Cloudflare (NET) 10-Q2 May 242024 Q1 Quarterly reportFinancial data

Company Profile

Cover

Cover - shares	3 Months Ended
Cover - shares	Mar. 31, 2024	Apr. 18, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-39039
Entity Registrant Name	Cloudflare, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-0805829
Entity Address, Address Line One	101 Townsend Street
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94107
City Area Code	888
Local Phone Number	993-5273
Title of 12(b) Security	Class A Common Stock, $0.001 par value
Trading Symbol	NET
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Amendment Flag	false
Entity Central Index Key	0001477333
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2024
Current Fiscal Year End Date	--12-31
Class A common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		301,090,249
Class B common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		38,702,946

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 254,401	$ 86,864
Available-for-sale securities	1,461,801	1,586,880
Accounts receivable, net	213,183	248,268
Contract assets	11,589	11,041
Restricted cash short-term	5,535	2,522
Prepaid expenses and other current assets	69,663	47,502
Total current assets	2,016,172	1,983,077
Property and equipment, net	329,422	322,813
Goodwill	148,047	148,047
Acquired intangible assets, net	14,298	19,564
Operating lease right-of-use assets	141,820	138,556
Deferred contract acquisition costs, noncurrent	137,527	133,236
Restricted cash	1,838	1,838
Other noncurrent assets	12,506	12,636
Total assets	2,801,630	2,759,767
Current liabilities:
Accounts payable	47,832	53,727
Accrued expenses and other current liabilities	68,412	63,597
Accrued compensation	62,299	63,801
Operating lease liabilities	39,273	38,351
Deferred revenue	356,243	347,608
Total current liabilities	574,059	567,084
Convertible senior notes, net	1,284,352	1,283,362
Operating lease liabilities, noncurrent	113,017	113,490
Deferred revenue, noncurrent	17,645	17,244
Other noncurrent liabilities	15,333	15,540
Total liabilities	2,004,406	1,996,720
Commitments and contingencies (Note 8)
Stockholders’ Equity
Additional paid-in capital	1,857,168	1,784,566
Accumulated deficit	(1,059,383)	(1,023,840)
Accumulated other comprehensive income (loss)	(900)	1,984
Total stockholders’ equity	797,224	763,047
Total liabilities and stockholders’ equity	2,801,630	2,759,767
Class A common stock
Stockholders’ Equity
Common stock, value, issued	300	297
Class B common stock
Stockholders’ Equity
Common stock, value, issued	$ 39	$ 40

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2024	Dec. 31, 2023
Class A common stock
Stockholders’ Equity
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	2,250,000,000	2,250,000,000
Common stock, shares issued (in shares)	301,023,000	298,089,000
Common stock, shares outstanding (in shares)	301,023,000	298,089,000
Class B common stock
Stockholders’ Equity
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	315,000,000	315,000,000
Common stock, shares issued (in shares)	38,710,000	39,443,000
Common stock, shares outstanding (in shares)	38,710,000	39,443,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue	$ 378,602	$ 290,175
Cost of revenue	85,038	70,432
Gross profit	293,564	219,743
Operating expenses:
Sales and marketing	194,102	137,001
Research and development	87,703	81,539
General and administrative	66,309	48,475
Total operating expenses	348,114	267,015
Loss from operations	(54,550)	(47,272)
Non-operating income (expense):
Interest income	21,252	13,487
Interest expense	(1,100)	(2,126)
Other income (expense), net	1,124	(857)
Total non-operating income, net	21,276	10,504
Loss before income taxes	(33,274)	(36,768)
Provision for income taxes	2,269	1,314
Net loss	$ (35,543)	$ (38,082)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.10)	$ (0.12)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.10)	$ (0.12)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	338,583	330,389
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	338,583	330,389

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (35,543)	$ (38,082)
Other comprehensive income (loss):
Change in unrealized gain (loss) on investments, net of tax	(2,884)	5,758
Other comprehensive income (loss)	(2,884)	5,758
Comprehensive loss	$ (38,427)	$ (32,324)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Additional paid-in capital	Accumulated deficit	Accumulated other comprehensive income (loss)	Class A common stock	Class A common stock Common stock	Class B common stock	Class B common stock Common stock
Beginning balance (in shares) at Dec. 31, 2022						286,561		43,525
Beginning balance at Dec. 31, 2022	$ 623,964	$ 1,475,423	$ (839,891)	$ (11,896)		$ 286		$ 42
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)						93		713
Issuance of common stock upon exercise of stock options	3,305	3,304						$ 1
Vesting of shares issued upon early exercise of stock options	590	590
Issuance of common stock related to settlement of restricted stock units (RSUs) (in shares)						715		189
Issuance of common stock related to settlement of restricted stock units (RSUs)	0	(1)				$ 1
Tax withholding on RSU settlement (in shares)						(21)		(8)
Tax withholding on RSU settlement	(2,058)	(2,058)
Conversion of Class B to Class A common stock (in shares)						2,024		(2,024)
Conversion of Class B to Class A common stock	0					$ 2		$ (2)
Stock-based compensation	59,109	59,109
Net loss	(38,082)		(38,082)			$ (33,207)		$ (4,875)
Other comprehensive (loss) income	5,758			5,758
Ending balance (in shares) at Mar. 31, 2023						289,372		42,395
Ending balance at Mar. 31, 2023	652,586	1,536,367	(877,973)	(6,138)		$ 289		$ 41
Beginning balance (in shares) at Dec. 31, 2023					298,089	298,089	39,443	39,443
Beginning balance at Dec. 31, 2023	763,047	1,784,566	(1,023,840)	1,984		$ 297		$ 40
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)						114		1,016
Issuance of common stock upon exercise of stock options	4,422	4,421						$ 1
Vesting of shares issued upon early exercise of stock options	31	31
Issuance of common stock related to settlement of restricted stock units (RSUs) (in shares)						1,114
Issuance of common stock related to settlement of restricted stock units (RSUs)	0	(1)
Tax withholding on RSU settlement (in shares)						(43)
Tax withholding on RSU settlement	(4,401)	(4,401)
Conversion of Class B to Class A common stock (in shares)						1,749		(1,749)
Conversion of Class B to Class A common stock	0					$ 2		$ (2)
Stock-based compensation	72,552	72,552
Net loss	(35,543)		(35,543)			$ (31,429)		$ (4,114)
Other comprehensive (loss) income	(2,884)			(2,884)
Ending balance (in shares) at Mar. 31, 2024					301,023	301,023	38,710	38,710
Ending balance at Mar. 31, 2024	$ 797,224	$ 1,857,168	$ (1,059,383)	$ (900)		$ 300		$ 39

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash Flows from Operating Activities
Net loss	$ (35,543)	$ (38,082)
Adjustments to reconcile net loss to cash provided by operating activities:
Depreciation and amortization expense	30,112	31,509
Non-cash operating lease costs	11,863	11,061
Amortization of deferred contract acquisition costs	18,107	14,109
Stock-based compensation expense	69,723	57,401
Amortization of debt issuance costs	990	1,163
Net accretion of discounts and amortization of premiums on available-for-sale securities	(12,713)	(8,228)
Deferred income taxes	(276)	(120)
Provision for bad debt	3,223	1,576
Other	106	(14)
Changes in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable, net	31,862	(32,781)
Contract assets	(548)	269
Deferred contract acquisition costs	(22,398)	(19,391)
Prepaid expenses and other current assets	(23,022)	(8,934)
Other noncurrent assets	760	(811)
Accounts payable	3,073	11,634
Accrued expenses and other current liabilities	3,838	650
Operating lease liabilities	(14,678)	(6,908)
Deferred revenue	9,036	21,881
Other noncurrent liabilities	64	430
Net cash provided by operating activities	73,579	36,414
Cash Flows from Investing Activities
Purchases of property and equipment	(32,056)	(17,541)
Capitalized internal-use software	(5,916)	(4,970)
Purchases of available-for-sale securities	(298,995)	(476,206)
Sales of available-for-sale securities	0	20,248
Maturities of available-for-sale securities	433,903	493,988
Other investing activities	14	48
Net cash provided by investing activities	96,950	15,567
Cash Flows from Financing Activities
Proceeds from the exercise of stock options	4,422	3,305
Payment of tax withholding obligation on RSU settlement	(4,401)	(2,058)
Net cash provided by financing activities	21	1,247
Net increase in cash, cash equivalents, and restricted cash	170,550	53,228
Cash, cash equivalents, and restricted cash, beginning of period	91,224	215,204
Cash, cash equivalents, and restricted cash, end of period	261,774	268,432
Supplemental Disclosure of Cash Flow Information:
Cash paid for interest	8	1
Cash paid for income taxes, net of refunds	897	1,260
Cash paid for operating lease liabilities	12,530	7,265
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Stock-based compensation capitalized for software development	2,439	1,640
Accounts payable and accrued expenses related to property and equipment additions	16,961	13,276
Vesting of early exercised stock options	31	590
Operating lease right-of-use assets obtained in exchange for operating lease liabilities	$ 13,282	$ 8,071

