Five9 (FIVN) 10-Q 28 Jul 22 2022 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2022	Jul. 25, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	001-36383
Entity Registrant Name	Five9, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	94-3394123
Entity Address, Address Line One	3001 Bishop Drive
Entity Address, Address Line Two	Suite 350
Entity Address, City or Town	San Ramon
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94583
City Area Code	925
Local Phone Number	201-2000
Title of 12(b) Security	Common stock, par value $0.001 per share
Trading Symbol	FIVN
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		70,102,990
Entity Central Index Key	0001288847
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Amendment Flag	false

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 101,315	$ 90,878
Marketable investments	397,067	378,980
Accounts receivable, net	82,885	83,731
Prepaid expenses and other current assets	38,464	30,342
Deferred contract acquisition costs, net	40,306	33,295
Total current assets	660,037	617,226
Property and equipment, net	99,994	77,785
Operating lease right-of-use assets	43,593	48,703
Intangible assets, net	34,015	39,897
Goodwill	165,420	165,420
Marketable investments	60,424	147,377
Other assets	11,886	11,871
Deferred contract acquisition costs, net — less current portion	101,854	84,663
Total assets	1,177,223	1,192,942
Current liabilities:
Accounts payable	25,931	20,510
Accrued and other current liabilities	56,894	78,577
Operating lease liabilities	9,836	9,826
Accrued federal fees	0	2,282
Sales tax liabilities	2,253	2,660
Deferred revenue	51,553	43,720
Convertible senior notes	187	0
Total current liabilities	146,654	157,575
Convertible senior notes — less current portion	736,485	768,599
Sales tax liabilities — less current portion	888	877
Operating lease liabilities — less current portion	42,186	47,088
Other long-term liabilities	6,108	7,671
Total liabilities	932,321	981,810
Commitments and contingencies (Note 10)
Stockholders’ equity:
Common stock	70	68
Additional paid-in capital	535,592	439,787
Accumulated other comprehensive loss	(4,534)	(287)
Accumulated deficit	(286,226)	(228,436)
Total stockholders’ equity	244,902	211,132
Total liabilities and stockholders’ equity	$ 1,177,223	$ 1,192,942

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue	$ 189,382	$ 143,782	$ 372,159	$ 281,664
Cost of revenue	88,229	64,395	177,096	124,198
Gross profit	101,153	79,387	195,063	157,466
Operating expenses:
Research and development	34,992	24,648	70,816	46,769
Sales and marketing	64,098	46,024	128,709	90,823
General and administrative	23,824	22,909	48,138	45,154
Total operating expenses	122,914	93,581	247,663	182,746
Loss from operations	(21,761)	(14,194)	(52,600)	(25,280)
Other (expense) income, net:
Interest expense	(1,857)	(2,118)	(3,727)	(4,056)
Interest income and other	280	(353)	1,125	(178)
Total other (expense) income, net	(1,577)	(2,471)	(2,602)	(4,234)
Loss before income taxes	(23,338)	(16,665)	(55,202)	(29,514)
Provision for (benefit from) income taxes	332	(135)	2,588	(652)
Net loss	$ (23,670)	$ (16,530)	$ (57,790)	$ (28,862)
Net loss per share:
Basic (in USD per share)	$ (0.34)	$ (0.25)	$ (0.83)	$ (0.43)
Diluted (in USD per share)	$ (0.34)	$ (0.25)	$ (0.83)	$ (0.43)
Shares used in computing net loss per share:
Basic (in shares)	69,748	67,292	69,363	67,008
Diluted (in shares)	69,748	67,292	69,363	67,008
Comprehensive Loss:
Net loss	$ (23,670)	$ (16,530)	$ (57,790)	$ (28,862)
Other comprehensive loss	(1,164)	(80)	(4,247)	(36)
Comprehensive loss	$ (24,834)	$ (16,610)	$ (62,037)	$ (28,898)

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	[1]	Common Stock	Additional Paid-In Capital	Additional Paid-In Capital Cumulative Effect, Period of Adoption, Adjustment	[1]	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment	[1]
Beginning balance (in shares) at Dec. 31, 2020				66,496
Beginning balance at Dec. 31, 2020	$ 279,164	$ (145,669)		$ 67	$ 476,941	$ (168,412)		$ 335	$ (198,179)	$ 22,743
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon partial conversion of the 2023 convertible senior notes (in shares)				325
Issuance of common stock upon partial conversion of the 2023 convertible senior notes	(275)				(275)
Partial unwind of capped calls and retirement of common stock related to the 2023 convertible senior notes (in shares)				(47)
Partial unwind of capped calls and retirement of common stock related to the 2023 convertible senior notes	7				7
Issuance of common stock upon exercise of stock options (in shares)				246
Issuance of common stock upon exercise of stock options	4,439				4,439
Issuance of common stock upon vesting of restricted stock units (in shares)				596
Issuance of common stock upon vesting of restricted stock units	1			$ 1
Issuance of common stock under ESPP (in shares)				68
Issuance of common stock under ESPP	8,128				8,128
Stock-based compensation	45,809				45,809
Other comprehensive loss	(36)							(36)
Net loss	(28,862)								(28,862)
Ending balance (in shares) at Jun. 30, 2021				67,684
Ending balance at Jun. 30, 2021	162,706			$ 68	366,637			299	(204,298)
Beginning balance (in shares) at Mar. 31, 2021				67,029
Beginning balance at Mar. 31, 2021	144,206			$ 67	331,528			379	(187,768)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon partial conversion of the 2023 convertible senior notes (in shares)				182
Issuance of common stock upon partial conversion of the 2023 convertible senior notes	(149)				(149)
Partial unwind of capped calls and retirement of common stock related to the 2023 convertible senior notes (in shares)				(28)
Partial unwind of capped calls and retirement of common stock related to the 2023 convertible senior notes	5				5
Issuance of common stock upon exercise of stock options (in shares)				123
Issuance of common stock upon exercise of stock options	2,224				2,224
Issuance of common stock upon vesting of restricted stock units (in shares)				310
Issuance of common stock upon vesting of restricted stock units	1			$ 1
Issuance of common stock under ESPP (in shares)				68
Issuance of common stock under ESPP	8,128				8,128
Stock-based compensation	24,901				24,901
Other comprehensive loss	(80)							(80)
Net loss	(16,530)								(16,530)
Ending balance (in shares) at Jun. 30, 2021				67,684
Ending balance at Jun. 30, 2021	162,706			$ 68	366,637			299	(204,298)
Beginning balance (in shares) at Dec. 31, 2021				68,488
Beginning balance at Dec. 31, 2021	211,132			$ 68	439,787			(287)	(228,436)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon partial conversion of the 2023 convertible senior notes (in shares)				574
Issuance of common stock upon partial conversion of the 2023 convertible senior notes	(259)				(259)
Partial unwind of capped calls and retirement of common stock related to the 2023 convertible senior notes (in shares)				(119)
Partial unwind of capped calls and retirement of common stock related to the 2023 convertible senior notes	3				3
Issuance of common stock upon exercise of stock options (in shares)				351
Issuance of common stock upon exercise of stock options	3,005			$ 1	3,004
Issuance of common stock upon vesting of restricted stock units (in shares)				699
Issuance of common stock upon vesting of restricted stock units	0			$ 1	(1)
Issuance of common stock under ESPP (in shares)				97
Issuance of common stock under ESPP	8,338				8,338
Stock-based compensation	84,720				84,720
Other comprehensive loss	(4,247)							(4,247)
Net loss	(57,790)								(57,790)
Ending balance (in shares) at Jun. 30, 2022				70,090
Ending balance at Jun. 30, 2022	244,902			$ 70	535,592			(4,534)	(286,226)
Beginning balance (in shares) at Mar. 31, 2022				69,521
Beginning balance at Mar. 31, 2022	214,359			$ 70	480,215			(3,370)	(262,556)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon partial conversion of the 2023 convertible senior notes (in shares)				34
Issuance of common stock upon partial conversion of the 2023 convertible senior notes	(15)				(15)
Partial unwind of capped calls and retirement of common stock related to the 2023 convertible senior notes (in shares)				(8)
Partial unwind of capped calls and retirement of common stock related to the 2023 convertible senior notes	1				1
Issuance of common stock upon exercise of stock options (in shares)				70
Issuance of common stock upon exercise of stock options	1,728				1,728
Issuance of common stock upon vesting of restricted stock units (in shares)				376
Issuance of common stock upon vesting of restricted stock units	(2)				(2)
Issuance of common stock under ESPP (in shares)				97
Issuance of common stock under ESPP	8,338				8,338
Stock-based compensation	45,327				45,327
Other comprehensive loss	(1,164)							(1,164)
Net loss	(23,670)								(23,670)
Ending balance (in shares) at Jun. 30, 2022				70,090
Ending balance at Jun. 30, 2022	$ 244,902			$ 70	$ 535,592			$ (4,534)	$ (286,226)
[1]Effective January 1, 2021, the Company adopted ASU 2020-06, Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity. Accordingly, the Company recorded a net reduction to opening accumulated deficit of $22.7 million and a net reduction to opening additional paid-in capital of $168.4 million as of January 1, 2021 due to the cumulative impact of adopting this new standard.

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net loss	$ (57,790)	$ (28,862)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	22,435	18,414
Amortization of operating lease right-of-use assets	4,942	4,473
Amortization of deferred contract acquisition costs	18,653	11,468
Amortization of premium on marketable investments	1,114	3,521
Provision for doubtful accounts	505	337
Stock-based compensation	84,179	45,809
Amortization of discount and issuance costs on convertible senior notes	1,852	1,959
Deferred taxes	2,054	0
Change in fair of value of contingent consideration	260	5,200
Payment of contingent consideration liability in excess of acquisition-date fair value	(5,900)	0
Other	172	226
Changes in operating assets and liabilities:
Accounts receivable	310	(5,526)
Prepaid expenses and other current assets	(8,092)	(5,962)
Deferred contract acquisition costs	(42,854)	(35,319)
Other assets	(70)	147
Accounts payable	4,487	1,725
Accrued and other current liabilities	(4,107)	23,343
Accrued federal fees and sales tax liabilities	(2,677)	1,277
Deferred revenue	7,571	(2,118)
Other liabilities	(1,423)	(14,955)
Net cash provided by operating activities	25,621	25,157
Cash flows from investing activities:
Purchases of marketable investments	(151,712)	(325,628)
Proceeds from sales of marketable investments	600	1,557
Proceeds from maturities of marketable investments	214,585	282,048
Purchases of property and equipment	(34,474)	(19,477)
Capitalization of software development costs	(1,392)	0
Cash paid for an equity investment in a privately-held company	(2,000)	0
Net cash provided by (used in) investing activities	25,607	(61,500)
Cash flows from financing activities:
Repurchase of a portion of 2023 convertible senior notes, net of costs	(34,034)	(17,622)
Proceeds from exercise of common stock options	3,005	4,439
Proceeds from sale of common stock under ESPP	8,338	8,128
Payment of contingent consideration liability up to acquisition-date fair value	(18,100)	0
Payment of holdback related to an acquisition	0	(3,200)
Payments of finance leases	0	(575)
Net cash used in financing activities	(40,791)	(8,830)
Net increase (decrease) in cash and cash equivalents	10,437	(45,173)
Cash and cash equivalents:
Beginning of period	90,878	220,372
End of period	101,315	175,199
Supplemental disclosures of cash flow data:
Cash paid for interest	1,870	1,912
Cash paid for income taxes	647	163
Non-cash investing and financing activities:
Equipment purchased and unpaid at period-end	16,141	7,818
Capitalization of leasehold improvements and furniture and fixtures through non-cash lease incentive	109	4,815
Stock-based compensation included in capitalized software development costs	$ 541	$ 0

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS’ EQUITY (Parenthetical) - USD ($) $ in Thousands		Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Adjustment to stockholders' equity		$ 244,902	$ 214,359	$ 211,132	$ 162,706	$ 144,206	$ 279,164
Accumulated Deficit
Adjustment to stockholders' equity		(286,226)	(262,556)	(228,436)	(204,298)	(187,768)	(198,179)
Additional Paid-In Capital
Adjustment to stockholders' equity		$ 535,592	$ 480,215	$ 439,787	$ 366,637	$ 331,528	476,941
Cumulative Effect, Period of Adoption, Adjustment
Adjustment to stockholders' equity	[1]						(145,669)
Cumulative Effect, Period of Adoption, Adjustment | Accumulated Deficit
Adjustment to stockholders' equity	[1]						22,743
Cumulative Effect, Period of Adoption, Adjustment | Additional Paid-In Capital
Adjustment to stockholders' equity	[1]						$ (168,412)
[1]Effective January 1, 2021, the Company adopted ASU 2020-06, Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity. Accordingly, the Company recorded a net reduction to opening accumulated deficit of $22.7 million and a net reduction to opening additional paid-in capital of $168.4 million as of January 1, 2021 due to the cumulative impact of adopting this new standard.

Description of Business and Sum

Description of Business and Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2022
Accounting Policies [Abstract]
Description of Business and Summary of Significant Accounting Policies	Description of Business and Summary of Significant Accounting Policies Five9, Inc. and its wholly-owned subsidiaries (the “Company”) is a provider of cloud software for contact centers. The Company was incorporated in Delaware in 2001 and is headquartered in San Ramon, California. The Company has offices in Europe, Asia and Australia, which primarily provide research, development, sales, marketing, and client support services. Basis of Presentation The accompanying condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021. In the opinion of management, the condensed consolidated financial statements reflect all adjustments, which are normal and recurring in nature, necessary for fair financial statement presentation. All intercompany transactions and balances have been eliminated in consolidation. Certain prior period amounts within investing activities in the condensed consolidated statements of cash flows have been reclassified to conform to the current period presentation. Use of Estimates The preparation of condensed consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. The significant estimates made by management affect revenue and related reserves, as well as the fair value of liabilities assumed through business combinations. Management periodically evaluates such estimates and they are adjusted prospectively based upon such periodic evaluation. Actual results could differ from those estimates. Significant Accounting Policies Except for the below significant accounting policy, which updates the significant accounting policies previously disclosed in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2021 as filed with the SEC on February 28, 2022, there have been no material changes from the significant accounting policies previously disclosed in Part II, Item 8, of the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2021. Internal-use software development costs The Company capitalizes certain qualifying costs incurred during the development stage of internal-use software. Costs related to preliminary project activities and post-implementation activities are expensed in research and development as incurred. Preliminary project activities include conceptual formulation, evaluation and final selection of alternatives, planning, proof of concept and requirement analysis of the selected alternative. Post-implementation stage begins when the internal-use software is ready for its intended use, and includes all internal and external training and application maintenance activities. Capitalized internal-use software costs are included within property and equipment, net on the condensed consolidated balance sheets, and are amortized over the estimated useful life of the software, which is three years. The related amortization expense is recognized in cost of revenue. Recent Accounting Pronouncements Not Yet Effective The Company has reviewed or is in the process of evaluating all issued, but not yet effective, accounting pronouncements and does not believe the future adoption of any such accounting pronouncements will cause a material impact on its condensed consolidated financial position, operating results or cash flows.

