock”) converted into 24.2 million shares of Class B common stock. On May 26, 2021, the Company’s convertible notes with related parties converted into 3.1 million shares of Class B common stock.

Basis of Presentation, Principl

Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies	Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information. Accordingly, certain information and disclosures normally included in consolidated financial statements presented in accordance with U.S. GAAP have been condensed or omitted. The condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. The accompanying condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in the Company’s final prospectus filed with the SEC pursuant to Rule 424(b) under the Securities Act of 1933, as amended, on May 26, 2021 (the “Prospectus”). The consolidated balance sheet as of December 31, 2020 has been derived from the Company’s audited consolidated financial statements. In the opinion of the Company’s management, the accompanying unaudited condensed consolidated financial statements include all adjustments (consisting of normal recurring adjustments) necessary for the fair statement of the condensed consolidated financial statements. There have been no changes in the Company’s accounting policies from those disclosed in its audited consolidated financial statements and the related notes included in the Prospectus. The operating results for the three and nine months ended September 30, 2021 are not necessarily indicative of the results expected for the full year ending December 31, 2021 or any future period. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, and the reported amounts of revenue and expenses during the reporting period. Significant estimates include revenue recognition, estimates relating to the measurement of operating lease right-of-use (“ROU”) assets and operating lease liabilities, determination of the fair value of stock-based awards, valuation of common stock in periods prior to becoming a public company, collectability of accounts receivable, impairment of long-lived assets, including goodwill, carrying value and useful lives of property and equipment and internal-use software, the amortization period for deferred commission costs, and income taxes. By their nature, estimates are subject to an inherent degree of uncertainty and actual results could differ from those estimates. The impact of the Coronavirus pandemic (“COVID-19”) continues to evolve. As a result, many of the Company’s estimates and assumptions require increased judgment and carry a higher degree of variability and volatility. As of the date these condensed consolidated financial statements are issued, the Company is not aware of any specific event or circumstance that would require an update to the Company’s estimates or judgments, or change to the carrying value of the Company’s assets or liabilities. However, these estimates and judgments may change as new events occur and additional information is obtained, which may result in changes being recognized in the consolidated financial statements in future periods. Actual results could differ from those estimates and any such differences may have a material impact on the financial statements. Fair Value Measurements Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Accounting standards describe a fair value hierarchy based on the following three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value: - Level 1 — Quoted prices in active markets for identical assets, liabilities, or funds. - Level 2 — Inputs other than Level 1 that are observable, either directly or indirectly, 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, including accounts receivable, accounts payable, and accrued expenses, approximate fair value because of their short-term maturities. The fair value of the Company’s convertible notes with related parties as of December 31, 2020 was estimated to be approximately $36.9 million, and was based on the value of shares into which the notes convert. The value of the shares represents a Level 3 input in the fair value hierarchy. The convertible notes with related parties converted into shares of Class B common stock in connection with the Direct Listing in May 2021. Certain assets, including goodwill and intangible assets, are also subject to measurement at fair value on a non-recurring basis using Level 3 inputs, but only when they are deemed to be impaired. As of September 30, 2021 and December 31, 2020, no impairments were identified on those assets required to be measured at fair value on a non-recurring basis. Segments and Geographic Information The Company operates as a single operating segment. The Company’s Chief Operating Decision Maker, the CEO, regularly reviews financial information presented on a consolidated basis for purposes of assessing financial performance and allocating resources. Stock-based Compensation for Awards with a Market Condition In April 2021, the Company granted a restricted stock unit (“RSU”) award (the “CEO Performance Award”), which included service, market, and performance based vesting conditions. The fair value of the award is determined using a Monte Carlo simulation model. The associated stock-based compensation is recorded over the requisite service period, using a graded attribution method. The requisite service period is the longer of the service period derived from the Monte Carlo simulation model and the explicit service period the CEO is required to remain employed to vest in the award. The market condition is satisfied upon achieving certain stock price targets for a period following the completion of the Company’s Direct Listing. The CEO Performance Award also contains an implied performance-based vesting condition as the CEO’s ability to earn the award is contingent upon the completion of the Direct Listing. Accordingly, no expense was recognized prior to the completion of the Company’s Direct Listing on May 26, 2021, as vesting was not considered probable for accounting purposes until the Direct Listing occurred. Provided that Ian Siegel continues to be the CEO of the Company, stock-based compensation expense is recognized over the requisite service period, regardless of whether the stock price targets are achieved. If the stock price targets are met sooner than the derived service period, the Company will accelerate the recognition of stock-based compensation expense to reflect the cumulative expense associated with the vested shares. The determination of the fair value of stock-based awards with a market condition is inherently uncertain and subjective and involves the application of valuation models and assumptions requiring the use of judgment. If the Company had made different assumptions, its stock-based compensation expense, and its results of operations for the three and nine months ended September 30, 2021 may have been significantly different. Stock-based Compensation Under the Employee Stock Purchase Plan (ESPP) In August 2021, the Company launched an employee stock purchase plan. The Company estimates the fair value of employee stock purchase rights on the grant date using the Black-Scholes option pricing model. The Company recognizes the resulting fair value over the requisite service period as stock-based compensation expense. Forfeitures are recognized as reduction to stock-based compensation expense as they occur. The Black-Scholes option pricing model requires the Company to make certain assumptions including the fair value of the underlying common stock, the expected term, the expected volatility, the risk-free interest rate and the dividend yield. Recent Accounting Pronouncements Accounting Pronouncements Not Yet Adopted As an “emerging growth company,” the Company is allowed by the Jumpstart Our Business Startups Act to delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies. The Company has elected to use the adoption dates applicable to private companies. As a result, the Company’s financial statements may not be comparable to the financial statements of issuers who are required to comply with the effective date for new or revised accounting standards that are applicable to public companies. In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which replaces the existing model for measuring the allowance for credit losses for financial assets measured at amortized cost (including accounts receivable) to a model that is based on the expected losses rather than incurred losses. Under the new credit loss model, lifetime expected credit losses on such financial assets are measured and recognized at each reporting date based on historical, current, and forecasted information. In November 2018, the FASB issued ASU No. 2018-19, Codification Improvements to Topic 326, Financial Instruments - Credit Losses, and in April 2019, the FASB issued ASU No. 2019-04, Codification Improvements to Topic 326, Financial Instruments – Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments. These ASUs provide supplemental guidance and clarification to ASU 2016-13 and must be adopted concurrently with the adoption of ASU 2016-13, cumulatively referred to as “Topic 326.” This guidance is effective for fiscal years beginning after December 15, 2022 and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the effects of the adoption of this update on its consolidated financial statements. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which enhances and simplifies various aspects of income tax accounting guidance. This guidance is effective for fiscal years beginning after December 15, 2021, and interim periods within fiscal years beginning after December 15, 2022. Early adoption is permitted, including adoption in an interim period. An entity that elects to early adopt ASU 2019-12 in an interim period should reflect any adjustments as of the beginning of the annual period that includes that interim period. The Company is currently evaluating the effects of the adoption of this update on its consolidated financial statements. In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity, which simplifies the accounting for certain convertible instruments, amends the guidance on derivative scope exceptions for contracts in an entity’s own equity, and modifies the guidance on diluted earnings per share calculations as a result of these changes. This guidance is effective for fiscal years beginning after December 15, 2023 and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the effects of the adoption of this update on its consolidated financial statements. Recently Adopted Accounting Pronouncements