Organization and Basis of Prese

Organization and Basis of Presentation	3 Months Ended
Organization and Basis of Presentation	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation Organization and Description of Business Cloudflare, Inc. (the Company, Cloudflare, we, us, or our) is a global cloud services provider that delivers a broad range of services to businesses of all sizes and in all geographies, making them more secure, enhancing the performance of their business-critical applications, and eliminating the cost and complexity of managing individual network hardware. Cloudflare’s network serves as a scalable, easy-to-use, unified control plane to deliver security, performance, and reliability across on-premises, hybrid, cloud, and software-as-a-service (SaaS) applications. The Company was incorporated in Delaware in July 2009. The Company is headquartered in San Francisco, California. Basis of Presentation and Principles of Consolidation The accompanying interim condensed consolidated financial statements and accompanying notes have been prepared in conformity with generally accepted accounting principles in the United States (U.S. GAAP) and applicable regulations of the Securities and Exchange Commission (the SEC) regarding interim financial reporting, and include the accounts of the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. The Company’s fiscal year ends on December 31. Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the applicable required disclosures and regulations of the SEC. Therefore, these unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2023 . Unaudited Interim Condensed Consolidated Financial Information The accompanying interim condensed consolidated balance sheet as of March 31, 2024, the condensed consolidated statements of operations and of comprehensive loss for the three months ended March 31, 2024 and 2023, the condensed consolidated statements of cash flows for the three months ended March 31, 2024 and 2023, the condensed consolidated statements of stockholders’ equity for the three months ended March 31, 2024 and 2023, and the related footnote disclosures are unaudited. These unaudited interim condensed consolidated financial statements have been prepared in accordance with U.S. GAAP. In management’s opinion, the unaudited interim condensed consolidated financial statements include all adjustments necessary to state fairly the Company’s financial position as of March 31, 2024, its results of operations for the three months ended March 31, 2024 and 2023, and its cash flows for the three months ended March 31, 2024 and 2023. The results for the three months ended March 31, 2024 are not necessarily indicative of the results expected for the full year ending December 31, 2024 or any future period. The unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2023 . Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported and disclosed in the condensed consolidated financial statements and accompanying notes to the condensed consolidated financial statements. Such estimates include, but are not limited to, allowance for doubtful accounts, deferred contract acquisitions costs, the period of benefit generated from the Company’s deferred contract acquisition costs, the capitalization and estimated useful life of internal-use software, valuation of acquired intangible assets, the assessment of recoverability of intangible assets and their estimated useful lives, useful lives of property and equipment, the determination of the incremental borrowing rate used for operating lease liabilities, the valuation and recognition of stock-based compensation awards, uncertain tax positions, and the recognition and measurement of current and deferred income tax assets and liabilities. Management bases these estimates and assumptions on historical experience and on various other assumptions that are believed to be reasonable. Due in part to the Hamas-Israel and Russia-Ukraine conflicts, the potential worsening and expansion of such conflicts, and other macroeconomic and geopolitical conditions, there is ongoing uncertainty and significant disruption in the global economy and financial markets. The Company is not aware of any specific event or circumstance that would require an update to its estimates or assumptions or a revision of the carrying value of its assets or liabilities as of May 2, 2024, the date of issuance of this Quarterly Report on Form 10-Q. These estimates and assumptions may change in the future, however, as new events occur and additional information is obtained. Actual results could differ materially from these estimates.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
Summary of Significant Accounting Policies	Mar. 31, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Significant Accounting Policies The Company's significant accounting policies are discussed in the "Notes to Consolidated Financial Statements, Note 2. Summary of Significant Accounting Policies" in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2023. There have been no significant changes to these policies that have had a material impact on the Company's condensed consolidated financial statements and related notes, except as noted below. Change in Accounting Estimate In January 2024, the Company completed an assessment of the useful lives of our servers-network infrastructure, resulting in a change in the estimated useful lives of our servers-network infrastructure from four years to five years. This change in accounting estimate was effective beginning fiscal year 2024. Based on the carrying value of assets in service as of December 31, 2023, the change resulted in a reduction of depreciation expense of $6.2 million for the three months ended March 31, 2024, recorded primarily in cost of revenue. Recent Accounting Pronouncements Recently Adopted Accounting Pronouncements There have been no recently adopted accounting pronouncements since the filing of the Company's Annual Report on Form 10-K for the year ended December 31, 2023 that may have a material impact on the Company's condensed consolidated financial statements.

Revenue

Revenue	3 Months Ended
Revenue	Mar. 31, 2024
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Disaggregation of Revenue Subscription and support revenue is recognized over time and accounted for substantially all of the Company’s revenue for the three months ended March 31, 2024 and 2023. The following table summarizes the revenue by region based on the billing address of customers who have contracted to use the Company’s global network and products: Three Months Ended March 31, 2024 2023 (dollars in thousands) Amount Percentage Amount Percentage United States $ 196,463 52 % $ 152,918 53 % Europe, Middle East, and Africa 105,384 28 % 78,331 27 % Asia Pacific 47,651 12 % 39,218 13 % Other 29,104 8 % 19,708 7 % Total $ 378,602 100 % $ 290,175 100 % The following table summarizes the revenue from contracts by type of customer: Three Months Ended March 31, 2024 2023 (dollars in thousands) Amount Percentage Amount Percentage Channel partners $ 70,451 19 % $ 41,003 14 % Direct customers 308,151 81 % 249,172 86 % Total $ 378,602 100 % $ 290,175 100 % Contract Balances Contract liabilities consist of deferred revenue and include payments received in advance of performance under the contract. Such amounts are recognized as revenue over the contractual period. For the three months ended March 31, 2024 and 2023, the Company recognized revenue of $179.2 million and $107.6 million, respectively, that was included in the corresponding contract liability balance at the beginning of the periods presented. The Company receives payments from customers based upon contractual billing schedules; accounts receivable are recorded when the right to consideration becomes unconditional. Standard payment terms are due upon receipt. Contract assets include amounts related to the Company’s contractual right to consideration for both completed and partially completed performance obligations that have not been invoiced. The following table summarizes the activity of the deferred contract acquisition costs: Three Months Ended March 31, 2024 2023 (in thousands) Beginning balance $ 133,236 $ 93,145 Capitalization of contract acquisition costs 22,398 19,391 Amortization of deferred contract acquisition costs (18,107) (14,109) Ending balance $ 137,527 $ 98,427 The Company did not recognize any impairment losses of deferred contract acquisition costs during the periods presented. Remaining Performance Obligations As of March 31, 2024, the aggregate amount of the transaction price allocated to remaining performance obligations was $1,342.8 million. As of March 31, 2024, the Company expected to recognize 70% of its remaining performance obligations as revenue over the next 12 months with the remainder recognized thereafter.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
Fair Value Measurements	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is defined as the exchange price that would be received from sale of an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Assets and liabilities measured at fair value are classified into the following categories: • Level I: Observable inputs are unadjusted quoted prices in active markets for identical assets or liabilities; • Level II: Observable inputs are quoted prices for similar assets and liabilities in active markets or inputs other than quoted prices that are observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially the full term of the financial instruments; and • Level III: Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. These inputs are based on the Company’s own assumptions used to measure assets and liabilities at fair value and require significant management judgment or estimation. The Company's cash equivalents and restricted cash are comprised of highly liquid money market funds. The Company classifies money market funds within Level I of the fair value hierarchy because they are valued based on quoted market prices in active markets. The Company classifies its investments, which are comprised of U.S. treasury securities, U.S. government agency securities, commercial paper, and corporate bonds, within Level II of the fair value hierarchy because the fair value of these securities is priced by using inputs based on non-binding market consensus prices that are primarily corroborated by observable market data or quoted market prices for similar instruments. The Company recognizes transfers between levels within the fair value hierarchy, if any, at the end of each period. There were no transfers between levels during the periods presented. The following table summarizes the Company’s cash and available-for-sale securities’ amortized cost, unrealized gains (losses), and fair value by significant investment category reported as cash and cash equivalents, restricted cash short-term, restricted cash, or available-for-sale securities as of March 31, 2024 and December 31, 2023. (in thousands) Reported as: March 31, 2024 Amortized Unrealized Unrealized Fair Value Cash & Available-for-sale securities Restricted Cash $ 94,585 $ — $ — $ 94,585 $ 87,212 $ — $ 7,373 Level I: Money market funds 157,722 — — 157,722 157,722 — — Level II: Corporate bonds 340,136 151 (412) 339,875 1,998 337,877 — U.S. treasury securities 953,305 348 (842) 952,811 7,469 945,342 — U.S. government agency securities 36,745 — (69) 36,676 — 36,676 — Commercial paper 141,905 1 — 141,906 — 141,906 — Subtotal 1,472,091 500 (1,323) 1,471,268 9,467 1,461,801 — Total assets measured at fair value on a recurring basis $ 1,724,398 $ 500 $ (1,323) $ 1,723,575 $ 254,401 $ 1,461,801 $ 7,373 (in thousands) Reported as: December 31, 2023 Amortized Unrealized Unrealized Fair Cash & Available-for-sale securities Restricted Cash $ 51,189 $ — $ — $ 51,189 $ 46,829 $ — $ 4,360 Level I: Money market funds 40,035 — — 40,035 40,035 — — Level II: Corporate bonds 312,510 718 (378) 312,850 — 312,850 — U.S. treasury securities 1,020,167 2,344 (544) 1,021,967 — 1,021,967 — U.S. government agency securities 84,154 14 (96) 84,072 — 84,072 — Commercial paper 167,989 2 — 167,991 — 167,991 — Subtotal 1,584,820 3,078 (1,018) 1,586,880 — 1,586,880 — Total assets measured at fair value on a recurring basis $ 1,676,044 $ 3,078 $ (1,018) $ 1,678,104 $ 86,864 $ 1,586,880 $ 4,360 As of March 31, 2024, the Company had $7.4 million in total restricted cash mainly related to irrevocable standby letters of credit and bank guarantees that are required under lease agreements and indemnity holdback consideration associated with asset acquisitions. The aggregate fair value of the Company’s money market funds approximated amortized cost and, as such, there were no unrealized gains or losses on money market funds as of March 31, 2024 and December 31, 2023. Realized gains and losses, net of tax, were not material for any of the periods presented. The amortized cost of available-for-sale investments with maturities less than one year was $1,104.9 million and $1,185.1 million as of March 31, 2024 and December 31, 2023, respectively. The amortized cost of available-for-sale investments with maturities greater than one year was $357.8 million and $399.7 million as of March 31, 2024 and December 31, 2023, respectively. As of March 31, 2024, net unrealized loss on investments was $0.9 million and was included in accumulated other comprehensive income on the condensed consolidated balance sheet. As of December 31, 2023, net unrealized gain on investments was $2.0 million and was included in accumulated other comprehensive income on the condensed consolidated balance sheet. The unrealized gains and losses on available-for-sale investments are related to U.S. treasury securities, U.S. government agency securities, commercial paper, and corporate bonds. The Company determined any unrealized losses to be temporary. Factors considered in determining whether a loss is temporary include the financial condition and near-term prospects of the investee, the extent of the loss related to the credit of the issuer, the expected cash flows from the security, the Company’s intent to sell the security, and whether or not the Company will be required to sell the security before the recovery of its amortized cost. As of March 31, 2024, the Company's investment portfolio consisted of investment grade securities with an average credit rating of AA. The Company carries the 2026 Notes (as defined below) issued in August 2021 at face value less the unamortized issuance costs on its condensed consolidated balance sheets and presents that fair value for disclosure purposes only. As of March 31, 2024 , the fair value of the 2026 Notes was $1,213.4 million. The fair value of the 2026 Notes, which are classified as Level II financial instruments, was determined based on the quoted bid prices of the 2026 Notes in an over-the-counter market on the last trading day of the reporting period. For further details on the 2026 Notes, refer to Note 7 to these condensed consolidated financial statements. The Company classifies financial instruments in Level III of the fair value hierarchy when there is reliance on at least one significant unobservable input to the valuation model. In addition to these unobservable inputs, the valuation models for Level III financial instruments typically also rely on a number of inputs that are readily observable, either directly or indirectly. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires management to make judgments and consider factors specific to the asset or liability. There were no financial instruments classified as Level III of the fair value hierarchy as of March 31, 2024 and December 31, 2023.

