Coursera (COUR) 10-Q 11 May 21 2021 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Mar. 31, 2021	Apr. 30, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2021
Document Fiscal Year Focus	2021
Entity File Number	001-40275
Entity Registrant Name	COURSERA, INC.
Entity Tax Identification Number	45-3560292
Entity Address, Address Line One	381 E. Evelyn Ave.
Entity Address, City or Town	Mountain View
Entity Incorporation State Country Code	DE
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94041
City Area Code	650
Local Phone Number	963-9884
Title of 12(b) Security	Common Stock, $0.00001 par value
Trading Symbol	COUR
Security Exchange Name	NYSE
Entity Current Reporting Status	No
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 Common Stock, Shares Outstanding		135,770,469
Entity Central Index Key	0001651562
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q1

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 158,072	$ 79,878
Marketable securities	122,729	205,402
Accounts receivable, net of allowance for doubtful accounts of $48 and $146 as of December 31, 2020 and March 31, 2021, respectively	35,582	40,721
Deferred costs	16,149	14,077
Prepaid expenses and other current assets	18,666	14,993
Total current assets	351,198	355,071
Property, equipment and software, net	21,080	18,644
Operating lease right-of-use assets	20,276	21,622
Intangible assets, net	10,313	10,570
Restricted cash	2,548	2,548
Other assets	9,407	9,169
Total assets	414,822	417,624
Current liabilities:
Educator partners payable	41,360	39,005
Other accounts payable	9,813	12,897
Accrued compensation and benefits	8,354	12,997
Operating lease liabilities, current	7,973	7,926
Deferred revenue, current	85,254	76,080
Other current liabilities	5,052	4,739
Total current liabilities	157,806	153,644
Operating lease liabilities, non-current	16,676	18,305
Other liabilities	623	644
Deferred revenue, non-current	3,513	4,562
Total liabilities	178,618	177,155
Commitments and contingencies (Note 12)
Redeemable convertible preferred stock:
$0.00001 par value - authorized, 76,420,805 shares as of December 31, 2020 and March 31, 2021; issued and outstanding, 75,305,400 shares as of December 31, 2020 and March 31, 2021; and aggregate liquidation preference, $464,036 as of December 31, 2020 and March 31, 2021	462,293	462,293
Stockholders’ (deficit) equity:
Common stock $0.00001 par value - authorized, 162,000,000 and shares as of December 31, 2020 and March 31, 2021, respectively; issued and outstanding, 40,301,290 and 43,193,216 shares as of December 31, 2020 and March 31, 2021, respectively
Additional paid-in capital	140,803	126,408
Treasury stock—at cost 2,747,938 shares as of December 31, 2020 and March 31, 2021	(4,701)	(4,701)
Accumulated other comprehensive income	23	20
Accumulated deficit	(362,214)	(343,551)
Total stockholders' deficit	(226,089)	(221,824)
Total liabilities, redeemable convertible preferred stock, stockholders’ deficit	$ 414,822	$ 417,624

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts	$ 146	$ 48
Temporary equity, par value (in dollars per share)	$ 0.00001	$ 0.00001
Temporary equity, shares authorized (in shares)	76,420,805	76,420,805
Temporary equity, shares issued (in shares)	75,305,400	75,305,400
Temporary equity, shares outstanding (in shares)	75,305,400	75,305,400
Temporary equity, liquidation preference	$ 464,036	$ 464,036
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, shares authorized (in shares)	162,000,000	162,000,000
Common stock, shares issued (in shares)	43,193,216	40,301,290
Common stock, shares outstanding (in shares)	43,193,216	40,301,290
Treasury stock, shares	2,747,938	2,747,938

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenue	$ 88,362	$ 53,847
Cost of revenue	38,826	24,951
Gross profit	49,536	28,896
Operating expenses:
Research and development	22,140	15,783
Sales and marketing	32,613	20,696
General and administrative	13,144	7,086
Total operating expenses	67,897	43,565
Loss from operations	(18,361)	(14,669)
Interest income	80	696
Other expense, net	(7)	(252)
Loss before income taxes	(18,288)	(14,225)
Income tax expense	375	89
Net loss	$ (18,663)	$ (14,314)
Net loss per share attributable to common stockholders—basic and diluted (in dollars per share)	$ (0.45)	$ (0.40)
Weighted average shares used in computing net loss per share attributable to common stockholders—basic and diluted (in shares)	41,218,355	35,666,172

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (18,663)	$ (14,314)
Change in unrealized gain (loss) on marketable securities, net of tax	3	(47)
Comprehensive loss	$ (18,660)	$ (14,361)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Deficit - USD ($) $ in Thousands	Total	Redeemable Convertible Preferred Stock	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2019	$ (186,999)			$ 94,364	$ (4,701)	$ 74	$ (276,736)
Beginning balance (in shares) at Dec. 31, 2019		67,658,342
Beginning balance at Dec. 31, 2019		$ 332,681
Beginning balance (in shares) at Dec. 31, 2019			35,682,740
Issuance of common stock upon exercise of options	421			421
Issuance of common stock upon exercise of options (in shares)			199,560
Issuance of restricted stock awards (in shares)			15,000
Vesting of early exercise stock options	75			75
Stock compensation expense	3,170			3,170
Change in unrealized gain (loss) on marketable securities, net of tax	(47)					(47)
Net loss	(14,314)						(14,314)
Ending balance at Mar. 31, 2020	(197,694)			98,030	(4,701)	27	(291,050)
Ending balance (in shares) at Mar. 31, 2020		67,658,342
Ending balance at Mar. 31, 2020		$ 332,681
Ending balance (in shares) at Mar. 31, 2020			35,897,300
Beginning balance at Dec. 31, 2020	$ (221,824)			126,408	(4,701)	20	(343,551)
Beginning balance (in shares) at Dec. 31, 2020	75,305,400	75,305,400
Beginning balance at Dec. 31, 2020	$ 462,293	$ 462,293
Beginning balance (in shares) at Dec. 31, 2020	40,301,290		40,301,290
Issuance of common stock upon exercise of options	$ 8,564			8,564
Issuance of common stock upon exercise of options (in shares)			2,891,926
Vesting of early exercise stock options	21			21
Stock compensation expense	5,810			5,810
Change in unrealized gain (loss) on marketable securities, net of tax	3					3
Net loss	(18,663)						(18,663)
Ending balance at Mar. 31, 2021	$ (226,089)			$ 140,803	$ (4,701)	$ 23
Ending balance (in shares) at Mar. 31, 2021	75,305,400	75,305,400
Ending balance at Mar. 31, 2021	$ 462,293	$ 462,293					$ (362,214)
Ending balance (in shares) at Mar. 31, 2021	43,193,216		43,193,216

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net loss	$ (18,663)	$ (14,314)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,931	1,993
Stock-based compensation	5,284	3,014
Amortization or accretion of marketable securities	177	(149)
Other	98	40
Changes in operating assets and liabilities:
Accounts receivable, net	5,041	(3,414)
Prepaid expenses and other assets	260	909
Operating lease right-of-use assets	1,345	1,264
Educator partners and other accounts payable	(3,032)	2,133
Accrued and other liabilities	(4,330)	(7,052)
Operating lease liabilities	(1,582)	(1,368)
Deferred revenue	8,124	9,408
Net cash used in operating activities	(4,347)	(7,536)
Cash flows from investing activities:
Purchases of marketable securities		(5,939)
Proceeds from maturities of marketable securities	82,500	63,359
Purchases of property, equipment, and software	(307)	(582)
Capitalized internal-use software costs	(3,985)	(1,774)
Net cash provided by investing activities	78,038	55,064
Cash flows from financing activities:
Proceeds from exercise of stock options	8,564	421
Payment of deferred offering costs	(4,061)
Net cash provided by financing activities	4,503	421
Net increase in cash, cash equivalents, and restricted cash	78,194	47,949
Cash, cash equivalents, and restricted cash—Beginning of period	82,426	59,845
Cash, cash equivalents, and restricted cash—End of period	160,620	107,794
Cash, cash equivalents, and restricted cash—End of period
Cash and cash equivalents	158,072	103,935
Restricted cash	2,548	3,090
Restricted cash in prepaid expenses and other current assets		769
Supplemental disclosures of cash flow information:
Cash paid for interest		534
Cash paid for income taxes	530	157
Supplemental disclosures of noncash investing and financing activities:
Vesting of early exercised stock options	21	75
Stock-based compensation capitalized as internal-use software costs	526	$ 156
Unpaid deferred offering costs	2,182
Content Asset
Cash flows from investing activities:
Purchases of content assets	$ (170)

Organization and Description of

Organization and Description of Business	3 Months Ended
	Mar. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization and Description of Business	1. ORGANIZATION AND DESCRIPTION OF BUSINESS Description of Business Coursera, Inc., a Delaware corporation (the “Company”), is an online learning platform that connects learners, educators, and institutions with the goal of providing world-class educational content that is affordable, accessible, and relevant. The Company combines content, data, and technology into a platform that is customizable and extensible to both individual learners and institutions. The Company partners with leading university and industry partners (“educator partners”) to bring quality higher education to a broad range of individuals, businesses, organizations, and governments. The Company also sells directly to institutions, including employers, colleges and universities, and governments, to enable their employees, students, and citizens to gain critical skills aligned to the job markets of today and tomorrow. The Company’s corporate headquarters are located in Mountain View, California. Initial Public Offering On April 5, 2021, the Company completed its initial public offering ("IPO") of common stock, in which it sold 14,664,776 shares. The shares were sold at a price to the public of $ 33.00 per share for net proceeds of $ 452,482 , after deducting underwriting discounts and commissions of $ 31,456 . Additionally, offering costs incurred by the Company were expected to total approximately $ 6,243 . Upon the closing of the Company’s IPO, all outstanding shares of its redeemable convertible preferred stock automatically converted into 75,305,400 shares of common stock on a one -for-one basis. On April 19, 2021, the underwriters exercised in full the right to purchase 2,359,500 additional shares of common stock from the Company, resulting in additional net proceeds of $ 72,802 after deducting underwriting discounts of $ 5,061 .