Net Income (Loss) Per Share

Net Income (Loss) Per Share	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	Net Income (Loss) Per Share Basic and diluted net income (loss) per share are computed using the two-class method as required when there are participating securities and multiple classes of common stock. Prior to May 14, 2021, when the Company’s Series A preferred stock and Series B preferred stock converted into shares of Class B common stock, the Company’s redeemable convertible preferred stock were participating securities as the holders of the redeemable convertible preferred stock were entitled to participate in dividends with common stock. In periods of net income, net income after deducting the accretion of redeemable convertible preferred stock was attributed to common stockholders and participating securities based on their participation rights. Net losses after deducting the accretion of redeemable convertible preferred stock are not allocated to the participating securities as the participating securities do not have a contractual obligation to share in any losses. In April 2021, the Company filed its amended and restated certificate of incorporation, which resulted in the creation of Class A common stock and Class B common stock. As the liquidation and dividend rights are identical for Class A and Class B common stock (see Note 9), the undistributed earnings under the two-class method are allocated on a proportional basis and the resulting net income (loss) per share attributable to common stockholders will, therefore, be the same for both Class A and Class B common stock on an individual or combined basis. The following table presents the Company’s basic net income (loss) per share (in thousands, except per share amounts): Three Months Ended Nine Months Ended 2021 2020 2021 2020 Net income (loss) per share, basic: Net income (loss) $ 22,060 $ 23,106 $ (17,389) $ 33,347 Less: Accretion of redeemable convertible preferred stock — (975) (1,480) (2,886) Less: Undistributed earnings attributable to participating securities — (5,129) — (7,091) Net income (loss) attributable to Class A and Class B common stockholders $ 22,060 $ 17,002 $ (18,869) $ 23,370 Weighted average shares of Class A and Class B common stock outstanding 115,372 80,218 97,159 79,775 Net income (loss) per share attributable to Class A and Class B common stockholders, basic $ 0.19 $ 0.21 $ (0.19) $ 0.29 The following table presents the Company’s diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended Nine Months Ended 2021 2020 2021 2020 Net income (loss) per share, diluted: Numerator: Net income (loss) attributable to Class A and Class B common stockholders $ 22,060 $ 17,002 $ (18,869) $ 23,370 Add: Reallocation of net income attributable to participating securities — 668 — 808 Interest on convertible notes with related parties, net of tax — 132 — 143 Net income (loss) attributable to Class A and Class B common stockholders, diluted $ 22,060 $ 17,802 $ (18,869) $ 24,321 Denominator: Weighted average shares of Class A and Class B common stock outstanding, basic 115,372 80,218 97,159 79,775 Effect of dilutive securities: Options to purchase common stock 10,482 11,847 — 11,969 Convertible notes with related parties — 3,779 — 1,393 Restricted stock units 582 — — — Employee stock purchase plan — — — — Unvested early exercise common stock 38 — — — Weighted average shares of Class A and Class B common stock outstanding, diluted 126,474 95,844 97,159 93,137 Net income (loss) per share attributable to Class A and Class B common stockholders, diluted $ 0.17 $ 0.19 $ (0.19) $ 0.26 The following table presents the weighted average number of potentially dilutive common stock equivalents excluded from the computation of diluted net income (loss) per share because their inclusion would have been anti-dilutive (in thousands): Three Months Ended Nine Months Ended 2021 2020 2021 2020 Options to purchase common stock — 3,899 15,249 4,966 Restricted stock units 21 4,271 5,620 3,792 Redeemable convertible preferred stock, if converted basis — — 11,791 — Convertible notes with related parties, if converted basis — — 1,639 — Unvested early exercise common stock — — 35 — Employee stock purchase plan 88 — 30 — Total shares excluded from diluted net income (loss) per share 109 8,170 34,364 8,758

Revenue Information

Revenue Information	9 Months Ended
	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue Information	Revenue Information The Company disaggregates revenue into two streams: subscription revenue and performance-based revenue. The following table presents the Company’s revenue streams (in thousands): Three Months Ended Nine Months Ended 2021 2020 2021 2020 Subscription $ 172,525 $ 84,839 $ 424,321 $ 254,206 Performance-based 40,147 18,012 96,683 49,592 Total revenue $ 212,672 $ 102,851 $ 521,004 $ 303,798 The Company recognized $20.9 million and $13.2 million of revenues during the three months ended September 30, 2021 and 2020, respectively, that was included in the deferred revenue balances as of June 30, 2021 and 2020, respectively. The Company recognized $12.4 million and $14.5 million of revenues during the nine months ended September 30, 2021 and 2020, respectively, that was included in the deferred revenue balances as of December 31, 2020 and 2019, respectively. As of September 30, 2021 and December 31, 2020, the Company had no contract assets outstanding. Performance Obligations No revenue was recognized during the three and nine months ended September 30, 2021 and 2020 from performance obligations satisfied in previous periods. As of September 30, 2021, revenue for unsatisfied performance obligations expected to be recognized in the future is $6.0 million, which primarily relates to subscription services such as time-based job posting plans, upsell services, and resume database plans. Of this amount, the Company expects to recognize $2.0 million in the remainder of the current year and $4.0 million in the following year. Remaining performance obligations include amounts that will be invoiced in future periods, and exclude (i) contracts with an original expected term of one year or less and (ii) contracts for which the

Accrued Expenses

Accrued Expenses	9 Months Ended
	Sep. 30, 2021
Payables and Accruals [Abstract]
Accrued Expenses	Accrued Expenses Accrued expenses consist of the following (in thousands): September 30, December 31, 2021 2020 Accrued marketing $ 12,225 $ 6,006 Accrued bonuses 9,903 11,202 Other accrued expenses 11,358 7,311 Accrued partner expenses 12,124 5,554 Accrued 401(k) contributions 2,202 2,414 Accrued commissions 6,078 3,332 Accrued non-income taxes 8,246 600 Accrued refunds and customer liabilities 4,403 2,423 Employee stock purchase plan contributions 927 — Total accrued expenses $ 67,466 $ 38,842 s

Credit Facility

Credit Facility	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Credit Facility	Credit Facility In April 2021, the Company terminated its existing revolving credit agreement from September 2020 and entered into a new $250.0 million credit facility agreement with a syndicate of banks. The new credit facility has a maturity date of April 30, 2026 and bears interest at a rate based upon the Company’s Net Leverage Ratio. The Company’s Net Leverage Ratio is defined as total debt less total cash and permitted investments outstanding at period end, with a maximum total cash and permitted investments adjustment of $100.0 million, divided by the trailing twelve month of earnings, adjusted for items such as non-cash expenses and other nonrecurring transactions. The Company is also obligated to pay other customary fees including a commitment fee on a quarterly basis based on amounts committed but unused under the new credit facility at a rate between 0.25% to 0.35%, depending on the Company’s Net Leverage Ratio. The new credit facility is collateralized by security interests in substantially all of the Company’s assets and includes customary events of default such as non-payment of principal, non-payment of interest or fees, inaccuracy of representations and warranties, violation of certain covenants, cross default to certain other indebtedness, bankruptcy and insolvency events, material judgments against the Company, and a change of control. The occurrence of an event of default could result in the acceleration of the obligations under the new credit facility. The new credit facility agreement contains customary representations, warranties, affirmative covenants, such as financial statement reporting requirements, negative covenants, and financial covenants, such as maintenance of certain net leverage ratio requirements. The negative covenants include restrictions that, among other things, restrict the Company’s ability to incur liens and indebtedness, make certain investments, declare dividends, dispose of, transfer or sell assets, make stock repurchases and consummate certain other matters, all subject to certain exceptions. The Company had no amounts outstanding under the new credit facility as of September 30, 2021. The amount available under the credit facility as of September 30, 2021 was $244.2 million, which is the credit limit less letters of credit outstanding of $5.8 million. On June 22, 2020, the Company issued subordinated secured convertible promissory notes ("Convertible Notes") to related parties who were then holders of the Company’s Redeemable Convertible Preferred Stock. The Convertible Notes totaled $25.0 million and had a maturity date of June 22, 2023. The principal and accrued interest balance of the Convertible Notes was automatically convertible into common stock upon a Direct Listing with a conversion price equal to the lower of (i) 75% of the volume-weighted average price of the common stock on the first trading day following such listing and (ii) $8.2909.