Balance Sheet Components

Balance Sheet Components	3 Months Ended
Balance Sheet Components	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Balance Sheet Components	Balance Sheet Components Accounts Receivable, Net As of March 31, 2024 and December 31, 2023, the Company’s allowance for doubtful accounts was $7.2 million and $6.0 million, respectively. Provision for bad debt for the three months ended March 31, 2024 and 2023 was $2.6 million and $1.6 million, respectively. Write-off of uncollectible accounts receivable for the three months ended March 31, 2024 and 2023 was $1.4 million and $1.0 million, respectively. Property and Equipment, Net Property and equipment, net consisted of the following: March 31, 2024 December 31, 2023 (in thousands) Property and equipment: Servers—network infrastructure $ 361,341 $ 330,295 Construction in progress 35,025 45,557 Capitalized internal-use software 83,518 75,163 Office and computer equipment 33,112 32,043 Office furniture 9,015 9,003 Software 5,505 5,422 Leasehold improvements 43,240 42,984 Asset retirement obligation 827 826 Gross property and equipment 571,583 541,293 Less accumulated depreciation and amortization (242,161) (218,480) Total property and equipment, net $ 329,422 $ 322,813 Depreciation and amortization expense on property and equipment for the three months ended March 31, 2024 and 2023 was $24.1 million and $25.8 million, respectively. This includes amortization expense for capitalized internal-use software which totaled $5.5 million and $5.4 million for the three months ended March 31, 2024 and 2023 , respectively . Goodwill As of March 31, 2024 and December 31, 2023, the Company's goodwill was $148.0 million . No goodwill impairments were recorded during the three months ended March 31, 2024 and 2023. Acquired Intangible Assets, Net Acquired intangible assets, net consisted of the following: March 31, 2024 Gross Carrying Accumulated Net Book (in thousands) Developed technology $ 7,083 $ 1,485 $ 5,598 Customer relationships 11,600 2,900 8,700 Total acquired intangible assets, net $ 18,683 $ 4,385 $ 14,298 December 31, 2023 Gross Carrying Accumulated Net Book (in thousands) Developed technology $ 47,183 $ 36,893 $ 10,290 Trade name 1,700 1,488 212 Customer relationships 11,600 2,538 9,062 Total acquired intangible assets, net $ 60,483 $ 40,919 $ 19,564 Amortization of acquired intangible assets was $5.3 million and $4.9 million for the three months ended March 31, 2024 and 2023, respectively. As of March 31, 2024, the estimated future amortization expense of acquired intangible assets was as follows: Estimated (in thousands) Year ending December 31, 2024 (remaining nine months) $ 3,744 2025 4,391 2026 1,450 2027 1,450 2028 1,450 Thereafter 1,813 Total $ 14,298

Leases

Leases	3 Months Ended
Leases	Mar. 31, 2024
Leases [Abstract]
Leases	Leases The Company's lease portfolio consists of real estate and co-location agreements in the United States and internationally. The real estate leases include leases for office space and have remaining lease terms of up to 7.3 years. Certain of these leases contain options that allow the Company to extend or terminate the lease agreement. The Company's co-location leases have remaining lease terms of up to 7.9 years. All of the Company's leases are classified as operating leases. The components of lease cost related to the Company's operating leases included in the condensed consolidated statements of operations were as follows: Three Months Ended March 31, 2024 2023 (in thousands) Operating lease cost $ 11,863 $ 11,061 Total lease cost $ 11,863 $ 11,061 Variable lease cost and short-term lease cost for the three months ended March 31, 2024 and March 31, 2023 were not material. As of March 31, 2024, the Company had $45.9 million of total undiscounted future payments under operating leases that have not yet commenced, which were not included on the condensed consolidated balance sheets. These operating leases will commence between April 2024 and July 2026 and have an average lease term of 3.9 years. As of March 31, 2024, the weighted-average remaining term of the Company’s operating leases was 4.8 years and the weighted-average discount rate used to measure the present value of the operating lease liabilities was 4.8%. Maturities of the operating lease liabilities as of March 31, 2024 are as follows: March 31, 2024 (in thousands) 2024 (remaining nine months) $ 35,076 2025 36,932 2026 32,522 2027 28,004 2028 15,804 Thereafter 22,289 Total lease payments $ 170,627 Less: Imputed interest $ (18,337) Total operating lease liabilities $ 152,290
Leases	Leases The Company's lease portfolio consists of real estate and co-location agreements in the United States and internationally. The real estate leases include leases for office space and have remaining lease terms of up to 7.3 years. Certain of these leases contain options that allow the Company to extend or terminate the lease agreement. The Company's co-location leases have remaining lease terms of up to 7.9 years. All of the Company's leases are classified as operating leases. The components of lease cost related to the Company's operating leases included in the condensed consolidated statements of operations were as follows: Three Months Ended March 31, 2024 2023 (in thousands) Operating lease cost $ 11,863 $ 11,061 Total lease cost $ 11,863 $ 11,061 Variable lease cost and short-term lease cost for the three months ended March 31, 2024 and March 31, 2023 were not material. As of March 31, 2024, the Company had $45.9 million of total undiscounted future payments under operating leases that have not yet commenced, which were not included on the condensed consolidated balance sheets. These operating leases will commence between April 2024 and July 2026 and have an average lease term of 3.9 years. As of March 31, 2024, the weighted-average remaining term of the Company’s operating leases was 4.8 years and the weighted-average discount rate used to measure the present value of the operating lease liabilities was 4.8%. Maturities of the operating lease liabilities as of March 31, 2024 are as follows: March 31, 2024 (in thousands) 2024 (remaining nine months) $ 35,076 2025 36,932 2026 32,522 2027 28,004 2028 15,804 Thereafter 22,289 Total lease payments $ 170,627 Less: Imputed interest $ (18,337) Total operating lease liabilities $ 152,290