Revenue

Revenue	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Contract Balances The following table provides information about accounts receivable, net, deferred contract acquisition costs, net, contract assets and contract liabilities from contracts with customers (in thousands): June 30, 2022 December 31, 2021 Accounts receivable, net $ 82,885 $ 83,731 Deferred contract acquisition costs, net: Current $ 40,306 $ 33,295 Non-current 101,854 84,663 Total deferred contract acquisition costs, net $ 142,160 $ 117,958 Contract assets and contract liabilities: Contract assets (included in prepaid expenses and other current assets) $ 3,112 $ 2,593 Contract liabilities (deferred revenue) 51,553 43,720 Noncurrent contract liabilities (deferred revenue) (included in other long-term liabilities) 1,836 2,097 Net contract liabilities $ (50,277) $ (43,224) The Company receives payments from customers based upon billing cycles. Invoice payment terms are usually 30 days or less. Accounts receivable are recorded when the right to consideration becomes unconditional. Deferred contract acquisition costs are recorded when incurred and are amortized over an estimated customer benefit period of five years. The Company’s contract assets consist of unbilled amounts typically resulting from professional services revenue recognition when it exceeds the total amounts billed to the customer. The Company’s contract liabilities consist of advance payments and billings in excess of revenue recognized. In the three and six months ended June 30, 2022, the Company recognized revenue of $6.7 million and $33.0 million, respectively, related to its contract liabilities at December 31, 2021. Remaining Performance Obligations As of June 30, 2022, the aggregate amount of the total transaction price allocated in contracts with original duration of greater than one year to the remaining performance obligations was $713.8 million. The Company expects to recognize revenue on approximately three-fourths of the remaining performance obligations over the next 24 months, with the balance recognized thereafter. The Company has elected the optional exemption, which allows for the exclusion of the amounts for remaining performance obligations that are part of contracts with an original expected duration of one year or less. Such remaining performance obligations represent unsatisfied or partially unsatisfied performance obligations.

Investments and Fair Value Meas

Investments and Fair Value Measurements	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Investments and Fair Value Measurements	Investments and Fair Value MeasurementsMarketable Investments The Company’s marketable investments have been classified and accounted for as available-for-sale. The Company’s marketable investments as of June 30, 2022 and December 31, 2021 were as follows (in thousands): June 30, 2022 Short-Term Marketable Investments Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Certificates of deposit $ 950 $ — $ (4) $ 946 U.S. treasury 131,289 3 (1,232) 130,060 U.S. agency securities 153,324 — (1,512) 151,812 Commercial paper 18,081 — — 18,081 Municipal bonds 92,382 — (516) 91,866 Corporate bonds 4,326 — (24) 4,302 Total $ 400,352 $ 3 $ (3,288) $ 397,067 June 30, 2022 Long-term Marketable Investments Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Certificates of deposit $ 498 $ — $ (14) $ 484 U.S. treasury 24,319 — (740) 23,579 U.S. agency securities 32,286 — (888) 31,398 Municipal bonds 5,080 — (117) 4,963 Total $ 62,183 $ — $ (1,759) $ 60,424 December 31, 2021 Short-Term Marketable Investments Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Certificates of deposit $ 1,615 $ — $ — $ 1,615 U.S. treasury 83,237 — (24) 83,213 U.S. agency securities 159,070 — (65) 159,005 Commercial paper 47,555 — — 47,555 Municipal bonds 75,337 — (96) 75,241 Corporate bonds 12,355 2 (6) 12,351 Total $ 379,169 $ 2 $ (191) $ 378,980 December 31, 2021 Long-term Marketable Investments Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Certificates of deposit $ 746 $ — $ (2) $ 744 U.S. treasury 63,566 — (251) 63,315 U.S. agency securities 63,960 — (254) 63,706 Municipal bonds 18,655 — (64) 18,591 Corporate bonds 1,026 — (5) 1,021 Total $ 147,953 $ — $ (576) $ 147,377 The following table presents the gross unrealized losses and the fair value for those marketable investments that were in an unrealized loss position for less than 12 months as of June 30, 2022 and December 31, 2021 (in thousands): June 30, 2022 December 31, 2021 Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Certificates of deposit $ (18) $ 1,430 $ (2) $ 2,010 U.S. treasury (1,972) 143,721 (275) 140,527 U.S. agency securities (2,400) 181,214 (320) 222,710 Municipal bonds (633) 96,829 (160) 87,184 Corporate bonds (24) 4,302 (10) 9,428 Total $ (5,047) $ 427,496 $ (767) $ 461,859 Although the Company had certain available-for-sale debt securities in an unrealized loss position as of June 30, 2022, no impairment loss was recorded since it did not intend to sell them, did not anticipate a need to sell them, and the decline in fair value was not due to any credit-related factors. The amortized cost and fair values of the Company’s marketable investments by contractual maturity as of June 30, 2022 and December 31, 2021 were as follows (in thousands): June 30, 2022 December 31, 2021 Cost Fair Value Cost Fair Value Due within one year $ 400,352 $ 397,067 $ 379,169 $ 378,980 Due after one year 62,183 60,424 147,953 147,377 Total $ 462,535 $ 457,491 $ 527,122 $ 526,357 Fair Value Measurements The Company carries cash equivalents and marketable investments at fair value. Fair value is based on the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: Level 1 — Observable inputs, which include unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 — Observable inputs other than Level 1 inputs, such as quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 — Unobservable inputs that are supported by little or no market activity and that are based on management’s assumptions, including fair value measurements determined by using pricing models, discounted cash flow methodologies or similar techniques. The Company determined the fair value of its Level 1 financial instruments, which are traded in active markets, using quoted market prices for identical instruments. Marketable investments classified within Level 2 of the fair value hierarchy are valued based on other observable inputs, including broker or dealer quotations or alternative pricing sources. When quoted prices in active markets for identical assets or liabilities are not available, the Company relies on non-binding quotes from its investment managers, which are based on proprietary valuation models of independent pricing services. These models generally use inputs such as observable market data, quoted market prices for similar instruments, historical pricing trends of a security as relative to its peers. To validate the fair value determination provided by its investment managers, the Company reviews the pricing movement in the context of overall market trends and trading information from its investment managers. The Company performs routine procedures such as comparing prices obtained from independent source to ensure that appropriate fair values are recorded. The following tables set forth the Company’s assets measured at fair value by level within the fair value hierarchy (in thousands): June 30, 2022 Level 1 Level 2 Level 3 Total Assets Cash equivalents Money market funds $ 28,820 $ — $ — $ 28,820 U.S. agency securities and government sponsored securities — 649 — 649 Total cash equivalents $ 28,820 $ 649 $ — $ 29,469 Marketable investments (short and long term) Certificates of deposit $ — $ 1,430 $ — $ 1,430 U.S. treasury 153,639 — — 153,639 U.S. agency securities and government sponsored securities — 183,210 — 183,210 Commercial paper — 18,081 — 18,081 Municipal bonds — 96,829 — 96,829 Corporate bonds — 4,302 — 4,302 Total marketable investments $ 153,639 $ 303,852 $ — $ 457,491 December 31, 2021 Level 1 Level 2 Level 3 Total Assets Cash equivalents Money market funds $ 31,380 $ — $ — $ 31,380 Certificates of deposit — 747 — 747 Total cash equivalents $ 31,380 $ 747 $ — $ 32,127 Marketable investments (short and long-term) Certificates of deposit $ — $ 2,359 $ — $ 2,359 U.S. treasury 146,528 — — 146,528 U.S. agency and government sponsored securities — 222,711 — 222,711 Commercial paper — 47,555 — 47,555 Municipal bonds — 93,832 — 93,832 Corporate bonds — 13,372 — 13,372 Total marketable investments $ 146,528 $ 379,829 $ — $ 526,357 Liabilities Contingent consideration $ — $ — $ 23,740 $ 23,740 As of June 30, 2022 and December 31, 2021, the estimated fair value of the Company’s outstanding 2023 convertible senior notes was $0.4 million and $114.9 million, respectively. As of June 30, 2022 and December 31, 2021, the estimated fair value of the Company's outstanding 2025 convertible senior notes was $732.4 million and $917.3 million, respectively. The fair values were determined based on the quoted price of the convertible senior notes in an inactive market on the last trading day of the reporting period and have been classified as Level 2 in the fair value hierarchy. See Note 6 for further information on the Company’s convertible senior notes. As part of the agreement to acquire Inference Solutions Inc. ("Inference") in November 2020, the Company was obligated to pay contingent earn out consideration of up to $24.0 million based upon achievement of certain milestones and relative thresholds during the earn out measurement period which ended on December 31, 2021. The fair value of the contingent consideration arrangement was classified within Level 3 and was determined using a probability-based scenario analysis approach. The resulting probability-weighted contingent consideration amounts were discounted based on the Company’s estimated cost of debt. During the three months ended March 31, 2022, the Company concluded that the final contingent consideration amount was $24.0 million and recognized an additional $0.3 million of contingent consideration expense to adjust the fair value from $23.7 million at December 31, 2021 to $24.0 million at March 31, 2022. The Company paid the $24.0 million contingent consideration amount in April 2022. A reconciliation of the beginning and ending balance for contingent consideration consisted of the following (in thousands): Six Months Ended June 30, 2022 Balance, beginning of period $ 23,740 Change in fair value of contingent consideration 260 Less: payment (24,000) Balance, end of period $ — In February 2022, the Company made a $2.0 million equity investment in a privately-held company that it does not have the ability to exercise significant influence over. The Company elected the measurement alternative for an equity security without a readily determinable fair value. Accordingly, this investment will be accounted for at its cost minus impairment, if any, and is classified within Level 3. If the Company identifies observable price changes in orderly transactions for such investment or a similar investment, it will measure the investment at fair value as of the date that the observable transaction or events occurred. Except for the $2.0 million equity investment described above, there were no assets or liabilities measured at fair value on a non-recurring basis as of June 30, 2022 and December 31, 2021. The fair value of the Company’s other financial instruments’, including accounts receivable, accounts payable and other current liabilities, approximate their carrying value due to the relatively short maturity of those instruments. The carrying amounts of the Company’s operating leases approximate their fair value, which is the present value of expected future cash payments based on assumptions about current interest rates and the creditworthiness of the Company.

Financial Statement Components

Financial Statement Components	6 Months Ended
	Jun. 30, 2022
Financial Statement Components [Abstract]
Financial Statement Components	Financial Statement Components Cash and cash equivalents consisted of the following (in thousands): June 30, 2022 December 31, 2021 Cash $ 71,846 $ 58,751 Certificates of deposit — 747 Money market funds 28,820 31,380 U.S. agency securities 649 — Total cash and cash equivalents $ 101,315 $ 90,878 Accounts receivable, net consisted of the following (in thousands): June 30, 2022 December 31, 2021 Trade accounts receivable $ 71,376 $ 75,970 Unbilled trade accounts receivable, net of advance client deposits 11,744 7,981 Allowance for doubtful accounts (235) (220) Accounts receivable, net $ 82,885 $ 83,731 Prepaid expenses and other current assets consisted of the following (in thousands): June 30, 2022 December 31, 2021 Prepaid expenses $ 28,914 $ 21,306 Other current assets 6,438 6,443 Contract assets 3,112 2,593 Prepaid expenses and other current assets $ 38,464 $ 30,342 Property and equipment, net consisted of the following (in thousands): June 30, 2022 December 31, 2021 Computer and network equipment $ 147,879 $ 116,701 Computer software 48,209 44,268 Internal-use software development costs 2,433 500 Furniture and fixtures 3,993 3,953 Leasehold improvements 6,069 5,914 Property and equipment 208,583 171,336 Accumulated depreciation and amortization (108,589) (93,551) Property and equipment, net $ 99,994 $ 77,785 Depreciation and amortization expense associated with property and equipment was $8.7 million and $16.6 million for the three and six months ended June 30, 2022, respectively. Depreciation and amortization expense associated with property and equipment was $6.7 million and $12.5 million for the three and six months ended June 30, 2021, respectively. Property and equipment capitalized under finance lease obligations consists primarily of computer and network equipment and was as follows (in thousands): June 30, 2022 December 31, 2021 Gross $ 42,504 $ 42,541 Less: accumulated depreciation and amortization (42,194) (41,689) Total $ 310 $ 852 Other assets consisted of the following (in thousands): June 30, 2022 December 31, 2021 Other assets $ 5,033 $ 4,964 Equity investment 2,000 — Deferred tax assets 4,853 6,907 Total $ 11,886 $ 11,871 Accrued and other current liabilities consisted of the following (in thousands): June 30, 2022 December 31, 2021 Accrued expenses $ 18,784 $ 20,108 Accrued compensation and benefits 38,110 34,729 Contingent consideration — 23,740 Accrued and other current liabilities $ 56,894 $ 78,577 Other long-term liabilities consisted of the following (in thousands): June 30, 2022 December 31, 2021 Deferred revenue $ 1,836 $ 2,097 Other long-term liabilities 4,272 5,574 Other long-term liabilities $ 6,108 $ 7,671