Convertible Notes with Related

Convertible Notes with Related Parties	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Convertible Notes with Related Parties	Credit Facility In April 2021, the Company terminated its existing revolving credit agreement from September 2020 and entered into a new $250.0 million credit facility agreement with a syndicate of banks. The new credit facility has a maturity date of April 30, 2026 and bears interest at a rate based upon the Company’s Net Leverage Ratio. The Company’s Net Leverage Ratio is defined as total debt less total cash and permitted investments outstanding at period end, with a maximum total cash and permitted investments adjustment of $100.0 million, divided by the trailing twelve month of earnings, adjusted for items such as non-cash expenses and other nonrecurring transactions. The Company is also obligated to pay other customary fees including a commitment fee on a quarterly basis based on amounts committed but unused under the new credit facility at a rate between 0.25% to 0.35%, depending on the Company’s Net Leverage Ratio. The new credit facility is collateralized by security interests in substantially all of the Company’s assets and includes customary events of default such as non-payment of principal, non-payment of interest or fees, inaccuracy of representations and warranties, violation of certain covenants, cross default to certain other indebtedness, bankruptcy and insolvency events, material judgments against the Company, and a change of control. The occurrence of an event of default could result in the acceleration of the obligations under the new credit facility. The new credit facility agreement contains customary representations, warranties, affirmative covenants, such as financial statement reporting requirements, negative covenants, and financial covenants, such as maintenance of certain net leverage ratio requirements. The negative covenants include restrictions that, among other things, restrict the Company’s ability to incur liens and indebtedness, make certain investments, declare dividends, dispose of, transfer or sell assets, make stock repurchases and consummate certain other matters, all subject to certain exceptions. The Company had no amounts outstanding under the new credit facility as of September 30, 2021. The amount available under the credit facility as of September 30, 2021 was $244.2 million, which is the credit limit less letters of credit outstanding of $5.8 million. On June 22, 2020, the Company issued subordinated secured convertible promissory notes ("Convertible Notes") to related parties who were then holders of the Company’s Redeemable Convertible Preferred Stock. The Convertible Notes totaled $25.0 million and had a maturity date of June 22, 2023. The principal and accrued interest balance of the Convertible Notes was automatically convertible into common stock upon a Direct Listing with a conversion price equal to the lower of (i) 75% of the volume-weighted average price of the common stock on the first trading day following such listing and (ii) $8.2909.

Commitment and Contingencies

Commitment and Contingencies	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal Matters The Company is subject to various legal proceedings and claims that arise in the ordinary course of business. If the Company determines that it is probable that a loss has been incurred and the amount is reasonably estimable, the Company will record a liability. However, if the Company determines that a contingent loss is reasonably possible and the loss or range of loss can be estimated, the Company will disclose the possible loss in the condensed consolidated financial statements. In April 2019, the Company was named as a defendant in a putative class action lawsuit filed by a former employee in the Los Angeles Superior Court alleging that the Company violated the Fair Credit Reporting Act as well as owed certain compensation to employees. In January 2020, the former employee filed a related representative action in the Los Angeles Superior Court under the Private Attorney General Act alleging similar claims regarding compensation owed to employees. In January 2021, the Company filed a motion for summary judgment or, in the alternative, summary adjudication, which was granted in part and denied in part. At the date these condensed consolidated financial statements were issued, the parties had agreed to settle the lawsuit for an immaterial amount and accordingly, the Company recorded a liability within accrued expenses as of September 30, 2021. Indemnification In the ordinary course of business, the Company may provide indemnification of varying scopes and terms to customers, investors, directors and officers with respect to certain matters, including, but not limited to, losses arising out of the Company’s breach of such agreements, services to be provided by the Company, or from certain claims made by third parties. These indemnification provisions may survive termination of the underlying agreement and the maximum potential amount of future payments the Company could be required to make under these indemnification provisions may not be subject to maximum loss clauses. The maximum potential amount of future payments the Company could be required to make under these indemnification provisions is indeterminable. The Company has never paid a material claim, nor has the Company been sued in connection with these indemnification arrangements. As of September 30, 2021, the Company has not accrued a liability for these indemnification arrangements because the likelihood of incurring a payment obligation, if any, in connection with these indemnification arrangements is neither probable nor reasonably estimable. Non-income Taxes The subject matter of non-income tax audits and their corresponding settlement agreements primarily arises from disputes on the tax treatment and tax rate applied to the sale of the Company’s products and services in various jurisdictions. The Company accrues non-income taxes that may result from

Common Stock and Redeemable Con

Common Stock and Redeemable Convertible Preferred Stock	9 Months Ended
	Sep. 30, 2021
Equity and Temporary Equity [Abstract]
Common Stock and Redeemable Convertible Preferred Stock	Common Stock and Redeemable Convertible Preferred Stock Common stock The Company is authorized to issue a total of 1.45 billion shares consisting of 700 million shares of Class A common stock, 700 million shares of Class B common stock, and 50 million shares of preferred stock all with a par value per share of $0.00001. The Class A common stock is entitled to one vote per share and the Class B common stock is entitled to twenty votes per share. The Class A and Class B common stock have the same dividend and liquidation rights. The Class B common stock converts to Class A common stock at any time at the option of the holder. Additionally, each share of Class B common stock will convert automatically into one share of Class A common stock upon any transfer, except for certain transfers described in the amended and restated certificate of incorporation. In January 2021, the Company repurchased 50,000 shares of common stock from a former employee for an aggregate price of $0.5 million. The repurchased shares of common stock were retired and recorded as a reduction of Class B common stock and additional paid-in capital. In May 2021, the Company repurchased 100,000 shares of common stock from a former employee for an aggregate price of $2.3 million. The repurchased shares of common stock were retired and recorded as a reduction of Class B common stock and additional paid-in capital. Redeemable Convertible Preferred Stock In April 2021, the Company amended and restated its certificate of incorporation such that the redeemable convertible preferred stock would automatically convert into shares of common stock upon the effectiveness of the Direct Listing.

