Upwork (UPWK) 10-Q 7 Nov 23 2023 Q3 Quarterly report Financial data

Cover Page

Cover Page	9 Months Ended
	Sep. 30, 2023 shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-38678
Entity Registrant Name	UPWORK INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-4337682
Entity Address, Address Line One	475 Brannan Street, Suite 430
Entity Address, City or Town	San Francisco,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94107
City Area Code	650
Local Phone Number	316-7500
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	UPWK
Security Exchange Name	NASDAQ
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 (in shares)	136,109,497
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001627475
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 146,827	$ 129,384
Marketable securities	408,417	557,230
Funds held in escrow, including funds in transit	177,970	161,457
Trade and client receivables – net of allowance of $5,216 and $12,464 as of September 30, 2023 and December 31, 2022, respectively	60,262	64,888
Prepaid expenses and other current assets	16,537	17,947
Total current assets	810,013	930,906
Property and equipment, net	26,659	22,063
Goodwill	118,219	118,219
Operating lease asset	5,168	7,603
Other assets, noncurrent	1,379	1,454
Total assets	961,438	1,080,245
Current liabilities
Accounts payable	1,747	7,549
Escrow funds payable	177,970	161,457
Accrued expenses and other current liabilities	52,111	53,611
Deferred revenue	21,237	25,075
Total current liabilities	253,065	247,692
Debt, noncurrent	355,626	564,261
Operating lease liability, noncurrent	6,932	11,177
Other liabilities, noncurrent	2,876	8,236
Total liabilities	618,499	831,366
Commitments and contingencies (Note 6)
Stockholders’ equity
Common stock, $0.0001 par value; 490,000,000 shares authorized as of September 30, 2023 and December 31, 2022; 136,109,497 and 132,368,265 shares issued and outstanding as of September 30, 2023 and December 31, 2022, respectively	14	13
Additional paid-in capital	654,754	592,900
Accumulated other comprehensive loss	(393)	(3,085)
Accumulated deficit	(311,436)	(340,949)
Total stockholders’ equity	342,939	248,879
Total liabilities and stockholders’ equity	$ 961,438	$ 1,080,245

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	$ 5,216	$ 12,464
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	490,000,000	490,000,000
Common stock, shares issued (in shares)	136,109,497	132,368,265
Common stock, shares outstanding (in shares)	136,109,497	132,368,265

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenue	$ 175,733	$ 158,641	$ 505,202	$ 456,876
Cost of revenue	43,273	40,470	124,582	119,243
Gross profit	132,460	118,171	380,620	337,633
Operating expenses
Research and development	43,419	38,898	131,146	112,889
Sales and marketing	47,308	63,171	171,377	184,096
General and administrative	28,652	31,407	86,922	93,872
Provision for transaction losses	1,615	10,137	10,863	18,918
Total operating expenses	120,994	143,613	400,308	409,775
Income (loss) from operations	11,466	(25,442)	(19,688)	(72,142)
Interest expense	711	1,117	2,525	3,362
Other income, net	(6,477)	(1,772)	(55,273)	(2,215)
Income (loss) before income taxes	17,232	(24,787)	33,060	(73,289)
Income tax provision	(895)	(40)	(3,547)	(96)
Net income (loss)	$ 16,337	$ (24,827)	$ 29,513	$ (73,385)
Net income (loss) per share:
Basic (in dollars per share)	$ 0.12	$ (0.19)	$ 0.22	$ (0.56)
Diluted (in dollars per share)	$ 0.12	$ (0.19)	$ (0.06)	$ (0.56)
Weighted-average shares used to compute net income (loss) per share
Basic (in shares)	135,449,848	130,830,411	134,152,107	130,082,683
Diluted (in shares)	137,290,635	130,830,411	135,184,166	130,082,683
Other comprehensive income (loss), net of tax:
Net unrealized holding gain (loss) on marketable securities, net	$ 472	$ 166	$ 2,692	$ (4,089)
Total comprehensive income (loss)	$ 16,809	$ (24,661)	$ 32,205	$ (77,474)

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021		129,130,478
Beginning balance at Dec. 31, 2021	$ 259,517	$ 13	$ 511,096	$ (528)	$ (251,064)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options and common stock warrants (in shares)		352,336
Issuance of common stock upon exercise of stock options and common stock warrants	1,335		1,335
Stock-based compensation expense	56,180		56,180
Issuance of common stock for settlement of RSUs (in shares)		1,698,043
Tides Foundation common stock warrant expense	563		563
Issuance of common stock in connection with employee stock purchase plan (in shares)		161,625
Issuance of common stock in connection with employee stock purchase plan	2,462		2,462
Unrealized gain (loss) on marketable securities	(4,089)			(4,089)
Net income (loss)	(73,385)				(73,385)
Ending balance (in shares) at Sep. 30, 2022		131,342,482
Ending balance at Sep. 30, 2022	242,583	$ 13	571,636	(4,617)	(324,449)
Beginning balance (in shares) at Jun. 30, 2022		130,530,889
Beginning balance at Jun. 30, 2022	246,319	$ 13	550,711	(4,783)	(299,622)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options and common stock warrants (in shares)		81,115
Issuance of common stock upon exercise of stock options and common stock warrants	291		291
Stock-based compensation expense	20,446		20,446
Issuance of common stock for settlement of RSUs (in shares)		730,478
Tides Foundation common stock warrant expense	188		188
Unrealized gain (loss) on marketable securities	166			166
Net income (loss)	(24,827)				(24,827)
Ending balance (in shares) at Sep. 30, 2022		131,342,482
Ending balance at Sep. 30, 2022	$ 242,583	$ 13	571,636	(4,617)	(324,449)
Beginning balance (in shares) at Dec. 31, 2022	132,368,265	132,368,265
Beginning balance at Dec. 31, 2022	$ 248,879	$ 13	592,900	(3,085)	(340,949)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options and common stock warrants (in shares)		621,081
Issuance of common stock upon exercise of stock options and common stock warrants	1,940		1,940
Stock-based compensation expense	56,787		56,787
Issuance of common stock for settlement of RSUs (in shares)		2,743,136
Issuance of common stock for settlement of RSUs	1	$ 1
Tides Foundation common stock warrant expense	563		563
Issuance of common stock in connection with employee stock purchase plan (in shares)		377,015
Issuance of common stock in connection with employee stock purchase plan	2,564		2,564
Unrealized gain (loss) on marketable securities	2,692			2,692
Net income (loss)	$ 29,513				29,513
Ending balance (in shares) at Sep. 30, 2023	136,109,497	136,109,497
Ending balance at Sep. 30, 2023	$ 342,939	$ 14	654,754	(393)	(311,436)
Beginning balance (in shares) at Jun. 30, 2023		134,883,597
Beginning balance at Jun. 30, 2023	306,923	$ 13	635,548	(865)	(327,773)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options and common stock warrants (in shares)		346,988
Issuance of common stock upon exercise of stock options and common stock warrants	1,005		1,005
Stock-based compensation expense	18,013		18,013
Issuance of common stock for settlement of RSUs (in shares)		878,912
Issuance of common stock for settlement of RSUs	1	$ 1
Tides Foundation common stock warrant expense	188		188
Unrealized gain (loss) on marketable securities	472			472
Net income (loss)	$ 16,337				16,337
Ending balance (in shares) at Sep. 30, 2023	136,109,497	136,109,497
Ending balance at Sep. 30, 2023	$ 342,939	$ 14	$ 654,754	$ (393)	$ (311,436)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 29,513	$ (73,385)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Provision for transaction losses	6,806	18,412
Depreciation	5,641	6,007
Amortization of debt issuance costs	1,637	2,221
Amortization of premium (accretion of discount) of purchases of marketable securities, net	(9,832)	485
Amortization of operating lease asset	2,435	2,295
Tides Foundation common stock warrant expense	563	563
Stock-based compensation expense	56,148	56,119
Gain on early extinguishment of debt	(38,945)	0
Changes in operating assets and liabilities:
Trade and client receivables	(2,638)	(17,764)
Prepaid expenses and other assets	1,487	380
Operating lease liability	(4,375)	(3,994)
Accounts payable	(5,802)	278
Accrued expenses and other liabilities	(1,077)	2,202
Deferred revenue	(9,001)	4,285
Net cash provided by (used in) operating activities	32,560	(1,896)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of marketable securities	(449,180)	(398,259)
Proceeds from maturities of marketable securities	451,047	371,879
Proceeds from sale of marketable securities	159,575	0
Purchases of property and equipment	(558)	(893)
Internal-use software and platform development costs	(9,179)	(5,160)
Net cash provided by (used in) investing activities	151,705	(32,433)
CASH FLOWS FROM FINANCING ACTIVITIES:
Changes in escrow funds payable	16,513	9,153
Proceeds from exercises of stock options	1,941	1,335
Proceeds from employee stock purchase plan	2,564	2,462
Net cash paid for early extinguishment of debt	(171,327)	0
Net cash provided by (used in) financing activities	(150,309)	12,950
NET CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	33,956	(21,379)
Cash, cash equivalents, and restricted cash—beginning of period	295,231	352,058
Cash, cash equivalents, and restricted cash—end of period	329,187	330,679
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest	1,314	1,520
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING ACTIVITIES:
Property and equipment purchased but not yet paid	0	107
Internal-use software and platform development costs incurred but not yet paid	$ 40	$ 75