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill There was no activity in the Company's goodwill balance during the six months ended June 30, 2022. Intangible Assets The following table summarizes the activity in the Company's intangible assets balance during the three and six months ended June 30, 2022 (in thousands): Three Months Ended June 30, 2022 Six Months Ended June 30, 2022 Beginning of the period $ 36,950 $ 39,897 Amortization (2,935) (5,882) End of the period $ 34,015 $ 34,015 The components of intangible assets were as follows (in thousands): June 30, 2022 December 31, 2021 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Amortization period (Years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Amortization period (Years) Developed technology $ 56,214 $ (23,352) $ 32,862 3.6 $ 56,214 $ (17,821) $ 38,393 4.0 Acquired workforce 470 (412) 58 0.4 470 (334) 136 0.9 Customer relationships 1,600 (581) 1,019 3.2 1,600 (421) 1,179 3.7 Trademarks 500 (424) 76 0.4 500 (311) 189 0.9 Total $ 58,784 $ (24,769) $ 34,015 3.6 $ 58,784 $ (18,887) $ 39,897 4.0 Amortization expense for intangible assets was $2.9 million and $5.9 million during the three and six months ended June 30, 2022, respectively. Amortization expense for intangible assets was $2.9 million and $5.9 million during the three and six months ended June 30, 2021, respectively. As of June 30, 2022, the expected future amortization expense for intangible assets was as follows (in thousands): Period Expected Future Amortization Expense Remaining 2022 $ 5,823 2023 10,870 2024 7,527 2025 5,595 2026 4,200 Thereafter — Total $ 34,015

Debt

Debt	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Debt	Debt 2025 Convertible Senior Notes and Related Capped Call Transactions In May and June 2020, the Company issued $747.5 million aggregate principal amount of 2025 convertible senior notes in a private offering, which aggregate principal amount included the exercise in full of the initial purchasers’ option to purchase up to an additional $97.5 million principal amount of the 2025 convertible senior notes. The 2025 convertible senior notes mature on June 1, 2025 and bear interest at a fixed rate of 0.500% per annum, payable semiannually in arrears on June 1 and December 1 of each year, beginning on December 1, 2020. Each $1,000 principal amount of the 2025 convertible senior notes is initially convertible into 7.4437 shares of the Company’s common stock (the “2025 Conversion Option”), which is equivalent to an initial conversion price of approximately $134.34 per share of common stock, subject to adjustment upon the occurrence of specified events. The initial conversion price represents a premium of approximately 30% to the $103.34 per share closing price of the Company’s common stock on The Nasdaq Global Market on May 21, 2020. The 2025 convertible senior notes are convertible, in multiples of $1,000 principal amount, at the option of the holders prior to the close of business on the business day immediately preceding March 1, 2025, only under the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ending on September 30, 2020 (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 on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “2025 Measurement Period”) in which the trading price (as defined in the 2025 Indenture governing the 2025 convertible senior notes) per $1,000 principal amount of the 2025 convertible senior notes for each trading day of the 2025 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 in effect on each such trading day; (3) if the Company calls any or all of the 2025 convertible senior notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. On or after March 1, 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 2025 convertible senior notes, in multiples of $1,000 principal amount, at the option of the holder regardless of the foregoing circumstances. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of the Company’s common stock or a combination of cash and shares of the Company’s common stock, at the Company’s election. If the Company undergoes a fundamental change (as defined in the indenture governing the 2025 convertible senior notes), subject to certain conditions, holders may require the Company to repurchase for cash all or any portion of their 2025 convertible senior notes, in principal amounts of $1,000 or a multiple thereof, at a fundamental change repurchase price equal to 100% of the principal amount of the 2025 convertible senior notes to be repurchased, plus accrued and unpaid interest, if any, to, but excluding, the fundamental change repurchase date. In addition, following certain corporate events or if the Company issues a notice of redemption, it will, under certain circumstances, increase the conversion rate for holders who elect to convert their notes in connection with such corporate event or during the relevant redemption period. There have been no changes to the initial conversion price of the 2025 convertible senior notes since issuance. The closing market price of the Company's common stock of $91.14 per share on June 30, 2022, the last trading day during the three months ended June 30, 2022, was below $174.64 per share, which represents 130% of the initial conversion price of $134.34 per share. Additionally, 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, June 30, 2022, was not greater than or equal to 130% of the initial conversion price. As such, during the three months ended June 30, 2022, the conditions allowing holders of the 2025 convertible senior notes to convert were not met. The 2025 convertible senior notes are therefore not convertible during the three months ending September 30, 2022. The Company may not redeem the 2025 convertible senior notes prior to June 6, 2023. The Company may redeem for cash all or any portion of the 2025 convertible senior notes, at its option, on or after June 6, 2023 and prior to March 1, 2025 if the last reported sale price of its 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 not more than two trading days 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 2025 convertible senior notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. No sinking fund is provided for the 2025 convertible senior notes. The 2025 convertible senior notes are the Company’s senior unsecured obligations and rank senior in right of payment to any of the Company’s indebtedness that is expressly subordinated in right of payment to the 2025 convertible senior notes; equal in right of payment to any of the Company’s unsecured indebtedness that is not so subordinated (including the 2023 convertible senior notes); effectively junior in right of payment to any of the Company’s secured indebtedness to the extent of the value of the assets securing such indebtedness; and structurally junior to all indebtedness and other liabilities (including trade payables) of the Company’s subsidiaries. The net carrying amount of the 2025 convertible senior notes as of June 30, 2022 and as of December 31, 2021 was as follows (in thousands): June 30, 2022 December 31, 2021 Principal $ 747,500 $ 747,500 Unamortized issuance costs (11,015) (12,835) Net carrying amount $ 736,485 $ 734,665 Interest expense related to the 2025 convertible senior notes was as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Contractual interest expense $ 934 $ 1,121 $ 1,869 $ 2,055 Amortization of issuance costs 922 912 1,821 1,802 Total interest expense $ 1,856 $ 2,033 $ 3,690 $ 3,857 In connection with the issuance of the 2025 convertible senior notes, the Company entered into privately negotiated capped call transactions (the “2025 Capped Call Transactions”) with certain financial institutions. The initial cap price of the 2025 Capped Call Transactions was $206.68 per share and is subject to certain adjustments under the terms of the 2025 Capped Call Transactions. The 2025 Capped Call Transactions cover, subject to anti-dilution adjustments, approximately 5.6 million shares of the Company’s common stock. Maturity of the Company’s 2025 convertible senior notes as of June 30, 2022 was as follows (in thousands): Period Amount to Mature 2025 (Maturity date of June 1, 2025) $ 747,500 Total $ 747,500 2023 Convertible Senior Notes and Related Capped Call Transactions In May 2018, the Company issued $258.8 million aggregate principal amount of the 2023 convertible senior notes in a private offering. The 2023 convertible senior notes mature on May 1, 2023 and bear interest at a fixed rate of 0.125% per annum, payable semiannually in arrears on May 1 and November 1 of each year. In May 2020, the Company used part of the net proceeds from the issuance of the 2025 convertible senior notes to repurchase, exchange or otherwise retire approximately $181.0 million aggregate principal amount of the 2023 convertible senior notes in privately-negotiated transactions for aggregate consideration of $449.6 million, consisting of $181.0 million in cash and 2,723,581 shares of the Company’s common stock (the "2023 Note Repurchase Transactions"). As of June 30, 2022, after giving effect to the 2023 Note Repurchase Transactions and other settlements upon conversion requests, approximately $0.2 million aggregate principal amount of 2023 convertible senior notes remained outstanding. Each $1,000 principal amount of the 2023 convertible senior notes was initially convertible into 24.4978 shares of the Company’s common stock (the “2023 Conversion Option”), which is equivalent to an initial conversion price of approximately $40.82 per share of common stock, subject to adjustment upon the occurrence of specified events. The 2023 convertible senior notes are convertible, in multiples of $1,000 principal amount, at the option of the holders at any time prior to the close of business on the business day immediately preceding November 1, 2022, only under the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ended on September 30, 2018 (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 on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “2023 Measurement Period”) in which the trading price (as defined in the indenture governing the 2023 convertible senior notes) per $1,000 principal amount of the 2023 convertible senior notes for each trading day of the 2023 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 in effect on each such trading day; (3) if the Company calls any or all of the 2023 convertible senior notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. On or after November 1, 2022 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 2023 convertible senior notes, in multiples of $1,000 principal amount, at the option of the holder regardless of the foregoing circumstances. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of the Company’s common stock or a combination of cash and shares of the Company’s common stock, at the Company’s election. If the Company undergoes a fundamental change (as defined in the indenture governing the 2023 convertible senior notes), subject to certain conditions, holders may require the Company to repurchase for cash all or any portion of their 2023 convertible senior notes, in principal amounts of $1,000 or a multiple thereof, at a fundamental change repurchase price equal to 100% of the principal amount of the 2023 convertible senior notes to be repurchased, plus accrued and unpaid interest, if any, to, but excluding, the fundamental change repurchase date. In addition, following certain corporate events that occur prior to the maturity date or if the Company issues a notice of redemption, it will, under certain circumstances, increase the conversion rate for holders who elect to convert their 2023 convertible senior notes in connection with such corporate event or during the relevant redemption period. There have been no changes to the initial conversion price of the 2023 convertible senior notes since issuance. During each of the quarters from the third quarter of 2019 through the second quarter of 2022, one of the triggers for convertibility of the 2023 convertible senior notes was triggered as the last reported sale price of the Company’s common stock was greater than $53.07 per share, which represents 130% of the initial conversion price of $40.82 per share, for at least 20 trading days in the period of 30 consecutive trading days ended on, and including, the last trading day of the quarter for each quarter of 2020 and 2021 and for the first two quarters of 2022. As a result, the 2023 convertible senior notes were convertible, in multiples of $1,000 principal amount, at the option of the 2023 convertible senior note holders between October 1, 2019 to June 30, 2022, and are also currently convertible between July 1, 2022 to September 30, 2022. Whether the 2023 convertible senior notes will be convertible after September 30, 2022 will depend on the continued satisfaction of this condition or other conversion conditions in the future. During the six months ended June 30, 2022, the Company paid $34.0 million in cash and issued 573,633 shares of its common stock to settle aggregate principal amount of $34.0 million of its 2023 convertible senior notes. As of June 30, 2022, approximately $0.2 million aggregate principal amount of the Company's 2023 convertible senior notes remained outstanding. The conversions that occurred during the six months ended June 30, 2022 were subject to ASU 2020-06 and such conversions were accounted for as contractual conversions, which did not result in any gain or loss upon their settlement. During the six months ended June 30, 2022, the Company received 119,492 shares from the partial unwind of capped calls resulting from the settlement of its 2023 convertible senior notes. The receipt of the shares reduced the number of shares of common stock outstanding. In addition, on or prior to June 30, 2022, the Company received elections to convert aggregate principal amount of $0.1 million of its 2023 convertible senior notes that remain unsettled as of the end of the second quarter of 2022. The Company expects to settle these conversions in cash or a combination of cash and shares during the third quarter of 2022. The Company has the option to settle any future election conversion notices in cash, shares, or a combination of cash and shares. The 2023 convertible senior notes are the Company’s senior unsecured obligations and rank senior in right of payment to any of the Company’s indebtedness that is expressly subordinated in right of payment to the 2023 convertible senior notes; equal in right of payment to any of the Company’s unsecured indebtedness that is not so subordinated (including the 2025 convertible senior notes); effectively junior in right of payment to any of the Company’s secured indebtedness to the extent of the value of the assets securing such indebtedness; and structurally junior to all indebtedness and other liabilities (including trade payables) of the Company’s subsidiaries. The net carrying amount of the 2023 convertible senior notes as of June 30, 2022 and as of December 31, 2021 was as follows (in thousands): June 30, 2022 December 31, 2021 Principal $ 188 $ 34,225 Unamortized issuance costs (1) (291) Net carrying amount $ 187 $ 33,934 Interest expense related to the 2023 convertible senior notes was as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Contractual interest expense $ — $ 6 $ 6 $ 23 Amortization of issuance costs — 73 31 157 Total interest expense $ — $ 79 $ 37 $ 180 In connection with the issuance of the 2023 convertible senior notes, the Company entered into privately negotiated capped call transactions (the “2023 Capped Call Transactions”) with certain financial institutions. The initial cap price of the 2023 Capped Call Transactions was $62.80 per share, and is subject to certain adjustments under the terms of the 2023 Capped Call Transactions. The 2023 Capped Call Transactions cover, subject to anti-dilution adjustments, approximately 6.3 million shares of the Company’s common stock. Maturity of the Company’s 2023 convertible senior notes as of June 30, 2022 was as follows (in thousands): Period Amount to Mature 2023 (Maturity date of May 1, 2023) $ 188 Total $ 188 See Note 6 of the notes to consolidated financial statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021 filed with the Securities and Exchange Commission on February 28, 2022 for further description of the convertible senior notes. Adoption of ASU 2020-06 On January 1, 2021, the Company elected to early adopt ASU 2020-06 based on a modified retrospective transition method. Under such transition, prior-period information was not retrospectively adjusted. Prior to the adoption of ASU 2020-06, the 2025 and 2023 convertible senior notes were separated into liability and equity components. The carrying amount of the liability component was calculated by measuring the fair value of a similar debt instrument that does not have an associated conversion feature. The equity component was recorded in additional paid-in-capital and was not re-measured as long as it continued to meet the conditions for equity classification. The excess of the principal amount of the liability component over its carrying amount (the “Debt Discount”) was amortized to interest expense over the contractual term of the 2025 and 2023 convertible senior notes at an effective interest rate of 5.76% and 6.39%, respectively. Prior to the adoption of ASU 2020-06, the debt issuance costs related to the 2025 and 2023 convertible senior notes were allocated to the liability and equity components based on their relative values. Issuance costs attributable to the liability component were amortized to interest expense using the effective interest method over the contractual term of the 2025 and 2023 convertible senior notes. Issuance costs attributable to the equity component were netted with the equity component in additional paid-in-capital. In accounting for the 2025 and 2023 convertible senior notes after adoption of ASU 2020-06, the 2025 convertible senior notes are accounted for as a single liability, and the issuance costs related to the 2025 and 2023 convertible senior notes are being amortized to interest expense over the contractual term at an effective interest rate of 1.0% and 0.76%, respectively.