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	2. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation —The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”), and following the requirements of the Securities and Exchange Commission (“SEC”), for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by GAAP can be condensed or omitted. These unaudited condensed consolidated financial statements have been prepared on the same basis as the Company's annual consolidated financial statements and, in the opinion of management, reflect all adjustments, consisting only of normal recurring adjustments, that are necessary for a fair statement of the Company's financial information. The results of operations for the three months ended March 31, 2021 are not necessarily indicative of the results to be expected for the year ending December 31, 2021 or for any other interim period or for any other future year. The balance sheet as of December 31, 2020 has been derived from audited consolidated financial statements at that date but does not include all information required by GAAP for annual consolidated financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements contained in the Company's final prospectus filed pursuant to Rule 424(b) under the Securities Act of 1933, as amended, with the SEC on March 31, 2021 (the “Prospectus”). Principles of Consolidation —The unaudited condensed consolidated financial statements include the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Segment Information —The Company defines its segments as those operations the chief operating decision maker (“CODM”), determined to be the Chief Executive Officer of the Company, regularly reviews to allocate resources and assess performance. For the three months ended March 31, 2020 and 2021, the Company operated under three segments: Consumer, Enterprise, and Degrees. The Company continually monitors and reviews its segment reporting structure in accordance with Accounting Standards Codification (“ASC”) Topic 280, Segment Reporting, to determine whether any changes have occurred that would impact its reportable segments. For further information on the Company’s segment reporting, see Note 15 “Segment and Geographic Information.” Use of Estimates —The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities and related disclosures at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. On an ongoing basis, the Company evaluates its estimates, including those related to fair value of common stock and stock-based awards; period of benefit for capitalized commissions; internal-use software development costs; useful lives of long-lived assets; the carrying value of operating lease right-of-use assets; valuation of intangible assets and income tax expense, including the valuation of deferred tax assets and liabilities, among others. The World Health Organization declared in March 2020 that the recent outbreak of the coronavirus disease (“COVID-19") constitutes a pandemic. The COVID-19 pandemic has caused general business disruption worldwide beginning in January 2020. The global impact of COVID-19 continues to rapidly evolve, and the Company will continue to monitor the situation and the effects on its business and operations closely. The Company does not yet know the full extent of potential impacts on its business or operations or on the global economy as a whole, particularly if the COVID-19 pandemic continues and persists for an extended period of time. Given the uncertainty, the Company cannot reasonably estimate the impact on its future results of operations, cash flows, or financial condition. As of the date of issuance of the condensed consolidated financial statements, the Company is not aware of any specific event or circumstance that would require it to update its estimates, judgments, or the carrying value of its assets or liabilities. These estimates may change as new events occur and additional information is obtained and are recognized in the consolidated financial statements as soon as they become known. Actual results could differ from those estimates, and any such differences may be material to the Company’s condensed consolidated financial statements. Summary of Significant Accounting Policies There have been no significant changes to the Company's significant accounting policies as of and for the three months ended March 31, 2021, as compared to the significant accounting policies described in the Prospectus. Concentration of Credit Risk —Financial instruments that potentially subject the Company to concentration of credit risk consist of cash, cash equivalents, and marketable securities. The Company invests only in high-credit-quality instruments and maintains its cash equivalents and marketable securities in fixed-income securities. The Company places its cash primarily with domestic financial institutions that are federally insured within statutory limits. For purposes of assessing concentration of credit risk and significant customers, a group of customers under common control or customers that are affiliates of each other are regarded as a single customer. For the three months ended March 31, 2020 and 2021, the Company did not have any customers that accounted for more than 10 % of the Company’s revenue. As of December 31, 2020, the Company had one customer that accounted for 21 % of its net accounts receivable balance. As of March 31, 2021, the Company had no customers that accounted for more than 10 % of its net accounts receivable balance. New Accounting Pronouncements Recently Adopted The Company is an emerging growth company, as defined in the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). Under the JOBS Act, emerging growth companies can delay adopting new or revised accounting standards issued subsequent to the enactment of the JOBS Act until those standards apply to private companies. The Company has elected to use this extended transition period for complying with new or revised accounting standards that have different effective dates for public and private companies until the earlier of the date that it (i) is no longer an emerging growth company or (ii) affirmatively and irrevocably opts out of the extended transition period provided in the JOBS Act. As a result, the consolidated financial statements may not be comparable to companies that comply with the new or revised accounting pronouncements as of public company effective dates. The JOBS Act does not preclude an emerging growth company from early adopting new or revised accounting standards. The Company early adopted ASU 2014-09, Revenue from Contracts with Customers (Topic 606) , effective January 1, 2017 and ASU No. 2016-02, Leases (ASC 842) effective January 1, 2020. The Company expects to use the extended transition period for any other new or revised accounting standards during the period for which the Company remains an emerging growth company. New Accounting Pronouncements Not Yet Adopted In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes . This standard simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in Topic 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period, and the recognition of deferred tax liabilities for outside basis differences. The guidance also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates, and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill and the allocation of consolidated income taxes to separate financial statements of entities not subject to income tax. ASU 2019-12 will be effective for the Company in 2022. Upon adoption, the Company must apply certain aspects of this standard retrospectively for all periods presented while other aspects are applied on a modified retrospective basis through a cumulative-effect adjustment to accumulated deficit as of the beginning of the fiscal year of adoption. The Company is currently evaluating the impact of this update on its consolidated financial statements and related disclosures. In August 2018, the FASB issued ASU 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract . This update requires capitalization of the implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. Further, the standard also requires the Company to expense the capitalized implementation costs of a hosting arrangement over the term of the hosting arrangement. ASU 2018-15 will be effective for the Company for the annual period 2021 and early adoption for interim periods is permitted. The Company is currently evaluating the impact of this update on its consolidated financial statements and related disclosures. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses , which provides new authoritative guidance with respect to the measurement of credit losses on financial instruments. This update changes the impairment model for most financial assets and certain other instruments by introducing a current expected credit loss (“CECL”) model. The CECL model is a more forward-looking approach based on expected losses rather than incurred losses, requiring entities to estimate and record losses expected over the remaining contractual life of an asset. The guidance will be effective for the Company in 2023 and early adoption beginning in 2019 is permitted. The Company is currently evaluating the impact from the adoption of this guidance on the consolidated financial statements and related disclosures.

Revenue Recognition

Revenue Recognition	3 Months Ended
	Mar. 31, 2021
Revenue Recognition [Abstract]
Revenue Recognition	3. REVENUE RECOGNITION Contract Balances — The Company’s contract assets and liabilities as of January 1, 2020, December 31, 2020 and March 31, 2021 were as follows: January 1, December 31, March 31, Contract assets: Accounts receivable $ 16,592 $ 39,976 $ 28,043 Unbilled revenue 64 745 7,539 Total contract assets $ 16,656 $ 40,721 $ 35,582 Contract liabilities: Deferred revenue $ 41,607 $ 80,642 $ 88,767 Total contract liabilities $ 41,607 $ 80,642 $ 88,767 Revenue recognized during the three months ended March 31, 2020 and 2021 that was included in the deferred revenue balances at the beginning of the year was $ 19,595 and $ 37,522 , respectively. There were no impairment losses recorded on contract assets during the three months ended March 31, 2020 and 2021. Remaining Performance Obligations —Remaining performance obligations are future revenue that are under noncancelable contracts but have not yet been recognized. As of March 31, 2021, the Company had remaining performance obligations of $ 193,918 and expects to recognize approximately 63 % as revenue over the next twelve months and the remainder thereafter. Costs to Obtain and Fulfill a Contract —During the three months ended March 31, 2020 and 2021, the Company capitalized $ 1,333 and $ 2,289 , respectively, of commissions and related payroll tax expenditures and amortized $ 769 and $ 1,666 , respectively, to sales and marketing expense. As of March 31, 2020 and 2021, the amount of deferred commissions and related payroll taxes included in deferred costs and in other assets was $ 3,026 and $ 3,152 , and $ 6,581 and $ 6,600 , respectively.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. FAIR VALUE MEASUREMENTS — The Company’s assets and liabilities that were measured at fair value by level within the fair value hierarchy as of December 31, 2020 and March 31, 2021, were as follows: As of December 31, 2020 Fair Value Level 1 Level 2 Financial assets: Cash equivalents—money market funds $ 58,997 $ 58,997 $ — Marketable securities: Corporate debt securities 8,551 — 8,551 Commercial paper 26,469 — 26,469 U.S. government Treasury bills 170,382 170,382 — Total financial assets $ 264,399 $ 229,379 $ 35,020 As of March 31, 2021 Fair Value Level 1 Level 2 Financial assets: Cash equivalents—money market funds $ 133,597 $ 133,597 $ — Marketable securities: Corporate debt securities 5,500 — 5,500 Commercial paper 16,988 — 16,988 U.S. government Treasury bills 100,241 100,241 — Total financial assets $ 256,326 $ 233,838 $ 22,488 The Company remeasures certain assets, including intangible assets and its equity-method investment in a private company, at fair value on a nonrecurring basis when there are identifiable events or changes in circumstances that may have a significant adverse impact on the fair value of these assets. No such events or changes occurred during the three months ended March 31, 2020 and 2021.

