A10 Networks (ATEN) 10-Q 4 May 23 2023 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2023	Apr. 26, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	001-36343
Entity Registrant Name	A10 NETWORKS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-1446869
Entity Address, Address Line One	2300 Orchard Parkway
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95131
City Area Code	408
Local Phone Number	325-8668
Title of 12(b) Security	Common Stock, $0.00001 par value
Trading Symbol	ATEN
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		73,967,823
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001580808
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 68,519	$ 67,971
Marketable securities	76,022	83,018
Accounts receivable, net of allowances of $78 and $32, respectively	67,007	72,928
Inventory	20,391	19,693
Prepaid expenses and other current assets	13,054	13,381
Total current assets	244,993	256,991
Property and equipment, net	22,305	19,743
Goodwill	1,307	1,307
Deferred tax assets, net	62,116	63,183
Other non-current assets	26,564	27,881
Total assets	357,285	369,105
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	5,906	6,725
Accrued liabilities	21,410	37,183
Deferred revenue	75,729	74,340
Total current liabilities	103,045	118,248
Deferred revenue, non-current	52,769	52,652
Other non-current liabilities	15,970	17,193
Total liabilities	171,784	188,093
Commitments and contingencies (Note 2 and Note 5)
Stockholders' equity:
Common stock, $0.00001 par value: 500,000 shares authorized; 87,581 and 87,123 shares issued and 74,197 and 73,738 shares outstanding, respectively	1	1
Treasury stock, at cost: 13,384 and 13,384 shares, respectively	(134,934)	(134,934)
Additional paid-in-capital	471,341	466,927
Dividends paid	(24,248)	(19,802)
Accumulated other comprehensive income	(163)	(726)
Accumulated deficit	(126,496)	(130,454)
Total stockholders' equity	185,501	181,012
Total liabilities and stockholders' equity	$ 357,285	$ 369,105

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 78	$ 32
Common Stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	87,581,000	87,123,000
Common stock, shares outstanding (in shares)	74,197,000	73,738,000
Treasury Stock, Shares	13,384,000	13,384,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue:
Total revenue	$ 57,691	$ 62,672
Cost of revenue:
Total cost of revenue	10,216	12,839
Gross profit	47,475	49,833
Operating expenses:
Sales and marketing	22,334	22,782
Research and development	11,665	12,887
General and administrative	7,309	6,162
Total operating expenses	41,308	41,831
Income from operations	6,167	8,002
Non-operating income (expense), net:
Other income (expense), net	973	119
Other Nonoperating Income (Expense)	(2,218)	(632)
Non-operating income (expense), net	(1,245)	(513)
Income (Loss) Attributable to Parent, before Tax	4,922	7,489
Provision for income taxes	964	1,140
Net income	$ 3,958	$ 6,349
Net income per share:
Basic	$ 0.05	$ 0.08
Diluted	$ 0.05	$ 0.08
Weighted-average shares used in computing net income per share:
Basic	74,001	76,795
Diluted	75,541	79,285
Products
Revenue:
Total revenue	$ 31,182	$ 37,045
Cost of revenue:
Total cost of revenue	6,083	8,633
Services
Revenue:
Total revenue	26,509	25,627
Cost of revenue:
Total cost of revenue	$ 4,133	$ 4,206

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 3,958	$ 6,349
Other comprehensive income (expense), net of tax:
Unrealized gain (loss) on marketable securities	527	(776)
Unrealized gain on cash flow hedge	36	0
Comprehensive income	$ 4,521	$ 5,573

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Treasury Stock	Dividends Declared
Beginning balance at Dec. 31, 2021	$ 208,888	$ 1	$ 446,035	$ (229)	$ (177,362)	$ (55,677)	$ (3,880)
Beginning balance (in shares) at Dec. 31, 2021		77,423
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under employee equity incentive plans (in shares)		400
Common stock issued under employee equity incentive plans	0		165
Unrealized gain (loss) on marketable securities	(776)			(776)
Net income	6,349				6,349
Unrealized gain on cash flow hedge	0
Ending balance (in shares) at Mar. 31, 2022		75,701
Ending balance at Mar. 31, 2022	185,977	$ 1	449,742	(1,005)	(171,013)	$ (83,999)	(7,749)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends, Common Stock, Cash							(3,869)
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition			3,542
Stock Repurchased During Period, Value	$ (28,322)
Treasury Stock, Shares, Acquired	(2,100)					(2,122)
Beginning balance at Dec. 31, 2022	$ 181,012	$ 1	466,927	(726)	(130,454)	$ (134,934)	(19,802)
Beginning balance (in shares) at Dec. 31, 2022		73,738
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued under employee equity incentive plans (in shares)		459
Common stock issued under employee equity incentive plans	0		473
Unrealized gain (loss) on marketable securities	527			527
Net income	3,958				3,958
Unrealized gain on cash flow hedge	36
Ending balance (in shares) at Mar. 31, 2023		74,197
Ending balance at Mar. 31, 2023	185,501	$ 1	471,341	$ (163)	$ (126,496)	$ (134,934)	(24,248)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends, Common Stock, Cash							$ (4,446)
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition			$ 3,941
Stock Repurchased During Period, Value	$ 0
Treasury Stock, Shares, Acquired						0

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 3,958	$ 6,349
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	2,106	1,844
Stock-based compensation	3,742	3,452
Other non-cash items	(169)	287
Changes in operating assets and liabilities:
Accounts receivable	5,687	12,535
Inventory	(1,522)	1,433
Prepaid expenses and other assets	1,519	(1,568)
Accounts payable	(676)	(1,857)
Accrued liabilities	(16,997)	(6,287)
Deferred revenue	1,506	(280)
Net cash provided by (used in) operating activities	(846)	15,908
Cash flows from investing activities:
Proceeds from sales of marketable securities	0	4,550
Proceeds from maturities of marketable securities	29,263	17,173
Purchases of marketable securities	(21,221)	(13,635)
Purchases of property and equipment	(2,675)	(3,137)
Net cash provided by investing activities	5,367	4,951
Cash flows from financing activities:
Proceeds from issuance of common stock under employee equity incentive plans	473	165
Repurchase of common stock	0	(28,322)
Payments for dividends	(4,446)	(3,869)
Net cash used in financing activities	(3,973)	(32,026)
Net increase (decrease) in cash and cash equivalents	548	(11,167)
Cash and cash equivalents—beginning of period	67,971	78,925
Cash and cash equivalents—end of period	68,519	67,758
Non-cash investing and financing activities:
Transfers between inventory and property and equipment	824	196
Purchases of property and equipment included in accounts payable	$ 142	$ 1