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Stockholders' Equity	Stockholders’ Equity Capital Structure Common Stock The Company is authorized to issue 450,000,000 shares of common stock with a par value of $0.001 per share. As of June 30, 2022 and December 31, 2021, the Company had 70,090,027 and 68,488,337 shares of common stock issued and outstanding, respectively. During the three and six months ended June 30, 2022, the Company issued 33,503 shares and 573,633 shares, respectively, of common stock in connection with 2023 convertible senior note settlements. During the three and six months ended June 30, 2022, the Company also received 8,076 shares and 119,492 shares, respectively, from the partial unwind of capped calls resulting from the settlement of its 2023 convertible senior notes. The receipt of the 8,076 shares and 119,492 shares during the three and six months ended June 30, 2022 reduced the number of shares of common stock outstanding. Preferred Stock The Company is authorized to designate and issue up to 5,000,000 shares of preferred stock with a par value of $0.001 per share in one or more series without stockholder approval and to fix the rights, preferences, privileges and restrictions thereof. As of June 30, 2022 and December 31, 2021, there were no shares of preferred stock issued and outstanding. Common Stock Reserved for Future Issuance Shares of common stock reserved for future issuance related to outstanding equity awards and employee equity incentive plans were as follows (in thousands): June 30, 2022 Stock options outstanding 1,698 RSUs (including PRSUs) outstanding 3,111 Shares available for future grant under 2014 Plan 15,484 Shares available for future issuance under ESPP 3,664 Total shares of common stock reserved 23,957 Stock Options A summary of the Company’s stock option activity during the six months ended June 30, 2022 is as follows (in thousands, except years and per share data): Number of Weighted Weighted Aggregate Outstanding as of December 31, 2021 1,982 $ 38.65 Options granted (weighted average grant date fair value of $54.84 per share) 81 110.55 Options exercised (351) 8.55 Options forfeited or expired (14) 116.87 Outstanding as of June 30, 2022 1,698 $ 47.68 2.4 $ 90,323 The aggregate intrinsic value amounts are computed based on the difference between the exercise price of the stock options and the fair market value of the Company’s common stock of $91.14 per share as of June 30, 2022 for all in-the-money stock options outstanding. Restricted Stock Units (including Performance-Based Restricted Stock Units) A summary of the Company’s restricted stock unit ("RSU"), activity during the six months ended June 30, 2022 is as follows (in thousands, except per share data): Number of Shares Weighted Average Grant Date Fair Value Per Share Outstanding as of December 31, 2021 2,560 $ 125.65 RSUs granted (1) 1,392 110.97 RSUs vested and released (699) 110.68 RSUs forfeited or canceled (142) 124.59 Outstanding as of June 30, 2022 3,111 121.84 (1) Includes 120,346 PRSUs granted during the six months ended June 30, 2022. Performance-Based Restricted Stock Units In February 2022, the Company granted 59,383 performance-based restricted stock units (“PRSUs”), which are subject to market and service conditions and have a weighted average grant date fair value of $8.3 million as part of its annual grant of equity incentive awards to certain executives. The amount that may be earned pursuant to the PRSUs ranges from 0% to 200% of the target number based on the Company’s relative total shareholder return (“RTSR”) performance as compared to the companies in the S&P Software and Services Select Index during three one-year performance periods consisting of the Company’s 2022, 2023 and 2024 fiscal years. One-third of the total PRSUs may be earned and settled in shares following the end of each one-year performance period based on RTSR performance and subject to continued employment through the payment date, but the amount initially paid for 2022 and 2023 is limited to 100% of the target amount for the year, and any PRSUs resulting from above-target performance in those years will be paid following the end of 2024, subject to the executive’s continued employment through the payment date. If the Company’s absolute total shareholder return for any performance period is negative, then no more than 100% of the target amount of PRSUs for such period may be earned. If an executive's employment with the Company terminates before the end of 2024 due to death or disability, 100% (if due to death) or 50% (if due to disability) of the unvested PRSUs may be earned subject to ultimate RTSR performance in each remaining performance period. Upon a qualifying termination of employment in connection with a change in control of the Company, the unvested PRSUs will vest on a double-trigger basis at the target level. The fair value of the PRSUs are determined on their grant date using a Monte Carlo Simulation model based upon assumptions presented below. The Company recognizes the fair value of the PRSUs ratably over their requisite service period. In June 2022, the Company granted 60,963 shares of PRSUs, subject to performance and service conditions, with a grant date fair value of $6.3 million as a retention award to an executive. The amount of PRSUs that may be earned will be determined based on achievement of two quarterly revenue goals, which can be achieved through the fourth fiscal quarter of 2023. One third of the PRSUs may be earned based on achievement of the first revenue target and, if achieved, will vest in four quarterly installments, with the first installment occurring on the date such achievement is certified, subject to the executive's continuous service through the applicable vesting dates. Two thirds of the PRSUs may be earned based on achievement of the second revenue target and, if achieved, will vest in eight quarterly installments, with the first installment occurring on the date such achievement is certified, subject to the executive's continuous service through the applicable vesting dates. The PRSUs are otherwise on the Company's standard award terms from the February 2022 PRSU grants. The Company began recognizing the fair value of these PRSUs ratably over the requisite service period since it concluded that the performance conditions were probable of achievement at June 30, 2022. The Company will reassess the probability of the achievement of the performance conditions at each reporting period and a cumulative catch-up adjustment will be recorded to stock-based compensation cost for any change in the probability assessment. Stock-Based Compensation Stock-based compensation expense was as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Cost of revenue $ 8,538 $ 3,781 $ 16,330 $ 6,886 Research and development 11,818 6,152 21,963 10,915 Sales and marketing 14,963 8,208 28,387 14,979 General and administrative 9,467 6,760 17,499 13,029 Total stock-based compensation expense 44,786 24,901 84,179 45,809 As of June 30, 2022, unrecognized stock-based compensation expense by award type and their expected weighted-average recognition periods are summarized in the following table (in thousands, except years). Stock Option RSU PRSU ESPP Unrecognized stock-based compensation expense $ 19,422 $ 344,075 $ 12,906 $ 1,635 Weighted-average amortization period 2.4 years 2.6 years 2.1 years 0.4 years The weighted-average assumptions used to value stock options and PRSUs with market conditions granted during the periods presented were as follows: Stock Options Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Expected term (years) 6.0 6.0 6.0 6.0 Volatility 47 % 47.0 % 46 % 47 % Risk-free interest rate 3.0 % 1.0 % 1.8 % 1.1 % Dividend yield (1) — — — — PRSUs (Market Conditions) Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Closing price of common stock as of grant date (February 28, 2022) — — $110.00 — Expected term (years) — — 2.84 — Volatility — — 48.8 % — Risk-free interest rate — — 1.6 % — Dividend yield (1) — — — — (1) The Company has not paid, and does not anticipate paying, cash dividends on its shares of common stock. Accordingly, the expected dividend yield is zero.

Net Loss Per Share

Net Loss Per Share	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per ShareBasic net loss per share is calculated by dividing net loss by the weighted average number of shares of common stock outstanding during the period, and excludes any dilutive effects of employee stock-based awards and potential shares upon conversion of the convertible senior notes. Diluted net loss per share is computed giving effect to all potentially dilutive shares of common stock, including common stock issuable upon exercise of stock options, vesting of RSUs and PRSUs, and shares of common stock issuable upon conversion of convertible senior notes. As the Company had net losses for the three and six months ended June 30, 2022 and 2021, all potentially issuable shares of common stock were determined to be anti-dilutive. The following table presents the calculation of basic and diluted net loss per share (in thousands, except per share data): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Net loss $ (23,670) $ (16,530) $ (57,790) $ (28,862) Weighted-average shares used in computing basic and diluted net loss per share 69,748 67,292 69,363 67,008 Basic and diluted net loss per share $ (0.34) $ (0.25) $ (0.83) $ (0.43) The following securities were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Stock options 1,698 2,129 1,698 2,129 RSUs (includes PRSUs) 3,111 2,273 3,111 2,273 Convertible senior notes 5,571 6,708 5,804 6,796 Total 10,380 11,110 10,613 11,198

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes for the three and six months ended June 30, 2022 was approximately $0.3 million and $2.6 million, respectively. The benefit from income taxes for the three and six months ended June 30, 2021 was approximately $(0.1) million and $(0.7) million, respectively. The provision for income taxes for the three and six months ended June 30, 2022 consisted primarily of foreign deferred income tax expense from the intercompany sale of the Company's Australian intellectual property to the United States and foreign current income tax expense. The benefit from income taxes for the three and six months ended June 30, 2021 consisted primarily of a foreign income tax benefit offset by domestic state minimum taxes. For the three and six months ended June 30, 2022, the provision for income taxes differed from the statutory amount primarily due to foreign income taxes and the Company realizing no benefit for current year domestic losses due to maintaining a full valuation allowance against its domestic net deferred tax assets. For the three and six months ended June 30, 2021, the benefit from income taxes differed from the statutory amount primarily due to state and foreign income taxes and the Company realizing no benefit for current year domestic losses due to maintaining a full valuation allowance against its domestic net deferred tax assets. The realization of tax benefits of deferred tax assets is dependent upon future levels of taxable income, of an appropriate character, in the periods the items are expected to be deductible or taxable. Based on the available objective evidence, the Company does not believe it is more likely than not that the net deferred tax assets will be realizable. Accordingly, the Company has provided a full valuation allowance against the domestic net deferred tax assets as of June 30, 2022 and December 31, 2021. The Company intends to maintain the remaining valuation allowance until sufficient positive evidence exists to support a reversal of, or decrease in, the valuation allowance. During the three and six months ended June 30, 2022, there were no material changes to the total amount of unrecognized tax benefits.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Commitments The Company’s principal commitments consist of future payment obligations under its convertible senior notes, operating leases for office facilities, cloud services agreements, and agreements with third parties to provide co-location hosting, telecommunication usage and equipment maintenance services. These commitments as of December 31, 2021 are disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021, and did not change materially during the six months ended June 30, 2022, except for certain hosting and telecommunications agreements, cloud service agreements, the convertible senior notes, and the operating leases described in Note 12. As of June 30, 2022, the Company’s commitment under various hosting and telecommunications agreements totaled $18.8 million for terms ranging up to 48 months. These agreements require the Company to make monthly payments over the service term in exchange for certain network services. As of June 30, 2022, the Company had outstanding cloud service agreement commitments totaling $50.5 million, of which $9.5 million is expected to be paid in the remainder of 2022 and the remaining $41.0 million in 2023. As of June 30, 2022, $747.7 million of aggregate principal of the convertible senior notes were outstanding. The 2023 convertible senior notes and the 2025 convertible senior notes are due on May 1, 2023 and June 1, 2025, respectively. See Note 6 for more information concerning the convertible senior notes. Legal Matters The Company is involved in various legal and regulatory matters arising in the normal course of business. In management’s opinion, resolution of these matters is not expected to have a material impact on the Company’s consolidated results of operations, cash flows, or its financial position. However, due to the uncertain nature of legal matters, an unfavorable resolution of a matter could materially affect the Company’s future consolidated results of operations, cash flows or financial position in a particular period. The Company expenses legal fees as incurred. Indemnification Agreements

Geographical Information

Geographical Information	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
Geographical Information	Geographical Information The following table summarizes revenues by geographic region based on client billing address (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 United States $ 170,984 $ 131,257 $ 338,231 $ 257,143 International 18,398 12,525 33,928 24,521 Total revenue $ 189,382 $ 143,782 $ 372,159 $ 281,664 The following table summarizes total property and equipment, net in the respective locations (in thousands): June 30, 2022 December 31, 2021 United States $ 92,448 $ 68,674 International 7,546 9,111 Property and equipment, net $ 99,994 $ 77,785

Leases

Leases	6 Months Ended
	Jun. 30, 2022
Leases [Abstract]
Leases	Leases The Company has leases for offices, data centers and computer and networking equipment that expire at various dates through 2031. The Company’s leases have remaining terms of one three The components of lease expenses were as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Operating lease cost $ 2,869 $ 2,517 $ 5,769 $ 5,185 Finance lease cost: Amortization of right-of-use assets $ 135 $ 544 $ 468 $ 1,261 Interest on finance lease liabilities — 5 — 18 Total finance lease cost $ 135 $ 549 $ 468 $ 1,279 Supplemental cash flow information related to leases was as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash used in operating leases $ (2,829) $ (1,370) $ (5,538) $ (3,408) Financing cash used in finance leases — (119) — (575) Right of use assets obtained in exchange for lease obligations: Operating leases 264 4,090 584 42,429 Finance leases — — — — Supplemental balance sheet information related to leases was as follows (in thousands): June 30, 2022 December 31, 2021 Operating leases Operating lease right-of-use assets $ 43,593 $ 48,703 Operating lease liabilities $ 9,836 $ 9,826 Operating lease liabilities — less current portion 42,186 47,088 Total operating lease liabilities $ 52,022 $ 56,914 Finance leases Property and equipment, gross $ 42,504 $ 42,541 Less: accumulated depreciation and amortization (42,194) (41,689) Property and equipment, net $ 310 $ 852 Weighted average remaining terms were as follows (in years): June 30, 2022 December 31, 2021 Weighted average remaining lease term Operating leases 7.0 7.3 Weighted average discount rates were as follows: June 30, 2022 December 31, 2021 Weighted average discount rate Operating leases 3.2 % 3.2 % Maturities of lease liabilities were as follows (in thousands): Year Ending December 31, Operating Leases Remaining 2022 $ 5,917 2023 10,458 2024 7,723 2025 5,584 2026 5,716 Thereafter 22,829 Total future minimum lease payments 58,227 Less: imputed interest (6,205) Total $ 52,022 two
Leases	Leases The Company has leases for offices, data centers and computer and networking equipment that expire at various dates through 2031. The Company’s leases have remaining terms of one three The components of lease expenses were as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Operating lease cost $ 2,869 $ 2,517 $ 5,769 $ 5,185 Finance lease cost: Amortization of right-of-use assets $ 135 $ 544 $ 468 $ 1,261 Interest on finance lease liabilities — 5 — 18 Total finance lease cost $ 135 $ 549 $ 468 $ 1,279 Supplemental cash flow information related to leases was as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash used in operating leases $ (2,829) $ (1,370) $ (5,538) $ (3,408) Financing cash used in finance leases — (119) — (575) Right of use assets obtained in exchange for lease obligations: Operating leases 264 4,090 584 42,429 Finance leases — — — — Supplemental balance sheet information related to leases was as follows (in thousands): June 30, 2022 December 31, 2021 Operating leases Operating lease right-of-use assets $ 43,593 $ 48,703 Operating lease liabilities $ 9,836 $ 9,826 Operating lease liabilities — less current portion 42,186 47,088 Total operating lease liabilities $ 52,022 $ 56,914 Finance leases Property and equipment, gross $ 42,504 $ 42,541 Less: accumulated depreciation and amortization (42,194) (41,689) Property and equipment, net $ 310 $ 852 Weighted average remaining terms were as follows (in years): June 30, 2022 December 31, 2021 Weighted average remaining lease term Operating leases 7.0 7.3 Weighted average discount rates were as follows: June 30, 2022 December 31, 2021 Weighted average discount rate Operating leases 3.2 % 3.2 % Maturities of lease liabilities were as follows (in thousands): Year Ending December 31, Operating Leases Remaining 2022 $ 5,917 2023 10,458 2024 7,723 2025 5,584 2026 5,716 Thereafter 22,829 Total future minimum lease payments 58,227 Less: imputed interest (6,205) Total $ 52,022 two