Marketable Securities

Marketable Securities	3 Months Ended
	Mar. 31, 2021
Investments Debt And Equity Securities [Abstract]
Marketable Securities	5. MARKETABLE SECURITIES The following table presents the Company’s available-for-sale marketable securities as of December 31, 2020 and March 31, 2021: As of December 31, 2020 Amortized Gross Gross Estimated Corporate debt $ 8,547 $ 4 $ — $ 8,551 Commercial paper 26,469 — — 26,469 U.S. government Treasury bills 170,366 17 ( 1 ) 170,382 Total marketable securities $ 205,382 $ 21 $ ( 1 ) $ 205,402 As of March 31, 2021 Amortized Gross Gross Estimated Corporate debt $ 5,501 $ — $ ( 1 ) $ 5,500 Commercial paper 16,988 — — 16,988 U.S. government Treasury bills 100,217 24 — 100,241 Total marketable securities $ 122,706 $ 24 $ ( 1 ) $ 122,729 The gross realized gains and gross realized losses related to the Company’s marketable securities were not material for the three months ended March 31, 2020 and 2021. The following table presents the cost basis and fair value of available-for-sale marketable securities by contractual maturity date as of December 31, 2020 and March 31, 2021: December 31, 2020 March 31, 2021 Amortized Estimated Amortized Estimated Due in one year or less $ 205,382 $ 205,402 $ 122,706 $ 122,729 Investments in an unrealized loss position consisted of the following as of December 31, 2020 and March 31, 2021: December 31, 2020 March 31, 2021 Fair Gross Fair Gross Corporate debt $ — $ — $ 5,500 $ ( 1 ) U.S. government Treasury bills 20,201 ( 1 ) — — Total investments in an unrealized loss position $ 20,201 $ ( 1 ) $ 5,500 $ ( 1 ) As of December 31, 2020 and March 31, 2021, no investments were in a continuous unrealized loss position for more than 12 months. The Company does not intend to sell any of these investments and it is not more likely than not that the Company would be required to sell these investments before recovery of their amortized cost basis, which may be at maturity.

Consolidated Balance Sheet Comp

Consolidated Balance Sheet Components	3 Months Ended
	Mar. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Consolidated Balance Sheet Components	6. CONSOLIDATED BALANCE SHEET COMPONENTS Property, Equipment and Software— Property, equipment and software as of December 31, 2020 and March 31, 2021, consisted of the following: Estimated December 31, 2020 March 31, 2021 Internal-use software 2 years $ 21,582 $ 26,020 Computer equipment and software 2 years 2,928 3,264 Leasehold improvements Shorter of useful life and 7,057 7,071 Furniture and fixtures 5 years 2,973 3,051 Total property, equipment and software 34,540 39,406 Less accumulated depreciation and amortization ( 15,896 ) ( 18,326 ) Property, equipment and software—net $ 18,644 $ 21,080 Depreciation and amortization expense related to property, equipment and software for the three months ended March 31, 2020 and 2021, was $ 1,627 and $ 2,504 , respectively, which included amortization expense of internal-use software of $ 1,156 and $ 1,830 respectively, that is recorded within cost of revenue in the condensed consolidated statement of operations. Intangible Assets — Intangible assets, net as of December 31, 2020 and March 31, 2021 consisted of the following: December 31, 2020 March 31, 2021 Estimated Gross Accumulated Net Gross Accumulated Net Assembled workforce 3 years $ 181 $ ( 83 ) $ 98 $ 181 $ ( 98 ) $ 83 Developed technology 6 years 8,446 ( 1,930 ) 6,516 8,446 ( 2,277 ) 6,169 Content assets 5 years 3,956 — 3,956 4,126 ( 65 ) 4,061 Intangible assets $ 12,583 $ ( 2,013 ) $ 10,570 $ 12,753 $ ( 2,440 ) $ 10,313 During the three months ended March 31, 2021, the Company added $ 170 of content assets. Intangible assets amortization expense was $ 366 and $ 427 for the three months ended March 31, 2020 and 2021, respectively. As of March 31, 2021, the remaining amortization period was 1.4 years for assembled workforce, 4.4 years for developed technology and 4.9 years for content assets. Amortization of assembled workforce is included in research and development expenses, and amortization of developed technology and content assets is included in cost of revenue in the condensed consolidated statements of operations. As of March 31, 2021, future expected amortization expense for intangible assets was as follows: Years Ending December 31 Remainder of 2021 $ 1,722 2022 2,270 2023 2,232 2024 2,237 2025 1,711 2026 141 Total $ 10,313

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	7. INCOME TAXES The provision or benefit from income taxes for interim periods is determined using an estimate of our annual effective tax rate, adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter, the Company updates the estimate of the annual effective tax rate, and if the estimated tax rate changes, the Company records a cumulative adjustment. The income tax expense for the three months ended March 31, 2020 and 2021 resulted in an effective tax rate of ( 0.63 )% and ( 2.05 )%, respectively. The difference between the effective tax rate and the U.S. federal statutory rate is primarily due to foreign operations, excess tax benefits related to stock-based compensation, and a valuation allowance established on the Company's federal and state net deferred tax assets. Due to tax losses and offsetting valuation allowance, the Company did not record a provision for U.S. income taxes in either period. As of March 31, 2021, the Company has provided a valuation allowance against certain federal and state deferred tax assets. Management continues to evaluate the realizability of deferred tax assets and the related valuation allowance. If management's assessment of the deferred tax assets or the corresponding valuation allowance were to change, the Company would record the related adjustment to income during the period in which management makes the determination. The Company is subject to taxation in the U.S. and various foreign jurisdictions. The tax years from inception in 2011 through March 31, 2020 remain subject to examination by U.S. and California taxing authorities, as well as taxing authorities in various other state and foreign jurisdictions. The Company is not under examination in any jurisdiction.

Redeemable Convertible Preferre

Redeemable Convertible Preferred Stock	3 Months Ended
	Mar. 31, 2021
Temporary Equity Disclosure [Abstract]
Redeemable Convertible Preferred Stock	8. REDEEMABLE CONVERTIBLE PREFERRED STOCK Redeemable Convertible Preferred Stock — As of December 31, 2020 and March 31, 2021, redeemable convertible preferred stock consisted of the following: December 31, 2020 and March 31, 2021 Shares Issue Date Authorized Outstanding Issue Price Carrying Liquidation A December 2011 and June 2012 23,023,168 23,023,168 $ 0.9628 $ 22,127 $ 22,167 B June 2013, July 2013, and October 2013 12,849,539 12,849,539 4.9029 62,901 63,000 C August 2015 and September 2015 12,091,062 12,091,062 5.0935 61,351 61,586 D April 2017, June 2017, September 2017, and October 2017 10,900,409 10,900,409 7.50 81,482 81,753 E April 2019 and July 2019 9,166,666 8,794,164 12.00 104,820 105,530 F July 2020 8,389,961 7,647,058 17.00 129,612 130,000 76,420,805 75,305,400 $ 462,293 $ 464,036 Upon the closing of the Company’s IPO, all outstanding shares of its redeemable convertible preferred stock automatically converted into 75,305,400 shares of Common Stock on a one-to one basis (Note 16).