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation Total stock-based compensation expense is recorded in the Condensed Consolidated Statements of Operations as follows (in thousands): Three Months Ended Nine Months Ended 2021 2020 2021 2020 Cost of revenue $ 158 $ 16 $ 911 $ 58 Sales and marketing 2,999 134 15,415 559 Research and development 6,935 737 26,333 2,310 General and administrative 11,941 369 44,966 1,633 Total stock-based compensation $ 22,033 $ 1,256 $ 87,625 $ 4,560 2014 Equity Incentive Plan Under the amended and restated certificate of incorporation, all outstanding options to purchase common stock became options to purchase an equivalent number of shares of Class B common stock and all RSUs became RSUs for an equivalent number of shares of Class B common stock under the 2014 Equity Incentive Plan. 2021 Equity Incentive Plan In April 2021, the Company adopted the 2021 Equity Incentive Plan (the “2021 Plan”), which became effective on May 14, 2021 in connection with the Direct Listing. The 2021 Plan permits the grant of incentive stock options to employees and the grant of non-qualified stock options, restricted stock, restricted stock awards, RSUs, stock appreciation rights, performance units, performance shares and stock bonus awards to the Company’s employees, directors, and consultants. Under the 2021 Plan, 10.7 million shares were initially reserved for issuance of Class A common stock. The number of shares initially reserved for issuance pursuant to awards under the 2021 Plan will be increased by (i) (a) any reserved shares not issued or subject to outstanding awards granted under the Company’s 2012 Stock Plan and 2014 Equity Incentive Plan (collectively, the “Prior Plans”) that cease to be subject to such awards by forfeiture or otherwise after the effective date, (b) shares issued under the Prior Plans before or after the effective date pursuant to the exercise of stock options that are, after the effective date, forfeited, (c) shares issued under the Prior Plans that are repurchased by the Company at the original purchase price or are otherwise forfeited, and (d) shares that are subject to stock options or other awards under the Prior Plans that are used to pay the exercise price of a stock option or withheld to satisfy the tax withholding obligations related to any award and (ii) an annual increase on January 1st of each year beginning in 2022 through 2031, by the lesser of (a) 5% of the number of shares of all classes of the Company’s common stock issue and outstanding on December 31 immediately prior to the date of increase or (b) such number of shares determined by the board of directors. As of September 30, 2021, 2.5 million RSUs and 0.1 million stock options have been issued under the 2021 Plan. 2021 Employee Stock Purchase Plan In August 2021, the Company launched the 2021 Employee Stock Purchase Plan ("ESPP"), and the first offering period commenced on August 15, 2021 and will end on February 14, 2022. The Company has initially reserved 1.3 million shares of its Class A common stock for issuance and sale under the ESPP. On January 1 of each of year, 2022 through 2031, the aggregate number of shares of Class A common stock reserved for issuance under the ESPP shall be increased automatically by the number of shares equal to 1% of the total number of outstanding shares of Class A common stock and shares of preferred stock of the Company (on an as converted to common stock basis) on the immediately preceding December 31; provided that the board of directors or compensation committee may in its sole discretion reduce the amount of the increase in any particular year. The ESPP allows eligible employees the option to purchase shares of the Company's Class A common stock at a 15% discount through payroll deductions of their eligible compensation, subject to certain plan limitations. The ESPP provides for concurrent six-month offering and purchase periods beginning February 15 and August 15 of each year. On each purchase date, eligible employees can purchase the Company’s Class A common stock at a price per share equal to 85% of the lesser of the fair market value of the Company’s Class A common stock on (i) the offering date or (ii) the purchase date. As of September 30, 2021, no shares of Class A common stock have been issued under the ESPP. In the three and nine months ended September 30, 2021, total stock-based compensation expense of $0.4 million was recognized related to the ESPP. As of September 30, 2021, there was $1.7 million of unrecognized stock-based compensation expense that is expected to be recognized over the remaining term of the first offering period. As of September 30, 2021, the Company recorded a liability of $0.9 million related to the accumulated payroll deductions, which are refundable to employees who withdraw from the ESPP. This amount is included within accrued expenses in the accompanying Condensed Consolidated Balance Sheets. Stock Options A summary of the Company’s stock option activity under the Prior Plans and the 2021 Plan (collectively, the “Plans”) is as follows (in thousands, except weighted average information): Number of Options Outstanding Weighted Average Exercise Price Per Share Outstanding at December 31, 2020 19,373 $ 2.09 Granted 254 2.00 Exercised (8,168) 1.81 Forfeited/Canceled (195) 4.55 Outstanding at September 30, 2021 11,264 $ 2.24 Exercisable at September 30, 2021 10,052 $ 2.03 As of September 30, 2021, total remaining stock-based compensation expense for unvested stock options is $8.3 million, which is expected to be recognized over a weighted average period of 1.4 years. In the nine months ended September 30, 2021, there were also 115,000 options exercised related to an equity grant outside of the Plans. In April 2021, the Company approved an amendment of this grant outside of the Plans, and the amendment resulted in the vesting of an additional 50,000 options. The grantee’s remaining 100,000 unvested options were cancelled and a new grant for 32,500 RSUs was concurrently issued under the 2014 Equity Incentive Plan by the Company, which was accounted for as a stock award modification. The incremental stock-based compensation expense recorded in the three and nine months ended September 30, 2021 as a result of the modification was not material to the condensed consolidated financial statements. Restricted Stock Units The Company has granted RSUs to certain employees and directors of the Company. The granted RSUs vest upon the satisfaction of both a time-based service condition and a liquidity event requirement. The time-based service condition for these awards is generally satisfied over four years. The liquidity event requirement is satisfied upon the earliest to occur of a qualifying event, defined as a change of control transaction or after a set period of time following the effective date of the Company’s initial public offering pursuant to an effective registration statement under the Securities Act for the offer and sale of shares by the Company. A direct listing in which the Company did not sell its equity securities would not have satisfied the liquidity event performance condition; however, on April 19, 2021, the Company’s board of directors waived the liquidity event performance condition for the 6.9 million RSUs then outstanding so those that had satisfied the service condition would vest upon the earlier of the first day of trading of the Company’s common stock on the New York Stock Exchange, or March 15, 2022. As the satisfaction of the performance condition was not probable for accounting purposes prior to the waiver, the waiver of the liquidity event performance condition resulted in the remeasurement of the modified awards at fair value on the date of the waiver, which management estimated to be $25.04 per share or approximately $172.6 million. On April 19, 2021, the Company also granted the CEO Performance Award, which provides for a grant of 1.4 million RSUs. The CEO Performance Award consists of five vesting tranches with a vesting schedule based on achieving stock price targets ranging from $67.61 per share to $157.75 per share, which is calculated as the volume-weighted average over a 30-day trading window following the first day the Company becomes a publicly traded company, as well as satisfying certain minimum service requirements of one Tranche Number of RSUs Eligible to Vest Company Stock Price Target Minimum Service Period (in years) 1 279,600 $67.61 1 2 279,600 $82.63 2 3 279,600 $102.66 3 4 279,600 $127.70 4 5 279,600 $157.75 5 The Company estimated the grant date fair value of this award using a model based on multiple stock price paths developed through the use of a Monte Carlo simulation. A Monte Carlo simulation model also was used to estimate a derived service period for each of the five vesting tranches, which is the measure of the expected time to achieve each of the stock price targets. The various assumptions used in the Monte Carlo simulation included an expected dividend yield of zero, expected term of ten years, estimated volatility of 59%, and a risk-free interest rate of 2%. Using these inputs, the weighted average grant date fair value was estimated to be $16.34 per share. The weighted average derived service period of each tranche was estimated to be 4.1 years and ranged from 3.2 to 5.0 years. The Company will recognize aggregate stock-based compensation expense of $22.8 million over the derived service period of each tranche using a graded attribution method. During the three and nine months ended September 30, 2021, the Company recorded stock-based compensation expense of $1.5 million and $2.1 million, respectively, related to the CEO Performance Award. On September 21, 2021, the Company’s former Chief Operating Officer (“COO”) resigned and entered into a transition and separation agreement with the Company, where all RSUs awarded to the former COO prior to the resignation will continue to vest for a certain period of time (“Transition Period”). This agreement resulted in modifications to the RSUs and options on the date of the separation agreement. Approximately $3.8 million of stock-based compensation expense was recognized by the Company during the three and nine months ended September 30, 2021 related to the modification of the awards, representing the incremental fair value of the awards on the date of the modification. For all other RSUs, excluding the CEO Performance Award and modification of the COO awards, the Company recorded stock-based compensation expense of $15.8 million and $79.2 million during the three and nine months ended September 30, 2021, respectively. A summary of the Company’s RSU activity for the nine months ended September 30, 2021 is as follows (in thousands, except weighted average information): Number of Shares Weighted Average Grant Date Fair Value Per Share Unvested at December 31, 2020 5,451 $ 5.75 Granted 5,461 22.61 Vested (2,932) 25.08 Forfeited/Canceled (554) 19.25 Unvested at September 30, 2021 7,426 $ 23.70