Description of Business and S_2

Description of Business and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021. In the opinion of management, the condensed consolidated financial statements reflect all adjustments, which are normal and recurring in nature, necessary for fair financial statement presentation. All intercompany transactions and balances have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. The significant estimates made by management affect revenue and related reserves, as well as the fair value of liabilities assumed through business combinations. Management periodically evaluates such estimates and they are adjusted prospectively based upon such periodic evaluation. Actual results could differ from those estimates.
Internal-use software development costs	Internal-use software development costsThe Company capitalizes certain qualifying costs incurred during the development stage of internal-use software. Costs related to preliminary project activities and post-implementation activities are expensed in research and development as incurred. Preliminary project activities include conceptual formulation, evaluation and final selection of alternatives, planning, proof of concept and requirement analysis of the selected alternative. Post-implementation stage begins when the internal-use software is ready for its intended use, and includes all internal and external training and application maintenance activities. Capitalized internal-use software costs are included within property and equipment, net on the condensed consolidated balance sheets, and are amortized over the estimated useful life of the software, which is three years. The related amortization expense is recognized in cost of revenue.
Recent Accounting Pronouncements Not Yet Effective	Recent Accounting Pronouncements Not Yet Effective The Company has reviewed or is in the process of evaluating all issued, but not yet effective, accounting pronouncements and does not believe the future adoption of any such accounting pronouncements will cause a material impact on its condensed consolidated financial position, operating results or cash flows.
Receivables	The Company receives payments from customers based upon billing cycles. Invoice payment terms are usually 30 days or less. Accounts receivable are recorded when the right to consideration becomes unconditional.
Deferred Contract Acquisition	Deferred contract acquisition costs are recorded when incurred and are amortized over an estimated customer benefit period of five years.
Revenue	The Company’s contract assets consist of unbilled amounts typically resulting from professional services revenue recognition when it exceeds the total amounts billed to the customer. The Company’s contract liabilities consist of advance payments and billings in excess of revenue recognized.

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Schedule Contract Balances	The following table provides information about accounts receivable, net, deferred contract acquisition costs, net, contract assets and contract liabilities from contracts with customers (in thousands): June 30, 2022 December 31, 2021 Accounts receivable, net $ 82,885 $ 83,731 Deferred contract acquisition costs, net: Current $ 40,306 $ 33,295 Non-current 101,854 84,663 Total deferred contract acquisition costs, net $ 142,160 $ 117,958 Contract assets and contract liabilities: Contract assets (included in prepaid expenses and other current assets) $ 3,112 $ 2,593 Contract liabilities (deferred revenue) 51,553 43,720 Noncurrent contract liabilities (deferred revenue) (included in other long-term liabilities) 1,836 2,097 Net contract liabilities $ (50,277) $ (43,224)

Investments and Fair Value Me_2

Investments and Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Schedule of Marketable Investments	The Company’s marketable investments have been classified and accounted for as available-for-sale. The Company’s marketable investments as of June 30, 2022 and December 31, 2021 were as follows (in thousands): June 30, 2022 Short-Term Marketable Investments Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Certificates of deposit $ 950 $ — $ (4) $ 946 U.S. treasury 131,289 3 (1,232) 130,060 U.S. agency securities 153,324 — (1,512) 151,812 Commercial paper 18,081 — — 18,081 Municipal bonds 92,382 — (516) 91,866 Corporate bonds 4,326 — (24) 4,302 Total $ 400,352 $ 3 $ (3,288) $ 397,067 June 30, 2022 Long-term Marketable Investments Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Certificates of deposit $ 498 $ — $ (14) $ 484 U.S. treasury 24,319 — (740) 23,579 U.S. agency securities 32,286 — (888) 31,398 Municipal bonds 5,080 — (117) 4,963 Total $ 62,183 $ — $ (1,759) $ 60,424 December 31, 2021 Short-Term Marketable Investments Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Certificates of deposit $ 1,615 $ — $ — $ 1,615 U.S. treasury 83,237 — (24) 83,213 U.S. agency securities 159,070 — (65) 159,005 Commercial paper 47,555 — — 47,555 Municipal bonds 75,337 — (96) 75,241 Corporate bonds 12,355 2 (6) 12,351 Total $ 379,169 $ 2 $ (191) $ 378,980 December 31, 2021 Long-term Marketable Investments Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Certificates of deposit $ 746 $ — $ (2) $ 744 U.S. treasury 63,566 — (251) 63,315 U.S. agency securities 63,960 — (254) 63,706 Municipal bonds 18,655 — (64) 18,591 Corporate bonds 1,026 — (5) 1,021 Total $ 147,953 $ — $ (576) $ 147,377
Schedule of Gross Unrealized Losses and Fair Value of Marketable Investments	The following table presents the gross unrealized losses and the fair value for those marketable investments that were in an unrealized loss position for less than 12 months as of June 30, 2022 and December 31, 2021 (in thousands): June 30, 2022 December 31, 2021 Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Certificates of deposit $ (18) $ 1,430 $ (2) $ 2,010 U.S. treasury (1,972) 143,721 (275) 140,527 U.S. agency securities (2,400) 181,214 (320) 222,710 Municipal bonds (633) 96,829 (160) 87,184 Corporate bonds (24) 4,302 (10) 9,428 Total $ (5,047) $ 427,496 $ (767) $ 461,859
Schedule of Marketable Investments by Contractual Maturity	The amortized cost and fair values of the Company’s marketable investments by contractual maturity as of June 30, 2022 and December 31, 2021 were as follows (in thousands): June 30, 2022 December 31, 2021 Cost Fair Value Cost Fair Value Due within one year $ 400,352 $ 397,067 $ 379,169 $ 378,980 Due after one year 62,183 60,424 147,953 147,377 Total $ 462,535 $ 457,491 $ 527,122 $ 526,357
Schedule of Assets Carried at Fair Value	The following tables set forth the Company’s assets measured at fair value by level within the fair value hierarchy (in thousands): June 30, 2022 Level 1 Level 2 Level 3 Total Assets Cash equivalents Money market funds $ 28,820 $ — $ — $ 28,820 U.S. agency securities and government sponsored securities — 649 — 649 Total cash equivalents $ 28,820 $ 649 $ — $ 29,469 Marketable investments (short and long term) Certificates of deposit $ — $ 1,430 $ — $ 1,430 U.S. treasury 153,639 — — 153,639 U.S. agency securities and government sponsored securities — 183,210 — 183,210 Commercial paper — 18,081 — 18,081 Municipal bonds — 96,829 — 96,829 Corporate bonds — 4,302 — 4,302 Total marketable investments $ 153,639 $ 303,852 $ — $ 457,491 December 31, 2021 Level 1 Level 2 Level 3 Total Assets Cash equivalents Money market funds $ 31,380 $ — $ — $ 31,380 Certificates of deposit — 747 — 747 Total cash equivalents $ 31,380 $ 747 $ — $ 32,127 Marketable investments (short and long-term) Certificates of deposit $ — $ 2,359 $ — $ 2,359 U.S. treasury 146,528 — — 146,528 U.S. agency and government sponsored securities — 222,711 — 222,711 Commercial paper — 47,555 — 47,555 Municipal bonds — 93,832 — 93,832 Corporate bonds — 13,372 — 13,372 Total marketable investments $ 146,528 $ 379,829 $ — $ 526,357 Liabilities Contingent consideration $ — $ — $ 23,740 $ 23,740
Schedule of the Changes for Contingent Consideration Liabilities	A reconciliation of the beginning and ending balance for contingent consideration consisted of the following (in thousands): Six Months Ended June 30, 2022 Balance, beginning of period $ 23,740 Change in fair value of contingent consideration 260 Less: payment (24,000) Balance, end of period $ —

Financial Statement Components

Financial Statement Components (Tables)	6 Months Ended
	Jun. 30, 2022
Financial Statement Components [Abstract]
Schedule of Cash and Cash Equivalents	Cash and cash equivalents consisted of the following (in thousands): June 30, 2022 December 31, 2021 Cash $ 71,846 $ 58,751 Certificates of deposit — 747 Money market funds 28,820 31,380 U.S. agency securities 649 — Total cash and cash equivalents $ 101,315 $ 90,878
Schedule of Accounts Receivable	Accounts receivable, net consisted of the following (in thousands): June 30, 2022 December 31, 2021 Trade accounts receivable $ 71,376 $ 75,970 Unbilled trade accounts receivable, net of advance client deposits 11,744 7,981 Allowance for doubtful accounts (235) (220) Accounts receivable, net $ 82,885 $ 83,731
Schedule of Prepaid Expenses and Other Current Assets	Prepaid expenses and other current assets consisted of the following (in thousands): June 30, 2022 December 31, 2021 Prepaid expenses $ 28,914 $ 21,306 Other current assets 6,438 6,443 Contract assets 3,112 2,593 Prepaid expenses and other current assets $ 38,464 $ 30,342
Schedule of Property and Equipment	Property and equipment, net consisted of the following (in thousands): June 30, 2022 December 31, 2021 Computer and network equipment $ 147,879 $ 116,701 Computer software 48,209 44,268 Internal-use software development costs 2,433 500 Furniture and fixtures 3,993 3,953 Leasehold improvements 6,069 5,914 Property and equipment 208,583 171,336 Accumulated depreciation and amortization (108,589) (93,551) Property and equipment, net $ 99,994 $ 77,785 Property and equipment capitalized under finance lease obligations consists primarily of computer and network equipment and was as follows (in thousands): June 30, 2022 December 31, 2021 Gross $ 42,504 $ 42,541 Less: accumulated depreciation and amortization (42,194) (41,689) Total $ 310 $ 852
Schedule of Other Assets	Other assets consisted of the following (in thousands): June 30, 2022 December 31, 2021 Other assets $ 5,033 $ 4,964 Equity investment 2,000 — Deferred tax assets 4,853 6,907 Total $ 11,886 $ 11,871
Schedule of Accrued and Other Current Liabilities	Accrued and other current liabilities consisted of the following (in thousands): June 30, 2022 December 31, 2021 Accrued expenses $ 18,784 $ 20,108 Accrued compensation and benefits 38,110 34,729 Contingent consideration — 23,740 Accrued and other current liabilities $ 56,894 $ 78,577
Schedule of Other Long-term Liabilities	Other long-term liabilities consisted of the following (in thousands): June 30, 2022 December 31, 2021 Deferred revenue $ 1,836 $ 2,097 Other long-term liabilities 4,272 5,574 Other long-term liabilities $ 6,108 $ 7,671

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule Intangible Assets Activity	The following table summarizes the activity in the Company's intangible assets balance during the three and six months ended June 30, 2022 (in thousands): Three Months Ended June 30, 2022 Six Months Ended June 30, 2022 Beginning of the period $ 36,950 $ 39,897 Amortization (2,935) (5,882) End of the period $ 34,015 $ 34,015
Schedule of Intangible Assets	The components of intangible assets were as follows (in thousands): June 30, 2022 December 31, 2021 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Amortization period (Years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Amortization period (Years) Developed technology $ 56,214 $ (23,352) $ 32,862 3.6 $ 56,214 $ (17,821) $ 38,393 4.0 Acquired workforce 470 (412) 58 0.4 470 (334) 136 0.9 Customer relationships 1,600 (581) 1,019 3.2 1,600 (421) 1,179 3.7 Trademarks 500 (424) 76 0.4 500 (311) 189 0.9 Total $ 58,784 $ (24,769) $ 34,015 3.6 $ 58,784 $ (18,887) $ 39,897 4.0
Schedule of Expected Future Amortization Expense of Intangible Assets	As of June 30, 2022, the expected future amortization expense for intangible assets was as follows (in thousands): Period Expected Future Amortization Expense Remaining 2022 $ 5,823 2023 10,870 2024 7,527 2025 5,595 2026 4,200 Thereafter — Total $ 34,015

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2022
Convertible Senior Notes, Due 2025
Debt Instrument [Line Items]
Schedule of Net Carrying Amount of Notes and Impact to Additional Paid-in Capital	The net carrying amount of the 2025 convertible senior notes as of June 30, 2022 and as of December 31, 2021 was as follows (in thousands): June 30, 2022 December 31, 2021 Principal $ 747,500 $ 747,500 Unamortized issuance costs (11,015) (12,835) Net carrying amount $ 736,485 $ 734,665
Schedule of Interest Expense Related to the Notes	Interest expense related to the 2025 convertible senior notes was as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Contractual interest expense $ 934 $ 1,121 $ 1,869 $ 2,055 Amortization of issuance costs 922 912 1,821 1,802 Total interest expense $ 1,856 $ 2,033 $ 3,690 $ 3,857
Schedule of Maturities of Debt	Maturity of the Company’s 2025 convertible senior notes as of June 30, 2022 was as follows (in thousands): Period Amount to Mature 2025 (Maturity date of June 1, 2025) $ 747,500 Total $ 747,500
Convertible Senior Notes, Due 2023
Debt Instrument [Line Items]
Schedule of Net Carrying Amount of Notes and Impact to Additional Paid-in Capital	The net carrying amount of the 2023 convertible senior notes as of June 30, 2022 and as of December 31, 2021 was as follows (in thousands): June 30, 2022 December 31, 2021 Principal $ 188 $ 34,225 Unamortized issuance costs (1) (291) Net carrying amount $ 187 $ 33,934
Schedule of Interest Expense Related to the Notes	Interest expense related to the 2023 convertible senior notes was as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Contractual interest expense $ — $ 6 $ 6 $ 23 Amortization of issuance costs — 73 31 157 Total interest expense $ — $ 79 $ 37 $ 180
Schedule of Maturities of Debt	Maturity of the Company’s 2023 convertible senior notes as of June 30, 2022 was as follows (in thousands): Period Amount to Mature 2023 (Maturity date of May 1, 2023) $ 188 Total $ 188