Stockholders' Deficit

Stockholders' Deficit	3 Months Ended
	Mar. 31, 2021
Stockholders Equity Note [Abstract]
Stockholders' Deficit	9. STOCKHOLDERS’ DEFICIT Stock Incentive Plans —In 2013, the Company adopted the Coursera, Inc. Stock Incentive Plan (“Stock Incentive Plan”) and in 2014, adopted the Coursera, Inc. 2014 Executive Stock Incentive Plan (together, the “Predecessor Plans”), pursuant to which the Company has granted a combination of incentive and nonstatutory stock options and restricted stock units (“RSU”s). Under the Predecessor Plans, 65,547,319 shares were available for grant as stock-based awards to employees, directors, and service providers as of December 31, 2020. As of March 31, 2021, and in connection with the effectiveness of the 2021 Plan as defined below, shares previously reserved for issuance under the Predecessor Plans (to the extent not subject to outstanding equity awards prior to the date the IPO was declared effective) were no longer available for future issuance under the Predecessor Plan; however, the Predecessor Plans continue to govern the terms and conditions of the outstanding awards granted pursuant to the Predecessor Plans. Under the Predecessor Plans, 8,098,484 shares and zero shares of the Company’s common stock were reserved for future grants as of December 31, 2020 and March 31, 2021, respectively. During the three months ended March 31, 2020 and 2021, shares reserved for issuance did no t increase under the Predecessor Plans. The Company adopted the 2021 Stock Incentive Plan (the "2021 Plan") and 2021 Employee Stock Purchase Plan (the "ESPP") in February 2021, which became effective on March 30, 2021 when the registration statement for the IPO was declared effective (collectively the 2021 Plan, the ESPP and the Predecessor Plans are referred to as the "Plans"). The 2021 Plan provides for the granting of incentive and nonstatutory stock options, RSUs and other equity awards. As of March 31, 2021, 15,400,000 shares of the Company's common stock, plus certain automatic annual increases in the number of shares of the Company's common stock reserved for future issuance under the 2021 Plan, and any shares subject to outstanding awards under the Predecessor Plans after the effective date of the 2021 Plan that are subsequently (i) forfeited or terminated, (ii) not issued because such award is settled in cash, or (iii) withheld or reacquired to satisfy the applicable exercise, strike, or purchase price, or a tax withholding obligation, were reserved for future issuance under the 2021 Plan. As of March 31, 2021, 2,800,000 shares of the Company's common stock, plus certain automatic annual increases in the number of shares of the Company's common stock, were reserved for issuance under the ESPP. Stock Options —The Company may grant options at prices not less than the fair market value at the date of grant. These options generally expire 10 years from the date of grant. Incentive stock options and nonstatutory options generally vest ratably over a four-year service period. Stock option activity under the Plans for the three months ended March 31, 2021 was as follows: Number of Weighted- Weighted- Aggregate Balance—December 31, 2020 32,458,408 $ 4.60 7.75 $ 625,058 Granted — — Exercised ( 2,891,926 ) 2.96 Canceled ( 257,757 ) 5.91 Balance—March 31, 2021 29,308,725 $ 4.75 7.55 $ 1,179,580 Options vested 13,962,319 $ 2.97 6.46 $ 586,846 Aggregate intrinsic value represents the difference between the exercise price of the options and the estimated fair value of the Company’s common stock as determined by the Board of Directors. The aggregate intrinsic value of options exercised was $ 102,025 for the three months ended March 31, 2021. RSUs —During the year ended December 31, 2020, the Company began granting RSUs to its employees and directors with service-based and performance-based vesting conditions, both of which must be satisfied in order for RSUs to vest. The service-based vesting condition for these awards is typically satisfied over four years with a cliff vesting period of one year and continued vesting quarterly thereafter. The performance-based vesting condition is satisfied on the earlier of (i) a change in control event or (ii) the first sale of the Company’s common stock pursuant to an initial public offering. Both events are not deemed probable until consummated. As the first sale of the Company’s common stock pursuant to its IPO took place on April 5, 2021, all stock-based compensation expense related to RSUs remained unrecognized as of March 31, 2021. RSU activity during the three months ended March 31, 2021 was as follows: Three Months Ended March 31, 2021 Number of Weighted- Aggregate Unvested balance—December 31, 2020 3,276,600 $ 17.92 $ 19,454 Granted 2,904,871 34.82 Forfeited ( 30,200 ) 27.02 Unvested balance—March 31, 2021 6,151,271 $ 25.86 $ 276,807 Stock-Based Compensation Expense —The Company estimates the fair value of stock-based compensation utilizing the Black-Scholes option-pricing model, which is dependent upon several variables, such as the expected option term, expected volatility of the Company’s stock price over the expected term, expected risk-free interest rate over the expected option term, and expected dividend yield rate over the expected option term. These amounts are estimates and, thus, may not be reflective of actual future results, nor amounts ultimately realized by recipients of these grants. The Company recognizes compensation on a straight-line basis over the requisite vesting period for each award. Stock-based compensation expense for the three months ended March 31, 2020 and 2021 is classified in the condensed consolidated statements of operations as follows: Three Months Ended March 31, 2020 2021 Cost of revenue $ 110 $ 107 Research and development 1,277 2,028 Sales and marketing 709 1,347 General and administrative 918 1,802 Total $ 3,014 $ 5,284 The Company capitalized $ 156 and $ 526 of stock-based compensation related to its internal-use software during the three months ended March 31, 2020 and 2021, respectively. As of March 31, 2021, there was a total of $ 58,732 unrecognized employee compensation cost related to unvested stock options, which is expected to be recognized over a weighted-average period of approximately 2.55 years. In addition, as of March 31, 2021, total unrecognized compensation cost related to unvested RSUs was $ 159,877 , which is expected to be recognized over a weighted-average period of approximately 2.48 years if the first sale of the Company’s common stock pursuant to an initial public offering had occurred on March 31, 2021 using an accelerated attribution method. Common Stock Reserved for Issuance — The Company’s common stock reserved for future issuance as of December 31, 2020 and March 31, 2021 was as follows: December 31, 2020 March 31, 2021 Conversion of convertible preferred stock 75,305,400 75,305,400 Stock options outstanding 32,458,408 29,308,725 RSUs outstanding 3,276,600 6,151,271 Shares available for future grants 8,098,484 18,213,838 Total shares of common stock reserved 119,138,892 128,979,234

Net Loss Per Share

Net Loss Per Share	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Net Loss Per Share	10. NET LOSS PER SHARE The following table presents the calculation of basic and diluted net loss per share attributable to common stockholders for the three months ended March 31, 2020 and 2021: Three Months Ended March 31, 2020 2021 Numerator: Net loss attributable to common stockholders $ ( 14,314 ) $ ( 18,663 ) Denominator: Weighted-average shares used in computing net loss per share 35,666,172 41,218,355 Net loss per share attributable to common stockholders—basic and $ ( 0.40 ) $ ( 0.45 ) The following potentially dilutive securities were excluded from the computation of diluted net loss per share calculations for the three months ended March 31, 2020 and 2021 because the impact of including them would have been anti-dilutive: Three Months Ended March 31, 2020 2021 Redeemable convertible preferred stock 67,658,342 75,305,400 Common stock options 30,127,268 29,308,725 Restricted stock units — 6,151,271 Common stock warrants 571,250 — Shares subject to repurchase 71,251 39,584 Total 98,428,111 110,804,980

Leases

Leases	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Leases	11. LEASES The Company has entered into various non-cancelable office space operating leases with lease periods expiring through November 2024. These leases do not contain residual value guarantees, covenants, or other restrictions.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	12. COMMITMENTS AND CONTINGENCIES Purchase Obligations— Purchase obligations relate mainly to a third-party cloud infrastructure agreement and subscription arrangements used to facilitate the Company’s operations as well as an advertising services agreement. As of March 31, 2021, the Company had approximately $ 58,172 of future minimum payments under the Company’s non-cancelable purchase obligations which was expected to be paid through 2026. Litigation —The Company continually evaluates uncertainties associated with litigation and records a charge equal to at least the minimum estimated liability for a loss contingency when both of the following conditions are met: (i) information available prior to issuance of the financial statements indicates that it is probable that a liability has been incurred at the date of the financial statements and (ii) the loss or range of loss can be reasonably estimated. If the Company determines that a loss is possible and a range of the loss can be reasonably estimated, the Company discloses the range of the possible loss in the notes to the condensed consolidated financial statements. The Company evaluates, on a quarterly basis, developments in its legal matters that could affect the amount of liability that has been previously accrued, if any, and the matters and related ranges of possible losses disclosed, and makes adjustments and changes to our disclosures as appropriate. Significant judgment is required to determine both likelihood of there being and the estimated amount of a loss related to such matters. Until the final resolution of such matters, there may be an exposure to loss, and such amounts could be material. For legal proceedings for which there is a reasonable possibility of loss (meaning those losses for which the likelihood is more than remote but less than probable), the Company has determined it does not have material exposure on an aggregate basis at this time. Indemnifications —In the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties and provides for general indemnification. The Company’s exposure under these agreements is unknown because it involves future claims that may be made against the Company but have not yet been made. To date, the Company has not paid any material claims or has been required to defend any actions related to its indemnification obligations; however, the Company may record charges in the future as a result of these indemnification obligations. In addition, the Company has indemnification agreements with certain of its directors, executive officers, and other employees that require it, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service with the Company. The terms of such obligations may vary.

401(k) Plan

401(k) Plan	3 Months Ended
	Mar. 31, 2021
Compensation And Retirement Disclosure [Abstract]
401(K) Plan	13. 401(k) PLAN The Company has a 401(k) savings plan (the “401(k) Plan”) that qualifies as a deferred salary arrangement under Section 401(k) of the Internal Revenue Code. Under the 401(k) Plan, participating employees may elect to contribute up to 100 % of their eligible compensation, subject to certain limitations. The 401(k) Plan provides for a discretionary employer-matching contribution. The Company made no matching contributions to the 401(k) Plan for the three months ended March 31, 2020 and 2021.

Related Party Transaction

Related Party Transaction	3 Months Ended
	Mar. 31, 2021
Related Party Transactions [Abstract]
Related Party Transaction	14. RELATED-PARTY TRANSACTION During the year ended December 31, 2017, the Company entered into a content sourcing agreement with a related party in the normal course of business. Content fees earned by the related party during the three months ended March 31, 2020 and 2021 were $ 1,350 and $ 1,679 , respectively. As of December 31, 2020 and March 31, 2021, outstanding educator partner payables related to this content sourcing agreement were $ 4,821 and $ 1,679 , respectively.

Segment and Geographic Informat

Segment and Geographic Information	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Segment and Geographic Information	15. SEGMENT AND GEOGRAPHIC INFORMATION The Company’s Chief Executive Officer is its CODM. For the purposes of allocating resources and assessing performance, the CODM examines three segments which are the Company’s three revenue sources: Consumer, Enterprise, and Degrees. This is also consistent with how the Company disaggregates revenue. Financial information for each reportable segment was as follows: Three Months Ended March 31, Revenue 2020 2021 Consumer $ 32,230 $ 51,908 Enterprise 15,026 24,493 Degrees 6,591 11,961 Total revenue $ 53,847 $ 88,362 Segment gross profit Consumer $ 17,564 $ 29,655 Enterprise 10,586 16,581 Degrees 6,591 11,961 Total segment gross profit $ 34,741 $ 58,197 Reconciliation of segment gross profit to gross profit Platform and support costs 4,228 6,312 Stock-based compensation 110 107 Amortization of internal use software 1,156 1,830 Amortization of intangibles 351 412 Total reconciling items 5,845 8,661 Gross profit $ 28,896 $ 49,536 Geographic Information: Revenue: The following table summarizes the revenue by region based on the billing address of the Company’s customers: Three Months Ended March 31, 2020 2021 United States $ 26,969 $ 45,446 Europe, Middle East, and Africa 15,617 24,580 Asia Pacific 7,188 10,889 Other 4,073 7,447 Total $ 53,847 $ 88,362 No single country other than the United States represented 10 % or more of the Company’s total revenue during the three months ended March 31, 2020 and 2021. Long-lived assets: The following table presents the Company’s long-lived assets, consisting of property, equipment and software, net of depreciation and amortization, and operating lease right-of-use assets, by geographic region: As of December 31, As of March 31, United States $ 39,202 $ 40,349 Rest of World 1,064 1,007 Total $ 40,266 $ 41,356

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	16. SUBSEQUENT EVENTS Initial Public Offering On April 5, 2021, the Company completed its initial public offering of common stock, in which it sold 14,664,776 shares. The shares were sold at a price to the public of $ 33.00 per share for net proceeds of $ 452,482 , after deducting underwriting discounts and commissions of $ 31,456 . Additionally, offering costs incurred by the Company were expected to total approximately $ 6,243 . Upon the closing of the Company’s IPO, all outstanding shares of its redeemable convertible preferred stock automatically converted into 75,305,400 shares of common stock on a one -for-one basis. On April 19, 2021, the underwriters exercised in full the right to purchase 2,359,500 additional shares of common stock from the Company, resulting in additional net proceeds of $ 72,802 after deducting underwriting discounts of $ 5,061 . In connection with the IPO, the Company amended and restated its Certificate of Incorporation to change the authorized capital stock to 300,000,000 shares of common stock, and 10,000,000 shares of preferred stock, all with a par value of $ 0.00001 per share. The condensed consolidated financial statements as of March 31, 2021, including share and per share amounts, do not give effect to the IPO and related conversion of the redeemable convertible preferred stock as the IPO and such conversion were completed subsequent to March 31, 2021.