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company computes its provision (benefit) for income taxes by applying the estimated annual effective tax rate to pretax income or loss and adjusts the provision for discrete tax items recorded in the period. For the three and nine months ended September 30, 2021, the Company recorded an income tax benefit of $4.5 million and $17.1 million, respectively. For the three and nine months ended September 30, 2020, the Company recorded income tax expense of $0.2 million and $0.5 million, respectively. The effective tax rates for the three and nine months ended September 30, 2021 were (25)% and 50%, respectively, and the effective tax rates for the three and nine months ended September 30, 2020 were 1% and 2%, respectively. The effective tax rate for the three and nine months ended September 30, 2021 differed from the U.S. federal statutory tax rate of 21% primarily due to excess tax benefits relating to the exercise of non-qualified stock options and settlement of RSUs, partially offset by permanent items such as the Company’s Direct Listing costs and limitations on the amount of deductible officer compensation. The three month period also differed from the statutory rate as a result of better than anticipated earnings for the period, resulting in a reduction to the previously forecasted annual effective tax rate applied to the previous quarters non-discrete income. The effective tax rate for the three and nine months ended September 30, 2020 differed from the U.S. federal statutory tax rate of 21% primarily due to the valuation allowance maintained against net U.S. federal and state deferred tax assets. During the fourth quarter of 2020, the Company released its full valuation allowance on its U.S. federal and state net deferred tax assets, as it was more likely than not that those deferred tax assets

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events In October 2021, the Company approved the issuance of a performance-based RSU award to an employee for up to 105,000 units under the 2021 Plan. The RSU award consists of up to 15 tranches of 7,000 units each which will commence time-based vesting upon a qualified new hire who is sourced by the employee and has completed six months of tenure as an employee (the “Milestone”). Following the occurrence of each applicable Milestone for a particular tranche, 1/16 of the total number of units subject to the tranche will vest on a quarterly basis. In October 2021, the board of directors approved a resolution which allows the Company to withhold shares for taxes for RSUs and non-qualified options, and exercises for options, at the Company’s discretion. As of September 30, 2021, the Company has not withheld any shares as part of any RSU vesting or option exercises. In November 2021, the compensation committee of the board of directors approved a new 2021 Annual Executive Incentive Plan. Other than the CEO, whose award will be issued as RSUs, each of the Company’s plan participants is eligible to receive a bonus in the form of cash or in the form of RSUs, at the individual’s sole election. The bonus is based on achievement of certain annual 2021 revenue performance metrics established by the compensation committee of the board of directors. Elections must be made no later than December 1, 2021, and the amount of RSUs to be granted will be the bonus divided by the average closing price per share for the seven day period ending December 21, 2021. Any RSU awards will be granted under the 2021 Plan.

Basis of Presentation, Princi_2

Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Principles of Consolidation	The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information. Accordingly, certain information and disclosures normally included in consolidated financial statements presented in accordance with U.S. GAAP have been condensed or omitted. The condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. The accompanying condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in the Company’s final prospectus filed with the SEC pursuant to Rule 424(b) under the Securities Act of 1933, as amended, on May 26, 2021 (the “Prospectus”). The consolidated balance sheet as of December 31, 2020 has been derived from the Company’s audited consolidated financial statements. In the opinion of the Company’s management, the accompanying unaudited condensed consolidated financial statements include all adjustments (consisting of normal recurring adjustments) necessary for the fair statement of the condensed consolidated financial statements. There have been no changes in the Company’s accounting policies from those disclosed in its audited consolidated financial statements and the related notes included in the Prospectus.
Use of Estimates	The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, and the reported amounts of revenue and expenses during the reporting period. Significant estimates include revenue recognition, estimates relating to the measurement of operating lease right-of-use (“ROU”) assets and operating lease liabilities, determination of the fair value of stock-based awards, valuation of common stock in periods prior to becoming a public company, collectability of accounts receivable, impairment of long-lived assets, including goodwill, carrying value and useful lives of property and equipment and internal-use software, the amortization period for deferred commission costs, and income taxes. By their nature, estimates are subject to an inherent degree of uncertainty and actual results could differ from those estimates. The impact of the Coronavirus pandemic (“COVID-19”) continues to evolve. As a result, many of the Company’s estimates and assumptions require increased judgment and carry a higher degree of variability and volatility. As of the date these condensed consolidated financial statements are issued, the Company is not aware of any specific event or circumstance that would require an update to the Company’s estimates or judgments, or change to the carrying value of the Company’s assets or liabilities. However, these estimates and judgments may change as new events occur and additional information is obtained, which may result in changes being recognized in the consolidated financial statements in future periods. Actual results could differ from those estimates and any such differences may have a material impact on the financial statements.
Fair Value Measurements	Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Accounting standards describe a fair value hierarchy based on the following three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value: - Level 1 — Quoted prices in active markets for identical assets, liabilities, or funds. - Level 2 — Inputs other than Level 1 that are observable, either directly or indirectly, 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, including accounts receivable, accounts payable, and accrued expenses, approximate fair value because of their short-term maturities. The fair value of the Company’s convertible notes with related parties as of December 31, 2020 was estimated to be approximately $36.9 million, and was based on the value of shares into which the notes convert. The value of the shares represents a Level 3 input in the fair value hierarchy. The convertible notes with related parties converted into shares of Class B common stock in connection with the Direct Listing in May 2021. Certain assets, including goodwill and intangible assets, are also subject to measurement at fair value on a non-recurring basis using Level 3 inputs, but only when they are deemed to be impaired. As of September 30, 2021 and December 31, 2020, no impairments were identified on those assets required to be measured at fair value on a non-recurring basis.
Segments and Geographic Information	The Company operates as a single operating segment. The Company’s Chief Operating Decision Maker, the CEO, regularly reviews financial information presented on a consolidated basis for purposes of assessing financial performance and allocating resources.
Stock-based Compensation for Awards with a Market Condition	In April 2021, the Company granted a restricted stock unit (“RSU”) award (the “CEO Performance Award”), which included service, market, and performance based vesting conditions. The fair value of the award is determined using a Monte Carlo simulation model. The associated stock-based compensation is recorded over the requisite service period, using a graded attribution method. The requisite service period is the longer of the service period derived from the Monte Carlo simulation model and the explicit service period the CEO is required to remain employed to vest in the award. The market condition is satisfied upon achieving certain stock price targets for a period following the completion of the Company’s Direct Listing. The CEO Performance Award also contains an implied performance-based vesting condition as the CEO’s ability to earn the award is contingent upon the completion of the Direct Listing. Accordingly, no expense was recognized prior to the completion of the Company’s Direct Listing on May 26, 2021, as vesting was not considered probable for accounting purposes until the Direct Listing occurred. Provided that Ian Siegel continues to be the CEO of the Company, stock-based compensation expense is recognized over the requisite service period, regardless of whether the stock price targets are achieved. If the stock price targets are met sooner than the derived service period, the Company will accelerate the recognition of stock-based compensation expense to reflect the cumulative expense associated with the vested shares. The determination of the fair value of stock-based awards with a market condition is inherently uncertain and subjective and involves the application of valuation models and assumptions requiring the use of judgment. If the Company had made different assumptions, its stock-based compensation expense, and its results of operations for the three and nine months ended September 30, 2021 may have been significantly different.
Recent Accounting Pronouncements	Accounting Pronouncements Not Yet Adopted As an “emerging growth company,” the Company is allowed by the Jumpstart Our Business Startups Act to delay adoption of new or revised accounting pronouncements applicable to public companies until such pronouncements are made applicable to private companies. The Company has elected to use the adoption dates applicable to private companies. As a result, the Company’s financial statements may not be comparable to the financial statements of issuers who are required to comply with the effective date for new or revised accounting standards that are applicable to public companies. In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which replaces the existing model for measuring the allowance for credit losses for financial assets measured at amortized cost (including accounts receivable) to a model that is based on the expected losses rather than incurred losses. Under the new credit loss model, lifetime expected credit losses on such financial assets are measured and recognized at each reporting date based on historical, current, and forecasted information. In November 2018, the FASB issued ASU No. 2018-19, Codification Improvements to Topic 326, Financial Instruments - Credit Losses, and in April 2019, the FASB issued ASU No. 2019-04, Codification Improvements to Topic 326, Financial Instruments – Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments. These ASUs provide supplemental guidance and clarification to ASU 2016-13 and must be adopted concurrently with the adoption of ASU 2016-13, cumulatively referred to as “Topic 326.” This guidance is effective for fiscal years beginning after December 15, 2022 and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the effects of the adoption of this update on its consolidated financial statements. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which enhances and simplifies various aspects of income tax accounting guidance. This guidance is effective for fiscal years beginning after December 15, 2021, and interim periods within fiscal years beginning after December 15, 2022. Early adoption is permitted, including adoption in an interim period. An entity that elects to early adopt ASU 2019-12 in an interim period should reflect any adjustments as of the beginning of the annual period that includes that interim period. The Company is currently evaluating the effects of the adoption of this update on its consolidated financial statements. In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity, which simplifies the accounting for certain convertible instruments, amends the guidance on derivative scope exceptions for contracts in an entity’s own equity, and modifies the guidance on diluted earnings per share calculations as a result of these changes. This guidance is effective for fiscal years beginning after December 15, 2023 and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the effects of the adoption of this update on its consolidated financial statements. Recently Adopted Accounting Pronouncements
Earnings Per Share	Basic and diluted net income (loss) per share are computed using the two-class method as required when there are participating securities and multiple classes of common stock. Prior to May 14, 2021, when the Company’s Series A preferred stock and Series B preferred stock converted into shares of Class B common stock, the Company’s redeemable convertible preferred stock were participating securities as the holders of the redeemable convertible preferred stock were entitled to participate in dividends with common stock. In periods of net income, net income after