Description of Business

Description of Business	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business Upwork Inc., which is referred to as the Company or Upwork, operates a work marketplace that connects businesses, which are referred to as clients, with independent talent. Independent talent on the Company’s work marketplace, which are referred to as talent, and, together with clients, as users, include independent professionals and agencies of varying sizes and are an increasingly sought-after, critical, and expanding segment of the global workforce. The Company is headquartered in San Francisco, California. Unless otherwise expressly stated or the context otherwise requires, the terms “Upwork” and the “Company” in these notes to the condensed consolidated financial statements refer to Upwork and its wholly owned subsidiaries.

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States, which is referred to as U.S. GAAP, and applicable rules and regulations of the SEC regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. As such, the information included in this Quarterly Report should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, which is referred to as the Annual Report, filed with the SEC on February 16, 2023. The condensed consolidated balance sheet as of December 31, 2022 included herein was derived from the audited financial statements as of that date but does not include all disclosures including notes required by U.S. GAAP. The condensed consolidated financial statements include the accounts of Upwork and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated. The accompanying condensed consolidated financial statements reflect all normal recurring adjustments necessary for a fair statement of the financial position, results of operations, changes in stockholders’ equity and cash flows for the interim periods, but do not purport to be indicative of the results of operations or financial condition to be anticipated for the full year ending December 31, 2023. Use of Estimates The preparation of the condensed consolidated financial statements in conformity with U.S. GAAP requires management to make certain estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the periods presented. Such estimates include, but are not limited to: the useful lives of assets; assessment of the recoverability of long-lived assets; goodwill impairment; standalone selling price of material rights and the period of time over which to defer and recognize the consideration allocated to the material rights; allowance for expected credit losses; liabilities relating to transaction losses; stock-based compensation; and accounting for income taxes. Management bases its estimates on historical experience and on various other assumptions that management believes to be reasonable under the circumstances. The Company evaluates its estimates, assumptions, and judgments on an ongoing basis using historical experience and other factors and revises them when facts and circumstances dictate. The Company is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities. These estimates may change as new events occur and additional information is obtained. Actual results could differ materially from these estimates under different assumptions or conditions. Summary of Significant Accounting Policies The significant accounting policies applied in the Company’s audited consolidated financial statements, as disclosed in the Annual Report, are applied consistently in these unaudited interim condensed consolidated financial statements. Recent Accounting Pronouncements Not Yet Adopted The Company has reviewed the accounting pronouncements issued during the nine months ended September 30, 2023 and concluded they were either not applicable or not expected to have a material impact on the Company’s condensed consolidated financial statements.

Revenue

Revenue	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Disaggregation of Revenue See “Note 9 —Segment and Geographical Information” for the Company’s revenue disaggregated by type of service and geographic area. Remaining Performance Obligations As of September 30, 2023, the Company had $23.7 million of remaining performance obligations. The Company’s remaining performance obligations primarily consist of the transaction price that has been allocated to unexercised material rights related to the Company’s arrangements with talent subject to tiered service fees. In May 2023, the Company retired its tiered service fee structure for talent and introduced a simplified flat service fee of 10%. This change took effect for new contracts and existing contracts that would have otherwise been subject to a 20% fee under the former tiered service fee model. Contracts with a 5% fee under the former tiered service fee model will retain that rate for those contracts through the end of 2023. With this change to the Company’s tiered service fee structure, the Company no longer allocates a portion of the transaction price to unexercised material rights. As of September 30, 2023, the Company expects to recognize $21.2 million over the next 12 months, with the remaining balance recognized thereafter. The remaining transaction price allocated to other performance obligations is immaterial. The Company has applied the practical expedients and exemptions and does not disclose the value of remaining performance obligations for: (i) contracts with an original expected length of one year or less; and (ii) contracts for which the variable consideration is allocated entirely to a wholly unsatisfied promise to transfer a distinct service that forms part of a single performance obligation under the series guidance. Contract Balances The following table provides information about the balances of the Company’s trade and client receivables, net of allowance and contract liabilities included in deferred revenue and other liabilities, noncurrent: (In thousands) September 30, 2023 December 31, 2022 Trade and client receivables, net of allowance $ 60,262 $ 64,888 Contract liabilities Deferred revenue 21,237 25,075 Deferred revenue (component of other liabilities, noncurrent) 2,451 7,614 During the three and nine months ended September 30, 2023, changes in the contract liabilities balances were a result of normal business activity and deferral, and subsequent recognition, of revenue related to arrangements with talent subject to tiered service fees and related allocation of transaction price to material rights.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company defines fair value as the exchange price that would be received from the sale of an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The authoritative guidance describes three levels of inputs that may be used to measure fair value: • Level I—Observable inputs that reflect unadjusted quoted prices for identical assets or liabilities in active markets; • Level II—Observable inputs other than Level I prices, such as unadjusted quoted prices for similar assets or liabilities in active markets, unadjusted quoted prices for identical or similar assets or liabilities 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 III—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. These inputs are based on the Company’s own assumptions used to measure assets and liabilities at fair value and require significant management judgment or estimation. The categorization of a financial instrument within the fair value hierarchy is based upon the lowest level of input that is significant to its fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires management to make judgments and consider factors specific to the assets or liabilities. The Company’s financial instruments that are carried at fair value consist of Level I and Level II assets as of September 30, 2023 and December 31, 2022. The following tables summarize the Company’s cash and available-for-sale marketable securities’ amortized cost, gross unrealized gains, gross unrealized losses, and fair value by significant investment category reported as cash and cash equivalents or marketable securities as of September 30, 2023 and December 31, 2022: (In thousands) September 30, 2023 Amortized Unrealized Unrealized Fair Cash and Marketable Cash $ 72,707 $ — $ — $ 72,707 $ 72,707 $ — Level I Money market funds 64,821 — — 64,821 64,821 — Treasury bills 245,658 16 (12) 245,662 4,481 241,181 U.S. government securities 28,558 — (166) 28,392 — 28,392 Total Level I 339,037 16 (178) 338,875 69,302 269,573 Level II Commercial paper 35,863 — — 35,863 — 35,863 Corporate bonds 62,558 4 (62) 62,500 4,818 57,682 Commercial deposits 5,492 — — 5,492 — 5,492 Asset-backed securities 20,133 — (108) 20,025 — 20,025 Foreign government and agency securities 2,720 — (2) 2,718 — 2,718 U.S. agency securities 17,087 — (23) 17,064 — 17,064 Total Level II 143,853 4 (195) 143,662 4,818 138,844 Total $ 555,597 $ 20 $ (373) $ 555,244 $ 146,827 $ 408,417 (In thousands) December 31, 2022 Amortized Unrealized Unrealized Fair Cash and Marketable Cash $ 27,528 $ — $ — $ 27,528 $ 27,528 $ — Level I Money market funds 85,302 — — 85,302 85,302 — Treasury bills 172,500 13 (131) 172,382 5,096 167,286 U.S. government securities 106,167 — (2,025) 104,142 — 104,142 Total Level I 363,969 13 (2,156) 361,826 90,398 271,428 Level II Commercial paper 120,360 — — 120,360 8,038 112,322 Corporate bonds 85,639 3 (639) 85,003 3,420 81,583 Commercial deposits 28,945 — — 28,945 — 28,945 Asset-backed securities 33,261 31 (306) 32,986 — 32,986 Foreign government and agency securities (1) 8,176 — (10) 8,166 — 8,166 U.S. agency securities (1) 21,785 38 (23) 21,800 — 21,800 Total Level II 298,166 72 (978) 297,260 11,458 285,802 Total $ 689,663 $ 85 $ (3,134) $ 686,614 $ 129,384 $ 557,230 (1) Prior period has been reclassified to conform to the current period presentation as of September 30, 2023. Unrealized Investment Losses The following tables summarize, for all debt securities classified as available for sale in an unrealized loss position as of September 30, 2023 and December 31, 2022, the aggregate fair value and gross unrealized loss by the length of time those securities have been continuously in an unrealized loss position. (In thousands) Less Than 12 Months 12 Months or Longer Total Duration of unrealized losses September 30, 2023 Fair Value Unrealized loss Fair Value Unrealized loss Fair Value Unrealized loss Treasury bills 53,749 (12) — — 53,749 (12) U.S. government securities 13,484 (79) 14,907 (87) 28,391 (166) Corporate bonds 48,521 (53) 2,630 (9) 51,151 (62) Asset-backed securities 15,072 (65) 4,953 (43) 20,025 (108) Foreign government and agency securities 2,718 (1) 1 (1) 2,719 (2) U.S. agency securities 14,574 (10) 2,490 (13) 17,064 (23) Total $ 148,118 $ (220) $ 24,981 $ (153) $ 173,099 $ (373) (In thousands) Less Than 12 Months 12 Months or Longer Total Duration of unrealized losses December 31, 2022 Fair Value Unrealized loss Fair Value Unrealized loss Fair Value Unrealized loss Treasury bills $ 132,995 $ (131) $ — $ — $ 132,995 $ (131) U.S. government securities 21,214 (63) 82,927 (1,963) 104,141 (2,026) Corporate bonds 18,274 (120) 58,235 (519) 76,509 (639) Asset-backed securities 23,515 (285) 1,707 (20) 25,222 (305) Foreign government and agency securities (1) 5,576 (8) 2,591 (2) 8,167 (10) U.S. agency securities (1) 9,478 (23) — — 9,478 (23) Total $ 211,052 $ (630) $ 145,460 $ (2,504) $ 356,512 $ (3,134) (1) Prior period has been reclassified to conform to the current period presentation as of September 30, 2023. For available-for-sale marketable debt securities with unrealized loss positions, the Company does not intend to sell these securities, nor does it anticipate that it will need to or be required to sell the securities. As of September 30, 2023 and December 31, 2022, the decline in fair value of these securities was due to increases in interest rates and not due to credit-related factors. As of September 30, 2023 and 2022, the Company considered any decreases in market value to be temporary in nature and did not consider any of the Company’s marketable securities to be impaired. The Company did not record any impairment charges with respect to its marketable securities during each of the three and nine months ended September 30, 2023 and 2022. In March 2023, the Company sold $138.2 million of available-for-sale marketable securities to enable the repurchase of a portion of the Company’s outstanding 0.25% convertible senior notes due 2026, which are referred to as the Notes. For additional information regarding the Notes, refer to “Note 7—Debt.”