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation —The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”), and following the requirements of the Securities and Exchange Commission (“SEC”), for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by GAAP can be condensed or omitted. These unaudited condensed consolidated financial statements have been prepared on the same basis as the Company's annual consolidated financial statements and, in the opinion of management, reflect all adjustments, consisting only of normal recurring adjustments, that are necessary for a fair statement of the Company's financial information. The results of operations for the three months ended March 31, 2021 are not necessarily indicative of the results to be expected for the year ending December 31, 2021 or for any other interim period or for any other future year. The balance sheet as of December 31, 2020 has been derived from audited consolidated financial statements at that date but does not include all information required by GAAP for annual consolidated financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements contained in the Company's final prospectus filed pursuant to Rule 424(b) under the Securities Act of 1933, as amended, with the SEC on March 31, 2021 (the “Prospectus”).
Principles of Consolidation	Principles of Consolidation —The unaudited condensed consolidated financial statements include the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.
Segment Information	Segment Information —The Company defines its segments as those operations the chief operating decision maker (“CODM”), determined to be the Chief Executive Officer of the Company, regularly reviews to allocate resources and assess performance. For the three months ended March 31, 2020 and 2021, the Company operated under three segments: Consumer, Enterprise, and Degrees. The Company continually monitors and reviews its segment reporting structure in accordance with Accounting Standards Codification (“ASC”) Topic 280, Segment Reporting, to determine whether any changes have occurred that would impact its reportable segments. For further information on the Company’s segment reporting, see Note 15 “Segment and Geographic Information.”
Use of Estimates	Use of Estimates —The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities and related disclosures at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. On an ongoing basis, the Company evaluates its estimates, including those related to fair value of common stock and stock-based awards; period of benefit for capitalized commissions; internal-use software development costs; useful lives of long-lived assets; the carrying value of operating lease right-of-use assets; valuation of intangible assets and income tax expense, including the valuation of deferred tax assets and liabilities, among others. The World Health Organization declared in March 2020 that the recent outbreak of the coronavirus disease (“COVID-19") constitutes a pandemic. The COVID-19 pandemic has caused general business disruption worldwide beginning in January 2020. The global impact of COVID-19 continues to rapidly evolve, and the Company will continue to monitor the situation and the effects on its business and operations closely. The Company does not yet know the full extent of potential impacts on its business or operations or on the global economy as a whole, particularly if the COVID-19 pandemic continues and persists for an extended period of time. Given the uncertainty, the Company cannot reasonably estimate the impact on its future results of operations, cash flows, or financial condition. As of the date of issuance of the condensed consolidated financial statements, the Company is not aware of any specific event or circumstance that would require it to update its estimates, judgments, or the carrying value of its assets or liabilities. These estimates may change as new events occur and additional information is obtained and are recognized in the consolidated financial statements as soon as they become known. Actual results could differ from those estimates, and any such differences may be material to the Company’s condensed consolidated financial statements.
Concentration of Credit Risk	Concentration of Credit Risk —Financial instruments that potentially subject the Company to concentration of credit risk consist of cash, cash equivalents, and marketable securities. The Company invests only in high-credit-quality instruments and maintains its cash equivalents and marketable securities in fixed-income securities. The Company places its cash primarily with domestic financial institutions that are federally insured within statutory limits. For purposes of assessing concentration of credit risk and significant customers, a group of customers under common control or customers that are affiliates of each other are regarded as a single customer. For the three months ended March 31, 2020 and 2021, the Company did not have any customers that accounted for more than 10 % of the Company’s revenue. As of December 31, 2020, the Company had one customer that accounted for 21 % of its net accounts receivable balance. As of March 31, 2021, the Company had no customers that accounted for more than 10 % of its net accounts receivable balance.
New Accounting Pronouncements Recently Adopted and Not Yet Adopted	New Accounting Pronouncements Recently Adopted The Company is an emerging growth company, as defined in the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). Under the JOBS Act, emerging growth companies can delay adopting new or revised accounting standards issued subsequent to the enactment of the JOBS Act until those standards apply to private companies. The Company has elected to use this extended transition period for complying with new or revised accounting standards that have different effective dates for public and private companies until the earlier of the date that it (i) is no longer an emerging growth company or (ii) affirmatively and irrevocably opts out of the extended transition period provided in the JOBS Act. As a result, the consolidated financial statements may not be comparable to companies that comply with the new or revised accounting pronouncements as of public company effective dates. The JOBS Act does not preclude an emerging growth company from early adopting new or revised accounting standards. The Company early adopted ASU 2014-09, Revenue from Contracts with Customers (Topic 606) , effective January 1, 2017 and ASU No. 2016-02, Leases (ASC 842) effective January 1, 2020. The Company expects to use the extended transition period for any other new or revised accounting standards during the period for which the Company remains an emerging growth company. New Accounting Pronouncements Not Yet Adopted In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes . This standard simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in Topic 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period, and the recognition of deferred tax liabilities for outside basis differences. The guidance also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates, and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill and the allocation of consolidated income taxes to separate financial statements of entities not subject to income tax. ASU 2019-12 will be effective for the Company in 2022. Upon adoption, the Company must apply certain aspects of this standard retrospectively for all periods presented while other aspects are applied on a modified retrospective basis through a cumulative-effect adjustment to accumulated deficit as of the beginning of the fiscal year of adoption. The Company is currently evaluating the impact of this update on its consolidated financial statements and related disclosures. In August 2018, the FASB issued ASU 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract . This update requires capitalization of the implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. Further, the standard also requires the Company to expense the capitalized implementation costs of a hosting arrangement over the term of the hosting arrangement. ASU 2018-15 will be effective for the Company for the annual period 2021 and early adoption for interim periods is permitted. The Company is currently evaluating the impact of this update on its consolidated financial statements and related disclosures. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses , which provides new authoritative guidance with respect to the measurement of credit losses on financial instruments. This update changes the impairment model for most financial assets and certain other instruments by introducing a current expected credit loss (“CECL”) model. The CECL model is a more forward-looking approach based on expected losses rather than incurred losses, requiring entities to estimate and record losses expected over the remaining contractual life of an asset. The guidance will be effective for the Company in 2023 and early adoption beginning in 2019 is permitted. The Company is currently evaluating the impact from the adoption of this guidance on the consolidated financial statements and related disclosures.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 2021
Revenue Recognition [Abstract]
Summary of Contract Assets and Liabilities	The Company’s contract assets and liabilities as of January 1, 2020, December 31, 2020 and March 31, 2021 were as follows: January 1, December 31, March 31, Contract assets: Accounts receivable $ 16,592 $ 39,976 $ 28,043 Unbilled revenue 64 745 7,539 Total contract assets $ 16,656 $ 40,721 $ 35,582 Contract liabilities: Deferred revenue $ 41,607 $ 80,642 $ 88,767 Total contract liabilities $ 41,607 $ 80,642 $ 88,767

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements at Fair Value by Level Within Fair Value Hierarchy	The Company’s assets and liabilities that were measured at fair value by level within the fair value hierarchy as of December 31, 2020 and March 31, 2021, were as follows: As of December 31, 2020 Fair Value Level 1 Level 2 Financial assets: Cash equivalents—money market funds $ 58,997 $ 58,997 $ — Marketable securities: Corporate debt securities 8,551 — 8,551 Commercial paper 26,469 — 26,469 U.S. government Treasury bills 170,382 170,382 — Total financial assets $ 264,399 $ 229,379 $ 35,020 As of March 31, 2021 Fair Value Level 1 Level 2 Financial assets: Cash equivalents—money market funds $ 133,597 $ 133,597 $ — Marketable securities: Corporate debt securities 5,500 — 5,500 Commercial paper 16,988 — 16,988 U.S. government Treasury bills 100,241 100,241 — Total financial assets $ 256,326 $ 233,838 $ 22,488

Marketable Securities (Tables)