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method	The following table presents the Company’s basic net income (loss) per share (in thousands, except per share amounts): Three Months Ended Nine Months Ended 2021 2020 2021 2020 Net income (loss) per share, basic: Net income (loss) $ 22,060 $ 23,106 $ (17,389) $ 33,347 Less: Accretion of redeemable convertible preferred stock — (975) (1,480) (2,886) Less: Undistributed earnings attributable to participating securities — (5,129) — (7,091) Net income (loss) attributable to Class A and Class B common stockholders $ 22,060 $ 17,002 $ (18,869) $ 23,370 Weighted average shares of Class A and Class B common stock outstanding 115,372 80,218 97,159 79,775 Net income (loss) per share attributable to Class A and Class B common stockholders, basic $ 0.19 $ 0.21 $ (0.19) $ 0.29
Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method	The following table presents the Company’s diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended Nine Months Ended 2021 2020 2021 2020 Net income (loss) per share, diluted: Numerator: Net income (loss) attributable to Class A and Class B common stockholders $ 22,060 $ 17,002 $ (18,869) $ 23,370 Add: Reallocation of net income attributable to participating securities — 668 — 808 Interest on convertible notes with related parties, net of tax — 132 — 143 Net income (loss) attributable to Class A and Class B common stockholders, diluted $ 22,060 $ 17,802 $ (18,869) $ 24,321 Denominator: Weighted average shares of Class A and Class B common stock outstanding, basic 115,372 80,218 97,159 79,775 Effect of dilutive securities: Options to purchase common stock 10,482 11,847 — 11,969 Convertible notes with related parties — 3,779 — 1,393 Restricted stock units 582 — — — Employee stock purchase plan — — — — Unvested early exercise common stock 38 — — — Weighted average shares of Class A and Class B common stock outstanding, diluted 126,474 95,844 97,159 93,137 Net income (loss) per share attributable to Class A and Class B common stockholders, diluted $ 0.17 $ 0.19 $ (0.19) $ 0.26
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following table presents the weighted average number of potentially dilutive common stock equivalents excluded from the computation of diluted net income (loss) per share because their inclusion would have been anti-dilutive (in thousands): Three Months Ended Nine Months Ended 2021 2020 2021 2020 Options to purchase common stock — 3,899 15,249 4,966 Restricted stock units 21 4,271 5,620 3,792 Redeemable convertible preferred stock, if converted basis — — 11,791 — Convertible notes with related parties, if converted basis — — 1,639 — Unvested early exercise common stock — — 35 — Employee stock purchase plan 88 — 30 — Total shares excluded from diluted net income (loss) per share 109 8,170 34,364 8,758

Revenue Information (Tables)

Revenue Information (Tables)	9 Months Ended
	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table presents the Company’s revenue streams (in thousands): Three Months Ended Nine Months Ended 2021 2020 2021 2020 Subscription $ 172,525 $ 84,839 $ 424,321 $ 254,206 Performance-based 40,147 18,012 96,683 49,592 Total revenue $ 212,672 $ 102,851 $ 521,004 $ 303,798

Accrued Expenses (Tables)

Accrued Expenses (Tables)	9 Months Ended
	Sep. 30, 2021
Payables and Accruals [Abstract]
Schedule of Accrued Liabilities	Accrued expenses consist of the following (in thousands): September 30, December 31, 2021 2020 Accrued marketing $ 12,225 $ 6,006 Accrued bonuses 9,903 11,202 Other accrued expenses 11,358 7,311 Accrued partner expenses 12,124 5,554 Accrued 401(k) contributions 2,202 2,414 Accrued commissions 6,078 3,332 Accrued non-income taxes 8,246 600 Accrued refunds and customer liabilities 4,403 2,423 Employee stock purchase plan contributions 927 — Total accrued expenses $ 67,466 $ 38,842 s

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Share-based Payment Arrangement, Expensed and Capitalized, Amount	Total stock-based compensation expense is recorded in the Condensed Consolidated Statements of Operations as follows (in thousands): Three Months Ended Nine Months Ended 2021 2020 2021 2020 Cost of revenue $ 158 $ 16 $ 911 $ 58 Sales and marketing 2,999 134 15,415 559 Research and development 6,935 737 26,333 2,310 General and administrative 11,941 369 44,966 1,633 Total stock-based compensation $ 22,033 $ 1,256 $ 87,625 $ 4,560
Schedule of Stock Options Roll Forward	A summary of the Company’s stock option activity under the Prior Plans and the 2021 Plan (collectively, the “Plans”) is as follows (in thousands, except weighted average information): Number of Options Outstanding Weighted Average Exercise Price Per Share Outstanding at December 31, 2020 19,373 $ 2.09 Granted 254 2.00 Exercised (8,168) 1.81 Forfeited/Canceled (195) 4.55 Outstanding at September 30, 2021 11,264 $ 2.24 Exercisable at September 30, 2021 10,052 $ 2.03
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity	Tranche Number of RSUs Eligible to Vest Company Stock Price Target Minimum Service Period (in years) 1 279,600 $67.61 1 2 279,600 $82.63 2 3 279,600 $102.66 3 4 279,600 $127.70 4 5 279,600 $157.75 5
Schedule of Nonvested Restricted Stock Units Activity	A summary of the Company’s RSU activity for the nine months ended September 30, 2021 is as follows (in thousands, except weighted average information): Number of Shares Weighted Average Grant Date Fair Value Per Share Unvested at December 31, 2020 5,451 $ 5.75 Granted 5,461 22.61 Vested (2,932) 25.08 Forfeited/Canceled (554) 19.25 Unvested at September 30, 2021 7,426 $ 23.70

Description of Business (Detail

Description of Business (Details) - USD ($) shares in Millions, $ in Millions	May 26, 2021	May 14, 2021	Sep. 30, 2021	Sep. 30, 2021	May 25, 2021
Class of Stock [Line Items]
Issuance costs incurred in connection with Direct Listing			$ 0	$ 34
Series A Redeemable Convertible Preferred Stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, outstanding (in shares)					2.3
Series B Redeemable Convertible Preferred Stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, outstanding (in shares)					6
Common Class B | Common Stock
Class of Stock [Line Items]
Conversion of redeemable convertible preferred stock to common stock (in shares)	3.1	24.2