Balance Sheet Components

Balance Sheet Components	9 Months Ended
	Sep. 30, 2023
Balance Sheet Related Disclosures [Abstract]
Balance Sheet Components	Balance Sheet Components Cash and Cash Equivalents, Restricted Cash, and Funds Held In Escrow, Including Funds In Transit The following table reconciles cash and cash equivalents, restricted cash, and funds held in escrow that are restricted as reported in the condensed consolidated balance sheets as of September 30, 2023 and December 31, 2022 to the total of the same amounts shown in the condensed consolidated statement of cash flows for the nine months ended September 30, 2023: (In thousands) September 30, 2023 December 31, 2022 Cash and cash equivalents $ 146,827 $ 129,384 Restricted cash 4,390 4,390 Funds held in escrow, including funds in transit 177,970 161,457 Total cash, cash equivalents, and restricted cash as shown in the condensed consolidated statement of cash flows $ 329,187 $ 295,231 Property and Equipment, Net Property and equipment, net consisted of the following: (In thousands) September 30, 2023 December 31, 2022 Internal-use software and platform development $ 43,094 $ 33,273 Leasehold improvements 11,644 11,644 Computer equipment and software 6,778 6,514 Office furniture and fixtures 3,475 3,475 Total property and equipment 64,991 54,906 Less: accumulated depreciation (38,332) (32,843) Property and equipment, net $ 26,659 $ 22,063 For the three months ended September 30, 2023 and 2022, depreciation expense related to property and equipment was $0.7 million and $0.8 million, respectively. For the nine months ended September 30, 2023 and 2022, depreciation expense related to property and equipment was $2.2 million and $2.4 million, respectively. For the three months ended September 30, 2023 and 2022, the Company capitalized $3.4 million and $2.3 million of internal-use software and platform development costs, respectively. For the nine months ended September 30, 2023 and 2022, the Company capitalized $9.8 million and $5.2 million of internal-use software and platform development costs, respectively. For the three months ended September 30, 2023 and 2022, amortization expense related to the capitalized internal-use software and platform development costs was $1.1 million and $1.2 million, respectively. For the nine months ended September 30, 2023 and 2022, amortization expense related to the capitalized internal-use software and platform development costs was $3.4 million and $3.6 million, respectively. Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consisted of the following: (In thousands) September 30, 2023 December 31, 2022 Accrued compensation and related benefits $ 17,669 $ 17,239 Accrued indirect taxes 13,650 14,102 Accrued vendor expenses 9,390 8,858 Operating lease liability, current 6,372 6,502 Accrued payment processing fees 2,034 2,425 Accrued talent costs 1,748 2,352 Other 1,248 2,133 Total accrued expenses and other current liabilities $ 52,111 $ 53,611

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Letters of Credit In conjunction with the Company’s operating lease agreements, as of both September 30, 2023 and December 31, 2022, the Company had irrevocable letters of credit outstanding in the aggregate amount of $0.8 million. The letters of credit are collateralized by restricted cash in the same amount. No amounts had been drawn against these letters of credit as of September 30, 2023 and December 31, 2022. Contingencies The Company accrues contingent liabilities when it is probable that future expenditures will be made and such expenditures can be reasonably estimated. Potential contingencies may include various claims and litigation or non-income tax matters that arise from time to time in the normal course of business. Due to uncertainties inherent in such contingencies, the Company can give no assurance that it will prevail in any such matters, which could subject the Company to significant liability or damages. Any claims, litigation, or other contingencies could have an adverse effect on the Company’s business, financial position, results of operations, or cash flows in or following the period that claims, litigation, or other contingencies are resolved. As of September 30, 2023 and December 31, 2022, the Company was not a party to any material legal proceedings or claims, nor is the Company aware of any pending or threatened litigation or claims, including non-income tax matters, that could reasonably be expected to have a material adverse effect on its business, operating results, cash flows, or financial condition. Accordingly, the amounts accrued for contingencies for which the Company believes a loss is probable were not material as of September 30, 2023 and December 31, 2022. Indemnification The Company has indemnification agreements with its officers, directors, and certain key employees to indemnify them while they are serving in good faith in their respective positions. In the ordinary course of business, the Company enters into contractual arrangements under which it agrees to provide indemnification of varying scope and terms to clients, business partners, vendors, and other parties, including, but not limited to, losses arising out of the Company’s breach of such agreements, claims related to potential data or information security breaches, intellectual property infringement claims made by third parties, and other liabilities relating to or arising from the Company’s products and services or its acts or omissions. In addition, subject to the terms of the applicable agreement, as part of the Company’s Upwork Enterprise and certain other premium offerings, the Company indemnifies clients that subscribe to worker classification services for losses arising from worker misclassification. It is not possible to determine the maximum potential loss under these indemnification provisions due to the Company’s limited history of prior indemnification claims and the facts and circumstances involved in each particular provision.