Marketable Securities (Tables)	3 Months Ended
	Mar. 31, 2021
Investments Debt And Equity Securities [Abstract]
Summary of Available-for-Sale Marketable Securities	The following table presents the Company’s available-for-sale marketable securities as of December 31, 2020 and March 31, 2021: As of December 31, 2020 Amortized Gross Gross Estimated Corporate debt $ 8,547 $ 4 $ — $ 8,551 Commercial paper 26,469 — — 26,469 U.S. government Treasury bills 170,366 17 ( 1 ) 170,382 Total marketable securities $ 205,382 $ 21 $ ( 1 ) $ 205,402 As of March 31, 2021 Amortized Gross Gross Estimated Corporate debt $ 5,501 $ — $ ( 1 ) $ 5,500 Commercial paper 16,988 — — 16,988 U.S. government Treasury bills 100,217 24 — 100,241 Total marketable securities $ 122,706 $ 24 $ ( 1 ) $ 122,729
Schedule of the Cost Basis and Fair Value of Available-for-sale Securities by Contractual Maturity Date	The following table presents the cost basis and fair value of available-for-sale marketable securities by contractual maturity date as of December 31, 2020 and March 31, 2021: December 31, 2020 March 31, 2021 Amortized Estimated Amortized Estimated Due in one year or less $ 205,382 $ 205,402 $ 122,706 $ 122,729
Schedule of Investments in an Unrealized Loss Position	Investments in an unrealized loss position consisted of the following as of December 31, 2020 and March 31, 2021: December 31, 2020 March 31, 2021 Fair Gross Fair Gross Corporate debt $ — $ — $ 5,500 $ ( 1 ) U.S. government Treasury bills 20,201 ( 1 ) — — Total investments in an unrealized loss position $ 20,201 $ ( 1 ) $ 5,500 $ ( 1 )

Consolidated Balance Sheet Co_2

Consolidated Balance Sheet Components (Tables)	3 Months Ended
	Mar. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Schedule of Property, Equipment and Software	Property, equipment and software as of December 31, 2020 and March 31, 2021, consisted of the following: Estimated December 31, 2020 March 31, 2021 Internal-use software 2 years $ 21,582 $ 26,020 Computer equipment and software 2 years 2,928 3,264 Leasehold improvements Shorter of useful life and 7,057 7,071 Furniture and fixtures 5 years 2,973 3,051 Total property, equipment and software 34,540 39,406 Less accumulated depreciation and amortization ( 15,896 ) ( 18,326 ) Property, equipment and software—net $ 18,644 $ 21,080
Schedule of Intangible Assets	Intangible assets, net as of December 31, 2020 and March 31, 2021 consisted of the following: December 31, 2020 March 31, 2021 Estimated Gross Accumulated Net Gross Accumulated Net Assembled workforce 3 years $ 181 $ ( 83 ) $ 98 $ 181 $ ( 98 ) $ 83 Developed technology 6 years 8,446 ( 1,930 ) 6,516 8,446 ( 2,277 ) 6,169 Content assets 5 years 3,956 — 3,956 4,126 ( 65 ) 4,061 Intangible assets $ 12,583 $ ( 2,013 ) $ 10,570 $ 12,753 $ ( 2,440 ) $ 10,313
Schedule of Future Expected Amortization Expense for Intangible Assets	As of March 31, 2021, future expected amortization expense for intangible assets was as follows: Years Ending December 31 Remainder of 2021 $ 1,722 2022 2,270 2023 2,232 2024 2,237 2025 1,711 2026 141 Total $ 10,313

Redeemable Convertible Prefer_2

Redeemable Convertible Preferred Stock (Tables)	3 Months Ended
	Mar. 31, 2021
Temporary Equity Disclosure [Abstract]
Schedule of Redeemable Convertible Preferred Stock	As of December 31, 2020 and March 31, 2021, redeemable convertible preferred stock consisted of the following: December 31, 2020 and March 31, 2021 Shares Issue Date Authorized Outstanding Issue Price Carrying Liquidation A December 2011 and June 2012 23,023,168 23,023,168 $ 0.9628 $ 22,127 $ 22,167 B June 2013, July 2013, and October 2013 12,849,539 12,849,539 4.9029 62,901 63,000 C August 2015 and September 2015 12,091,062 12,091,062 5.0935 61,351 61,586 D April 2017, June 2017, September 2017, and October 2017 10,900,409 10,900,409 7.50 81,482 81,753 E April 2019 and July 2019 9,166,666 8,794,164 12.00 104,820 105,530 F July 2020 8,389,961 7,647,058 17.00 129,612 130,000 76,420,805 75,305,400 $ 462,293 $ 464,036

Stockholders' Deficit (Tables)

Stockholders' Deficit (Tables)	3 Months Ended
	Mar. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Schedule of Stock Option Activity under the Plans	Stock option activity under the Plans for the three months ended March 31, 2021 was as follows: Number of Weighted- Weighted- Aggregate Balance—December 31, 2020 32,458,408 $ 4.60 7.75 $ 625,058 Granted — — Exercised ( 2,891,926 ) 2.96 Canceled ( 257,757 ) 5.91 Balance—March 31, 2021 29,308,725 $ 4.75 7.55 $ 1,179,580 Options vested 13,962,319 $ 2.97 6.46 $ 586,846
Schedule of Share-based Compensation, Restricted Stock Units Award Activity	RSU activity during the three months ended March 31, 2021 was as follows: Three Months Ended March 31, 2021 Number of Weighted- Aggregate Unvested balance—December 31, 2020 3,276,600 $ 17.92 $ 19,454 Granted 2,904,871 34.82 Forfeited ( 30,200 ) 27.02 Unvested balance—March 31, 2021 6,151,271 $ 25.86 $ 276,807
Summary of Stock-Based Compensation Expense in the Consolidated Statements of Operations	Stock-based compensation expense for the three months ended March 31, 2020 and 2021 is classified in the condensed consolidated statements of operations as follows: Three Months Ended March 31, 2020 2021 Cost of revenue $ 110 $ 107 Research and development 1,277 2,028 Sales and marketing 709 1,347 General and administrative 918 1,802 Total $ 3,014 $ 5,284
Summary of Shares of Common Stock Reserved for Future Issuance	The Company’s common stock reserved for future issuance as of December 31, 2020 and March 31, 2021 was as follows: December 31, 2020 March 31, 2021 Conversion of convertible preferred stock 75,305,400 75,305,400 Stock options outstanding 32,458,408 29,308,725 RSUs outstanding 3,276,600 6,151,271 Shares available for future grants 8,098,484 18,213,838 Total shares of common stock reserved 119,138,892 128,979,234

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Net Loss Per Share	The following table presents the calculation of basic and diluted net loss per share attributable to common stockholders for the three months ended March 31, 2020 and 2021: Three Months Ended March 31, 2020 2021 Numerator: Net loss attributable to common stockholders $ ( 14,314 ) $ ( 18,663 ) Denominator: Weighted-average shares used in computing net loss per share 35,666,172 41,218,355 Net loss per share attributable to common stockholders—basic and $ ( 0.40 ) $ ( 0.45 )
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following potentially dilutive securities were excluded from the computation of diluted net loss per share calculations for the three months ended March 31, 2020 and 2021 because the impact of including them would have been anti-dilutive: Three Months Ended March 31, 2020 2021 Redeemable convertible preferred stock 67,658,342 75,305,400 Common stock options 30,127,268 29,308,725 Restricted stock units — 6,151,271 Common stock warrants 571,250 — Shares subject to repurchase 71,251 39,584 Total 98,428,111 110,804,980

Segment and Geographic Inform_2

Segment and Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Schedule of Financial Information for Each Reportable Segment	Financial information for each reportable segment was as follows: Three Months Ended March 31, Revenue 2020 2021 Consumer $ 32,230 $ 51,908 Enterprise 15,026 24,493 Degrees 6,591 11,961 Total revenue $ 53,847 $ 88,362 Segment gross profit Consumer $ 17,564 $ 29,655 Enterprise 10,586 16,581 Degrees 6,591 11,961 Total segment gross profit $ 34,741 $ 58,197 Reconciliation of segment gross profit to gross profit Platform and support costs 4,228 6,312 Stock-based compensation 110 107 Amortization of internal use software 1,156 1,830 Amortization of intangibles 351 412 Total reconciling items 5,845 8,661 Gross profit $ 28,896 $ 49,536
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area	The following table summarizes the revenue by region based on the billing address of the Company’s customers: Three Months Ended March 31, 2020 2021 United States $ 26,969 $ 45,446 Europe, Middle East, and Africa 15,617 24,580 Asia Pacific 7,188 10,889 Other 4,073 7,447 Total $ 53,847 $ 88,362
Schedule of Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country	The following table presents the Company’s long-lived assets, consisting of property, equipment and software, net of depreciation and amortization, and operating lease right-of-use assets, by geographic region: As of December 31, As of March 31, United States $ 39,202 $ 40,349 Rest of World 1,064 1,007 Total $ 40,266 $ 41,356

Organization and Description _2

Organization and Description of Business (Details)	Apr. 19, 2021USD ($)shares	Apr. 05, 2021USD ($)$ / sharesshares	Mar. 31, 2021shares	Dec. 31, 2020shares
Subsidiary Sale Of Stock [Line Items]
Redeemable convertible preferred stock, shares issued upon conversion			75,305,400	75,305,400
Conversion ratio		1
Subsequent Event
Subsidiary Sale Of Stock [Line Items]
Number of shares sold (in shares)		14,664,776
Net proceeds from common stock sold | $	$ 72,802,000
IPO | Subsequent Event
Subsidiary Sale Of Stock [Line Items]
Number of shares sold (in shares)		14,664,776
Stock price (in dollars per share) | $ / shares		$ 33
Proceeds from sale of stock, net | $		$ 452,482,000
Net proceeds from common stock sold | $		452,482,000
Issuance of additional common stock under IPO to underwriter	2,359,500
Underwriting discounts and commissions | $	$ 5,061,000	31,456,000
Payments of costs related to initial public offering | $		$ 6,243,000
Redeemable convertible preferred stock, shares issued upon conversion		75,305,400
IPO | Subsequent Event | Common Stock
Subsidiary Sale Of Stock [Line Items]
Redeemable convertible preferred stock, shares issued upon conversion		75,305,400
Conversion ratio		1

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2021CustomerSegment	Mar. 31, 2020	Dec. 31, 2020Customer
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Number of operating segments | Segment	3
Accounts Receivable
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Number of customers | Customer	0		1
Customer Concentration Risk [Member] | Sales Revenue
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Concentrations of credit risk, percentage	10.00%	10.00%
Customer Concentration Risk [Member] | Accounts Receivable
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Concentrations of credit risk, percentage	10.00%		21.00%