Description of Business and Sum

Description of Business and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Significant Accounting Policies	Description of Business and Summary of Significant Accounting Policies Description of Business A10 Networks, Inc. (together with our subsidiaries, the “Company”, “we”, “our” or “us”) was incorporated in California in 2004 and reincorporated in Delaware in March 2014. We are headquartered in San Jose, California and have wholly-owned subsidiaries throughout the world including Asia and Europe. We are a leading provider of secure application solutions and services that enable a new generation of intelligently connected companies with the ability to continuously improve cyber protection and digital responsiveness across dynamic Information Technology (“IT”) and network infrastructures. Our product portfolio seeks to address many of the cyber protection challenges and solution requirements. The portfolio consists of six secure application solutions; Thunder Application Delivery Controller (“ADC”), Lightning Application Delivery Controller (“Lightning ADC”), Thunder Carrier Grade Networking (“CGN”), Thunder Threat Protection System (“TPS”), Thunder SSL Insight (“SSLi”) and Thunder Convergent Firewall (“CFW”), and two intelligent management and automation tools; Harmony Controller and aGalaxy TPS. Our solutions are available in a variety of form factors, such as optimized hardware appliances, bare metal software, containerized software, virtual appliances and cloud-native software. Our customers include leading service providers (cloud, telecommunications, multiple system operators, cable), government organizations, and enterprises. We derive revenue from two sources: (i) products revenue, which includes hardware, perpetual software license and subscription offerings, which include term-based license agreements and software-as-a-service; and (ii) services revenue, which includes post contract support (“PCS”), professional services, and training. Revenue for term-based license agreements is recognized at a point in time when the Company delivers the software license to the customer and the subscription term has commenced. For our software-as-a-service offerings, our customers do not take possession of the Company’s software but rather we provide access to the service via a hosting arrangement. Revenue in these arrangements is recognized ratably as the services are provided. A substantial portion of our revenue is from sales of our products and services through distribution channel partners, such as resellers and distributors. Our customers predominantly purchase PCS services in conjunction with purchases of our products. We recognize services revenue ratably over the term of the PCS contract, which is typically one year, but can be up to seven years. We sell our products globally to service providers and enterprises that depend on data center applications and networks to generate revenue and manage operations efficiently. We report two customer verticals: service providers and enterprises and we report customer revenues in three broad geographic regions: the Americas, APJ and EMEA regions. In the three months ended March 31, 2022, we changed the way we present revenue by geographic region. The Americas region comprises the United States and all other countries in the Americas (excluding the United States). The APJ region comprises Japan and all other countries in APAC (excluding Japan). We believe this vertical and revised geographic view aligns with how we manage the business and maps our product portfolio to customer verticals. This change in the way we report revenue had no impact to our key metrics including operations, comprehensive income and accumulated deficit. Our end-customers operate in a variety of industries, including telecommunications, technology, industrial, retail, financial, gaming, education and government. Since inception, our customer base has grown rapidly. As of March 31, 2023, we have sold our products to more than 8,100 end-customers worldwide since our inception. We sell substantially all of our solutions through our high-touch sales organization as well as distribution channel partners, including distributors, value-added resellers and system integrators, and fulfill nearly all orders globally through such partners. We believe this sales approach allows us to obtain the benefits of channel distribution, such as expanding our market coverage, while still maintaining face-to-face relationships with our end-customers. We outsource the manufacturing of our hardware products to original design manufacturers. We perform quality assurance and testing at our San Jose, Taiwan and Japan distribution centers, as well as at our manufacturers’ locations. Basis of Presentation The accompanying unaudited condensed consolidated financial statements include those of A10 Networks, Inc. and its subsidiaries after elimination of all intercompany accounts and transactions. We have prepared the accompanying unaudited condensed consolidated financial statements pursuant to the rules and regulations of the United States Securities and Exchange Commission (the “SEC” or the “Commission”). As permitted under these rules and regulations, we have condensed or omitted certain financial information and footnote disclosures we normally include in our annual consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The unaudited condensed consolidated balance sheet as of December 31, 2022 has been derived from our audited financial statements, which are included in our 2022 Annual Report on Form 10-K for the year ended December 31, 2022 on file with the SEC (the “2022 Annual Report”). These financial statements have been prepared on the same basis as our annual financial statements and, in management’s opinion, reflect all adjustments consisting only of normal recurring adjustments that are necessary for a fair presentation of our financial information. Our interim period operating results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. These financial statements and accompanying notes should be read in conjunction with the financial statements and accompanying notes thereto in the 2022 Annual Report. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Those estimates and assumptions affect revenue recognition and deferred revenue, the allowance for doubtful accounts, the sales return reserve, the valuation of inventory, the fair value of marketable securities, contingencies and litigation, accrued liabilities, deferred commissions and the determination of fair value of stock-based compensation. These estimates are based on information available as of the date of the condensed consolidated financial statements. Significant Accounting Policies The Company’s significant accounting policies are disclosed in Part II – Item 8, “Financial Statements and Supplementary Data” of the 2022 Annual Report filed with the SEC on February 27, 2023. There have been no material changes to the Company’s significant accounting policies during the three months ended March 31, 2023. Concentration of Credit Risk and Significant Customers Financial instruments that potentially subject us to concentrations of credit risk consist of cash, cash equivalents, marketable securities and accounts receivable. Our cash, cash equivalents and marketable securities are held and invested in high-credit quality financial instruments by recognized financial institutions and are subject to minimum credit risk. Our accounts receivable are unsecured and represent amounts due to us based on contractual obligations of our customers. We mitigate credit risk in respect to accounts receivable by performing periodic credit evaluations based on a number of factors, including past transaction experience, evaluation of credit history and review of the invoicing terms of the contract. We generally do not require our customers to provide collateral to support accounts receivable. Significant customers, including distribution channel partners and direct customers (end-customers), are those which represent 10% or more of our total revenue for each period presented or our gross accounts receivable balance as of each respective balance sheet date. Revenues from our significant customers as a percentage of our total revenue are as follows: Three Months Ended March 31, Customers 2023 2022 Customer A (an end-customer) 15% * Customer B (an end-customer) * 17% Customer C (a distribution channel partner) 19% 11% * represents less than 10% of total revenue As of March 31, 2023, one customer accounted for 31% of our total gross accounts receivable. As of December 31, 2022, two customers accounted for 21% each of our total gross accounts receivable. Recently Adopted Accounting Pronouncements The Company’s recently adopted accounting pronouncements are disclosed in Note 1 Description of Business and Summary of Significant Accounting Policies of the notes to consolidated financial statements included in Part II – Item 8 of the 2022 Annual Report. The Company has not adopted any accounting pronouncements during the three months ended March 31, 2023.

Leases

Leases	3 Months Ended
	Mar. 31, 2023
Leases [Abstract]
Leases	Leases The Company leases various operating spaces in the United States, Asia and Europe under non-cancellable operating lease arrangements that expire on various dates through July 2027. These arrangements require us to pay certain operating expenses, such as taxes, repairs and insurance, and contain renewal and escalation clauses. The table below presents the Company’s right-of-use assets and lease liabilities as of March 31, 2023 (in thousands): As of March 31, 2023 Operating leases Right-of-use assets: Other non-current assets $ 19,999 Total right-of-use assets $ 19,999 Lease liabilities: Accrued liabilities $ 4,853 Other non-current liabilities 15,597 Total operating lease liabilities $ 20,450 The aggregate future lease payments for non-cancelable operating leases as of March 31, 2023 were as follows (in thousands): Remainder of 2023 $ 4,051 2024 5,509 2025 4,969 2026 4,892 2027 2,441 Thereafter — Total lease payments 21,862 Less: imputed interest (1,412) Present value of lease liabilities $ 20,450 The components of lease costs were as follows (in thousands): Three Months Ended March 31, 2023 2022 Operating lease costs $ 1,110 $ 1,071 Short-term lease costs 127 130 Total lease costs $ 1,237 $ 1,201 Average lease terms and discount rates for the Company’s operating leases were as follows: Three Months Ended March 31, 2023 Weighted-average remaining term (years) 4.07 Weighted-average discount rate 3.2% Supplemental cash flow information for the Company’s operating leases were as follows (in thousands): Three Months Ended March 31, 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,357 Right-of-use assets obtained in exchange for new lease liabilities $ —