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Schedule of Common Stock Reserved for Future Issuance	Shares of common stock reserved for future issuance related to outstanding equity awards and employee equity incentive plans were as follows (in thousands): June 30, 2022 Stock options outstanding 1,698 RSUs (including PRSUs) outstanding 3,111 Shares available for future grant under 2014 Plan 15,484 Shares available for future issuance under ESPP 3,664 Total shares of common stock reserved 23,957
Schedule of Stock Option Activity	A summary of the Company’s stock option activity during the six months ended June 30, 2022 is as follows (in thousands, except years and per share data): Number of Weighted Weighted Aggregate Outstanding as of December 31, 2021 1,982 $ 38.65 Options granted (weighted average grant date fair value of $54.84 per share) 81 110.55 Options exercised (351) 8.55 Options forfeited or expired (14) 116.87 Outstanding as of June 30, 2022 1,698 $ 47.68 2.4 $ 90,323
Schedule of RSU Activity	A summary of the Company’s restricted stock unit ("RSU"), activity during the six months ended June 30, 2022 is as follows (in thousands, except per share data): Number of Shares Weighted Average Grant Date Fair Value Per Share Outstanding as of December 31, 2021 2,560 $ 125.65 RSUs granted (1) 1,392 110.97 RSUs vested and released (699) 110.68 RSUs forfeited or canceled (142) 124.59 Outstanding as of June 30, 2022 3,111 121.84
Schedule of Stock-based Compensation Expense	Stock-based compensation expense was as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Cost of revenue $ 8,538 $ 3,781 $ 16,330 $ 6,886 Research and development 11,818 6,152 21,963 10,915 Sales and marketing 14,963 8,208 28,387 14,979 General and administrative 9,467 6,760 17,499 13,029 Total stock-based compensation expense 44,786 24,901 84,179 45,809
Schedule of Unrecognized Compensation Expense	As of June 30, 2022, unrecognized stock-based compensation expense by award type and their expected weighted-average recognition periods are summarized in the following table (in thousands, except years). Stock Option RSU PRSU ESPP Unrecognized stock-based compensation expense $ 19,422 $ 344,075 $ 12,906 $ 1,635 Weighted-average amortization period 2.4 years 2.6 years 2.1 years 0.4 years
Schedule of Valuation Assumptions, Stock Option	The weighted-average assumptions used to value stock options and PRSUs with market conditions granted during the periods presented were as follows: Stock Options Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Expected term (years) 6.0 6.0 6.0 6.0 Volatility 47 % 47.0 % 46 % 47 % Risk-free interest rate 3.0 % 1.0 % 1.8 % 1.1 % Dividend yield (1) — — — — PRSUs (Market Conditions) Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Closing price of common stock as of grant date (February 28, 2022) — — $110.00 — Expected term (years) — — 2.84 — Volatility — — 48.8 % — Risk-free interest rate — — 1.6 % — Dividend yield (1) — — — — (1) The Company has not paid, and does not anticipate paying, cash dividends on its shares of common stock. Accordingly, the expected dividend yield is zero.

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Net Loss Per Share	The following table presents the calculation of basic and diluted net loss per share (in thousands, except per share data): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Net loss $ (23,670) $ (16,530) $ (57,790) $ (28,862) Weighted-average shares used in computing basic and diluted net loss per share 69,748 67,292 69,363 67,008 Basic and diluted net loss per share $ (0.34) $ (0.25) $ (0.83) $ (0.43)
Schedule of Antidilutive Securities Excluded from Computation of Net Loss Per Share	The following securities were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Stock options 1,698 2,129 1,698 2,129 RSUs (includes PRSUs) 3,111 2,273 3,111 2,273 Convertible senior notes 5,571 6,708 5,804 6,796 Total 10,380 11,110 10,613 11,198

Geographical Information (Table

Geographical Information (Tables)	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
Schedule of Revenues and Property and Equipment by Geographic Region	The following table summarizes revenues by geographic region based on client billing address (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 United States $ 170,984 $ 131,257 $ 338,231 $ 257,143 International 18,398 12,525 33,928 24,521 Total revenue $ 189,382 $ 143,782 $ 372,159 $ 281,664 The following table summarizes total property and equipment, net in the respective locations (in thousands): June 30, 2022 December 31, 2021 United States $ 92,448 $ 68,674 International 7,546 9,111 Property and equipment, net $ 99,994 $ 77,785

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2022
Leases [Abstract]
Schedule of Lease Expenses and Terms	The components of lease expenses were as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Operating lease cost $ 2,869 $ 2,517 $ 5,769 $ 5,185 Finance lease cost: Amortization of right-of-use assets $ 135 $ 544 $ 468 $ 1,261 Interest on finance lease liabilities — 5 — 18 Total finance lease cost $ 135 $ 549 $ 468 $ 1,279 Supplemental cash flow information related to leases was as follows (in thousands): Three Months Ended Six Months Ended June 30, 2022 June 30, 2021 June 30, 2022 June 30, 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash used in operating leases $ (2,829) $ (1,370) $ (5,538) $ (3,408) Financing cash used in finance leases — (119) — (575) Right of use assets obtained in exchange for lease obligations: Operating leases 264 4,090 584 42,429 Finance leases — — — — Weighted average remaining terms were as follows (in years): June 30, 2022 December 31, 2021 Weighted average remaining lease term Operating leases 7.0 7.3 Weighted average discount rates were as follows: June 30, 2022 December 31, 2021 Weighted average discount rate Operating leases 3.2 % 3.2 %
Schedule of Balance Sheet Information Related to Leases	Supplemental balance sheet information related to leases was as follows (in thousands): June 30, 2022 December 31, 2021 Operating leases Operating lease right-of-use assets $ 43,593 $ 48,703 Operating lease liabilities $ 9,836 $ 9,826 Operating lease liabilities — less current portion 42,186 47,088 Total operating lease liabilities $ 52,022 $ 56,914 Finance leases Property and equipment, gross $ 42,504 $ 42,541 Less: accumulated depreciation and amortization (42,194) (41,689) Property and equipment, net $ 310 $ 852
Schedule of Operating Lease Maturities	Maturities of lease liabilities were as follows (in thousands): Year Ending December 31, Operating Leases Remaining 2022 $ 5,917 2023 10,458 2024 7,723 2025 5,584 2026 5,716 Thereafter 22,829 Total future minimum lease payments 58,227 Less: imputed interest (6,205) Total $ 52,022

Description of Business and S_3

Description of Business and Summary of Significant Accounting Policies (Details)	6 Months Ended
	Jun. 30, 2022
Internal-use software development costs
Property, Plant and Equipment [Line Items]
Useful life (in years)	3 years

Revenue - Contract Balances (De

Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 82,885	$ 83,731
Deferred contract acquisition costs, net:
Current	40,306	33,295
Non-current	101,854	84,663
Total deferred contract acquisition costs, net	142,160	117,958
Contract assets and contract liabilities:
Contract assets (included in prepaid expenses and other current assets)	3,112	2,593
Contract liabilities (deferred revenue)	51,553	43,720
Noncurrent contract liabilities (deferred revenue) (included in other long-term liabilities)	1,836	2,097
Net contract liabilities	$ (50,277)	$ (43,224)

Revenue - Narrative (Details)

Revenue - Narrative (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract revenue recognized	$ 6.7	$ 33
Contract acquisition costs
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Amortization period of capitalized contract cost (in years)	5 years	5 years

Revenue - Remaining Performance

Revenue - Remaining Performance Obligations (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Revenue from Contract with Customer [Abstract]
Performance obligation	$ 713.8
Performance obligation, description of timing	The Company expects to recognize revenue on approximately three-fourths of the remaining performance obligations over the next 24 months, with the balance recognized thereafter. The Company has elected the optional exemption, which allows for the exclusion of the amounts for remaining performance obligations that are part of contracts with an original expected duration of one year or less. Such remaining performance obligations represent unsatisfied or partially unsatisfied performance obligations
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligation satisfaction period (in months)	24 months
Remaining performance obligation expected to be recognized (as a percent)	75%

Investments and Fair Value Me_3

Investments and Fair Value Measurements - Schedule of Marketable Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Total	$ 462,535	$ 527,122
Fair Value	457,491	526,357
Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	400,352	379,169
Gross Unrealized Gains	3	2
Gross Unrealized Losses	(3,288)	(191)
Fair Value	397,067	378,980
Long-term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	62,183	147,953
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,759)	(576)
Fair Value	60,424	147,377
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Fair Value	1,430	2,359
Certificates of deposit | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	950	1,615
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(4)	0
Fair Value	946	1,615
Certificates of deposit | Long-term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	498	746
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(14)	(2)
Fair Value	484	744
U.S. treasury
Debt Securities, Available-for-sale [Line Items]
Fair Value	153,639	146,528
U.S. treasury | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	131,289	83,237
Gross Unrealized Gains	3	0
Gross Unrealized Losses	(1,232)	(24)
Fair Value	130,060	83,213
U.S. treasury | Long-term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	24,319	63,566
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(740)	(251)
Fair Value	23,579	63,315
U.S. agency securities | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	153,324	159,070
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,512)	(65)
Fair Value	151,812	159,005
U.S. agency securities | Long-term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	32,286	63,960
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(888)	(254)
Fair Value	31,398	63,706
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Fair Value	18,081	47,555
Commercial paper | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	18,081	47,555
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	18,081	47,555
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Fair Value	96,829	93,832
Municipal bonds | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	92,382	75,337
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(516)	(96)
Fair Value	91,866	75,241
Municipal bonds | Long-term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	5,080	18,655
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(117)	(64)
Fair Value	4,963	18,591
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Fair Value	4,302	13,372
Corporate bonds | Short-Term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total	4,326	12,355
Gross Unrealized Gains	0	2
Gross Unrealized Losses	(24)	(6)
Fair Value	$ 4,302	12,351
Corporate bonds | Long-term Marketable Investments
Debt Securities, Available-for-sale [Line Items]
Total		1,026
Gross Unrealized Gains		0
Gross Unrealized Losses		(5)
Fair Value		$ 1,021

Investments and Fair Value Me_4

Investments and Fair Value Measurements - Schedule of Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Losses	$ (5,047)	$ (767)
Fair Value	427,496	461,859
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Losses	(18)	(2)
Fair Value	1,430	2,010
U.S. treasury
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Losses	(1,972)	(275)
Fair Value	143,721	140,527
U.S. agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Losses	(2,400)	(320)
Fair Value	181,214	222,710
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Losses	(633)	(160)
Fair Value	96,829	87,184
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Losses	(24)	(10)
Fair Value	$ 4,302	$ 9,428

Investments and Fair Value Me_5

Investments and Fair Value Measurements - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended	6 Months Ended
	Apr. 30, 2022	Mar. 31, 2022	Jun. 30, 2022	Jun. 30, 2021	Feb. 28, 2022	Dec. 31, 2021	Nov. 30, 2020
Debt Instrument [Line Items]
Contingent consideration						$ 23,740,000
Change in fair of value of contingent consideration			$ 260,000	$ 5,200,000
Payment for contingent consideration liability			18,100,000	$ 0
Equity investment			2,000,000		$ 2,000,000	0
Nonrecurring
Debt Instrument [Line Items]
Assets measured at fair value on nonrecurring basis			0			0
Liabilities measured at fair value on nonrecurring basis			0			0
Inference Solutions
Debt Instrument [Line Items]
Contingent consideration		$ 24,000,000				23,700,000
Change in fair of value of contingent consideration		$ 300,000
Payment for contingent consideration liability	$ 24,000,000
Maximum | Inference Solutions
Debt Instrument [Line Items]
Contingent consideration							$ 24,000,000
Level 2
Debt Instrument [Line Items]
Contingent consideration						0
Convertible Senior Notes, Due 2023 | Level 2 | Convertible Debt
Debt Instrument [Line Items]
Fair value of long-term debt			400,000			114,900,000
Convertible Senior Notes, Due 2025 | Level 2 | Convertible Debt
Debt Instrument [Line Items]
Fair value of long-term debt			$ 732,400,000			$ 917,300,000

Investments and Fair Value Me_6

Investments and Fair Value Measurements - Maturity Dates (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Cost
Due within one year	$ 400,352	$ 379,169
Due after one year	62,183	147,953
Total	462,535	527,122
Fair Value
Due within one year	397,067	378,980
Due after one year	60,424	147,377
Total	$ 457,491	$ 526,357

Investments and Fair Value Me_7

Investments and Fair Value Measurements - Schedule of Assets Carried at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Assets
Cash equivalents	$ 29,469	$ 32,127
Marketable investments (short and long term)	457,491	526,357
Liabilities
Contingent consideration		23,740
Level 1
Assets
Cash equivalents	28,820	31,380
Marketable investments (short and long term)	153,639	146,528
Liabilities
Contingent consideration		0
Level 2
Assets
Cash equivalents	649	747
Marketable investments (short and long term)	303,852	379,829
Liabilities
Contingent consideration		0
Level 3
Assets
Cash equivalents	0	0
Marketable investments (short and long term)	0	0
Liabilities
Contingent consideration		23,740
Certificates of deposit
Assets
Marketable investments (short and long term)	1,430	2,359
Certificates of deposit | Level 1
Assets
Marketable investments (short and long term)	0	0
Certificates of deposit | Level 2
Assets
Marketable investments (short and long term)	1,430	2,359
Certificates of deposit | Level 3
Assets
Marketable investments (short and long term)	0	0
U.S. treasury
Assets
Marketable investments (short and long term)	153,639	146,528
U.S. treasury | Level 1
Assets
Marketable investments (short and long term)	153,639	146,528
U.S. treasury | Level 2
Assets
Marketable investments (short and long term)	0	0
U.S. treasury | Level 3
Assets
Marketable investments (short and long term)	0	0
U.S. agency and government sponsored securities
Assets
Marketable investments (short and long term)	183,210	222,711
U.S. agency and government sponsored securities | Level 1
Assets
Marketable investments (short and long term)	0	0
U.S. agency and government sponsored securities | Level 2
Assets
Marketable investments (short and long term)	183,210	222,711
U.S. agency and government sponsored securities | Level 3
Assets
Marketable investments (short and long term)	0	0
Commercial paper
Assets
Marketable investments (short and long term)	18,081	47,555
Commercial paper | Level 1
Assets
Marketable investments (short and long term)	0	0
Commercial paper | Level 2
Assets
Marketable investments (short and long term)	18,081	47,555
Commercial paper | Level 3
Assets
Marketable investments (short and long term)	0	0
Municipal bonds
Assets
Marketable investments (short and long term)	96,829	93,832
Municipal bonds | Level 1
Assets
Marketable investments (short and long term)	0	0
Municipal bonds | Level 2
Assets
Marketable investments (short and long term)	96,829	93,832
Municipal bonds | Level 3
Assets
Marketable investments (short and long term)	0	0
Corporate bonds
Assets
Marketable investments (short and long term)	4,302	13,372
Corporate bonds | Level 1
Assets
Marketable investments (short and long term)	0	0
Corporate bonds | Level 2
Assets
Marketable investments (short and long term)	4,302	13,372
Corporate bonds | Level 3
Assets
Marketable investments (short and long term)	0	0
Money market funds
Assets
Cash equivalents	28,820	31,380
Money market funds | Level 1
Assets
Cash equivalents	28,820	31,380
Money market funds | Level 2
Assets
Cash equivalents	0	0
Money market funds | Level 3
Assets
Cash equivalents	0	0
U.S. agency and government sponsored securities
Assets
Cash equivalents	649
U.S. agency and government sponsored securities | Level 1
Assets
Cash equivalents	0
U.S. agency and government sponsored securities | Level 2
Assets
Cash equivalents	649
U.S. agency and government sponsored securities | Level 3
Assets
Cash equivalents	$ 0
Certificates of deposit
Assets
Cash equivalents		747
Certificates of deposit | Level 1
Assets
Cash equivalents		0
Certificates of deposit | Level 2
Assets
Cash equivalents		747
Certificates of deposit | Level 3
Assets
Cash equivalents		$ 0