Debt

Debt	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Debt	Debt The following table presents the carrying value of the Company’s debt obligations as of September 30, 2023 and December 31, 2022: (In thousands) September 30, 2023 December 31, 2022 Convertible senior notes $ 360,998 $ 575,000 Total debt 360,998 575,000 Less: unamortized debt issuance costs (5,372) (10,739) Debt, noncurrent $ 355,626 $ 564,261 Weighted-average interest rate 0.77 % 0.76 % Convertible Senior Notes Due 2026 In August 2021, the Company issued, at par value, $575.0 million aggregate principal amount of the Notes. The issuance included the full exercise of an option granted by the Company to the initial purchasers of the Notes to purchase an additional $75.0 million aggregate principal amount of Notes. The Notes were issued pursuant to and are subject to the terms and conditions of an indenture between the Company and Computershare Trust Company, National Association (as successor in interest to Wells Fargo Bank, National Association), as trustee, which is referred to as the Indenture. The Notes were offered and sold in a private offering to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended. In March 2023, the Company entered into separate, privately negotiated repurchase agreements with a limited number of institutional holders of the Notes to repurchase for cash an aggregate of $214.0 million principal amount of the Notes, which are collectively referred to as the Repurchases. The Company paid $170.8 million in cash to consummate the Repurchases. As a result, during the nine months ended September 30, 2023, the Company recognized a gain on the early extinguishment of debt of $38.9 million, which is net of $3.7 million related to the pro-rata write-off of unamortized issuance costs associated with the sale of the Notes in August 2021, and $0.6 million of other fees incurred to effect the Repurchases. The resulting gain on early extinguishment of debt is included in other income, net in the Company’s condensed consolidated statement of operations and comprehensive income (loss). As of September 30, 2023, $361.0 million aggregate principal amount of the Notes remain outstanding. The Notes are senior, unsecured obligations of the Company and bear interest at a rate of 0.25% per year. Interest will accrue from August 10, 2021 and is payable semiannually in arrears on February 15 and August 15 of each year, beginning on February 15, 2022, and the principal amount of the Notes will not accrete. The Notes will mature on August 15, 2026, unless earlier redeemed, repurchased, or converted in accordance with the terms of the Notes. Holders may convert all or any portion of their Notes, in multiples of $1,000 principal amount at the option of the holder (i) on or after May 15, 2026, at any time until the close of business on the second scheduled trading day immediately preceding the maturity date, and (ii) prior to the close of business on the business day immediately preceding May 15, 2026, only upon satisfaction of certain conditions and during certain periods specified as follows: • during any calendar quarter commencing after the calendar quarter ending on December 31, 2021, if the last reported sale price of the Company’s common stock is greater than or equal to 130% of the conversion price 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 of the conversion price on each applicable trading day; • during the five consecutive business day period after any five consecutive trading day period, which is referred to as the Measurement Period, in which the trading price (as defined in the Indenture) 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 per share of the Company’s common stock on such trading day and the conversion rate on such trading day; • if the Company calls such Notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; and • upon the occurrence of specified corporate events described in the Indenture. Upon conversion, the Notes may be settled in shares of the Company’s common stock, cash or a combination of cash and shares of the common stock, at the election of the Company. The Notes have an initial conversion rate of 15.1338 shares of common stock per $1,000 principal amount of Notes, which is subject to adjustment in certain circumstances. This is equivalent to an initial conversion price of approximately $66.08 per share of the Company’s common stock. The conversion rate is subject to customary adjustments under certain circumstances in accordance with the terms of the Indenture. In addition, if certain corporate events that constitute a make-whole fundamental change (as defined in the Indenture) occur or if the Company issues a notice of redemption with respect to the Notes prior to the maturity date, then the conversion rate will, in certain circumstances, be increased for a specified period of time. The Company may redeem for cash all or any portion of the Notes (subject to a partial redemption limitation), at the Company’s option, on or after August 20, 2024, if the last reported sale price per share of the Company’s common stock has been at least 130% of the conversion price 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 at a redemption price equal to 100% of the principal amount of the Notes to be redeemed, plus any accrued and unpaid interest, if any, to, but excluding, the redemption date. No sinking fund is provided for the Notes, which means that the Company is not required to redeem or retire the Notes periodically. Upon the occurrence of a fundamental change (as defined in the Indenture), subject to certain conditions, holders have the right to require the Company to repurchase for cash all or a portion of their Notes at a price equal to 100% of the principal amount of the Notes to be repurchased, plus any accrued and unpaid interest thereon, if any, until, but excluding, the fundamental change repurchase date. The Notes are the Company’s senior unsecured obligations and rank senior in right of payment to any of the Company’s existing and future indebtedness that is expressly subordinated in right of payment to the Notes; equal in right of payment to any of the Company’s existing and future unsecured indebtedness that is not so subordinated; effectively junior in right of payment to any of the Company’s existing and future secured indebtedness to the extent of the value of the assets securing such indebtedness; and structurally junior to all existing and future indebtedness and other liabilities (including trade payables) of the Company’s subsidiaries. The net proceeds from the issuance of the Notes were approximately $560.1 million, after deducting debt issuance costs. The total debt issuance costs incurred and recorded by the Company amounted to $14.9 million, which were recorded as a reduction to the face amount of the Notes and will be amortized to interest expense on a straight-line basis, which produces a materially consistent amount as the effective interest method over the contractual term of the Notes. For the three months ended September 30, 2023, interest expense was $0.2 million and amortization of the issuance costs was $0.5 million related to the Notes. For the three months ended September 30, 2022, interest expense was $0.4 million and amortization of the issuance costs was $0.7 million related to the Notes. For the nine months ended September 30, 2023, interest expense was $0.8 million and amortization of the issuance costs was $1.6 million related to the Notes. For the nine months ended September 30, 2022, interest expense was $1.1 million and amortization of the issuance costs was $2.2 million related to the Notes. As of September 30, 2023, the if-converted value of the Notes did not exceed the outstanding principal amount. As of September 30, 2023, the total estimated fair value of the Notes was $300.3 million and was determined based on a market approach using actual bids and offers of the Notes in an over-the-counter market on the last trading day of the period. The Company considers these assumptions to be Level II inputs in accordance with the fair value hierarchy described in “Note 4—Fair Value Measurements.” Capped Calls In connection with the pricing of the Notes on August 5, 2021 and in connection with the full exercise by the initial purchasers on August 9, 2021 of their option to purchase additional Notes, the Company used approximately $49.4 million of the net proceeds from the issuance of the Notes to enter into privately negotiated capped call transactions, which are referred to as the Capped Calls, with various financial institutions. Subject to customary anti-dilution adjustments substantially similar to those applicable to the Notes, the Capped Calls cover the number of shares of the Company’s common stock initially underlying the Notes. By entering into the Capped Calls, the Company expects to reduce the potential dilution to its common stock (or, in the event a conversion of the Notes is settled in cash, to reduce its cash payment obligation) in the event that at the time of conversion of the Notes its common stock price per share exceeds the conversion price of the Notes, with such reduction subject to a cap based on the cap price. If, however, the market price per share of common stock, as measured under the terms of the Capped Calls, exceeds the cap price of the Capped Calls, there would be dilution and/or there would not be an offset of such potential cash payments, in each case, to the extent that the then-market price per share of common stock exceeds the cap price of the Capped Calls. The initial cap price of the Capped Calls is $92.74 per share of common stock, which represents a premium of 100% over the last reported sale price of the common stock of $46.37 per share on August 5, 2021, and is subject to certain customary adjustments under the terms of the Capped Calls; provided that the cap price will not be reduced to an amount less than the strike price of $66.08 per share. The Capped Calls are separate transactions and are not part of the terms of the Notes. The Capped Calls meet the criteria for classification as equity and, as such, are not remeasured each reporting period and are included as a reduction to additional paid-in-capital within stockholders’ equity. The Capped Calls remain in effect notwithstanding the Repurchases.

