Fastly (FSLY) 10-Q 2 Nov 23 2023 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares shares in Millions	9 Months Ended
	Sep. 30, 2023	Oct. 27, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-38897
Entity Registrant Name	FASTLY, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-5411834
Entity Address, Address Line One	475 Brannan Street, Suite 300
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94107
City Area Code	844
Local Phone Number	432-7859
Title of 12(b) Security	Class A Common Stock, $0.00002 par value
Trading Symbol	FSLY
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
Entity Common Stock, Shares Outstanding		130.8
Entity Central Index Key	0001517413
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Amendment Flag	false

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 270,300	$ 143,391
Marketable securities, current	158,055	374,581
Accounts receivable, net of allowance for credit losses of $6,340 and $5,029 as of September 30, 2023 and December 31, 2022, respectively	98,622	89,578
Prepaid expenses and other current assets	24,481	28,933
Total current assets	551,458	636,483
Property and equipment, net	171,914	180,378
Operating lease right-of-use assets, net	52,927	68,440
Goodwill	670,356	670,185
Intangible assets, net	67,375	82,900
Marketable securities, non-current	32,280	165,105
Other assets	94,353	92,622
Total assets	1,640,663	1,896,113
Current liabilities:
Accounts payable	5,723	4,786
Accrued expenses	56,595	61,161
Finance lease liabilities, current	19,250	28,954
Operating lease liabilities, current	21,533	23,026
Other current liabilities	40,234	34,394
Total current liabilities	143,335	152,321
Long-term debt	472,823	704,710
Finance lease liabilities, non-current	3,860	15,507
Operating lease liabilities, non-current	47,775	61,341
Other long-term liabilities	4,298	7,076
Total liabilities	672,091	940,955
Commitments and contingencies (Note 10)
Stockholders’ equity:
Common stock	2	2
Additional paid-in capital	1,781,870	1,666,106
Accumulated other comprehensive loss	(1,934)	(9,286)
Accumulated deficit	(811,366)	(701,664)
Total stockholders’ equity	968,572	955,158
Total liabilities and stockholders’ equity	$ 1,640,663	$ 1,896,113

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 6,340	$ 5,029

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenue	$ 127,816,000	$ 108,504,000	$ 368,211,000	$ 313,404,000
Cost of revenue	61,730,000	55,825,000	177,657,000	166,206,000
Gross profit	66,086,000	52,679,000	190,554,000	147,198,000
Operating expenses:
Research and development	39,068,000	38,957,000	113,920,000	118,111,000
Sales and marketing	51,043,000	47,006,000	143,111,000	135,246,000
General and administrative	30,001,000	32,481,000	84,651,000	91,578,000
Impairment expense	4,316,000	0	4,316,000	0
Total operating expenses	124,428,000	118,444,000	345,998,000	344,935,000
Loss from operations	(58,342,000)	(65,765,000)	(155,444,000)	(197,737,000)
Net gain on extinguishment of debt	0	0	36,760,000	54,391,000
Interest income	4,908,000	1,967,000	13,602,000	4,150,000
Interest expense	(862,000)	(1,381,000)	(3,307,000)	(4,533,000)
Other income (expense), net	(16,000)	1,877,000	(1,069,000)	(75,000)
Loss before income tax expense	(54,312,000)	(63,302,000)	(109,458,000)	(143,804,000)
Income tax expense (benefit)	(1,000)	118,000	244,000	317,000
Net loss	$ (54,311,000)	$ (63,420,000)	$ (109,702,000)	$ (144,121,000)
Net loss per share attributable to common stockholders, basic (in US dollar per share)	$ (0.42)	$ (0.52)	$ (0.86)	$ (1.19)
Net loss per share attributable to common stockholders, diluted (in US dollar per share)	$ (0.42)	$ (0.52)	$ (0.86)	$ (1.19)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	129,873	122,339	127,735	121,094
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	129,873	122,339	127,735	121,094

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Other Comprehensive Income [Abstract]
Net loss	$ (54,311)	$ (63,420)	$ (109,702)	$ (144,121)
Other comprehensive income (loss):
Foreign currency translation adjustment	(8)	(22)	550	(192)
Gain (loss) on investments in available-for-sale-securities	1,226	(114)	6,802	(9,859)
Total other comprehensive income (loss)	1,218	(136)	7,352	(10,051)
Comprehensive loss	$ (53,093)	$ (63,556)	$ (102,350)	$ (154,172)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Common Stock Restricted Stock Units	Common Stock Restricted Stock Awards	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021		118,811,000
Beginning balance at Dec. 31, 2021	$ 1,013,953	$ 2			$ 1,527,468	$ (2,627)	$ (510,890)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of vested stock options (in shares)		1,712,000
Exercise of vested stock options	5,324				5,324
Vesting/Issuance of restricted stock units/awards (in shares)			1,918,000	112,000
Shares issued under ESPP (in shares)		292,000
Shares issued under ESPP	2,962				2,962
Stock-based compensation	98,912				98,912
Net loss	(144,121)						(144,121)
Other comprehensive income (loss)	(10,051)					(10,051)
Ending balance (in shares) at Sep. 30, 2022		122,845,000
Ending balance at Sep. 30, 2022	966,979	$ 2			1,634,666	(12,678)	(655,011)
Beginning balance (in shares) at Jun. 30, 2022		121,885,000
Beginning balance at Jun. 30, 2022	993,738	$ 2			1,597,869	(12,542)	(591,591)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of vested stock options (in shares)		88,000
Exercise of vested stock options	555				555
Vesting/Issuance of restricted stock units/awards (in shares)			835,000	37,000
Shares issued under ESPP (in shares)		0
Stock-based compensation	36,242				36,242
Net loss	(63,420)						(63,420)
Other comprehensive income (loss)	(136)					(136)
Ending balance (in shares) at Sep. 30, 2022		122,845,000
Ending balance at Sep. 30, 2022	$ 966,979	$ 2			1,634,666	(12,678)	(655,011)
Beginning balance (in shares) at Dec. 31, 2022	124,300,000	124,336,000
Beginning balance at Dec. 31, 2022	$ 955,158	$ 2			1,666,106	(9,286)	(701,664)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of vested stock options (in shares)	265,000	265,000
Exercise of vested stock options	$ 2,008				2,008
Vesting/Issuance of restricted stock units/awards (in shares)			4,191,000
Issuance of restricted stock units related to bonus (in shares)		1,193,000
Issuance of restricted stock units related to bonus program	16,599				16,599
Shares issued under ESPP (in shares)		697,000
Shares issued under ESPP	4,977				4,977
Stock-based compensation	92,180				92,180
Net loss	(109,702)						(109,702)
Other comprehensive income (loss)	$ 7,352					7,352
Ending balance (in shares) at Sep. 30, 2023	130,700,000	130,682,000
Ending balance at Sep. 30, 2023	$ 968,572	$ 2			1,781,870	(1,934)	(811,366)
Beginning balance (in shares) at Jun. 30, 2023		129,027,000
Beginning balance at Jun. 30, 2023	987,754	$ 2			1,747,959	(3,152)	(757,055)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of vested stock options (in shares)		144,000
Exercise of vested stock options	1,137				1,137
Vesting/Issuance of restricted stock units/awards (in shares)			1,511,000
Shares issued under ESPP (in shares)		0
Stock-based compensation	32,774				32,774
Net loss	(54,311)						(54,311)
Other comprehensive income (loss)	$ 1,218					1,218
Ending balance (in shares) at Sep. 30, 2023	130,700,000	130,682,000
Ending balance at Sep. 30, 2023	$ 968,572	$ 2			$ 1,781,870	$ (1,934)	$ (811,366)

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net loss	$ (109,702,000)	$ (144,121,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation expense	38,015,000	31,248,000
Amortization of intangible assets	15,525,000	16,114,000
Non-cash lease expense	17,227,000	19,655,000
Amortization of debt discount and issuance costs	2,020,000	2,454,000
Amortization of deferred contract costs	11,253,000	6,020,000
Stock-based compensation	100,856,000	114,378,000
Provision for credit losses	1,311,000	1,782,000
Loss on disposals of property and equipment	505,000	854,000
Amortization and accretion of discounts and premiums on investments	344,000	2,622,000
Impairment of operating lease right-of-use assets	588,000	0
Impairment expense	4,316,000	0
Net gain on extinguishment of debt	(36,760,000)	(54,391,000)
Other adjustments	(257,000)	(292,000)
Changes in operating assets and liabilities:
Accounts receivable	(10,355,000)	(10,071,000)
Prepaid expenses and other current assets	4,602,000	(5,787,000)
Other assets	(16,269,000)	(19,904,000)
Accounts payable	1,258,000	(3,457,000)
Accrued expenses	(6,253,000)	4,490,000
Operating lease liabilities	(16,937,000)	(18,443,000)
Other liabilities	6,452,000	(655,000)
Net cash provided by (used in) operating activities	7,739,000	(57,504,000)
Cash flows from investing activities:
Purchases of marketable securities	(73,091,000)	(355,479,000)
Sales of marketable securities	775,000	161,853,000
Maturities of marketable securities	428,125,000	440,737,000
Business acquisitions, net of cash acquired	0	(27,745,000)
Advance payment for purchase of property and equipment	0	(31,274,000)
Purchases of property and equipment	(8,283,000)	(11,446,000)
Proceeds from sale of property and equipment	49,000	366,000
Capitalized internal-use software	(15,390,000)	(13,856,000)
Net cash provided by investing activities	332,185,000	163,156,000
Cash flows from financing activities:
Cash paid for debt extinguishment	(196,934,000)	(177,082,000)
Repayments of finance lease liabilities	(21,243,000)	(18,105,000)
Cash received for restricted stock sold in advance of vesting conditions	0	10,655,000
Cash paid for early sale of restricted shares	0	(10,655,000)
Payment of deferred consideration for business acquisitions	(4,393,000)	0
Proceeds from exercise of vested stock options	2,008,000	5,324,000
Proceeds from employee stock purchase plan	7,009,000	5,726,000
Net cash used in financing activities	(213,553,000)	(184,137,000)
Effects of exchange rate changes on cash, cash equivalents, and restricted cash	538,000	(429,000)
Net increase in cash, cash equivalents, and restricted cash	126,909,000	(78,914,000)
Cash, cash equivalents, and restricted cash at beginning of period	143,541,000	166,961,000
Cash, cash equivalents, and restricted cash at end of period	270,450,000	88,047,000
Supplemental disclosure of cash flow information:
Cash paid for interest	1,286,000	1,969,000
Cash paid for income taxes, net of refunds received	369,000	225,000
Cash paid for finance lease interest	1,103,000	0
Property and equipment additions not yet paid in cash	519,000	8,497,000
Stock-based compensation capitalized to internal-use software	6,912,000	6,034,000
Assets obtained in exchange for operating lease obligations	1,324,000	28,788,000
Assets obtained in exchange for finance lease obligations	0	23,521,000
Net non-cash change in operating lease assets and liabilities associated with modifications and terminations	(978,000)	3,132,000
Purchase consideration associated with business combination, accrued but not paid	0	8,000,000
Costs associated with business combination, accrued but not paid	0	30,000
Deployments of prepaid capital equipment	1,664,000	926,000
Reconciliation of cash, cash equivalents, and restricted cash as shown in the statements of cash flows:
Cash and cash equivalents	270,300,000	87,897,000
Restricted cash, current	150,000	150,000
Total cash, cash equivalents, and restricted cash	$ 270,450,000	$ 88,047,000

Nature of Business

Nature of Business	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	Nature of Business Fastly, Inc. has built an edge cloud platform that can process, serve, and secure its customers' applications as close to their end users as possible. As of September 30, 2023, the Company’s edge network spans across 79 markets around the world. The Company was incorporated in Delaware in 2011 and is headquartered in San Francisco, California. As used herein, “Fastly,” “the Company,” “its” and similar terms include Fastly, Inc. and its subsidiaries, unless the context indicates otherwise.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation and Consolidation The accompanying condensed consolidated financial statements and footnotes have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”), consistent in all material respects with those applied in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022, filed with the Securities and Exchange Commission (“SEC”) on February 27, 2023. The Company’s condensed consolidated financial statements include its accounts and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. The Company’s condensed consolidated financial statements are unaudited but include all adjustments of a normal recurring nature necessary for a fair presentation of its quarterly results. The Company’s condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022. Certain changes to presentation have been made to conform the prior period presentation to the current period reporting. The Company has made certain presentation changes to consolidate the interest paid on finance lease line into other liabilities working capital changes and components of the non-cash lease expense related to operating lease liability changes into operating lease liability working capital changes within operating cash flows in the consolidated statements of cash flows. Such reclassifications did not affect the condensed consolidated balance sheets, total revenues, operating income, net income, or cash flows from operating, investing or financing activities. Use of Estimates The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets, liabilities, revenue, costs and expenses, and related disclosures. Actual results and outcomes could differ significantly from the Company’s estimates, judgments, and assumptions. Significant estimates, judgments, and assumptions used in these financial statements include, but are not limited to, those related to revenue, accounts receivable and related reserves, internal-use software development costs, the incremental borrowing rate related to the Company’s lease liabilities, fair value of assets acquired and liabilities assumed during business combinations, useful lives of acquired intangible assets and property and equipment, fair value of the Company’s long-lived assets as well as reporting unit, income tax reserves, and accounting for stock-based compensation. Estimates are periodically reviewed in light of changes in circumstances, facts, and experience. The effects of material revisions in estimates are reflected in the consolidated financial statements in the period of change and prospectively from the date of the change in estimate. Significant Accounting Policies There have been no material changes to the Company’s significant accounting policies as compared to those described in “Note 2 – Summary of Significant Accounting Policies” of the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022. Recently Adopted and Issued Accounting Pronouncements The Company has not adopted any new accounting pronouncements in the three and nine months ended September 30, 2023. Other recently issued accounting pronouncements are not expected to have a material impact on its condensed consolidated financial statements. Concentrations of Credit Risk Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash, cash equivalents, marketable securities and accounts receivable. The Company’s cash, cash equivalents, and marketable securities primarily consisted of bank deposits, money market funds, investment-grade commercial paper, corporate notes and bonds, U.S. treasury securities, municipal securities, foreign government and supranational securities and asset-backed securities held at major financial institutions that the Company believes to be of high credit standing. The primary focus of its investment strategy is to preserve capital and meet liquidity requirements. The Company’s investment policy limits the amount of credit exposure with any one financial institution or commercial issuer. The Company maintains deposits in federally insured financial institutions in excess of federally insured limits. The Company is exposed to credit risk in the event of default by the financial institutions holding its cash and cash equivalents to the extent recorded in the balance sheets. While the Company has not experienced any losses in such accounts and the Company has historically maintained its cash in multiple financial institutions, the failure of Silicon Valley Bank (“SVB”) in March 2023, at which the Company held cash and cash equivalents in multiple accounts, exposed the Company to limited credit risk prior to the completion by the Federal Deposit Insurance Corporation (“FDIC”) of the resolution of SVB in a manner that fully protected all depositors. Concentrations of credit risk with respect to accounts receivable are primarily limited to certain customers to which the Company makes substantial sales. The Company’s customer base consists of a large number of geographically dispersed customers diversified across several industries. In the three and nine months ended September 30, 2023, one single customer accounted for 12% and 9% of the Company's revenue, respectively. This customer also accounted for 16% of the Company's accounts receivable balance as of September 30, 2023. This customer, along with another affiliated customer, are business units of a single company in the streaming entertainment space and generated an aggregate amount of 14% and 11% of the Company’s revenue for the three and nine months ended September 30, 2023, respectively. The same affiliated customers accounted for an aggregate amount of 20% of the Company’s accounts receivable balance as of September 30, 2023 . In the three and nine months ended September 30, 2022, no single customer accounted for more than 10% of the Company's revenue. The same affiliated customers, as referenced earlier on in the paragraph above, accounted for an aggregated amount of 12% and 11% of the Company's revenue, for the three and nine months ended September 30, 2022, respectively. The same affiliated customers accounted for an aggregate amount of 15% of the Company’s accounts receivable balance as of December 31, 2022 .