Revenue Recognition - Summary o

Revenue Recognition - Summary of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Jan. 01, 2020
Contract assets:
Accounts receivable	$ 28,043	$ 39,976	$ 16,592
Unbilled revenue	7,539	745	64
Total contract assets	35,582	40,721	16,656
Contract liabilities:
Deferred revenue	88,767	80,642	41,607
Total contract liabilities	$ 88,767	$ 80,642	$ 41,607

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue Recognition [Abstract]
Revenue Recognized	$ 37,522,000	$ 19,595,000
Impairment losses on contract assets	0	0
Commissions and related payroll tax expenditures	2,289,000	1,333,000
Amortization, sales and marketing expenses	1,666,000	769,000
Deferred costs	3,152,000	3,026,000
Other assets	$ 6,600,000	$ 6,581,000

Revenue Recognition - Additio_2

Revenue Recognition - Additional Information (Details 1) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-04-01 $ in Thousands	Mar. 31, 2021USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligation	$ 193,918
Percent of remaining performance obligations to be recognized	63.00%
Period for satisfaction of remaining performance obligation	12 months

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value Measurements at Fair Value by Level Within Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total financial assets	$ 256,326	$ 264,399
Money Market Funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	133,597	58,997
Corporate Debt Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	5,500	8,551
Commercial Paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	16,988	26,469
U.S. Government Treasury Bills
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	100,241	170,382
Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total financial assets	233,838	229,379
Level 1 | Money Market Funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	133,597	58,997
Level 1 | U.S. Government Treasury Bills
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	100,241	170,382
Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total financial assets	22,488	$ 35,020
Level 2 | Corporate Debt Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	5,500
Level 2 | Commercial Paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	$ 16,988

Marketable Securities - Summary

Marketable Securities - Summary of Available-for-Sale Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 122,706	$ 205,382
Gross Unrealized Gains	24	21
Gross Unrealized Losses	(1)	(1)
Estimated Fair Market Value	122,729	205,402
Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	5,501	8,547
Gross Unrealized Gains		4
Gross Unrealized Losses	(1)
Estimated Fair Market Value	5,500	8,551
Commercial Paper
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	16,988	26,469
Estimated Fair Market Value	16,988	26,469
U.S. Government Treasury Bills
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	100,217	170,366
Gross Unrealized Gains	24	17
Gross Unrealized Losses		(1)
Estimated Fair Market Value	$ 100,241	$ 170,382

Marketable Securities - Schedul

Marketable Securities - Schedule of the Cost Basis and Fair Value of Available-for-sale Securities by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Investments Debt And Equity Securities [Abstract]
Amortized Cost	$ 122,706	$ 205,382
Estimated Fair Market Value	$ 122,729	$ 205,402

Marketable Securities - Sched_2

Marketable Securities - Schedule of Investments in an Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule Of Available For Sale Securities [Line Items]
Fair Value	$ 5,500	$ 20,201
Gross Unrealized Losses	(1)	(1)
Corporate Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Fair Value	5,500
Gross Unrealized Losses	$ (1)
U.S. Government Treasury Bills
Schedule Of Available For Sale Securities [Line Items]
Fair Value		20,201
Gross Unrealized Losses		$ (1)

Marketable Securities - Additio

Marketable Securities - Additional Information (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Investments Debt And Equity Securities [Abstract]
Investments in a continuous unrealized loss position for more than 12 months	$ 0	$ 0

Consolidated Balance Sheet Co_3

Consolidated Balance Sheet Components - Schedule of Property, Equipment and Software (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Total property, equipment, and software	$ 39,406	$ 34,540
Less accumulated depreciation and amortization	(18,326)	(15,896)
Property, equipment, and software—net	$ 21,080	18,644
Internal-use Software
Property Plant And Equipment [Line Items]
Property, equipment, and software, Useful Life	2 years
Total property, equipment, and software	$ 26,020	21,582
Computer Equipment and Software
Property Plant And Equipment [Line Items]
Property, equipment, and software, Useful Life	2 years
Total property, equipment, and software	$ 3,264	2,928
Leasehold Improvements
Property Plant And Equipment [Line Items]
Total property, equipment, and software	$ 7,071	7,057
Property, equipment, and software, Useful Life	Shorter of useful life andremaining lease term
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property, equipment, and software, Useful Life	5 years
Total property, equipment, and software	$ 3,051	$ 2,973

Consolidated Balance Sheet Co_4

Consolidated Balance Sheet Components - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Depreciation and amortization	$ 2,931	$ 1,993
Amortization expenses of intangible assets	427	366
Intangible assets	$ 10,313		$ 10,570
Assembled Workforce
Property Plant And Equipment [Line Items]
Remaining amortization period for intangible asset	1 year 4 months 24 days
Developed Technology
Property Plant And Equipment [Line Items]
Remaining amortization period for intangible asset	4 years 4 months 24 days
Content Asset
Property Plant And Equipment [Line Items]
Intangible assets	$ 170
Remaining amortization period for intangible asset	4 years 10 months 24 days
Property, Equipment and Software
Property Plant And Equipment [Line Items]
Depreciation and amortization	$ 2,504	1,627
Internal-use Software
Property Plant And Equipment [Line Items]
Amortization expenses of intangible assets	$ 1,830	$ 1,156

Consolidated Balance Sheet Co_5

Consolidated Balance Sheet Components - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Gross carrying value	$ 12,753	$ 12,583
Accumulated amortization	(2,440)	(2,013)
Net carrying value	$ 10,313	10,570
Assembled Workforce
Finite Lived Intangible Assets [Line Items]
Estimated useful lives	3 years
Gross carrying value	$ 181	181
Accumulated amortization	(98)	(83)
Net carrying value	$ 83	98
Developed Technology
Finite Lived Intangible Assets [Line Items]
Estimated useful lives	6 years
Gross carrying value	$ 8,446	8,446
Accumulated amortization	(2,277)	(1,930)
Net carrying value	$ 6,169	6,516
Content Asset
Finite Lived Intangible Assets [Line Items]
Estimated useful lives	5 years
Gross carrying value	$ 4,126	3,956
Accumulated amortization	(65)	0
Net carrying value	$ 4,061	$ 3,956

Consolidated Balance Sheet Co_6

Consolidated Balance Sheet Components - Schedule of Future Expected Amortization Expense for Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Remainder of 2021	$ 1,722
2022	2,270
2023	2,232
2024	2,237
2025	1,711
2026	141
Net carrying value	$ 10,313	$ 10,570

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Effective tax rate	(2.05%)	(0.63%)

Redeemable Convertible Prefer_3

Redeemable Convertible Preferred Stock - Schedule of Redeemable Convertible Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Temporary Equity [Line Items]
Authorized	76,420,805	76,420,805
Outstanding	75,305,400	75,305,400
Issue Price	$ 0.00001	$ 0.00001
Carrying Value	$ 462,293	$ 462,293
Liquidation Amount	$ 464,036	$ 464,036
Redeemable Convertible Preferred Stock Class A
Temporary Equity [Line Items]
Issue Date	December 2011 and June 2012	December 2011 and June 2012
Authorized	23,023,168	23,023,168
Outstanding	23,023,168	23,023,168
Issue Price	$ 0.9628	$ 0.9628
Carrying Value	$ 22,127	$ 22,127
Liquidation Amount	$ 22,167	$ 22,167
Redeemable Convertible Preferred Stock Class B
Temporary Equity [Line Items]
Issue Date	June 2013, July 2013, and October 2013	June 2013, July 2013, and October 2013
Authorized	12,849,539	12,849,539
Outstanding	12,849,539	12,849,539
Issue Price	$ 4.9029	$ 4.9029
Carrying Value	$ 62,901	$ 62,901
Liquidation Amount	$ 63,000	$ 63,000
Redeemable Convertible Preferred Stock Class C
Temporary Equity [Line Items]
Issue Date	August 2015 and September 2015	August 2015 and September 2015
Authorized	12,091,062	12,091,062
Outstanding	12,091,062	12,091,062
Issue Price	$ 5.0935	$ 5.0935
Carrying Value	$ 61,351	$ 61,351
Liquidation Amount	$ 61,586	$ 61,586
Redeemable Convertible Preferred Stock Class D
Temporary Equity [Line Items]
Issue Date	April 2017, June 2017, September 2017, and October 2017	April 2017, June 2017, September 2017, and October 2017
Authorized	10,900,409	10,900,409
Outstanding	10,900,409	10,900,409
Issue Price	$ 7.50	$ 7.50
Carrying Value	$ 81,482	$ 81,482
Liquidation Amount	$ 81,753	$ 81,753
Redeemable Convertible Preferred Stock Class E
Temporary Equity [Line Items]
Issue Date	April 2019 and July 2019	April 2019 and July 2019
Authorized	9,166,666	9,166,666
Outstanding	8,794,164	8,794,164
Issue Price	$ 12	$ 12
Carrying Value	$ 104,820	$ 104,820
Liquidation Amount	$ 105,530	$ 105,530
Redeemable Convertible Preferred Stock Class F
Temporary Equity [Line Items]
Issue Date	July 2020	July 2020
Authorized	8,389,961	8,389,961
Outstanding	7,647,058	7,647,058
Issue Price	$ 17	$ 17
Carrying Value	$ 129,612	$ 129,612
Liquidation Amount	$ 130,000	$ 130,000