Marketable Securities and Fair

Marketable Securities and Fair Value Measurements	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Marketable Securities and Fair Value Measurements	Marketable Securities and Fair Value Measurements Marketable Securities Marketable securities, classified as available-for-sale, consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Corporate securities $ 26,719 $ 3 $ (310) $ 26,412 $ 35,137 $ — $ (550) $ 34,587 U.S. Treasury and agency securities 35,537 31 (152) 35,416 28,627 — (292) 28,335 Commercial paper 7,894 — — 7,894 11,859 — — 11,859 Asset-backed securities 6,275 40 (15) 6,300 8,331 — (94) 8,237 Total $ 76,425 $ 74 $ (477) $ 76,022 $ 83,954 $ — $ (936) $ 83,018 During the three months ended March 31, 2023 and 2022, we did not reclassify any amount to earnings from accumulated other comprehensive income related to unrealized gains or losses. The following table summarizes the cost and estimated fair value of marketable securities based on stated effective maturities as of March 31, 2023 (in thousands): As of March 31, 2023 Amortized Cost Fair Value Less than 1 year $ 58,601 $ 58,192 Mature in 1 - 3 years 17,824 17,830 Total $ 76,425 $ 76,022 All available-for-sale securities have been classified as current because they are available for use in current operations. Marketable securities in an unrealized loss position as of March 31, 2023 consisted of the following (in thousands): Less Than 12 Months 12 Months or More Total As of March 31, 2023 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate securities $ 1,188 $ (8) $ 20,592 $ (302) $ 21,780 $ (310) U.S. Treasury and agency securities 26,521 (43) 8,385 (109) 34,906 (152) Asset-backed securities 1,382 (15) — — 1,382 (15) $ 29,091 $ (66) $ 28,977 $ (411) $ 58,068 $ (477) Marketable securities in an unrealized loss position as of December 31, 2022 consisted of the following (in thousands): Less Than 12 Months 12 Months or More Total As of December 31, 2022 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate securities $ 7,610 $ (162) $ 26,977 $ (388) $ 34,587 $ (550) U.S. Treasury and agency securities 14,868 (45) 11,567 (247) 26,435 (292) Asset-backed securities 8,237 (4) — — 8,237 (94) $ 30,715 $ (301) $ 38,544 $ (635) $ 69,259 $ (936) Based on evaluation of securities that have been in a continuous loss position, we did not recognize any other-than-temporary impairment charges during the three months ended March 31, 2023 and 2022. Fair Value Measurements The following is a summary of our cash, cash equivalents and marketable securities measured at fair value on a recurring basis (in thousands): As of March 31, 2023 As of December 31, 2022 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Cash $ 46,814 $ — $ — $ 46,814 $ 54,336 $ — $ — $ 54,336 Cash equivalents 21,705 — — 21,705 13,635 — — 13,635 Corporate securities — 26,412 — 26,412 — 34,587 — 34,587 U.S. Treasury and agency securities — 35,416 — 35,416 — 28,335 — 28,335 Commercial paper — 7,894 — 7,894 — 11,859 — 11,859 Asset-backed securities — 6,300 — 6,300 — 8,237 — 8,237 Total $ 68,519 $ 76,022 $ — $ 144,541 $ 67,971 $ 83,018 $ — $ 150,989 There were no transfers between Level 1 and Level 2 fair value measurement categories during the three months ended March 31, 2023 and 2022.

Condensed Consolidated Financia

Condensed Consolidated Financial Statement Details	3 Months Ended
	Mar. 31, 2023
Property, Plant and Equipment [Abstract]
Condensed Consolidated Financial Statement Details	Condensed Consolidated Financial Statement Details Inventory Inventory consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Raw materials $ 13,052 $ 12,771 Finished goods 7,339 6,922 Total inventory $ 20,391 $ 19,693 Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Prepaid expenses $ 5,525 $ 5,310 Deferred contract acquisition costs 6,103 6,144 Other 1,426 1,927 Total prepaid expenses and other current assets $ 13,054 $ 13,381 Property and Equipment, Net Property and equipment, net, consisted of the following (in thousands): Useful Life As of March 31, 2023 As of December 31, 2022 (in years) Equipment 1 - 5 $ 28,135 $ 27,028 Software (1) 1 - 6 2,695 2,537 Furniture and fixtures 1 - 7 500 503 Leasehold improvements Lease term 3,228 3,267 Construction in process 10,286 9,152 Property and equipment, gross 44,844 42,487 Less: accumulated depreciation (22,539) (22,744) Property and equipment, net $ 22,305 $ 19,743 (1) Acquired software has a useful life of 1 to 3 years, while internally developed software to be sold, leased or marketed has a useful life of 6 years. Acquired software totaled $1.3 million and internally developed software totaled $1.4 million as of March 31, 2023. Acquired software totaled $2.5 million as of December 31, 2022. Construction in process primarily consists of deferred software development costs related to several projects that are expected to take longer than one year to complete. The first of these projects was available for release to customers in the fourth quarter of 2022. Depreciation expense on property and equipment was $0.9 million and $0.7 million for the three months ended March 31, 2023 and 2022, respectively. Accrued Liabilities Accrued liabilities consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Accrued compensation and benefits $ 7,486 $ 19,832 Accrued tax liabilities 1,558 1,635 Lease liability 4,853 4,792 Other 7,513 10,924 Total accrued liabilities $ 21,410 $ 37,183 Deferred Revenue Deferred revenue consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Deferred revenue: Products $ 6,923 $ 7,782 Services 121,575 119,210 Total deferred revenue 128,498 126,992 Less: current portion (75,729) (74,340) Non-current portion $ 52,769 $ 52,652

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Lease Commitments We lease various operating spaces in the United States, Asia and Europe under non-cancelable operating lease arrangements that expire on various dates through July 2027. These arrangements require us to pay certain operating expenses, such as taxes, repairs and insurance, and contain renewal and escalation clauses. We recognize rent expense under these arrangements on a straight-line basis over the term of the lease. See Note 2 – Leases for the Company’s aggregate future lease payments for the Company’s non-cancelable operating leases as of March 31, 2023. Rent expense was $1.2 million for both the three months ended March 31, 2023 and 2022. Purchase Commitments We have open purchase commitments with third-party contract manufacturers with facilities in Taiwan to supply nearly all of our finished goods inventories, spare parts, and accessories. These purchase orders are expected to be paid within one year of the issuance date. We had open purchase commitments with manufacturers in Taiwan totaling $26.1 million as of March 31, 2023. Guarantees and Indemnifications In the normal course of business, we provide indemnifications to customers against claims of intellectual property infringement made by third parties arising from the use of our products. Other guarantees or indemnification arrangements include guarantees of product and service performance, and standby letters of credit for lease facilities and corporate credit cards. We have not recorded a liability related to these indemnification and guarantee provisions and our guarantees and indemnification arrangements have not had any significant impact on our condensed consolidated financial statements to date.