Revenue

Revenue	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Revenue by geography is based on the billing address of the customer. Aside from the United States, no other single country accounted for more than 10% of revenue for both the three and nine months ended September 30, 2023 and September 30, 2022. The following table presents the Company’s net revenue by geographic region: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) United States $ 93,422 $ 80,173 $ 268,660 $ 231,838 Asia Pacific 18,935 14,365 52,633 38,954 Europe 10,493 9,536 31,877 28,131 All other 4,966 4,430 15,041 14,481 Total revenue $ 127,816 $ 108,504 $ 368,211 $ 313,404 The majority of the Company’s revenue is derived from enterprise customers. In the first quarter of 2023, the Company updated its methodology (“new methodology”) by which it calculates its customer count metrics, including Total Customer Count, Enterprise Customer Count and associated metrics. Under the prior methodology, enterprise customers is defined as customers with revenue in excess of $100,000 over the trailing 12-month period. The following table presents the Company’s net revenue for enterprise and non-enterprise customers based on the prior methodology: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Enterprise customers $ 116,193 $ 97,265 $ 333,445 $ 279,619 Non-enterprise customers 11,623 11,239 34,766 33,785 Total revenue $ 127,816 $ 108,504 $ 368,211 $ 313,404 Under the new methodology, enterprise customers is defined as customers with annualized current quarter revenue in excess of $100,000. This is calculated by taking the sum of revenue for each customer within the quarter and multiplying it by four. The following table presents the Company's net revenue for enterprise and non-enterprise customers based on the new methodology: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Enterprise customers $ 117,327 $ 98,497 $ 337,359 $ 283,621 Non-enterprise customers 10,489 10,007 30,852 29,783 Total revenue $ 127,816 $ 108,504 $ 368,211 $ 313,404 Contract balances The timing of revenue recognition may differ from the timing of invoicing to customers. The Company has an unconditional right to consideration when it invoices its customers and records a receivable. The Company records a contract asset, or a receivable, when revenue is recognized prior to invoicing. The Company records a contract liability, or deferred revenue, when revenue is recognized subsequent to invoicing. Deferred revenue includes amounts billed to customers for which revenue has not been recognized and consists of the unearned portions of edge cloud platform usage and billings to customers for the Company’s security subscription services. Amounts that have been invoiced for annual subscriptions, but not collected, are recorded in accounts receivable and in unearned revenue or in revenue depending on whether services have been delivered to the customer. The Company’s payment terms and conditions vary by contract type, and generally range from 30 to 90 days. The following table presents the Company’s contract assets and contract liabilities as of September 30, 2023 and as of December 31, 2022: As of September 30, 2023 As of December 31, 2022 (in thousands) Contract assets $ 409 $ 19 Contract liabilities $ 37,459 $ 30,544 The following table presents revenue recognized during the three and nine months ended September 30, 2023 and 2022 from amounts included in the contract liability at the beginning of the period: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Revenue recognized in the period from amounts included in contract liability at the beginning of the period $ 12,279 $ 10,627 $ 27,616 $ 23,231 Remaining performance obligations As of September 30, 2023, the aggregate amount of the transaction price in our contracts allocated to remaining performance obligations that are unsatisfied or partially unsatisfied was $247.6 million. This amount includes future committed revenue for periods within current contracts with customers, as well as deferred revenue arising from consideration invoiced for which the related performance obligations have not been satisfied. The Company has elected to not provide certain information about its remaining performance obligations for service contracts with an original contract duration of one year or less. As of September 30, 2023, the Company expects to recognize approximately 82% of its remaining performance obligations over the next 12 months. The Company’s typical contractual term with its customers is one year, although terms may vary by contract. Costs to obtain a contract As of September 30, 2023 and December 31, 2022, the Company's costs to obtain contracts were as follows: As of September 30, As of December 31, 2023 2022 (in thousands) Deferred contract costs, net $ 60,634 $ 50,523

Investments and Fair Value Meas

Investments and Fair Value Measurements	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Investments and Fair Value Measurements	Investments and Fair Value Measurements The Company's total cash, cash equivalents and marketable securities consisted of the following: As of September 30, As of December 31, 2023 2022 (in thousands) Cash and cash equivalents: Cash $ 29,010 $ 46,516 Money market funds 216,378 96,875 U.S. Treasury securities $ 24,912 $ — Total cash and cash equivalents (1) $ 270,300 $ 143,391 Marketable securities: U.S. Treasury securities $ 73,755 $ 287,988 Corporate notes and bonds 84,300 71,744 Asset-backed securities — 175 Municipal securities — 2,221 Foreign government and supranational securities — 12,453 Total marketable securities, current (2) $ 158,055 $ 374,581 Corporate notes and bonds 31,321 140,949 Asset-backed securities 959 24,156 Total marketable securities, non-current (3) $ 32,280 $ 165,105 Total marketable securities $ 190,335 $ 539,686 Total cash, cash equivalents and marketable securities $ 460,635 $ 683,077 (1) The Company’s cash equivalents include investments with an original maturity date of three months or less. (2) The Company classifies its marketable securities as current, where it intends to hold the securities for less than 12 months. (3) The Company classifies its marketable securities are non-current, where it intends to hold the securities for longer than 12 months. Available-for-Sale Investments The following table summarizes adjusted cost, gross unrealized gains and losses, and fair value related to available-for-sale securities classified as marketable securities on the accompanying condensed consolidated balance sheets as of September 30, 2023 and December 31, 2022: As of September 30, 2023 Amortized Gross Gross Fair (in thousands) U.S. Treasury securities $ 73,753 $ 2 $ — $ 73,755 Corporate notes and bonds 117,470 — (1,849) 115,621 Asset-backed securities 961 — (2) 959 Municipal securities — — — — Total available-for-sale investments $ 192,184 $ 2 $ (1,851) $ 190,335 As of December 31, 2022 Amortized Gross Gross Fair (in thousands) U.S. Treasury securities $ 291,685 $ — $ (3,697) $ 287,988 Corporate notes and bonds 217,187 — (4,494) 212,693 Asset-backed securities 24,617 — (286) 24,331 Municipal securities 2,322 — (101) 2,221 Foreign government and supranational securities 12,522 — (69) 12,453 Total available-for-sale investments $ 548,333 $ — $ (8,647) $ 539,686 There were no material realized gains or losses from sales of marketable securities that were reclassified out of accumulated other comprehensive income (loss) into other income during the three and nine months ended September 30, 2023 and 2022. There were 40 securities in a continuous loss position for 12 months or longer as of September 30, 2023 and 76 securities in a continuous loss position for 12 months or longer as of December 31, 2022. Investments are reviewed periodically to identify possible other-than-temporary impairments. For the three and nine months ended September 30, 2023 and 2022, the Company did not record any impairment charges for its marketable debt securities in its condensed consolidated statements of operations. No impairment loss has been recorded on the securities as the Company does not intend to sell any impaired securities, nor is it more likely than not that the Company would be required to sell impaired securities before recovery of amortized cost basis. Furthermore, the Company has determined that the decline in fair value of the investment is not due to credit related factors. Fair Value of Financial Instruments For certain of the Company's financial instruments, including cash held in banks, accounts receivable, and accounts payable, the carrying amounts approximate fair value due to their short maturities, and are therefore excluded from the fair value tables below. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There is a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows: Level 1—Observable inputs such as quoted prices in active markets for identical assets or liabilities; Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and Level 3—Unobservable inputs that are supported by little or no market activity, which require management judgment or estimation. The Company measures its cash equivalents, marketable securities, and restricted cash at fair value. The Company classifies its cash equivalents, marketable securities and restricted cash within Level 1 or Level 2 because the Company values these investments using quoted market prices or alternative pricing sources and models utilizing market observable inputs. The Company classifies its investments, which are comprised of corporate notes and bonds, U.S. treasury securities, foreign government and supranational securities and asset-backed securities within Level 2 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. Financial assets and liabilities measured and recorded at fair value on a recurring basis consisted of the following types of instruments: As of September 30, 2023 Level 1 Level 2 Level 3 Total (in thousands) Cash equivalents: Money market funds $ 216,378 $ — $ — $ 216,378 U.S. Treasury securities $ — $ 24,912 $ — $ 24,912 Total cash equivalents 216,378 24,912 — 241,290 Marketable securities: Corporate notes and bonds — 115,621 — 115,621 U.S. Treasury securities — 73,755 — 73,755 Municipal securities — — — — Asset-backed securities — 959 — 959 Foreign government and supranational securities — — — — Total marketable securities — 190,335 — 190,335 Restricted cash: Restricted cash, current 150 — — 150 Total restricted cash 150 — — 150 Total financial assets $ 216,528 $ 215,247 $ — $ 431,775 As of December 31, 2022 Level 1 Level 2 Level 3 Total (in thousands) Cash equivalents: Money market funds $ 96,875 $ — $ — $ 96,875 Total cash equivalents 96,875 — — 96,875 Marketable securities: U.S. Treasury securities — 287,988 — 287,988 Corporate notes and bonds — 212,693 — 212,693 Asset-backed securities — 24,331 — 24,331 Municipal securities — 2,221 — 2,221 Foreign government and supranational securities — 12,453 — 12,453 Total marketable securities — 539,686 — 539,686 Restricted cash: Restricted cash, current 150 — — 150 Total restricted cash 150 — — 150 Total financial assets $ 97,025 $ 539,686 $ — $ 636,711 Restricted cash was $0.2 million as of both September 30, 2023 and December 31, 2022. The restricted cash balance consisted of letters of credit related to lease arrangements that were collateralized by the Company’s cash. The amounts as of September 30, 2023 and December 31, 2022, were both classified as current on the Company’s balance sheets. There were no transfers of assets and liabilities measured at fair value between Level 1 and Level 2, or between Level 2 and Level 3, during the three and nine months ended September 30, 2023 and 2022.

Business Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2023
Business Combination and Asset Acquisition [Abstract]
Business Combinations	Business Combinations Glitch, Inc. On May 18, 2022, the Company acquired 100% of the voting equity interest of Glitch, Inc. (“Glitch”), a software company specializing in developer project management tools, for $34.9 million in cash, of which $8.0 million was held back as security for indemnification claims under the terms of the merger agreement (“Holdback”). During the nine months ended September 30, 2023, $4.1 million of the Holdback was distributed to certain shareholders of Glitch and the remaining will be distributed 24 months following the acquisition closing date. The acquisition expands the Company’s brand awareness within the developer community and bolsters the Company’s existing product offerings by making it easier to innovate at a layer in the Company’s software stack. The Company accounted for the transaction as a business combination. The purchase price was allocated based on the estimated fair value of the identified intangible assets of $2.0 million, cash of $1.6 million and other net assets of $0.6 million, and goodwill of $32.5 million. The goodwill was primarily attributed to the value of synergies created with the acquisition of Glitch’s technology offering. Goodwill is not deductible for income tax purposes. Identifiable finite-lived intangible assets were comprised of the following (in thousands): Total Estimated useful life (in years) Developed technology $ 630 4 Customer relationships 760 3 Trade name 610 4 Total intangible assets acquired $ 2,000 For both the three months ended September 30, 2023 and 2022, we did not incur any acquisition-related expenses. For the nine months ended September 30, 2023, we did not incur any acquisition-related expenses. For the nine months ended September 30, 2022 we incurred $2.0 million in acquisition-related expenses. The acquired intangible assets have a total weighted average amortization period of 3.6 years. From the date of the acquisition, the financial results of Glitch have been included in and are not material to the Company’s condensed consolidated financial statements. Pro forma revenue and results of operations have not been presented because the historical results are not material to the condensed consolidated financial statements in any period presented.