Debt

Debt	3 Months Ended
Debt	Mar. 31, 2024
Debt Disclosure [Abstract]
Debt	Debt 2026 Convertible Senior Notes In August 2021, the Company issued $1,293.8 million aggregate principal amount of 0% Convertible Senior Notes due 2026 (the 2026 Notes). The total proceeds from the issuance of the 2026 Notes, net of initial purchaser discounts and commissions and debt issuance costs, were $1,274.0 million. The 2026 Notes are senior unsecured obligations of the Company and will mature on August 15, 2026, unless earlier redeemed, repurchased, or converted, and are governed by the terms of the Indenture dated August 13, 2021 (the 2026 Indenture). The 2026 Notes are 0% convertible senior notes and therefore do not bear regular cash interest. The 2026 Notes are convertible at an initial conversion rate of 5.2263 shares of the Company's Class A common stock per $1,000 principal amount of the 2026 Notes, which is equivalent to an initial conversion price of approximately $191.34 per share, subject to adjustment upon the occurrence of specified events in accordance with the terms of the 2026 Indenture. The 2026 Notes may be converted at any time on or after May 15, 2026 until the close of business on the second scheduled trading day immediately preceding the maturity date. Holders of the 2026 Notes may convert all or any portion of their 2026 Notes at their option at any time prior to the close of business on the business day immediately preceding May 15, 2026, only under the following circumstances: (1) during any calendar quarter (and only during such calendar quarter), if the last reported sale price of the Company's Class A common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any five consecutive trading day period in which the trading price per $1,000 principal amount of the 2026 Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company's Class A common stock and the conversion rate on each such trading day; (3) if the Company calls such 2026 Notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. None of the circumstances described in the paragraphs above were met during the quarter ended March 31, 2024. Refer to Note 7 to the consolidated financial statements in Part II, Item 8 of the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2023 for further information on the 2026 Notes. 2026 Capped Call Transactions In connection with the offering of the 2026 Notes, the Company entered into privately-negotiated capped call option transactions (the 2026 Capped Calls) with certain financial institution counterparties. The 2026 Capped Calls each have an initial strike price of approximately $191.34 per share of the Company's Class A common stock, subject to certain adjustments, which corresponds to the initial conversion price of the 2026 Notes. The 2026 Capped Calls each have an initial cap price of approximately $250.94 per share, subject to certain adjustments. As of March 31, 2024, the terms of the 2026 Capped Calls have not been adjusted. The 2026 Capped Calls are recorded in stockholders' equity and are not accounted for as derivatives. The premium paid for the purchase of the 2026 Capped Calls of $86.3 million was recorded as a reduction to additional paid-in capital on the condensed consolidated balance sheets. Refer to Note 7 to the consolidated financial statements in Part II, Item 8 of the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2023 for further information on the 2026 Capped Calls. 2025 Convertible Senior Notes In May 2020, the Company issued $575.0 million aggregate principal amount of 0.75% Convertible Senior Notes due 2025 (the 2025 Notes, and together with the 2026 Notes, the Notes) . The 2025 Notes were senior unsecured obligations of the Company, with interest payable semi-annually in arrears, at a rate of 0.75% per year. The 2025 Notes were convertible at an initial conversion rate of 26.7187 shares of the Company's Class A common stock per $1,000 principal amount of the 2025 Notes, which was equivalent to an initial conversion price of approximately $37.43 per share, subject to adjustment upon the occurrence of specified events in accordance with the terms of the Indenture dated May 15, 2020 (the 2025 Indenture). After the closing of the transactions described below, no 2025 Notes were outstanding as of March 31, 2024 and December 31, 2023 . During the fiscal year ended December 31, 2021, the Company exchanged approximately $400.0 million aggregate principal amount of the 2025 Notes (the 2025 Notes Exchange) for an aggregate of $400.7 million in cash (including accrued interest) and approximately 7.6 million shares of the Company’s Class A common stock (the Exchange Shares) for aggregate consideration of approximately $1,321.0 million. As a result, the Company recorded a debt extinguishment loss of $72.2 million, representing the difference between the fair value of the liability component of $355.3 million and the carrying value of the 2025 Notes Exchange of $283.1 million at the closing date. The fair value of the liability component was calculated by using an effective interest rate of 4.08%, which was determined by measuring the fair value of similar debt instruments that did not have an associated convertible feature and adjusted to reflect the term of the remaining 2025 Notes. The aggregate consideration of $1,321.0 million was allocated between the fair value of the liability component of $355.3 million and the reacquisition of the equity component of $965.7 million, which was recorded as a reduction to additional paid-in capital and offset by the additional paid-in capital for the Exchange Shares issued. During the fiscal year ended December 31, 2022, the Company settled conversions of approximately $16.6 million aggregate principal amount of the 2025 Notes. The Company elected to settle the conversions in a combination of cash equal to the principal amount of the 2025 Notes converted and the issuance of approximately 0.3 million shares of the Company's Class A common stock for the remainder of the conversion value in excess of the aggregate principal amount converted. The difference between the settlement consideration and the carrying value of the 2025 Notes converted was recorded to additional paid-in-capital on the Company's condensed consolidated balance sheets. During the fiscal year ended December 31, 2023 , the Company repurchased $123.0 million principal amount of the 2025 Notes (the 2025 Notes Repurchases) for approximately $172.7 million in cash, including approximately $0.5 million of accrued interest. The 2025 Notes Repurchases resulted in a $50.3 million loss on extinguishment of debt, of which $1.1 million consisted of unamortized debt issuance costs. T he Company settled conversions of approximately $35.4 million aggregate principal amount of the 2025 Notes. These conversions were exercised by the holders of the 2025 Notes in connection with the Company's issuance of a redemption notice. Pursuant to the terms of the 2025 Indenture, the conversion rate then in effect was 28.5913 shares of the Company's Class A common stock per $1,000 principal amount of the 2025 Notes, inclusive of 1.8726 additional shares added to the initial conversion rate. The Company elected to settle the conversions in a combination of cash equal to the principal amount of the 2025 Notes converted and the issuance of approximately 0.5 million shares of the Company's Class A common stock for the remainder of the conversion value in excess of the aggregate principal amount converted. The difference between the settlement consideration and the carrying value of the 2025 Notes converted was recorded to additional paid-in-capital on the Company's condensed consolidated balance sheets. There are no 2025 Notes outstanding as a result of this transaction. 2025 Capped Call Transactions In connection with the offering of the 2025 Notes, the Company entered into privately-negotiated capped call option transactions (the 2025 Capped C alls) with certain financial institution counterparties . The 2025 Capped Calls each have an initial strike price of approximately $37.43 per share of the Company's Class A common stock, subject to certain adjustments, which corresponds to the initial conversion price of the 2025 Notes. The 2025 Capped Calls each have an initial cap price of $57.58 per share, subject to certain adjustments. As of March 31, 2024, the terms of the 2025 Capped Calls have not been adjusted and no 2025 Capped Calls were exercised or terminated in connection with the 2025 Notes Exchange, the 2025 Notes Repurchases, or any of the conversions of the 2025 Notes. The 2025 Capped Calls are recorded in stockholders' equity and are not accounted for as derivatives. The premium paid for the purchase of the 2025 Capped Calls of $67.3 million was recorded as a reduction to additional paid-in capital on the condensed consolidated balance sheets. Refer to Note 7 to the consolidated financial statements in Part II, Item 8 of the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2023 for further information on the 2025 Capped Calls. The net carrying amounts of the 2026 Notes were as follows: March 31, 2024 December 31, 2023 (in thousands) Principal $ 1,293,750 $ 1,293,750 Unamortized debt issuance costs (9,398) (10,388) Carrying amount, net $ 1,284,352 $ 1,283,362 The following tables set forth total interest expense recognized related to the Notes: Three Months Ended March 31, 2024 2023 2026 Notes 2025 Notes 2026 Notes 2025 Notes (in thousands) Coupon interest expense $ — $ — $ — $ 297 Amortization of debt issuance costs 990 — 990 173 Total $ 990 $ — $ 990 $ 470

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Non-cancelable Purchase Commitments The Company enters into long-term non-cancelable agreements for the purchase of goods and services, including to purchase capacity, such as bandwidth and co-location space, for the Company’s global network. For the lease components of co-location agreements, refer to Note 6 to these condensed consolidated financial statements. As of March 31, 2024, there were no material changes outside the ordinary course of business to the Company’s non-cancelable purchase commitments, including bandwidth and co-location commitments, disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023. Legal Matters From time to time the Company is a party to various legal proceedings that arise in the ordinary course of business. In addition, third parties may from time to time assert claims against the Company in the form of letters and other communications. Management currently believes that there is no pending or threatened legal proceeding to which the Company is a party that is likely to have a material adverse effect on the Company’s condensed consolidated financial statements. However, the results of legal proceedings are inherently unpredictable and if an unfavorable ruling were to occur in any of the legal proceedings there exists the possibility of a material adverse effect on the Company’s financial position, results of operations, and cash flows. The Company accrues for legal proceedings that it considers probable and for which the loss can be reasonably estimated. The Company also discloses material contingencies when it believes a loss is not probable but reasonably possible. Legal costs incurred and expected to be incurred related to litigation matters are expensed as incurred. The Company’s network and associated products are subject to various restrictions under U.S. export control and sanctions laws and regulations, including the U.S. Department of Commerce’s Export Administration Regulations (EAR) and various economic and trade sanctions regulations administered by the U.S. Department of the Treasury’s Office of Foreign Assets Controls (OFAC). The U.S. export control laws and U.S. economic sanctions laws include restrictions or prohibitions on the sale or supply of certain products and services to U.S. embargoed or sanctioned countries, governments, persons and entities and also require authorization for the export of certain encryption items. In addition, various countries regulate the import of certain encryption technology, including through import permitting and licensing requirements and have enacted or could enact laws that could limit the Company’s ability to distribute its products through its network. Although the Company takes precautions to prevent its network and associated products from being accessed or used in violation of such laws, the Company may have inadvertently allowed its network and associated products to be accessed or used by some customers in apparent violation of U.S. economic sanctions laws, including by users in embargoed or sanctioned countries, and the Company may have exported or allowed the download of certain software prior to making required filings with the U.S. Department of Commerce’s Bureau of Industry and Security. As a result, the Company has submitted to OFAC and to the Bureau of Industry and Security a voluntary self-disclosure concerning potential violations, and the Company has submitted a voluntary self-disclosure to the Census Bureau regarding potential violations of the Foreign Trade Regulations related to some incorrect electronic export information statements to the U.S. government for certain hardware exports, which were authorized. The voluntary self-disclosure to the Census Bureau was completed with no penalties in November 2019, and the voluntary self-disclosure to the Bureau of Industry and Security was completed with no penalties in June 2020. The voluntary self-disclosure to OFAC remains under review. If the Company is found to be in violation of U.S. economic sanctions or export control laws, it could result in substantial fines and penalties for the Company and for the individuals working for the Company. The Company may also be adversely affected through other penalties, reputational harm, loss of access to certain markets or otherwise. No loss has been recognized in the consolidated financial statements for this loss contingency as it is not probable a loss has been incurred and the range of a possible loss is not yet estimable. Guarantees and Indemnifications If the Company's services do not meet certain service level commitments, its contracted customers and certain of its pay-as-you-go customers are entitled to receive service credits, and in certain cases, refunds, each representing a form of variable consideration. To date, the Company has not incurred any material costs as a result of such commitments. The Company’s arrangements generally include certain provisions for indemnifying customers against liabilities if its products or services infringe a third-party’s intellectual property rights. It is not possible to determine the maximum potential amount under these indemnification obligations due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. To date, the Company has not incurred any material costs as a result of such obligations and has not accrued any liabilities related to such obligations in the condensed consolidated financial statements. The Company has also agreed to indemnify its directors, executive officers, and certain other employees for costs associated with any fees, expenses, judgments, fines, and settlement amounts incurred by them in any action or proceeding to which any of them are, or are threatened to be, made a party by reason of their service as a director or officer. The Company maintains director and officer insurance coverage that would generally enable it to recover a portion of any future amounts paid. The Company also may be subject to indemnification obligations by law with respect to the actions of its employees under certain circumstances and in certain jurisdictions.

Common Stock

Common Stock	3 Months Ended
Common Stock	Mar. 31, 2024
Equity [Abstract]
Common Stock	Common Stock The Company’s amended and restated certificate of incorporation authorizes the issuance of Class A common stock and Class B common stock. The holder of each share of Class A common stock is entitled to one vote per share, while the holder of each share of Class B common stock is entitled to 10 votes per share. Holders of the Company’s Class A common stock and Class B common stock are entitled to dividends when, as and if, declared by the Company’s Board of Directors, subject to the rights of the holders of all classes of stock outstanding having priority rights to dividends. Any dividends paid to the holders of the Class A common stock and Class B common stock will be paid on a pro rata basis. As of March 31, 2024 and December 31, 2023, the Company had not declared any dividends. The rights of the holders of Class A and Class B common stock are identical, except with respect to voting and conversion. Shares of the Company's Class B common stock are convertible into an equivalent number of shares of the Company's Class A common stock and generally convert into shares of the Company's Class A common stock upon cessation of employment or transfer, except for certain transfers described in the Company's amended and restated certificate of incorporation. Class A common stock and Class B common stock are referred to, collectively, as common stock throughout the notes to these condensed consolidated financial statements, unless otherwise indicated. Common Stock Reserved for Future Issuance Shares of common stock reserved for future issuance, on an as-if converted basis, are as follows: March 31, 2024 December 31, 2023 (in thousands) 2026 Notes 10,311 10,311 Stock options issued and outstanding 10,731 12,523 Remaining shares available for issuance under the 2019 Plan 73,837 56,442 Outstanding and unsettled RSUs 9,967 10,894 Shares available for issuance under the Employee Stock Purchase Plan (ESPP) 17,219 13,844 Total shares of common stock reserved 122,065 104,014

