Appian (APPN) 10-Q 5 Aug 21 2021 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2021	Aug. 02, 2021
Document and Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-38098
Entity Registrant Name	APPIAN CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	54-1956084
Entity Address, Address Line One	7950 Jones Branch Drive
Entity Address, City or Town	McLean
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	22102
City Area Code	(703)
Local Phone Number	442-8844
Title of 12(b) Security	Class A Common Stock
Trading Symbol	APPN
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 Central Index Key	0001441683
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false
Class A Common Stock
Document and Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		39,582,947
Class B Common Stock
Document and Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		31,499,516

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 131,279	$ 112,462
Short-term investments and marketable securities	111,324	109,826
Accounts receivable, net of allowance of $1,400 as of each of June 30, 2021 and December 31, 2020	82,301	97,278
Deferred commissions, current	20,162	17,899
Prepaid expenses and other current assets	28,074	27,955
Total current assets	373,140	365,420
Property and equipment, net	34,064	35,404
Long-term investments	7,048	36,120
Goodwill	4,707	4,862
Intangible assets, net of accumulated amortization of $623 and $429 as of June 30, 2021 and December 31, 2020, respectively	1,480	1,744
Operating right-of-use assets	30,528	30,659
Deferred commissions, net of current portion	39,275	34,198
Deferred tax assets	607	489
Other assets	3,066	3,625
Total assets	493,915	512,521
Current liabilities
Accounts payable	5,020	2,967
Accrued expenses	7,276	5,821
Accrued compensation and related benefits	25,699	22,981
Deferred revenue, current	113,805	116,256
Operating lease liabilities, current	7,854	6,923
Other current liabilities	6	940
Total current liabilities	159,660	155,888
Operating lease liabilities, net of current portion	50,185	51,194
Deferred revenue, net of current portion	2,905	3,886
Deferred tax liabilities	35	70
Other non-current liabilities	4,784	4,878
Total liabilities	217,569	215,916
Stockholders’ equity
Additional paid-in capital	485,079	470,498
Accumulated other comprehensive loss	(2,438)	(5,010)
Accumulated deficit	(206,302)	(168,890)
Total stockholders’ equity	276,346	296,605
Total liabilities and stockholders’ equity	493,915	512,521
Class A Common Stock
Stockholders’ equity
Common stock	4	4
Class B Common Stock
Stockholders’ equity
Common stock	$ 3	$ 3

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Allowance for doubtful accounts	$ 1,400	$ 1,400
Finite-lived intangible assets, accumulated amortization	$ 623	$ 429
Class A Common Stock
Common stock, par value (in usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares outstanding (in shares)	39,581,079	38,971,324
Common stock, shares issued (in shares)	39,581,079	38,971,324
Class B Common Stock
Common stock, par value (in usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares outstanding (in shares)	31,499,516	31,707,866
Common stock, shares issued (in shares)	31,499,516	31,707,866

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue
Total revenue	$ 82,999	$ 66,775	$ 171,854	$ 145,639
Cost of revenue
Total cost of revenue	25,835	21,156	49,364	45,275
Gross profit	57,164	45,619	122,490	100,364
Operating expenses
Sales and marketing	40,520	29,086	76,504	63,258
Research and development	23,862	17,178	44,552	33,216
General and administrative	17,358	11,450	36,500	24,591
Total operating expenses	81,740	57,714	157,556	121,065
Operating loss	(24,576)	(12,095)	(35,066)	(20,701)
Other (income) expense
Other (income) expense, net	(1,081)	(682)	1,812	2,432
Interest expense	80	128	161	271
Total other (income) expense	(1,001)	(554)	1,973	2,703
Loss before income taxes	(23,575)	(11,541)	(37,039)	(23,404)
Income tax expense	250	274	373	80
Net loss	$ (23,825)	$ (11,815)	$ (37,412)	$ (23,484)
Net loss per share:
Basic (in dollars per share)	$ (0.34)	$ (0.17)	$ (0.53)	$ (0.35)
Diluted (in dollars per share)	$ (0.34)	$ (0.17)	$ (0.53)	$ (0.35)
Weighted average common shares outstanding:
Basic (in shares)	70,952,917	68,369,823	70,842,263	67,949,270
Diluted (in shares)	70,952,917	68,369,823	70,842,263	67,949,270
Subscriptions
Revenue
Total revenue	$ 56,946	$ 41,418	$ 120,712	$ 91,854
Cost of revenue
Total cost of revenue	6,860	4,701	12,714	10,084
Professional services
Revenue
Total revenue	26,053	25,357	51,142	53,785
Cost of revenue
Total cost of revenue	$ 18,975	$ 16,455	$ 36,650	$ 35,191

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (23,825)	$ (11,815)	$ (37,412)	$ (23,484)
Comprehensive (loss) income, net of income taxes
Foreign currency translation adjustment	(1,474)	(214)	2,541	(197)
Unrealized gains on available-for-sale securities	23	0	31	0
Total other comprehensive loss, net of income taxes	$ (25,276)	$ (12,029)	$ (34,840)	$ (23,681)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive (Loss) Income	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2019		67,468,022
Beginning balance at Dec. 31, 2019	$ 205,237	$ 6	$ 340,929	$ (285)	$ (135,413)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(11,669)				(11,669)
Issuance of common stock to directors (in shares)		1,946
Vesting of restricted stock units (in shares)		46,031
Exercise of stock options (in shares)		129,082
Exercise of stock options	670		670
Stock-based compensation expense	3,476		3,476
Other comprehensive income (loss)	17			17
Ending balance (in shares) at Mar. 31, 2020		67,645,081
Ending balance at Mar. 31, 2020	197,731	$ 6	345,075	(268)	(147,082)
Beginning balance (in shares) at Dec. 31, 2019		67,468,022
Beginning balance at Dec. 31, 2019	205,237	$ 6	340,929	(285)	(135,413)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(23,484)
Ending balance (in shares) at Jun. 30, 2020		69,840,315
Ending balance at Jun. 30, 2020	298,802	$ 7	458,174	(482)	(158,897)
Beginning balance (in shares) at Mar. 31, 2020		67,645,081
Beginning balance at Mar. 31, 2020	197,731	$ 6	345,075	(268)	(147,082)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(11,815)				(11,815)
Issuance of common stock from public offering, net of issuance costs (in shares)		1,931,206
Issuance of common stock from public offering, net of issuance costs	107,915	$ 1	107,914
Issuance of common stock to directors (in shares)		2,296
Vesting of restricted stock units (in shares)		13,567
Exercise of stock options (in shares)		248,165
Exercise of stock options	1,571		1,571
Stock-based compensation expense	3,614		3,614
Other comprehensive income (loss)	(214)			(214)
Ending balance (in shares) at Jun. 30, 2020		69,840,315
Ending balance at Jun. 30, 2020	298,802	$ 7	458,174	(482)	(158,897)
Beginning balance (in shares) at Dec. 31, 2020		70,679,190
Beginning balance at Dec. 31, 2020	296,605	$ 7	470,498	(5,010)	(168,890)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(13,587)				(13,587)
Issuance of common stock to directors (in shares)		960
Vesting of restricted stock units (in shares)		56,326
Exercise of stock options (in shares)		88,269
Exercise of stock options	625		625
Stock-based compensation expense	7,894		7,894
Other comprehensive income (loss)	4,023			4,023
Ending balance (in shares) at Mar. 31, 2021		70,824,745
Ending balance at Mar. 31, 2021	295,560	$ 7	479,017	(987)	(182,477)
Beginning balance (in shares) at Dec. 31, 2020		70,679,190
Beginning balance at Dec. 31, 2020	296,605	$ 7	470,498	(5,010)	(168,890)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (37,412)
Exercise of stock options (in shares)	299,920
Ending balance (in shares) at Jun. 30, 2021		71,080,595
Ending balance at Jun. 30, 2021	$ 276,346	$ 7	485,079	(2,438)	(206,302)
Beginning balance (in shares) at Mar. 31, 2021		70,824,745
Beginning balance at Mar. 31, 2021	295,560	$ 7	479,017	(987)	(182,477)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(23,825)				(23,825)
Issuance of common stock to directors (in shares)		1,175
Vesting of restricted stock units (in shares)		43,024
Exercise of stock options (in shares)		211,651
Exercise of stock options	1,464		1,464
Stock-based compensation expense	4,598		4,598
Other comprehensive income (loss)	(1,451)			(1,451)
Ending balance (in shares) at Jun. 30, 2021		71,080,595
Ending balance at Jun. 30, 2021	$ 276,346	$ 7	$ 485,079	$ (2,438)	$ (206,302)

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net loss	$ (37,412)	$ (23,484)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,561	2,980
Bad debt expense	32	200
Loss on disposal of property and equipment	0	22
Change in fair value of available-for-sale securities	(31)	0
Deferred income taxes	(144)	(168)
Stock-based compensation	12,492	7,090
Changes in assets and liabilities:
Accounts receivable	16,720	(2,084)
Prepaid expenses and other assets	243	1,922
Deferred commissions	(7,340)	(295)
Accounts payable and accrued expenses	3,000	(1,674)
Accrued compensation and related benefits	2,808	2,575
Other current and non-current liabilities	(563)	1,271
Deferred revenue	(1,791)	2,310
Operating lease liabilities	52	2,378
Net cash used in operating activities	(9,373)	(6,957)
Cash flows from investing activities:
Proceeds from sale of investments	27,604	0
Payments for acquisitions, net of cash acquired	0	(6,138)
Purchases of property and equipment	(1,027)	(686)
Net cash provided by (used in) investing activities	26,577	(6,824)
Cash flows from financing activities:
Principal payments on finance leases	0	(716)
Proceeds from public offering, net of underwriting discounts	0	108,260
Payments of costs related to public offerings	0	(18)
Proceeds from exercise of common stock options	2,089	2,242
Net cash provided by financing activities	2,089	109,768
Effect of foreign exchange rate changes on cash and cash equivalents	(476)	404
Net increase in cash and cash equivalents	18,817	96,391
Cash and cash equivalents, beginning of period	112,462	159,755
Cash and cash equivalents, end of period	131,279	256,146
Supplemental disclosure of cash flow information:
Cash paid for interest	173	88
Cash paid for income taxes	$ 806	$ 139

Organization and Description of

Organization and Description of Business	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Organization and Description of Business	1. Organization and Description of Business Appian Corporation (together with its subsidiaries, “Appian,” the “Company,” “we,” or “our”) helps organizations build applications and workflows rapidly, with a low-code automation platform. Combining people, technologies, and data in a single workflow, Appian can help companies maximize their resources and improve business results. Many of the world’s largest organizations use Appian applications to improve customer experience, achieve operational excellence, and simplify global risk management and compliance. We were incorporated in the state of Delaware in August 1999. We are headquartered in McLean, Virginia and operate in Canada, Switzerland, the United Kingdom, France, Germany, the Netherlands, Italy, Australia, Spain, Singapore, and Sweden.