Balance Sheet Information

Balance Sheet Information	9 Months Ended
	Sep. 30, 2023
Balance Sheet Related Disclosures [Abstract]
Balance Sheet Information	Balance Sheet Information Property and Equipment, Net Property and equipment, net consisted of the following: As of September 30, As of December 31, 2023 2022 (in thousands) Computer and networking equipment $ 215,330 $ 225,009 Leasehold improvements 8,565 8,374 Furniture and fixtures 2,055 1,792 Office equipment 1,228 1,176 Internal-use software 88,658 66,488 Property and equipment, gross $ 315,836 $ 302,839 Accumulated depreciation and amortization (143,922) (122,461) Property and equipment, net $ 171,914 $ 180,378 During the three months ended September 30, 2023, the Company recognized an impairment charge of $4.3 million, of which $3.0 million related to property and equipment, net and $1.3 million related to advance payments for the purchase of property and equipment. The write-off was primarily related to excess computer and networking equipment including software the Company does not expect to use and therefore abandoned. Impairment charges are included within impairment expense in the condensed consolidated statements of operations. There were no impairments during the three and nine months ended September 30, 2022. Depreciation on property and equipment for the three months ended September 30, 2023 and 2022 was approximately $13.1 million and $10.7 million, respectively. Included in these amounts was amortization expense for capitalized internal-use software costs of approximately $3.8 million and $2.4 million for the three months ended September 30, 2023 and 2022, respectively. Depreciation on property and equipment for the nine months ended September 30, 2023 and 2022 was approximately $38.0 million and $31.2 million, respectively. Included in these amounts was amortization expense for capitalized internal-use software costs of approximately $9.9 million and $6.0 million for the nine months ended September 30, 2023 and 2022, respectively. As of September 30, 2023 and December 31, 2022, the unamortized balance of capitalized internal-use software costs on the Company’s condensed consolidated balance sheets was approximately $57.7 million and $45.5 million, respectively. The Company leases certain networking equipment from various third parties through equipment finance leases. The Company’s networking equipment assets as of September 30, 2023 and December 31, 2022, included a total of $74.7 million and $77.3 million acquired under finance lease agreements, respectively. These leases are capitalized in property and equipment, and the related amortization of assets under finance leases is included in depreciation and amortization expense. The accumulated depreciation of the associated networking equipment assets under finance leases totaled $36.4 million and $28.1 million as of September 30, 2023 and December 31, 2022, respectively. Other Assets Other assets consisted of the following: As of September 30, As of December 31, 2023 2022 (in thousands) Deferred contract costs, net $ 60,634 $ 50,523 Advance payment for purchase of property and equipment 31,516 37,013 Other assets 2,203 5,086 Total other assets $ 94,353 $ 92,622 Accrued Expenses Accrued expenses consisted of the following: As of September 30, As of December 31, 2023 2022 (in thousands) Accrued compensation and related benefits $ 17,123 $ 20,204 Accrued bonus 14,909 15,818 Accrued colocation and bandwidth costs 16,081 10,448 Other tax liabilities 4,811 8,698 Other accrued liabilities 3,671 5,993 Total accrued expenses $ 56,595 $ 61,161 Other Current Liabilities Other current liabilities consisted of the following: As of September 30, As of December 31, 2023 2022 (in thousands) Deferred revenue $ 33,253 $ 28,047 Accrued computer and networking equipment 1,915 1,467 Holdback payable 3,771 4,013 Other current liabilities 1,295 867 Total other current liabilities $ 40,234 $ 34,394 Accumulated Other Comprehensive Income (Loss) For the three and nine months ended September 30, 2023 and 2022, components of accumulated other comprehensive (loss) income, net of taxes, were as follows (in thousands): Foreign Currency Translation Available-for-sale investments Accumulated Other Comprehensive Income (Loss) Balance, June 30, 2023 $ (19) $ (3,133) $ (3,152) Other comprehensive income (8) 1,226 1,218 Balance, September 30, 2023 $ (27) $ (1,907) $ (1,934) Foreign Currency Translation Available-for-sale investments Accumulated Other Comprehensive Income (Loss) Balance, June 30, 2022 $ (555) $ (11,987) $ (12,542) Other comprehensive income (loss) (22) (114) (136) Balance, September 30, 2022 $ (577) $ (12,101) $ (12,678) Foreign Currency Translation Available-for-sale investments Accumulated Other Comprehensive Income (Loss) Balance, December 31, 2022 $ (577) $ (8,709) $ (9,286) Other comprehensive income 550 6,802 7,352 Balance, September 30, 2023 $ (27) $ (1,907) $ (1,934) Foreign Currency Translation Available-for-sale investments Accumulated Other Comprehensive Income (Loss) Balance, December 31, 2021 $ (385) $ (2,242) $ (2,627) Other comprehensive income loss (192) (9,859) (10,051) Balance, September 30, 2022 $ (577) $ (12,101) $ (12,678) There were no material reclassifications out of accumulated other comprehensive loss during the three and nine months ended September 30, 2023 and 2022. Additionally, there was no material tax impact on the amounts presented.

Leases

Leases	9 Months Ended
	Sep. 30, 2023
Leases [Abstract]
Leases	Leases The Company has operating leases for corporate offices and data centers (“colocation” leases), and finance leases for networking equipment. The Company’s operating leases have remaining lease terms ranging from less than 1 year to 7 years, some of which include options to extend the leases. The Company’s finance leases have remaining lease terms ranging from less than 1 year to 2 years. The Company also subleases a portion of its corporate office spaces. The Company’s subleases have remaining lease terms ranging from 1 year to 7 years. The Company’s sublease income was $0.4 million and $0.2 million for the three months ended September 30, 2023, and 2022, respectively. The Company’s sublease income was $1.0 million and $0.7 million for the nine months ended September 30, 2023 and 2022, respectively. The components of lease cost were as follows: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Operating lease costs: Operating lease cost $ 6,466 $ 9,336 $ 20,499 $ 23,578 Variable lease cost 4,024 1,456 11,391 8,723 Total operating lease costs $ 10,490 $ 10,792 $ 31,890 $ 32,301 Finance lease costs: Amortization of assets under finance lease $ 3,544 $ 3,717 $ 10,786 $ 10,901 Interest 297 602 1,103 1,843 Total finance lease costs $ 3,841 $ 4,319 $ 11,889 $ 12,744 The short-term lease costs were not material for three and nine months ended September 30, 2023, and 2022. The Company did not recognize any material impairment on its operating lease right-of-use assets for either of the three and nine months ended September 30, 2023, and 2022. As of September 30, As of December 31, 2023 2022 Weighted Average Remaining Lease Term (in years): Operating leases 3.62 4.09 Finance leases 1.16 1.74 Weighted Average Discount Rate: Operating leases 5.78 % 5.36 % Finance leases 4.69 % 4.73 % Future minimum lease payments under non-cancellable leases as of September 30, 2023 were as follows: Operating Leases Finance Leases (in thousands) Remainder of 2023 $ 8,066 $ 7,831 2024 22,363 14,282 2025 18,623 1,617 2026 16,856 — 2027 9,580 — Thereafter 2,921 — Total future minimum lease payments $ 78,409 $ 23,730 Less: imputed interest (7,592) (620) Total liability $ 70,817 $ 23,110 As of September 30, 2023, the Company has undiscounted commitments of $1.5 million for operating leases that have not yet commenced, and therefore are not included in the right-of-use asset or operating lease liability. These operating leases will commence in the fourth quarter of 2023 with lease terms ranging from 2 to 3 years.
Leases	Leases The Company has operating leases for corporate offices and data centers (“colocation” leases), and finance leases for networking equipment. The Company’s operating leases have remaining lease terms ranging from less than 1 year to 7 years, some of which include options to extend the leases. The Company’s finance leases have remaining lease terms ranging from less than 1 year to 2 years. The Company also subleases a portion of its corporate office spaces. The Company’s subleases have remaining lease terms ranging from 1 year to 7 years. The Company’s sublease income was $0.4 million and $0.2 million for the three months ended September 30, 2023, and 2022, respectively. The Company’s sublease income was $1.0 million and $0.7 million for the nine months ended September 30, 2023 and 2022, respectively. The components of lease cost were as follows: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Operating lease costs: Operating lease cost $ 6,466 $ 9,336 $ 20,499 $ 23,578 Variable lease cost 4,024 1,456 11,391 8,723 Total operating lease costs $ 10,490 $ 10,792 $ 31,890 $ 32,301 Finance lease costs: Amortization of assets under finance lease $ 3,544 $ 3,717 $ 10,786 $ 10,901 Interest 297 602 1,103 1,843 Total finance lease costs $ 3,841 $ 4,319 $ 11,889 $ 12,744 The short-term lease costs were not material for three and nine months ended September 30, 2023, and 2022. The Company did not recognize any material impairment on its operating lease right-of-use assets for either of the three and nine months ended September 30, 2023, and 2022. As of September 30, As of December 31, 2023 2022 Weighted Average Remaining Lease Term (in years): Operating leases 3.62 4.09 Finance leases 1.16 1.74 Weighted Average Discount Rate: Operating leases 5.78 % 5.36 % Finance leases 4.69 % 4.73 % Future minimum lease payments under non-cancellable leases as of September 30, 2023 were as follows: Operating Leases Finance Leases (in thousands) Remainder of 2023 $ 8,066 $ 7,831 2024 22,363 14,282 2025 18,623 1,617 2026 16,856 — 2027 9,580 — Thereafter 2,921 — Total future minimum lease payments $ 78,409 $ 23,730 Less: imputed interest (7,592) (620) Total liability $ 70,817 $ 23,110 As of September 30, 2023, the Company has undiscounted commitments of $1.5 million for operating leases that have not yet commenced, and therefore are not included in the right-of-use asset or operating lease liability. These operating leases will commence in the fourth quarter of 2023 with lease terms ranging from 2 to 3 years.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill The changes in the carrying amount of goodwill for the nine months ended September 30, 2023 are as follows: Nine months ended September 30, 2023 (in thousands) Balance as of December 31, 2022 $ 670,185 Foreign currency translation and other adjustments 171 Balance as of September 30, 2023 $ 670,356 The Company did not record an impairment charge on goodwill during both the three and nine months ended September 30, 2023 or 2022. Intangible Assets, net As of September 30, 2023 and December 31, 2022, the Company’s intangible assets consisted of the following: As of September 30, 2023 As of December 31, 2022 Gross carrying value Accumulated amortization Net carrying value Gross carrying value Accumulated amortization Net carrying value (in thousands) Intangible assets: Customer relationships $ 69,860 $ (26,250) $ 43,610 $ 69,860 $ (19,582) $ 50,278 Developed technology 50,130 (29,910) 20,220 50,130 (22,367) 27,763 Trade names 3,910 (3,504) 406 3,910 (2,564) 1,346 Internet protocol addresses 4,984 (1,845) 3,139 4,984 (1,471) 3,513 Backlog $ — $ — $ — $ 2,200 $ (2,200) $ — Total intangible assets $ 128,884 $ (61,509) $ 67,375 $ 131,084 $ (48,184) $ 82,900 The Company’s customer relationships, developed technology, trade names, backlog and Internet protocol addresses represent intangible assets subject to amortization. Amortization expense was $5.2 million and $5.5 million for the three months ended September 30, 2023 and 2022, respectively. Amortization expense was $15.5 million and $16.1 million for the nine months ended September 30, 2023 and 2022, respectively. The Company did not purchase any intangible assets during both the three and nine months ended September 30, 2023 and 2022. The Company did not record any impairment charges on its intangible assets during both the three and nine months ended September 30, 2023 and 2022. The expected amortization expense of intangible assets subject to amortization as of September 30, 2023 is as follows: As of September 30, 2023 (in thousands) Remainder of 2023 $ 4,900 2024 19,599 2025 16,976 2026 9,193 2027 9,051 Thereafter 7,656 Total $ 67,375