Stock-based Compensation

Stock-based Compensation	3 Months Ended
Stock-based Compensation	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
Stock-based Compensation	Stock-based Compensation Equity Incentive Plans The 2019 Equity Incentive Plan (2019 Plan) provides for the granting of stock options, restricted stock, RSUs, stock appreciation rights, performance shares, performance stock units, and performance awards for the Company's Class A common stock to the Company's employees, directors, and consultants. Certain outstanding equity awards were granted under the Company’s 2010 Equity Incentive Plan that is no longer active, but continues to govern the outstanding equity awards granted thereunder. Stock Options During the fiscal year ended December 31, 2022, the Company granted to certain executive officers and other key employees 10-year stock options with market conditions that vest and becomes exercisable only if the Company achieves certain stock price milestones and the employee continues to provide service to the Company through the applicable vesting dates (the Performance Options). The Performance Options were granted under the 2019 Plan and consist of 10-year options to purchase an aggregate of 5,575,000 shares of the Company’s Class A common stock. In April 2023, the Company's compensation committee and Board of Directors approved amendments to the Performance Options, effective as of May 1, 2023. These amendments reduced the exercise price per share of the Performance Options to the fair market value per share of the Company's Class A common stock on the effective date of the amendment, and modified the structure of the Performance Options to contain a total of nine separate tranches with added stock price milestones. These amendments resulted in an additional stock-based compensation expense of approximately $25.8 million to be recognized over a weighted-average requisite service period. The Company achieved the stock price milestone for the first tranche of 224,250 Performance Options during the three months ended March 31, 2024. Following the achievement of the stock price milestone, the first tranche shares are subject to six quarterly vesting periods on a ratable basis. In April 2024, the Company achieved the stock price milestone for the second tranche of 207,750 Performance Options. Following the achievement of the achievement of the stock price milestone, the second tranche shares are subject to six quarterly vesting periods on a ratable basis. The Company recognizes stock-based compensation expense for the Performance Options based on the grant date fair value and using a graded attribution method over the weighted-average requisite service period. The total stock-based compensation expense for the Performance Options for the three months ended March 31, 2024 and 2023 were $2.6 million and $6.9 million, respectively. As of March 31, 2024, there was $151.4 million of unrecognized stock-based compensation expense related to the Performance Options that is expected to be recognized over a weighted-average period of 4.1 years . Restricted Stock Units The total stock-based compensation expense for RSUs for the three months ended March 31, 2024 and 2023 was $63.9 million and $44.3 million, respectively. As of March 31, 2024, the total unrecognized stock-based compensation expense related to unvested RSUs was $606.3 million that is expected to be recognized over a weighted-average period of 2.8 years. 2019 Employee Stock Purchase Plan In September 2019, the Company's Board of Directors adopted and stockholders approved the ESPP, which became effective one business day prior to the effective date of the Company's registration statement on Form S-1 filed with the SEC in connection with the Company’s initial public offering. No shares of Class A common stock were purchased under the ESPP during the three months ended March 31, 2024 and 2023. As of March 31, 2024, the total unrecognized stock-based compensation expense related to the ESPP was $1.0 million and is expected to be recognized over a weighted average period of 0.1 years. Stock-based Compensation Expense The following table sets forth the total stock-based compensation expense included in the Company’s condensed consolidated statements of operations: Three Months Ended March 31, 2024 2023 (in thousands) Cost of revenue $ 2,503 $ 1,683 Sales and marketing 20,177 14,820 Research and development 25,716 27,737 General and administrative 21,327 13,161 Total stock-based compensation expense $ 69,723 $ 57,401

Net Loss per Share Attributable

Net Loss per Share Attributable to Common Stockholders	3 Months Ended
Net Loss per Share Attributable to Common Stockholders	Mar. 31, 2024
Earnings Per Share [Abstract]
Net Loss per Share Attributable to Common Stockholders	Net Loss per Share Attributable to Common Stockholders The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders: Three Months Ended March 31, 2024 2023 Class A Class B Class A Class B (in thousands, except per share data) Net loss attributable to common stockholders $ (31,429) $ (4,114) $ (33,207) $ (4,875) Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted 299,398 39,185 288,096 42,293 Net loss per share attributable to common stockholders, basic and diluted $ (0.10) $ (0.10) $ (0.12) $ (0.12) Since the Company was in a loss position for all periods presented, basic net loss per share is the same as diluted net loss per share as the inclusion of all potential common shares outstanding would have been antidilutive. The potential shares of common stock that were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been antidilutive are as follows: March 31, 2024 2023 (in thousands) 2025 Notes — 4,233 2026 Notes 6,762 6,762 Shares subject to repurchase — 615 Unexercised stock options 10,731 14,821 Unvested restricted stock and RSUs 9,967 9,874 Shares issuable pursuant to the ESPP 186 245 Total 27,646 36,550

Income Taxes

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The computation of the provision for income taxes for interim periods is determined by applying the estimated annual effective tax rate to year-to-date earnings from recurring operations and adjusting for discrete tax items recorded in the period. The Company's ability to estimate the geographic mix of earnings is impacted by the relatively high-growth nature of the business, fluctuations of business operations by country, and implementation of tax planning strategies. The Company recorded an income tax expense of $2.3 million and $1.3 million f or the three months ended March 31, 2024 and 2023, respectively. The income tax expense of $2.3 million and $1.3 million for the three months ended March 31, 2024 and March 31, 2023, respectively, was primarily related to withholding taxes in the United States and income tax expense from profitable foreign jurisdictions. In determining the need for a valuation allowance, the Company weighs both positive and negative evidence in the various jurisdictions in which it operates to determine whether it is more likely than not that its deferred tax assets are realizable. A full valuation allowance has been established in the United States and United Kingdom and no deferred tax assets and related tax benefits have been recognized in the consolidated financial statements. There is no valuation allowance associated with any other foreign jurisdictions.

Segment and Geographic Informat

Segment and Geographic Information	3 Months Ended
Segment and Geographic Information	Mar. 31, 2024
Segment Reporting [Abstract]
Segment and Geographic Information	Segment and Geographic Information The Company’s chief operating decision maker (CODM) is its CEO, President and COO, and CFO. Collectively, the CODM reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. The Company has no segment managers who are held accountable by the CODM for operations, operating results, and planning for levels or components below the consolidated unit level. Accordingly, the Company has determined it has a single operating segment. Refer to Note 3 to these condensed consolidated financial statements for revenue by geography. The Company’s property and equipment, net, by geographic area were as follows: March 31, 2024 December 31, 2023 (in thousands) United States $ 186,252 $ 191,853 Rest of the world 143,170 130,960 Total property and equipment, net $ 329,422 $ 322,813 No single country other than the United States accounted for more than 10% of total property and equipment, net as of March 31, 2024 and December 31, 2023.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net loss	$ (35,543)	$ (38,082)

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Mar. 31, 2024 shares
Trading Arrangements, by Individual
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Carl Ledbetter [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement	On February 28, 2024, Carl Ledbetter, a member of our Board of Directors, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of up to 130,000 shares of our Class A common stock. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until June 24, 2025, or earlier if all transactions under the trading arrangement are completed.
Name	Carl Ledbetter
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	February 28, 2024
Arrangement Duration	482 days
Aggregate Available	130,000
Janel Riley [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement	On February 28, 2024, Janel Riley, our Chief Accounting Officer, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of 1,392 shares of our Class A common stock plus an amount of shares of Class A common stock settled, net of taxes, following the vesting and settlement of RSUs. The number of shares to be withheld, and therefore the exact number of shares to be sold pursuant to Ms. Riley’s trading arrangement can only be determined upon the occurrence of the future vesting events. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until May 30, 2025, or earlier if all transactions under the trading arrangement are completed.
Name	Janel Riley
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	February 28, 2024
Arrangement Duration	457 days
Aggregate Available	1,392

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
Summary of Significant Accounting Policies (Policies)	Mar. 31, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of PresentationThe accompanying interim condensed consolidated financial statements and accompanying notes have been prepared in conformity with generally accepted accounting principles in the United States (U.S. GAAP) and applicable regulations of the Securities and Exchange Commission (the SEC) regarding interim financial reporting, and include the accounts of the Company and its wholly-owned subsidiaries. Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the applicable required disclosures and regulations of the SEC. Therefore, these unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2023 .
Principles of Consolidation	Principles of ConsolidationAll intercompany balances and transactions have been eliminated in consolidation.
Fiscal Period	The Company’s fiscal year ends on December 31.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported and disclosed in the condensed consolidated financial statements and accompanying notes to the condensed consolidated financial statements. Such estimates include, but are not limited to, allowance for doubtful accounts, deferred contract acquisitions costs, the period of benefit generated from the Company’s deferred contract acquisition costs, the capitalization and estimated useful life of internal-use software, valuation of acquired intangible assets, the assessment of recoverability of intangible assets and their estimated useful lives, useful lives of property and equipment, the determination of the incremental borrowing rate used for operating lease liabilities, the valuation and recognition of stock-based compensation awards, uncertain tax positions, and the recognition and measurement of current and deferred income tax assets and liabilities. Management bases these estimates and assumptions on historical experience and on various other assumptions that are believed to be reasonable. Due in part to the Hamas-Israel and Russia-Ukraine conflicts, the potential worsening and expansion of such conflicts, and other macroeconomic and geopolitical conditions, there is ongoing uncertainty and significant disruption in the global economy and financial markets. The Company is not aware of any specific event or circumstance that would require an update to its estimates or assumptions or a revision of the carrying value of its assets or liabilities as of May 2, 2024, the date of issuance of this Quarterly Report on Form 10-Q. These estimates and assumptions may change in the future, however, as new events occur and additional information is obtained. Actual results could differ materially from these estimates. Change in Accounting Estimate In January 2024, the Company completed an assessment of the useful lives of our servers-network infrastructure, resulting in a change in the estimated useful lives of our servers-network infrastructure from four years to five years. This change in accounting estimate was effective beginning fiscal year 2024. Based on the carrying value of assets in service as of December 31, 2023, the change resulted in a reduction of depreciation expense of $6.2 million for the three months ended March 31, 2024, recorded primarily in cost of revenue.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recently Adopted Accounting Pronouncements There have been no recently adopted accounting pronouncements since the filing of the Company's Annual Report on Form 10-K for the year ended December 31, 2023 that may have a material impact on the Company's condensed consolidated financial statements.