Equity Incentive Plans and Stoc

Equity Incentive Plans and Stock-Based Compensation	3 Months Ended
	Mar. 31, 2023
Share-based Payment Arrangement [Abstract]
Equity Incentive Plans and Stock-Based Compensation	Equity Incentive Plans, Stock-Based Compensation and Stock Repurchase Program Equity Incentive Plans 2014 Equity Incentive Plan The 2014 Equity Incentive Plan (the “2014 Plan”) provides for the granting of stock options, restricted stock awards, restricted stock units (“RSUs”), performance-based RSUs (“PSUs”), stock appreciation rights, performance units and performance shares to our employees, consultants and members of our Board of Directors. The shares authorized for the 2014 Plan increase annually by the lesser of (i) 8,000,000 shares, (ii) 5% of the outstanding shares of common stock on the last day of our immediately preceding fiscal year, or (iii) such other lesser amount as determined by our Board of Directors. Since November 2020, our Board of Directors determined the number of shares authorized under the 2014 Plan were sufficient for the time being and decided not to increase the number of shares authorized in 2021, 2022 and 2023. As of March 31, 2023, we had 12,793,083 shares available for future grant under the 2014 Plan. On April 26, 2023, the Company’s stockholders approved the A10 Networks, Inc. 2023 Stock Incentive Plan (the “2023 Plan”), which was approved by the Company’s Board of Directors on March 10, 2023, pending stockholder approval. The 2023 Plan replaced the 2014 Plan and no further grants will be made under the 2014 Plan after the 2023 Plan becomes effective. 2014 Employee Stock Purchase Plan The 2014 Employee Stock Purchase Plan, as amended (the “Amended 2014 Purchase Plan”) provides employees with an opportunity to purchase our common stock through accumulated contributions, up to a maximum of 10% of eligible compensation, with offering periods of six months in duration, beginning on or about December 1 and June 1 each year. As of March 31, 2023, the Company had 1,111,702 shares available for future issuance under the Amended 2014 Purchase Plan. Stock-Based Compensation A summary of our stock-based compensation expense is as follows (in thousands): Three Months Ended March 31, 2023 2022 Stock-based compensation by type of award: Stock awards $ 3,443 $ 3,100 Employee stock purchase rights 299 352 $ 3,742 $ 3,452 Stock-based compensation by category of expense: Cost of revenue $ 412 $ 399 Sales and marketing 1,165 1,099 Research and development 831 788 General and administrative 1,334 1,166 $ 3,742 $ 3,452 As of March 31, 2023, the Company had $30.6 million of unrecognized stock-based compensation expense related to unvested stock-based awards, including under our Amended 2014 Purchase Plan, which will be recognized over a weighted-average period of 2.40 years. Stock Options The following table summarizes our stock option activities and related information: Number of Shares (thousands) Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contractual Term Aggregate Intrinsic Value (thousands) Outstanding as of December 31, 2022 279 $ 6.59 Exercised (78) 6.02 Outstanding as of March 31, 2023 201 6.82 1.25 $ 1,743 Vested and exercisable as of March 31, 2023 201 $ 6.82 1.25 $ 1,743 As of March 31, 2023, the aggregate intrinsic value represents the excess of the closing price of our common stock of $15.49 over the exercise price of the outstanding in-the-money options. The intrinsic value of options exercised was $0.7 million and $0.3 million during the three months ended March 31, 2023 and 2022, respectively. Stock Awards The Company has granted RSUs to its employees, consultants and members of its Board of Directors, and PSUs to certain executives and employees. The Company’s PSUs have market performance-based vesting conditions as well as service-based vesting conditions. As of March 31, 2023, there were 2,478,499 RSUs and 877,794 PSUs outstanding. The following table summarizes our stock award activities and related information: Number of Shares (thousands) Weighted-Average Grant Date Fair Value Per Share Weighted-Average Remaining Vesting Term Aggregate Fair Value (thousands) Nonvested as of December 31, 2022 3,218 $ 11.14 Granted 571 13.34 Released (380) 7.95 Canceled (53) 12.18 Nonvested as of March 31, 2023 3,356 $ 11.86 1.75 $ 51,989 The aggregate fair value of stock awards released was $3.0 million and $2.4 million for the three months ended March 31, 2023 and 2022, respectively. Stock Repurchase Programs On October 28, 2021, the Company announced its Board of Directors authorized a stock repurchase program of up to $100 million of its common stock over a period of twelve months (the “2021 Program”). During the three months ended March 31, 2022, the Company repurchased 2.1 million shares for a total cost of $28.3 million under the 2021 Program. This repurchase program was active for twelve months and expired in the second half of 2022. On November 1, 2022, the Company announced its Board of Directors authorized a new stock repurchase program of up to $50 million of its common stock over a period of twelve months (the “2022 Program”). Through March 31, 2023, no shares had been repurchased under the 2022 Program. Under the Company’s stock repurchase programs, repurchased shares are held in treasury at cost. The Company’s stock repurchase programs do not obligate it to acquire any specific number of shares. Shares may be repurchased in privately negotiated and/or open market transactions, including under plans complying with Rule 10b5-1 under the Exchange Act.

Net Income Per Share

Net Income Per Share	3 Months Ended
	Mar. 31, 2023
Earnings Per Share [Abstract]
Net Income Per Share	Net Income Per Share Basic net income per share is computed using the weighted average number of common shares outstanding for the period. Diluted net income per share applying the treasury stock method is computed using the weighted average number of common shares outstanding for the period plus potential dilutive common shares, including stock options, RSUs, PSUs and employee stock purchase rights, unless the potential common shares are anti-dilutive. Basic and diluted net income per share are calculated as follows (in thousands, except per share amounts): Three Months Ended March 31, 2023 2022 Basic and diluted net income per share Numerator: Net income $ 3,958 $ 6,349 Denominator: Weighted-average shares outstanding - basic 74,001 76,795 Effect of dilutive potential common shares from stock options, stock awards and employee stock purchase plan 1,540 2,490 Weighted-average shares outstanding - diluted 75,541 79,285 Net income per share: Basic $ 0.05 $ 0.08 Diluted $ 0.05 $ 0.08 The following table presents common shares related to potentially dilutive shares excluded from the calculation of diluted net income per share as their effect would have been anti-dilutive (in thousands): Three Months Ended March 31, 2023 2022 Stock options, restricted stock units and employee stock purchase rights 186 233

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We recorded income tax expense of $1.0 million and income tax benefit of $1.1 million for the three months ended March 31, 2023 and 2022, respectively. The Company’s income tax provision for the three months ended March 31, 2023 and 2022 primarily consisted of U.S. federal and state taxes. We had $7.1 million of unrecognized tax benefits as of March 31, 2023. We do not anticipate a material change to our unrecognized tax benefits over the next twelve months. Unrecognized tax benefits may change during the next twelve months for items that arise in the ordinary course of business. Accrued interest and penalties related to unrecognized tax benefits are recognized as part of our provision for income taxes in our condensed consolidated statements of operations. We are subject to taxation in the United States, various states, and several foreign jurisdictions. Because we have net operating loss and credit carryforwards, there are open statutes of limitations in which federal, state and foreign taxing authorities may examine our tax returns for all years from 2005 through the current period. We are not currently under examination by any taxing authorities. On June 29, 2020, the California Governor signed Assembly Bill 85, which includes several tax measures, provides for a three-year suspension of the use of net operating losses for medium and large businesses and a three-year limit on the use of

Geographic Information

Geographic Information	3 Months Ended
	Mar. 31, 2023
Segment Reporting [Abstract]
Geographic Information	Geographic Information We report customer revenues in three broad geographic regions: the Americas, APJ and EMEA regions. In the three months ended March 31, 2022, we changed the way we present revenue by geographic region. The Americas region comprises the United States and all other countries in the Americas (excluding the United States). The APJ region comprises Japan and all other countries in APAC (excluding Japan). We believe this vertical and revised geographic view aligns with how we manage the business and maps our product portfolio to customer verticals. This change in the way we report revenue had no impact to our key metrics including operations, comprehensive income and accumulated deficit. The following table depicts the disaggregation of revenue by geographic region based on the ship to location of our customers and is consistent with how we evaluate our financial performance (in thousands): Three Months Ended March 31, 2023 2022 Americas $ 29,956 $ 32,958 United States 24,121 29,174 Americas-other 5,835 3,784 APJ 15,760 17,789 APAC 5,431 6,249 Japan 10,329 11,540 EMEA 11,975 11,925 Total revenue $ 57,691 $ 62,672 The following table is a summary of our long-lived assets which include property and equipment, net and operating lease right-of-use assets based on the physical location of the assets (in thousands): As of March 31, 2023 As of December 31, 2022 Americas $ 39,093 $ 37,420 Japan 1,645 1,852 Other 1,566 1,668 Total $ 42,304 $ 40,940