Significant Accounting Policies

Significant Accounting Policies	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Significant Accounting Policies	2. Significant Accounting Policies Basis of Presentation The accompanying unaudited condensed consolidated financial statements and footnotes have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) as contained in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) for interim financial information. In the opinion of management, the interim financial information includes all adjustments of a normal recurring nature necessary for a fair presentation of the results of operations, financial position, changes in stockholders’ equity, and cash flows. The results of operations for the current period are not necessarily indicative of the results for the full year or the results for any future periods. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related footnotes included in our Annual Report on Form 10-K for the year ended December 31, 2020, filed with the Securities and Exchange Commission (the “SEC”) on February 18, 2021. Use of Estimates The preparation of our condensed consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and judgments that affect the amounts reported in these condensed consolidated financial statements and accompanying notes. Although we believe the estimates we use are reasonable, due to the inherent uncertainty involved in making these estimates, actual results reported in future periods could differ from those estimates. Significant estimates embedded in the condensed consolidated financial statements include revenue recognition, income taxes and the related valuation allowance, the valuation of goodwill and intangible assets, leases, costs to obtain a contract with a customer, the valuation of financial instruments, and stock-based compensation. The ongoing outbreak of the novel coronavirus disease ("COVID-19") has resulted in the declaration of a global pandemic and introduced a level of disruption and uncertainty into the financial markets and global economy. While we continue to monitor the developments surrounding the pandemic, as of the date of issuance of these financial statements, we are not aware of any specific events or circumstances that would require us to update our estimates, assumptions, and judgments or revise the carrying value of our assets or liabilities. We cannot estimate the impacts COVID-19 will have on our business going forward as such impacts will be largely dependent upon a number of factors outside of our control including the extent and duration of the outbreak as well as any mitigating actions which may be undertaken by global governments and the general public. Principles of Consolidation The accompanying condensed consolidated financial statements include the accounts of Appian and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. Public Offering In June 2020, we completed an underwritten public offering of 2,500,000 shares of our Class A common stock, of which 1,931,206 shares of Class A common stock were sold by us and 568,794 shares of Class A common stock were sold by existing stockholders. The underwriter purchased the shares from us and the selling stockholders at a price of $56.50 per share. Our net proceeds from the offering were $107.9 million, after deducting underwriting discounts and commissions and offering expenses. We did not receive any of the proceeds from the sale of shares by the selling stockholders. Revenue Recognition Refer to Note 3 for a detailed discussion on specific revenue recognition principles related to our major revenue streams. Cost of Revenue Subscriptions Cost of subscriptions revenue consists primarily of fees paid to our third-party managed hosting providers and other third-party service providers, personnel costs such as payroll and benefits for our technology operations and customer support teams, and allocated facility costs and overhead. Professional Services Cost of professional services revenue includes all direct and indirect costs to deliver our professional services and training, including employee compensation for our global professional services and training personnel, third-party contractor costs, allocated facility costs and overhead, and the costs of billable expenses such as travel and lodging. The unpredictability of the timing of entering into significant professional services agreements sold on a standalone basis may cause significant fluctuations in our quarterly financial results and allocated facility costs and overhead. Concentration of Credit and Customer Risk Our financial instruments exposed to concentration of credit and customer risk consist primarily of cash and cash equivalents, trade accounts receivable, and our short- and long-term investments. Deposits held with banks may exceed the amount of insurance provided on such deposits. We believe the financial institutions holding our cash deposits are financially sound and, accordingly, minimal credit risk exists with respect to these balances. With regard to our customers, credit evaluation and account monitoring procedures are used to minimize the risk of loss. We believe no additional credit risk beyond amounts provided for collection loss are inherent in accounts receivable. Revenue generated from government agencies represented 19.8% and 20.4% of our revenue for the three and six months ended June 30, 2021, respectively, of which the top three U.S. federal government agencies generated 6.5% of our revenue for each of the three and six months ended June 30, 2021. Additionally, 35.3% and 33.7% of our revenue during the three and six months ended June 30, 2021, respectively, was generated from foreign customers. Revenue generated from government agencies represented 19.0% and 16.8% of our revenue for the three and six months ended June 30, 2020, respectively, of which the top three U.S. federal government agencies generated 7.6% and 6.7% of our revenue for the three and six months ended June 30, 2020, respectively. Additionally, 36.8% and 35.0% of our revenue during the three and six months ended June 30, 2020, respectively, was generated from foreign customers. Cash and Cash Equivalents We consider all highly liquid investments with an original or remaining maturity of three months or less at the date of purchase, as well as overnight repurchase agreements, to be cash equivalents. Accounts Receivable and Allowance for Doubtful Accounts Accounts receivable are stated at realizable value, net of an allowance for doubtful accounts. The allowance for doubtful accounts is based on our assessment of the collectability of accounts and incorporates an estimation of expected lifetime credit losses on our receivables. We regularly review the composition of the accounts receivable aging, historical bad debts, changes in payment patterns, customer creditworthiness, and current economic trends. If the financial condition of our customers were to deteriorate, resulting in their inability to make required payments, additional provisions for doubtful accounts would be required and would increase bad debt expense. There was no increase in the allowance for doubtful accounts from December 31, 2020 to June 30, 2021. Assets Recognized from the Costs to Obtain a Contract with a Customer We capitalize the incremental costs of obtaining a contract with a customer, including sales commissions paid to our direct sales force, that are incremental costs to obtaining customer contracts. These costs are recorded as deferred commissions in the condensed consolidated balance sheets. Costs to obtain a contract for a new customer or upsell are amortized over an estimated economic life of five years as sales commissions on initial sales are not commensurate with sales commissions on contract renewals. We determine the estimated economic life based on both qualitative and quantitative factors such as expected renewals, product life cycles, contractual terms, and customer attrition. We periodically review the carrying amount of deferred contract acquisition costs to determine whether events or changes in circumstances have occurred that could impact the estimated economic life. Commissions paid relating to contract renewals are deferred and amortized over the related renewal period. We also capitalize the incremental fringe benefits associated with commission expenses paid to our direct sales force. Costs to obtain a contract for professional services arrangements are expensed as incurred as the contractual period of our professional services arrangements are one year or less. Amortization associated with commission expense is recorded to sales and marketing costs in our condensed consolidated statements of operations. Commission expense was $7.5 million and $14.3 million for the three and six months ended June 30, 2021, respectively. Commission expense was $5.8 million and $11.1 million for the three and six months ended June 30, 2020, respectively. Property and Equipment Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation is computed using the straight-line method over the estimated useful lives of the assets. Significant additions or improvements extending the useful life of an asset are capitalized, while repairs and maintenance costs which do not significantly improve the related assets or extend their useful lives are charged to expense as incurred. The following table outlines the useful lives of our major asset categories: Asset Category Useful Life (in years) Computer software 3 Computer hardware 3 Equipment 5 Office furniture and fixtures 10 Leasehold improvements (a) (a) Leasehold improvements have an estimated useful life of the shorter of the useful life of the assets or the lease term. Impairment of Long-Lived Assets Long-lived assets and certain intangible assets are reviewed for impairment whenever events or circumstances indicate the carrying amount of an asset may not be recoverable through undiscounted cash flows from the use of the assets. If such assets are considered to be impaired, the assets are written down to their estimated fair value. No indicators of impairment were identified for the three and six months ended June 30, 2021 and 2020. Investments and Fair Value of Financial Instruments Refer to Note 14 for a detailed discussion on our policies specific to investments and determining fair value. Stock-Based Compensation We account for stock-based compensation expense related to stock-based awards based on the estimated fair value of the award on the grant date. We calculate the fair value of stock options containing only a service condition using the Black-Scholes option pricing model. The fair value of restricted stock units ("RSUs") is based on the closing market price of our common stock on the Nasdaq Global Market on the date of grant. For service-based awards such as RSUs, stock-based compensation expense is recognized on a straight-line basis over the requisite service period. For performance-based awards, stock-based compensation expense is recognized using the accelerated attribution method based on the probability of satisfying the performance condition. For awards that contain market conditions, compensation expense is measured using a Monte Carlo simulation and recognized using the accelerated attribution method over the derived service period based on the expected market performance as of the grant date. We account for forfeitures as they occur rather than estimating expected forfeitures. Leases Refer to Note 4 for a detailed discussion on our policies specific to leasing arrangements. Recent Accounting Pronouncements Adopted In December 2019, the FASB issued Accounting Standards Update ("ASU") 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which amends and aims to simplify accounting disclosure requirements regarding a number of topics including, but not limited to, intraperiod tax allocations, accounting for deferred taxes when there are changes in the consolidation of certain investments, tax basis step ups in an acquisition, and the application of effective rate changes during interim periods. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. The adoption of the new guidance did not have a material impact on our consolidated financial statements. Not Yet Adopted In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform - Facilitation of the Effects of Reference Rate Reform on Financial Reporting (Topic 848), which provides temporary optional expedients and exceptions to the GAAP guidance on contract modifications to ease the financial reporting burdens of the expected market transition from LIBOR and other interbank offered rates to alternative reference rates such as the Secured Overnight Financing Rate ("SOFR"). This guidance is effective upon issuance and generally can be applied through the end of calendar year 2022. We are currently evaluating the impact and applicability of this new standard.