Net Income (Loss) per Share

Net Income (Loss) per Share	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Net Income (Loss) per Share	Net Income (Loss) per Share The following table sets forth the computation of the Company’s basic and diluted net income (loss) per share for the periods presented: Three Months Ended Nine Months Ended (In thousands, except share and per share data) 2023 2022 2023 2022 Numerator: Basic: net income (loss) $ 16,337 $ (24,827) $ 29,513 $ (73,385) Gain on early extinguishment of debt, net of tax — — (38,525) — Interest expense related to convertible senior notes, net of tax — — 389 — Diluted $ 16,337 $ (24,827) $ (8,623) $ (73,385) Denominator: Weighted-average shares used to compute net income (loss) per share, basic and diluted Basic 135,449,848 130,830,411 134,152,107 130,082,683 Options to purchase common stock 1,358,272 — — — Common stock issuable upon exercise of common stock warrants 299,758 — — — Common stock issuable in connection with employee stock purchase plan 182,757 — — — Common stock issuable in connection with convertible senior notes — — 1,032,059 — Diluted 137,290,635 130,830,411 135,184,166 130,082,683 Net income (loss) per share: Basic $ 0.12 $ (0.19) $ 0.22 $ (0.56) Diluted $ 0.12 $ (0.19) $ (0.06) $ (0.56) The following potentially dilutive shares were excluded from the computation of diluted net income (loss) per share because including them would have been anti-dilutive: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Options to purchase common stock 1,922,248 3,911,482 3,280,520 3,911,482 Common stock issuable upon exercise of common stock warrants — 350,000 300,000 350,000 Common stock issuable upon vesting of restricted stock units and performance stock units 10,305,551 8,573,146 10,305,551 8,573,146 Common stock issuable in connection with employee stock purchase plan 1,595,436 1,070,071 1,778,193 1,070,071 Common stock issuable in connection with convertible senior notes 5,463,045 8,701,935 5,463,045 8,701,935 Total 19,286,280 22,606,634 21,127,309 22,606,634

Segment and Geographical Inform

Segment and Geographical Information	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Segment and Geographical Information	Segment and Geographical Information The Company operates as one operating and reportable segment for purposes of allocating resources and evaluating financial performance. The following table sets forth total revenue by type of service for the periods presented: Three Months Ended Nine Months Ended (In thousands) 2023 2022 2023 2022 Marketplace Basic, Plus, Client Marketplace (1) and other $ 149,625 $ 132,647 $ 428,609 $ 383,343 Enterprise 12,114 12,496 37,849 35,550 Managed Services 13,994 13,498 38,744 37,983 Total revenue $ 175,733 $ 158,641 $ 505,202 $ 456,876 (1) In April 2022, the Company combined its Upwork Basic and Upwork Plus client offerings into its Client Marketplace offering. In April 2023, the Company introduced a contract initiation fee for clients on the Client Marketplace offering—up to $4.95 per contract. The Company generates its revenue from talent and clients. The following table sets forth total revenue by geographic area based on the billing address of its talent and clients for the periods presented: Three Months Ended Nine Months Ended (In thousands) 2023 2022 2023 2022 Talent United States $ 24,796 $ 21,607 $ 69,239 $ 64,286 India 12,918 11,337 36,387 34,764 Philippines 11,781 9,981 32,965 29,668 Rest of world (1) 45,569 39,296 130,626 121,865 Total talent revenue 95,064 82,221 269,217 250,583 Clients United States 59,570 56,897 174,444 153,369 Rest of world (1) 21,099 19,523 61,541 52,924 Total clients revenue 80,669 76,420 235,985 206,293 Total revenue $ 175,733 $ 158,641 $ 505,202 $ 456,876 (1) During the three and nine months ended September 30, 2023 and 2022, no single country included in the Rest of world category had revenue that exceeded 10% of Total talent revenue, Total clients revenue, or Total revenue. Substantially all of the Company’s long-lived assets were located in the United States as of September 30, 2023 and December 31, 2022.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsIn November 2023, the Company’s board of directors authorized the repurchase of up to $100.0 million of shares of the Company’s outstanding common stock, or the Share Repurchase Program. Repurchases of the Company’s common stock under the Share Repurchase Program may be made from time to time on the open market (including through the use of trading plans intended to qualify under Rule 10b5-1 under the Exchange Act), in privately negotiated transactions, or by other methods, at the Company’s discretion, and in accordance with applicable securities laws and other restrictions. The Share Repurchase Program has no expiration date and will continue until otherwise suspended, terminated, or modified at any time for any reason. The Share Repurchase Program does not obligate the Company to repurchase any dollar amount or number of shares.

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)	$ 16,337	$ (24,827)	$ 29,513	$ (73,385)

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 30, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States, which is referred to as U.S. GAAP, and applicable rules and regulations of the SEC regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. As such, the information included in this Quarterly Report should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, which is referred to as the Annual Report, filed with the SEC on February 16, 2023. The condensed consolidated balance sheet as of December 31, 2022 included herein was derived from the audited financial statements as of that date but does not include all disclosures including notes required by U.S. GAAP. The condensed consolidated financial statements include the accounts of Upwork and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated. The accompanying condensed consolidated financial statements reflect all normal recurring adjustments necessary for a fair statement of the financial position, results of operations, changes in stockholders’ equity and cash flows for the interim periods, but do not purport to be indicative of the results of operations or financial condition to be anticipated for the full year ending December 31, 2023.
Use of Estimates	Use of Estimates The preparation of the condensed consolidated financial statements in conformity with U.S. GAAP requires management to make certain estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the periods presented. Such estimates include, but are not limited to: the useful lives of assets; assessment of the recoverability of long-lived assets; goodwill impairment; standalone selling price of material rights and the period of time over which to defer and recognize the consideration allocated to the material rights; allowance for expected credit losses; liabilities relating to transaction losses; stock-based compensation; and accounting for income taxes. Management bases its estimates on historical experience and on various other assumptions that management believes to be reasonable under the circumstances. The Company evaluates its estimates, assumptions, and judgments on an ongoing basis using historical experience and other factors and revises them when facts and circumstances dictate. The Company is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities. These estimates may
Summary of Significant Accounting Policies and Recent Accounting Pronouncements Not Yet Adopted	Summary of Significant Accounting Policies The significant accounting policies applied in the Company’s audited consolidated financial statements, as disclosed in the Annual Report, are applied consistently in these unaudited interim condensed consolidated financial statements. Recent Accounting Pronouncements Not Yet Adopted The Company has reviewed the accounting pronouncements issued during the nine months ended September 30, 2023 and concluded they were either not applicable or not expected to have a material impact on the Company’s condensed consolidated financial statements.
Fair Value Measurements	The Company defines fair value as the exchange price that would be received from the sale of an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The authoritative guidance describes three levels of inputs that may be used to measure fair value: • Level I—Observable inputs that reflect unadjusted quoted prices for identical assets or liabilities in active markets; • Level II—Observable inputs other than Level I prices, such as unadjusted quoted prices for similar assets or liabilities in active markets, unadjusted quoted prices for identical or similar assets or liabilities 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 III—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. These inputs are based on the Company’s own assumptions used to measure assets and liabilities at fair value and require significant management judgment or estimation. The categorization of a financial instrument within the fair value hierarchy is based upon the lowest level of input that is significant to its fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires management to make judgments and consider factors specific to the assets or liabilities.

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Contract with Customer, Asset and Liability	The following table provides information about the balances of the Company’s trade and client receivables, net of allowance and contract liabilities included in deferred revenue and other liabilities, noncurrent: (In thousands) September 30, 2023 December 31, 2022 Trade and client receivables, net of allowance $ 60,262 $ 64,888 Contract liabilities Deferred revenue 21,237 25,075 Deferred revenue (component of other liabilities, noncurrent) 2,451 7,614