Revenue Revenue

Revenue Revenue	3 Months Ended
	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Contract Balances The following table reflects contract balances with customers (in thousands): As of March 31, 2023 As of December 31, 2022 Accounts receivable, net $ 67,007 $ 72,928 Deferred revenue, current 75,729 74,340 Deferred revenue, non-current 52,769 52,652 We receive payments from customers based upon billing cycles. Invoice payment terms usually range from 30 to 90 days. Accounts receivable are recorded when the right to consideration becomes unconditional. Contract assets include amounts related to our contractual right to consideration for performance obligations not yet billed and are included in prepaid and other current assets in the condensed consolidated balance sheets. The amounts were immaterial as of March 31, 2023 and December 31, 2022. Deferred revenue primarily consists of amounts that have been invoiced but not yet been recognized as revenue and consists of performance obligations pertaining to support and subscription services. We recognized revenue of $25.2 million and $24.6 million during the three months ended March 31, 2023 and 2022, respectively, related to deferred revenues at the beginning of the respective periods. Deferred Contract Acquisition Costs We capitalize certain contract acquisition costs consisting of incremental sales commissions incurred to obtain customer contracts. Deferred commissions related to product revenues are recognized upon transfer of control to customers. Deferred commissions related to services revenue are recognized as the related performance obligations are met. Deferred commissions that will be recognized during the succeeding 12-month period are recorded as prepaid expenses and other current assets, and the remaining portion is recorded as other non-current assets. Amortization of deferred commissions is included in sales and marketing expense. As of March 31, 2023, the current and non-current portions of deferred contract acquisition costs were $6.1 million and $4.1 million, respectively. As of December 31, 2022, the current and non-current portions of deferred contract acquisition costs were $6.1 million and $4.3 million, respectively. Related amortization expense was $1.9 million and $2.0 million for the three months ended March 31, 2023 and 2022, respectively. We had no impairment loss in relation to the costs capitalized and no asset impairment charges related to contract assets during the three months ended March 31, 2023 and 2022. Remaining Performance Obligations Remaining performance obligations represent contracted revenues that are non-cancellable and have not yet been recognized due to unsatisfied or partially satisfied performance obligations, which include deferred revenues and amounts that will be invoiced and recognized as revenues in future periods. We expect to recognize revenue on the remaining performance obligations as follows (in thousands): As of March 31, 2023 Within 1 year $ 75,729 Next 2 to 3 years 43,409 Thereafter 9,360 Total $ 128,498

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsOn May 4, 2023, the Company announced its Board of Directors declared a quarterly cash dividend. The dividend, in the amount of $0.06 per share outstanding, will be paid on June 1, 2023 to stockholders of record on May 15, 2023 as a return of capital. Future dividends will be subject to further review and approval by the Board in accordance with applicable law. The Board reserves the right to adjust or withdraw the quarterly dividend in future periods as it reviews the Company’s capital allocation strategy from time-to-time.

Description of Business and S_2

Description of Business and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements include those of A10 Networks, Inc. and its subsidiaries after elimination of all intercompany accounts and transactions. We have prepared the accompanying unaudited condensed consolidated financial statements pursuant to the rules and regulations of the United States Securities and Exchange Commission (the “SEC” or the “Commission”). As permitted under these rules and regulations, we have condensed or omitted certain financial information and footnote disclosures we normally include in our annual consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The unaudited condensed consolidated balance sheet as of December 31, 2022 has been derived from our audited financial statements, which are included in our 2022 Annual Report on Form 10-K for the year ended December 31, 2022 on file with the SEC (the “2022 Annual Report”). These financial statements have been prepared on the same basis as our annual financial statements and, in management’s opinion, reflect all adjustments consisting only of normal recurring adjustments that are necessary for a fair presentation of our financial information. Our interim period operating results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. These financial statements and accompanying notes should be read in conjunction with the financial statements and accompanying notes thereto in the 2022 Annual Report.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Those estimates and assumptions affect revenue recognition and deferred revenue, the allowance for doubtful accounts, the sales return reserve, the valuation of inventory, the fair value of marketable securities, contingencies and litigation, accrued liabilities, deferred commissions and the determination of fair value of stock-based compensation. These estimates are based on information available as of the date of the condensed consolidated financial statements.
Concentration of Credit Risk and Significant Customers	Concentration of Credit Risk and Significant Customers Financial instruments that potentially subject us to concentrations of credit risk consist of cash, cash equivalents, marketable securities and accounts receivable. Our cash, cash equivalents and marketable securities are held and invested in high-credit quality financial instruments by recognized financial institutions and are subject to minimum credit risk. Our accounts receivable are unsecured and represent amounts due to us based on contractual obligations of our customers. We mitigate credit risk in respect to accounts receivable by performing periodic credit evaluations based on a number of factors, including past transaction experience, evaluation of credit history and review of the invoicing terms of the contract. We generally do not require our customers to provide collateral to support accounts receivable. Significant customers, including distribution channel partners and direct customers (end-customers), are those which represent 10% or more of our total revenue for each period presented or our gross accounts receivable balance as of each respective balance sheet date.
Recently Adopted Accounting Guidance/Recent Accounting Pronouncements Not Yet Effective	Recently Adopted Accounting Pronouncements The Company’s recently adopted accounting pronouncements are disclosed in Note 1 Description of Business and Summary of Significant Accounting Policies of the notes to consolidated financial statements included in Part II – Item 8 of the 2022 Annual Report. The Company has not adopted any accounting pronouncements during the three months ended March 31, 2023.
Deferred Contract Acquisition Costs	Deferred Contract Acquisition Costs We capitalize certain contract acquisition costs consisting of incremental sales commissions incurred to obtain customer contracts. Deferred commissions related to product revenues are recognized upon transfer of control to customers. Deferred commissions related to services revenue are recognized as the related performance obligations are met. Deferred commissions that will be recognized during the succeeding 12-month period are recorded as prepaid expenses and other current assets, and the remaining portion is recorded as other non-current assets. Amortization of deferred commissions is included in sales and marketing expense.

Description of Business and S_3

Description of Business and Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Revenue as Percentage of Total Revenue	Three Months Ended March 31, Customers 2023 2022 Customer A (an end-customer) 15% * Customer B (an end-customer) * 17% Customer C (a distribution channel partner) 19% 11% * represents less than 10% of total revenue

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2023
Leases [Abstract]
Assets And Liabilities,	The table below presents the Company’s right-of-use assets and lease liabilities as of March 31, 2023 (in thousands): As of March 31, 2023 Operating leases Right-of-use assets: Other non-current assets $ 19,999 Total right-of-use assets $ 19,999 Lease liabilities: Accrued liabilities $ 4,853 Other non-current liabilities 15,597 Total operating lease liabilities $ 20,450
Lease Payments	The aggregate future lease payments for non-cancelable operating leases as of March 31, 2023 were as follows (in thousands): Remainder of 2023 $ 4,051 2024 5,509 2025 4,969 2026 4,892 2027 2,441 Thereafter — Total lease payments 21,862 Less: imputed interest (1,412) Present value of lease liabilities $ 20,450
Lease Costs	Three Months Ended March 31, 2023 2022 Operating lease costs $ 1,110 $ 1,071 Short-term lease costs 127 130 Total lease costs $ 1,237 $ 1,201 Average lease terms and discount rates for the Company’s operating leases were as follows: Three Months Ended March 31, 2023 Weighted-average remaining term (years) 4.07 Weighted-average discount rate 3.2% Supplemental cash flow information for the Company’s operating leases were as follows (in thousands): Three Months Ended March 31, 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,357 Right-of-use assets obtained in exchange for new lease liabilities $ —

Marketable Securities and Fai_2

Marketable Securities and Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Available-for-sale Securities	Marketable securities, classified as available-for-sale, consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Corporate securities $ 26,719 $ 3 $ (310) $ 26,412 $ 35,137 $ — $ (550) $ 34,587 U.S. Treasury and agency securities 35,537 31 (152) 35,416 28,627 — (292) 28,335 Commercial paper 7,894 — — 7,894 11,859 — — 11,859 Asset-backed securities 6,275 40 (15) 6,300 8,331 — (94) 8,237 Total $ 76,425 $ 74 $ (477) $ 76,022 $ 83,954 $ — $ (936) $ 83,018
Schedule of Cost and Estimated Fair Values of Available-for-sale Securities by Contractual Maturity	The following table summarizes the cost and estimated fair value of marketable securities based on stated effective maturities as of March 31, 2023 (in thousands): As of March 31, 2023 Amortized Cost Fair Value Less than 1 year $ 58,601 $ 58,192 Mature in 1 - 3 years 17,824 17,830 Total $ 76,425 $ 76,022
Schedule of gross unrealized losses	Marketable securities in an unrealized loss position as of March 31, 2023 consisted of the following (in thousands): Less Than 12 Months 12 Months or More Total As of March 31, 2023 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate securities $ 1,188 $ (8) $ 20,592 $ (302) $ 21,780 $ (310) U.S. Treasury and agency securities 26,521 (43) 8,385 (109) 34,906 (152) Asset-backed securities 1,382 (15) — — 1,382 (15) $ 29,091 $ (66) $ 28,977 $ (411) $ 58,068 $ (477) Marketable securities in an unrealized loss position as of December 31, 2022 consisted of the following (in thousands): Less Than 12 Months 12 Months or More Total As of December 31, 2022 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate securities $ 7,610 $ (162) $ 26,977 $ (388) $ 34,587 $ (550) U.S. Treasury and agency securities 14,868 (45) 11,567 (247) 26,435 (292) Asset-backed securities 8,237 (4) — — 8,237 (94) $ 30,715 $ (301) $ 38,544 $ (635) $ 69,259 $ (936)
Schedule of Cash, Cash Equivalents and Available-for-sale Investments Measured at Fair Value on Recurring Basis	The following is a summary of our cash, cash equivalents and marketable securities measured at fair value on a recurring basis (in thousands): As of March 31, 2023 As of December 31, 2022 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Cash $ 46,814 $ — $ — $ 46,814 $ 54,336 $ — $ — $ 54,336 Cash equivalents 21,705 — — 21,705 13,635 — — 13,635 Corporate securities — 26,412 — 26,412 — 34,587 — 34,587 U.S. Treasury and agency securities — 35,416 — 35,416 — 28,335 — 28,335 Commercial paper — 7,894 — 7,894 — 11,859 — 11,859 Asset-backed securities — 6,300 — 6,300 — 8,237 — 8,237 Total $ 68,519 $ 76,022 $ — $ 144,541 $ 67,971 $ 83,018 $ — $ 150,989