Revenue

Revenue	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue	3. Revenue Revenue Recognition We generate subscriptions revenue primarily through the sale of software as a service ("SaaS") subscriptions bundled with maintenance and support and hosting services as well as term license subscriptions bundled with maintenance and support. We generate professional services revenue from fees for our consulting services, including application development and deployment assistance as well as training related to our platform. The following table summarizes revenue from contracts with customers for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 SaaS subscriptions $ 42,486 $ 29,580 $ 81,539 $ 57,970 Term license subscriptions 9,323 7,379 29,176 25,172 Maintenance and support 5,137 4,459 9,997 8,712 Professional services 26,053 25,357 51,142 53,785 Total revenue $ 82,999 $ 66,775 $ 171,854 $ 145,639 Performance Obligations and Timing of Revenue Recognition We primarily sell products and services that fall into the categories discussed below. Each category contains one or more performance obligations that are either (1) capable of being distinct (i.e., the customer can benefit from the product or service on its own or together with readily available resources, including those purchased separately from us) and distinct within the context of the contract (i.e., separately identified from other promises in the contract) or (2) a series of distinct products or services that are substantially the same and have the same pattern of transfer to the customer. Our term license subscriptions are delivered at a point in time while our SaaS subscriptions, maintenance and support, and professional services are delivered over time. Subscriptions Revenue Subscriptions revenue is primarily related to (1) SaaS subscriptions bundled with maintenance and support and hosting services and (2) term license subscriptions bundled with maintenance and support. We generally charge subscription fees on a per-user basis or through non-user based single application licenses. We bill customers and collect payment for subscriptions to our platform in advance on an annual, quarterly, or monthly basis. In certain instances, our customers have paid their entire contract up front. SaaS Subscriptions We generate cloud-based subscriptions revenue primarily from the sales of subscriptions to access our cloud offering, together with related support services to our customers. We perform all required maintenance and support for our cloud offering. Revenue is recognized on a ratable basis over the contract term beginning on the date the service is made available to the customer. Our cloud-based subscription contracts generally have a term of one Term License Subscriptions Our term license subscriptions revenue is derived from customers with on-premises installations of our platform pursuant to contracts that were historically one Maintenance and Support Maintenance and support subscriptions include both technical support and when-and-if-available software upgrades, which are treated as a single performance obligation as they are considered a series of distinct services that are substantially the same and have the same duration and measure of progress. Revenue from maintenance and support is recognized ratably over the contract period, which is the period over which the customer has continuous access to maintenance and support. Professional Services Revenue Our professional services revenue is comprised of fees for consulting services, including application development and deployment assistance as well as training services related to our platform. Our professional services are considered distinct performance obligations when sold standalone or with other products. Consulting Services We sell consulting services to assist customers in planning and executing the deployment of our software. Customers are not required to use consulting services to fully benefit from the software. Consulting services are regularly sold on a standalone basis and either (1) under a fixed-fee arrangement or (2) on a time and materials basis. Consulting contracts are each considered separate performance obligations because they do not integrate with each other or with other products and services to deliver a combined output to the customer, do not modify or customize (or are not modified or customized by) each other or other products and services, and do not affect the customer's ability to use the other consulting offerings or other products and services. Revenue under consulting contracts is recognized over time as services are delivered. For time and materials-based consulting contracts, we have elected the practical expedient of recognizing revenue upon invoicing since the invoiced amount corresponds directly to the value of our service to date. Training Services We sell various training services to our customers. Training services are sold in the form of prepaid training credits that are redeemed based on a fixed rate per course. Training revenue is recognized when the associated training services are delivered. Significant Judgments and Estimates Determining the Transaction Price The transaction price includes both fixed and variable consideration. Variable consideration is included in the transaction price to the extent it is probable a significant reversal will not occur. The amount of variable consideration excluded from the transaction price for the three and six months ended June 30, 2021 and 2020 was insignificant. Our estimates of variable consideration are also subject to subsequent true-up adjustments and may result in changes to transaction prices; however, such true-up adjustments are not expected to be material. Allocating the Transaction Price Based on Standalone Selling Prices ("SSP") We allocate the transaction price to each performance obligation in a contract based on its relative SSP. The SSP is the observable price at which we sell the product or service separately. In the absence of observable pricing, we estimate SSP using the residual approach. We establish SSP as follows: 1. SaaS subscriptions - Given the highly variable selling price of our SaaS subscriptions, we establish the SSP of our SaaS subscriptions using a residual approach after first determining the SSP of consulting and training services. We have concluded the residual approach to estimating SSP of our SaaS subscriptions is an appropriate allocation of the transaction price. 2. Term license subscriptions - Given the highly variable selling price of our term license subscriptions, we have established SSP of term license subscriptions using a residual approach after first determining the SSP of maintenance and support. Maintenance and support is sold on a standalone basis in conjunction with renewals of our legacy perpetual software licenses and within a narrow range of the net license fee. Because an economic relationship exists between the license and maintenance and support, we have concluded the residual approach to estimating SSP of term license subscriptions is an appropriate allocation of the transaction price. 3. Maintenance and support - We establish the SSP of maintenance and support as a percentage of the stated net subscription fee based on observable pricing of maintenance and support renewals from our legacy perpetual software licenses. 4. Consulting and training services - The SSP of consulting and training services is established based on the observable pricing of standalone sales within each geographic region where the services are sold. Contract Balances Timing may differ between the satisfaction of performance obligations and the invoicing and collection of amounts related to our contracts with customers. Contract assets primarily relate to unbilled amounts for contracts with customers for which the amount of revenue recognized exceeds the amount billed to the customer. Contract assets are transferred to accounts receivable when the right to invoice becomes unconditional. As of June 30, 2021 and December 31, 2020, contract assets of $16.2 million and $20.1 million, respectively, are included in the Prepaid expenses and other current assets and Other assets line items in our condensed consolidated balance sheets. Contract liabilities consist of deferred revenue and include payments received in advance of the satisfaction of performance obligations. Deferred revenue is then recognized as the revenue recognition criteria are met. Deferred revenue that will be recognized during the succeeding 12-month period is recorded as current, and the remaining deferred revenue is recorded as non-current. For the six months ended June 30, 2021, we recognized $81.1 million of revenue that was included in the deferred revenue balance as of December 31, 2020. Transaction Price Allocated to the Remaining Performance Obligations As of June 30, 2021, we had an aggregate transaction price of $223.8 million allocated to unsatisfied performance obligations. We expect to recognize $201.3 million of this balance as revenue over the next 24 months with the remaining amount recognized thereafter.

Leases

Leases	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Leases	4. Leases At the inception of an arrangement, we determine whether the arrangement is or contains a lease based on the unique facts and circumstances present and the classification of the lease. Operating leases with a term greater than one year are recognized on the balance sheet as right-of-use ("ROU") assets, lease liabilities, and, if applicable, long-term lease liabilities. ROU assets represent our right to use an underlying asset for the lease term, and lease liabilities represent our obligation to make lease payments arising from the lease. We have elected not to recognize on our condensed consolidated balance sheets leases with a term of one year or less. For contracts with lease and non-lease components, we have elected not to allocate the contract consideration but rather to account for the lease and non-lease components as a single lease component. Lease liabilities and their corresponding ROU assets are recorded based on the present value of lease payments over the expected lease term. The implicit rates within most of our leases are generally not determinable; therefore, we use the incremental borrowing rate at the lease commencement date to determine the present value of lease payments. The determination of our incremental borrowing rate requires judgment and is estimated for each lease based on the rate we would have to pay for a collateralized loan with the same term and payments as the lease. We consider various factors, including our level of collateralization, estimated credit rating, and the currency in which the lease is denominated. Operating lease ROU assets also include any lease prepayments, offset by lease incentives. Certain of our leases include options to extend or terminate the lease. An option to extend the lease is considered in connection with determining the ROU asset and lease liability when it is reasonably certain we will exercise that option while an option to terminate is considered unless it is reasonably certain we will not exercise the option. For certain equipment leases, we apply a portfolio approach to effectively account for the operating lease ROU assets and liabilities. Expense for operating leases is recognized on a straight-line basis over the lease term as an operating expense while the expense for finance leases is recognized as depreciation expense and interest expense. We have lease agreements which require payments for lease and non-lease components (i.e., common area maintenance) that are accounted for as a single lease component. Variable lease payment amounts that cannot be determined at the commencement of the lease, such as maintenance costs based on future obligations, are not included in ROU assets or lease liabilities but rather are expensed as incurred and recorded as variable lease expense. As of June 30, 2021, we have operating leases for corporate offices. Our operating leases have remaining lease terms of 1 year to 11 years, some of which include options to extend the leases for up to 10 years. In April 2018, we entered into a lease agreement with respect to 176,222 square feet of office space in McLean, Virginia for a new corporate headquarters. The initial term of the lease was 150 months. We took initial possession of the first phase of the new headquarters in October 2018 and began to recognize rent expense as of that date. In February 2019, we took possession of an additional 28,805 square feet of adjacent office space. In January 2020, we entered into an amendment which adjusted the original terms of the headquarters lease. Under this amendment, we exercised an option to expand occupancy, adding 34,158 square feet of office space. Occupancy of the added space commenced on October 14, 2020. Pursuant to the guidance of ASC 842, Leases , the amendment is considered a modification to the original lease and is accounted for as a separate contract because it represents a new ROU asset and the lease costs on the new space are charged at prevailing market rates. Effective July 1, 2020, we took possession of the space, began to recognize rent expense, and recorded a $7.9 million ROU asset and lease liability on our condensed consolidated balance sheets. In October 2020, we paid the full $2.7 million principal balances outstanding under our finance leases pursuant to an option permitting us to pay such balances in full at any time. As of the date of the paydown, the titles to the assets were transferred to us, the associated lease liabilities were retired, the carrying values of the purchased assets were adjusted, and the assets were reclassified from finance leases to property and equipment, net on the condensed consolidated balance sheets. The following table sets forth the components of lease expense for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Operating lease cost $ 1,695 $ 1,408 $ 3,325 $ 3,276 Finance lease costs: Amortization of right-of-use assets — 372 — 745 Interest on lease liabilities — 46 — 97 Short-term lease cost 13 195 54 380 Variable lease cost 772 34 797 217 Total $ 2,480 $ 2,055 $ 4,176 $ 4,715 Supplemental balance sheet information related to operating leases as of June 30, 2021 and December 31, 2020 was as follows (in thousands, except for lease term and discount rate): As of June 30, 2021 December 31, 2020 Operating right-of-use assets $ 30,528 $ 30,659 Operating lease liabilities, current $ 7,854 $ 6,923 Operating lease liabilities, net of current portion 50,185 51,194 Total operating lease liabilities $ 58,039 $ 58,117 Weighted average remaining lease term (in years) 10.0 10.6 Weighted average discount rate 9.5 % 9.6 % For the three and six months ended June 30, 2021, amortization of operating ROU assets totaled $0.4 million and $0.7 million, respectively. For the three and six months ended June 30, 2020, amortization of operating ROU assets totaled $0.2 million and $0.9 million, respectively. For the three and six months ended June 30, 2021, interest expense on operating lease liabilities totaled $0.5 million and $0.9 million, respectively. For the three and six months ended June 30, 2020, interest expense on operating lease liabilities totaled $1.0 million and $1.4 million, respectively. Supplemental cash flow information related to leases for the six months ended June 30, 2021 and 2020 was as follows (in thousands): Six Months Ended June 30, 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash outflows for operating leases $ 3,503 $ 1,044 Operating cash outflows for finance leases — 97 Financing cash outflows for finance leases — 716 A summary of our future minimum lease commitments under non-cancellable leases as of June 30, 2021 is as follows (in thousands): Operating Leases 2021 (excluding the six months ended June 30, 2021) $ 4,070 2022 8,252 2023 8,249 2024 8,648 2025 9,343 2026 9,369 Thereafter 48,775 Total lease payments 96,706 Less: imputed interest (38,667) Total $ 58,039

Property and Equipment, net

Property and Equipment, net	6 Months Ended
	Jun. 30, 2021
Property, Plant and Equipment [Abstract]
Property and Equipment, net	5. Property and Equipment, net Property and equipment, net consisted of the following as of June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 December 31, 2020 Leasehold improvements $ 36,394 $ 36,263 Office furniture and fixtures 2,522 2,521 Computer hardware 5,399 4,535 Computer software 1,354 1,352 Equipment 58 49 Property and equipment, gross 45,727 44,720 Less: accumulated depreciation (11,663) (9,316) Property and equipment, net $ 34,064 $ 35,404 Depreciation expense totaled $1.2 million and $2.4 million for the three and six months ended June 30, 2021, respectively. There were no disposals or retirements recorded during the three and six months ended June 30, 2021. Depreciation expense totaled $1.4 million and $2.8 million for the three and six months ended June 30, 2020. There were nominal disposals recorded during the three months ended June 30, 2020. During the six months ended June 30, 2020, we retired $1.3 million of leasehold improvements, $0.1 million of computer hardware, and $0.1 million of office furniture and fixtures and equipment. Nominal losses on disposal were recorded for the three and six months ended June 30, 2020.