Redeemable Convertible Prefer_4

Redeemable Convertible Preferred Stock - Additional Information (Details) - shares	Apr. 05, 2021	Mar. 31, 2021	Dec. 31, 2020
Temporary Equity [Line Items]
Redeemable convertible preferred stock, shares issued upon conversion		75,305,400	75,305,400
IPO | Subsequent Event
Temporary Equity [Line Items]
Redeemable convertible preferred stock, shares issued upon conversion	75,305,400
IPO | Common Stock | Subsequent Event
Temporary Equity [Line Items]
Redeemable convertible preferred stock, shares issued upon conversion	75,305,400
Redeemable convertible preferred stock, conversion rate	one-to one

Stockholders' Deficit - Additio

Stockholders' Deficit - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for grant	18,213,838		8,098,484
Shares reserved for issuance	128,979,234		119,138,892
Allocated Share Based Compensation Expense	$ 5,284	$ 3,014
Compensation cost related to the nonvested awards not yet recognized	$ 58,732
Weighted average period for recognition of compensation cost	2 years 6 months 18 days
Internal-use Software
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Allocated Share Based Compensation Expense	$ 526	$ 156
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation, expiration period	10 years
Vesting period	4 years
Aggregate intrinsic value of employee options exercised	$ 102,025
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	4 years
Cliff vesting period			1 year
Compensation cost related to the nonvested awards not yet recognized	$ 159,877
Weighted average period for recognition of compensation cost	2 years 5 months 23 days
2013 and 2014 Executive Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for grant	0		8,098,484
Shares reserved for issuance	0	0
2013 and 2014 Executive Stock Incentive Plan | Employees, Directors, and Service Providers
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for grant			65,547,319
2021 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for issuance	15,400,000
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares reserved for issuance	2,800,000

Stockholders' Deficit - Schedul

Stockholders' Deficit - Schedule of Stock Option Activity under the Plans (Details) - Stock Options - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Beginning balance	32,458,408
Number of Shares, Options exercised	(2,891,926)
Number of Shares, Options canceled	(257,757)
Number of Shares, Ending balance	29,308,725	32,458,408
Number of Shares, Options vested	13,962,319
Weighted Average Exercise Price, Beginning balance	$ 4.60
Weighted Average Exercise Price, Options exercised	2.96
Weighted Average Exercise Price, Canceled	5.91
Weighted Average Exercise Price, Ending balance	4.75	$ 4.60
Weighted Average Exercise Price, Options vested	$ 2.97
Weighted Average Remaining Contractual Term	7 years 6 months 18 days	7 years 9 months
Weighted Average Remaining Contractual Term, Options vested	6 years 5 months 15 days
Aggregate Intrinsic Value, Beginning balance	$ 625,058
Aggregate Intrinsic Value, Ending balance	1,179,580	$ 625,058
Aggregate Intrinsic Value, Options vested	$ 586,846

Stockholders' Deficit - Sched_2

Stockholders' Deficit - Schedule of Share-based Compensation, Restricted Stock Units Award Activity (Details) - Restricted Stock Units $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Unvested beginning balance | shares	3,276,600
Number of Shares, Granted | shares	2,904,871
Number of Shares, Forfeited | shares	30,200
Number of Shares, Unvested ending balance | shares	6,151,271
Weighted- Average Grant Fair Value, Unvested beginning balance | $ / shares	$ 17.92
Weighted- Average Grant Fair Value, Granted | $ / shares	34.82
Weighted- Average Grant Fair Value, Forfeited | $ / shares	27.02
Weighted- Average Grant Fair Value, Unvested ending balance | $ / shares	$ 25.86
Aggregate Intrinsic Value, Unvested beginning balance | $	$ 19,454
Aggregate Intrinsic Value, Unvested ending balance | $	$ 276,807

Stockholders' Deficit - Summary

Stockholders' Deficit - Summary of Stock-Based Compensation Expense in the Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cost of revenue	$ 5,284	$ 3,014
Cost of Revenue
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cost of revenue	107	110
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cost of revenue	2,028	1,277
Sales and Marketing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cost of revenue	1,347	709
General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cost of revenue	$ 1,802	$ 918

Stockholders' Deficit - Summa_2

Stockholders' Deficit - Summary of Shares of Common Stock Reserved for Future Issuance (Details) - shares	Mar. 31, 2021	Dec. 31, 2020
Equity [Abstract]
Conversion of convertible preferred stock	75,305,400	75,305,400
Stock options outstanding	29,308,725	32,458,408
RSUs outstanding	6,151,271	3,276,600
Shares available for future grants	18,213,838	8,098,484
Total shares of common stock reserved	128,979,234	119,138,892

Net Loss Per Share - Calculatio

Net Loss Per Share - Calculation of Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net loss attributable to common stockholders	$ (18,663)	$ (14,314)
Denominator:
Weighted average shares used in computing net loss per share attributable to common stockholders—basic and diluted (in shares)	41,218,355	35,666,172
Net loss per share attributable to common stockholders—basic and diluted (in dollars per share)	$ (0.45)	$ (0.40)

Net Loss Per Share - Schedule o

Net Loss Per Share - Schedule of Securities with a Potentially Dilutive Impact (Details) - shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of dilutive earnings per share (in shares)	110,804,980	98,428,111
Redeemable Convertible Preferred Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of dilutive earnings per share (in shares)	75,305,400	67,658,342
Common Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of dilutive earnings per share (in shares)	29,308,725	30,127,268
Restricted Stock Units
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of dilutive earnings per share (in shares)	6,151,271	0
Common Stock Warrants
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of dilutive earnings per share (in shares)	0	571,250
Shares Subject to Repurchase
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of dilutive earnings per share (in shares)	39,584	71,251

Commitments and Contingencies (

Commitments and Contingencies (Additional Information) (Details) $ in Thousands	Mar. 31, 2021USD ($)
Commitments And Contingencies Disclosure [Abstract]
Non-cancelable purchase obligations	$ 58,172

401(k) Plan (Details)

401(k) Plan (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Compensation And Retirement Disclosure [Abstract]
Employees percentage of eligible compensation may elect to contribute	100.00%
Employer discretionary contribution amount	$ 0	$ 0

Related Party Transaction - Add

Related Party Transaction - Additional Information (Details) - Content Sourcing Agreement - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Related party content fees	$ 1,679	$ 1,350
Outstanding to educator partner payables	$ 1,679		$ 4,821

Segment and Geographic Inform_3

Segment and Geographic Information - Segment Results of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue
Revenue	$ 88,362	$ 53,847
Segment gross profit
Total segment gross profit	58,197	34,741
Platform and support costs	6,312	4,228
Stock-based compensation	107	110
Segment amortization	427	366
Total reconciling items	8,661	5,845
Gross profit	49,536	28,896
Internal Use Software [Member]
Segment gross profit
Segment amortization	1,830	1,156
Acquired Intangibles [Member]
Segment gross profit
Segment amortization	412	351
Consumer Segment [Member]
Revenue
Revenue	51,908	32,230
Segment gross profit
Total segment gross profit	29,655	17,564
Enterprise Segment [Member]
Revenue
Revenue	24,493	15,026
Segment gross profit
Total segment gross profit	16,581	10,586
Degrees Segment [Member]
Revenue
Revenue	11,961	6,591
Segment gross profit
Total segment gross profit	$ 11,961	$ 6,591

Segment and Geographic Inform_4

Segment and Geographic Information - Summary of Revenue By Region Based On Billing Address (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Revenue	$ 88,362	$ 53,847
United States [Member]
Segment Reporting Information [Line Items]
Revenue	45,446	26,969
Europe, Middle East, and Africa [Member]
Segment Reporting Information [Line Items]
Revenue	24,580	15,617
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	10,889	7,188
Other [Member]
Segment Reporting Information [Line Items]
Revenue	$ 7,447	$ 4,073

Segment and Geographic Inform_5

Segment and Geographic Information - Additional Information (Details) - Revenue [Member]	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Concentration Risk, Benchmark Description	No single country other than the United States represented 10% or more of the Company’s total revenue
United States [Member] | Minimum
Segment Reporting Information [Line Items]
Concentration risk, percentage	10.00%	10.00%

Segment and Geographic Inform_6

Segment and Geographic Information - Summary of Long Lived Assets By Geographic Region (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Noncurrent Assets	$ 41,356	$ 40,266
United States [Member]
Segment Reporting Information [Line Items]
Noncurrent Assets	40,349	39,202
Rest of World [Member]
Segment Reporting Information [Line Items]
Noncurrent Assets	$ 1,007	$ 1,064

Subsequent Events (Details)

Subsequent Events (Details) $ / shares in Units, $ in Thousands	Apr. 19, 2021USD ($)shares	Apr. 05, 2021USD ($)$ / sharesshares	Mar. 31, 2021$ / sharesshares	Dec. 31, 2020$ / sharesshares
Subsequent Event [Line Items]
Additional offering cost | $		$ 6,243
Redeemable convertible preferred stock, shares issued upon conversion			75,305,400	75,305,400
Conversion Of Stock Conversion Ratio		1
Common stock, shares authorized (in shares)			162,000,000	162,000,000
Common stock, par value (in dollars per share) | $ / shares			$ 0.00001	$ 0.00001
Subsequent Event
Subsequent Event [Line Items]
Number of shares sold (in shares)		14,664,776
Net proceeds from common stock sold | $	$ 72,802
Subsequent Event | IPO
Subsequent Event [Line Items]
Number of shares sold (in shares)		14,664,776
Stock price (in dollars per share) | $ / shares		$ 33
Net proceeds from common stock sold | $		$ 452,482
Underwriting discounts and commissions | $	$ 5,061	$ 31,456
Redeemable convertible preferred stock, shares issued upon conversion		75,305,400
Issuance of additional common stock under IPO to underwriter	2,359,500
Common stock, shares authorized (in shares)		300,000,000
Preferred stock, shares authorized (in shares)		10,000,000
Common stock, par value (in dollars per share) | $ / shares		$ 0.00001
Preferred stock, par value (in dollars per share) | $ / shares		$ 0.00001