Condensed Consolidated Financ_2

Condensed Consolidated Financial Statement Details (Tables)	3 Months Ended
	Mar. 31, 2023
Property, Plant and Equipment [Abstract]
Schedule of Inventory	Inventory consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Raw materials $ 13,052 $ 12,771 Finished goods 7,339 6,922 Total inventory $ 20,391 $ 19,693
Prepaid Expenses and Other Current Assets	Prepaid expenses and other current assets consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Prepaid expenses $ 5,525 $ 5,310 Deferred contract acquisition costs 6,103 6,144 Other 1,426 1,927 Total prepaid expenses and other current assets $ 13,054 $ 13,381
Schedule of Property and Equipment, Net	Property and equipment, net, consisted of the following (in thousands): Useful Life As of March 31, 2023 As of December 31, 2022 (in years) Equipment 1 - 5 $ 28,135 $ 27,028 Software (1) 1 - 6 2,695 2,537 Furniture and fixtures 1 - 7 500 503 Leasehold improvements Lease term 3,228 3,267 Construction in process 10,286 9,152 Property and equipment, gross 44,844 42,487 Less: accumulated depreciation (22,539) (22,744) Property and equipment, net $ 22,305 $ 19,743
Schedule of Accrued Liabilities	Accrued liabilities consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Accrued compensation and benefits $ 7,486 $ 19,832 Accrued tax liabilities 1,558 1,635 Lease liability 4,853 4,792 Other 7,513 10,924 Total accrued liabilities $ 21,410 $ 37,183
Schedule of Deferred Revenue	Deferred revenue consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Deferred revenue: Products $ 6,923 $ 7,782 Services 121,575 119,210 Total deferred revenue 128,498 126,992 Less: current portion (75,729) (74,340) Non-current portion $ 52,769 $ 52,652 The following table reflects contract balances with customers (in thousands): As of March 31, 2023 As of December 31, 2022 Accounts receivable, net $ 67,007 $ 72,928 Deferred revenue, current 75,729 74,340 Deferred revenue, non-current 52,769 52,652

Equity Incentive Plans and St_2

Equity Incentive Plans and Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2023
Share-based Payment Arrangement [Abstract]
Summary of Stock-based Compensation	A summary of our stock-based compensation expense is as follows (in thousands): Three Months Ended March 31, 2023 2022 Stock-based compensation by type of award: Stock awards $ 3,443 $ 3,100 Employee stock purchase rights 299 352 $ 3,742 $ 3,452 Stock-based compensation by category of expense: Cost of revenue $ 412 $ 399 Sales and marketing 1,165 1,099 Research and development 831 788 General and administrative 1,334 1,166 $ 3,742 $ 3,452
Summary of Activity under Stock Option Plans	The following table summarizes our stock option activities and related information: Number of Shares (thousands) Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contractual Term Aggregate Intrinsic Value (thousands) Outstanding as of December 31, 2022 279 $ 6.59 Exercised (78) 6.02 Outstanding as of March 31, 2023 201 6.82 1.25 $ 1,743 Vested and exercisable as of March 31, 2023 201 $ 6.82 1.25 $ 1,743
Summary of Restricted Stock Units Activity	The following table summarizes our stock award activities and related information: Number of Shares (thousands) Weighted-Average Grant Date Fair Value Per Share Weighted-Average Remaining Vesting Term Aggregate Fair Value (thousands) Nonvested as of December 31, 2022 3,218 $ 11.14 Granted 571 13.34 Released (380) 7.95 Canceled (53) 12.18 Nonvested as of March 31, 2023 3,356 $ 11.86 1.75 $ 51,989

Net Income Per Share (Tables)

Net Income Per Share (Tables)	3 Months Ended
	Mar. 31, 2023
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Basic and diluted net income per share are calculated as follows (in thousands, except per share amounts): Three Months Ended March 31, 2023 2022 Basic and diluted net income per share Numerator: Net income $ 3,958 $ 6,349 Denominator: Weighted-average shares outstanding - basic 74,001 76,795 Effect of dilutive potential common shares from stock options, stock awards and employee stock purchase plan 1,540 2,490 Weighted-average shares outstanding - diluted 75,541 79,285 Net income per share: Basic $ 0.05 $ 0.08 Diluted $ 0.05 $ 0.08
Summary of Anti-dilutive Shares	The following table presents common shares related to potentially dilutive shares excluded from the calculation of diluted net income per share as their effect would have been anti-dilutive (in thousands): Three Months Ended March 31, 2023 2022 Stock options, restricted stock units and employee stock purchase rights 186 233

Geographic Information (Tables)

Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2023
Segment Reporting [Abstract]
Schedule of Total Revenue Based on Customer's Location	The following table depicts the disaggregation of revenue by geographic region based on the ship to location of our customers and is consistent with how we evaluate our financial performance (in thousands): Three Months Ended March 31, 2023 2022 Americas $ 29,956 $ 32,958 United States 24,121 29,174 Americas-other 5,835 3,784 APJ 15,760 17,789 APAC 5,431 6,249 Japan 10,329 11,540 EMEA 11,975 11,925 Total revenue $ 57,691 $ 62,672
Long-lived Assets by Geographic Areas	The following table is a summary of our long-lived assets which include property and equipment, net and operating lease right-of-use assets based on the physical location of the assets (in thousands): As of March 31, 2023 As of December 31, 2022 Americas $ 39,093 $ 37,420 Japan 1,645 1,852 Other 1,566 1,668 Total $ 42,304 $ 40,940

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset and Liability	Deferred revenue consisted of the following (in thousands): As of March 31, 2023 As of December 31, 2022 Deferred revenue: Products $ 6,923 $ 7,782 Services 121,575 119,210 Total deferred revenue 128,498 126,992 Less: current portion (75,729) (74,340) Non-current portion $ 52,769 $ 52,652 The following table reflects contract balances with customers (in thousands): As of March 31, 2023 As of December 31, 2022 Accounts receivable, net $ 67,007 $ 72,928 Deferred revenue, current 75,729 74,340 Deferred revenue, non-current 52,769 52,652
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction	We expect to recognize revenue on the remaining performance obligations as follows (in thousands): As of March 31, 2023 Within 1 year $ 75,729 Next 2 to 3 years 43,409 Thereafter 9,360 Total $ 128,498