Revenue (Tables)

Revenue (Tables)	3 Months Ended
Revenue (Tables)	Mar. 31, 2024
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	The following table summarizes the revenue by region based on the billing address of customers who have contracted to use the Company’s global network and products: Three Months Ended March 31, 2024 2023 (dollars in thousands) Amount Percentage Amount Percentage United States $ 196,463 52 % $ 152,918 53 % Europe, Middle East, and Africa 105,384 28 % 78,331 27 % Asia Pacific 47,651 12 % 39,218 13 % Other 29,104 8 % 19,708 7 % Total $ 378,602 100 % $ 290,175 100 % The following table summarizes the revenue from contracts by type of customer: Three Months Ended March 31, 2024 2023 (dollars in thousands) Amount Percentage Amount Percentage Channel partners $ 70,451 19 % $ 41,003 14 % Direct customers 308,151 81 % 249,172 86 % Total $ 378,602 100 % $ 290,175 100 %
Schedule of Deferred Contract Acquisition Costs	The following table summarizes the activity of the deferred contract acquisition costs: Three Months Ended March 31, 2024 2023 (in thousands) Beginning balance $ 133,236 $ 93,145 Capitalization of contract acquisition costs 22,398 19,391 Amortization of deferred contract acquisition costs (18,107) (14,109) Ending balance $ 137,527 $ 98,427

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
Fair Value Measurements (Tables)	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value by Significant Investment Category	The following table summarizes the Company’s cash and available-for-sale securities’ amortized cost, unrealized gains (losses), and fair value by significant investment category reported as cash and cash equivalents, restricted cash short-term, restricted cash, or available-for-sale securities as of March 31, 2024 and December 31, 2023. (in thousands) Reported as: March 31, 2024 Amortized Unrealized Unrealized Fair Value Cash & Available-for-sale securities Restricted Cash $ 94,585 $ — $ — $ 94,585 $ 87,212 $ — $ 7,373 Level I: Money market funds 157,722 — — 157,722 157,722 — — Level II: Corporate bonds 340,136 151 (412) 339,875 1,998 337,877 — U.S. treasury securities 953,305 348 (842) 952,811 7,469 945,342 — U.S. government agency securities 36,745 — (69) 36,676 — 36,676 — Commercial paper 141,905 1 — 141,906 — 141,906 — Subtotal 1,472,091 500 (1,323) 1,471,268 9,467 1,461,801 — Total assets measured at fair value on a recurring basis $ 1,724,398 $ 500 $ (1,323) $ 1,723,575 $ 254,401 $ 1,461,801 $ 7,373 (in thousands) Reported as: December 31, 2023 Amortized Unrealized Unrealized Fair Cash & Available-for-sale securities Restricted Cash $ 51,189 $ — $ — $ 51,189 $ 46,829 $ — $ 4,360 Level I: Money market funds 40,035 — — 40,035 40,035 — — Level II: Corporate bonds 312,510 718 (378) 312,850 — 312,850 — U.S. treasury securities 1,020,167 2,344 (544) 1,021,967 — 1,021,967 — U.S. government agency securities 84,154 14 (96) 84,072 — 84,072 — Commercial paper 167,989 2 — 167,991 — 167,991 — Subtotal 1,584,820 3,078 (1,018) 1,586,880 — 1,586,880 — Total assets measured at fair value on a recurring basis $ 1,676,044 $ 3,078 $ (1,018) $ 1,678,104 $ 86,864 $ 1,586,880 $ 4,360

Balance Sheet Components (Table

Balance Sheet Components (Tables)	3 Months Ended
Balance Sheet Components (Tables)	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Property and Equipment, Net	Property and equipment, net consisted of the following: March 31, 2024 December 31, 2023 (in thousands) Property and equipment: Servers—network infrastructure $ 361,341 $ 330,295 Construction in progress 35,025 45,557 Capitalized internal-use software 83,518 75,163 Office and computer equipment 33,112 32,043 Office furniture 9,015 9,003 Software 5,505 5,422 Leasehold improvements 43,240 42,984 Asset retirement obligation 827 826 Gross property and equipment 571,583 541,293 Less accumulated depreciation and amortization (242,161) (218,480) Total property and equipment, net $ 329,422 $ 322,813
Schedule of Acquired Intangible Assets, Net	Acquired intangible assets, net consisted of the following: March 31, 2024 Gross Carrying Accumulated Net Book (in thousands) Developed technology $ 7,083 $ 1,485 $ 5,598 Customer relationships 11,600 2,900 8,700 Total acquired intangible assets, net $ 18,683 $ 4,385 $ 14,298 December 31, 2023 Gross Carrying Accumulated Net Book (in thousands) Developed technology $ 47,183 $ 36,893 $ 10,290 Trade name 1,700 1,488 212 Customer relationships 11,600 2,538 9,062 Total acquired intangible assets, net $ 60,483 $ 40,919 $ 19,564
Schedule of Estimated Future Amortization Expense of Acquired Intangible Assets	As of March 31, 2024, the estimated future amortization expense of acquired intangible assets was as follows: Estimated (in thousands) Year ending December 31, 2024 (remaining nine months) $ 3,744 2025 4,391 2026 1,450 2027 1,450 2028 1,450 Thereafter 1,813 Total $ 14,298

Leases (Tables)

Leases (Tables)	3 Months Ended
Leases (Tables)	Mar. 31, 2024
Leases [Abstract]
Schedule of Lease Costs	The components of lease cost related to the Company's operating leases included in the condensed consolidated statements of operations were as follows: Three Months Ended March 31, 2024 2023 (in thousands) Operating lease cost $ 11,863 $ 11,061 Total lease cost $ 11,863 $ 11,061
Schedule of Lease Liability Maturities	Maturities of the operating lease liabilities as of March 31, 2024 are as follows: March 31, 2024 (in thousands) 2024 (remaining nine months) $ 35,076 2025 36,932 2026 32,522 2027 28,004 2028 15,804 Thereafter 22,289 Total lease payments $ 170,627 Less: Imputed interest $ (18,337) Total operating lease liabilities $ 152,290

Debt (Tables)

Debt (Tables)	3 Months Ended
Debt (Tables)	Mar. 31, 2024
Debt Disclosure [Abstract]
Schedule of Convertible Debt	The net carrying amounts of the 2026 Notes were as follows: March 31, 2024 December 31, 2023 (in thousands) Principal $ 1,293,750 $ 1,293,750 Unamortized debt issuance costs (9,398) (10,388) Carrying amount, net $ 1,284,352 $ 1,283,362
Schedule of Interest Expense	The following tables set forth total interest expense recognized related to the Notes: Three Months Ended March 31, 2024 2023 2026 Notes 2025 Notes 2026 Notes 2025 Notes (in thousands) Coupon interest expense $ — $ — $ — $ 297 Amortization of debt issuance costs 990 — 990 173 Total $ 990 $ — $ 990 $ 470

Common Stock (Tables)

Common Stock (Tables)	3 Months Ended
Common Stock (Tables)	Mar. 31, 2024
Equity [Abstract]
Schedule of Common Stock Reserved for Future Issuance	Shares of common stock reserved for future issuance, on an as-if converted basis, are as follows: March 31, 2024 December 31, 2023 (in thousands) 2026 Notes 10,311 10,311 Stock options issued and outstanding 10,731 12,523 Remaining shares available for issuance under the 2019 Plan 73,837 56,442 Outstanding and unsettled RSUs 9,967 10,894 Shares available for issuance under the Employee Stock Purchase Plan (ESPP) 17,219 13,844 Total shares of common stock reserved 122,065 104,014

Stock-based Compensation (Table

Stock-based Compensation (Tables)	3 Months Ended
Stock-based Compensation (Tables)	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
Schedule of Stock-based Compensation Expense	The following table sets forth the total stock-based compensation expense included in the Company’s condensed consolidated statements of operations: Three Months Ended March 31, 2024 2023 (in thousands) Cost of revenue $ 2,503 $ 1,683 Sales and marketing 20,177 14,820 Research and development 25,716 27,737 General and administrative 21,327 13,161 Total stock-based compensation expense $ 69,723 $ 57,401

Net Loss per Share Attributab_2

Net Loss per Share Attributable to Common Stockholders (Tables)	3 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Net Loss per Share Attributable to Common Stockholders	The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders: Three Months Ended March 31, 2024 2023 Class A Class B Class A Class B (in thousands, except per share data) Net loss attributable to common stockholders $ (31,429) $ (4,114) $ (33,207) $ (4,875) Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted 299,398 39,185 288,096 42,293 Net loss per share attributable to common stockholders, basic and diluted $ (0.10) $ (0.10) $ (0.12) $ (0.12)
Schedule of Potential Shares of Common Stock Excluded from Computation of Basic and Diluted Net Loss per Share Attributable to Common Stockholders	The potential shares of common stock that were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been antidilutive are as follows: March 31, 2024 2023 (in thousands) 2025 Notes — 4,233 2026 Notes 6,762 6,762 Shares subject to repurchase — 615 Unexercised stock options 10,731 14,821 Unvested restricted stock and RSUs 9,967 9,874 Shares issuable pursuant to the ESPP 186 245 Total 27,646 36,550

Segment and Geographic Inform_2

Segment and Geographic Information (Tables)	3 Months Ended
Segment and Geographic Information (Tables)	Mar. 31, 2024
Segment Reporting [Abstract]
Schedule of Property and Equipment, Net by Geographic Area	The Company’s property and equipment, net, by geographic area were as follows: March 31, 2024 December 31, 2023 (in thousands) United States $ 186,252 $ 191,853 Rest of the world 143,170 130,960 Total property and equipment, net $ 329,422 $ 322,813

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Jan. 01, 2024	Dec. 31, 2023
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reduction in depreciation	$ (24,100)	$ (25,800)
Servers—network infrastructure
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Useful life			5 years	4 years
Servers—network infrastructure \| Service Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reduction in depreciation	$ 6,200