Investments and Fair Value Me_8

Investments and Fair Value Measurements - Reconciliation of Contingent Consideration (Details) - Liability $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Summary of changes in contingent consideration liabilities
Balance, beginning of period	$ 23,740
Change in fair value of contingent consideration	260
Less: payment	(24,000)
Balance, end of period	$ 0

Financial Statement Component_2

Financial Statement Components - Schedule of Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	$ 101,315	$ 90,878
Cash
Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	71,846	58,751
Certificates of deposit
Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	0	747
Money market funds
Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	28,820	31,380
U.S. agency securities
Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	$ 649	$ 0

Financial Statement Component_3

Financial Statement Components - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Accounts Receivable [Line Items]
Allowance for doubtful accounts	$ (235)	$ (220)
Accounts receivable, net	82,885	83,731
Trade accounts receivable
Accounts Receivable [Line Items]
Trade accounts receivable	71,376	75,970
Unbilled trade accounts receivable, net of advance client deposits
Accounts Receivable [Line Items]
Trade accounts receivable	$ 11,744	$ 7,981

Financial Statement Component_4

Financial Statement Components - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financial Statement Components [Abstract]
Prepaid expenses	$ 28,914	$ 21,306
Other current assets	6,438	6,443
Contract assets	3,112	2,593
Prepaid expenses and other current assets	$ 38,464	$ 30,342

Financial Statement Component_5

Financial Statement Components - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment	$ 208,583		$ 208,583		$ 171,336
Accumulated depreciation and amortization	(108,589)		(108,589)		(93,551)
Property and equipment, net	99,994		99,994		77,785
Depreciation and amortization associated with property and equipment	8,700	$ 6,700	16,600	$ 12,500
Computer and network equipment
Property, Plant and Equipment [Line Items]
Property and equipment	147,879		147,879		116,701
Computer software
Property, Plant and Equipment [Line Items]
Property and equipment	48,209		48,209		44,268
Internal-use software development costs
Property, Plant and Equipment [Line Items]
Property and equipment	2,433		2,433		500
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment	3,993		3,993		3,953
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment	$ 6,069		$ 6,069		$ 5,914

Financial Statement Component_6

Financial Statement Components - Schedule of Property and Equipment under Finance Lease Obligations (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financial Statement Components [Abstract]
Gross	$ 42,504	$ 42,541
Less: accumulated depreciation and amortization	(42,194)	(41,689)
Property and equipment, net	$ 310	$ 852

Financial Statement Component_7

Financial Statement Components - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Feb. 28, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Other assets	$ 5,033		$ 4,964
Equity investment	2,000	$ 2,000	0
Deferred tax assets	4,853		6,907
Total	$ 11,886		$ 11,871

Financial Statement Component_8

Financial Statement Components - Schedule of Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financial Statement Components [Abstract]
Accrued expenses	$ 18,784	$ 20,108
Accrued compensation and benefits	38,110	34,729
Contingent consideration	0	23,740
Accrued and other current liabilities	$ 56,894	$ 78,577

Financial Statement Component_9

Financial Statement Components - Schedule of Long-term Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred revenue	$ 1,836	$ 2,097
Other long-term liabilities	4,272	5,574
Other long-term liabilities	$ 6,108	$ 7,671

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Goodwill and Intangible Asset Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Finite-lived Intangible Assets [Roll Forward]
Beginning of the period	$ 36,950		$ 39,897
Amortization	(2,935)	$ (2,900)	(5,882)	$ (5,900)
End of the period	$ 34,015		$ 34,015

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Mar. 31, 2022
Acquired Finite-Lived Intangible Assets
Gross Carrying Amount	$ 58,784		$ 58,784		$ 58,784
Accumulated Amortization	(24,769)		(24,769)		(18,887)
Net Carrying Amount	34,015		$ 34,015		$ 39,897	$ 36,950
Weighted Average Remaining Amortization period (Years)			3 years 7 months 6 days		4 years
Amortization of intangible assets	2,935	$ 2,900	$ 5,882	$ 5,900
Developed technology
Acquired Finite-Lived Intangible Assets
Gross Carrying Amount	56,214		56,214		$ 56,214
Accumulated Amortization	(23,352)		(23,352)		(17,821)
Net Carrying Amount	32,862		$ 32,862		$ 38,393
Weighted Average Remaining Amortization period (Years)			3 years 7 months 6 days		4 years
Acquired workforce
Acquired Finite-Lived Intangible Assets
Gross Carrying Amount	470		$ 470		$ 470
Accumulated Amortization	(412)		(412)		(334)
Net Carrying Amount	58		$ 58		$ 136
Weighted Average Remaining Amortization period (Years)			4 months 24 days		10 months 24 days
Customer relationships
Acquired Finite-Lived Intangible Assets
Gross Carrying Amount	1,600		$ 1,600		$ 1,600
Accumulated Amortization	(581)		(581)		(421)
Net Carrying Amount	1,019		$ 1,019		$ 1,179
Weighted Average Remaining Amortization period (Years)			3 years 2 months 12 days		3 years 8 months 12 days
Trademarks
Acquired Finite-Lived Intangible Assets
Gross Carrying Amount	500		$ 500		$ 500
Accumulated Amortization	(424)		(424)		(311)
Net Carrying Amount	$ 76		$ 76		$ 189
Weighted Average Remaining Amortization period (Years)			4 months 24 days		10 months 24 days

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Future Amortization Expense (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Remaining 2022	$ 5,823
2023	10,870
2024	7,527
2025	5,595
2026	4,200
Thereafter	0
Net Carrying Amount	$ 34,015	$ 36,950	$ 39,897

Debt - Convertible Senior Notes

Debt - Convertible Senior Notes and Capped Call (Narrative) (Details)		1 Months Ended		2 Months Ended	3 Months Ended		6 Months Ended		36 Months Ended
	Jan. 01, 2021 Rate	May 31, 2020 USD ($) shares	May 31, 2018 USD ($) $ / shares	Jun. 30, 2020 USD ($) $ / shares	Jun. 30, 2022 $ / shares shares	Jun. 30, 2021 shares	Jun. 30, 2022 USD ($) day $ / shares Rate shares	Jun. 30, 2021 USD ($) shares	Jun. 30, 2022 USD ($) trigger day $ / shares shares	May 21, 2020 $ / shares
Debt Instrument [Line Items]
Cash consideration to repurchase note							$ 34,034,000	$ 17,622,000
Common Stock
Debt Instrument [Line Items]
Equity component from partial repurchase of 2023 convertible senior notes (in shares) | shares					34,000	182,000	574,000	325,000
Treasury Stock
Debt Instrument [Line Items]
Partial unwind of capped calls related to the 2023 convertible senior notes (in shares) | shares							119,492
Convertible Senior Notes, Due 2025 | Convertible Debt
Debt Instrument [Line Items]
Stated interest rate on debt (as a percent)				0.50%
Multiple of principle amount							$ 1,000
Conversion ratio on convertible debt | Rate							744.37%
Conversion price on convertible debt (in USD per share) | $ / shares					$ 134.34		$ 134.34		$ 134.34
Premium on conversion price in relation to closing price (as a percent)										30%
Closing price of common stock (in USD per share) | $ / shares					91.14		91.14		91.14	$ 103.34
Share price of common stock with conversion premium (in USD per share) | $ / shares					$ 174.64		$ 174.64		$ 174.64
Sinking fund payment							$ 0
Cap price of the capped call transactions (in USD per share) | $ / shares				$ 206.68
Number of shares covered in the capped call transactions (in shares) | shares					5,600,000		5,600,000		5,600,000
Effective interest rate on debt (as a percent)	5.76%
Amortization of debt issuance costs, Effective interest rate (as a percent) | Rate	1%
Convertible Senior Notes, Due 2025 | Convertible Debt | Fundamental Change Event
Debt Instrument [Line Items]
Debt redemption price as percentage of principal amount (as a percent)							100%
Convertible Senior Notes, Due 2025 | Convertible Debt | On or After June 6, 2023
Debt Instrument [Line Items]
Number of trading days (in days) | day							20
Number of consecutive trading days (in days) | day							30
Threshold percentage of stock price trigger (as a percent)							130%
Debt redemption price as percentage of principal amount (as a percent)							100%
Number of trading days preceding notice of redemption (in days) | day							2
Convertible Senior Notes, Due 2025 | Convertible Debt | Convertible, Term One
Debt Instrument [Line Items]
Number of trading days (in days) | day							20
Number of consecutive trading days (in days) | day							30
Threshold percentage of stock price trigger (as a percent)							130%
Convertible Senior Notes, Due 2025 | Convertible Debt | Convertible, Term Two
Debt Instrument [Line Items]
Number of trading days (in days) | day							5
Number of consecutive trading days (in days) | day							5
Threshold percentage of stock price trigger (as a percent)							98%
Convertible Senior Notes, Due 2025 | Convertible Debt | Private Placement
Debt Instrument [Line Items]
Aggregate principal amount of debt				$ 747,500,000
Option to purchase additional debt through private offering				$ 97,500,000
Convertible Senior Notes, Due 2023 | Common Stock
Debt Instrument [Line Items]
Equity component from partial repurchase of 2023 convertible senior notes (in shares) | shares					33,503		573,633
Convertible Senior Notes, Due 2023 | Treasury Stock
Debt Instrument [Line Items]
Partial unwind of capped calls related to the 2023 convertible senior notes (in shares) | shares					8,076		119,492
Convertible Senior Notes, Due 2023 | Convertible Debt
Debt Instrument [Line Items]
Stated interest rate on debt (as a percent)			0.125%
Multiple of principle amount							$ 1,000		$ 1,000
Conversion ratio on convertible debt | Rate							2,449.78%
Conversion price on convertible debt (in USD per share) | $ / shares					$ 40.82		$ 40.82		$ 40.82
Cap price of the capped call transactions (in USD per share) | $ / shares			$ 62.80
Debt instrument, repurchase amount		$ 181,000,000
Aggregate consideration to repurchase note		449,600,000
Cash consideration to repurchase note		$ 181,000,000
Number of conversion features triggered | trigger									1
Conversion price per share, requiring conversion of instrument (in USD per share) | $ / shares					$ 53.07		$ 53.07		$ 53.07
Cash payment to settle aggregate principal							$ 34,000,000
Debt instrument, conversion multiple of aggregate principal amount							34,000,000
Conversion of aggregate principal amount, term one							$ 100,000
Number of shares covered in the capped call transactions (in shares) | shares					6,300,000		6,300,000		6,300,000
Effective interest rate on debt (as a percent)	6.39%
Amortization of debt issuance costs, Effective interest rate (as a percent) | Rate	0.76%
Convertible Senior Notes, Due 2023 | Convertible Debt | Common Stock
Debt Instrument [Line Items]
Equity component from partial repurchase of 2023 convertible senior notes (in shares) | shares		2,723,581
Debt instrument, conversion multiple of aggregate principal amount, shares (in shares) | shares							573,633
Convertible Senior Notes, Due 2023 | Convertible Debt | Fundamental Change Event
Debt Instrument [Line Items]
Debt redemption price as percentage of principal amount (as a percent)							100%
Convertible Senior Notes, Due 2023 | Convertible Debt | Convertible, Term One
Debt Instrument [Line Items]
Number of trading days (in days) | day							20		20
Number of consecutive trading days (in days) | day							30		30
Threshold percentage of stock price trigger (as a percent)							130%		130%
Convertible Senior Notes, Due 2023 | Convertible Debt | Convertible, Term Two
Debt Instrument [Line Items]
Number of trading days (in days) | day							5
Number of consecutive trading days (in days) | day							5
Threshold percentage of stock price trigger (as a percent)							98%
Convertible Senior Notes, Due 2023 | Convertible Debt | Private Placement
Debt Instrument [Line Items]
Aggregate principal amount of debt			$ 258,800,000

Debt - Schedule of Net Carrying

Debt - Schedule of Net Carrying Amount of the Liability Component of the Notes (Details) - Convertible Debt - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Principal	$ 747,700
Convertible Senior Notes, Due 2025
Debt Instrument [Line Items]
Principal	747,500	$ 747,500
Unamortized issuance costs	(11,015)	(12,835)
Net carrying amount	736,485	734,665
Convertible Senior Notes, Due 2023
Debt Instrument [Line Items]
Principal	188	34,225
Unamortized issuance costs	(1)	(291)
Net carrying amount	$ 187	$ 33,934

Debt - Schedule of Interest Exp

Debt - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Debt Instrument [Line Items]
Total interest expense	$ 1,857	$ 2,118	$ 3,727	$ 4,056
Convertible Senior Notes, Due 2025 | Convertible Debt
Debt Instrument [Line Items]
Contractual interest expense	934	1,121	1,869	2,055
Amortization of issuance costs	922	912	1,821	1,802
Total interest expense	1,856	2,033	3,690	3,857
Convertible Senior Notes, Due 2023 | Convertible Debt
Debt Instrument [Line Items]
Contractual interest expense	0	6	6	23
Amortization of issuance costs	0	73	31	157
Total interest expense	$ 0	$ 79	$ 37	$ 180