Description of Business and S_4

Description of Business and Summary of Significant Accounting Policies - Concentration Risk (Details)	3 Months Ended		9 Months Ended
	Mar. 31, 2023 tool solution	Mar. 31, 2022	Sep. 30, 2021
Entity Wide Revenue Major Customer [Line Items]
Number of software based advanced solutions | solution	6
Number Of Intelligent Management And Automation Tools | tool	2
Customer A | Revenue | Customer Concentration Risk
Entity Wide Revenue Major Customer [Line Items]
Percentage representation of significant customers (percent)	15%
Customer A | Accounts Receivable | Customer Concentration Risk
Entity Wide Revenue Major Customer [Line Items]
Percentage representation of significant customers (percent)	31%		21%
Customer B | Revenue | Customer Concentration Risk
Entity Wide Revenue Major Customer [Line Items]
Percentage representation of significant customers (percent)		17%
Customer C | Revenue | Customer Concentration Risk
Entity Wide Revenue Major Customer [Line Items]
Percentage representation of significant customers (percent)	19%	11%

Leases - Assets and Liabilities

Leases - Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Total right-of-use assets	$ 19,999
Accrued liabilities	4,853	$ 4,792
Other non-current liabilities	15,597
Total operating lease liabilities	$ 20,450

Leases - Lease Liabilities (Det

Leases - Lease Liabilities (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Leases [Abstract]
Remainder of 2023	$ 4,051
2021	5,509
2022	4,969
2023	4,892
2024	2,441
Thereafter	0
Total lease payments	21,862
Less: imputed interest	(1,412)
Present value of lease liabilities	$ 20,450

Leases - Lease Costs (Details)

Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Leases [Abstract]
Operating lease costs	$ 1,110	$ 1,071
Short-term lease costs	127	130
Total lease costs	$ 1,237	$ 1,201
Weighted-average remaining term (years)	4 years 25 days
Weighted-average discount rate	3.20%
Operating cash flows from operating leases	$ 1,357
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 0

Marketable Securities and Fai_3

Marketable Securities and Fair Value Measurements - Estimate of Fair Value of Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 76,425	$ 83,954
Gross Unrealized Gains	74	0
Gross Unrealized Losses	(477)	(936)
Fair Value	76,022	83,018
Corporate securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	26,719	35,137
Gross Unrealized Gains	3	0
Gross Unrealized Losses	(310)	(550)
Fair Value	26,412	34,587
U.S. Treasury and agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	35,537	28,627
Gross Unrealized Gains	31	0
Gross Unrealized Losses	(152)	(292)
Fair Value	35,416	28,335
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,894	11,859
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	7,894	11,859
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	6,275	8,331
Gross Unrealized Gains	40	0
Gross Unrealized Losses	(15)	(94)
Fair Value	$ 6,300	$ 8,237

Marketable Securities and Fai_4

Marketable Securities and Fair Value Measurements - Contractual Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Amortized Cost
Less than 1 year	$ 58,601
Mature in 1 - 3 years	17,824
Amortized Cost	76,425	$ 83,954
Fair Value
Less than 1 year	58,192
Mature in 1 - 3 years	17,830
Fair Value	$ 76,022	$ 83,018

Marketable Securities and Fai_5

Marketable Securities and Fair Value Measurements - Securities in Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Fair Value, Less Than 12 Months	$ 29,091	$ 30,715
Fair Value, 12 Months or More	28,977	38,544
Fair Value, Total	58,068	69,259
Gross Unrealized Losses, Less Than 12 Months	(66)	(301)
Gross Unrealized Losses,12 Months or More	(411)	(635)
Gross Unrealized Losses	(477)	(936)
Corporate securities
Debt Securities, Available-for-sale [Line Items]
Fair Value, Less Than 12 Months	1,188	7,610
Fair Value, 12 Months or More	20,592	26,977
Fair Value, Total	21,780	34,587
Gross Unrealized Losses, Less Than 12 Months	(8)	(162)
Gross Unrealized Losses,12 Months or More	(302)	(388)
Gross Unrealized Losses	(310)	(550)
U.S. Treasury and agency securities
Debt Securities, Available-for-sale [Line Items]
Fair Value, Less Than 12 Months	26,521	14,868
Fair Value, 12 Months or More	8,385	11,567
Fair Value, Total	34,906	26,435
Gross Unrealized Losses, Less Than 12 Months	(43)	(45)
Gross Unrealized Losses,12 Months or More	(109)	(247)
Gross Unrealized Losses	(152)	(292)
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Fair Value, Less Than 12 Months	1,382	8,237
Fair Value, 12 Months or More	0	0
Fair Value, Total	1,382	8,237
Gross Unrealized Losses, Less Than 12 Months	(15)	(4)
Gross Unrealized Losses,12 Months or More	0	0
Gross Unrealized Losses	$ (15)	$ (94)

Marketable Securities and Fai_6

Marketable Securities and Fair Value Measurements - Schedule of Fair Value of Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financial Assets
Marketable Securities	$ 76,022	$ 83,018
Level 1
Financial Assets
Total	68,519	67,971
Level 2
Financial Assets
Total	76,022	83,018
Fair Value, Inputs, Level 1, 2 and 3
Financial Assets
Total	144,541	150,989
Cash
Financial Assets
Cash and Cash Equivalents	46,814	54,336
Cash | Level 1
Financial Assets
Cash and Cash Equivalents	46,814	54,336
Cash equivalents
Financial Assets
Cash and Cash Equivalents	21,705	13,635
Cash equivalents | Level 1
Financial Assets
Cash and Cash Equivalents	21,705	13,635
Corporate securities
Financial Assets
Marketable Securities	26,412	34,587
Corporate securities | Level 2
Financial Assets
Marketable Securities	26,412	34,587
U.S. Treasury and agency securities
Financial Assets
Marketable Securities	35,416	28,335
U.S. Treasury and agency securities | Level 2
Financial Assets
Marketable Securities	35,416	28,335
Commercial paper
Financial Assets
Marketable Securities	7,894	11,859
Commercial paper | Level 2
Financial Assets
Marketable Securities	7,894	11,859
Asset-backed securities
Financial Assets
Marketable Securities	6,300	8,237
Asset-backed securities | Level 2
Financial Assets
Marketable Securities	$ 6,300	$ 8,237

Condensed Consolidated Financ_3

Condensed Consolidated Financial Statement Details - Schedule of Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 13,052	$ 12,771
Finished goods	7,339	6,922
Total inventory	$ 20,391	$ 19,693

Condensed Consolidated Financ_4

Condensed Consolidated Financial Statement Details - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Prepaid expenses	$ 5,525	$ 5,310
Deferred contract acquisition costs	6,103	6,144
Other	1,426	1,927
Total prepaid expenses and other current assets	$ 13,054	$ 13,381

Condensed Consolidated Financ_5

Condensed Consolidated Financial Statement Details - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 44,844		$ 42,487
Less: accumulated depreciation	(22,539)		(22,744)
Property and equipment, net	22,305		19,743
Depreciation expense	900	$ 700
Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	28,135		27,028
Software(1)
Property Plant And Equipment [Line Items]
Property and equipment, gross	2,695		2,537
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	500		503
Leasehold improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	3,228		3,267
Construction in process
Property Plant And Equipment [Line Items]
Property and equipment, gross	10,286		9,152
Acquired software
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,300		$ 2,500
Internally developed software
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 1,400
Minimum | Equipment
Property Plant And Equipment [Line Items]
Useful life	1 year
Minimum | Software(1)
Property Plant And Equipment [Line Items]
Useful life	1 year
Minimum | Furniture and fixtures
Property Plant And Equipment [Line Items]
Useful life	1 year
Minimum | Acquired software
Property Plant And Equipment [Line Items]
Useful life	1 year
Minimum | Internally developed software
Property Plant And Equipment [Line Items]
Useful life	6 years
Maximum | Equipment
Property Plant And Equipment [Line Items]
Useful life	5 years
Maximum | Software(1)
Property Plant And Equipment [Line Items]
Useful life	6 years
Maximum | Furniture and fixtures
Property Plant And Equipment [Line Items]
Useful life	7 years
Maximum | Acquired software
Property Plant And Equipment [Line Items]
Useful life	3 years