Accrued Expenses

Accrued Expenses	6 Months Ended
	Jun. 30, 2021
Payables and Accruals [Abstract]
Accrued Expenses	6. Accrued Expenses Accrued expenses consisted of the following as of June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 December 31, 2020 Accrued hosting costs $ 2,093 $ 1,229 Accrued legal costs 1,112 760 Accrued contract labor costs 884 908 Accrued taxes payable 579 527 Accrued audit and tax expenses 345 370 Accrued marketing and tradeshow expenses 420 596 Accrued third party license fees 247 570 Accrued reimbursable employee expenses 291 231 Other accrued expenses 1,305 630 Total $ 7,276 $ 5,821

Debt

Debt	6 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Debt	7. Debt Line of Credit In November 2017, we entered into a $20.0 million revolving line of credit with a lender. The facility matures in November 2022. We may elect whether amounts drawn on the revolving line of credit bear interest at a floating rate per annum equal to either LIBOR or the Prime rate plus an additional interest rate margin that is determined by the availability of the borrowings under the revolving line of credit. The additional interest rate margin will range from 2.00% to 2.50% in the case of LIBOR advances and from 1.00% to 1.50% in the case of Prime rate advances. The revolving line of credit contains an unused facility fee in an amount between 0.15% and 0.25% of the average unused portion of the revolving line of credit, which is payable quarterly. The agreement contains certain customary affirmative and negative covenants and requires us to maintain (i) an adjusted quick ratio of at least 1.35 to 1.00 and (ii) minimum adjusted EBITDA, in the amounts and for the periods set forth in the agreement. Any amounts borrowed under the credit facility are collateralized by substantially all of our assets. We were in compliance with all covenants as of June 30, 2021. As of June 30, 2021, we had no outstanding borrowings under this revolving line of credit, and we had outstanding letters of credit totaling $11.2 million in connection with securing our leased office space. We also continue to monitor the LIBOR to SOFR transition, which may result in modification or amendment of our existing revolving line of credit.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	8. Income Taxes The provision for income taxes is based upon the estimated annual effective tax rates for the year applied to the current period income before tax plus the tax effect of any significant or unusual items, discrete events, or changes in tax law. Our operating subsidiaries are exposed to statutory effective tax rates ranging from zero to approximately 32%. Fluctuations in the distribution of pre-tax income among our operating subsidiaries can lead to fluctuations of the effective tax rate in the condensed consolidated financial statements. For the three and six months ended June 30, 2021, the actual effective tax rates were (1.1)% and (1.0)%, respectively. For the three and six months ended June 30, 2020, the actual effective tax rates were (2.4)% and (0.3)%, respectively. We assess uncertain tax positions in accordance with ASC 740-10, Accounting for Uncertainties in Income Taxes . As of June 30, 2021, our net unrecognized tax benefits totaled $2.3 million, which if recognized would result in no net effect on the effective tax rate due to a valuation allowance. The amount of reasonably possible unrecognized tax benefits that could decrease over the next 12 months due to the expiration of certain statutes of limitations or settlements of tax audits is not material to our condensed consolidated financial statements. We file income tax returns in the United States federal jurisdiction and in many states and foreign jurisdictions. The tax years 2017 through 2020 remain open to examination by the major taxing jurisdictions to which we are subject. We are not currently under examination by the Internal Revenue Service for any open tax years. In response to the COVID-19 pandemic, the United States passed the Coronavirus Aid, Relief, and Economic Security ("CARES") Act in March 2020. The CARES Act includes various income and payroll tax measures. Pursuant to these measures, we have elected the option to defer the deposit and payment of our share of social security taxes that would otherwise be due between March 27, 2020 and December 31, 2020. Under the CARES Act, half of these deferred payments are due by the end of fiscal year 2021 while the other half are due by the end of fiscal year 2022. At this time, beyond the above deferral, the CARES Act is not expected to materially impact our financial statements, but we continue to evaluate potential impacts.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	9. Stock-Based Compensation Equity Incentive Plans In May 2017, our Board of Directors adopted, and our stockholders approved, the 2017 Equity Incentive Plan (the “2017 Plan”), which became effective as of the date of the final prospectus for our initial public offering. The 2017 Plan provides for the grant of incentive stock options to employees and for the grant of nonstatutory stock options, restricted stock awards, RSUs, stock appreciation rights, performance-based stock awards, and other forms of equity compensation to employees, including officers, non-employee directors, and consultants. We initially reserved 6,421,442 shares of Class A common stock for issuance under the 2017 Plan, which included 421,442 shares that remained available for issuance under our 2007 Stock Option Plan (the “2007 Plan”) at the time the 2017 Plan became effective. The number of shares reserved under the 2017 Plan increases for any shares subject to outstanding awards originally granted under the 2007 Plan that expire or are forfeited prior to exercise. As a result of the adoption of the 2017 Plan, no further grants may be made under the 2007 Plan. As of June 30, 2021, there were 7,175,469 shares of Class A common stock reserved for issuance under the 2017 Plan, of which 4,223,260 were available to be issued. Stock Options We estimate the fair value of stock options containing only a service condition using the Black-Scholes option pricing model, which requires the use of subjective assumptions, including the expected term of the option, the current price of the underlying stock, the expected stock price volatility, expected dividend yield, and the risk-free interest rate for the expected term of the option. The expected term represents the period of time the stock options are expected to be outstanding. Due to the lack of sufficient historical exercise data to provide a reasonable basis upon which to otherwise estimate the expected term of the stock options, we use the simplified method to estimate the expected term for our stock options. Under the simplified method, the expected term of an option is presumed to be the mid-point between the vesting date and the end of the contractual term. Expected volatility is based on historical volatilities for publicly traded stock of comparable companies over the estimated expected term of the stock options. We assume no dividend yield because dividends are not expected to be paid in the near future, which is consistent with our history of not paying dividends. In May 2019, our Board of Directors granted a stock option to purchase 700,000 shares of our Class A common stock to our Chief Executive Officer (the "2019 CEO Grant") under the 2017 Plan with an exercise price of $33.98 per share. The 2019 CEO Grant is eligible to vest based on the achievement of a stock price appreciation target of our Class A common stock. Specifically, the 2019 CEO Grant vests when shares of our Class A common stock close at or above $84.63 per share for a period equal to or greater than 90 consecutive calendar days or upon the occurrence of a change in control in which the value of our Class A common stock is equal to or greater than $84.63 per share within five years of the grant date. The fair value of the 2019 CEO Grant was determined using a Monte Carlo simulation. The fair value of the award at the grant date was $9.5 million and is amortized over the derived service period of 2.6 years. Effective February 2021, the 2019 CEO Grant has satisfied all of the conditions required to be considered fully vested. As a result, we accelerated the recognition of approximately $3.3 million in stock-based compensation expense in the six months ended June 30, 2021. The following table summarizes stock option activity for the six months ended June 30, 2021: Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (in thousands) Outstanding at January 1, 2021 3,399,240 $ 14.06 4.9 $ 503,174 Granted — — — — Exercised (299,920) 6.94 — 33,230 Expired — — — — Forfeited (10,060) 11.62 — — Outstanding at June 30, 2021 3,089,260 $ 14.76 4.4 $ 379,935 Exercisable at June 30, 2021 2,850,280 $ 15.04 4.3 $ 349,747 There were no stock options granted during the six months ended June 30, 2021 and 2020. The total fair value of stock options that vested during the six months ended June 30, 2021 and 2020 was $10.5 million and $1.0 million, respectively. As of June 30, 2021, the total compensation cost related to unvested stock options not yet recognized was $0.2 million, which will be recognized over a weighted average period of 0.8 years. Restricted Stock Units The following table summarizes RSU activity for the six months ended June 30, 2021: Number of Shares Weighted Average Grant Date Fair Value Non-vested and outstanding at January 1, 2021 1,165,003 $ 46.04 Granted 110,008 139.17 Vested (99,350) 46.44 Forfeited (48,965) 63.20 Non-vested and outstanding at June 30, 2021 1,126,696 54.35 As of June 30, 2021, total unrecognized compensation cost related to unvested RSUs was appro ximately $51.8 million, which will be recognized over a weighted average period of 2.2 years. The following table summarizes the components of our stock-based compensation expense by instrument type for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 RSUs $ 4,403 $ 2,475 $ 8,408 $ 4,774 Stock options 40 1,047 3,773 2,131 Common stock awards to Board of Directors 155 92 311 185 Total stock-based compensation expense $ 4,598 $ 3,614 $ 12,492 $ 7,090 Stock-based compensation expense for RSUs, stock options, and issuances of common stock to the Board of Directors is included in the following line items in the accompanying condensed consolidated statements of operations for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Cost of revenue Subscriptions $ 295 $ 229 $ 592 $ 442 Professional services 865 317 1,506 529 Operating expenses Sales and marketing 1,197 657 2,305 1,410 Research and development 1,069 619 2,084 1,172 General and administrative 1,172 1,792 6,005 3,537 Total stock-based compensation expense $ 4,598 $ 3,614 $ 12,492 $ 7,090

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2021
Equity [Abstract]
Stockholders' Equity	10. Stockholders' Equity As of June 30, 2021 , we had authorized 500,000,000 shares of Class A common stock and 100,000,000 shares of Class B common stock, each with a par value of $0.0001 per share, of which 39,581,079 shares of Class A common stock and 31,499,516 shares of Class B common stock were issued and outstanding. The rights of the holders of Class A common stock and Class B common stock are identical, except with respect to voting and conversion rights. The holders of Class A common stock are entitled to one vote per share, and the holders of Class B common stock are entitled to ten votes per share on all matters subject to stockholder vote. The holders of Class B common stock also have approval rights for certain corporate actions. Each share of Class B common stock may be converted into one share of Class A common stock at the option of its holder and will be automatically converted upon transfer thereof, subject to certain exceptions. In addition, upon the date on which the outstanding shares of Class B common stock represent less than 10% of the aggregate voting power of our capital stock, all outstanding shares of Class B common stock shall convert automatically into Class A common stock.

Basic and Diluted Loss per Comm

Basic and Diluted Loss per Common Share	6 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
Basic and Diluted Loss per Common Share	11. Basic and Diluted Loss per Common Share The following outstanding securities, prior to the use of the treasury stock method or the if-converted method, have been excluded from the computation of diluted weighted-average shares outstanding for the respective periods below because they would have been antidilutive: Three and Six Months Ended June 30, 2021 2020 Stock options 3,089,260 4,046,544 Non-vested restricted stock units 1,126,696 1,116,127

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	12. Commitments and Contingencies Contractual Warranty and Indemnification Obligations We provide limited product warranties. Historically, any payments made under these provisions have been immaterial. We also agree to standard indemnification provisions in the ordinary course of business. Pursuant to these provisions, we agree to indemnify, hold harmless, and reimburse the indemnified party for losses suffered or incurred by the indemnified party, generally our customers, in connection with certain intellectual property infringement claims by any third party arising from the use of our products or services in accordance with the agreement. The term of our contractual indemnity provisions often survives termination or expiration of the applicable agreement. We carry insurance that covers certain third-party claims relating to our services and limits our exposure. We have never incurred costs to defend lawsuits or settle claims related to these indemnification provisions. Minimum Purchase Commitments Exclusive of the Amazon Web Services ("AWS") contract discussed in Note 15, we have other non-cancellable agreements for subscription software products that contain provisions stipulating minimum purchase commitments. However, the annual purchase commitments under these contracts are, individually and in the aggregate, immaterial to our condensed consolidated financial statements. Letters of Credit At each of June 30, 2021 and December 31, 2020, we had outstanding letters of credit totaling $11.2 million in connection with securing our leased office space. All letters of credit are secured by our borrowing arrangement as described in Note 7. Legal

Segment and Geographic Informat

Segment and Geographic Information	6 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Segment and Geographic Information	13. Segment and Geographic Information We consider operating segments to be components of our business in which separate financial information is available and evaluated regularly by our Chief Operating Decision Maker ("CODM"). Our CODM, who is our Chief Executive Officer, reviews financial information on a consolidated basis when deciding how to allocate resources and assessing performance. Accordingly, we have determined we have a single reporting segment and operating unit structure. The following table summarizes revenue by geography for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Domestic $ 53,704 $ 42,191 $ 113,986 $ 94,646 International 29,295 24,584 57,868 50,993 Total $ 82,999 $ 66,775 $ 171,854 $ 145,639 With respect to geographic information, revenue is attributed to respective geographies based on the contracting address of the customer. There were no individual foreign countries from which more than 10% of our total revenue was attributable for the three and six months ended June 30, 2021. Revenue from customers attributed to the United Kingdom was 12.4% of our total revenue for each of the three and six months ended June 30, 2020. There were no other individual foreign countries from which more than 10% of our total revenue was attributable for the three and six months ended June 30, 2020. Substantially all of our long-lived assets were held in the United States as of June 30, 2021 and December 31, 2020.