Debt Instruments

Debt Instruments	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Debt Instruments	Debt Instruments Senior Secured Credit Facilities Agreement On February 16, 2021, the Company entered into a Senior Secured Credit Facilities Agreement (“Credit Agreement”) with the lenders from time to time party thereto (the “Lenders”) and Silicon Valley Bank, as a lender and as administrative agent and collateral agent for the Lenders, for an aggregate commitment amount of $100.0 million with a maturity date of February 16, 2024. The Company recorded $0.6 million of debt issuance costs associated with the Credit Agreement in other assets on the Company’s condensed consolidated balance sheet. The Credit Agreement originally bore interest at a rate per annum equal to the sum of LIBOR for the applicable interest period plus 1.75% to 2.00%, depending on the average daily outstanding balance of all loans and letters of credit under the Credit Agreement. On June 28, 2023, the Company entered into the First Amendment to Credit Agreement with the Lenders and First-Citizens Bank & Trust Company (successor by purchase to the Federal Deposit Insurance Corporation as Receiver for Silicon Valley Bridge Bank, N.A. (as successor to Silicon Valley Bank)), as a lender and as administrative agent and collateral agent for the Lenders, which, among other things, amended the interest rate provisions of the Credit Agreement to replace LIBOR with the Secured Overnight Finance Rate (“SOFR”) as the interest rate benchmark. As amended, the revolving loans bear interest, at the Company’s election, at an annual rate based on SOFR or a base rate. Loans based on SOFR bear interest at a rate per annum equal to SOFR, plus an adjustment of 0.10%, plus 1.75% to 2.00%, depending on the average daily outstanding balance of all loans and letters of credit under the Credit Agreement. Loans based on the base rate bear interest at a rate per annum equal to the base rate plus 0.75% to 1.00%, depending on the average daily outstanding balance of all loans and letters of credit under the Credit Agreement. Interest payments on outstanding borrowings are due on the last day of each interest period. The Credit Agreement has a commitment fee on the unused portion of the borrowing commitment, which is payable on the last day of each calendar quarter at a rate per annum of 0.20% to 0.25% depending on the average daily outstanding balance of all loans and letters of credit under the Credit Agreement. In addition, the Company’s Credit Agreement contains a financial covenant that requires the Company to maintain a consolidated adjusted quick ratio of at least 1:25 to 1:00 tested on a quarterly basis as well as a springing revenue growth covenant for certain periods if the Company’s consolidated adjusted quick ratio falls below 1.75 to 1:00 on the last day of any fiscal quarter. The Credit Agreement requires the Company to comply with various affirmative and negative covenants, and contains customary events of default. As of September 30, 2023, the Company was in compliance with all of the Credit Agreement’s covenants. During the three and nine months ended September 30, 2023 and 2022, no amounts were drawn down on the Credit Agreement. As of September 30, 2023 and December 31, 2022, no amounts were outstanding under the Credit Agreement. Convertible Senior Notes On March 5, 2021, the Company issued approximately $948.8 million aggregate principal amount of 0% convertible senior notes due 2026 (the “Notes”), including the exercise in full by the initial purchasers of their option to purchase up to an additional approximately $123.8 million principal amount of the Notes. The Notes were issued in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act. The Notes will mature on March 15, 2026, unless earlier converted, redeemed or repurchased. The net proceeds from the issuance of the Notes were approximately $930.0 million after deducting the initial purchasers’ discounts and transaction costs. The Company may not redeem the Notes prior to March 20, 2024. On or after March 20, 2024, the Company may redeem for cash, all or any portion of the Notes, at the Company’s option, at a redemption price equal to 100% of the principal amount of the Notes to be redeemed, plus accrued and unpaid special interest, if any, to, but excluding, the redemption date, if the last reported sale price of the Company’s Class A common stock (“common stock”) has been at least 130% of the conversion price for the Notes then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period (including the last trading day of such period) ending on, and including, the trading day immediately preceding the date on which the Company provides notice of redemption. No sinking fund is provided for the Notes. Holders of the Notes may convert their notes at their option at any time prior to the close of business on the business day immediately preceding December 15, 2025, only under the following circumstances: (i) during any calendar quarter commencing after the calendar quarter ending on June 30, 2021 (and only during such calendar quarter), if the last reported sale price of the Company’s 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 for the Notes on each applicable trading day; (ii) during the five business day period after any ten consecutive trading day period (the “Measurement Period”) in which the trading price, as defined in the indenture agreement governing the Note filed with the Company’s Current Report on Form 8-K filed with the Securities and Exchange Commission on March 5, 2021, per $1,000 principal amount of 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 common stock and the conversion rate on each such trading day; (iii) if the Company calls such Notes for redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the applicable redemption date, but only with respect to the Notes called (or deemed called) for redemption; or (iv) upon the occurrence of specified corporate events. On or after December 15, 2025 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their notes at any time, regardless of the foregoing circumstances. Upon conversion, the Company may satisfy its conversion obligation by paying or delivering, as the case may be, cash, shares of its common stock or a combination of cash and shares of its common stock, at the Company’s election. The initial conversion rate is 9.7272 shares of common stock per $1,000 principal amount of Notes, equivalent to an initial conversion price of approximately $102.80 per share of common stock. The conversion rate is subject to adjustment as described in the indenture governing the Notes but will not be adjusted for any accrued and unpaid special interest. In addition, following certain corporate events that occur prior to the maturity date of the Notes or if the Company delivers a notice of redemption in respect of the Notes, the Company will, in certain circumstances, increase the conversion rate of the Notes for a holder who elects to convert its Notes, in connection with such a corporate event or convert its Notes called (or deemed called) for redemption during the related redemption period, as the case may be. The indenture includes customary covenants and sets forth certain events of default after which the Notes may be declared immediately due and payable and sets forth certain types of bankruptcy or insolvency events of default involving the Company after which the Notes become automatically due and payable. If the Company undergoes a fundamental change, as defined in the indenture agreement governing the Notes, then subject to certain conditions and except as described in the indenture governing the Notes, holders may require the Company to repurchase for cash all or any portion of their Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Notes to be repurchased, plus accrued and unpaid special interest, if any, to, but excluding, the fundamental change repurchase date. The Company evaluated the terms of its debt and concluded that the instrument does not require separation and that there were no other derivatives that required separation. As such, the Company has combined these features with the host contract and the Company accounts for its convertible debt as a single liability in long-term debt on its condensed consolidated balance sheet. The initial purchasers' discounts and transaction costs of $18.6 million incurred related to the issuance of the Notes were classified as liability and represents the difference between the principal amount of the Notes and the liability component (the “debt discount”), which is amortized to interest expense using the effective interest method over the term of the Notes. As of September 30, 2023, the conversion conditions had not been met and therefore the Notes were not yet convertible. On May 25, 2022, the Company entered into separate, privately negotiated transactions with certain holders of the Notes to repurchase (the “Repurchases”) approximately $235.0 million aggregate principal amount of the Notes for an aggregate cash repurchase price of approximately $176.4 million. The Repurchases closed on May 31, 2022. The Repurchases were accounted for as a debt extinguishment that resulted in a net gain of $54.4 million, which was recorded as non-operating income on the Company’s condensed consolidated statement of operations in the nine months ended September 30, 2022. On May 9, 2023, the Company entered into separate, privately negotiated transactions with certain holders of the Notes to repurchase approximately $236.4 million aggregate principal amount of the Notes for approximately $195.7 million and transaction costs of $1.2 million. The Repurchases closed on May 15, 2023. The Repurchases were accounted for as a debt extinguishment that resulted in a net gain of $36.8 million, which was recorded as non-operating income on the Company’s condensed consolidated statement of operations in the nine months ended September 30, 2023. The following table reflects the carrying values of the debt agreements as of September 30, 2023 and December 31, 2022: As of September 30, 2023 As of December 31, 2022 (in thousands) (in thousands) Convertible Senior notes (effective interest rate of 0.38%) Principal amount $ 477,390 $ 713,753 Less: unamortized debt issuance costs (4,567) (9,043) Less: current portion of long-term debt — — Long-term debt, less current portion $ 472,823 $ 704,710 For the three months ended September 30, 2023 and 2022, interest expense related to the Company’s debt obligations was $0.6 million and $0.8 million, respectively. For the nine months ended September 30, 2023 and 2022, interest expense related to the Company’s debt obligations was $2.2 million and $2.7 million, respectively. As of September 30, 2023 and December 31, 2022, the total estimated fair value of the Notes were $407.0 million and $517.5 million, respectively.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Purchase Commitments As of September 30, 2023, the Company had long-term commitments for cost of revenue related agreements (i.e., bandwidth usage, peering and other managed services with various networks, fixed asset vendors, Internet service providers and other third-party vendors). The Company also has non-cost of revenue long-term commitments for various non-cancelable agreements. Aside from the Company’s finance and operating lease commitments, including its colocation operating commitments, which have been disclosed in Note 7—Leases, the minimum future commitments related to the Company's purchase commitments as of September 30, 2023 were as follows: Cost of Revenue Commitments Operating Expense Commitments Total Purchase Commitments (in thousands) Remainder of 2023 $ 13,749 $ 4,481 $ 18,230 2024 27,789 5,107 32,896 2025 4,974 1,143 6,117 2026 7,622 499 8,121 2027 111 — 111 Thereafter 40 — 40 Total $ 54,285 $ 11,230 $ 65,515 Sales and Use Tax The Company conducts its operations in many tax jurisdictions throughout the United States. In many of these jurisdictions, non-income-based taxes, such as sales and use and telecommunications taxes are assessed on the Company’s operations. The Company is subject to indirect taxes, and may be subject to certain other taxes, in some of these jurisdictions. Historically, the Company has not billed or collected these taxes and, in accordance with GAAP, the Company has recorded a provision for its tax exposure in these jurisdictions when it is both probable that a liability has been incurred and the amount of the exposure can be reasonably estimated. As a result, the Company has recorded a liability of $4.8 million and $7.6 million as of September 30, 2023 and December 31, 2022, respectively. These estimates are based on several key assumptions, including the taxability of the Company’s products, the jurisdictions in which the Company believes it has nexus and the sourcing of revenues to those jurisdictions. In the event these jurisdictions challenge the Company’s assumptions and analysis, its actual exposure could differ materially from its current estimates. Legal Matters From time to time, the Company has been and may be subject to legal proceedings and claims. Such matters are subject to many uncertainties and outcomes are not predictable with assurance. The Company accrues for contingencies when it believes that a loss is probable and that the Company can reasonably estimate the amount of any such loss. The Company is not presently a party to any legal proceedings that, if determined adversely to it, would individually or taken together have a material effect on the Company’s business, results of operations, financial condition, or cash flows. As of September 30, 2023, the Company has not recorded any significant accruals for loss contingencies associated with such legal proceedings, determined that an unfavorable outcome is probable or reasonably possible, or determined that the amount or range of any possible loss is reasonably estimable. Indemnification The Company enters into standard indemnification agreements in the ordinary course of business. Pursuant to these agreements, the Company agrees to indemnify, hold harmless, and reimburse the indemnified party for losses suffered or incurred by the indemnified party, generally the Company’s business partners or customers, in connection with its provision of its services. Generally, these obligations are limited to claims relating to infringement of a patent, copyright, or other intellectual property right, breach of the Company’s security or data protection obligations, or its negligence, willful misconduct, or violation of law. Subject to applicable statutes of limitation, the term of these indemnification agreements is generally for the duration of the agreement. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company carries insurance that covers certain third-party claims relating to the Company’s services and could limit its exposure in that respect. The Company has agreed to indemnify each of its officers and directors during his or her lifetime for certain events or occurrences that happen by reason of the fact that the officer or director is, was, or has agreed to serve as an officer or director of the Company. The Company has director and officer insurance policies that may limit its exposure and may enable it to recover a portion of certain future amounts paid.

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2023
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stockholders' Equity Equity Incentive Plans The Company maintains four equity incentive plans: the 2019 Equity Incentive Plan (the “2019 Plan”), 2011 Equity Incentive Plan (“2011 Plan”), Employee Stock Purchase Plan and the Signal Sciences Corp. 2014 Stock Option and Grant Plan, as amended (the “Signal Plan”). The 2019 Plan became effective in May 2019 and replaced the 2011 Plan. The Company’s 2019 Plan provides for the issuance of incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock units (“RSUs”), restricted stock awards, performance-based stock awards (“PSUs”), and other forms of equity compensation, which are collectively referred to as stock awards to its employees, directors, and consultants. The Signal Plan includes 251,754 registered shares which can be exercised to purchase shares of Fastly’s common stock. As of September 30, 2023 and December 31, 2022, there were 9.7 million and 9.6 million shares of common stock available for issuance under the 2019 Plan, respectively. As of September 30, 2023 and December 31, 2022, 130.7 million and 124.3 million shares of common stock were issued and outstanding, respectively. Stock Options Options granted under the 2011 Plan and 2019 Plan are exercisable for common stock and generally expire within 10 years from the date of grant and generally vest over four years, at the rate of 25% on the first anniversary of the date of grant and ratably on a monthly basis over the remaining 36-month period thereafter based on continued service. Forfeitures are recognized as they occur. The following table summarizes stock option activity during the nine months ended September 30, 2023: Shares Weighted- Weighted- Aggregate (in thousands) (in years) (in thousands) Outstanding at December 31, 2022 2,443 6.01 4.7 $ 7,674 Granted — — Exercised (265) 7.59 Cancelled/forfeited (44) 8.35 Outstanding at September 30, 2023 2,134 5.77 4.0 $ 28,657 Vested and exercisable at September 30, 2023 2,129 5.75 3.9 $ 28,627 During the three months ended September 30, 2023 and 2022, the Company recorded stock-based compensation expense from stock options of approximately $0.2 million and $1.9 million, respectively. During the nine months ended September 30, 2023 and 2022, the Company recorded stock-based compensation expense from stock options of approximately $1.3 million and $5.1 million, respectively. Restricted Stock Units (“RSUs”) The Company began granting RSUs under the 2019 Plan during the fiscal year ended December 31, 2019. The fair value of RSUs is based on the grant date fair value and is expensed on a straight-line basis over the applicable vesting period. RSUs granted to new hires typically vest over three three The following table summarizes RSU activity during the nine months ended September 30, 2023: Number of Shares Weighted-Average (in thousands) Unvested RSUs as of December 31, 2022 11,990 $ 20.10 Granted 6,897 15.74 Vested (5,306) 19.01 Cancelled/forfeited (1,280) 22.61 Unvested RSUs as of September 30, 2023 12,301 $ 17.86 During the three months ended September 30, 2023 and 2022, the Company recognized stock-based compensation expense related to RSUs of $28.7 million and $27.8 million, respectively. During the nine months ended September 30, 2023 and 2022, the Company recorded stock-based compensation expense related to RSUs of approximately $79.7 million and $72.9 million, respectively. Stock Subject to Revest (“Revest Shares”) In conjunction with a prior acquisition in fiscal 2020, a restriction was placed on 896,499 shares belonging to the three co-founders which are subject to revesting on a quarterly basis over a 2-year period. On January 24, 2022, the Company entered into an agreement with certain holders of restricted stock, who had sold their awards in advance of their vesting conditions, in order to return the proceeds associated with the remaining 224,124 unvested shares as of December 31, 2021. These stockholders are eligible to continue vesting under the original agreements as long as they have continued service as either an employee or consultant. On January 31, 2022, the Company received $10.7 million from these stockholders related to the settlement of the matter, which the Company classified as unrestricted cash on its condensed consolidated balance sheets. This amount was similarly returned to the holders in accordance with the vesting under the original agreements. Correspondingly, the Company reclassified the award from equity to liability as the award will now be settled for the fixed monetary amount received, rather than a release of the restrictions on shares. The modification did not result in any incremental expense to be recognized. In February 2022, one of the stockholders had a change in employment status and the Company accelerated the remaining stock-based compensation associated with his awards on his last day of service as an employee as his services under the modified arrangement were not substantive. For the three months ended September 30, 2022, the Company did not recognize any stock-based compensation expense associated with the modification of these awards. For the nine months ended September 30, 2022, the Company recognized stock-based compensation expense of $5.6 million associated with the modification of these awards. For the three and nine months ended September 30, 2022, the Company recognized in total stock-based compensation expense related to revest shares of $7.3 million and $27.6 million, respectively. The Company did not recognize any stock-based compensation expense related to revest shares for the three and nine months ended September 30, 2023 as those awards were fully vested as of December 31, 2022. Performance-Based Restricted Stock Units (“PSUs”) Performance stock awards for executive officers (“Executive PSUs”) In February 2022, pursuant to the Company’s 2019 Equity Incentive Plan, the Company granted certain employees shares of PSUs, which are to vest based on the level of achievement of certain Company-wide targets related to the Company’s operating plan for the fiscal year 2022. The Company has accounted for these awards as equity-based awards and will recognize stock-based compensation expense over the employees' requisite service period based on the expected attainment of the Company-wide targets as of the end of each reporting period. On March 29, 2023, May 4, 2023, and May 30, 2023, pursuant to the Company’s 2019 Equity Incentive Plan, the Company granted certain employees shares of PSUs, which are to vest based on the level of achievement of certain Company-wide targets related to the Company’s operating plan for the fiscal year 2023. The Company has accounted for these awards as equity-based awards and will recognize stock-based compensation expense over the employees' requisite service period based on the expected attainment of the Company-wide targets as of the end of each reporting period. Number of Shares Weighted-Average Grant Date Fair Value Per Share (in thousands) Nonvested PSUs as of December 31, 2022 267 $ 28.16 Granted 762 15.88 Vested (78) 28.16 Cancelled/forfeited (122) 28.16 Nonvested PSUs as of September 30, 2023 829 $ 16.87 For the three months ended September 30, 2023 and 2022, the Company recognized $1.5 million and $0.1 million of stock-based compensation expense associated with these awards, respectively. For the nine months ended September 30, 2023 and 2022, the Company recognized $3.2 million and $1.1 million of stock-based compensation expense associated with these awards, respectively. Company-wide Bonus Program (“Bonus Program”) On February 11, 2022, the Compensation Committee approved a company-wide bonus program, including performance targets, to most of the Company’s employees on active payroll in fiscal year 2022. Shares awarded under the program were paid out in February 2023 in fully vested RSUs and based on the final attainment of Company-wide performance targets which were tied to its operating plan for fiscal year 2022. The Company recognized stock-based compensation expense over the employees requisite service period, based on the final attainment of the Company-wide targets. In February 2023, the Company paid out the bonus liability associated with the 2022 in 1.2 million of restricted stock units, and correspondingly recorded a charge to additional paid-in-capital of $16.6 million. On March 29, 2023, the Compensation Committee approved a company-wide bonus program, including performance targets, for the current fiscal year to most of the Company’s employees on active payroll in fiscal year 2023. Shares awarded under the program will be in fully vested RSUs and will be based on the final attainment of Company-wide performance targets which are tied to its operating plan for fiscal year 2023. The payout of the 2023 Company-wide bonus program will vary linearly between 50%, 100% and 150% based on the achievement of these targets. Employees are required to be employed through the payout date to earn the awards. The Company has accounted for these awards as liability-based awards, since the monetary value of the obligation associated with the award is based predominantly on a fixed monetary amount known at inception, and it has an unconditional obligation that it must or may settle by issuing a variable number of its equity shares. The Company is recognizing the stock-based compensation expense over the employees requisite service period, based on the expected attainment of the Company-wide targets as of the end of each reporting period. During the three months ended September 30, 2023 and 2022, the Company recognized $6.6 million and $3.9 million, respectively, of stock-based compensation expense associated with the Bonus Programs, respectively. During the nine months ended September 30, 2023 and 2022, the Company recognized $15.6 million and $10.9 million, respectively, of stock-based compensation expense associated with the Bonus Programs. Market-Based Performance Stock Awards (“MPSUs”) In September 2022 and January 2023, pursuant to the Company’s 2019 Equity Incentive Plan, the Company granted certain employees shares of MPSUs, which are to vest upon the satisfaction of the Company’s achievement of specified Fastly common stock price targets during the applicable performance period. In addition, the awards are subject to each recipient’s continuous service through each applicable vest dates. Number of Shares Weighted-Average Grant Date Fair Value Per Share (in thousands) Nonvested MPSUs as of December 31, 2022 2,174 $ 6.80 Granted 87 7.25 Vested — — Cancelled/forfeited (100) 6.88 Nonvested MPSUs as of September 30, 2023 2,161 $ 6.81 Stock-based compensation expense relating to the MPSUs are recognized using the accelerated attribution method over the derived service period. During the three months ended September 30, 2023 and 2022, the Company recognized $1.5 million and $0.4 million stock-based compensation expense associated with these awards, respectively. During the nine months ended September 30, 2023 and 2022, the Company recognized $4.9 million and $0.4 million stock-based compensation expense associated with these awards, respectively. Employee Stock Purchase Program (“ESPP”) The ESPP allows eligible employees to purchase shares of the Company’s common stock through payroll deductions of up to 15% of their eligible compensation. The ESPP provides for six-month offering periods, commencing in May and November of each year. At the end of each offering period employees are able to purchase shares at 85% of the lower of the fair market value of the Company’s common stock on the first trading day of the offering period or on the date of purchase. During the three months ended September 30, 2023 and 2022 the Company recognized $0.8 million and $0.5 million in stock-based compensation expense related to the ESPP, respectively. During the nine months ended September 30, 2023 and 2022, the Company recognized $3.1 million and $2.3 million in stock-based compensation expense related to the ESPP, respectively. During the nine months ended September 30, 2023, 0.7 million shares of the Company’s common stock was purchased under the offering period that commenced on November 21, 2022. During the nine months ended September 30, 2022, 0.3 million shares of the Company’s common stock was purchased under the offering period that commenced on November 21, 2021. No shares of the Company’s common stock were purchased for either the three months ended September 30, 2023 or 2022. Equity Awards Modification In September 2023, as part of one employee's separation and transition plan, the Company modified this employee's outstanding equity awards in an amount that would have vested if this individual had remained an employee for an additional period of time. As a result of the modification, the Company recognized stock-based compensation expense of $0.4 million for the three and nine months ended September 30, 2023. During the three and nine months ended September 30, 2022, we modified the terms of awards to certain employees upon their change in employment status. As a result, we recorded incremental stock-based compensation expense in relation to these modifications of $3.0 million and $3.1 million in the three and nine months ended September 30, 2022, respectively. Stock-Based Compensation Expense The following table summarizes the components of total stock-based compensation expense included in the accompanying condensed consolidated statements of operations: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Cost of revenue $ 2,860 $ 2,978 $ 8,378 $ 9,112 Research and development 12,122 14,488 35,808 46,966 Sales and marketing 9,061 10,920 25,643 31,198 General and administrative 11,670 10,992 31,027 27,102 Total stock-based compensation expense $ 35,713 $ 39,378 $ 100,856 $ 114,378 For the three months ended September 30, 2023 and 2022, the Company capitalized $3.7 million and $2.5 million of stock-based compensation expense, respectively. For the nine months ended September 30, 2023 and 2022, the Company capitalized $6.9 million and $6.0 million of stock-based compensation expense, respectively. For the three and nine months ended September 30, 2023, the Company recognized $6.6 million and $15.6 million of stock-based compensation expense associated with liability classified awards related to the company-wide Bonus Program, respectively. For the three and nine months ended September 30, 2022, the Company recognized $5.6 million and $21.5 million of stock-based compensation expense associated with liability classified awards related to the company-wide Bonus Program and certain of the Company’s Revest Shares that were modified, respectively.