Basis of Presentation, Princi_3

Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021segment	Dec. 31, 2020USD ($)
Class of Stock [Line Items]
Number of operating segments | segment	1
Fair Value, Recurring | Fair Value, Inputs, Level 3
Class of Stock [Line Items]
Fair value of convertible notes with related parties | $		$ 36.9

Net Income (Loss) Per Share - S

Net Income (Loss) Per Share - Schedule of Earnings Per Share - Basic (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Net income (loss) per share, basic:
Net income (loss)	$ 22,060	$ (52,847)	$ 13,398	$ 23,106	$ 21,323	$ (11,082)	$ (17,389)	$ 33,347
Less: Accretion of redeemable convertible preferred stock	0			(975)			(1,480)	(2,886)
Less: Undistributed earnings attributable to participating securities	0			(5,129)			0	(7,091)
Net income (loss) attributable to Class A and Class B common stockholders	$ 22,060			$ 17,002			$ (18,869)	$ 23,370
Weighted average shares of Class A and Class B common stock outstanding (in shares)	115,372			80,218			97,159	79,775
Net income (loss) per share attributable to Class A and Class B common stockholders, basic (in dollars per share)	$ 0.19			$ 0.21			$ (0.19)	$ 0.29

Net Income (Loss) Per Share -_2

Net Income (Loss) Per Share - Schedule of Earnings Per Share - Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator:
Net income (loss) attributable to Class A and Class B common stockholders	$ 22,060	$ 17,002	$ (18,869)	$ 23,370
Reallocation of net income attributable to participating securities	0	668	0	808
Interest on convertible notes with related parties, net of tax		132		143
Net income (loss) attributable to Class A and Class B common stockholders, diluted	$ 22,060	$ 17,802	$ (18,869)	$ 24,321
Denominator:
Weighted average shares of Class A and Class B common stock outstanding (in shares)	115,372	80,218	97,159	79,775
Effect of dilutive securities:
Convertible notes with related parties (in shares)	0	3,779	0	1,393
Weighted average shares of Class A and Class B common stock outstanding, diluted (in shares)	126,474	95,844	97,159	93,137
Net income (loss) per share attributable to Class A and Class B common stockholders - diluted (in dollars per share)	$ 0.17	$ 0.19	$ (0.19)	$ 0.26
Options to purchase common stock
Effect of dilutive securities:
Share based payment arrangements (in shares)	10,482	11,847	0	11,969
Restricted stock units
Effect of dilutive securities:
Share based payment arrangements (in shares)	582	0	0	0
Employee stock purchase plan
Effect of dilutive securities:
Share based payment arrangements (in shares)	0	0	0	0
Unvested early exercise common stock
Effect of dilutive securities:
Share based payment arrangements (in shares)	38	0	0	0

Net Income (Loss) Per Share -_3

Net Income (Loss) Per Share - Schedule of Antidilutive Options (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from diluted net income (loss) per share (in shares)	109	8,170	34,364	8,758
Options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from diluted net income (loss) per share (in shares)	0	3,899	15,249	4,966
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from diluted net income (loss) per share (in shares)	21	4,271	5,620	3,792
Redeemable convertible preferred stock, if converted basis
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from diluted net income (loss) per share (in shares)	0	0	11,791	0
Convertible notes with related parties, if converted basis
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from diluted net income (loss) per share (in shares)	0	0	1,639	0
Unvested early exercise common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from diluted net income (loss) per share (in shares)	0	0	35	0
Employee stock purchase plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from diluted net income (loss) per share (in shares)	88	0	30	0

Revenue Information - Narrative

Revenue Information - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)revenueStream	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)revenueStream	Sep. 30, 2020USD ($)	Dec. 31, 2020USD ($)
Revenue from Contract with Customer [Abstract]
Number of revenue streams | revenueStream	2		2
Revenue that was included in deferred revenue balances	$ 20,900,000	$ 13,200,000	$ 12,400,000	$ 14,500,000
Contract assets	0		0		$ 0
Revenue recognized from performance obligations satisfied in previous periods	$ 0	$ 0	$ 0	$ 0

Revenue Information - Schedule

Revenue Information - Schedule of Revenue Streams (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Total revenue	$ 212,672	$ 102,851	$ 521,004	$ 303,798
Subscription
Disaggregation of Revenue [Line Items]
Total revenue	172,525	84,839	424,321	254,206
Performance-based
Disaggregation of Revenue [Line Items]
Total revenue	$ 40,147	$ 18,012	$ 96,683	$ 49,592

Revenue Information - Performan

Revenue Information - Performance Obligations (Details) $ in Millions	Sep. 30, 2021USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 2
Revenue, remaining performance obligation, period	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 4
Revenue, remaining performance obligation, period	1 year

Accrued Expenses (Details)

Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Accrued marketing	$ 12,225	$ 6,006
Accrued bonuses	9,903	11,202
Other accrued expenses	11,358	7,311
Accrued partner expenses	12,124	5,554
Accrued 401(k) contributions	2,202	2,414
Accrued commissions	6,078	3,332
Accrued non-income taxes	8,246	600
Accrued refunds and customer liabilities	4,403	2,423
Employee stock purchase plan contributions	927	0
Total accrued expenses	$ 67,466	$ 38,842

Credit Facility (Details)

Credit Facility (Details) - Line of Credit - USD ($)	1 Months Ended
	Apr. 30, 2021	Sep. 30, 2021
Line of Credit Facility [Line Items]
Line of credit facility	$ 250,000,000
Maximum cash and permitted investments adjustment	$ 100,000,000
Line of credit, amount available		$ 244,200,000
Minimum
Line of Credit Facility [Line Items]
Commitment fee (as a percent)	0.25%
Maximum
Line of Credit Facility [Line Items]
Commitment fee (as a percent)	0.35%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Long-term debt outstanding		0
Letter of Credit
Line of Credit Facility [Line Items]
Long-term debt outstanding		$ 5,800,000

Convertible Notes with Relate_2

Convertible Notes with Related Parties (Details) - Convertible Subordinated Debt - Affiliated Entity - USD ($) $ / shares in Units, shares in Millions	May 26, 2021	Jun. 22, 2020
Related Party Transaction [Line Items]
Convertible notes issued		$ 25,000,000
Convertible debt, threshold percentage of stock price trigger (as a percent)		75.00%
Convertible debt, conversion price (in dollars per share)	$ 8.2909	$ 8.2909
Long-term debt outstanding	$ 25,600,000
Common Class B
Related Party Transaction [Line Items]
Convertible debt, shares converted (in shares)	3.1

Commitment and Contingencies (D

Commitment and Contingencies (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2021USD ($)
Loss Contingencies [Line Items]
Accrued liability for indemnification arrangements	$ 0	$ 0
Non-Income Taxes
Loss Contingencies [Line Items]
Charge for non-income taxes	$ 6,800,000	$ 6,800,000

Common Stock and Redeemable C_2

Common Stock and Redeemable Convertible Preferred Stock (Details) $ / shares in Units, $ in Millions	May 26, 2021shares	May 14, 2021shares	May 31, 2021USD ($)shares	Jan. 31, 2021USD ($)shares	Sep. 30, 2021vote$ / sharesshares	Dec. 31, 2020$ / sharesshares
Class of Stock [Line Items]
Common stock, authorized (in shares)					1,450,000,000
Preferred stock, authorized (in shares)					50,000,000	0
Common stock, par value (in dollars per share) | $ / shares					$ 0.00001
Preferred stock, par value (in dollars per share) | $ / shares					$ 0.00001	$ 0.00001
Common shares repurchased (in shares)			100,000	50,000
Common shares repurchased, amount | $			$ 2.3	$ 0.5
Common Class A
Class of Stock [Line Items]
Common stock, authorized (in shares)					700,000,000	0
Common stock, par value (in dollars per share) | $ / shares					$ 0.00001	$ 0.00001
Number of votes entitled per share | vote					1
Common Class B
Class of Stock [Line Items]
Common stock, authorized (in shares)					700,000,000	137,800,000
Common stock, par value (in dollars per share) | $ / shares					$ 0.00001	$ 0.00001
Number of votes entitled per share | vote					20
Common Class B | Common Stock
Class of Stock [Line Items]
Conversion of redeemable convertible preferred stock to common stock (in shares)	3,100,000	24,200,000