Investments and Fair Value Meas

Investments and Fair Value Measurements	6 Months Ended
	Jun. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Investments and Fair Value Measurements	14. Investments and Fair Value Measurements Fair Value Measurements We use a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. The hierarchy requires us to use observable inputs when available and to minimize the use of unobservable inputs when determining fair value. The three tiers are defined as follows: • Level 1. Observable inputs based on unadjusted quoted prices in active markets for identical assets or liabilities; • Level 2. Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and • Level 3. Unobservable inputs for which there is little or no market data, which require us to develop our own assumptions. The asset or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques maximize the use of relevant observable inputs and minimize the use of unobservable inputs. There were no instruments measured at fair value on a recurring basis using significant unobservable inputs as of June 30, 2021 and December 31, 2020. The valuation techniques that may be used to measure fair value are as follows: • Market approach - Uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; • Income approach - Uses valuation techniques to convert future amounts to a single present amount based on current market expectations about those future amounts; • Cost approach - Based on the amount that currently would be required to replace the service capacity of an asset (i.e., replacement cost). The carrying amounts of our cash and cash equivalents, accounts receivable, accounts payable, and accrued expenses approximate fair value as of June 30, 2021 and December 31, 2020 because of the relatively short duration of these instruments. Investments Our investment portfolio consists largely of debt investments classified as available-for-sale. Changes in the fair value of available-for-sale securities, excluding other-than-temporary impairments, are recorded in other comprehensive income (loss). The components of our investments as of June 30, 2021 are as follows (in thousands): As of June 30, 2021 Fair Value Measurement Balance Sheet Classification Fair Value Level Cost Basis Unrealized Gains (Losses) Market Value Cash and Cash Equivalents Short-Term Investments Long-Term Investments Money market fund Level 1 $ 72,275 $ — $ 72,275 $ 72,275 $ — $ — U.S. Treasury bonds Level 1 24,446 4 24,450 — 24,450 — Commercial paper Level 2 38,432 — 38,432 — 38,432 — Corporate bonds Level 2 29,113 (1) 29,112 — 27,562 1,550 Asset-backed securities Level 2 26,373 5 26,378 — 20,880 5,498 Total investments $ 190,639 $ 8 $ 190,647 $ 72,275 $ 111,324 $ 7,048 At December 31, 2020, our investments consisted of the following (in thousands): As of December 31, 2020 Fair Value Measurement Balance Sheet Classification Fair Value Level Cost Basis Unrealized Gains (Losses) Market Value Cash and Cash Equivalents Short-Term Investments Long-Term Investments Money market fund Level 1 $ 27,150 $ — $ 27,150 $ 27,150 $ — $ — U.S. Treasury bonds Level 1 24,445 (3) 24,442 — 16,273 8,169 Commercial paper Level 2 76,905 — 76,905 16,493 60,412 — Corporate bonds Level 2 34,738 (11) 34,727 — 27,542 7,185 Asset-backed securities Level 2 26,373 (8) 26,365 — 5,599 20,766 Total investments $ 189,611 $ (22) $ 189,589 $ 43,643 $ 109,826 $ 36,120 There were no Level 3 assets held at any point during the three and six months ended June 30, 2021. Additionally, there were no transfers between Levels 1 and 2 during the three and six months ended June 30, 2021. The amortized cost basis and fair value of debt securities as of June 30, 2021, by contractual maturity, are as follows (in thousands): As of June 30, 2021 Cost Basis Fair Value Due in one year or less $ 183,596 $ 183,599 Due after one year through five years 7,043 7,048 Total investments $ 190,639 $ 190,647 Actual maturities may differ from the contractual maturities in the table above because borrowers have the right to call or prepay certain obligations.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	15. Subsequent Events Amazon Web Services Agreement In July 2021, we executed a non-cancellable cloud hosting arrangement with AWS that contains provisions for minimum purchase commitments. Specifically, purchase commitments under the agreement total $131.0 million over five years, including $22.0 million in the first year, $25.0 million in the second year, and $28.0 million in each of the third, fourth, and fifth years. The timing of payments under the agreement may vary, and the total amount of payments may exceed the minimum depending on the volume of services utilized. Acquisition of Lana Labs On August 4, 2021, we completed the acquisition of Lana Labs GMBH, a developer of process mining software, for approximately $31.0 million, net of cash acquired and debt. We financed the transaction with available cash on hand. It is not practicable to disclose the preliminary purchase price allocation for this transaction given the short period of time between the respective acquisition date and the issuance of this Form 10-Q.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements and footnotes have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) as contained in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) for interim financial information. In the opinion of management, the interim financial information includes all adjustments of a normal recurring nature necessary for a fair presentation of the results of operations, financial position, changes in stockholders’ equity, and cash flows. The results of operations for the current period are not necessarily indicative of the results for the full year or the results for any future periods. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related footnotes included in our Annual Report on Form 10-K for the year ended December 31, 2020, filed with the Securities and Exchange Commission (the “SEC”) on February 18, 2021.
Use of Estimates	Use of Estimates The preparation of our condensed consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and judgments that affect the amounts reported in these condensed consolidated financial statements and accompanying notes. Although we believe the estimates we use are reasonable, due to the inherent uncertainty involved in making these estimates, actual results reported in future periods could differ from those estimates. Significant estimates embedded in the condensed consolidated financial statements include revenue recognition, income taxes and the related valuation allowance, the valuation of goodwill and intangible assets, leases, costs to obtain a contract with a customer, the valuation of financial instruments, and stock-based compensation. The ongoing outbreak of the novel coronavirus disease ("COVID-19") has resulted in the declaration of a global pandemic and introduced a level of disruption and uncertainty into the financial markets and global economy. While we continue to monitor the developments surrounding the pandemic, as of the date of issuance of these financial statements, we are not aware of any specific events or circumstances that would require us to update our estimates, assumptions, and judgments or revise the carrying value of our assets or liabilities. We cannot estimate the impacts COVID-19 will have on our business going forward as such impacts will be largely dependent upon a number of factors outside of our control including the extent and duration of the outbreak as well as any mitigating actions which may be undertaken by global governments and the general public.
Principles of Consolidation	Principles of Consolidation The accompanying condensed consolidated financial statements include the accounts of Appian and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
Revenue Recognition	Cost of Revenue Subscriptions Cost of subscriptions revenue consists primarily of fees paid to our third-party managed hosting providers and other third-party service providers, personnel costs such as payroll and benefits for our technology operations and customer support teams, and allocated facility costs and overhead. Professional Services Cost of professional services revenue includes all direct and indirect costs to deliver our professional services and training, including employee compensation for our global professional services and training personnel, third-party contractor costs, allocated facility costs and overhead, and the costs of billable expenses such as travel and lodging. The unpredictability of the timing of entering into significant professional services agreements sold on a standalone basis may cause significant fluctuations in our quarterly financial results and allocated facility costs and overhead. Revenue Recognition We generate subscriptions revenue primarily through the sale of software as a service ("SaaS") subscriptions bundled with maintenance and support and hosting services as well as term license subscriptions bundled with maintenance and support. We generate professional services revenue from fees for our consulting services, including application development and deployment assistance as well as training related to our platform. We primarily sell products and services that fall into the categories discussed below. Each category contains one or more performance obligations that are either (1) capable of being distinct (i.e., the customer can benefit from the product or service on its own or together with readily available resources, including those purchased separately from us) and distinct within the context of the contract (i.e., separately identified from other promises in the contract) or (2) a series of distinct products or services that are substantially the same and have the same pattern of transfer to the customer. Our term license subscriptions are delivered at a point in time while our SaaS subscriptions, maintenance and support, and professional services are delivered over time. Subscriptions Revenue Subscriptions revenue is primarily related to (1) SaaS subscriptions bundled with maintenance and support and hosting services and (2) term license subscriptions bundled with maintenance and support. We generally charge subscription fees on a per-user basis or through non-user based single application licenses. We bill customers and collect payment for subscriptions to our platform in advance on an annual, quarterly, or monthly basis. In certain instances, our customers have paid their entire contract up front. SaaS Subscriptions We generate cloud-based subscriptions revenue primarily from the sales of subscriptions to access our cloud offering, together with related support services to our customers. We perform all required maintenance and support for our cloud offering. Revenue is recognized on a ratable basis over the contract term beginning on the date the service is made available to the customer. Our cloud-based subscription contracts generally have a term of one Term License Subscriptions Our term license subscriptions revenue is derived from customers with on-premises installations of our platform pursuant to contracts that were historically one Maintenance and Support Maintenance and support subscriptions include both technical support and when-and-if-available software upgrades, which are treated as a single performance obligation as they are considered a series of distinct services that are substantially the same and have the same duration and measure of progress. Revenue from maintenance and support is recognized ratably over the contract period, which is the period over which the customer has continuous access to maintenance and support. Professional Services Revenue Our professional services revenue is comprised of fees for consulting services, including application development and deployment assistance as well as training services related to our platform. Our professional services are considered distinct performance obligations when sold standalone or with other products. Consulting Services We sell consulting services to assist customers in planning and executing the deployment of our software. Customers are not required to use consulting services to fully benefit from the software. Consulting services are regularly sold on a standalone basis and either (1) under a fixed-fee arrangement or (2) on a time and materials basis. Consulting contracts are each considered separate performance obligations because they do not integrate with each other or with other products and services to deliver a combined output to the customer, do not modify or customize (or are not modified or customized by) each other or other products and services, and do not affect the customer's ability to use the other consulting offerings or other products and services. Revenue under consulting contracts is recognized over time as services are delivered. For time and materials-based consulting contracts, we have elected the practical expedient of recognizing revenue upon invoicing since the invoiced amount corresponds directly to the value of our service to date. Training Services We sell various training services to our customers. Training services are sold in the form of prepaid training credits that are redeemed based on a fixed rate per course. Training revenue is recognized when the associated training services are delivered. Significant Judgments and Estimates Determining the Transaction Price The transaction price includes both fixed and variable consideration. Variable consideration is included in the transaction price to the extent it is probable a significant reversal will not occur. The amount of variable consideration excluded from the transaction price for the three and six months ended June 30, 2021 and 2020 was insignificant. Our estimates of variable consideration are also subject to subsequent true-up adjustments and may result in changes to transaction prices; however, such true-up adjustments are not expected to be material. Allocating the Transaction Price Based on Standalone Selling Prices ("SSP") We allocate the transaction price to each performance obligation in a contract based on its relative SSP. The SSP is the observable price at which we sell the product or service separately. In the absence of observable pricing, we estimate SSP using the residual approach. We establish SSP as follows: 1. SaaS subscriptions - Given the highly variable selling price of our SaaS subscriptions, we establish the SSP of our SaaS subscriptions using a residual approach after first determining the SSP of consulting and training services. We have concluded the residual approach to estimating SSP of our SaaS subscriptions is an appropriate allocation of the transaction price. 2. Term license subscriptions - Given the highly variable selling price of our term license subscriptions, we have established SSP of term license subscriptions using a residual approach after first determining the SSP of maintenance and support. Maintenance and support is sold on a standalone basis in conjunction with renewals of our legacy perpetual software licenses and within a narrow range of the net license fee. Because an economic relationship exists between the license and maintenance and support, we have concluded the residual approach to estimating SSP of term license subscriptions is an appropriate allocation of the transaction price. 3. Maintenance and support - We establish the SSP of maintenance and support as a percentage of the stated net subscription fee based on observable pricing of maintenance and support renewals from our legacy perpetual software licenses. 4. Consulting and training services - The SSP of consulting and training services is established based on the observable pricing of standalone sales within each geographic region where the services are sold. Contract Balances
Concentration of Credit and Customer Risk	Concentration of Credit and Customer Risk Our financial instruments exposed to concentration of credit and customer risk consist primarily of cash and cash equivalents, trade accounts receivable, and our short- and long-term investments. Deposits held with banks may exceed the amount of insurance provided on such deposits. We believe the financial institutions holding our cash deposits are financially sound and, accordingly, minimal credit risk exists with respect to these balances.
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all highly liquid investments with an original or remaining maturity of three months or less at the date of purchase, as well as overnight repurchase agreements, to be cash equivalents.
Accounts Receivable and Allowance for Doubtful Accounts	Accounts Receivable and Allowance for Doubtful AccountsAccounts receivable are stated at realizable value, net of an allowance for doubtful accounts. The allowance for doubtful accounts is based on our assessment of the collectability of accounts and incorporates an estimation of expected lifetime credit losses on our receivables. We regularly review the composition of the accounts receivable aging, historical bad debts, changes in payment patterns, customer creditworthiness, and current economic trends. If the financial condition of our customers were to deteriorate, resulting in their inability to make required payments, additional provisions for doubtful accounts would be required and would increase bad debt expense.
Assets Recognized from the Costs to Obtain a Contract with a Customer	Assets Recognized from the Costs to Obtain a Contract with a Customer We capitalize the incremental costs of obtaining a contract with a customer, including sales commissions paid to our direct sales force, that are incremental costs to obtaining customer contracts. These costs are recorded as deferred commissions in the condensed consolidated balance sheets. Costs to obtain a contract for a new customer or upsell are amortized over an estimated economic life of five years as sales commissions on initial sales are not commensurate with sales commissions on contract renewals. We determine the estimated economic life based on both qualitative and quantitative factors such as expected renewals, product life cycles, contractual terms, and customer attrition. We periodically review the carrying amount of deferred contract acquisition costs to determine whether events or changes in circumstances have occurred that could impact the estimated economic life. Commissions paid relating to contract renewals are deferred and amortized over the related renewal period. We also capitalize the incremental fringe benefits associated with commission expenses paid to our direct sales force. Costs to obtain a contract for professional services arrangements are expensed as incurred as the contractual period of our professional services arrangements are one year or less.
Property and Equipment	Property and Equipment Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation is computed using the straight-line method over the estimated useful lives of the assets. Significant additions or improvements extending the useful life of an asset are capitalized, while repairs and maintenance costs which do not significantly improve the related assets or extend their useful lives are charged to expense as incurred.
Impairment of Long-Lived Assets	Impairment of Long-Lived AssetsLong-lived assets and certain intangible assets are reviewed for impairment whenever events or circumstances indicate the carrying amount of an asset may not be recoverable through undiscounted cash flows from the use of the assets. If such assets are considered to be impaired, the assets are written down to their estimated fair value.
Stock-Based Compensation	Stock-Based Compensation We account for stock-based compensation expense related to stock-based awards based on the estimated fair value of the award on the grant date. We calculate the fair value of stock options containing only a service condition using the Black-Scholes option pricing model. The fair value of restricted stock units ("RSUs") is based on the closing market price of our
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adopted In December 2019, the FASB issued Accounting Standards Update ("ASU") 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which amends and aims to simplify accounting disclosure requirements regarding a number of topics including, but not limited to, intraperiod tax allocations, accounting for deferred taxes when there are changes in the consolidation of certain investments, tax basis step ups in an acquisition, and the application of effective rate changes during interim periods. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. The adoption of the new guidance did not have a material impact on our consolidated financial statements. Not Yet Adopted In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform - Facilitation of the Effects of Reference Rate Reform on Financial Reporting (Topic 848), which provides temporary optional expedients and exceptions to the GAAP guidance on contract modifications to ease the financial reporting burdens of the expected market transition from LIBOR and other interbank offered rates to alternative reference rates such as the Secured Overnight Financing Rate ("SOFR"). This guidance is effective upon issuance and generally can be applied through the end of calendar year 2022. We are currently evaluating the impact and applicability of this new standard.
Leases	At the inception of an arrangement, we determine whether the arrangement is or contains a lease based on the unique facts and circumstances present and the classification of the lease. Operating leases with a term greater than one year are recognized on the balance sheet as right-of-use ("ROU") assets, lease liabilities, and, if applicable, long-term lease liabilities. ROU assets represent our right to use an underlying asset for the lease term, and lease liabilities represent our obligation to make lease payments arising from the lease. We have elected not to recognize on our condensed consolidated balance sheets leases with a term of one year or less. For contracts with lease and non-lease components, we have elected not to allocate the contract consideration but rather to account for the lease and non-lease components as a single lease component. Lease liabilities and their corresponding ROU assets are recorded based on the present value of lease payments over the expected lease term. The implicit rates within most of our leases are generally not determinable; therefore, we use the incremental borrowing rate at the lease commencement date to determine the present value of lease payments. The determination of our incremental borrowing rate requires judgment and is estimated for each lease based on the rate we would have to pay for a collateralized loan with the same term and payments as the lease. We consider various factors, including our level of collateralization, estimated credit rating, and the currency in which the lease is denominated. Operating lease ROU assets also include any lease prepayments, offset by lease incentives. Certain of our leases include options to extend or terminate the lease. An option to extend the lease is considered in connection with determining the ROU asset and lease liability when it is reasonably certain we will exercise that option while an option to terminate is considered unless it is reasonably certain we will not exercise the option. For certain equipment leases, we apply a portfolio approach to effectively account for the operating lease ROU assets and liabilities. Expense for operating leases is recognized on a straight-line basis over the lease term as an operating expense while the expense for finance leases is recognized as depreciation expense and interest expense. We have lease agreements which require payments for lease and non-lease components (i.e., common area maintenance) that are accounted for as a single lease component. Variable lease payment amounts that cannot be determined at the commencement of the lease, such as maintenance costs based on future obligations, are not included in ROU assets or lease liabilities but rather are expensed as incurred and recorded as variable lease expense.
Fair Value Measurements	Fair Value Measurements We use a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. The hierarchy requires us to use observable inputs when available and to minimize the use of unobservable inputs when determining fair value. The three tiers are defined as follows: • Level 1. Observable inputs based on unadjusted quoted prices in active markets for identical assets or liabilities; • Level 2. Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and • Level 3. Unobservable inputs for which there is little or no market data, which require us to develop our own assumptions. The asset or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques maximize the use of relevant observable inputs and minimize the use of unobservable inputs. There were no instruments measured at fair value on a recurring basis using significant unobservable inputs as of June 30, 2021 and December 31, 2020. The valuation techniques that may be used to measure fair value are as follows: • Market approach - Uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; • Income approach - Uses valuation techniques to convert future amounts to a single present amount based on current market expectations about those future amounts; • Cost approach - Based on the amount that currently would be required to replace the service capacity of an asset (i.e., replacement cost).
Investments	InvestmentsOur investment portfolio consists largely of debt investments classified as available-for-sale. Changes in the fair value of available-for-sale securities, excluding other-than-temporary impairments, are recorded in other comprehensive income (loss).