Revenue - Disaggregation of Rev

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 378,602	$ 290,175
Geographic Concentration Risk \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of Revenue	100%	100%
Sales Channel Concentration Risk \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of Revenue	100%	100%
Channel partners
Disaggregation of Revenue [Line Items]
Revenue	$ 70,451	$ 41,003
Channel partners \| Sales Channel Concentration Risk \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of Revenue	19%	14%
Direct customers
Disaggregation of Revenue [Line Items]
Revenue	$ 308,151	$ 249,172
Direct customers \| Sales Channel Concentration Risk \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of Revenue	81%	86%
United States
Disaggregation of Revenue [Line Items]
Revenue	$ 196,463	$ 152,918
United States \| Geographic Concentration Risk \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of Revenue	52%	53%
Europe, Middle East, and Africa
Disaggregation of Revenue [Line Items]
Revenue	$ 105,384	$ 78,331
Europe, Middle East, and Africa \| Geographic Concentration Risk \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of Revenue	28%	27%
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue	$ 47,651	$ 39,218
Asia Pacific \| Geographic Concentration Risk \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of Revenue	12%	13%
Other
Disaggregation of Revenue [Line Items]
Revenue	$ 29,104	$ 19,708
Other \| Geographic Concentration Risk \| Revenue
Disaggregation of Revenue [Line Items]
Percentage of Revenue	8%	7%

Revenue - Narratives (Details)

Revenue - Narratives (Details) - USD ($)	3 Months Ended
Revenue - Narratives (Details) - USD ($)	Mar. 31, 2024	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue recognized	$ 179,200,000	$ 107,600,000
Impairment loss	$ 0	$ 0

Revenue - Deferred Contract Acq

Revenue - Deferred Contract Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Capitalized Contract Cost [Roll Forward]
Beginning balance	$ 133,236	$ 93,145
Capitalization of contract acquisition costs	22,398	19,391
Amortization of deferred contract acquisition costs	(18,107)	(14,109)
Ending balance	$ 137,527	$ 98,427

Revenue - Remaining Performance

Revenue - Remaining Performance Obligations (Details) $ in Millions	Mar. 31, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, amount	$ 1,342.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, percent	70%
Remaining performance obligation, expected timing of satisfaction	12 months

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Cash and Available-for-sale Debt Securities' Amortized Cost, Unrealized Gains (Losses) and Fair Value by Significant Investment Category (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	$ 254,401,000	$ 86,864,000
Amortized Cost	1,724,398,000	1,676,044,000
Unrealized Gain	500,000	3,078,000
Unrealized (Loss)	(1,323,000)	(1,018,000)
Fair Value	1,723,575,000	1,678,104,000
Cash
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	94,585,000	51,189,000
Unrealized Gain	0	0
Unrealized (Loss)	0	0
Fair Value	94,585,000	51,189,000
Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Unrealized Gain	0	0
Unrealized (Loss)	0	0
Level I \| Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	157,722,000	40,035,000
Unrealized Gain	0	0
Unrealized (Loss)	0	0
Fair Value	157,722,000	40,035,000
Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	1,472,091,000	1,584,820,000
Unrealized Gain	500,000	3,078,000
Unrealized (Loss)	(1,323,000)	(1,018,000)
Fair Value	1,471,268,000	1,586,880,000
Level II \| Corporate bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	340,136,000	312,510,000
Unrealized Gain	151,000	718,000
Unrealized (Loss)	(412,000)	(378,000)
Fair Value	339,875,000	312,850,000
Level II \| U.S. treasury securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	953,305,000	1,020,167,000
Unrealized Gain	348,000	2,344,000
Unrealized (Loss)	(842,000)	(544,000)
Fair Value	952,811,000	1,021,967,000
Level II \| U.S. government agency securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	36,745,000	84,154,000
Unrealized Gain	0	14,000
Unrealized (Loss)	(69,000)	(96,000)
Fair Value	36,676,000	84,072,000
Level II \| Commercial paper
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	141,905,000	167,989,000
Unrealized Gain	1,000	2,000
Unrealized (Loss)	0	0
Fair Value	141,906,000	167,991,000
Cash & Cash Equivalents \| Fair Value, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets measured at fair value on a recurring basis	254,401,000	86,864,000
Cash & Cash Equivalents \| Fair Value, Recurring \| Cash
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	87,212,000	46,829,000
Cash & Cash Equivalents \| Fair Value, Recurring \| Level I \| Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	157,722,000	40,035,000
Cash & Cash Equivalents \| Fair Value, Recurring \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	9,467,000	0
Cash & Cash Equivalents \| Fair Value, Recurring \| Level II \| Corporate bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	1,998,000	0
Cash & Cash Equivalents \| Fair Value, Recurring \| Level II \| U.S. treasury securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	7,469,000	0
Cash & Cash Equivalents \| Fair Value, Recurring \| Level II \| U.S. government agency securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	0	0
Cash & Cash Equivalents \| Fair Value, Recurring \| Level II \| Commercial paper
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	0	0
Available-for-sale securities \| Fair Value, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	1,461,801,000	1,586,880,000
Available-for-sale securities \| Fair Value, Recurring \| Cash
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	0	0
Available-for-sale securities \| Fair Value, Recurring \| Level I \| Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	0	0
Available-for-sale securities \| Fair Value, Recurring \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	1,461,801,000	1,586,880,000
Available-for-sale securities \| Fair Value, Recurring \| Level II \| Corporate bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	337,877,000	312,850,000
Available-for-sale securities \| Fair Value, Recurring \| Level II \| U.S. treasury securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	945,342,000	1,021,967,000
Available-for-sale securities \| Fair Value, Recurring \| Level II \| U.S. government agency securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	36,676,000	84,072,000
Available-for-sale securities \| Fair Value, Recurring \| Level II \| Commercial paper
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	141,906,000	167,991,000
Restricted Cash (Current and Non-Current) \| Fair Value, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets measured at fair value on a recurring basis	7,373,000	4,360,000
Restricted Cash (Current and Non-Current) \| Fair Value, Recurring \| Cash
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	7,373,000	4,360,000
Restricted Cash (Current and Non-Current) \| Fair Value, Recurring \| Level I \| Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	0	0
Restricted Cash (Current and Non-Current) \| Fair Value, Recurring \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	0	0
Restricted Cash (Current and Non-Current) \| Fair Value, Recurring \| Level II \| Corporate bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	0	0
Restricted Cash (Current and Non-Current) \| Fair Value, Recurring \| Level II \| U.S. treasury securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	0	0
Restricted Cash (Current and Non-Current) \| Fair Value, Recurring \| Level II \| U.S. government agency securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	0	0
Restricted Cash (Current and Non-Current) \| Fair Value, Recurring \| Level II \| Commercial paper
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 0	$ 0

Fair Value Measurements - Narra

Fair Value Measurements - Narratives (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Restricted cash	$ 7,400,000
Amortized cost of available-for-sale investments with maturities less than one year	1,104,900,000	$ 1,185,100,000
Amortized cost of available-for-sale investments with maturities greater than one year	357,800,000	399,700,000
Net (loss) gain on investments, net of tax	(900,000)	2,000,000
Convertible Debt \| 2026 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument, fair value	1,213,400,000
Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Unrealized gain	0	0
Unrealized loss	$ 0	$ 0

Balance Sheet Components - Acco

Balance Sheet Components - Accounts Receivable, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Allowance for doubtful accounts	$ 7.2		$ 6
Provision for bad debt expense	2.6	$ 1.6
Write-off of uncollectible accounts receivable	$ 1.4	$ 1

Balance Sheet Components - Prop

Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 571,583		$ 541,293
Less accumulated depreciation and amortization	(242,161)		(218,480)
Total property and equipment, net	329,422		322,813
Depreciation	24,100	$ 25,800
Servers—network infrastructure
Property, Plant and Equipment [Line Items]
Gross property and equipment	361,341		330,295
Construction in progress
Property, Plant and Equipment [Line Items]
Gross property and equipment	35,025		45,557
Capitalized internal-use software
Property, Plant and Equipment [Line Items]
Gross property and equipment	83,518		75,163
Office and computer equipment
Property, Plant and Equipment [Line Items]
Gross property and equipment	33,112		32,043
Office furniture
Property, Plant and Equipment [Line Items]
Gross property and equipment	9,015		9,003
Software
Property, Plant and Equipment [Line Items]
Gross property and equipment	5,505		5,422
Depreciation	5,500	$ 5,400
Leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment	43,240		42,984
Asset retirement obligation
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 827		$ 826

Balance Sheet Components - Good

Balance Sheet Components - Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Goodwill	$ 148,047		$ 148,047
Goodwill, impairment loss	0	$ 0
Amortization of acquired intangible assets	$ 5,300	$ 4,900

Balance Sheet Components - Acqu

Balance Sheet Components - Acquired Intangible Assets, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 18,683		$ 60,483
Accumulated Amortization	4,385		40,919
Net Book Value	14,298		19,564
Amortization of acquired intangible assets	5,300	$ 4,900
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,083		47,183
Accumulated Amortization	1,485		36,893
Net Book Value	5,598		10,290
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount			1,700
Accumulated Amortization			1,488
Net Book Value			212
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	11,600		11,600
Accumulated Amortization	2,900		2,538
Net Book Value	$ 8,700		$ 9,062

Balance Sheet Components - Esti

Balance Sheet Components - Estimated Future Amortization Expense of Acquired Intangible Assets, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
2024 (remaining nine months)	$ 3,744
2025	4,391
2026	1,450
2027	1,450
2028	1,450
Thereafter	1,813
Net Book Value	$ 14,298	$ 19,564

Leases - Narratives (Details)

Leases - Narratives (Details) $ in Millions	Mar. 31, 2024 USD ($)
Lessee, Lease, Description [Line Items]
Remaining lease term (up to)	7 years 3 months 18 days
Lease not yet commenced, undiscounted amount	$ 45.9
Lease not yet commenced, term of contract	3 years 10 months 24 days
Weighted average remaining lease term	4 years 9 months 18 days
Operating lease, weighted average discount rate, percent	4.80%
Co-location Asset Lease
Lessee, Lease, Description [Line Items]
Remaining lease term (up to)	7 years 10 months 24 days

Leases - Schedule of Lease Cost

Leases - Schedule of Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Operating lease cost	$ 11,863	$ 11,061
Total lease cost	$ 11,863	$ 11,061

Leases - Lease Liability Maturi

Leases - Lease Liability Maturities (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Leases [Abstract]
2024 (remaining nine months)	$ 35,076
2025	36,932
2026	32,522
2027	28,004
2028	15,804
Thereafter	22,289
Total lease payments	170,627
Less: Imputed interest	(18,337)
Total operating lease liabilities	$ 152,290