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of Financial Assets Measured at Fair Value	The following tables summarize the Company’s cash and available-for-sale marketable securities’ amortized cost, gross unrealized gains, gross unrealized losses, and fair value by significant investment category reported as cash and cash equivalents or marketable securities as of September 30, 2023 and December 31, 2022: (In thousands) September 30, 2023 Amortized Unrealized Unrealized Fair Cash and Marketable Cash $ 72,707 $ — $ — $ 72,707 $ 72,707 $ — Level I Money market funds 64,821 — — 64,821 64,821 — Treasury bills 245,658 16 (12) 245,662 4,481 241,181 U.S. government securities 28,558 — (166) 28,392 — 28,392 Total Level I 339,037 16 (178) 338,875 69,302 269,573 Level II Commercial paper 35,863 — — 35,863 — 35,863 Corporate bonds 62,558 4 (62) 62,500 4,818 57,682 Commercial deposits 5,492 — — 5,492 — 5,492 Asset-backed securities 20,133 — (108) 20,025 — 20,025 Foreign government and agency securities 2,720 — (2) 2,718 — 2,718 U.S. agency securities 17,087 — (23) 17,064 — 17,064 Total Level II 143,853 4 (195) 143,662 4,818 138,844 Total $ 555,597 $ 20 $ (373) $ 555,244 $ 146,827 $ 408,417 (In thousands) December 31, 2022 Amortized Unrealized Unrealized Fair Cash and Marketable Cash $ 27,528 $ — $ — $ 27,528 $ 27,528 $ — Level I Money market funds 85,302 — — 85,302 85,302 — Treasury bills 172,500 13 (131) 172,382 5,096 167,286 U.S. government securities 106,167 — (2,025) 104,142 — 104,142 Total Level I 363,969 13 (2,156) 361,826 90,398 271,428 Level II Commercial paper 120,360 — — 120,360 8,038 112,322 Corporate bonds 85,639 3 (639) 85,003 3,420 81,583 Commercial deposits 28,945 — — 28,945 — 28,945 Asset-backed securities 33,261 31 (306) 32,986 — 32,986 Foreign government and agency securities (1) 8,176 — (10) 8,166 — 8,166 U.S. agency securities (1) 21,785 38 (23) 21,800 — 21,800 Total Level II 298,166 72 (978) 297,260 11,458 285,802 Total $ 689,663 $ 85 $ (3,134) $ 686,614 $ 129,384 $ 557,230 (1) Prior period has been reclassified to conform to the current period presentation as of September 30, 2023.
Schedule of Unrealized Gain (Loss) on Investments	The following tables summarize, for all debt securities classified as available for sale in an unrealized loss position as of September 30, 2023 and December 31, 2022, the aggregate fair value and gross unrealized loss by the length of time those securities have been continuously in an unrealized loss position. (In thousands) Less Than 12 Months 12 Months or Longer Total Duration of unrealized losses September 30, 2023 Fair Value Unrealized loss Fair Value Unrealized loss Fair Value Unrealized loss Treasury bills 53,749 (12) — — 53,749 (12) U.S. government securities 13,484 (79) 14,907 (87) 28,391 (166) Corporate bonds 48,521 (53) 2,630 (9) 51,151 (62) Asset-backed securities 15,072 (65) 4,953 (43) 20,025 (108) Foreign government and agency securities 2,718 (1) 1 (1) 2,719 (2) U.S. agency securities 14,574 (10) 2,490 (13) 17,064 (23) Total $ 148,118 $ (220) $ 24,981 $ (153) $ 173,099 $ (373) (In thousands) Less Than 12 Months 12 Months or Longer Total Duration of unrealized losses December 31, 2022 Fair Value Unrealized loss Fair Value Unrealized loss Fair Value Unrealized loss Treasury bills $ 132,995 $ (131) $ — $ — $ 132,995 $ (131) U.S. government securities 21,214 (63) 82,927 (1,963) 104,141 (2,026) Corporate bonds 18,274 (120) 58,235 (519) 76,509 (639) Asset-backed securities 23,515 (285) 1,707 (20) 25,222 (305) Foreign government and agency securities (1) 5,576 (8) 2,591 (2) 8,167 (10) U.S. agency securities (1) 9,478 (23) — — 9,478 (23) Total $ 211,052 $ (630) $ 145,460 $ (2,504) $ 356,512 $ (3,134) (1) Prior period has been reclassified to conform to the current period presentation as of September 30, 2023.

Balance Sheet Components (Table

Balance Sheet Components (Tables)	9 Months Ended
	Sep. 30, 2023
Balance Sheet Related Disclosures [Abstract]
Schedule of Cash and Cash Equivalents	The following table reconciles cash and cash equivalents, restricted cash, and funds held in escrow that are restricted as reported in the condensed consolidated balance sheets as of September 30, 2023 and December 31, 2022 to the total of the same amounts shown in the condensed consolidated statement of cash flows for the nine months ended September 30, 2023: (In thousands) September 30, 2023 December 31, 2022 Cash and cash equivalents $ 146,827 $ 129,384 Restricted cash 4,390 4,390 Funds held in escrow, including funds in transit 177,970 161,457 Total cash, cash equivalents, and restricted cash as shown in the condensed consolidated statement of cash flows $ 329,187 $ 295,231
Schedule of Property and Equipment, Net	Property and equipment, net consisted of the following: (In thousands) September 30, 2023 December 31, 2022 Internal-use software and platform development $ 43,094 $ 33,273 Leasehold improvements 11,644 11,644 Computer equipment and software 6,778 6,514 Office furniture and fixtures 3,475 3,475 Total property and equipment 64,991 54,906 Less: accumulated depreciation (38,332) (32,843) Property and equipment, net $ 26,659 $ 22,063
Schedule of Accrued Expenses and Other Current Liabilities	Accrued expenses and other current liabilities consisted of the following: (In thousands) September 30, 2023 December 31, 2022 Accrued compensation and related benefits $ 17,669 $ 17,239 Accrued indirect taxes 13,650 14,102 Accrued vendor expenses 9,390 8,858 Operating lease liability, current 6,372 6,502 Accrued payment processing fees 2,034 2,425 Accrued talent costs 1,748 2,352 Other 1,248 2,133 Total accrued expenses and other current liabilities $ 52,111 $ 53,611

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Schedule of Carrying Value of Debt	The following table presents the carrying value of the Company’s debt obligations as of September 30, 2023 and December 31, 2022: (In thousands) September 30, 2023 December 31, 2022 Convertible senior notes $ 360,998 $ 575,000 Total debt 360,998 575,000 Less: unamortized debt issuance costs (5,372) (10,739) Debt, noncurrent $ 355,626 $ 564,261 Weighted-average interest rate 0.77 % 0.76 %

Net Income (Loss) per Share (Ta

Net Income (Loss) per Share (Tables)	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Net Income (Loss) Per Share Attributable to Common Stockholders	The following table sets forth the computation of the Company’s basic and diluted net income (loss) per share for the periods presented: Three Months Ended Nine Months Ended (In thousands, except share and per share data) 2023 2022 2023 2022 Numerator: Basic: net income (loss) $ 16,337 $ (24,827) $ 29,513 $ (73,385) Gain on early extinguishment of debt, net of tax — — (38,525) — Interest expense related to convertible senior notes, net of tax — — 389 — Diluted $ 16,337 $ (24,827) $ (8,623) $ (73,385) Denominator: Weighted-average shares used to compute net income (loss) per share, basic and diluted Basic 135,449,848 130,830,411 134,152,107 130,082,683 Options to purchase common stock 1,358,272 — — — Common stock issuable upon exercise of common stock warrants 299,758 — — — Common stock issuable in connection with employee stock purchase plan 182,757 — — — Common stock issuable in connection with convertible senior notes — — 1,032,059 — Diluted 137,290,635 130,830,411 135,184,166 130,082,683 Net income (loss) per share: Basic $ 0.12 $ (0.19) $ 0.22 $ (0.56) Diluted $ 0.12 $ (0.19) $ (0.06) $ (0.56)
Schedule of Potentially Dilutive Shares Excluded from Computation of Diluted Net Income (Loss) Per Share Attributable to Common Stockholders	The following potentially dilutive shares were excluded from the computation of diluted net income (loss) per share because including them would have been anti-dilutive: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Options to purchase common stock 1,922,248 3,911,482 3,280,520 3,911,482 Common stock issuable upon exercise of common stock warrants — 350,000 300,000 350,000 Common stock issuable upon vesting of restricted stock units and performance stock units 10,305,551 8,573,146 10,305,551 8,573,146 Common stock issuable in connection with employee stock purchase plan 1,595,436 1,070,071 1,778,193 1,070,071 Common stock issuable in connection with convertible senior notes 5,463,045 8,701,935 5,463,045 8,701,935 Total 19,286,280 22,606,634 21,127,309 22,606,634

Segment and Geographical Info_2

Segment and Geographical Information (Tables)	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Schedule of Revenue by Type of Service	The following table sets forth total revenue by type of service for the periods presented: Three Months Ended Nine Months Ended (In thousands) 2023 2022 2023 2022 Marketplace Basic, Plus, Client Marketplace (1) and other $ 149,625 $ 132,647 $ 428,609 $ 383,343 Enterprise 12,114 12,496 37,849 35,550 Managed Services 13,994 13,498 38,744 37,983 Total revenue $ 175,733 $ 158,641 $ 505,202 $ 456,876 (1) In April 2022, the Company combined its Upwork Basic and Upwork Plus client offerings into its Client Marketplace offering. In April 2023, the Company introduced a contract initiation fee for clients on the Client Marketplace offering—up to $4.95 per contract.
Schedule of Revenue by Geographic Area Based on Billing Address of Freelancers and Clients	The following table sets forth total revenue by geographic area based on the billing address of its talent and clients for the periods presented: Three Months Ended Nine Months Ended (In thousands) 2023 2022 2023 2022 Talent United States $ 24,796 $ 21,607 $ 69,239 $ 64,286 India 12,918 11,337 36,387 34,764 Philippines 11,781 9,981 32,965 29,668 Rest of world (1) 45,569 39,296 130,626 121,865 Total talent revenue 95,064 82,221 269,217 250,583 Clients United States 59,570 56,897 174,444 153,369 Rest of world (1) 21,099 19,523 61,541 52,924 Total clients revenue 80,669 76,420 235,985 206,293 Total revenue $ 175,733 $ 158,641 $ 505,202 $ 456,876 (1) During the three and nine months ended September 30, 2023 and 2022, no single country included in the Rest of world category had revenue that exceeded 10% of Total talent revenue, Total clients revenue, or Total revenue.