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Property and Equipment, Useful Life	The following table outlines the useful lives of our major asset categories: Asset Category Useful Life (in years) Computer software 3 Computer hardware 3 Equipment 5 Office furniture and fixtures 10 Leasehold improvements (a) (a) Leasehold improvements have an estimated useful life of the shorter of the useful life of the assets or the lease term.

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Summary of Revenue by Services	The following table summarizes revenue from contracts with customers for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 SaaS subscriptions $ 42,486 $ 29,580 $ 81,539 $ 57,970 Term license subscriptions 9,323 7,379 29,176 25,172 Maintenance and support 5,137 4,459 9,997 8,712 Professional services 26,053 25,357 51,142 53,785 Total revenue $ 82,999 $ 66,775 $ 171,854 $ 145,639

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Components of Lease Expense	The following table sets forth the components of lease expense for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Operating lease cost $ 1,695 $ 1,408 $ 3,325 $ 3,276 Finance lease costs: Amortization of right-of-use assets — 372 — 745 Interest on lease liabilities — 46 — 97 Short-term lease cost 13 195 54 380 Variable lease cost 772 34 797 217 Total $ 2,480 $ 2,055 $ 4,176 $ 4,715
Supplemental Balance Sheet Information	Supplemental balance sheet information related to operating leases as of June 30, 2021 and December 31, 2020 was as follows (in thousands, except for lease term and discount rate): As of June 30, 2021 December 31, 2020 Operating right-of-use assets $ 30,528 $ 30,659 Operating lease liabilities, current $ 7,854 $ 6,923 Operating lease liabilities, net of current portion 50,185 51,194 Total operating lease liabilities $ 58,039 $ 58,117 Weighted average remaining lease term (in years) 10.0 10.6 Weighted average discount rate 9.5 % 9.6 %
Supplemental Cash Flow Information	Supplemental cash flow information related to leases for the six months ended June 30, 2021 and 2020 was as follows (in thousands): Six Months Ended June 30, 2021 2020 Cash paid for amounts included in the measurement of lease liabilities: Operating cash outflows for operating leases $ 3,503 $ 1,044 Operating cash outflows for finance leases — 97 Financing cash outflows for finance leases — 716
Maturities of Operating Lease Liabilities	A summary of our future minimum lease commitments under non-cancellable leases as of June 30, 2021 is as follows (in thousands): Operating Leases 2021 (excluding the six months ended June 30, 2021) $ 4,070 2022 8,252 2023 8,249 2024 8,648 2025 9,343 2026 9,369 Thereafter 48,775 Total lease payments 96,706 Less: imputed interest (38,667) Total $ 58,039

Property and Equipment, net (Ta

Property and Equipment, net (Tables)	6 Months Ended
	Jun. 30, 2021
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment, net consisted of the following as of June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 December 31, 2020 Leasehold improvements $ 36,394 $ 36,263 Office furniture and fixtures 2,522 2,521 Computer hardware 5,399 4,535 Computer software 1,354 1,352 Equipment 58 49 Property and equipment, gross 45,727 44,720 Less: accumulated depreciation (11,663) (9,316) Property and equipment, net $ 34,064 $ 35,404