Condensed Consolidated Financ_6

Condensed Consolidated Financial Statement Details - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 0.9	$ 0.7

Condensed Consolidated Financ_7

Condensed Consolidated Financial Statement Details - Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Accrued Liabilities, Current [Abstract]
Accrued compensation and benefits	$ 7,486	$ 19,832
Accrued tax liabilities	1,558	1,635
Lease liability	4,853	4,792
Other	7,513	10,924
Total accrued liabilities	$ 21,410	$ 37,183

Condensed Consolidated Financ_8

Condensed Consolidated Financial Statement Details - Schedule of Deferred Revenue (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 128,498	$ 126,992
Less: current portion	(75,729)	(74,340)
Non-current portion	52,769	52,652
Products
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	6,923	7,782
Services
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 121,575	$ 119,210

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 1.2	$ 1.2
Remaining purchase commitments	$ 26.1

Equity Incentive Plans and St_3

Equity Incentive Plans and Stock-Based Compensation - 2014 Equity Incentive Plan/ESPP (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended
	Jun. 10, 2015	Oct. 31, 2018	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options exercised			$ 0.7	$ 0.3
2014 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future grant (in shares)			12,793,083
2014 Stock Incentive Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of outstanding shares of common stock	5%
Share-based Compensation Arrangement by Share-based Payment Award, Other Share Increase (Decrease)	8,000,000
Amended 2014 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future grant (in shares)			1,111,702
Amended 2014 Employee Stock Purchase Plan | ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of eligible compensation		10%
Offering period		6 months

Equity Incentive Plans and St_4

Equity Incentive Plans and Stock-Based Compensation - Schedule of Stock-based Compensation Awards Granted under Stock Option Plan in Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 3,742	$ 3,452
Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	412	399
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	1,165	1,099
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	831	788
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	1,334	1,166
Stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	3,443	3,100
Employee stock purchase rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 299	$ 352

Equity Incentive Plans and St_5

Equity Incentive Plans and Stock-Based Compensation - Stock-based Compensation/Stock Repurchase Program (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Share-based Payment Arrangement [Abstract]
Total compensation expense related to unvested awards granted, not yet recognized	$ 30.6
Total compensation expense related to unvested awards granted, not yet recognized weighted-average period for recognition (in years)	2 years 4 months 24 days

Equity Incentive Plans and St_6

Equity Incentive Plans and Stock-Based Compensation - Summary of Activity under Stock Option Plans (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Number of Shares (thousands)
Outstanding options, Beginning balance (in shares)	279
Exercised (in shares)	(78)
Outstanding options, Ending balance (in shares)	201
Vested and exercisable (in shares)	201
Weighted-Average Exercise Price Per Share
Beginning balance (in dollars per share)	$ 6.59
Exercised (in dollars per share)	6.02
Ending balance (in dollars per share)	6.82
Vested and exercisable at end of period (in dollars per share)	$ 6.82
Weighted-average remaining contractual term (in years)	1 year 3 months
Weighted average remaining contractual term, Vested and exercisable at end of period (in years)	1 year 3 months
Aggregate Intrinsic Value	$ 1,743
Aggregate Intrinsic Value, Vested and exercisable at end of period	$ 1,743
Closing price (in dollars per share)	$ 15.49
Intrinsic value of options exercised	$ 700	$ 300

Equity Incentive Plans and St_7

Equity Incentive Plans and Stock-Based Compensation - Information About Stock Options (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 0.7	$ 0.3

Equity Incentive Plans and St_8

Equity Incentive Plans and Stock-Based Compensation - Summary of RSU activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested at end of period (in shares)	3,356,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested	$ 51,989
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested at beginning of period (in shares)	3,218,000
Granted (in shares)	571,000
Released (in shares)	(380,000)
Canceled (in shares)	(53,000)
Unvested at end of period (in shares)	2,478,499
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Unvested at beginning of period (in dollars per share)	$ 11.14
Granted (in dollars per share)	13.34
Released (in dollars per share)	7.95
Canceled (in dollars per share)	12.18
Unvested at ending of period (in dollars per share)	$ 11.86
Weighted-Average Remaining Vesting Term (years)	1 year 9 months
Fair value of released awards	$ 3,000	$ 2,400
Performance Stock Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested at end of period (in shares)	877,794

Equity Incentive Plans and St_9

Equity Incentive Plans and Stock-Based Compensation - Stock Repurchase Program (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2023	Dec. 31, 2022	Nov. 01, 2022	Oct. 28, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury Stock, Shares		13,384,000	13,384,000
Stock Repurchase Program, Authorized Amount				$ 50,000	$ 100,000
Treasury Stock, Value, Acquired, Cost Method	$ 28,300
Treasury Stock, Shares, Acquired	2,100,000

Net Income Per Share - Summary

Net Income Per Share - Summary of Outstanding Shares of Common Stock Equivalents (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share Diluted [Line Items]
Net income	$ 3,958	$ 6,349
Weighted-average shares outstanding - basic (in shares)	74,001	76,795
Weighted Average Number Diluted Shares Outstanding Adjustment	1,540	2,490
Weighted-average shares outstanding - diluted (in shares)	75,541	79,285
Basic	$ 0.05	$ 0.08
Diluted	$ 0.05	$ 0.08
Stock options, restricted stock units and employee stock purchase rights
Earnings Per Share Diluted [Line Items]
Anti-dilutive securities excluded from computation of diluted net income per share	186	233

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 964	$ 1,140
Unrecognized tax benefits	$ 7,100

Geographic Information - Schedu

Geographic Information - Schedule of Total Revenue Based on Customer's Location (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Total revenue	$ 57,691	$ 62,672
Americas
Segment Reporting Information [Line Items]
Total revenue	29,956	32,958
Americas
Segment Reporting Information [Line Items]
Total revenue	24,121	29,174
Americas excluding United States
Segment Reporting Information [Line Items]
Total revenue	5,835	3,784
APJ
Segment Reporting Information [Line Items]
Total revenue	15,760	17,789
APAC excluding Japan
Segment Reporting Information [Line Items]
Total revenue	5,431	6,249
Japan
Segment Reporting Information [Line Items]
Total revenue	10,329	11,540
EMEA
Segment Reporting Information [Line Items]
Total revenue	$ 11,975	$ 11,925

Geographic Information - Long L

Geographic Information - Long Lived Assets By Geographic Area (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 42,304	$ 40,940
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	39,093	37,420
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	1,645	1,852
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 1,566	$ 1,668

Revenue - Additional Informatio

Revenue - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accumulated deficit	$ 126,496,000		$ 130,454,000
Deferred revenue	128,498,000		126,992,000
Revenue recognized	25,200,000	$ 24,600,000
Asset impairment charges for contract assets	0
Deferred contract acquisition costs	6,103,000		6,144,000
Deferred Sales Commissions
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Deferred contract acquisition costs	4,100,000		4,300,000
Amortization	1,900,000	$ 2,000,000
Impairment loss of contract acquisition costs	0
Deferred contract acquisition costs	$ 6,100,000		$ 6,100,000

Revenue - Contract Balances (De

Revenue - Contract Balances (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 67,007	$ 72,928
Deferred revenue	75,729	74,340
Deferred revenue, non-current	52,769	52,652
Deferred contract acquisition costs	$ 6,103	$ 6,144

Revenue - Remaining Performance

Revenue - Remaining Performance Obligations (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 128,498
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 75,729
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 43,409
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 9,360
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation period	4 years

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	Jun. 01, 2023	May 15, 2023	May 04, 2023	Nov. 01, 2022	Oct. 28, 2021
Subsequent Event [Line Items]
Stock Repurchase Program, Authorized Amount				$ 50	$ 100
Subsequent event
Subsequent Event [Line Items]
Dividends Payable, Date Declared			May 04, 2023
Common Stock, Dividends, Per Share, Declared	$ 0.06
Dividends Payable, Date to be Paid	Jun. 01, 2023
Dividends Payable, Date of Record		May 15, 2023