Revenue - Additional Informatio

Revenue - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	May 31, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation		$ 23.7		$ 23.7
Revenue from contract with customer, service fee	10%
Deferred revenue recognized		9.9	$ 7	$ 20.6	$ 16.6
Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue from contract with customer, service fee				5%
Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue from contract with customer, service fee	20%
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		$ 21.2		$ 21.2
Remaining performance obligation recognized thereafter		12 months		12 months

Revenue - Contract Balances (De

Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Trade and client receivables, net of allowance	$ 60,262	$ 64,888
Contract liabilities
Deferred revenue	21,237	25,075
Deferred revenue (component of other liabilities, noncurrent)	$ 2,451	$ 7,614

Fair Value Measurements and Mar

Fair Value Measurements and Marketable Securities - Financial Assets Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	$ 555,597	$ 689,663
Unrealized Gain	20	85
Unrealized Loss	(373)	(3,134)
Fair Value	555,244	686,614
Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	146,827	129,384
Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	408,417	557,230
Level I
Assets, Fair Value Disclosure [Abstract]
Cash	72,707	27,528
Amortized Cost	339,037	363,969
Unrealized Gain	16	13
Unrealized Loss	(178)	(2,156)
Fair Value	338,875	361,826
Level I | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	69,302	90,398
Level I | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	269,573	271,428
Level II
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	143,853	298,166
Unrealized Gain	4	72
Unrealized Loss	(195)	(978)
Fair Value	143,662	297,260
Level II | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	4,818	11,458
Level II | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	138,844	285,802
Money market funds | Level I
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	64,821	85,302
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	64,821	85,302
Money market funds | Level I | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	64,821	85,302
Money market funds | Level I | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	0	0
Treasury bills | Level I
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	245,658	172,500
Unrealized Gain	16	13
Unrealized Loss	(12)	(131)
Fair Value	245,662	172,382
Treasury bills | Level I | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	4,481	5,096
Treasury bills | Level I | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	241,181	167,286
U.S. government securities | Level I
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	28,558	106,167
Unrealized Gain	0	0
Unrealized Loss	(166)	(2,025)
Fair Value	28,392	104,142
U.S. government securities | Level I | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	0	0
U.S. government securities | Level I | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	28,392	104,142
Commercial paper | Level II
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	35,863	120,360
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	35,863	120,360
Commercial paper | Level II | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	0	8,038
Commercial paper | Level II | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	35,863	112,322
Corporate bonds | Level II
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	62,558	85,639
Unrealized Gain	4	3
Unrealized Loss	(62)	(639)
Fair Value	62,500	85,003
Corporate bonds | Level II | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	4,818	3,420
Corporate bonds | Level II | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	57,682	81,583
Commercial deposits | Level II
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	5,492	28,945
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	5,492	28,945
Commercial deposits | Level II | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	0	0
Commercial deposits | Level II | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	5,492	28,945
Asset-backed securities | Level II
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	20,133	33,261
Unrealized Gain	0	31
Unrealized Loss	(108)	(306)
Fair Value	20,025	32,986
Asset-backed securities | Level II | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	0	0
Asset-backed securities | Level II | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	20,025	32,986
Foreign government and agency securities | Level II
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	2,720	8,176
Unrealized Gain	0	0
Unrealized Loss	(2)	(10)
Fair Value	2,718	8,166
Foreign government and agency securities | Level II | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	0	0
Foreign government and agency securities | Level II | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	2,718	8,166
U.S. agency securities | Level II
Assets, Fair Value Disclosure [Abstract]
Amortized Cost	17,087	21,785
Unrealized Gain	0	38
Unrealized Loss	(23)	(23)
Fair Value	17,064	21,800
U.S. agency securities | Level II | Cash and Cash Equivalents
Assets, Fair Value Disclosure [Abstract]
Fair Value	0	0
U.S. agency securities | Level II | Marketable Securities
Assets, Fair Value Disclosure [Abstract]
Fair Value	$ 17,064	$ 21,800

Fair Value Measurements - Unrea

Fair Value Measurements - Unrealized Gain (Loss) On Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value
Less Than 12 Months	$ 148,118	$ 211,052
12 Months or Longer	24,981	145,460
Total	173,099	356,512
Unrealized loss
Less Than 12 Months	(220)	(630)
12 Months or Longer	(153)	(2,504)
Total	(373)	(3,134)
Treasury bills
Fair Value
Less Than 12 Months	53,749	132,995
12 Months or Longer	0	0
Total	53,749	132,995
Unrealized loss
Less Than 12 Months	(12)	(131)
12 Months or Longer	0	0
Total	(12)	(131)
U.S. government securities
Fair Value
Less Than 12 Months	13,484	21,214
12 Months or Longer	14,907	82,927
Total	28,391	104,141
Unrealized loss
Less Than 12 Months	(79)	(63)
12 Months or Longer	(87)	(1,963)
Total	(166)	(2,026)
Corporate bonds
Fair Value
Less Than 12 Months	48,521	18,274
12 Months or Longer	2,630	58,235
Total	51,151	76,509
Unrealized loss
Less Than 12 Months	(53)	(120)
12 Months or Longer	(9)	(519)
Total	(62)	(639)
Asset-backed securities
Fair Value
Less Than 12 Months	15,072	23,515
12 Months or Longer	4,953	1,707
Total	20,025	25,222
Unrealized loss
Less Than 12 Months	(65)	(285)
12 Months or Longer	(43)	(20)
Total	(108)	(305)
Foreign government and agency securities
Fair Value
Less Than 12 Months	2,718	5,576
12 Months or Longer	1	2,591
Total	2,719	8,167
Unrealized loss
Less Than 12 Months	(1)	(8)
12 Months or Longer	(1)	(2)
Total	(2)	(10)
U.S. agency securities
Fair Value
Less Than 12 Months	14,574	9,478
12 Months or Longer	2,490	0
Total	17,064	9,478
Unrealized loss
Less Than 12 Months	(10)	(23)
12 Months or Longer	(13)	0
Total	$ (23)	$ (23)

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Mar. 31, 2023	Sep. 30, 2023	Sep. 30, 2022	Aug. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Proceeds from sale of marketable securities	$ 138,200	$ 159,575	$ 0
Convertible Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, interest rate	0.25%			0.25%

Balance Sheet Components - Cash

Balance Sheet Components - Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Balance Sheet Related Disclosures [Abstract]
Cash and cash equivalents	$ 146,827	$ 129,384
Restricted cash	4,390	4,390
Funds held in escrow, including funds in transit	177,970	161,457
Total cash, cash equivalents, and restricted cash as shown in the condensed consolidated statement of cash flows	$ 329,187	$ 295,231	$ 330,679	$ 352,058

Balance Sheet Components - Prop

Balance Sheet Components - Property and Equipment, Net (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
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 64,991		$ 64,991		$ 54,906
Less: accumulated depreciation	(38,332)		(38,332)		(32,843)
Property and equipment, net	26,659		26,659		22,063
Depreciation expense	700	$ 800	2,200	$ 2,400
Capitalized internal-use software and platform development costs	3,400	2,300	9,800	5,200
Amortization of internal-use software and platform development costs	1,100	$ 1,200	3,400	$ 3,600
Internal-use software and platform development
Property, Plant and Equipment [Line Items]
Total property and equipment	43,094		43,094		33,273
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	11,644		11,644		11,644
Computer equipment and software
Property, Plant and Equipment [Line Items]
Total property and equipment	6,778		6,778		6,514
Office furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 3,475		$ 3,475		$ 3,475