Stock-Based Compensation - Tota

Stock-Based Compensation - Total Stock Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 22,033	$ 1,256	$ 87,625	$ 4,560
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	158	16	911	58
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	2,999	134	15,415	559
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	6,935	737	26,333	2,310
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 11,941	$ 369	$ 44,966	$ 1,633

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands	Apr. 19, 2021USD ($)tranche$ / sharesshares	Aug. 31, 2021shares	Apr. 30, 2021shares	Sep. 30, 2021USD ($)$ / sharesshares	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)$ / sharesshares	Sep. 30, 2020USD ($)	May 14, 2021shares	Dec. 31, 2020USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock purchase plan contributions				$ 927		$ 927			$ 0
Total remaining stock-based compensation expense for unvested stock options				8,300		$ 8,300
Stock based compensation, weighted average period of recognition						1 year 4 months 24 days
Issuance of common stock upon exercise of options (in shares) | shares						115,000
Options vested during period (in shares) | shares			50,000
Nonvested options cancelled (in shares) | shares			100,000
Total stock-based compensation				22,033	$ 1,256	$ 87,625	$ 4,560
Equity Incentive Plan 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares initially reserved for issuance (in shares) | shares								10,700,000
Shares reserved for issuance as a percent of common stock issued and outstanding (as a percent)								5.00%
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock purchase plan contributions				900		900
Total remaining stock-based compensation expense for unvested stock options				400		400
Stock based compensation expense expected to be recognized during first offering period				$ 1,700		$ 1,700
Employee stock purchase plan | ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares initially reserved for issuance (in shares) | shares		1,300,000
Increase in common stock reserved for issuance (as a percent)		1.00%
ESPP discount percentage from market price, beginning of purchase period (as a percent)		15.00%
ESPP purchase price of common stock, percent of market price (as a percent)		85.00%
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, weighted average period of recognition						1 year 7 months 6 days
Restricted stock units granted (in shares) | shares			32,500			5,461,000
Service period						4 years
RSUs outstanding (in shares) | shares	6,900,000			7,426,000		7,426,000			5,451,000
Fair value of RSUs (in dollars per share) | $ / shares	$ 25.04
Value of RSUs	$ 172,600
Total stock-based compensation				$ 15,800		$ 79,200
Weighted average grant date fair value (in dollars per share) | $ / shares				$ 23.70		$ 23.70			$ 5.75
Unrecognized stock based compensation expense				$ 143,600		$ 143,600
Restricted stock units | Equity Incentive Plan 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock granted under 2021 Plan (in shares) | shares						2,500,000
Restricted stock units | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, weighted average period of recognition						3 years 7 months 6 days
Restricted stock units granted (in shares) | shares	1,400,000
Number of vesting tranches | tranche	5
Trading window (in days)	30 days
Total stock-based compensation				1,500		$ 2,100
Expiration period						10 years
Aggregate stock based compensation expense over derived service period	$ 22,800
Accelerated cost				3,800		$ 3,800
Unrecognized stock based compensation expense				$ 20,700		$ 20,700
Restricted stock units | Chief Executive Officer | Monte Carlo Simulation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period						4 years 1 month 6 days
Fair value assumptions, expected dividend yield						0.00%
Fair value assumptions, expected term						10 years
Fair value assumptions, estimated volatility (as a percent)						59.00%
Fair value assumptions, risk-free rate (as a percent)						2.00%
Weighted average grant date fair value (in dollars per share) | $ / shares				$ 16.34		$ 16.34
Restricted stock units | Chief Executive Officer | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period						1 year
RSUs vested in period, amount per share (in dollars per share) | $ / shares	$ 67.61
Restricted stock units | Chief Executive Officer | Minimum | Monte Carlo Simulation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period						3 years 2 months 12 days
Restricted stock units | Chief Executive Officer | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period						5 years
RSUs vested in period, amount per share (in dollars per share) | $ / shares	$ 157.75
Restricted stock units | Chief Executive Officer | Maximum | Monte Carlo Simulation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period						5 years
Options to purchase common stock | Equity Incentive Plan 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock granted under 2021 Plan (in shares) | shares						100,000

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Stock Option Activity (Details) - $ / shares	9 Months Ended
	Sep. 30, 2021
Number of Options Outstanding
Exercised (in shares)	(115,000)
Equity Incentive Plans, 2012, 2014, 2021
Number of Options Outstanding
Beginning balance (in shares)	19,373,000
Granted (in shares)	254,000
Exercised (in shares)	(8,168,000)
Forfeited/cancelled (in shares)	(195,000)
Ending balance (in shares)	11,264,000
Exercisable (in shares)	10,052,000
Weighted Average Exercise Price Per Share
Beginning balance, outstanding (in dollars per share)	$ 2.09
Granted (in dollars per share)	2
Exercised (in dollars per share)	1.81
Forfeited/Cancelled (in dollars per share)	4.55
Ending balance, outstanding (in dollars per share)	2.24
Exercisable (in dollars per share)	$ 2.03

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of RSU Information (Details) - Restricted stock units - $ / shares	9 Months Ended
	Sep. 30, 2021	Apr. 19, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs Eligible to Vest (in shares)	7,426,000	6,900,000	5,451,000
Minimum Service Period (in years)	4 years
Tranche 1 | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs Eligible to Vest (in shares)	279,600
Company Stock Price Target (in dollars per share)	$ 67.61
Minimum Service Period (in years)	1 year
Tranche 2 | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs Eligible to Vest (in shares)	279,600
Company Stock Price Target (in dollars per share)	$ 82.63
Minimum Service Period (in years)	2 years
Tranche 3 | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs Eligible to Vest (in shares)	279,600
Company Stock Price Target (in dollars per share)	$ 102.66
Minimum Service Period (in years)	3 years
Tranche 4 | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs Eligible to Vest (in shares)	279,600
Company Stock Price Target (in dollars per share)	$ 127.70
Minimum Service Period (in years)	4 years
Tranche 5 | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs Eligible to Vest (in shares)	279,600
Company Stock Price Target (in dollars per share)	$ 157.75
Minimum Service Period (in years)	5 years

Stock-Based Compensation - Su_2

Stock-Based Compensation - Summary of RSU Activity (Details) - Restricted stock units - $ / shares	Apr. 19, 2021	Apr. 30, 2021	Sep. 30, 2021
Number of Shares
Beginning balance (in shares)			5,451,000
Granted (in shares)		32,500	5,461,000
Vested (in shares)			(2,932,000)
Forfeited/Canceled (in shares)			(554,000)
Ending balance (in shares)	6,900,000		7,426,000
Weighted Average Grant Date Fair Value Per Share
Beginning balance (in dollars per share)			$ 5.75
Granted (in dollars per share)			22.61
Vested (in dollars per share)			25.08
Forfeited/Canceled (in dollars per share)			19.25
Ending balance (in dollars per share)			$ 23.70

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (4,467)	$ 187	$ (17,139)	$ 519
Effective income tax rate (as a percent)	(25.00%)	1.00%	50.00%	2.00%

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event	1 Months Ended
	Oct. 31, 2021segmentshares
Performance Shares
Subsequent Event [Line Items]
Number of performance-based RSUs approved for issuance (in shares)	105,000
Restricted stock units
Subsequent Event [Line Items]
Number of tranches | segment	15
Number of units for reach tranche	7,000
Award vesting period	6 months
Award vesting (as a percent)	6.25%