Accrued Expenses (Tables)

Accrued Expenses (Tables)	6 Months Ended
	Jun. 30, 2021
Payables and Accruals [Abstract]
Schedule of Accrued Expenses	Accrued expenses consisted of the following as of June 30, 2021 and December 31, 2020 (in thousands): June 30, 2021 December 31, 2020 Accrued hosting costs $ 2,093 $ 1,229 Accrued legal costs 1,112 760 Accrued contract labor costs 884 908 Accrued taxes payable 579 527 Accrued audit and tax expenses 345 370 Accrued marketing and tradeshow expenses 420 596 Accrued third party license fees 247 570 Accrued reimbursable employee expenses 291 231 Other accrued expenses 1,305 630 Total $ 7,276 $ 5,821

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Summary of the Stock Option Activity	The following table summarizes stock option activity for the six months ended June 30, 2021: Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (in thousands) Outstanding at January 1, 2021 3,399,240 $ 14.06 4.9 $ 503,174 Granted — — — — Exercised (299,920) 6.94 — 33,230 Expired — — — — Forfeited (10,060) 11.62 — — Outstanding at June 30, 2021 3,089,260 $ 14.76 4.4 $ 379,935 Exercisable at June 30, 2021 2,850,280 $ 15.04 4.3 $ 349,747
Schedule of Restricted Stock Unit Activity	The following table summarizes RSU activity for the six months ended June 30, 2021: Number of Shares Weighted Average Grant Date Fair Value Non-vested and outstanding at January 1, 2021 1,165,003 $ 46.04 Granted 110,008 139.17 Vested (99,350) 46.44 Forfeited (48,965) 63.20 Non-vested and outstanding at June 30, 2021 1,126,696 54.35
Schedule of Components of Stock-based Compensation Expense	The following table summarizes the components of our stock-based compensation expense by instrument type for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 RSUs $ 4,403 $ 2,475 $ 8,408 $ 4,774 Stock options 40 1,047 3,773 2,131 Common stock awards to Board of Directors 155 92 311 185 Total stock-based compensation expense $ 4,598 $ 3,614 $ 12,492 $ 7,090
Schedule of Stock-based Compensation Expense Included in Condensed Consolidated Statements of Operations	Stock-based compensation expense for RSUs, stock options, and issuances of common stock to the Board of Directors is included in the following line items in the accompanying condensed consolidated statements of operations for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Cost of revenue Subscriptions $ 295 $ 229 $ 592 $ 442 Professional services 865 317 1,506 529 Operating expenses Sales and marketing 1,197 657 2,305 1,410 Research and development 1,069 619 2,084 1,172 General and administrative 1,172 1,792 6,005 3,537 Total stock-based compensation expense $ 4,598 $ 3,614 $ 12,492 $ 7,090

Basic and Diluted Loss per Co_2

Basic and Diluted Loss per Common Share (Tables)	6 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
Summary of Securities Excluded From Calculation of Weighted Average Common Shares	The following outstanding securities, prior to the use of the treasury stock method or the if-converted method, have been excluded from the computation of diluted weighted-average shares outstanding for the respective periods below because they would have been antidilutive: Three and Six Months Ended June 30, 2021 2020 Stock options 3,089,260 4,046,544 Non-vested restricted stock units 1,126,696 1,116,127

Segment and Geographic Inform_2

Segment and Geographic Information (Tables)	6 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Summary of Revenue By Geography	The following table summarizes revenue by geography for the three and six months ended June 30, 2021 and 2020 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Domestic $ 53,704 $ 42,191 $ 113,986 $ 94,646 International 29,295 24,584 57,868 50,993 Total $ 82,999 $ 66,775 $ 171,854 $ 145,639

Investments and Fair Value Me_2

Investments and Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Components of Investments	The components of our investments as of June 30, 2021 are as follows (in thousands): As of June 30, 2021 Fair Value Measurement Balance Sheet Classification Fair Value Level Cost Basis Unrealized Gains (Losses) Market Value Cash and Cash Equivalents Short-Term Investments Long-Term Investments Money market fund Level 1 $ 72,275 $ — $ 72,275 $ 72,275 $ — $ — U.S. Treasury bonds Level 1 24,446 4 24,450 — 24,450 — Commercial paper Level 2 38,432 — 38,432 — 38,432 — Corporate bonds Level 2 29,113 (1) 29,112 — 27,562 1,550 Asset-backed securities Level 2 26,373 5 26,378 — 20,880 5,498 Total investments $ 190,639 $ 8 $ 190,647 $ 72,275 $ 111,324 $ 7,048 At December 31, 2020, our investments consisted of the following (in thousands): As of December 31, 2020 Fair Value Measurement Balance Sheet Classification Fair Value Level Cost Basis Unrealized Gains (Losses) Market Value Cash and Cash Equivalents Short-Term Investments Long-Term Investments Money market fund Level 1 $ 27,150 $ — $ 27,150 $ 27,150 $ — $ — U.S. Treasury bonds Level 1 24,445 (3) 24,442 — 16,273 8,169 Commercial paper Level 2 76,905 — 76,905 16,493 60,412 — Corporate bonds Level 2 34,738 (11) 34,727 — 27,542 7,185 Asset-backed securities Level 2 26,373 (8) 26,365 — 5,599 20,766 Total investments $ 189,611 $ (22) $ 189,589 $ 43,643 $ 109,826 $ 36,120
Amortized Cost Basis and Fair Value of Debt Securities by Contractual Maturity	The amortized cost basis and fair value of debt securities as of June 30, 2021, by contractual maturity, are as follows (in thousands): As of June 30, 2021 Cost Basis Fair Value Due in one year or less $ 183,596 $ 183,599 Due after one year through five years 7,043 7,048 Total investments $ 190,639 $ 190,647

Significant Accounting Polici_4

Significant Accounting Policies - Additional Information (Detail) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)$ / sharesshares	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)$ / shares	Jun. 30, 2021USD ($)agency	Jun. 30, 2020USD ($)agency$ / shares
Summary Of Significant Accounting Policies [Line Items]
Number of government agencies | agency				3	3
Increase (decrease) in allowance for doubtful accounts | $				$ 0
Capitalized contract cost, amortization period (in years)		5 years		5 years
Commission expense | $		$ 7.5	$ 5.8	$ 14.3	$ 11.1
Customer Concentration Risk | Sales Revenue, Net | Foreign Customers
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage		35.30%	36.80%	33.70%	35.00%
Customer Concentration Risk | Sales Revenue, Net | Government Agencies
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage		19.80%	19.00%	20.40%	16.80%
Customer Concentration Risk | Sales Revenue, Net | Federal Government Agencies
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage		6.50%	7.60%	6.50%	6.70%
Class A Common Stock | Underwritten Public Offering
Summary Of Significant Accounting Policies [Line Items]
Number of shares issued in public offering (in shares) | shares	2,500,000
Number of shares issued by the company in public offering (in shares) | shares	1,931,206
Number of shares issued by shareholders in public offering (in shares) | shares	568,794
Sale of stock, offering price (in usd per share) | $ / shares	$ 56.50		$ 56.50		$ 56.50
Net proceeds from public offering | $	$ 107.9

Significant Accounting Polici_5

Significant Accounting Policies - Property and Equipment, Useful Life (Details)	6 Months Ended
	Jun. 30, 2021
Computer software
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life (in years)	3 years
Computer hardware
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life (in years)	3 years
Equipment
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life (in years)	5 years
Office furniture and fixtures
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life (in years)	10 years

Revenue - Revenue by Services (

Revenue - Revenue by Services (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 82,999	$ 66,775	$ 171,854	$ 145,639
SaaS subscriptions
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	42,486	29,580	81,539	57,970
Term license subscriptions
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	9,323	7,379	29,176	25,172
Maintenance and support
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	5,137	4,459	9,997	8,712
Professional services
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 26,053	$ 25,357	$ 51,142	$ 53,785

Revenue - Additional Informatio

Revenue - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract assets balances	$ 16.2	$ 20.1
Revenue recognized	81.1
Unsatisfied performance obligations	223.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unsatisfied performance obligations	$ 201.3
Revenue, remaining performance obligation, period (in months)	24 months
Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
SaaS subscriptions contracts term (in years)	1 year
Term license subscription contracts term (in years)	1 year
Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
SaaS subscriptions contracts term (in years)	3 years
Term license subscription contracts term (in years)	3 years

Leases - Additional Information

Leases - Additional Information (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Oct. 31, 2020USD ($)	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2020USD ($)	Jul. 01, 2020USD ($)	Jan. 31, 2020ft²	Feb. 28, 2019ft²	Apr. 30, 2018ft²
Debt Instrument [Line Items]
Renewal term (in years)		10 years		10 years
Number of square feet | ft²								34,158	28,805	176,222
Lease term (in months)										150 months
Operating right-of-use assets		$ 30,528		$ 30,528		$ 30,659	$ 7,900
Operating lease liabilities		58,039		58,039		$ 58,117	$ 7,900
Financing cash outflows for finance leases	$ 2,700			0	$ 716
Amortization of operating right-of-use assets		400	$ 200	700	900
Interest expense on operating right-of-use liabilities		$ 500	$ 1,000	$ 900	$ 1,400
Minimum
Debt Instrument [Line Items]
Operating leases, remaining lease term (in years)		1 year		1 year
Maximum
Debt Instrument [Line Items]
Operating leases, remaining lease term (in years)		11 years		11 years

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating lease cost	$ 1,695	$ 1,408	$ 3,325	$ 3,276
Amortization of right-of-use assets	0	372	0	745
Interest on lease liabilities	0	46	0	97
Short-term lease cost	13	195	54	380
Variable lease cost	772	34	797	217
Total	$ 2,480	$ 2,055	$ 4,176	$ 4,715

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jul. 01, 2020
Leases [Abstract]
Operating right-of-use assets	$ 30,528	$ 30,659	$ 7,900
Operating lease liabilities, current	7,854	6,923
Operating lease liabilities, net of current portion	50,185	51,194
Total operating lease liabilities	$ 58,039	$ 58,117	$ 7,900
Operating leases, weighted average remaining lease term (in years)	10 years	10 years 7 months 6 days
Operating leases, weighted average remaining discount rate	9.50%	9.60%

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
	Oct. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating cash outflows for operating leases		$ 3,503	$ 1,044
Operating cash outflows for finance leases		0	97
Financing cash outflows for finance leases	$ 2,700	$ 0	$ 716

Leases - Maturities of Lease Li

Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jul. 01, 2020
Operating Leases
2021 (excluding the three months ended March 31, 2021)	$ 4,070
2022	8,252
2023	8,249
2024	8,648
2025	9,343
2026	9,369
Thereafter	48,775
Total lease payments	96,706
Less: imputed interest	(38,667)
Total	$ 58,039	$ 58,117	$ 7,900

Property and Equipment, net - S

Property and Equipment, net - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 45,727	$ 44,720
Less: accumulated depreciation	(11,663)	(9,316)
Property and equipment, net	34,064	35,404
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	36,394	36,263
Office furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,522	2,521
Computer hardware
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,399	4,535
Computer software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,354	1,352
Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 58	$ 49