Debt - Schedule of Maturities o

Debt - Schedule of Maturities of Debt (Details) - Convertible Debt - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total	$ 747,700
Convertible Senior Notes, Due 2025
Debt Instrument [Line Items]
2025 (Maturity date of June 1, 2025)	747,500
Total	747,500	$ 747,500
Convertible Senior Notes, Due 2023
Debt Instrument [Line Items]
2023 (Maturity date of May 1, 2023)	188
Total	$ 188	$ 34,225

Stockholders' Equity - Narrativ

Stockholders' Equity - Narrative (Details) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) installment goal $ / shares shares	Feb. 28, 2022 USD ($) period shares	Jun. 30, 2022 $ / shares shares	Jun. 30, 2021 shares	Jun. 30, 2022 $ / shares shares	Jun. 30, 2021 shares	Dec. 31, 2021 shares
Stockholders' Equity Capital Structure [Line Items]
Common stock shares authorized (in shares)	450,000,000		450,000,000		450,000,000
Common stock par value (in USD per share) | $ / shares	$ 0.001		$ 0.001		$ 0.001
Common stock shares issued (in shares)	70,090,027		70,090,027		70,090,027		68,488,337
Common stock shares outstanding (in shares)	70,090,027		70,090,027		70,090,027		68,488,337
Preferred stock shares authorized (up to) (in shares)	5,000,000		5,000,000		5,000,000
Preferred stock par value (in USD per share) | $ / shares	$ 0.001		$ 0.001		$ 0.001
Preferred stock shares issued (in shares)	0		0		0		0
Preferred stock shares outstanding (in shares)	0		0		0		0
Closing market price of common stock (in USD per share) | $ / shares	$ 91.14		$ 91.14		$ 91.14
PRSUs
Stockholders' Equity Capital Structure [Line Items]
Closing market price of common stock (in USD per share) | $ / shares	$ 110		$ 110		$ 110
Equity instruments granted (in shares)	60,963	59,383			120,346
Equity instruments granted, weighted average grant date fair value | $	$ 6.3	$ 8.3
Award vesting percentage		33.33%
Number of performance periods | period		3
Term of the performance period (in years)		1 year
Earnout target percentage, maximum for 2022 and 2023 (as a percent)		1
Number of quarterly revenue goals | goal	2
PRSUs | First revenue target
Stockholders' Equity Capital Structure [Line Items]
Award vesting percentage	33.33%
Number of quarterly installments | installment	4
PRSUs | Second revenue target
Stockholders' Equity Capital Structure [Line Items]
Award vesting percentage	66.67%
Number of quarterly installments | installment	8
PRSUs | Minimum
Stockholders' Equity Capital Structure [Line Items]
Earnout target percentage (as a percent)		0
PRSUs | Maximum
Stockholders' Equity Capital Structure [Line Items]
Earnout target percentage (as a percent)		2
PRSUs | Maximum | Shareholder for Performance Any Period is Negative
Stockholders' Equity Capital Structure [Line Items]
Earnout target percentage (as a percent)		1
PRSUs | Maximum | Executive Employment Terminates due to Death by end of 2024
Stockholders' Equity Capital Structure [Line Items]
Earnout target percentage (as a percent)		1
PRSUs | Maximum | Executive Employment Terminates due to Disability by end of 2024
Stockholders' Equity Capital Structure [Line Items]
Earnout target percentage (as a percent)		0.50
Common Stock
Stockholders' Equity Capital Structure [Line Items]
Equity component from partial repurchase of 2023 convertible senior notes (in shares)			34,000	182,000	574,000	325,000
Treasury Stock
Stockholders' Equity Capital Structure [Line Items]
Partial unwind of capped calls related to the 2023 convertible senior notes (in shares)					119,492
Convertible Senior Notes, Due 2023 | Common Stock
Stockholders' Equity Capital Structure [Line Items]
Equity component from partial repurchase of 2023 convertible senior notes (in shares)			33,503		573,633
Convertible Senior Notes, Due 2023 | Treasury Stock
Stockholders' Equity Capital Structure [Line Items]
Partial unwind of capped calls related to the 2023 convertible senior notes (in shares)			8,076		119,492

Stockholders' Equity - Common S

Stockholders' Equity - Common Stock Reserved for Future Issuance (Details) shares in Thousands	Jun. 30, 2022 shares
Class of Stock
Common stock reserved for future issuance (in shares)	23,957
2014 Plan
Class of Stock
Common stock reserved for future issuance (in shares)	15,484
Stock options
Class of Stock
Common stock reserved for future issuance (in shares)	1,698
RSUs (includes PRSUs)
Class of Stock
Common stock reserved for future issuance (in shares)	3,111
Shares available for future issuance under ESPP
Class of Stock
Common stock reserved for future issuance (in shares)	3,664

Stockholders' Equity - Stock Op

Stockholders' Equity - Stock Option Activity (Details) - Stock options $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($) $ / shares shares
Options Outstanding [Roll Forward]
Outstanding, beginning balance (in shares) | shares	1,982
Options granted (in shares) | shares	81
Options exercised (in shares) | shares	(351)
Options forfeited or expired (in shares) | shares	(14)
Outstanding, ending balance (in shares) | shares	1,698
Options Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding, beginning balance, weighted average exercise price (in USD per share)	$ 38.65
Options granted, weighted average exercise price (in USD per share)	110.55
Options exercised, weighted average exercise price (in USD per share)	8.55
Options forfeited or expired, weighted average exercise price (in USD per share)	116.87
Outstanding, ending balance, weighted average exercise price (in USD per share)	$ 47.68
Outstanding, ending balance, weighted average remaining contractual life (years)	2 years 4 months 24 days
Outstanding, ending balance, aggregate intrinsic value | $	$ 90,323
Weighted average grant date fair value, options granted (in USD per share)	$ 54.84

Stockholders' Equity - RSU Acti

Stockholders' Equity - RSU Activity (Details) - $ / shares	1 Months Ended		6 Months Ended
	Jun. 30, 2022	Feb. 28, 2022	Jun. 30, 2022
RSUs (includes PRSUs)
Number of Shares
Outstanding, beginning balance (in shares)			2,560,000
RSUs granted (in shares)			1,392,000
RSUs vested and released (in shares)			(699,000)
RSUs forfeited or canceled (in shares)			(142,000)
Outstanding, ending balance (in shares)	3,111,000		3,111,000
Weighted Average Grant Date Fair Value Per Share
Outstanding, beginning balance, weighted-average grant date fair value per share (in USD per share)			$ 125.65
RSUs granted, weighted average grant date fair value (in USD per share)			110.97
RSUs vested and released, weighted average grant date fair value (in USD per share)			110.68
RSUs forfeited or canceled, weighted average grant date fair value (in USD per share)			124.59
Outstanding, ending balance, weighted-average grant date fair value per share (in USD per share)	$ 121.84		$ 121.84
PRSUs
Number of Shares
RSUs granted (in shares)	60,963	59,383	120,346

Stockholders' Equity - Stock-ba

Stockholders' Equity - Stock-based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Stock-based Compensation Expense
Total stock-based compensation expense	$ 44,786	$ 24,901	$ 84,179	$ 45,809
Stock options
Stock-based Compensation Expense
Unrecognized stock-based compensation expense	19,422		$ 19,422
Weighted-average amortization period			2 years 4 months 24 days
RSU (excluding PRSUs)
Stock-based Compensation Expense
Unrecognized stock-based compensation expense	344,075		$ 344,075
Weighted-average amortization period			2 years 7 months 6 days
PRSU
Stock-based Compensation Expense
Unrecognized stock-based compensation expense	12,906		$ 12,906
Weighted-average amortization period			2 years 1 month 6 days
ESPP
Stock-based Compensation Expense
Unrecognized stock-based compensation expense	1,635		$ 1,635
Weighted-average amortization period			4 months 24 days
Cost of revenue
Stock-based Compensation Expense
Total stock-based compensation expense	8,538	3,781	$ 16,330	6,886
Research and development
Stock-based Compensation Expense
Total stock-based compensation expense	11,818	6,152	21,963	10,915
Sales and marketing
Stock-based Compensation Expense
Total stock-based compensation expense	14,963	8,208	28,387	14,979
General and administrative
Stock-based Compensation Expense
Total stock-based compensation expense	$ 9,467	$ 6,760	$ 17,499	$ 13,029

Stockholders' Equity - Valuatio

Stockholders' Equity - Valuation Assumptions (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Class of Stock
Closing price of common stock as of grant date (February 28, 2022) (in USD per share)	$ 91.14		$ 91.14
Dividend yield (percent)	0%	0%	0%	0%
Stock options
Class of Stock
Expected term (years)	6 years	6 years	6 years	6 years
Volatility	47%	47%	46%	47%
Risk-free interest rate	3%	1%	1.80%	1.10%
Dividend yield (percent)	0%	0%	0%	0%
PRSUs
Class of Stock
Closing price of common stock as of grant date (February 28, 2022) (in USD per share)	$ 110		$ 110
Expected term (years)			2 years 10 months 2 days
Volatility	0%	0%	48.80%	0%
Risk-free interest rate	0%	0%	1.60%	0%
Dividend yield (percent)	0%	0%	0%	0%

Net Loss Per Share - Basic and

Net Loss Per Share - Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (23,670)	$ (16,530)	$ (57,790)	$ (28,862)
Weighted-average shares used in computing basic loss per share (in shares)	69,748	67,292	69,363	67,008
Weighted-average shares used in computing diluted loss per share (in shares)	69,748	67,292	69,363	67,008
Basic loss per share (in USD per share)	$ (0.34)	$ (0.25)	$ (0.83)	$ (0.43)
Diluted loss per share (in USD per share)	$ (0.34)	$ (0.25)	$ (0.83)	$ (0.43)

Net Loss Per Share - Antidiluti

Net Loss Per Share - Antidilutive Securities Excluded from Computation of Diluted Net Loss Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share
Anti-dilutive securities excluded from calculation of diluted net loss per share (in shares)	10,380	11,110	10,613	11,198
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Anti-dilutive securities excluded from calculation of diluted net loss per share (in shares)	1,698	2,129	1,698	2,129
RSUs (includes PRSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share
Anti-dilutive securities excluded from calculation of diluted net loss per share (in shares)	3,111	2,273	3,111	2,273
Convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share
Anti-dilutive securities excluded from calculation of diluted net loss per share (in shares)	5,571	6,708	5,804	6,796

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Provision for (benefit from) income taxes	$ 332	$ (135)	$ 2,588	$ (652)

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Hosting and telecommunications agreement
Other Commitments [Line Items]
Total commitments under agreements	$ 18.8
Purchase Commitment - Cloud Services Agreement
Other Commitments [Line Items]
Expiring commercial commitment balance	50.5
Commercial commitment to be paid remainder of 2022	9.5
Commercial commitment to be paid in year 2023	$ 41
Maximum | Hosting and telecommunications agreement
Other Commitments [Line Items]
Period for various agreements (in months)	48 months
Convertible Debt
Other Commitments [Line Items]
Debt balance	$ 747.7

Geographical Information - Sche

Geographical Information - Schedule of Revenue and Property and Equipment by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets
Total revenue	$ 189,382	$ 143,782	$ 372,159	$ 281,664
Property and equipment, net	99,994		99,994		$ 77,785
United States
Revenues from External Customers and Long-Lived Assets
Total revenue	170,984	131,257	338,231	257,143
Property and equipment, net	92,448		92,448		68,674
International
Revenues from External Customers and Long-Lived Assets
Total revenue	18,398	$ 12,525	33,928	$ 24,521
Property and equipment, net	$ 7,546		$ 7,546		$ 9,111

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Aug. 01, 2022
Lessee, Lease, Description [Line Items]
Operating lease termination notice, period (in days)	30 days
Data Center
Lessee, Lease, Description [Line Items]
Amount of lease obligation, not yet commenced	$ 4.8
Data Center | Subsequent Event
Lessee, Lease, Description [Line Items]
Amount of lease obligation, not yet commenced		$ 1.4
Operating lease not yet commenced, term of lease (in years)		3 years
Minimum
Lessee, Lease, Description [Line Items]
Operating lease, term of contract (in years)	1 year
Operating lease, extension term (in years)	3 years
Minimum | Data Center
Lessee, Lease, Description [Line Items]
Operating lease not yet commenced, term of lease (in years)	2 years
Maximum
Lessee, Lease, Description [Line Items]
Operating lease, term of contract (in years)	10 years
Operating lease, extension term (in years)	5 years
Maximum | Data Center
Lessee, Lease, Description [Line Items]
Operating lease not yet commenced, term of lease (in years)	3 years

Leases - Lease Cost and Supplem

Leases - Lease Cost and Supplemental Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating lease cost	$ 2,869	$ 2,517	$ 5,769	$ 5,185
Finance lease cost:
Amortization of right-of-use assets	135	544	468	1,261
Interest on finance lease liabilities	0	5	0	18
Total finance lease cost	135	549	468	1,279
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash used in operating leases	(2,829)	(1,370)	(5,538)	(3,408)
Financing cash used in finance leases	0	(119)	0	(575)
Operating leases	264	4,090	584	42,429
Finance leases	$ 0	$ 0	$ 0	$ 0

Leases - Balance Sheet Disclosu

Leases - Balance Sheet Disclosures (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Operating leases
Operating lease right-of-use assets	$ 43,593	$ 48,703
Operating lease liabilities	9,836	9,826
Operating lease liabilities — less current portion	42,186	47,088
Total operating lease liabilities	52,022	56,914
Finance leases
Property and equipment, gross	42,504	42,541
Less: accumulated depreciation and amortization	(42,194)	(41,689)
Property and equipment, net	$ 310	$ 852
Finance Lease, Right-of-Use Asset, Balance Sheet Location [Extensible List]	Property and equipment, net	Property and equipment, net

Leases - Weighted Average Remai

Leases - Weighted Average Remaining Terms and Discount Rates (Details)	Jun. 30, 2022	Dec. 31, 2021
Leases [Abstract]
Weighted average remaining lease term	7 years	7 years 3 months 18 days
Weighted average discount rate	3.20%	3.20%

Leases - Lease Maturities (Deta

Leases - Lease Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Operating Leases
Remaining 2022	$ 5,917
2023	10,458
2024	7,723
2025	5,584
2026	5,716
Thereafter	22,829
Total future minimum lease payments	58,227
Less: imputed interest	(6,205)
Total	$ 52,022	$ 56,914

Uncategorized Items - fivn-2022

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2020-06 [Member]