Balance Sheet Components - Accr

Balance Sheet Components - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Balance Sheet Related Disclosures [Abstract]
Accrued compensation and related benefits	$ 17,669	$ 17,239
Accrued indirect taxes	13,650	14,102
Accrued vendor expenses	9,390	8,858
Operating lease liability, current	6,372	6,502
Accrued payment processing fees	2,034	2,425
Accrued talent costs	1,748	2,352
Other	1,248	2,133
Total accrued expenses and other current liabilities	$ 52,111	$ 53,611

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Line of credit facility, maximum borrowing capacity (up to)	$ 800,000	$ 800,000
Long-term line of credit	$ 0	$ 0

Debt - Schedule of Carrying Val

Debt - Schedule of Carrying Value of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total debt	$ 360,998	$ 575,000
Less: unamortized debt issuance costs	(5,372)	(10,739)
Debt, noncurrent	$ 355,626	$ 564,261
Weighted-average interest rate	0.77%	0.76%
Convertible Senior Notes
Debt Instrument [Line Items]
Total debt	$ 360,998	$ 575,000

Debt - Narrative (Details)

Debt - Narrative (Details)				1 Months Ended						3 Months Ended		9 Months Ended
	Aug. 10, 2021	Aug. 09, 2021 USD ($) $ / shares	Aug. 05, 2021 $ / shares	Mar. 31, 2023 USD ($)	Aug. 31, 2021 USD ($) $ / shares	Aug. 31, 2021 USD ($) $ / shares	Aug. 31, 2021 USD ($) tradingDay $ / shares	Aug. 31, 2021 USD ($) businessDay $ / shares	Aug. 31, 2021 USD ($) segment $ / shares	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 instrument, face amount					$ 575,000,000	$ 575,000,000	$ 575,000,000	$ 575,000,000	$ 575,000,000
Additional aggregate amount to be purchased					$ 75,000,000	$ 75,000,000	$ 75,000,000	$ 75,000,000	$ 75,000,000
Payment for debt extinguishment												$ 171,327,000	$ 0
Gain on early extinguishment of debt												38,945,000	0
Outstanding long-term debt										$ 360,998,000		360,998,000		$ 575,000,000
Convertible debt, conversion rate	1.50%
Amortization of debt issuance costs												1,637,000	2,221,000
Convertible Senior Notes
Debt Instrument [Line Items]
Debt instrument, repurchased face amount				$ 214,000,000
Payment for debt extinguishment				$ 170,800,000
Gain on early extinguishment of debt												38,900,000
Write off of unamortized issuance costs												3,700,000
Debt extinguishment, fee												600,000
Outstanding long-term debt										360,998,000		360,998,000		$ 575,000,000
Debt, interest rate				0.25%	0.25%	0.25%	0.25%	0.25%	0.25%
Convertible debt, threshold percentage of stock price trigger					130%
Convertible debt, threshold trading days (in trading days)							20		20
Convertible debt, consecutive trading days (in trading days) | tradingDay							30
Convertible debt, business period (in business days) | businessDay								5
Convertible debt, measurement period (in trading days) | tradingDay							5
Convertible debt, measurement period percentage					98%
Convertible debt, conversion price (in dollars per share) | $ / shares					$ 66.08	$ 66.08	$ 66.08	$ 66.08	$ 66.08
Redemption price, percentage of principal amount redeemed					100%
Proceeds from issuance of convertible senior notes						$ 560,100,000
Debt issuance costs, gross					$ 14,900,000	$ 14,900,000	$ 14,900,000	$ 14,900,000	$ 14,900,000
Interest expense, debt, excluding amortization										200,000	$ 400,000	800,000	1,100,000
Amortization of debt issuance costs										500,000	$ 700,000	1,600,000	$ 2,200,000
Purchases of capped calls related to convertible senior notes		$ 49,400,000
Convertible Senior Notes | Call Option
Debt Instrument [Line Items]
Strike price (in dollars per share) | $ / shares		$ 92.74	$ 66.08
Premium over last reported sale price, percentage			100%
Price per share of stock transaction (in dollars per share) | $ / shares			$ 46.37
Convertible Senior Notes | Level II
Debt Instrument [Line Items]
Estimated fair value of debt										$ 300,300,000		$ 300,300,000

Net Income (Loss) per Share - S

Net Income (Loss) per Share - Schedule of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Basic: net income (loss)	$ 16,337	$ (24,827)	$ 29,513	$ (73,385)
Gain on early extinguishment of debt, net of tax	0	0	(38,525)	0
Interest expense related to convertible senior notes, net of tax	0	0	389	0
Diluted	$ 16,337	$ (24,827)	$ (8,623)	$ (73,385)
Weighted-average shares used to compute net income (loss) per share, basic and diluted
Basic (in shares)	135,449,848	130,830,411	134,152,107	130,082,683
Options to purchase common stock (in shares)	1,358,272	0	0	0
Common stock issuable upon exercise of common stock warrants (in shares)	299,758	0	0	0
Common stock issuable in connection with employee stock purchase plan (in shares)	182,757	0	0	0
Common stock issuable in connection with convertible senior notes (in shares)	0	0	1,032,059	0
Diluted (in shares)	137,290,635	130,830,411	135,184,166	130,082,683
Net income (loss) per share:
Basic (in dollars per share)	$ 0.12	$ (0.19)	$ 0.22	$ (0.56)
Diluted (in dollars per share)	$ 0.12	$ (0.19)	$ (0.06)	$ (0.56)

Net Income (Loss) per Share -_2

Net Income (Loss) per Share - Schedule of Potentially Dilutive Securities (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	19,286,280	22,606,634	21,127,309	22,606,634
Options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	1,922,248	3,911,482	3,280,520	3,911,482
Common stock issuable upon exercise of common stock warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	0	350,000	300,000	350,000
Common stock issuable upon vesting of restricted stock units and performance stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	10,305,551	8,573,146	10,305,551	8,573,146
Common stock issuable in connection with employee stock purchase plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	1,595,436	1,070,071	1,778,193	1,070,071
Common stock issuable in connection with convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	5,463,045	8,701,935	5,463,045	8,701,935

Segment and Geographical Info_3

Segment and Geographical Information - Additional Information (Details)	9 Months Ended
	Sep. 30, 2023 segment
Segment Reporting [Abstract]
Number of operating segments	1
Number of reportable segments	1

Segment and Geographical Info_4

Segment and Geographical Information - Revenue by Type of Service (Details) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2023 $ / Contract	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
Disaggregation of Revenue [Line Items]
Total revenue		$ 175,733	$ 158,641	$ 505,202	$ 456,876
Revenue from contract with customer, initiation fee | $ / Contract	4.95
Basic, Plus, Client Marketplace and other
Disaggregation of Revenue [Line Items]
Total revenue		149,625	132,647	428,609	383,343
Enterprise
Disaggregation of Revenue [Line Items]
Total revenue		12,114	12,496	37,849	35,550
Managed Services
Disaggregation of Revenue [Line Items]
Total revenue		$ 13,994	$ 13,498	$ 38,744	$ 37,983

Segment and Geographical Info_5

Segment and Geographical Information - Revenue by Geographic Area Based on Billing Address of Freelancers and Clients (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 175,733	$ 158,641	$ 505,202	$ 456,876
Talent
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	95,064	82,221	269,217	250,583
Talent | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	24,796	21,607	69,239	64,286
Talent | India
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	12,918	11,337	36,387	34,764
Talent | Philippines
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	11,781	9,981	32,965	29,668
Talent | Rest of world
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	45,569	39,296	130,626	121,865
Clients
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	80,669	76,420	235,985	206,293
Clients | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	59,570	56,897	174,444	153,369
Clients | Rest of world
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 21,099	$ 19,523	$ 61,541	$ 52,924

Subsequent Events (Details)

Subsequent Events (Details)	Nov. 07, 2023 USD ($)
Subsequent Event
Subsequent Event [Line Items]
Stock repurchase program, authorized amount	$ 100,000,000