Debt - 2026 Convertible Senior

Debt - 2026 Convertible Senior Notes (Details) - 2026 Notes - Convertible Debt	1 Months Ended
	Aug. 31, 2021 USD ($) day $ / shares
Debt Instrument [Line Items]
Debt principal amount \| $	$ 1,293,800,000
Interest rate	0%
Proceeds from convertible debt \| $	$ 1,274,000,000
Convertible debt, conversion ratio	0.0052263
Conversion price (in dollars per share) \| $ / shares	$ 191.34
Last Reported Stock Price At Lease 130% Of The Debt Conversion Price
Debt Instrument [Line Items]
Conversion requirement, threshold trading days (at least)	20
Conversion requirement, threshold consecutive trading days	30
Conversion requirement, threshold percentage of stock price trigger (at least)	130%
Principal Amount Less Than 98% of the Product
Debt Instrument [Line Items]
Conversion requirement, threshold trading days (at least)	5
Conversion requirement, threshold consecutive trading days	5
Conversion requirement, threshold percentage of stock price trigger (at least)	98%

Debt - 2026 Capped Call Transac

Debt - 2026 Capped Call Transactions (Details) - 2026 Notes - Convertible Debt $ / shares in Units, $ in Millions	1 Months Ended
	Aug. 31, 2021 USD ($) $ / shares
Debt Instrument [Line Items]
Purchases of capped calls related to convertible senior notes \| $	$ 86.3
Capped Calls \| Long \| Class A common stock
Debt Instrument [Line Items]
Strike price (in dollars per share)	$ 191.34
Capped call, initial cap price (in dollars per share)	$ 250.94

Debt - 2025 Convertible Senior

Debt - 2025 Convertible Senior Notes (Details) - 2025 Notes		1 Months Ended	12 Months Ended
Debt - 2025 Convertible Senior Notes (Details) - 2025 Notes	May 31, 2020 USD ($) $ / shares	May 31, 2020 USD ($) $ / shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Mar. 31, 2024 USD ($)
Debt Instrument [Line Items]
Conversion price (in dollars per share) \| $ / shares	$ 37.43	$ 37.43
Convertible Debt
Debt Instrument [Line Items]
Debt principal amount	$ 575,000,000	$ 575,000,000
Interest rate	0.75%	0.75%
Principal			$ 0			$ 0
Repurchased face amount			123,000,000		$ 400,000,000
Repayments of convertible debt			172,700,000		400,700,000
Debt conversion, converted instrument, amount					1,321,000,000
Loss on extinguishment of debt			50,300,000		72,200,000
Debt instrument, fair value					355,300,000
Carrying amount, net					$ 283,100,000
Effective interest rate					4.08%
Equity component of convertible debt					$ 965,700,000
Interest payable			500,000
Deferred debt issuance cost, write-off			1,100,000
Convertible debt, conversion ratio		0.0267187
Convertible Debt \| Certain Holders Conversion
Debt Instrument [Line Items]
Debt conversion, converted instrument, amount			$ 35,400,000	$ 16,600,000
Convertible debt, conversion ratio	0.0285913
Convertible Debt \| Class A common stock
Debt Instrument [Line Items]
Number of shares issued upon debt conversion (in shares) \| shares			500,000	300,000	7,600,000
Debt conversion converted instrument additional shares initial conversion (in shares) \| shares			1.8726

Debt - 2025 Capped Call Transac

Debt - 2025 Capped Call Transactions (Details) - 2025 Notes - Convertible Debt - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	May 31, 2020	Dec. 31, 2023
Debt Instrument [Line Items]
Purchases of capped calls related to convertible senior notes		$ 67.3
Capped Calls \| Long \| Class A common stock
Debt Instrument [Line Items]
Strike price (in dollars per share)	$ 37.43
Capped call, initial cap price (in dollars per share)	$ 57.58

Debt - Schedule of Net Carrying

Debt - Schedule of Net Carrying Amount of Notes (Details) - Convertible Debt - USD ($)	Mar. 31, 2024	Dec. 31, 2023	Dec. 31, 2021
2026 Notes
Debt Instrument [Line Items]
Principal	$ 1,293,750,000	$ 1,293,750,000
Unamortized debt issuance costs	(9,398,000)	(10,388,000)
Carrying amount, net	1,284,352,000	1,283,362,000
2025 Notes
Debt Instrument [Line Items]
Principal	$ 0	$ 0
Carrying amount, net			$ 283,100,000

Debt - Schedule of Interest Com

Debt - Schedule of Interest Components (Details) - Convertible Debt - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
2026 Notes
Debt Instrument [Line Items]
Coupon interest expense	$ 0	$ 0
Amortization of debt issuance costs	990	990
Total	990	990
2025 Notes
Debt Instrument [Line Items]
Coupon interest expense	0	297
Amortization of debt issuance costs	0	173
Total	$ 0	$ 470

Common Stock - Narratives (Deta

Common Stock - Narratives (Details)	Mar. 31, 2024 vote
Class A common stock
Class of Stock [Line Items]
Common stock, number of votes per share	1
Class B common stock
Class of Stock [Line Items]
Common stock, number of votes per share	10

Common Stock - Schedule of Comm

Common Stock - Schedule of Common Stock Reserved for Future Issuance (Details) - shares shares in Thousands	Mar. 31, 2024	Dec. 31, 2023
Class of Stock [Line Items]
Shares of common stock reserved (in shares)	122,065	104,014
Equity Incentive Plan, 2019
Class of Stock [Line Items]
Shares of common stock reserved (in shares)	73,837	56,442
Stock options issued and outstanding
Class of Stock [Line Items]
Shares of common stock reserved (in shares)	10,731	12,523
Outstanding and unsettled RSUs
Class of Stock [Line Items]
Shares of common stock reserved (in shares)	9,967	10,894
Shares available for issuance under the Employee Stock Purchase Plan (ESPP)
Class of Stock [Line Items]
Shares of common stock reserved (in shares)	17,219	13,844
Convertible Debt \| 2026 Notes
Class of Stock [Line Items]
Shares of common stock reserved (in shares)	10,311	10,311

Stock-based Compensation - Narr

Stock-based Compensation - Narrative (Details) $ in Thousands		1 Months Ended		3 Months Ended		12 Months Ended
	May 01, 2023 USD ($) tranche	Apr. 30, 2024 shares	Jan. 31, 2024 shares	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation				$ 72,552	$ 59,109
Stock-based compensation expense				69,723	57,401
Other Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				2,600	6,900
Options unrecognized stock-based compensation expense				$ 151,400
Weighted-average remaining vesting period				4 years 1 month 6 days
Other Performance Awards \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vesting during period (in shares) \| shares			224,250
Other Performance Awards \| Tranche Two \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vesting during period (in shares) \| shares		207,750
Other Performance Awards \| Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period						10 years
Number of shares authorized for issuance (in shares) \| shares						5,575,000
Number of separate tranches \| tranche	9
Stock-based compensation	$ 25,800
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				$ 63,900	$ 44,300
Weighted-average remaining vesting period				2 years 9 months 18 days
Unrecognized stock-based compensation expense				$ 606,300
Shares issuable pursuant to the ESPP \| 2019 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average remaining vesting period				1 month 6 days
Unrecognized stock-based compensation expense				$ 1,000
Executive Officer \| Stock Options With Market Conditions
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period						10 years
Executive Officer \| Other Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period						10 years
Other Key Employees \| Stock Options With Market Conditions
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period						10 years
Other Key Employees \| Other Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period						10 years

Stock-based Compensation - Sche

Stock-based Compensation - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	$ 69,723	$ 57,401
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	2,503	1,683
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	20,177	14,820
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	25,716	27,737
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	$ 21,327	$ 13,161

Net Loss per Share Attributab_3

Net Loss per Share Attributable to Common Stockholders - Schedule of Computation of Basic and Diluted Earnings per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net loss attributable to common stockholders	$ (35,543)	$ (38,082)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	338,583	330,389
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	338,583	330,389
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.10)	$ (0.12)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.10)	$ (0.12)
Class A \| Common stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net loss attributable to common stockholders	$ (31,429)	$ (33,207)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	299,398	288,096
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	299,398	288,096
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.10)	$ (0.12)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.10)	$ (0.12)
Class B \| Common stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net loss attributable to common stockholders	$ (4,114)	$ (4,875)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	39,185	42,293
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	39,185	42,293
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.10)	$ (0.12)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.10)	$ (0.12)

Net Loss per Share Attributab_4

Net Loss per Share Attributable to Common Stockholders - Schedule of Potential Shares of Common Stock Excluded from Computation of Basic and Diluted Net Loss per Share Attributable to Common Stockholders (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares of common stock excluded from computation of diluted net loss per share attributable to common stockholders (in shares)	27,646	36,550
2025 Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares of common stock excluded from computation of diluted net loss per share attributable to common stockholders (in shares)	0	4,233
2026 Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares of common stock excluded from computation of diluted net loss per share attributable to common stockholders (in shares)	6,762	6,762
Shares subject to repurchase
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares of common stock excluded from computation of diluted net loss per share attributable to common stockholders (in shares)	0	615
Unexercised stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares of common stock excluded from computation of diluted net loss per share attributable to common stockholders (in shares)	10,731	14,821
Unvested restricted stock and RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares of common stock excluded from computation of diluted net loss per share attributable to common stockholders (in shares)	9,967	9,874
Shares issuable pursuant to the ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares of common stock excluded from computation of diluted net loss per share attributable to common stockholders (in shares)	186	245

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Provision for Income tax expense	$ 2,269	$ 1,314

Segment and Geographic Inform_3

Segment and Geographic Information - Narratives (Details)	3 Months Ended
Segment and Geographic Information - Narratives (Details)	Mar. 31, 2024 segment
Segment Reporting [Abstract]
Number of operating segments	1

Segment and Geographic Inform_4

Segment and Geographic Information - Schedule of Property and Equipment, Net by Geographic Area (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Property and equipment, net	$ 329,422	$ 322,813
United States
Segment Reporting Information [Line Items]
Property and equipment, net	186,252	191,853
Rest of the world
Segment Reporting Information [Line Items]
Property and equipment, net	$ 143,170	$ 130,960