Net Loss Per Share Attributable

Net Loss Per Share Attributable to Common Stockholders	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Net Loss Per Share Attributable to Common Stockholders	Net Loss Per Share Attributable to Common Stockholders Basic net loss per share is computed by dividing net loss by basic weighted-average shares outstanding during the period. Diluted net loss per share is computed by dividing net loss by diluted weighted-average shares outstanding, including potentially dilutive securities. The following table presents the computation of basic and diluted net loss per share of common stock: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands, except per share amounts) Net loss attributable to common stockholders $ (54,311) $ (63,420) $ (109,702) $ (144,121) Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted 129,873 122,339 127,735 121,094 Net loss per share attributable to common stockholders, basic and diluted $ (0.42) $ (0.52) $ (0.86) $ (1.19) The following securities were excluded from the computation of diluted net loss per share of common stock for the periods presented as their effect would have been antidilutive: Number of Shares As of September 30, 2023 2022 (in thousands) Stock options 2,135 2,514 RSUs 12,301 12,981 PSUs 829 267 MPSUs 2,161 2,174 Shares issuable pursuant to the ESPP 345 194 Convertible senior notes (if-converted) 4,644 7,338 Total 22,415 25,468 The dilution table above excludes RSUs to be awarded under the Company’s 2023 Bonus Program, which is expected to have an impact on its outstanding awards in the first quarter of 2024. Refer to Note 11 — Stockholders' Equity for further details on the Company’s 2023 Bonus Program.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s provision for income taxes for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items, if any, that arise during the period. Each quarter, the Company updates its estimate of the annual effective tax rate, and if the estimated annual effective tax rate changes, the Company makes a cumulative adjustment in such period. The Company continues to maintain a full valuation allowance on the Company’s U.S. Federal and state net deferred tax assets. The tax expense for the three and nine months ended September 30, 2023 and 2022 was primarily due to foreign tax expense. In the three months ended September 30, 2023 and 2022, the Company recorded income tax expense (benefit) of less than $(0.1) million and $0.1 million, respectively. In the nine months ended September 30, 2023 and 2022, the Company recorded income tax expense of $0.2 million and $0.3 million, respectively.

Information About Revenue and G

Information About Revenue and Geographic Areas	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Information About Revenue and Geographic Areas	Information About Revenue and Geographic Areas Revenue Revenue by geography is based on the billing address of the customer. Refer to Note 3—Revenue for more information on net revenue by geographic area. Long-Lived Assets The Company’s property and equipment and operating lease right-of-use assets, each net, by geographic area were as follows: As of September 30, As of December 31, 2023 2022 (in thousands) United States $ 161,465 $ 175,794 All other countries 63,376 73,024 Total long-lived assets $ 224,841 $ 248,818

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ (54,311)	$ (63,420)	$ (109,702)	$ (144,121)

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended	9 Months Ended
	Sep. 30, 2023 shares	Sep. 30, 2023 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
Brett Shirk [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		During the Company’s last fiscal quarter, the Company’s directors and officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted or terminated the contracts, instructions or written plans for the purchase or sale of the Company’s securities set forth in the table below. Type of Trading Arrangement Name and Position Action Adoption/ Termination Date Rule 10b5-1* Non- Rule 10b5-1** Total Shares of Class A Common Stock to be Sold Total Shares of Class A Common Stock to be Purchased Expiration Date Brett Shirk, Chief Revenue Officer (1) Adoption 08/21/2023 X — 128,000 — 12/31/2024 * Contract, instruction or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act. ** “Non-Rule 10b5-1 trading arrangement” as defined in Item 408(c) of Regulation S-K under the Exchange Act. (1) Brett Shirk, Chief Revenue Officer, entered into a Rule 10b5-1 Plan on August 21, 2023. Mr. Shirk’s plan provides for the potential sale of up to 128,000 shares of the Company’s Class A Common Stock; provided, however, because certain of Mr. Shirk’s planned sale amounts are equal to a designated percentage of the net number of shares resulting from RSUs vesting, of which a portion will be surrendered to the Company or sold to cover withholding taxes, depending on how many shares are withheld in these instances, the maximum number of shares to be sold may be less. The plan expires on December 31, 2024, or upon the earlier completion of all authorized transactions under the plan.
Name	Brett Shirk
Title	Chief Revenue Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	08/21/2023
Arrangement Duration	498 days
Aggregate Available	128,000	128,000

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation The accompanying condensed consolidated financial statements and footnotes have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”), consistent in all material respects with those applied in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022, filed with the Securities and Exchange Commission (“SEC”) on February 27, 2023. The Company’s condensed consolidated financial statements include its accounts and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. The Company’s condensed consolidated financial statements are unaudited but include all adjustments of a normal recurring nature necessary for a fair presentation of its quarterly results. The Company’s condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.
Reclassification	Certain changes to presentation have been made to conform the prior period presentation to the current period reporting. The Company has made certain presentation changes to consolidate the interest paid on finance lease line into other liabilities working capital changes and components of the non-cash lease expense related to operating lease liability changes into operating lease liability working capital changes within operating cash flows in the consolidated statements of cash flows. Such reclassifications did not affect the condensed consolidated balance sheets, total revenues, operating income, net income, or cash flows from operating, investing or financing activities.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets, liabilities, revenue, costs and expenses, and related disclosures. Actual results and outcomes could differ significantly from the Company’s estimates, judgments, and assumptions. Significant estimates, judgments, and assumptions used in these financial statements include, but are not limited to, those related to revenue, accounts receivable and related reserves, internal-use software development costs, the incremental borrowing rate related to the Company’s lease liabilities, fair value of assets acquired and liabilities assumed during business combinations, useful lives of acquired intangible assets and property and equipment, fair value of the Company’s long-lived assets as well as reporting unit, income tax reserves, and accounting for stock-based compensation. Estimates are periodically reviewed in light of changes in circumstances, facts, and experience. The effects of material revisions in estimates are reflected in the consolidated financial statements in the period of change and prospectively from the date of the change in estimate.
Recently Adopted and Issued Accounting Pronouncements	Recently Adopted and Issued Accounting Pronouncements The Company has not adopted any new accounting pronouncements in the three and nine months ended September 30, 2023. Other recently issued accounting pronouncements are not expected to have a material impact on its condensed consolidated financial statements.
Concentrations of Credit Risk	Concentrations of Credit Risk Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash, cash equivalents, marketable securities and accounts receivable. The Company’s cash, cash equivalents, and marketable securities primarily consisted of bank deposits, money market funds, investment-grade commercial paper, corporate notes and bonds, U.S. treasury securities, municipal securities, foreign government and supranational securities and asset-backed securities held at major financial institutions that the Company believes to be of high credit standing. The primary focus of its investment strategy is to preserve capital and meet liquidity requirements. The Company’s investment policy limits the amount of credit exposure with any one financial institution or commercial issuer. The Company maintains deposits in federally insured financial institutions in excess of federally insured limits. The Company is exposed to credit risk in the event of default by the financial institutions holding its cash and cash equivalents to the extent recorded in the balance sheets. While the Company has not experienced any losses in such accounts and the Company has historically maintained its cash in multiple financial institutions, the failure of Silicon Valley Bank (“SVB”) in March 2023, at which the Company held cash and cash equivalents in multiple accounts, exposed the Company to limited credit risk prior to the completion by the Federal Deposit Insurance Corporation (“FDIC”) of the resolution of SVB in a manner that fully protected all depositors.
Revenue	Revenue by geography is based on the billing address of the customer.
Fair Value of Financial Instruments	Fair Value of Financial Instruments For certain of the Company's financial instruments, including cash held in banks, accounts receivable, and accounts payable, the carrying amounts approximate fair value due to their short maturities, and are therefore excluded from the fair value tables below. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There is a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows: Level 1—Observable inputs such as quoted prices in active markets for identical assets or liabilities; Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and Level 3—Unobservable inputs that are supported by little or no market activity, which require management judgment or estimation. The Company measures its cash equivalents, marketable securities, and restricted cash at fair value. The Company classifies its cash equivalents, marketable securities and restricted cash within Level 1 or Level 2 because the Company values these investments using quoted market prices or alternative pricing sources and models utilizing market observable inputs.

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Net Revenue by Geographic Region	The following table presents the Company’s net revenue by geographic region: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) United States $ 93,422 $ 80,173 $ 268,660 $ 231,838 Asia Pacific 18,935 14,365 52,633 38,954 Europe 10,493 9,536 31,877 28,131 All other 4,966 4,430 15,041 14,481 Total revenue $ 127,816 $ 108,504 $ 368,211 $ 313,404
Schedule of Revenue by Customer Type	The following table presents the Company’s net revenue for enterprise and non-enterprise customers based on the prior methodology: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Enterprise customers $ 116,193 $ 97,265 $ 333,445 $ 279,619 Non-enterprise customers 11,623 11,239 34,766 33,785 Total revenue $ 127,816 $ 108,504 $ 368,211 $ 313,404 Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Enterprise customers $ 117,327 $ 98,497 $ 337,359 $ 283,621 Non-enterprise customers 10,489 10,007 30,852 29,783 Total revenue $ 127,816 $ 108,504 $ 368,211 $ 313,404
Schedule of Contract Assets and Contract Liabilities	The following table presents the Company’s contract assets and contract liabilities as of September 30, 2023 and as of December 31, 2022: As of September 30, 2023 As of December 31, 2022 (in thousands) Contract assets $ 409 $ 19 Contract liabilities $ 37,459 $ 30,544 The following table presents revenue recognized during the three and nine months ended September 30, 2023 and 2022 from amounts included in the contract liability at the beginning of the period: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Revenue recognized in the period from amounts included in contract liability at the beginning of the period $ 12,279 $ 10,627 $ 27,616 $ 23,231
Schedule of Costs to Obtain Contracts	As of September 30, 2023 and December 31, 2022, the Company's costs to obtain contracts were as follows: As of September 30, As of December 31, 2023 2022 (in thousands) Deferred contract costs, net $ 60,634 $ 50,523