Property and Equipment, net - N

Property and Equipment, net - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 1,200,000	$ 1,400,000	$ 2,400,000	$ 2,800,000
Disposal of property plant and equipment	$ 0		$ 0
Leasehold improvements
Property, Plant and Equipment [Line Items]
Disposal of property plant and equipment				1,300,000
Computer hardware
Property, Plant and Equipment [Line Items]
Disposal of property plant and equipment				100,000
Office furniture and fixtures and equipment
Property, Plant and Equipment [Line Items]
Disposal of property plant and equipment				$ 100,000

Accrued Expenses (Detail)

Accrued Expenses (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Accrued hosting costs	$ 2,093	$ 1,229
Accrued legal costs	1,112	760
Accrued contract labor costs	884	908
Accrued taxes payable	579	527
Accrued audit and tax expenses	345	370
Accrued marketing and tradeshow expenses	420	596
Accrued third party license fees	247	570
Accrued reimbursable employee expenses	291	231
Other accrued expenses	1,305	630
Total	$ 7,276	$ 5,821

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($)	1 Months Ended
	Nov. 30, 2017	Jun. 30, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Outstanding letters of credit		$ 11,200,000	$ 11,200,000
Revolving Credit Facility
Line of Credit Facility [Line Items]
Credit facility	$ 20,000,000
Term Loan
Line of Credit Facility [Line Items]
Line of credit, outstanding borrowings		$ 0
Minimum
Line of Credit Facility [Line Items]
Unused credit facility fee	0.15%
Quick ratio	135.00%
Minimum | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Interest rate margin	2.00%
Minimum | Prime Rate
Line of Credit Facility [Line Items]
Interest rate margin	1.00%
Maximum
Line of Credit Facility [Line Items]
Unused credit facility fee	0.25%
Maximum | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Interest rate margin	2.50%
Maximum | Prime Rate
Line of Credit Facility [Line Items]
Interest rate margin	1.50%

Income Taxes (Detail)

Income Taxes (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Taxes [Line Items]
Effective tax rate	(1.10%)	(2.40%)	(1.00%)	(0.30%)
Net unrecognized tax benefits which would impact effective tax rate if recognized	$ 2.3		$ 2.3
Minimum | Subsidiaries
Income Taxes [Line Items]
Effective tax rate			0.00%
Maximum | Subsidiaries
Income Taxes [Line Items]
Effective tax rate			32.00%

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	6 Months Ended		12 Months Ended
	May 31, 2019	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	May 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option granted (in shares)		0	0
Exercise price of stock options granted (in usd per share)		$ 0
Service period (in years)		4 years 4 months 24 days		4 years 10 months 24 days
Vested in period, value		$ 10.5	$ 1
Compensation cost related to nonvested stock options not yet recognized		$ 0.2
Unrecognized compensation cost related to nonvested stock option recognized over weighted average period (in years)		9 months 18 days
Non-vested restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost related to unvested restricted stock units		$ 51.8
Weighted average remaining vesting period (in years)		2 years 2 months 12 days
2017 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available to be issued (in shares)		4,223,260
Vesting, consecutive days (in days)	90 days
Vesting, change in control period (in years)	5 years
2017 Equity Incentive Plan | Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available to be issued (in shares)		7,175,469			6,421,442
2007 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available to be issued (in shares)					421,442
Number of shares available for grants (in shares)					0
Chief Executive Officer | 2017 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option granted (in shares)	700,000
Exercise price of stock options granted (in usd per share)	$ 33.98
Share price (in usd per share)	$ 84.63
Value of award at grant date	$ 9.5
Service period (in years)	2 years 7 months 6 days
Chief Executive Officer | 2019 CEO Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognition of stock-based compensation expense accelerated		$ 3.3

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of the Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Number of Shares
Outstanding at beginning of period (in shares)	3,399,240
Granted (in shares)	0	0
Exercised (in shares)	(299,920)
Expired (in shares)	0
Forfeited (in shares)	(10,060)
Outstanding at ending of period (in shares)	3,089,260		3,399,240
Exercisable at end of period (in shares)	2,850,280
Weighted Average Exercise Price
Outstanding at beginning of period (in usd per share)	$ 14.06
Granted (in usd per share)	0
Exercised (in usd per share)	6.94
Expired (in usd per share)	0
Forfeited (in usd per share)	11.62
Outstanding at ending of period (in usd per share)	14.76		$ 14.06
Exercisable at end of period (in usd per share)	$ 15.04
Weighted Average Remaining Contractual Term (Years)
Outstanding (in years)	4 years 4 months 24 days		4 years 10 months 24 days
Exercisable at end of period (in years)	4 years 3 months 18 days
Aggregate Intrinsic Value (in thousands)
Outstanding	$ 379,935		$ 503,174
Exercised	33,230
Exercisable at end of period	$ 349,747

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Restricted Stock Unit Activity (Detail) - Non-vested restricted stock units	6 Months Ended
	Jun. 30, 2021$ / sharesshares
Number of Shares
Non-vested outstanding at beginning of period (in shares) | shares	1,165,003
Granted (in shares) | shares	110,008
Vested (in shares) | shares	(99,350)
Forfeited (in shares) | shares	(48,965)
Non-vested outstanding at end of period (in shares) | shares	1,126,696
Weighted Average Grant Date Fair Value
Non-vested outstanding at beginning of period (in usd per share) | $ / shares	$ 46.04
Granted (in usd per share) | $ / shares	139.17
Vested (in usd per share) | $ / shares	46.44
Forfeited (in usd per share) | $ / shares	63.20
Non-vested outstanding at end of period (in usd per share) | $ / shares	$ 54.35

Stock-Based Compensation - Sc_2

Stock-Based Compensation - Schedule of Stock-based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 4,598	$ 3,614	$ 12,492	$ 7,090
RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	4,403	2,475	8,408	4,774
Stock options
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	40	1,047	3,773	2,131
Common stock awards to Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 155	$ 92	$ 311	$ 185

Stock-Based Compensation - Sc_3

Stock-Based Compensation - Schedule of Stock-based Compensation Expense Included in Condensed Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 4,598	$ 3,614	$ 12,492	$ 7,090
Subscriptions
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	295	229	592	442
Professional services
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	865	317	1,506	529
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	1,197	657	2,305	1,410
Research and development
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	1,069	619	2,084	1,172
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation expense	$ 1,172	$ 1,792	$ 6,005	$ 3,537

Stockholders' Equity (Detail)

Stockholders' Equity (Detail)	6 Months Ended
	Jun. 30, 2021vote$ / sharesshares	Dec. 31, 2020$ / sharesshares
Class A Common Stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, par value (in usd per share) | $ / shares	$ 0.0001	$ 0.0001
Common stock, shares issued (in shares)	39,581,079	38,971,324
Common stock, shares outstanding (in shares)	39,581,079	38,971,324
Number of votes entitled to stockholders per share | vote	1
Conversion of stock (in shares)	1
Maximum percentage of aggregate voting power of capital stock which triggers conversion of stock	10.00%
Class B Common Stock
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, par value (in usd per share) | $ / shares	$ 0.0001	$ 0.0001
Common stock, shares issued (in shares)	31,499,516	31,707,866
Common stock, shares outstanding (in shares)	31,499,516	31,707,866
Number of votes entitled to stockholders per share | vote	10

Basic and Diluted Loss per Co_3

Basic and Diluted Loss per Common Share (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities outstanding (in shares)	3,089,260	4,046,544	3,089,260	4,046,544
Non-vested restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities outstanding (in shares)	1,126,696	1,116,127	1,126,696	1,116,127

Commitments and Contingencies -

Commitments and Contingencies -Narrative (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Outstanding letters of credit	$ 11.2	$ 11.2

Segment and Geographic Inform_3

Segment and Geographic Information - Summary of Revenues By Geography (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 82,999	$ 66,775	$ 171,854	$ 145,639
Domestic
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	53,704	42,191	113,986	94,646
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 29,295	$ 24,584	$ 57,868	$ 50,993

Segment and Geographic Inform_4

Segment and Geographic Information - Additional Information (Detail)	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Sales Revenue, Net | Geographic Concentration Risk | United Kingdom
Segment Reporting Information [Line Items]
Concentration risk, percentage	12.40%	12.40%

Investments and Fair Value Me_3

Investments and Fair Value Measurements - Components of Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Cost Basis	$ 190,639	$ 189,611
Unrealized Gains (Losses)	8	(22)
Market Value	190,647	189,589
Cash and Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Market Value	72,275	43,643
Short-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	111,324	109,826
Long-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	7,048	36,120
Level 1 | Money market fund
Debt Securities, Available-for-sale [Line Items]
Cost Basis	72,275	27,150
Unrealized Gains (Losses)	0	0
Market Value	72,275	27,150
Level 1 | Money market fund | Cash and Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Market Value	72,275	27,150
Level 1 | Money market fund | Short-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	0	0
Level 1 | Money market fund | Long-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	0	0
Level 1 | U.S. Treasury bonds
Debt Securities, Available-for-sale [Line Items]
Cost Basis	24,446	24,445
Unrealized Gains (Losses)	4	(3)
Market Value	24,450	24,442
Level 1 | U.S. Treasury bonds | Cash and Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Market Value	0	0
Level 1 | U.S. Treasury bonds | Short-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	24,450	16,273
Level 1 | U.S. Treasury bonds | Long-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	0	8,169
Level 2 | Commercial paper
Debt Securities, Available-for-sale [Line Items]
Cost Basis	38,432	76,905
Unrealized Gains (Losses)	0	0
Market Value	38,432	76,905
Level 2 | Commercial paper | Cash and Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Market Value	0	16,493
Level 2 | Commercial paper | Short-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	38,432	60,412
Level 2 | Commercial paper | Long-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	0	0
Level 2 | Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Cost Basis	29,113	34,738
Unrealized Gains (Losses)	(1)	(11)
Market Value	29,112	34,727
Level 2 | Corporate bonds | Cash and Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Market Value	0	0
Level 2 | Corporate bonds | Short-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	27,562	27,542
Level 2 | Corporate bonds | Long-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	1,550	7,185
Level 2 | Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Cost Basis	26,373	26,373
Unrealized Gains (Losses)	5	(8)
Market Value	26,378	26,365
Level 2 | Asset-backed securities | Cash and Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Market Value	0	0
Level 2 | Asset-backed securities | Short-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	20,880	5,599
Level 2 | Asset-backed securities | Long-Term Investments
Debt Securities, Available-for-sale [Line Items]
Market Value	$ 5,498	$ 20,766

Investments and Fair Value Me_4

Investments and Fair Value Measurements - Amortized Cost Basis and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Cost Basis
Due in one year or less	$ 183,596
Due after one year through five years	7,043
Cost Basis	190,639	$ 189,611
Fair Value
Due in one year or less	183,599
Due after one year through five years	7,048
Fair Value	$ 190,647	$ 189,589

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event - USD ($) $ in Millions	1 Months Ended
	Aug. 31, 2021	Jul. 31, 2021
Subsequent Event [Line Items]
Purchase obligation		$ 131
Purchase obligation, year one		22
Purchase obligation, year two		25
Purchase obligation, year three		28
Purchase obligation, year four		28
Purchase obligation, year five		$ 28
Lana Labs GMBH
Subsequent Event [Line Items]
Acquisition price	$ 31