Investments and Fair Value Me_2

Investments and Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of Cash, Cash Equivalents, and Marketable Securities	The Company's total cash, cash equivalents and marketable securities consisted of the following: As of September 30, As of December 31, 2023 2022 (in thousands) Cash and cash equivalents: Cash $ 29,010 $ 46,516 Money market funds 216,378 96,875 U.S. Treasury securities $ 24,912 $ — Total cash and cash equivalents (1) $ 270,300 $ 143,391 Marketable securities: U.S. Treasury securities $ 73,755 $ 287,988 Corporate notes and bonds 84,300 71,744 Asset-backed securities — 175 Municipal securities — 2,221 Foreign government and supranational securities — 12,453 Total marketable securities, current (2) $ 158,055 $ 374,581 Corporate notes and bonds 31,321 140,949 Asset-backed securities 959 24,156 Total marketable securities, non-current (3) $ 32,280 $ 165,105 Total marketable securities $ 190,335 $ 539,686 Total cash, cash equivalents and marketable securities $ 460,635 $ 683,077 (1) The Company’s cash equivalents include investments with an original maturity date of three months or less. (2) The Company classifies its marketable securities as current, where it intends to hold the securities for less than 12 months. (3) The Company classifies its marketable securities are non-current, where it intends to hold the securities for longer than 12 months.
Schedule of Available-For-Sale Investments	The following table summarizes adjusted cost, gross unrealized gains and losses, and fair value related to available-for-sale securities classified as marketable securities on the accompanying condensed consolidated balance sheets as of September 30, 2023 and December 31, 2022: As of September 30, 2023 Amortized Gross Gross Fair (in thousands) U.S. Treasury securities $ 73,753 $ 2 $ — $ 73,755 Corporate notes and bonds 117,470 — (1,849) 115,621 Asset-backed securities 961 — (2) 959 Municipal securities — — — — Total available-for-sale investments $ 192,184 $ 2 $ (1,851) $ 190,335 As of December 31, 2022 Amortized Gross Gross Fair (in thousands) U.S. Treasury securities $ 291,685 $ — $ (3,697) $ 287,988 Corporate notes and bonds 217,187 — (4,494) 212,693 Asset-backed securities 24,617 — (286) 24,331 Municipal securities 2,322 — (101) 2,221 Foreign government and supranational securities 12,522 — (69) 12,453 Total available-for-sale investments $ 548,333 $ — $ (8,647) $ 539,686
Schedule of Financial Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis	Financial assets and liabilities measured and recorded at fair value on a recurring basis consisted of the following types of instruments: As of September 30, 2023 Level 1 Level 2 Level 3 Total (in thousands) Cash equivalents: Money market funds $ 216,378 $ — $ — $ 216,378 U.S. Treasury securities $ — $ 24,912 $ — $ 24,912 Total cash equivalents 216,378 24,912 — 241,290 Marketable securities: Corporate notes and bonds — 115,621 — 115,621 U.S. Treasury securities — 73,755 — 73,755 Municipal securities — — — — Asset-backed securities — 959 — 959 Foreign government and supranational securities — — — — Total marketable securities — 190,335 — 190,335 Restricted cash: Restricted cash, current 150 — — 150 Total restricted cash 150 — — 150 Total financial assets $ 216,528 $ 215,247 $ — $ 431,775 As of December 31, 2022 Level 1 Level 2 Level 3 Total (in thousands) Cash equivalents: Money market funds $ 96,875 $ — $ — $ 96,875 Total cash equivalents 96,875 — — 96,875 Marketable securities: U.S. Treasury securities — 287,988 — 287,988 Corporate notes and bonds — 212,693 — 212,693 Asset-backed securities — 24,331 — 24,331 Municipal securities — 2,221 — 2,221 Foreign government and supranational securities — 12,453 — 12,453 Total marketable securities — 539,686 — 539,686 Restricted cash: Restricted cash, current 150 — — 150 Total restricted cash 150 — — 150 Total financial assets $ 97,025 $ 539,686 $ — $ 636,711

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2023
Business Combination and Asset Acquisition [Abstract]
Schedule of Identifiable Finite-Lived Intangible Assets	Identifiable finite-lived intangible assets were comprised of the following (in thousands): Total Estimated useful life (in years) Developed technology $ 630 4 Customer relationships 760 3 Trade name 610 4 Total intangible assets acquired $ 2,000

Balance Sheet Information (Tabl

Balance Sheet Information (Tables)	9 Months Ended
	Sep. 30, 2023
Balance Sheet Related Disclosures [Abstract]
Schedule of Property and Equipment, Net	Property and equipment, net consisted of the following: As of September 30, As of December 31, 2023 2022 (in thousands) Computer and networking equipment $ 215,330 $ 225,009 Leasehold improvements 8,565 8,374 Furniture and fixtures 2,055 1,792 Office equipment 1,228 1,176 Internal-use software 88,658 66,488 Property and equipment, gross $ 315,836 $ 302,839 Accumulated depreciation and amortization (143,922) (122,461) Property and equipment, net $ 171,914 $ 180,378
Schedule of Other Assets	Other assets consisted of the following: As of September 30, As of December 31, 2023 2022 (in thousands) Deferred contract costs, net $ 60,634 $ 50,523 Advance payment for purchase of property and equipment 31,516 37,013 Other assets 2,203 5,086 Total other assets $ 94,353 $ 92,622
Schedule of Accrued Expenses	Accrued expenses consisted of the following: As of September 30, As of December 31, 2023 2022 (in thousands) Accrued compensation and related benefits $ 17,123 $ 20,204 Accrued bonus 14,909 15,818 Accrued colocation and bandwidth costs 16,081 10,448 Other tax liabilities 4,811 8,698 Other accrued liabilities 3,671 5,993 Total accrued expenses $ 56,595 $ 61,161
Schedule of Other Current Liabilities	Other current liabilities consisted of the following: As of September 30, As of December 31, 2023 2022 (in thousands) Deferred revenue $ 33,253 $ 28,047 Accrued computer and networking equipment 1,915 1,467 Holdback payable 3,771 4,013 Other current liabilities 1,295 867 Total other current liabilities $ 40,234 $ 34,394
Schedule of Accumulated Other Comprehensive Income (Loss)	For the three and nine months ended September 30, 2023 and 2022, components of accumulated other comprehensive (loss) income, net of taxes, were as follows (in thousands): Foreign Currency Translation Available-for-sale investments Accumulated Other Comprehensive Income (Loss) Balance, June 30, 2023 $ (19) $ (3,133) $ (3,152) Other comprehensive income (8) 1,226 1,218 Balance, September 30, 2023 $ (27) $ (1,907) $ (1,934) Foreign Currency Translation Available-for-sale investments Accumulated Other Comprehensive Income (Loss) Balance, June 30, 2022 $ (555) $ (11,987) $ (12,542) Other comprehensive income (loss) (22) (114) (136) Balance, September 30, 2022 $ (577) $ (12,101) $ (12,678) Foreign Currency Translation Available-for-sale investments Accumulated Other Comprehensive Income (Loss) Balance, December 31, 2022 $ (577) $ (8,709) $ (9,286) Other comprehensive income 550 6,802 7,352 Balance, September 30, 2023 $ (27) $ (1,907) $ (1,934) Foreign Currency Translation Available-for-sale investments Accumulated Other Comprehensive Income (Loss) Balance, December 31, 2021 $ (385) $ (2,242) $ (2,627) Other comprehensive income loss (192) (9,859) (10,051) Balance, September 30, 2022 $ (577) $ (12,101) $ (12,678)

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2023
Leases [Abstract]
Schedule of Lease Costs & Other Information	The components of lease cost were as follows: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Operating lease costs: Operating lease cost $ 6,466 $ 9,336 $ 20,499 $ 23,578 Variable lease cost 4,024 1,456 11,391 8,723 Total operating lease costs $ 10,490 $ 10,792 $ 31,890 $ 32,301 Finance lease costs: Amortization of assets under finance lease $ 3,544 $ 3,717 $ 10,786 $ 10,901 Interest 297 602 1,103 1,843 Total finance lease costs $ 3,841 $ 4,319 $ 11,889 $ 12,744 As of September 30, As of December 31, 2023 2022 Weighted Average Remaining Lease Term (in years): Operating leases 3.62 4.09 Finance leases 1.16 1.74 Weighted Average Discount Rate: Operating leases 5.78 % 5.36 % Finance leases 4.69 % 4.73 %
Schedule of Operating Lease Maturity	Future minimum lease payments under non-cancellable leases as of September 30, 2023 were as follows: Operating Leases Finance Leases (in thousands) Remainder of 2023 $ 8,066 $ 7,831 2024 22,363 14,282 2025 18,623 1,617 2026 16,856 — 2027 9,580 — Thereafter 2,921 — Total future minimum lease payments $ 78,409 $ 23,730 Less: imputed interest (7,592) (620) Total liability $ 70,817 $ 23,110
Schedule of Finance Lease Maturity	Future minimum lease payments under non-cancellable leases as of September 30, 2023 were as follows: Operating Leases Finance Leases (in thousands) Remainder of 2023 $ 8,066 $ 7,831 2024 22,363 14,282 2025 18,623 1,617 2026 16,856 — 2027 9,580 — Thereafter 2,921 — Total future minimum lease payments $ 78,409 $ 23,730 Less: imputed interest (7,592) (620) Total liability $ 70,817 $ 23,110

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Changes in the Carrying Amount of Goodwill	The changes in the carrying amount of goodwill for the nine months ended September 30, 2023 are as follows: Nine months ended September 30, 2023 (in thousands) Balance as of December 31, 2022 $ 670,185 Foreign currency translation and other adjustments 171 Balance as of September 30, 2023 $ 670,356
Schedule of Intangible Assets, Net	As of September 30, 2023 and December 31, 2022, the Company’s intangible assets consisted of the following: As of September 30, 2023 As of December 31, 2022 Gross carrying value Accumulated amortization Net carrying value Gross carrying value Accumulated amortization Net carrying value (in thousands) Intangible assets: Customer relationships $ 69,860 $ (26,250) $ 43,610 $ 69,860 $ (19,582) $ 50,278 Developed technology 50,130 (29,910) 20,220 50,130 (22,367) 27,763 Trade names 3,910 (3,504) 406 3,910 (2,564) 1,346 Internet protocol addresses 4,984 (1,845) 3,139 4,984 (1,471) 3,513 Backlog $ — $ — $ — $ 2,200 $ (2,200) $ — Total intangible assets $ 128,884 $ (61,509) $ 67,375 $ 131,084 $ (48,184) $ 82,900
Schedule of Expected Amortization Expense of Intangible Assets	The expected amortization expense of intangible assets subject to amortization as of September 30, 2023 is as follows: As of September 30, 2023 (in thousands) Remainder of 2023 $ 4,900 2024 19,599 2025 16,976 2026 9,193 2027 9,051 Thereafter 7,656 Total $ 67,375

Debt Instruments (Tables)

Debt Instruments (Tables)	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Schedule of Carrying Values of Debt Agreements	The following table reflects the carrying values of the debt agreements as of September 30, 2023 and December 31, 2022: As of September 30, 2023 As of December 31, 2022 (in thousands) (in thousands) Convertible Senior notes (effective interest rate of 0.38%) Principal amount $ 477,390 $ 713,753 Less: unamortized debt issuance costs (4,567) (9,043) Less: current portion of long-term debt — — Long-term debt, less current portion $ 472,823 $ 704,710

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Schedule of Purchase Commitments	Aside from the Company’s finance and operating lease commitments, including its colocation operating commitments, which have been disclosed in Note 7—Leases, the minimum future commitments related to the Company's purchase commitments as of September 30, 2023 were as follows: Cost of Revenue Commitments Operating Expense Commitments Total Purchase Commitments (in thousands) Remainder of 2023 $ 13,749 $ 4,481 $ 18,230 2024 27,789 5,107 32,896 2025 4,974 1,143 6,117 2026 7,622 499 8,121 2027 111 — 111 Thereafter 40 — 40 Total $ 54,285 $ 11,230 $ 65,515

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2023
Stockholders' Equity Note [Abstract]
Schedule of Stock Option Activity	The following table summarizes stock option activity during the nine months ended September 30, 2023: Shares Weighted- Weighted- Aggregate (in thousands) (in years) (in thousands) Outstanding at December 31, 2022 2,443 6.01 4.7 $ 7,674 Granted — — Exercised (265) 7.59 Cancelled/forfeited (44) 8.35 Outstanding at September 30, 2023 2,134 5.77 4.0 $ 28,657 Vested and exercisable at September 30, 2023 2,129 5.75 3.9 $ 28,627
Schedule of RSU, PSU, MPSUs Activity	The following table summarizes RSU activity during the nine months ended September 30, 2023: Number of Shares Weighted-Average (in thousands) Unvested RSUs as of December 31, 2022 11,990 $ 20.10 Granted 6,897 15.74 Vested (5,306) 19.01 Cancelled/forfeited (1,280) 22.61 Unvested RSUs as of September 30, 2023 12,301 $ 17.86 Number of Shares Weighted-Average Grant Date Fair Value Per Share (in thousands) Nonvested PSUs as of December 31, 2022 267 $ 28.16 Granted 762 15.88 Vested (78) 28.16 Cancelled/forfeited (122) 28.16 Nonvested PSUs as of September 30, 2023 829 $ 16.87 Number of Shares Weighted-Average Grant Date Fair Value Per Share (in thousands) Nonvested MPSUs as of December 31, 2022 2,174 $ 6.80 Granted 87 7.25 Vested — — Cancelled/forfeited (100) 6.88 Nonvested MPSUs as of September 30, 2023 2,161 $ 6.81
Schedule of Stock-Based Compensation Expense	The following table summarizes the components of total stock-based compensation expense included in the accompanying condensed consolidated statements of operations: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands) Cost of revenue $ 2,860 $ 2,978 $ 8,378 $ 9,112 Research and development 12,122 14,488 35,808 46,966 Sales and marketing 9,061 10,920 25,643 31,198 General and administrative 11,670 10,992 31,027 27,102 Total stock-based compensation expense $ 35,713 $ 39,378 $ 100,856 $ 114,378

Net Loss Per Share Attributab_2

Net Loss Per Share Attributable to Common Stockholders (Tables)	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Net Loss Per Share of Common Stock	The following table presents the computation of basic and diluted net loss per share of common stock: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 (in thousands, except per share amounts) Net loss attributable to common stockholders $ (54,311) $ (63,420) $ (109,702) $ (144,121) Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted 129,873 122,339 127,735 121,094 Net loss per share attributable to common stockholders, basic and diluted $ (0.42) $ (0.52) $ (0.86) $ (1.19)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following securities were excluded from the computation of diluted net loss per share of common stock for the periods presented as their effect would have been antidilutive: Number of Shares As of September 30, 2023 2022 (in thousands) Stock options 2,135 2,514 RSUs 12,301 12,981 PSUs 829 267 MPSUs 2,161 2,174 Shares issuable pursuant to the ESPP 345 194 Convertible senior notes (if-converted) 4,644 7,338 Total 22,415 25,468

Information About Revenue and_2

Information About Revenue and Geographic Areas (Tables)	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Schedule of Long-Lived Assets by Geographic Region	The Company’s property and equipment and operating lease right-of-use assets, each net, by geographic area were as follows: As of September 30, As of December 31, 2023 2022 (in thousands) United States $ 161,465 $ 175,794 All other countries 63,376 73,024 Total long-lived assets $ 224,841 $ 248,818

Nature of Business (Details)

Nature of Business (Details)	Sep. 30, 2023 operating_market
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of operating markets	79

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) - Customer Concentration Risk	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Revenue | Customer One
Concentration Risk [Line Items]
Concentration risk, percentage	12%		9%
Revenue | Customer One and Affiliated Customer
Concentration Risk [Line Items]
Concentration risk, percentage	14%	12%	11%	11%
Accounts Receivable | Customer One
Concentration Risk [Line Items]
Concentration risk, percentage			16%
Accounts Receivable | Customer One and Affiliated Customer
Concentration Risk [Line Items]
Concentration risk, percentage			20%		15%

Revenue - Schedule of Net Reven

Revenue - Schedule of Net Revenue by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Total revenue	$ 127,816	$ 108,504	$ 368,211	$ 313,404
United States
Disaggregation of Revenue [Line Items]
Total revenue	93,422	80,173	268,660	231,838
Asia Pacific
Disaggregation of Revenue [Line Items]
Total revenue	18,935	14,365	52,633	38,954
Europe
Disaggregation of Revenue [Line Items]
Total revenue	10,493	9,536	31,877	28,131
All other
Disaggregation of Revenue [Line Items]
Total revenue	$ 4,966	$ 4,430	$ 15,041	$ 14,481

Revenue - Narrative (Details)

Revenue - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Enterprise customer threshold	$ 100,000		$ 100,000
Revenue, performance obligation, description of payment terms			The Company’s payment terms and conditions vary by contract type, and generally range from 30 to 90 days.
Amortization of deferred contract costs	$ 4,100,000	$ 2,000,000	$ 11,253,000	$ 6,020,000

Revenue - Schedule of Revenue b

Revenue - Schedule of Revenue by Customer Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Total revenue	$ 127,816	$ 108,504	$ 368,211	$ 313,404
Prior Revenue Methodology
Disaggregation of Revenue [Line Items]
Total revenue	127,816	108,504	368,211	313,404
New Revenue Methodology
Disaggregation of Revenue [Line Items]
Total revenue	127,816	108,504	368,211	313,404
Enterprise customers | Prior Revenue Methodology
Disaggregation of Revenue [Line Items]
Total revenue	116,193	97,265	333,445	279,619
Enterprise customers | New Revenue Methodology
Disaggregation of Revenue [Line Items]
Total revenue	117,327	98,497	337,359	283,621
Non-enterprise customers | Prior Revenue Methodology
Disaggregation of Revenue [Line Items]
Total revenue	11,623	11,239	34,766	33,785
Non-enterprise customers | New Revenue Methodology
Disaggregation of Revenue [Line Items]
Total revenue	$ 10,489	$ 10,007	$ 30,852	$ 29,783

Revenue - Schedule of Contract

Revenue - Schedule of Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Contract assets	$ 409		$ 409		$ 19
Contract liabilities	37,459		37,459		$ 30,544
Contract with Customer, Liability
Revenue recognized in the period from amounts included in contract liability at the beginning of the period	$ 12,279	$ 10,627	$ 27,616	$ 23,231

Revenue - Remaining Performance

Revenue - Remaining Performance Obligation (Narrative) (Details) $ in Millions	Sep. 30, 2023 USD ($)
Revenue from Contract with Customer [Abstract]
Revenue performance obligation	$ 247.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, percentage	82%
Remaining performance obligation, timing of satisfaction	12 months

Revenue - Schedule of Costs to

Revenue - Schedule of Costs to Obtain Contracts (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Deferred contract costs, net	$ 60,634	$ 50,523

Investments and Fair Value Me_3

Investments and Fair Value Measurements - Schedule of Cash, Cash Equivalents, and Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Debt Securities, Available-for-sale [Line Items]
Total cash and cash equivalents	$ 270,300	$ 143,391	$ 87,897
Total marketable securities, current	158,055	374,581
Total marketable securities, non-current	32,280	165,105
Total marketable securities	190,335	539,686
Total cash, cash equivalents and marketable securities	460,635	683,077
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Total marketable securities, current	73,755	287,988
Total marketable securities	73,755	287,988
Corporate notes and bonds
Debt Securities, Available-for-sale [Line Items]
Total marketable securities, current	84,300	71,744
Total marketable securities, non-current	31,321	140,949
Total marketable securities	115,621	212,693
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Total marketable securities, current	0	175
Total marketable securities, non-current	959	24,156
Total marketable securities	959	24,331
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Total marketable securities, current	0	2,221
Total marketable securities	0	2,221
Foreign government and supranational securities
Debt Securities, Available-for-sale [Line Items]
Total marketable securities, current	0	12,453
Total marketable securities	0	12,453
Cash
Debt Securities, Available-for-sale [Line Items]
Total cash and cash equivalents	29,010	46,516
Money market funds
Debt Securities, Available-for-sale [Line Items]
Total cash and cash equivalents	216,378	96,875
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Total cash and cash equivalents	$ 24,912	$ 0

Investments and Fair Value Me_4

Investments and Fair Value Measurements - Schedule of Available-For-Sale Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 192,184	$ 548,333
Gross Unrealized Gain	2	0
Gross Unrealized Loss	(1,851)	(8,647)
Fair Value	190,335	539,686
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	73,753	291,685
Gross Unrealized Gain	2	0
Gross Unrealized Loss	0	(3,697)
Fair Value	73,755	287,988
Corporate notes and bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	117,470	217,187
Gross Unrealized Gain	0	0
Gross Unrealized Loss	(1,849)	(4,494)
Fair Value	115,621	212,693
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	961	24,617
Gross Unrealized Gain	0	0
Gross Unrealized Loss	(2)	(286)
Fair Value	959	24,331
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	0	2,322
Gross Unrealized Gain	0	0
Gross Unrealized Loss	0	(101)
Fair Value	0	2,221
Foreign government and supranational securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		12,522
Gross Unrealized Gain		0
Gross Unrealized Loss		(69)
Fair Value	$ 0	$ 12,453

Investments and Fair Value Me_5

Investments and Fair Value Measurements - Narrative (Details) $ in Millions	Sep. 30, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Fair Value Disclosures [Abstract]
Securities in a continuous loss position (in securities) | security	40	76
Restricted cash | $	$ 0.2	$ 0.2

Investments and Fair Value Me_6

Investments and Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	$ 241,290	$ 96,875
Total marketable securities	190,335	539,686
Total restricted cash	150	150
Total financial assets	431,775	636,711
Corporate notes and bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	115,621	212,693
U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	73,755	287,988
Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	2,221
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	959	24,331
Foreign government and supranational securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	12,453
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	216,378	96,875
Total restricted cash	150	150
U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	24,912
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	216,378	96,875
Total marketable securities	0	0
Total restricted cash	150	150
Total financial assets	216,528	97,025
Level 1 | Corporate notes and bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	0
Level 1 | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	0
Level 1 | Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	0
Level 1 | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	0
Level 1 | Foreign government and supranational securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	0
Level 1 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	216,378	96,875
Total restricted cash	150	150
Level 1 | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	24,912	0
Total marketable securities	190,335	539,686
Total restricted cash	0	0
Total financial assets	215,247	539,686
Level 2 | Corporate notes and bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	115,621	212,693
Level 2 | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	73,755	287,988
Level 2 | Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	2,221
Level 2 | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	959	24,331
Level 2 | Foreign government and supranational securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	12,453
Level 2 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	0
Total restricted cash	0	0
Level 2 | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	24,912
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	0
Total marketable securities	0	0
Total restricted cash	0	0
Total financial assets	0	0
Level 3 | Corporate notes and bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	0
Level 3 | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	0
Level 3 | Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	0
Level 3 | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	0
Level 3 | Foreign government and supranational securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total marketable securities	0	0
Level 3 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	0
Total restricted cash	0	$ 0
Level 3 | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	$ 0

Business Combinations - Narrati

Business Combinations - Narrative (Details) - USD ($)		3 Months Ended		9 Months Ended
	May 18, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill		$ 670,356,000		$ 670,356,000		$ 670,185,000
Glitch Inc
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired	100%
Aggregate consideration transferred	$ 34,900,000
Consideration transferred, holdback	$ 8,000,000
Holdback distributions				4,100,000
Consideration transferred, holdback, period for distribution	24 months
Intangible assets	$ 2,000,000
Cash	1,600,000
Other assets, net	600,000
Goodwill	$ 32,500,000
Acquisition related costs		$ 0	$ 0	$ 0	$ 2,000,000
Estimated useful life (in years)				3 years 7 months 6 days

Business Combinations - Schedul

Business Combinations - Schedule of Identifiable Finite-Lived Intangible Assets (Details) - Glitch Inc - USD ($) $ in Thousands		9 Months Ended
	May 18, 2022	Sep. 30, 2023
Business Acquisition [Line Items]
Total	$ 2,000
Estimated useful life (in years)		3 years 7 months 6 days
Developed technology
Business Acquisition [Line Items]
Total	$ 630
Estimated useful life (in years)	4 years
Customer relationships
Business Acquisition [Line Items]
Total	$ 760
Estimated useful life (in years)	3 years
Trade name
Business Acquisition [Line Items]
Total	$ 610
Estimated useful life (in years)	4 years

Balance Sheet Information - Sch

Balance Sheet Information - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 315,836	$ 302,839
Accumulated depreciation and amortization	(143,922)	(122,461)
Property and equipment, net	171,914	180,378
Computer and networking equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	215,330	225,009
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	8,565	8,374
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,055	1,792
Office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,228	1,176
Internal-use software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	88,658	66,488
Property and equipment, net	$ 57,700	$ 45,500

Balance Sheet Information - Nar

Balance Sheet Information - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Impairment expense	$ 4,316,000	$ 0	$ 4,316,000	$ 0
Depreciation and amortization	13,100,000	10,700,000	38,000,000	31,200,000
Property and equipment, net	171,914,000		171,914,000		$ 180,378,000
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Impairment expense	3,000,000
Property, Plant And Equipment, Advance Payments
Property, Plant and Equipment [Line Items]
Impairment expense	1,300,000
Internal-use software
Property, Plant and Equipment [Line Items]
Depreciation and amortization	3,800,000	$ 2,400,000	9,900,000	$ 6,000,000
Property and equipment, net	57,700,000		57,700,000		45,500,000
Computer and networking equipment
Property, Plant and Equipment [Line Items]
Finance lease, right-of-use asset, before accumulated amortization	74,700,000		74,700,000		77,300,000
Finance lease, right-of-use asset, accumulated amortization	$ 36,400,000		$ 36,400,000		$ 28,100,000

Balance Sheet Information - S_2

Balance Sheet Information - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Balance Sheet Related Disclosures [Abstract]
Deferred contract costs, net	$ 60,634	$ 50,523
Advance payment for purchase of property and equipment	31,516	37,013
Other assets	2,203	5,086
Total other assets	$ 94,353	$ 92,622

Balance Sheet Information - S_3

Balance Sheet Information - Schedule of Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Balance Sheet Related Disclosures [Abstract]
Accrued compensation and related benefits	$ 17,123	$ 20,204
Accrued bonus	14,909	15,818
Accrued colocation and bandwidth costs	16,081	10,448
Other tax liabilities	4,811	8,698
Other accrued liabilities	3,671	5,993
Total accrued expenses	$ 56,595	$ 61,161

Balance Sheet Information - S_4

Balance Sheet Information - Schedule of Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Balance Sheet Related Disclosures [Abstract]
Deferred revenue	$ 33,253	$ 28,047
Accrued computer and networking equipment	1,915	1,467
Holdback payable	3,771	4,013
Other current liabilities	1,295	867
Total other current liabilities	$ 40,234	$ 34,394

Balance Sheet Information - S_5

Balance Sheet Information - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 987,754	$ 993,738	$ 955,158	$ 1,013,953
Other comprehensive income (loss)	1,218	(136)	7,352	(10,051)
Ending balance	968,572	966,979	968,572	966,979
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(19)	(555)	(577)	(385)
Other comprehensive income (loss)	(8)	(22)	550	(192)
Ending balance	(27)	(577)	(27)	(577)
Available-for-sale investments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3,133)	(11,987)	(8,709)	(2,242)
Other comprehensive income (loss)	1,226	(114)	6,802	(9,859)
Ending balance	(1,907)	(12,101)	(1,907)	(12,101)
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3,152)	(12,542)	(9,286)	(2,627)
Other comprehensive income (loss)	1,218	(136)	7,352	(10,051)
Ending balance	$ (1,934)	$ (12,678)	$ (1,934)	$ (12,678)

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Lessee, Lease, Description [Line Items]
Sublease income	$ 0.4	$ 0.2	$ 1	$ 0.7
Lease not yet commenced, commitment amount	$ 1.5		$ 1.5
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease terms, operating (in years)	1 year		1 year
Remaining lease terms, finance (in years)	1 year		1 year
Subleases, remaining lease terms (in years)			1 year
Lease not yet commenced, term of contract	2 years		2 years
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms, operating (in years)	7 years		7 years
Remaining lease terms, finance (in years)	2 years		2 years
Subleases, remaining lease terms (in years)			7 years
Lease not yet commenced, term of contract	3 years		3 years

Leases - Schedule of Lease Cost

Leases - Schedule of Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Operating lease cost	$ 6,466	$ 9,336	$ 20,499	$ 23,578
Variable lease cost	4,024	1,456	11,391	8,723
Total operating lease costs	10,490	10,792	31,890	32,301
Amortization of assets under finance lease	3,544	3,717	10,786	10,901
Interest	297	602	1,103	1,843
Total finance lease costs	$ 3,841	$ 4,319	$ 11,889	$ 12,744

Leases - Schedule of Other Info

Leases - Schedule of Other Information (Details)	Sep. 30, 2023	Dec. 31, 2022
Weighted Average Remaining Lease Term (in years):
Operating leases	3 years 7 months 13 days	4 years 1 month 2 days
Finance leases	1 year 1 month 28 days	1 year 8 months 26 days
Weighted Average Discount Rate:
Operating leases	5.78%	5.36%
Finance leases	4.69%	4.73%

Leases - Schedule of Lease Matu

Leases - Schedule of Lease Maturity (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Operating Leases
Remainder of 2023	$ 8,066
2024	22,363
2025	18,623
2026	16,856
2027	9,580
Thereafter	2,921
Total future minimum lease payments	78,409
Less: imputed interest	(7,592)
Total liability	70,817
Finance Leases
Remainder of 2023	7,831
2024	14,282
2025	1,617
2026	0
2027	0
Thereafter	0
Total future minimum lease payments	23,730
Less: imputed interest	(620)
Total liability	$ 23,110

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Schedule of Changes in the Carrying Amount of Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 670,185
Foreign currency translation and other adjustments	171
Goodwill, ending balance	$ 670,356

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, impairment loss	$ 0	$ 0	$ 0	$ 0
Amortization of intangible assets	5,200,000	5,500,000	15,525,000	16,114,000
Payments to acquire intangible assets	0	0	0	0
Impairment of intangible assets	$ 0	$ 0	$ 0	$ 0

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Schedule of Intangible Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	$ 128,884	$ 131,084
Accumulated amortization	(61,509)	(48,184)
Net carrying value	67,375	82,900
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	69,860	69,860
Accumulated amortization	(26,250)	(19,582)
Net carrying value	43,610	50,278
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	50,130	50,130
Accumulated amortization	(29,910)	(22,367)
Net carrying value	20,220	27,763
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	3,910	3,910
Accumulated amortization	(3,504)	(2,564)
Net carrying value	406	1,346
Internet protocol addresses
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	4,984	4,984
Accumulated amortization	(1,845)	(1,471)
Net carrying value	3,139	3,513
Backlog
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	0	2,200
Accumulated amortization	0	(2,200)
Net carrying value	$ 0	$ 0

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Schedule of Expected Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2023	$ 4,900
2024	19,599
2025	16,976
2026	9,193
2027	9,051
Thereafter	7,656
Net carrying value	$ 67,375	$ 82,900

Debt Instruments - Senior Secur

Debt Instruments - Senior Secured Credit Facilities Agreement (Narrative) (Details) - SVB Revolver			3 Months Ended		9 Months Ended
	Jun. 28, 2023	Feb. 16, 2021 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Debt facility, maximum borrowing amount		$ 100,000,000
Transaction costs		$ 600,000
Basis spread adjustment	0.10%
Debt covenant, adjusted quick ratio, minimum requirement		1.25
Debt covenant, adjusted quick ratio, minimum threshold to trigger revenue growth covenant requirement		1.75
Amounts drawn on line of credit during the period			$ 0	$ 0	$ 0	$ 0
Amount of debt outstanding			$ 0		$ 0		$ 0
Minimum
Debt Instrument [Line Items]
Line of credit, unused capacity, commitment fee percentage		0.20%
Maximum
Debt Instrument [Line Items]
Line of credit, unused capacity, commitment fee percentage		0.25%
LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		1.75%
LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		2%
SOFR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
SOFR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	2%
Base Rate | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	0.75%
Base Rate | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	1%

Debt Instruments - Convertible

Debt Instruments - Convertible Senior Notes (Narrative) (Details) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 05, 2021 USD ($)	Sep. 30, 2023 USD ($) $ / shares	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) d $ / shares	Sep. 30, 2022 USD ($)	May 09, 2023 USD ($)	May 25, 2022 USD ($)
Debt Instrument [Line Items]
Net gain on extinguishment of debt		$ 0	$ 0	$ 36,760	$ 54,391
2026 Convertible Notes
Debt Instrument [Line Items]
Issuance of convertible note, net of issuance costs	$ 930,000
Debt instrument, convertible, conversion ratio				0.0097272
Debt instrument, convertible, conversion price (in US dollar per share) | $ / shares		$ 102.80		$ 102.80
2026 Convertible Notes | Fastly Conversion Option
Debt Instrument [Line Items]
Debt instrument, convertible, threshold percentage of stock price trigger				130%
Debt instrument, convertible, threshold trading days | d				20
Debt instrument, convertible, threshold consecutive trading days | d				30
2026 Convertible Notes | Holder Conversion Option One
Debt Instrument [Line Items]
Debt instrument, convertible, threshold percentage of stock price trigger				130%
Debt instrument, convertible, threshold trading days | d				20
Debt instrument, convertible, threshold consecutive trading days | d				30
2026 Convertible Notes | Holder Conversion Option Two
Debt Instrument [Line Items]
Debt instrument, convertible, threshold percentage of stock price trigger				98%
Debt instrument, convertible, threshold trading days | d				5
Debt instrument, convertible, threshold consecutive trading days | d				10
Convertible Debt | 2026 Convertible Notes
Debt Instrument [Line Items]
Debt Instrument, face amount	$ 948,800
Interest rate, stated percentage	0%
Debt instrument, face amount, additional principal issuable	$ 123,800
Discount and transaction costs	$ 18,600
Debt instrument, repurchased face amount						$ 236,400	$ 235,000
Debt instrument, repurchase amount						195,700	$ 176,400
Debt repurchase transaction costs						$ 1,200
Convertible Debt | 2026 Convertible Notes | Fastly Conversion Option
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage				100%
Convertible Debt | 2026 Convertible Notes | Fundamental Change
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage				100%

Debt Instruments - Schedule of

Debt Instruments - Schedule of Carrying Values of Debt Agreements (Details) - Convertible Debt - 2026 Convertible Notes - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Effective interest rate	0.38%
Principal amount	$ 477,390	$ 713,753
Less: unamortized debt issuance costs	(4,567)	(9,043)
Less: current portion of long-term debt	0	0
Long-term debt, less current portion	$ 472,823	$ 704,710

Debt Instruments - Narrative (D

Debt Instruments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Debt Disclosure [Abstract]
Interest expense	$ 0.6	$ 0.8	$ 2.2	$ 2.7
Total estimated fair value of the notes	$ 407		$ 407		$ 517.5

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Purchase Commitments (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Long-term Purchase Commitment [Line Items]
Remainder of 2023	$ 18,230
2024	32,896
2025	6,117
2026	8,121
2027	111
Thereafter	40
Total	65,515
Cost of Revenue Commitments
Long-term Purchase Commitment [Line Items]
Remainder of 2023	13,749
2024	27,789
2025	4,974
2026	7,622
2027	111
Thereafter	40
Total	54,285
Operating Expense Commitments
Long-term Purchase Commitment [Line Items]
Remainder of 2023	4,481
2024	5,107
2025	1,143
2026	499
2027	0
Thereafter	0
Total	$ 11,230

Commitments and Contingencies_2

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Sales and use tax liability	$ 4.8	$ 7.6

Stockholders' Equity - Equity I

Stockholders' Equity - Equity Incentive Plans (Narrative) (Details)	9 Months Ended
	Sep. 30, 2023 plan shares	Dec. 31, 2022 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity incentive plans | plan	4
Common stock, shares issued (in shares)	130,700,000	124,300,000
Common stock, shares outstanding (in shares)	130,700,000	124,300,000
Signal Sciences 2014 Equity Stock Options Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested stock options assumed (in shares)	251,754
2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares available for future issuance (in shares)	9,700,000	9,600,000

Stockholders' Equity - Stock Op

Stockholders' Equity - Stock Options (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 35,713	$ 39,378	$ 100,856	$ 114,378
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 200	$ 1,900	$ 1,300	$ 5,100
Stock options | 2011 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period			10 years
Award vesting period			4 years
Stock options | 2011 Equity Incentive Plan | First Year
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			25%
Stock options | 2011 Equity Incentive Plan | Remaining Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			36 months

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Stock Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Shares
Options outstanding, beginning balance (in shares) | shares	2,443
Granted (in shares) | shares	0
Exercised (in shares) | shares	(265)
Cancelled/forfeited (in shares) | shares	(44)
Options outstanding, ending balance (in shares) | shares	2,134	2,443
Vested and exercisable (in shares) | shares	2,129
Weighted- Average  Exercise Price
Options outstanding, weighted-average exercise price, beginning of period (in US dollar per share) | $ / shares	$ 6.01
Granted, weighted-average exercise price (in US dollar per share) | $ / shares	0
Exercised, weighted-average exercise price (in US dollar per share) | $ / shares	7.59
Cancelled/forfeited, weighted-average exercise price (in US dollar per share) | $ / shares	8.35
Options outstanding, weighted-average exercise price, end of period (in US dollar per share) | $ / shares	5.77	$ 6.01
Vested and exercisable, weighted-average exercise price (in US dollar per share) | $ / shares	$ 5.75
Stock Option Activity, Additional Disclosures
Weighted-average remaining contractual period	4 years	4 years 8 months 12 days
Vested and exercisable, weighted average contractual term	3 years 10 months 24 days
Aggregate intrinsic value | $	$ 28,657	$ 7,674
Vested and exercisable, aggregate intrinsic value | $	$ 28,627

Stockholders' Equity - RSUs and

Stockholders' Equity - RSUs and Revest Shares (Narrative) (Details)		3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 31, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2020 cofounder shares	Dec. 31, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 35,713,000	$ 39,378,000	$ 100,856,000	$ 114,378,000
Signal Sciences Corp.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares restricted for stock awards (in shares) | shares						896,499
Number of cofounders with shares subject to revesting | cofounder						3
Shares held back for restricted stock awards, revesting period						2 years
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		28,700,000	27,800,000	$ 79,700,000	72,900,000
RSUs | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				3 years
RSUs | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				4 years
RSUs | First Year | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				3 years
Award vesting percentage				25%
RSUs | First Year | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				4 years
Award vesting percentage				33%
RSUs | Remaining Period | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				24 months
RSUs | Remaining Period | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				36 months
Revest Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 0	7,300,000	$ 0	27,600,000
Nonvested shares sold that remain unvested (in shares) | shares							224,124
Proceeds from nonvested shares sold	$ 10,700,000
Modification expense, incremental fair value			$ 0		$ 5,600,000

Stockholders' Equity - Schedu_2

Stockholders' Equity - Schedule of RSU, PSU, MPSUs Activity (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2023 $ / shares shares
RSUs
Number of Shares
Beginning balance (in shares) | shares	11,990
Granted (in shares) | shares	6,897
Vested (in shares) | shares	(5,306)
Cancelled/forfeited (in shares) | shares	(1,280)
Ending balance (in shares) | shares	12,301
Weighted-Average  Grant Date Fair Value Per Share
Beginning balance (in US dollar per share) | $ / shares	$ 20.10
Granted (in US dollar per share) | $ / shares	15.74
Vested (in US dollar per share) | $ / shares	19.01
Cancelled/forfeited (in US dollar per share) | $ / shares	22.61
Ending balance (in US dollar per share) | $ / shares	$ 17.86
PSUs
Number of Shares
Beginning balance (in shares) | shares	267
Granted (in shares) | shares	762
Vested (in shares) | shares	(78)
Cancelled/forfeited (in shares) | shares	(122)
Ending balance (in shares) | shares	829
Weighted-Average  Grant Date Fair Value Per Share
Beginning balance (in US dollar per share) | $ / shares	$ 28.16
Granted (in US dollar per share) | $ / shares	15.88
Vested (in US dollar per share) | $ / shares	28.16
Cancelled/forfeited (in US dollar per share) | $ / shares	28.16
Ending balance (in US dollar per share) | $ / shares	$ 16.87
MPSUs
Number of Shares
Beginning balance (in shares) | shares	2,174
Granted (in shares) | shares	87
Vested (in shares) | shares	0
Cancelled/forfeited (in shares) | shares	(100)
Ending balance (in shares) | shares	2,161
Weighted-Average  Grant Date Fair Value Per Share
Beginning balance (in US dollar per share) | $ / shares	$ 6.80
Granted (in US dollar per share) | $ / shares	7.25
Vested (in US dollar per share) | $ / shares	0
Cancelled/forfeited (in US dollar per share) | $ / shares	6.88
Ending balance (in US dollar per share) | $ / shares	$ 6.81

Stockholders' Equity - Performa

Stockholders' Equity - Performance-Based Restricted Stock Units (PSUs) (Narrative) (Details) - USD ($) $ in Thousands, shares in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 28, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Mar. 29, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 35,713	$ 39,378	$ 100,856	$ 114,378
Issuance of restricted stock units related to bonus program				16,599
Performance Target Payout Level One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout of performance-based restricted stock units, percentage						50%
Performance Target Payout Level Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout of performance-based restricted stock units, percentage						100%
Performance Target Payout Level Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout of performance-based restricted stock units, percentage						150%
2023 and 2022 Bonus Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of restricted stock units related to bonus program (in shares)	1.2
Issuance of restricted stock units related to bonus program	$ 16,600
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		1,500	100	3,200	1,100
PSUs | 2023 and 2022 Bonus Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 6,600	$ 3,900	$ 15,600	$ 10,900

Stockholders' Equity - Market-B

Stockholders' Equity - Market-Based Performance Stock Units (MPSU) (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 35,713	$ 39,378	$ 100,856	$ 114,378
MPSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 1,500	$ 400	$ 4,900	$ 400

Stockholders' Equity - Employee

Stockholders' Equity - Employee Stock Purchase Program (ESPP) (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 35,713	$ 39,378	$ 100,856	$ 114,378
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued under ESPP (in shares)	0	0	697,000	292,000
Shares issuable pursuant to the ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum employee contribution as a percentage of salary			15%
Offering period duration			6 months
Purchase price of common stock, percent			85%
Stock-based compensation expense	$ 800	$ 500	$ 3,100	$ 2,300

Stockholders' Equity - Equity A

Stockholders' Equity - Equity Awards Modification (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Equity Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Modification expense	$ 0.4	$ 3	$ 0.4	$ 3.1

Stockholders' Equity - Schedu_3

Stockholders' Equity - Schedule of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 35,713	$ 39,378	$ 100,856	$ 114,378
Share-based payment arrangement, amount capitalized	3,700	2,500	6,912	6,034
Liability Classified Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	6,600	5,600	15,600	21,500
Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	2,860	2,978	8,378	9,112
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	12,122	14,488	35,808	46,966
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	9,061	10,920	25,643	31,198
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 11,670	$ 10,992	$ 31,027	$ 27,102

Net Loss Per Share Attributab_3

Net Loss Per Share Attributable to Common Stockholders - Schedule of Computation of Basic and Diluted Net Loss Per Share of Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net loss attributable to common stockholders, basic	$ (54,311)	$ (63,420)	$ (109,702)	$ (144,121)
Net loss attributable to common stockholders, diluted	$ (54,311)	$ (63,420)	$ (109,702)	$ (144,121)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	129,873	122,339	127,735	121,094
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	129,873	122,339	127,735	121,094
Net loss per share attributable to common stockholders, basic (in US dollar per share)	$ (0.42)	$ (0.52)	$ (0.86)	$ (1.19)
Net loss per share attributable to common stockholders, diluted (in US dollar per share)	$ (0.42)	$ (0.52)	$ (0.86)	$ (1.19)

Net Loss Per Share Attributab_4

Net Loss Per Share Attributable to Common Stockholders - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	22,415	25,468
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	2,135	2,514
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	12,301	12,981
PSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	829	267
MPSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	2,161	2,174
Shares issuable pursuant to the ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	345	194
Convertible senior notes (if-converted)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)	4,644	7,338

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Tax Examination [Line Items]
Income tax expense (benefit)	$ (1)	$ 118	$ 244	$ 317
Less than
Income Tax Examination [Line Items]
Income tax expense (benefit)	$ (100)

Information About Revenue and_3

Information About Revenue and Geographic Areas (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 224,841	$ 248,818
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	161,465	175,794
All other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 63,376	$ 73,024